This is the start of the stable review cycle for the 4.16.17 release. There are 279 patches in this series, all will be posted as a response to this one. If anyone has any issues with these being applied, please let me know.
Responses should be made by Wed Jun 20 08:05:28 UTC 2018. Anything received after that time might be too late.
The whole patch series can be found in one patch at: https://www.kernel.org/pub/linux/kernel/v4.x/stable-review/patch-4.16.17-rc1... or in the git tree and branch at: git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-4.16.y and the diffstat can be found below.
thanks,
greg k-h
------------- Pseudo-Shortlog of commits:
Greg Kroah-Hartman gregkh@linuxfoundation.org Linux 4.16.17-rc1
Russell King rmk+kernel@armlinux.org.uk ARM: fix kill( ,SIGFPE) breakage
Russell King rmk+kernel@armlinux.org.uk ARM: replace unnecessary perl with sed and the shell $(( )) operator
Russell King rmk+kernel@armlinux.org.uk ARM: kexec: fix kdump register saving on panic()
Łukasz Stelmach l.stelmach@samsung.com ARM: 8758/1: decompressor: restore r1 and r2 just before jumping to the kernel
Łukasz Stelmach l.stelmach@samsung.com ARM: 8753/1: decompressor: add a missing parameter to the addruart macro
Mark Rutland mark.rutland@arm.com efi/libstub/arm64: Handle randomized TEXT_OFFSET
Darren Hart dvhart@infradead.org platform/x86: DELL_WMI use depends on instead of select for DELL_SMBIOS
Helge Deller deller@gmx.de parisc: Move setup_profiling_timer() out of init section
Mathieu Malaterre malat@debian.org sched/deadline: Make the grub_reclaim() function static
Mathieu Malaterre malat@debian.org sched/debug: Move the print_rt_rq() and print_dl_rq() declarations to kernel/sched/sched.h
Dan Carpenter dan.carpenter@oracle.com drm/dumb-buffers: Integer overflow in drm_mode_create_ioctl()
Waiman Long longman@redhat.com locking/percpu-rwsem: Annotate rwsem ownership transfer by setting RWSEM_OWNER_UNKNOWN
Waiman Long longman@redhat.com locking/rwsem: Add a new RWSEM_ANONYMOUSLY_OWNED flag
Stefan Agner stefan@agner.ch clk: imx6ull: use OSC clock during AXI rate change
Geert Uytterhoeven geert@linux-m68k.org mtd: rawnand: Fix return type of __DIVIDE() when called with 32-bit
Wanpeng Li wanpengli@tencent.com KVM: X86: Lower the default timer frequency limit to 200us
Sekhar Nori nsekhar@ti.com ARM: davinci: board-dm646x-evm: set VPIF capture card name
Sekhar Nori nsekhar@ti.com ARM: davinci: board-dm646x-evm: pass correct I2C adapter id for VPIF
Sekhar Nori nsekhar@ti.com ARM: davinci: dm646x: fix timer interrupt generation
Peter Rosin peda@axentia.se i2c: viperboard: return message count on master_xfer success
Peter Rosin peda@axentia.se i2c: pmcmsp: fix error return from master_xfer
Peter Rosin peda@axentia.se i2c: pmcmsp: return message count on master_xfer success
Russell King rmk+kernel@armlinux.org.uk ARM: keystone: fix platform_domain_notifier array overrun
Daniel Glöckner dg@emlix.com usb: musb: fix remote wakeup racing with suspend
David Howells dhowells@redhat.com afs: Fix the non-encryption of calls
Marc Dionne marc.dionne@auristor.com afs: Fix afs_find_server search loop
David Howells dhowells@redhat.com afs: Fix the handling of CB.InitCallBackState3 to find the server by UUID
David Howells dhowells@redhat.com afs: Fix VNOVOL handling in address rotation
Ben Hutchings ben@decadent.org.uk mtd: Fix comparison in map_word_andequal()
David Howells dhowells@redhat.com afs: Fix server rotation's handling of fileserver probe failure
David Howells dhowells@redhat.com afs: Fix refcounting in callback registration
David Howells dhowells@redhat.com afs: Fix address list parsing
Dave Hansen dave.hansen@linux.intel.com x86/pkeys/selftests: Add a test for pkey 0
Dave Hansen dave.hansen@linux.intel.com x86/pkeys/selftests: Save off 'prot' for allocations
Dave Hansen dave.hansen@linux.intel.com x86/pkeys/selftests: Fix pointer math
Dave Hansen dave.hansen@linux.intel.com x86/pkeys/selftests: Fix pkey exhaustion test off-by-one
Dave Hansen dave.hansen@linux.intel.com x86/pkeys/selftests: Add PROT_EXEC test
Dave Hansen dave.hansen@linux.intel.com x86/pkeys/selftests: Factor out "instruction page"
Dave Hansen dave.hansen@linux.intel.com x86/pkeys/selftests: Allow faults on unknown keys
Dave Hansen dave.hansen@linux.intel.com x86/pkeys/selftests: Avoid printf-in-signal deadlocks
Dave Hansen dave.hansen@linux.intel.com x86/pkeys/selftests: Remove dead debugging code, fix dprint_in_signal
Dave Hansen dave.hansen@linux.intel.com x86/pkeys/selftests: Stop using assert()
Dave Hansen dave.hansen@linux.intel.com x86/pkeys/selftests: Give better unexpected fault error messages
Andy Lutomirski luto@kernel.org x86/selftests: Add mov_to_ss test
Ingo Molnar mingo@kernel.org x86/mpx/selftests: Adjust the self-test to fresh distros that export the MPX ABI
Ingo Molnar mingo@kernel.org x86/pkeys/selftests: Adjust the self-test to fresh distros that export the pkeys ABI
Ingo Molnar mingo@kernel.org objtool, kprobes/x86: Sync the latest <asm/insn.h> header with tools/objtool/arch/x86/include/asm/insn.h
Masami Hiramatsu mhiramat@kernel.org uprobes/x86: Prohibit probing on MOV SS instruction
Masami Hiramatsu mhiramat@kernel.org kprobes/x86: Prohibit probing on exception masking instructions
Ashish Samant ashish.samant@oracle.com ocfs2: take inode cluster lock before moving reflinked inode from orphan dir
Laura Abbott labbott@redhat.com proc/kcore: don't bounds check against address 0
Jeffrey Hugo jhugo@codeaurora.org init: fix false positives in W+X checking
Yury Norov ynorov@caviumnetworks.com lib/find_bit_benchmark.c: avoid soft lockup in test_find_first_bit()
Roman Mashak mrv@mojatatu.com net sched actions: fix invalid pointer dereferencing if skbedit flags missing
Colin Ian King colin.king@canonical.com ixgbe: fix memory leak on ipsec allocation
Emil Tantilov emil.s.tantilov@intel.com ixgbe: return error on unsupported SFP module when resetting
Rob Herring robh@kernel.org sh: switch to NO_BOOTMEM
Leo Yan leo.yan@linaro.org perf cs-etm: Support unknown_thread in cs_etm_auxtrace
Marian Rotariu mrotariu@bitdefender.com x86: Delay skip of emulated hypercall instruction
Wanpeng Li wanpengli@tencent.com KVM: Extend MAX_IRQ_ROUTES to 4096 for all archs
Nikita Yushchenko nikita.yoush@cogentembedded.com ARM: dts: imx51-zii-rdu1: fix touchscreen bindings
David Howells dhowells@redhat.com rxrpc: Fix the min security level for kernel calls
David Howells dhowells@redhat.com rxrpc: Fix error reception on AF_INET6 sockets
David Howells dhowells@redhat.com rxrpc: Fix missing start of call timeout
Ganesh Goudar ganeshgr@chelsio.com cxgb4: copy mbox log size to PF0-3 adap instances
Michal Kalderon Michal.Kalderon@cavium.com qede: Fix gfp flags sent to rdma event node allocation
Michal Kalderon Michal.Kalderon@cavium.com qed: Fix l2 initializations over iWARP personality
Ying Xue ying.xue@windriver.com tipc: eliminate KMSAN uninit-value in strcmp complaint
Mathieu Malaterre malat@debian.org agp: uninorth: make two functions static
Andrey Grodzovsky andrey.grodzovsky@amd.com drm/amdgpu: Switch to interruptable wait to recover from ring hang.
Paulo Alcantara palcantara@suse.de cifs: smb2ops: Fix listxattr() when there are no EAs
Long Li longli@microsoft.com cifs: Allocate validate negotiation request through kmalloc
David Gilhooley dgilhooley@nvidia.com arm64: Add MIDR encoding for NVIDIA CPUs
Hans de Goede hdegoede@redhat.com HID: i2c-hid: Add RESEND_REPORT_DESCR quirk for Toshiba Click Mini L9W-B
Jakob Unterwurzacher jakob.unterwurzacher@theobroma-systems.com can: dev: increase bus-off message severity
Michael Ellerman mpe@ellerman.id.au powerpc/pseries: Fix CONFIG_NUMA=n build
Igor Russkikh igor.russkikh@aquantia.com net: aquantia: Limit number of vectors to actually allocated irqs
Igor Russkikh igor.russkikh@aquantia.com net: aquantia: driver should correctly declare vlan_features bits
van der Linden, Frank fllinden@amazon.com x86/xen: Reset VCPU0 info pointer after shared_info remap
Sara Sharon sara.sharon@intel.com mac80211: use timeout from the AddBA response instead of the request
Clément Péron peron.clem@gmail.com ARM: dts: cygnus: fix irq type for arm global timer
Mathieu Malaterre malat@debian.org driver core: add __printf verification to __ata_ehi_pushv_desc
Jianchao Wang jianchao.w.wang@oracle.com nvme: fix use-after-free in nvme_free_ns_head
Tomi Valkeinen tomi.valkeinen@ti.com drm/omap: handle alloc failures in omap_connector
Tomi Valkeinen tomi.valkeinen@ti.com drm/omap: check return value from soc_device_match
Tomi Valkeinen tomi.valkeinen@ti.com drm/omap: fix possible NULL ref issue in tiler_reserve_2d
Tomi Valkeinen tomi.valkeinen@ti.com drm/omap: fix uninitialized ret variable
Dan Carpenter dan.carpenter@oracle.com drm/omap: silence unititialized variable warning
Eric Anholt eric@anholt.net drm/vc4: Fix oops dereferencing DPI's connector since panel_bridge.
Ilan Peer ilan.peer@intel.com mac80211: Adjust SAE authentication timeout
Naveen N. Rao naveen.n.rao@linux.vnet.ibm.com powerpc/trace/syscalls: Update syscall name matching logic to account for ppc_ prefix
Naveen N. Rao naveen.n.rao@linux.vnet.ibm.com powerpc/trace/syscalls: Update syscall name matching logic
Etienne Carriere etienne.carriere@linaro.org tee: check shm references are consistent in offset/size
Rich Felker dalias@libc.org sh: fix build failure for J2 cpu with SMP disabled
Masahiro Yamada yamada.masahiro@socionext.com gcc-plugins: fix build condition of SANCOV plugin
Bhadram Varka vbhadram@nvidia.com net: phy: broadcom: add support for BCM89610 PHY
Peter Zijlstra peterz@infradead.org sched/core: Introduce set_special_state()
Daniel Borkmann daniel@iogearbox.net bpf: use array_index_nospec in find_prog_type
Tobias Jakobi tjakobi@math.uni-bielefeld.de drm/exynos: mixer: avoid Oops in vp_video_buffer()
Andrzej Hajda a.hajda@samsung.com drm/exynos/mixer: fix synchronization check in interlaced mode
Mark Rutland mark.rutland@arm.com bpf: fix possible spectre-v1 in find_and_alloc_map()
Rob Herring robh@kernel.org spi: bcm2835aux: ensure interrupts are enabled for shared handler
Parav Pandit parav@mellanox.com RDMA/cma: Do not query GID during QP state transition to RTR
Jack Morgenstein jackm@dev.mellanox.co.il IB/mlx4: Fix integer overflow when calculating optimal MTT size
Sebastian Sanchez sebastian.sanchez@intel.com IB/hfi1: Fix memory leak in exception path in get_irq_affinity()
Sebastian Sanchez sebastian.sanchez@intel.com IB/{hfi1, rdmavt}: Fix memory leak in hfi1_alloc_devdata() upon failure
Michael J. Ruhl michael.j.ruhl@intel.com IB/hfi1 Use correct type for num_user_context
Stefan Raspl stefan.raspl@linux.ibm.com smc: fix sendpage() call
Heikki Krogerus heikki.krogerus@linux.intel.com usb: typec: tps6598x: handle block reads separately with plain-I2C adapters
Graeme Smecher gsmecher@threespeedlogic.com ARM: dts: correct missing "compatible" entry for ti81xx SoCs
Janusz Krzysztofik jmkrzyszt@gmail.com ARM: OMAP1: ams-delta: fix deferred_fiq handler
Keith Busch keith.busch@intel.com nvme/multipath: Fix multipath disabled naming collisions
Keith Busch keith.busch@intel.com nvme/multipath: Disable runtime writable enabling parameter
Keith Busch keith.busch@intel.com nvme: Set integrity flag for user passthrough commands
Chengguang Xu cgxu519@gmx.com nvme: fix potential memory leak in option parsing
Changbin Du changbin.du@intel.com iommu/vt-d: fix shift-out-of-bounds in bug checking
Jagannathan Raman jag.raman@oracle.com iommu/vt-d: Fix usage of force parameter in intel_ir_reconfigure_irte()
Bhadram Varka vbhadram@nvidia.com arm64: tegra: Make BCM89610 PHY interrupt as active low
Peter Zijlstra peterz@infradead.org kthread, sched/wait: Fix kthread_parkme() completion issue
Peter Zijlstra peterz@infradead.org kthread, sched/wait: Fix kthread_parkme() wait-loop
Peter Zijlstra peterz@infradead.org stop_machine, sched: Fix migrate_swap() vs. active_balance() deadlock
Helge Deller deller@gmx.de parisc: drivers.c: Fix section mismatches
Daniel Borkmann daniel@iogearbox.net bpf, x64: fix memleak when not converging on calls
Daniel Borkmann daniel@iogearbox.net bpf, x64: fix memleak when not converging after image
Ladislav Michl ladis@linux-mips.org mtd: onenand: omap2: Disable DMA for HIGHMEM buffers
Mika Westerberg mika.westerberg@linux.intel.com pinctrl: cherryview: Associate IRQ descriptors to irqdomain
Yixun Lan yixun.lan@amlogic.com pinctrl: meson-axg: fix the range of aobus bank
Sekhar Nori nsekhar@ti.com ARM: davinci: fix GPIO lookup for I2C
Jim Gill jgill@vmware.com scsi: vmw-pvscsi: return DID_BUS_BUSY for adapter-initated aborts
Arnd Bergmann arnd@arndb.de hexagon: export csum_partial_copy_nocheck
Arnd Bergmann arnd@arndb.de hexagon: add memset_io() helper
Nick Dyer nick@shmanahar.org Input: atmel_mxt_ts - fix the firmware update
Chuck Lever chuck.lever@oracle.com xprtrdma: Fix list corruption / DMAR errors during MR recovery
Adam Ford aford173@gmail.com ARM: dts: logicpd-som-lv: Fix Audio Mute
Adam Ford aford173@gmail.com ARM: dts: logicpd-som-lv: Fix WL127x Startup Issues
Tero Kristo t-kristo@ti.com ARM: OMAP2+: powerdomain: use raw_smp_processor_id() for trace
Geert Uytterhoeven geert+renesas@glider.be dt-bindings: panel: lvds: Fix path to display timing bindings
Sekhar Nori nsekhar@ti.com ARM: davinci: board-dm355-evm: fix broken networking
Sekhar Nori nsekhar@ti.com ARM: davinci: board-omapl138-hawk: fix GPIO numbers for MMC/SD lookup
Sekhar Nori nsekhar@ti.com ARM: davinci: board-da850-evm: fix GPIO lookup for MMC/SD
Sekhar Nori nsekhar@ti.com ARM: davinci: board-da830-evm: fix GPIO lookup for MMC/SD
Håkon Bugge haakon.bugge@oracle.com IB/core: Make ib_mad_client_id atomic
Amir Goldstein amir73il@gmail.com <linux/stringhash.h>: fix end_name_hash() for 64bit long
oulijun oulijun@huawei.com RDMA/hns: Submit bad wr
oulijun oulijun@huawei.com RDMA/hns: Fix the qp context state diagram
oulijun oulijun@huawei.com RDMA/hns: Intercept illegal RDMA operation when use inline data
oulijun oulijun@huawei.com RDMA/hns: Bugfix for init hem table
Zhu Yanjun yanjun.zhu@oracle.com IB/rxe: avoid double kfree_skb
Jianchao Wang jianchao.w.wang@oracle.com IB/rxe: add RXE_START_MASK for rxe_opcode IB_OPCODE_RC_SEND_ONLY_INV
Colin Ian King colin.king@canonical.com RDMA/iwpm: fix memory leak on map_info
Parav Pandit parav@mellanox.com RDMA/cma: Fix use after destroy access to net namespace for IPoIB
Matan Barak matanb@mellanox.com IB/uverbs: Fix validating mandatory attributes
Junaid Shahid junaids@google.com kvm: apic: Flush TLB after APIC mode/address change if VPIDs are in use
Maxime Chevallier maxime.chevallier@bootlin.com net: mvpp2: Fix clk error path in mvpp2_probe
Greg Thelen gthelen@google.com IB: make INFINIBAND_ADDR_TRANS configurable
Greg Thelen gthelen@google.com ib_srp: depend on INFINIBAND_ADDR_TRANS
Greg Thelen gthelen@google.com cifs: smbd: depend on INFINIBAND_ADDR_TRANS
Greg Thelen gthelen@google.com ib_srpt: depend on INFINIBAND_ADDR_TRANS
Greg Thelen gthelen@google.com nvmet-rdma: depend on INFINIBAND_ADDR_TRANS
Greg Thelen gthelen@google.com nvme: depend on INFINIBAND_ADDR_TRANS
Jakub Kicinski jakub.kicinski@netronome.com nfp: don't depend on eth_tbl being available
Jon Maloy jon.maloy@ericsson.com tipc: fix bug in function tipc_nl_node_dump_monitor
Leon Romanovsky leonro@mellanox.com RDMA/mlx5: Properly check return value of mlx5_get_uars_page
Baolin Wang baolin.wang@linaro.org i2c: sprd: Fix the i2c count issue
Baolin Wang baolin.wang@linaro.org i2c: sprd: Prevent i2c accesses after suspend is called
Masahiro Yamada yamada.masahiro@socionext.com reset: uniphier: fix USB clock line for LD20
Laurentiu Tudor laurentiu.tudor@nxp.com powerpc/kvm/booke: Fix altivec related build break
Stefano Brivio sbrivio@redhat.com vti6: Change minimum MTU to IPV4_MIN_MTU, vti6 can carry IPv4 too
John Fastabend john.fastabend@gmail.com bpf: fix uninitialized variable in bpf tools
jacek.tomaka@poczta.fm jacek.tomaka@poczta.fm x86/cpu/intel: Add missing TLB cpuid values
Evan Wang xswang@marvell.com ata: ahci: mvebu: override ahci_stop_engine for mvebu AHCI
Evan Wang xswang@marvell.com libahci: Allow drivers to override stop_engine
Mark Rutland mark.rutland@arm.com KVM: arm/arm64: vgic: fix possible spectre-v1 in vgic_mmio_read_apr()
Mark Rutland mark.rutland@arm.com arm64: fix possible spectre-v1 in ptrace_hbp_get_event()
Omar Sandoval osandov@fb.com blk-mq: fix sysfs inflight counter
Arvind Yadav arvind.yadav.cs@gmail.com HID: intel-ish-hid: use put_device() instead of kfree()
Ramon Fried rfried@codeaurora.org rpmsg: added MODULE_ALIAS for rpmsg_char
Tobias Jordan Tobias.Jordan@elektrobit.com remoteproc: qcom: Fix potential device node leaks
Kan Liang kan.liang@linux.intel.com perf/x86/intel: Don't enable freeze-on-smi for PerfMon V1
Dag Moxnes dag.moxnes@oracle.com rds: ib: Fix missing call to rds_ib_dev_put in rds_ib_setup_qp
Gianluca Borello g.borello@gmail.com bpf, x64: fix JIT emission for dead code
Masami Hiramatsu mhiramat@kernel.org selftests: ftrace: Add a testcase for multiple actions on trigger
Arvind Yadav arvind.yadav.cs@gmail.com HID: wacom: Release device resource data obtained by devres_alloc()
pgzh peter.ganzhorn@gmail.com HID: lenovo: Add support for IBM/Lenovo Scrollpoint mice
Kan Liang kan.liang@linux.intel.com perf pmu: Fix core PMU alias list for X86 platform
Mark Rutland mark.rutland@arm.com arm64: only advance singlestep for user instruction traps
Mark Rutland mark.rutland@arm.com arm64: ptrace: remove addr_limit manipulation
Aurelien Jarno aurelien@aurel32.net RISC-V: build vdso-dummy.o with -no-pie
Christoph Hellwig hch@lst.de riscv: select DMA_DIRECT_OPS instead of redefining it
Florian Fainelli f.fainelli@gmail.com net: ethtool: Add missing kernel doc for FEC parameters
Vinicius Costa Gomes vinicius.gomes@intel.com igb: Fix the transmission mode of queue 0 for Qav mode
Masahiro Yamada yamada.masahiro@socionext.com arm64: dts: uniphier: fix input delay value for legacy mode of eMMC
Steve French smfrench@gmail.com CIFS: set *resp_buf_type to NO_BUFFER on error
Hans de Goede hdegoede@redhat.com thermal: int3403_thermal: Fix NULL pointer deref on module load / probe
Markus Mayer mmayer@broadcom.com cpufreq: brcmstb-avs-cpufreq: remove development debug support
Andres Rodriguez andres.rodriguez@amd.com drm/amdkfd: fix clock counter retrieval for node without GPU
Mika Westerberg mika.westerberg@linux.intel.com ACPI / watchdog: Prefer iTCO_wdt on Lenovo Z50-70
Sekhar Nori nsekhar@ti.com ARM: dts: da850: fix W=1 warnings with pinmux node
Jingju Hou Jingju.Hou@synaptics.com net: phy: marvell: clear wol event before setting it
Balbir Singh bsingharora@gmail.com powerpc/powernv/memtrace: Let the arch hotunplug code flush cache
Geert Uytterhoeven geert+renesas@glider.be dt-bindings: mvebu-uart: DT fix s/interrupts-names/interrupt-names/
Geert Uytterhoeven geert+renesas@glider.be dt-bindings: meson-uart: DT fix s/clocks-names/clock-names/
Mika Westerberg mika.westerberg@linux.intel.com ACPI / scan: Initialize watchdog before PNP
Chen Yu yu.c.chen@intel.com ACPI / PM: Blacklist Low Power S0 Idle _DSM for ThinkPad X1 Tablet(2016)
Julian Wiedmann jwi@linux.vnet.ibm.com s390/qeth: use Read device to query hypervisor for MAC
Julian Wiedmann jwi@linux.vnet.ibm.com s390/qeth: fix request-side race during cmd IO timeout
Julian Wiedmann jwi@linux.vnet.ibm.com s390/qeth: fix MAC address update sequence
Tobias Regnery tobias.regnery@gmail.com usb: typec: ucsi: fix tracepoint related build error
Minchan Kim minchan@kernel.org mm: memcg: add __GFP_NOWARN in __memcg_schedule_kmem_cache_create()
Dave Young dyoung@redhat.com kexec_file: do not add extra alignment to efi memmap
Alexey Dobriyan adobriyan@gmail.com proc: fix /proc/loadavg regression
Alexey Dobriyan adobriyan@gmail.com proc: revalidate kernel thread inodes to root:root
Huang Ying ying.huang@intel.com mm, pagemap: fix swap offset value for PMD migration entry
Colin Ian King colin.king@canonical.com scsi: isci: Fix infinite loop in while loop
Long Li longli@microsoft.com scsi: storvsc: Set up correct queue depth values for IDE devices
Baolin Wang baolin.wang@linaro.org parisc: time: Convert read_persistent_clock() to read_persistent_clock64()
David Howells dhowells@redhat.com vfs: Undo an overly zealous MS_RDONLY -> SB_RDONLY conversion
David Howells dhowells@redhat.com afs: Fix server record deletion
dann frazier dann.frazier@canonical.com net: hns: Avoid action name truncation
Jiang Biao jiang.biao2@zte.com.cn blkcg: init root blkcg_gq under lock
Emil Velikov emil.velikov@collabora.com drm/msm: don't deref error pointer in the msm_fbdev_create error path
Stefan Agner stefan@agner.ch drm/msm/dsi: use correct enum in dsi_get_cmd_fmt
Ben Hutchings ben.hutchings@codethink.co.uk drm/msm: Fix possible null dereference on failure of get_pages()
Srinivas Kandagatla srinivas.kandagatla@linaro.org ASoC: msm8916-wcd-analog: use threaded context for mbhc events
Taehee Yoo ap420073@gmail.com netfilter: nf_tables: fix out-of-bounds in nft_chain_commit_update
Pablo Neira Ayuso pablo@netfilter.org netfilter: nf_tables: NAT chain and extensions require NF_TABLES
Ming Lei ming.lei@redhat.com scsi: target: fix crash with iscsi target and dvd
Vinson Lee vlee@freedesktop.org scsi: megaraid_sas: Do not log an error if FW successfully initializes.
Chris Leech cleech@redhat.com scsi: iscsi: respond to netlink with unicast when appropriate
Srinath Mannam srinath.mannam@broadcom.com arm64: dts: correct SATA addresses for Stingray
Tung Nguyen tung.q.nguyen@dektech.com.au tipc: fix infinite loop when dumping link monitor summary
Martin Blumenstingl martin.blumenstingl@googlemail.com ARM64: dts: meson-gxm-khadas-vim2: enable the USB controller
Martin Blumenstingl martin.blumenstingl@googlemail.com ARM64: dts: meson-gxl-nexbox-a95x: enable the USB controller
Martin Blumenstingl martin.blumenstingl@googlemail.com ARM64: dts: meson-gxl-s905x-libretech-cc: enable the USB controller
Martin Blumenstingl martin.blumenstingl@googlemail.com ARM64: dts: meson-gx-p23x-q20x: enable the USB controller
Martin Blumenstingl martin.blumenstingl@googlemail.com ARM64: dts: meson-gxl-s905x-p212: enable the USB controller
Martin Blumenstingl martin.blumenstingl@googlemail.com ARM64: dts: meson-gxm: add GXM specific USB host configuration
Martin Blumenstingl martin.blumenstingl@googlemail.com ARM64: dts: meson-gxl: add USB host support
Jiang Biao jiang.biao2@zte.com.cn blkcg: don't hold blkcg lock when deactivating policy
sxauwsk sxauwsk@163.com spi: cadence: Add usleep_range() for cdns_spi_fill_tx_fifo()
Liam Girdwood liam.r.girdwood@linux.intel.com ASoC: topology: Check widget kcontrols before deref.
Mark Rutland mark.rutland@arm.com arm64: kasan: avoid pfn_to_nid() before page array is initialized
Simon Gaiser simon@invisiblethingslab.com xen: xenbus_dev_frontend: Really return response string
Andre Przywara andre.przywara@arm.com KVM: arm/arm64: vgic: Kick new VCPU on interrupt migration
Petr Mladek pmladek@suse.com livepatch: Allow to call a custom callback when freeing shadow variables
Petr Mladek pmladek@suse.com livepatch: Initialize shadow variables safely by a custom callback
Yan Wang yan.wang@linux.intel.com ASoC: topology: Fix bugs of freeing soc topology
Loic Poulain loic.poulain@linaro.org PCI: kirin: Fix reset gpio name
Madhavan Srinivasan maddy@linux.vnet.ibm.com powerpc/64s: Default l1d_size to 64K in RFI fallback flush
Geert Uytterhoeven geert@linux-m68k.org soc: bcm2835: Make !RASPBERRYPI_FIRMWARE dummies return failure
Florian Fainelli f.fainelli@gmail.com soc: bcm: raspberrypi-power: Fix use of __packed
Tyler Hicks tyhicks@canonical.com eCryptfs: don't pass up plaintext names when using filename encryption
Tony Lindgren tony@atomide.com ARM: dts: Fix cm2 and prm sizes for omap4
oder_chiou@realtek.com oder_chiou@realtek.com ASoC: rt5514: Add the missing register in the readable table
Jerome Brunet jbrunet@baylibre.com clk: honor CLK_MUX_ROUND_CLOSEST in generic clk mux
Paolo Bonzini pbonzini@redhat.com kvm: x86: move MSR_IA32_TSC handling to x86.c
KarimAllah Ahmed karahmed@amazon.de X86/KVM: Properly update 'tsc_offset' to represent the running guest
Jacopo Mondi jacopo+renesas@jmondi.org dt-bindings: dmaengine: rcar-dmac: document R8A77965 support
Jacopo Mondi jacopo+renesas@jmondi.org dt-bindings: serial: sh-sci: Add support for r8a77965 (H)SCIF
Jacopo Mondi jacopo+renesas@jmondi.org dt-bindings: net: ravb: Add support for r8a77965 SoC
Matheus Castello matheus@castello.eng.br dt-bindings: pinctrl: sunxi: Fix reference to driver
Lukasz Majewski lukma@denx.de doc: Add vendor prefix for Kieback & Peter GmbH
Vladimir Zapolskiy vladimir_zapolskiy@mentor.com spi: sh-msiof: Fix bit field overflow writes to TSCR/RSCR
Matt Redfearn matt.redfearn@mips.com MIPS: dts: Boston: Fix PCI bus dtc warnings:
Chengguang Xu cgxu519@gmx.com isofs: fix potential memory leak in mount option parsing
Martin Schwidefsky schwidefsky@de.ibm.com s390/smsgiucv: disable SMSG on module unload
Sinan Kaya okaya@codeaurora.org MIPS: io: Add barrier after register read in readX()
Amir Goldstein amir73il@gmail.com fsnotify: fix ignore mask logic in send_to_group()
Arnaldo Carvalho de Melo acme@redhat.com perf report: Fix switching to another perf.data file
Pieter Jansen van Vuuren pieter.jansenvanvuuren@netronome.com nfp: flower: split and limit cmsg skb lists
Jakub Kicinski jakub.kicinski@netronome.com nfp: ignore signals when communicating with management FW
Nathan Fontenot nfont@linux.vnet.ibm.com ibmvnic: Do not notify peers on parameter change resets
Raghuram Chary J raghuramchary.jallipalli@microchip.com lan78xx: PHY DSP registers initialization to address EEE link drop issues with long cables
Sinan Kaya okaya@codeaurora.org MIPS: io: Prevent compiler reordering writeX()
Krish Sadhukhan krish.sadhukhan@oracle.com x86: Add check for APIC access address for vmentry of L2 guests
Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com ASoC: Intel: atom: fix ACPI/PCI Kconfig
hu huajun huhuajun@linux.alibaba.com KVM: X86: fix incorrect reference of trace_kvm_pi_irte_update
Christophe JAILLET christophe.jaillet@wanadoo.fr Input: synaptics-rmi4 - fix an unchecked out of memory error path
Anson Huang Anson.Huang@nxp.com clocksource/drivers/imx-tpm: Correct some registers operation flow
-------------
Diffstat:
.../bindings/display/panel/panel-common.txt | 2 +- .../devicetree/bindings/dma/renesas,rcar-dmac.txt | 1 + .../devicetree/bindings/net/renesas,ravb.txt | 1 + .../bindings/pinctrl/allwinner,sunxi-pinctrl.txt | 6 +- .../bindings/serial/amlogic,meson-uart.txt | 2 +- .../devicetree/bindings/serial/mvebu-uart.txt | 2 +- .../bindings/serial/renesas,sci-serial.txt | 2 + .../devicetree/bindings/vendor-prefixes.txt | 1 + Documentation/livepatch/shadow-vars.txt | 41 ++- Makefile | 4 +- arch/arm/boot/compressed/Makefile | 8 +- arch/arm/boot/compressed/head.S | 20 +- arch/arm/boot/dts/bcm-cygnus.dtsi | 2 +- arch/arm/boot/dts/da850.dtsi | 2 - arch/arm/boot/dts/dm8148-evm.dts | 2 +- arch/arm/boot/dts/dm8148-t410.dts | 2 +- arch/arm/boot/dts/dm8168-evm.dts | 2 +- arch/arm/boot/dts/dra62x-j5eco-evm.dts | 2 +- arch/arm/boot/dts/imx51-zii-rdu1.dts | 6 +- arch/arm/boot/dts/logicpd-som-lv.dtsi | 11 +- arch/arm/boot/dts/omap4.dtsi | 8 +- arch/arm/include/uapi/asm/siginfo.h | 13 - arch/arm/kernel/machine_kexec.c | 34 ++- arch/arm/mach-davinci/board-da830-evm.c | 9 +- arch/arm/mach-davinci/board-da850-evm.c | 9 +- arch/arm/mach-davinci/board-dm355-evm.c | 15 +- arch/arm/mach-davinci/board-dm644x-evm.c | 10 +- arch/arm/mach-davinci/board-dm646x-evm.c | 5 +- arch/arm/mach-davinci/board-omapl138-hawk.c | 10 +- arch/arm/mach-davinci/dm646x.c | 3 +- arch/arm/mach-keystone/pm_domain.c | 1 + arch/arm/mach-omap1/ams-delta-fiq.c | 28 +- arch/arm/mach-omap2/powerdomain.c | 4 +- arch/arm/vfp/vfpmodule.c | 2 +- .../arm64/boot/dts/amlogic/meson-gx-p23x-q20x.dtsi | 4 + .../dts/amlogic/meson-gxl-s905x-libretech-cc.dts | 12 + .../dts/amlogic/meson-gxl-s905x-nexbox-a95x.dts | 4 + .../boot/dts/amlogic/meson-gxl-s905x-p212.dtsi | 4 + arch/arm64/boot/dts/amlogic/meson-gxl.dtsi | 61 ++++ .../boot/dts/amlogic/meson-gxm-khadas-vim2.dts | 4 + arch/arm64/boot/dts/amlogic/meson-gxm.dtsi | 17 ++ .../boot/dts/broadcom/stingray/stingray-sata.dtsi | 80 ++--- arch/arm64/boot/dts/nvidia/tegra186-p3310.dtsi | 2 +- arch/arm64/boot/dts/socionext/uniphier-ld11.dtsi | 2 +- arch/arm64/boot/dts/socionext/uniphier-ld20.dtsi | 2 +- arch/arm64/boot/dts/socionext/uniphier-pxs3.dtsi | 2 +- arch/arm64/include/asm/cputype.h | 6 + arch/arm64/kernel/ptrace.c | 20 +- arch/arm64/kernel/traps.c | 3 +- arch/arm64/mm/kasan_init.c | 4 +- arch/hexagon/include/asm/io.h | 6 + arch/hexagon/lib/checksum.c | 1 + arch/mips/boot/dts/img/boston.dts | 6 + arch/mips/include/asm/io.h | 4 +- arch/parisc/kernel/drivers.c | 7 +- arch/parisc/kernel/smp.c | 3 +- arch/parisc/kernel/time.c | 2 +- arch/powerpc/include/asm/ftrace.h | 29 +- arch/powerpc/include/asm/topology.h | 13 +- arch/powerpc/kernel/setup_64.c | 11 + arch/powerpc/kvm/booke.c | 7 + arch/powerpc/platforms/cell/spufs/sched.c | 2 +- arch/powerpc/platforms/powernv/memtrace.c | 17 -- arch/riscv/Kconfig | 4 +- arch/riscv/kernel/vdso/Makefile | 2 +- arch/sh/Kconfig | 1 + arch/sh/kernel/cpu/sh2/probe.c | 4 + arch/sh/kernel/setup.c | 1 - arch/sh/mm/init.c | 68 +---- arch/sh/mm/numa.c | 19 -- arch/x86/events/intel/core.c | 9 +- arch/x86/include/asm/insn.h | 18 ++ arch/x86/include/asm/kvm_host.h | 1 + arch/x86/kernel/cpu/intel.c | 3 + arch/x86/kernel/kexec-bzimage64.c | 5 +- arch/x86/kernel/kprobes/core.c | 4 + arch/x86/kernel/uprobes.c | 4 + arch/x86/kvm/hyperv.c | 2 +- arch/x86/kvm/svm.c | 31 +- arch/x86/kvm/vmx.c | 95 +++--- arch/x86/kvm/x86.c | 33 ++- arch/x86/net/bpf_jit_comp.c | 18 +- arch/x86/xen/enlighten_hvm.c | 13 + block/blk-cgroup.c | 22 +- block/blk-mq.c | 19 ++ block/blk-mq.h | 4 +- block/genhd.c | 12 + block/partition-generic.c | 10 +- drivers/acpi/acpi_watchdog.c | 59 +++- drivers/acpi/scan.c | 2 +- drivers/acpi/sleep.c | 13 + drivers/ata/ahci.c | 6 +- drivers/ata/ahci.h | 7 + drivers/ata/ahci_mvebu.c | 56 ++++ drivers/ata/ahci_qoriq.c | 2 +- drivers/ata/ahci_xgene.c | 4 +- drivers/ata/libahci.c | 20 +- drivers/ata/libata-eh.c | 4 +- drivers/ata/sata_highbank.c | 2 +- drivers/char/agp/uninorth-agp.c | 4 +- drivers/clk/clk-mux.c | 10 +- drivers/clk/clk.c | 7 +- drivers/clk/imx/clk-imx6ul.c | 2 +- drivers/clocksource/timer-imx-tpm.c | 8 +- drivers/cpufreq/Kconfig.arm | 10 - drivers/cpufreq/brcmstb-avs-cpufreq.c | 323 +-------------------- drivers/firmware/efi/libstub/arm64-stub.c | 10 + drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c | 6 +- drivers/gpu/drm/amd/amdkfd/kfd_chardev.c | 13 +- drivers/gpu/drm/drm_dumb_buffers.c | 7 +- drivers/gpu/drm/exynos/exynos_mixer.c | 22 +- drivers/gpu/drm/exynos/regs-mixer.h | 1 + drivers/gpu/drm/msm/dsi/dsi_host.c | 2 +- drivers/gpu/drm/msm/msm_fbdev.c | 11 +- drivers/gpu/drm/msm/msm_gem.c | 20 +- drivers/gpu/drm/omapdrm/dss/hdmi4.c | 2 +- drivers/gpu/drm/omapdrm/dss/hdmi4_core.c | 7 +- drivers/gpu/drm/omapdrm/dss/hdmi5.c | 2 +- drivers/gpu/drm/omapdrm/omap_connector.c | 10 + drivers/gpu/drm/omapdrm/omap_dmm_tiler.c | 6 +- drivers/gpu/drm/omapdrm/tcm-sita.c | 2 +- drivers/gpu/drm/vc4/vc4_dpi.c | 25 +- drivers/hid/Kconfig | 7 +- drivers/hid/hid-ids.h | 9 + drivers/hid/hid-lenovo.c | 36 +++ drivers/hid/i2c-hid/i2c-hid.c | 2 + drivers/hid/intel-ish-hid/ishtp/bus.c | 2 +- drivers/hid/wacom_sys.c | 4 +- drivers/i2c/busses/i2c-pmcmsp.c | 4 +- drivers/i2c/busses/i2c-sprd.c | 22 +- drivers/i2c/busses/i2c-viperboard.c | 2 +- drivers/infiniband/Kconfig | 5 +- drivers/infiniband/core/cma.c | 60 ++-- drivers/infiniband/core/iwpm_util.c | 5 +- drivers/infiniband/core/mad.c | 4 +- drivers/infiniband/core/uverbs_ioctl.c | 9 + drivers/infiniband/hw/hfi1/affinity.c | 11 +- drivers/infiniband/hw/hfi1/init.c | 41 ++- drivers/infiniband/hw/hfi1/platform.c | 1 + drivers/infiniband/hw/hfi1/qsfp.c | 2 + drivers/infiniband/hw/hns/hns_roce_hem.c | 8 +- drivers/infiniband/hw/hns/hns_roce_hw_v2.c | 11 +- drivers/infiniband/hw/mlx4/mr.c | 2 +- drivers/infiniband/hw/mlx5/main.c | 4 +- drivers/infiniband/sw/rxe/rxe_opcode.c | 2 +- drivers/infiniband/sw/rxe/rxe_req.c | 1 - drivers/infiniband/sw/rxe/rxe_resp.c | 6 +- drivers/infiniband/ulp/srp/Kconfig | 2 +- drivers/infiniband/ulp/srpt/Kconfig | 2 +- drivers/input/rmi4/rmi_spi.c | 7 +- drivers/input/touchscreen/atmel_mxt_ts.c | 186 +++++++----- drivers/iommu/dmar.c | 2 +- drivers/iommu/intel_irq_remapping.c | 2 +- drivers/mtd/onenand/omap2.c | 105 +++---- drivers/net/can/dev.c | 2 +- drivers/net/ethernet/aquantia/atlantic/aq_nic.c | 3 + drivers/net/ethernet/aquantia/atlantic/aq_nic.h | 1 + .../net/ethernet/aquantia/atlantic/aq_pci_func.c | 20 +- drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c | 3 +- drivers/net/ethernet/hisilicon/hns/hnae.h | 2 +- drivers/net/ethernet/ibm/ibmvnic.c | 3 +- drivers/net/ethernet/intel/igb/igb_main.c | 17 +- drivers/net/ethernet/intel/ixgbe/ixgbe_ipsec.c | 2 +- drivers/net/ethernet/intel/ixgbe/ixgbe_x550.c | 3 + drivers/net/ethernet/marvell/mvpp2.c | 15 +- drivers/net/ethernet/netronome/nfp/flower/cmsg.c | 38 ++- drivers/net/ethernet/netronome/nfp/flower/cmsg.h | 2 + drivers/net/ethernet/netronome/nfp/flower/main.c | 8 +- drivers/net/ethernet/netronome/nfp/flower/main.h | 8 +- drivers/net/ethernet/netronome/nfp/nfp_app_nic.c | 2 +- drivers/net/ethernet/netronome/nfp/nfp_main.h | 4 +- drivers/net/ethernet/netronome/nfp/nfp_net_main.c | 31 +- .../net/ethernet/netronome/nfp/nfpcore/nfp_nsp.c | 3 +- drivers/net/ethernet/qlogic/qed/qed_l2.c | 6 +- drivers/net/ethernet/qlogic/qede/qede_rdma.c | 2 +- drivers/net/phy/broadcom.c | 10 + drivers/net/phy/marvell.c | 9 + drivers/net/phy/microchip.c | 178 +++++++++++- drivers/nvme/host/Kconfig | 2 +- drivers/nvme/host/core.c | 32 +- drivers/nvme/host/fabrics.c | 6 + drivers/nvme/host/multipath.c | 24 +- drivers/nvme/host/nvme.h | 12 + drivers/nvme/target/Kconfig | 2 +- drivers/pci/dwc/pcie-kirin.c | 2 +- drivers/pinctrl/intel/pinctrl-cherryview.c | 16 +- drivers/pinctrl/meson/pinctrl-meson-axg.c | 2 +- drivers/platform/x86/Kconfig | 2 +- drivers/remoteproc/qcom_q6v5_pil.c | 2 + drivers/reset/reset-uniphier.c | 6 +- drivers/rpmsg/rpmsg_char.c | 2 + drivers/s390/net/qeth_core_main.c | 53 ++-- drivers/s390/net/qeth_core_mpc.h | 12 + drivers/s390/net/qeth_l2_main.c | 59 ++-- drivers/s390/net/smsgiucv.c | 2 +- drivers/scsi/isci/port_config.c | 3 +- drivers/scsi/megaraid/megaraid_sas_fusion.c | 6 +- drivers/scsi/scsi_transport_iscsi.c | 29 +- drivers/scsi/storvsc_drv.c | 7 +- drivers/scsi/vmw_pvscsi.c | 2 +- drivers/soc/bcm/raspberrypi-power.c | 2 +- drivers/spi/spi-bcm2835aux.c | 5 + drivers/spi/spi-cadence.c | 8 + drivers/spi/spi-sh-msiof.c | 1 + drivers/target/target_core_pscsi.c | 2 + drivers/tee/tee_core.c | 11 + drivers/thermal/int340x_thermal/int3403_thermal.c | 3 +- drivers/usb/musb/musb_host.c | 5 +- drivers/usb/musb/musb_host.h | 7 +- drivers/usb/musb/musb_virthub.c | 25 +- drivers/usb/typec/tps6598x.c | 47 ++- drivers/usb/typec/ucsi/Makefile | 2 +- drivers/xen/xenbus/xenbus_dev_frontend.c | 3 +- fs/afs/addr_list.c | 25 +- fs/afs/callback.c | 56 +++- fs/afs/cmservice.c | 6 +- fs/afs/internal.h | 7 +- fs/afs/rotate.c | 20 +- fs/afs/rxrpc.c | 7 + fs/afs/server.c | 22 +- fs/afs/server_list.c | 7 +- fs/cifs/Kconfig | 2 +- fs/cifs/smb2ops.c | 6 + fs/cifs/smb2pdu.c | 68 +++-- fs/cifs/transport.c | 5 +- fs/ecryptfs/crypto.c | 41 ++- fs/ecryptfs/file.c | 21 +- fs/isofs/inode.c | 3 + fs/namespace.c | 2 +- fs/notify/fsnotify.c | 25 +- fs/ocfs2/refcounttree.c | 14 +- fs/proc/base.c | 6 + fs/proc/kcore.c | 23 +- fs/proc/loadavg.c | 2 +- fs/proc/task_mmu.c | 6 +- include/linux/brcmphy.h | 1 + include/linux/clk-provider.h | 3 + include/linux/ethtool.h | 2 + include/linux/genhd.h | 4 +- include/linux/kthread.h | 1 + include/linux/kvm_host.h | 8 +- include/linux/livepatch.h | 19 +- include/linux/microchipphy.h | 8 + include/linux/mtd/map.h | 2 +- include/linux/mtd/rawnand.h | 16 +- include/linux/percpu-rwsem.h | 6 +- include/linux/rwsem.h | 6 + include/linux/sched.h | 50 +++- include/linux/sched/signal.h | 2 +- include/linux/stringhash.h | 4 +- include/soc/bcm2835/raspberrypi-firmware.h | 4 +- init/main.c | 7 + kernel/bpf/syscall.c | 19 +- kernel/kthread.c | 50 ++-- kernel/livepatch/shadow.c | 108 ++++--- kernel/locking/rwsem-xadd.c | 19 +- kernel/locking/rwsem.c | 2 - kernel/locking/rwsem.h | 30 +- kernel/module.c | 5 + kernel/sched/core.c | 49 ++-- kernel/sched/deadline.c | 4 +- kernel/sched/rt.c | 2 - kernel/sched/sched.h | 5 +- kernel/signal.c | 17 +- kernel/stop_machine.c | 19 +- lib/find_bit_benchmark.c | 7 +- mm/memcontrol.c | 2 +- net/ipv6/ip6_vti.c | 4 +- net/ipv6/netfilter/Kconfig | 55 ++-- net/mac80211/agg-tx.c | 4 + net/mac80211/mlme.c | 25 +- net/mac80211/tx.c | 3 +- net/netfilter/nf_tables_api.c | 2 +- net/rds/ib_cm.c | 3 +- net/rxrpc/af_rxrpc.c | 2 +- net/rxrpc/ar-internal.h | 1 + net/rxrpc/input.c | 2 +- net/rxrpc/local_object.c | 57 +++- net/rxrpc/output.c | 11 + net/rxrpc/sendmsg.c | 10 + net/sched/act_skbedit.c | 3 +- net/smc/af_smc.c | 6 +- net/sunrpc/xprtrdma/fmr_ops.c | 5 +- net/sunrpc/xprtrdma/frwr_ops.c | 9 +- net/sunrpc/xprtrdma/verbs.c | 5 + net/sunrpc/xprtrdma/xprt_rdma.h | 2 +- net/tipc/monitor.c | 2 +- net/tipc/node.c | 28 +- samples/livepatch/livepatch-shadow-fix1.c | 43 ++- samples/livepatch/livepatch-shadow-fix2.c | 33 ++- scripts/Makefile.gcc-plugins | 2 +- sound/soc/codecs/msm8916-wcd-analog.c | 9 +- sound/soc/codecs/rt5514.c | 3 + sound/soc/intel/Kconfig | 22 +- sound/soc/soc-topology.c | 6 +- tools/bpf/bpf_dbg.c | 7 +- tools/objtool/arch/x86/include/asm/insn.h | 18 ++ tools/perf/util/cs-etm.c | 24 +- tools/perf/util/pmu.c | 20 +- tools/perf/util/symbol.c | 8 +- .../inter-event/trigger-multi-actions-accept.tc | 44 +++ tools/testing/selftests/x86/Makefile | 2 +- tools/testing/selftests/x86/mov_ss_trap.c | 285 ++++++++++++++++++ tools/testing/selftests/x86/mpx-mini-test.c | 7 +- tools/testing/selftests/x86/pkey-helpers.h | 20 +- tools/testing/selftests/x86/protection_keys.c | 254 +++++++++++----- virt/kvm/arm/vgic/vgic-mmio-v2.c | 5 + virt/kvm/arm/vgic/vgic.c | 8 + 308 files changed, 3213 insertions(+), 1735 deletions(-)
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Anson Huang Anson.Huang@nxp.com
[ Upstream commit 506a7be93ff773d5d4cf75a59f342865605b4910 ]
According to i.MX7ULP reference manual, TPM_SC_CPWMS can ONLY be written when counter is disabled, TPM_SC_TOF is write-1-clear, TPM_C0SC_CHF is also write-1-clear, correct these registers initialization flow;
Signed-off-by: Anson Huang Anson.Huang@nxp.com Signed-off-by: Daniel Lezcano daniel.lezcano@linaro.org Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/clocksource/timer-imx-tpm.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-)
--- a/drivers/clocksource/timer-imx-tpm.c +++ b/drivers/clocksource/timer-imx-tpm.c @@ -20,6 +20,7 @@ #define TPM_SC 0x10 #define TPM_SC_CMOD_INC_PER_CNT (0x1 << 3) #define TPM_SC_CMOD_DIV_DEFAULT 0x3 +#define TPM_SC_TOF_MASK (0x1 << 7) #define TPM_CNT 0x14 #define TPM_MOD 0x18 #define TPM_STATUS 0x1c @@ -29,6 +30,7 @@ #define TPM_C0SC_MODE_SHIFT 2 #define TPM_C0SC_MODE_MASK 0x3c #define TPM_C0SC_MODE_SW_COMPARE 0x4 +#define TPM_C0SC_CHF_MASK (0x1 << 7) #define TPM_C0V 0x24
static void __iomem *timer_base; @@ -205,9 +207,13 @@ static int __init tpm_timer_init(struct * 4) Channel0 disabled * 5) DMA transfers disabled */ + /* make sure counter is disabled */ writel(0, timer_base + TPM_SC); + /* TOF is W1C */ + writel(TPM_SC_TOF_MASK, timer_base + TPM_SC); writel(0, timer_base + TPM_CNT); - writel(0, timer_base + TPM_C0SC); + /* CHF is W1C */ + writel(TPM_C0SC_CHF_MASK, timer_base + TPM_C0SC);
/* increase per cnt, div 8 by default */ writel(TPM_SC_CMOD_INC_PER_CNT | TPM_SC_CMOD_DIV_DEFAULT,
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Christophe JAILLET christophe.jaillet@wanadoo.fr
[ Upstream commit 839c42273617787318da7baf6151d553108f5e17 ]
When extending the rmi_spi buffers, we must check that no out of memory error occurs, otherwise we may access data above the currently allocated memory.
Propagate the error code returned by 'rmi_spi_manage_pools()' instead.
Signed-off-by: Christophe JAILLET christophe.jaillet@wanadoo.fr Reviewed-by: Andrew Duggan aduggan@synaptics.com Signed-off-by: Dmitry Torokhov dmitry.torokhov@gmail.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/input/rmi4/rmi_spi.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-)
--- a/drivers/input/rmi4/rmi_spi.c +++ b/drivers/input/rmi4/rmi_spi.c @@ -147,8 +147,11 @@ static int rmi_spi_xfer(struct rmi_spi_x if (len > RMI_SPI_XFER_SIZE_LIMIT) return -EINVAL;
- if (rmi_spi->xfer_buf_size < len) - rmi_spi_manage_pools(rmi_spi, len); + if (rmi_spi->xfer_buf_size < len) { + ret = rmi_spi_manage_pools(rmi_spi, len); + if (ret < 0) + return ret; + }
if (addr == 0) /*
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: hu huajun huhuajun@linux.alibaba.com
[ Upstream commit 2698d82e519413c6ad287e6f14b29e0373ed37f8 ]
In arch/x86/kvm/trace.h, this function is declared as host_irq the first input, and vcpu_id the second, instead of otherwise.
Signed-off-by: hu huajun huhuajun@linux.alibaba.com Signed-off-by: Paolo Bonzini pbonzini@redhat.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/x86/kvm/svm.c | 5 ++--- arch/x86/kvm/vmx.c | 2 +- 2 files changed, 3 insertions(+), 4 deletions(-)
--- a/arch/x86/kvm/svm.c +++ b/arch/x86/kvm/svm.c @@ -5142,9 +5142,8 @@ static int svm_update_pi_irte(struct kvm }
if (!ret && svm) { - trace_kvm_pi_irte_update(svm->vcpu.vcpu_id, - host_irq, e->gsi, - vcpu_info.vector, + trace_kvm_pi_irte_update(host_irq, svm->vcpu.vcpu_id, + e->gsi, vcpu_info.vector, vcpu_info.pi_desc_addr, set); }
--- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -12237,7 +12237,7 @@ static int vmx_update_pi_irte(struct kvm vcpu_info.pi_desc_addr = __pa(vcpu_to_pi_desc(vcpu)); vcpu_info.vector = irq.vector;
- trace_kvm_pi_irte_update(vcpu->vcpu_id, host_irq, e->gsi, + trace_kvm_pi_irte_update(host_irq, vcpu->vcpu_id, e->gsi, vcpu_info.vector, vcpu_info.pi_desc_addr, set);
if (set)
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com
[ Upstream commit 90619eb1dc4f19357fef5e9c13c6c9beead0fd80 ]
The split between ACPI and PCI platforms generated issues with randconfig:
with SND_SST_ATOM_HIFI2_PLATFORM_PCI=y and SND_SST_ATOM_HIFI2_PLATFORM=m, we get this module link failure:
ERROR: "sst_context_init" [sound/soc/intel/atom/sst/snd-intel-sst-acpi.ko] undefined!
ERROR: "sst_context_cleanup" [sound/soc/intel/atom/sst/snd-intel-sst-acpi.ko] undefined!
ERROR: "sst_alloc_drv_context" [sound/soc/intel/atom/sst/snd-intel-sst-acpi.ko] undefined!
ERROR: "intel_sst_pm" [sound/soc/intel/atom/sst/snd-intel-sst-acpi.ko] undefined!
ERROR: "sst_configure_runtime_pm" [sound/soc/intel/atom/sst/snd-intel-sst-acpi.ko] undefined!
To keep things simple, let's expose two configs for SND_SST_ATOM_HIFI2_PLATFORM_PCI and SND_SST_ATOM_HIFI2_PLATFORM_ACPI, which select a common SND_SST_ATOM_HIFI2_PLATFORM option. To avoid breaking existing solutions with the semantics change, SND_SST_ATOM_HIFI2_PLATFORM_ACPI uses "default ACPI" so that "make oldnoconfig" and "make olddefconfig" still work as expected.
Also remove mentions of Medfield while we are at it since it was removed recently.
Reported-by: Arnd Bergmann arnd@arndb.de Fixes: 4772c16ede52 ("ASoC: Intel: Kconfig: Simplify-clarify ACPI/PCI dependencies") Signed-off-by: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com Reviewed-by: Andy Shevchenko andriy.shevchenko@linux.intel.com Acked-By: Vinod Koul vinod.koul@intel.com Signed-off-by: Mark Brown broonie@kernel.org Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- sound/soc/intel/Kconfig | 22 +++++++++++++--------- 1 file changed, 13 insertions(+), 9 deletions(-)
--- a/sound/soc/intel/Kconfig +++ b/sound/soc/intel/Kconfig @@ -72,24 +72,28 @@ config SND_SOC_INTEL_BAYTRAIL for Baytrail Chromebooks but this option is now deprecated and is not recommended, use SND_SST_ATOM_HIFI2_PLATFORM instead.
+config SND_SST_ATOM_HIFI2_PLATFORM + tristate + select SND_SOC_COMPRESS + config SND_SST_ATOM_HIFI2_PLATFORM_PCI - tristate "PCI HiFi2 (Medfield, Merrifield) Platforms" + tristate "PCI HiFi2 (Merrifield) Platforms" depends on X86 && PCI select SND_SST_IPC_PCI - select SND_SOC_COMPRESS + select SND_SST_ATOM_HIFI2_PLATFORM help - If you have a Intel Medfield or Merrifield/Edison platform, then + If you have a Intel Merrifield/Edison platform, then enable this option by saying Y or m. Distros will typically not - enable this option: Medfield devices are not available to - developers and while Merrifield/Edison can run a mainline kernel with - limited functionality it will require a firmware file which - is not in the standard firmware tree + enable this option: while Merrifield/Edison can run a mainline + kernel with limited functionality it will require a firmware file + which is not in the standard firmware tree
-config SND_SST_ATOM_HIFI2_PLATFORM +config SND_SST_ATOM_HIFI2_PLATFORM_ACPI tristate "ACPI HiFi2 (Baytrail, Cherrytrail) Platforms" + default ACPI depends on X86 && ACPI select SND_SST_IPC_ACPI - select SND_SOC_COMPRESS + select SND_SST_ATOM_HIFI2_PLATFORM select SND_SOC_ACPI_INTEL_MATCH select IOSF_MBI help
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Krish Sadhukhan krish.sadhukhan@oracle.com
[ Upstream commit f0f4cf5b306620282db0c59ff963012e1973e025 ]
According to the sub-section titled 'VM-Execution Control Fields' in the section titled 'Basic VM-Entry Checks' in Intel SDM vol. 3C, the following vmentry check must be enforced:
If the 'virtualize APIC-accesses' VM-execution control is 1, the APIC-access address must satisfy the following checks:
- Bits 11:0 of the address must be 0. - The address should not set any bits beyond the processor's physical-address width.
This patch adds the necessary check to conform to this rule. If the check fails, we cause the L2 VMENTRY to fail which is what the associated unit test (following patch) expects.
Reviewed-by: Mihai Carabas mihai.carabas@oracle.com Reviewed-by: Konrad Rzeszutek Wilk konrad.wilk@oracle.com Reviewed-by: Jim Mattson jmattson@google.com Reviewed-by: Wanpeng Li wanpengli@tencent.com Signed-off-by: Krish Sadhukhan krish.sadhukhan@oracle.com Signed-off-by: Paolo Bonzini pbonzini@redhat.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/x86/kvm/vmx.c | 13 +++++++++++++ 1 file changed, 13 insertions(+)
--- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -10338,6 +10338,16 @@ static inline bool nested_vmx_prepare_ms return true; }
+static int nested_vmx_check_apic_access_controls(struct kvm_vcpu *vcpu, + struct vmcs12 *vmcs12) +{ + if (nested_cpu_has2(vmcs12, SECONDARY_EXEC_VIRTUALIZE_APIC_ACCESSES) && + !page_address_valid(vcpu, vmcs12->apic_access_addr)) + return -EINVAL; + else + return 0; +} + static int nested_vmx_check_apicv_controls(struct kvm_vcpu *vcpu, struct vmcs12 *vmcs12) { @@ -11006,6 +11016,9 @@ static int check_vmentry_prereqs(struct if (nested_vmx_check_msr_bitmap_controls(vcpu, vmcs12)) return VMXERR_ENTRY_INVALID_CONTROL_FIELD;
+ if (nested_vmx_check_apic_access_controls(vcpu, vmcs12)) + return VMXERR_ENTRY_INVALID_CONTROL_FIELD; + if (nested_vmx_check_tpr_shadow_controls(vcpu, vmcs12)) return VMXERR_ENTRY_INVALID_CONTROL_FIELD;
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Sinan Kaya okaya@codeaurora.org
[ Upstream commit f6b7aeee8f167409195fbf1364d02988fecad1d0 ]
writeX() has strong ordering semantics with respect to memory updates. In the absence of a write barrier or a compiler barrier, the compiler can reorder register and memory update instructions. This breaks the writeX() API.
Signed-off-by: Sinan Kaya okaya@codeaurora.org Cc: Arnd Bergmann arnd@arndb.de Cc: Ralf Baechle ralf@linux-mips.org Cc: Paul Burton paul.burton@mips.com Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/18997/ [jhogan@kernel.org: Tidy commit message] Signed-off-by: James Hogan jhogan@kernel.org Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/mips/include/asm/io.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/arch/mips/include/asm/io.h +++ b/arch/mips/include/asm/io.h @@ -307,7 +307,7 @@ static inline void iounmap(const volatil #if defined(CONFIG_CPU_CAVIUM_OCTEON) || defined(CONFIG_LOONGSON3_ENHANCEMENT) #define war_io_reorder_wmb() wmb() #else -#define war_io_reorder_wmb() do { } while (0) +#define war_io_reorder_wmb() barrier() #endif
#define __BUILD_MEMORY_SINGLE(pfx, bwlq, type, irq) \
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Raghuram Chary J raghuramchary.jallipalli@microchip.com
[ Upstream commit 1c2734b31d72316e3faaad88c0c9c46fa92a4b20 ]
The patch is to configure DSP registers of PHY device to handle Gbe-EEE failures with >40m cable length.
Fixes: 55d7de9de6c3 ("Microchip's LAN7800 family USB 2/3 to 10/100/1000 Ethernet device driver") Signed-off-by: Raghuram Chary J raghuramchary.jallipalli@microchip.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/net/phy/microchip.c | 178 ++++++++++++++++++++++++++++++++++++++++++- include/linux/microchipphy.h | 8 + 2 files changed, 185 insertions(+), 1 deletion(-)
--- a/drivers/net/phy/microchip.c +++ b/drivers/net/phy/microchip.c @@ -20,6 +20,7 @@ #include <linux/ethtool.h> #include <linux/phy.h> #include <linux/microchipphy.h> +#include <linux/delay.h>
#define DRIVER_AUTHOR "WOOJUNG HUH woojung.huh@microchip.com" #define DRIVER_DESC "Microchip LAN88XX PHY driver" @@ -30,6 +31,16 @@ struct lan88xx_priv { __u32 wolopts; };
+static int lan88xx_read_page(struct phy_device *phydev) +{ + return __phy_read(phydev, LAN88XX_EXT_PAGE_ACCESS); +} + +static int lan88xx_write_page(struct phy_device *phydev, int page) +{ + return __phy_write(phydev, LAN88XX_EXT_PAGE_ACCESS, page); +} + static int lan88xx_phy_config_intr(struct phy_device *phydev) { int rc; @@ -66,6 +77,150 @@ static int lan88xx_suspend(struct phy_de return 0; }
+static int lan88xx_TR_reg_set(struct phy_device *phydev, u16 regaddr, + u32 data) +{ + int val, save_page, ret = 0; + u16 buf; + + /* Save current page */ + save_page = phy_save_page(phydev); + if (save_page < 0) { + pr_warn("Failed to get current page\n"); + goto err; + } + + /* Switch to TR page */ + lan88xx_write_page(phydev, LAN88XX_EXT_PAGE_ACCESS_TR); + + ret = __phy_write(phydev, LAN88XX_EXT_PAGE_TR_LOW_DATA, + (data & 0xFFFF)); + if (ret < 0) { + pr_warn("Failed to write TR low data\n"); + goto err; + } + + ret = __phy_write(phydev, LAN88XX_EXT_PAGE_TR_HIGH_DATA, + (data & 0x00FF0000) >> 16); + if (ret < 0) { + pr_warn("Failed to write TR high data\n"); + goto err; + } + + /* Config control bits [15:13] of register */ + buf = (regaddr & ~(0x3 << 13));/* Clr [14:13] to write data in reg */ + buf |= 0x8000; /* Set [15] to Packet transmit */ + + ret = __phy_write(phydev, LAN88XX_EXT_PAGE_TR_CR, buf); + if (ret < 0) { + pr_warn("Failed to write data in reg\n"); + goto err; + } + + usleep_range(1000, 2000);/* Wait for Data to be written */ + val = __phy_read(phydev, LAN88XX_EXT_PAGE_TR_CR); + if (!(val & 0x8000)) + pr_warn("TR Register[0x%X] configuration failed\n", regaddr); +err: + return phy_restore_page(phydev, save_page, ret); +} + +static void lan88xx_config_TR_regs(struct phy_device *phydev) +{ + int err; + + /* Get access to Channel 0x1, Node 0xF , Register 0x01. + * Write 24-bit value 0x12B00A to register. Setting MrvlTrFix1000Kf, + * MrvlTrFix1000Kp, MasterEnableTR bits. + */ + err = lan88xx_TR_reg_set(phydev, 0x0F82, 0x12B00A); + if (err < 0) + pr_warn("Failed to Set Register[0x0F82]\n"); + + /* Get access to Channel b'10, Node b'1101, Register 0x06. + * Write 24-bit value 0xD2C46F to register. Setting SSTrKf1000Slv, + * SSTrKp1000Mas bits. + */ + err = lan88xx_TR_reg_set(phydev, 0x168C, 0xD2C46F); + if (err < 0) + pr_warn("Failed to Set Register[0x168C]\n"); + + /* Get access to Channel b'10, Node b'1111, Register 0x11. + * Write 24-bit value 0x620 to register. Setting rem_upd_done_thresh + * bits + */ + err = lan88xx_TR_reg_set(phydev, 0x17A2, 0x620); + if (err < 0) + pr_warn("Failed to Set Register[0x17A2]\n"); + + /* Get access to Channel b'10, Node b'1101, Register 0x10. + * Write 24-bit value 0xEEFFDD to register. Setting + * eee_TrKp1Long_1000, eee_TrKp2Long_1000, eee_TrKp3Long_1000, + * eee_TrKp1Short_1000,eee_TrKp2Short_1000, eee_TrKp3Short_1000 bits. + */ + err = lan88xx_TR_reg_set(phydev, 0x16A0, 0xEEFFDD); + if (err < 0) + pr_warn("Failed to Set Register[0x16A0]\n"); + + /* Get access to Channel b'10, Node b'1101, Register 0x13. + * Write 24-bit value 0x071448 to register. Setting + * slv_lpi_tr_tmr_val1, slv_lpi_tr_tmr_val2 bits. + */ + err = lan88xx_TR_reg_set(phydev, 0x16A6, 0x071448); + if (err < 0) + pr_warn("Failed to Set Register[0x16A6]\n"); + + /* Get access to Channel b'10, Node b'1101, Register 0x12. + * Write 24-bit value 0x13132F to register. Setting + * slv_sigdet_timer_val1, slv_sigdet_timer_val2 bits. + */ + err = lan88xx_TR_reg_set(phydev, 0x16A4, 0x13132F); + if (err < 0) + pr_warn("Failed to Set Register[0x16A4]\n"); + + /* Get access to Channel b'10, Node b'1101, Register 0x14. + * Write 24-bit value 0x0 to register. Setting eee_3level_delay, + * eee_TrKf_freeze_delay bits. + */ + err = lan88xx_TR_reg_set(phydev, 0x16A8, 0x0); + if (err < 0) + pr_warn("Failed to Set Register[0x16A8]\n"); + + /* Get access to Channel b'01, Node b'1111, Register 0x34. + * Write 24-bit value 0x91B06C to register. Setting + * FastMseSearchThreshLong1000, FastMseSearchThreshShort1000, + * FastMseSearchUpdGain1000 bits. + */ + err = lan88xx_TR_reg_set(phydev, 0x0FE8, 0x91B06C); + if (err < 0) + pr_warn("Failed to Set Register[0x0FE8]\n"); + + /* Get access to Channel b'01, Node b'1111, Register 0x3E. + * Write 24-bit value 0xC0A028 to register. Setting + * FastMseKp2ThreshLong1000, FastMseKp2ThreshShort1000, + * FastMseKp2UpdGain1000, FastMseKp2ExitEn1000 bits. + */ + err = lan88xx_TR_reg_set(phydev, 0x0FFC, 0xC0A028); + if (err < 0) + pr_warn("Failed to Set Register[0x0FFC]\n"); + + /* Get access to Channel b'01, Node b'1111, Register 0x35. + * Write 24-bit value 0x041600 to register. Setting + * FastMseSearchPhShNum1000, FastMseSearchClksPerPh1000, + * FastMsePhChangeDelay1000 bits. + */ + err = lan88xx_TR_reg_set(phydev, 0x0FEA, 0x041600); + if (err < 0) + pr_warn("Failed to Set Register[0x0FEA]\n"); + + /* Get access to Channel b'10, Node b'1101, Register 0x03. + * Write 24-bit value 0x000004 to register. Setting TrFreeze bits. + */ + err = lan88xx_TR_reg_set(phydev, 0x1686, 0x000004); + if (err < 0) + pr_warn("Failed to Set Register[0x1686]\n"); +} + static int lan88xx_probe(struct phy_device *phydev) { struct device *dev = &phydev->mdio.dev; @@ -132,6 +287,25 @@ static void lan88xx_set_mdix(struct phy_ phy_write(phydev, LAN88XX_EXT_PAGE_ACCESS, LAN88XX_EXT_PAGE_SPACE_0); }
+static int lan88xx_config_init(struct phy_device *phydev) +{ + int val; + + genphy_config_init(phydev); + /*Zerodetect delay enable */ + val = phy_read_mmd(phydev, MDIO_MMD_PCS, + PHY_ARDENNES_MMD_DEV_3_PHY_CFG); + val |= PHY_ARDENNES_MMD_DEV_3_PHY_CFG_ZD_DLY_EN_; + + phy_write_mmd(phydev, MDIO_MMD_PCS, PHY_ARDENNES_MMD_DEV_3_PHY_CFG, + val); + + /* Config DSP registers */ + lan88xx_config_TR_regs(phydev); + + return 0; +} + static int lan88xx_config_aneg(struct phy_device *phydev) { lan88xx_set_mdix(phydev); @@ -151,7 +325,7 @@ static struct phy_driver microchip_phy_d .probe = lan88xx_probe, .remove = lan88xx_remove,
- .config_init = genphy_config_init, + .config_init = lan88xx_config_init, .config_aneg = lan88xx_config_aneg,
.ack_interrupt = lan88xx_phy_ack_interrupt, @@ -160,6 +334,8 @@ static struct phy_driver microchip_phy_d .suspend = lan88xx_suspend, .resume = genphy_resume, .set_wol = lan88xx_set_wol, + .read_page = lan88xx_read_page, + .write_page = lan88xx_write_page, } };
module_phy_driver(microchip_phy_driver); --- a/include/linux/microchipphy.h +++ b/include/linux/microchipphy.h @@ -70,4 +70,12 @@ #define LAN88XX_MMD3_CHIP_ID (32877) #define LAN88XX_MMD3_CHIP_REV (32878)
+/* DSP registers */ +#define PHY_ARDENNES_MMD_DEV_3_PHY_CFG (0x806A) +#define PHY_ARDENNES_MMD_DEV_3_PHY_CFG_ZD_DLY_EN_ (0x2000) +#define LAN88XX_EXT_PAGE_ACCESS_TR (0x52B5) +#define LAN88XX_EXT_PAGE_TR_CR 16 +#define LAN88XX_EXT_PAGE_TR_LOW_DATA 17 +#define LAN88XX_EXT_PAGE_TR_HIGH_DATA 18 + #endif /* _MICROCHIPPHY_H */
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Nathan Fontenot nfont@linux.vnet.ibm.com
[ Upstream commit ebc701b796a67a5785399dcbc83d90e3b5f1e02f ]
When attempting to change the driver parameters, such as the MTU value or number of queues, do not call netdev_notify_peers(). Doing so will deadlock on the rtnl_lock.
Signed-off-by: Nathan Fontenot nfont@linux.vnet.ibm.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/net/ethernet/ibm/ibmvnic.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
--- a/drivers/net/ethernet/ibm/ibmvnic.c +++ b/drivers/net/ethernet/ibm/ibmvnic.c @@ -1711,7 +1711,8 @@ static int do_reset(struct ibmvnic_adapt for (i = 0; i < adapter->req_rx_queues; i++) napi_schedule(&adapter->napi[i]);
- if (adapter->reset_reason != VNIC_RESET_FAILOVER) + if (adapter->reset_reason != VNIC_RESET_FAILOVER && + adapter->reset_reason != VNIC_RESET_CHANGE_PARAM) netdev_notify_peers(netdev);
netif_carrier_on(netdev);
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Jakub Kicinski jakub.kicinski@netronome.com
[ Upstream commit 5496295aefe86995e41398b0f76de601308fc3f5 ]
We currently allow signals to interrupt the wait for management FW commands. Exiting the wait should not cause trouble, the FW will just finish executing the command in the background and new commands will wait for the old one to finish.
However, this may not be what users expect (Ctrl-C not actually stopping the command). Moreover some systems routinely request link information with signals pending (Ubuntu 14.04 runs a landscape-sysinfo python tool from MOTD) worrying users with errors like these:
nfp 0000:04:00.0: nfp_nsp: Error -512 waiting for code 0x0007 to start nfp 0000:04:00.0: nfp: reading port table failed -512
Make the wait for management FW responses non-interruptible.
Fixes: 1a64821c6af7 ("nfp: add support for service processor access") Signed-off-by: Jakub Kicinski jakub.kicinski@netronome.com Reviewed-by: Dirk van der Merwe dirk.vandermerwe@netronome.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/net/ethernet/netronome/nfp/nfpcore/nfp_nsp.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-)
--- a/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_nsp.c +++ b/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_nsp.c @@ -281,8 +281,7 @@ nfp_nsp_wait_reg(struct nfp_cpp *cpp, u6 if ((*reg & mask) == val) return 0;
- if (msleep_interruptible(25)) - return -ERESTARTSYS; + msleep(25);
if (time_after(start_time, wait_until)) return -ETIMEDOUT;
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Pieter Jansen van Vuuren pieter.jansenvanvuuren@netronome.com
[ Upstream commit cf2cbadc20f5651c3dde9f5ac2ee52fb43aa4ddd ]
Introduce a second skb list for handling control messages and limit the number of allowed messages. Some control messages are considered more crucial than others, resulting in the need for a second skb list. By splitting the list into a separate high and low priority list we can ensure that messages on the high list get added to the head of the list that gets processed, this however has no functional impact. Previously there was no limit on the number of messages allowed on the queue, this could result in the queue growing boundlessly and eventually the host running out of memory.
Fixes: b985f870a5f0 ("nfp: process control messages in workqueue in flower app") Signed-off-by: Pieter Jansen van Vuuren pieter.jansenvanvuuren@netronome.com Reviewed-by: Jakub Kicinski jakub.kicinski@netronome.com Reviewed-by: Simon Horman simon.horman@netronome.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/net/ethernet/netronome/nfp/flower/cmsg.c | 38 ++++++++++++++++++++--- drivers/net/ethernet/netronome/nfp/flower/cmsg.h | 2 + drivers/net/ethernet/netronome/nfp/flower/main.c | 6 ++- drivers/net/ethernet/netronome/nfp/flower/main.h | 8 +++- 4 files changed, 46 insertions(+), 8 deletions(-)
--- a/drivers/net/ethernet/netronome/nfp/flower/cmsg.c +++ b/drivers/net/ethernet/netronome/nfp/flower/cmsg.c @@ -242,18 +242,49 @@ out:
void nfp_flower_cmsg_process_rx(struct work_struct *work) { + struct sk_buff_head cmsg_joined; struct nfp_flower_priv *priv; struct sk_buff *skb;
priv = container_of(work, struct nfp_flower_priv, cmsg_work); + skb_queue_head_init(&cmsg_joined);
- while ((skb = skb_dequeue(&priv->cmsg_skbs))) + spin_lock_bh(&priv->cmsg_skbs_high.lock); + skb_queue_splice_tail_init(&priv->cmsg_skbs_high, &cmsg_joined); + spin_unlock_bh(&priv->cmsg_skbs_high.lock); + + spin_lock_bh(&priv->cmsg_skbs_low.lock); + skb_queue_splice_tail_init(&priv->cmsg_skbs_low, &cmsg_joined); + spin_unlock_bh(&priv->cmsg_skbs_low.lock); + + while ((skb = __skb_dequeue(&cmsg_joined))) nfp_flower_cmsg_process_one_rx(priv->app, skb); }
-void nfp_flower_cmsg_rx(struct nfp_app *app, struct sk_buff *skb) +static void +nfp_flower_queue_ctl_msg(struct nfp_app *app, struct sk_buff *skb, int type) { struct nfp_flower_priv *priv = app->priv; + struct sk_buff_head *skb_head; + + if (type == NFP_FLOWER_CMSG_TYPE_PORT_REIFY || + type == NFP_FLOWER_CMSG_TYPE_PORT_MOD) + skb_head = &priv->cmsg_skbs_high; + else + skb_head = &priv->cmsg_skbs_low; + + if (skb_queue_len(skb_head) >= NFP_FLOWER_WORKQ_MAX_SKBS) { + nfp_flower_cmsg_warn(app, "Dropping queued control messages\n"); + dev_kfree_skb_any(skb); + return; + } + + skb_queue_tail(skb_head, skb); + schedule_work(&priv->cmsg_work); +} + +void nfp_flower_cmsg_rx(struct nfp_app *app, struct sk_buff *skb) +{ struct nfp_flower_cmsg_hdr *cmsg_hdr;
cmsg_hdr = nfp_flower_cmsg_get_hdr(skb); @@ -270,7 +301,6 @@ void nfp_flower_cmsg_rx(struct nfp_app * nfp_flower_rx_flow_stats(app, skb); dev_consume_skb_any(skb); } else { - skb_queue_tail(&priv->cmsg_skbs, skb); - schedule_work(&priv->cmsg_work); + nfp_flower_queue_ctl_msg(app, skb, cmsg_hdr->type); } } --- a/drivers/net/ethernet/netronome/nfp/flower/cmsg.h +++ b/drivers/net/ethernet/netronome/nfp/flower/cmsg.h @@ -98,6 +98,8 @@ #define NFP_FL_IPV4_TUNNEL_TYPE GENMASK(7, 4) #define NFP_FL_IPV4_PRE_TUN_INDEX GENMASK(2, 0)
+#define NFP_FLOWER_WORKQ_MAX_SKBS 30000 + #define nfp_flower_cmsg_warn(app, fmt, args...) \ do { \ if (net_ratelimit()) \ --- a/drivers/net/ethernet/netronome/nfp/flower/main.c +++ b/drivers/net/ethernet/netronome/nfp/flower/main.c @@ -517,7 +517,8 @@ static int nfp_flower_init(struct nfp_ap
app->priv = app_priv; app_priv->app = app; - skb_queue_head_init(&app_priv->cmsg_skbs); + skb_queue_head_init(&app_priv->cmsg_skbs_high); + skb_queue_head_init(&app_priv->cmsg_skbs_low); INIT_WORK(&app_priv->cmsg_work, nfp_flower_cmsg_process_rx); init_waitqueue_head(&app_priv->reify_wait_queue);
@@ -544,7 +545,8 @@ static void nfp_flower_clean(struct nfp_ { struct nfp_flower_priv *app_priv = app->priv;
- skb_queue_purge(&app_priv->cmsg_skbs); + skb_queue_purge(&app_priv->cmsg_skbs_high); + skb_queue_purge(&app_priv->cmsg_skbs_low); flush_work(&app_priv->cmsg_work);
nfp_flower_metadata_cleanup(app); --- a/drivers/net/ethernet/netronome/nfp/flower/main.h +++ b/drivers/net/ethernet/netronome/nfp/flower/main.h @@ -89,7 +89,10 @@ struct nfp_fl_stats_id { * @mask_table: Hash table used to store masks * @flow_table: Hash table used to store flower rules * @cmsg_work: Workqueue for control messages processing - * @cmsg_skbs: List of skbs for control message processing + * @cmsg_skbs_high: List of higher priority skbs for control message + * processing + * @cmsg_skbs_low: List of lower priority skbs for control message + * processing * @nfp_mac_off_list: List of MAC addresses to offload * @nfp_mac_index_list: List of unique 8-bit indexes for non NFP netdevs * @nfp_ipv4_off_list: List of IPv4 addresses to offload @@ -117,7 +120,8 @@ struct nfp_flower_priv { DECLARE_HASHTABLE(mask_table, NFP_FLOWER_MASK_HASH_BITS); DECLARE_HASHTABLE(flow_table, NFP_FLOWER_HASH_BITS); struct work_struct cmsg_work; - struct sk_buff_head cmsg_skbs; + struct sk_buff_head cmsg_skbs_high; + struct sk_buff_head cmsg_skbs_low; struct list_head nfp_mac_off_list; struct list_head nfp_mac_index_list; struct list_head nfp_ipv4_off_list;
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Amir Goldstein amir73il@gmail.com
[ Upstream commit 92183a42898dc400b89da35685d1814ac6acd3d8 ]
The ignore mask logic in send_to_group() does not match the logic in fanotify_should_send_event(). In the latter, a vfsmount mark ignore mask precedes an inode mark mask and in the former, it does not.
That difference may cause events to be sent to fanotify backend for no reason. Fix the logic in send_to_group() to match that of fanotify_should_send_event().
Signed-off-by: Amir Goldstein amir73il@gmail.com Signed-off-by: Jan Kara jack@suse.cz Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- fs/notify/fsnotify.c | 25 +++++++++++-------------- 1 file changed, 11 insertions(+), 14 deletions(-)
--- a/fs/notify/fsnotify.c +++ b/fs/notify/fsnotify.c @@ -192,8 +192,9 @@ static int send_to_group(struct inode *t struct fsnotify_iter_info *iter_info) { struct fsnotify_group *group = NULL; - __u32 inode_test_mask = 0; - __u32 vfsmount_test_mask = 0; + __u32 test_mask = (mask & ~FS_EVENT_ON_CHILD); + __u32 marks_mask = 0; + __u32 marks_ignored_mask = 0;
if (unlikely(!inode_mark && !vfsmount_mark)) { BUG(); @@ -213,29 +214,25 @@ static int send_to_group(struct inode *t /* does the inode mark tell us to do something? */ if (inode_mark) { group = inode_mark->group; - inode_test_mask = (mask & ~FS_EVENT_ON_CHILD); - inode_test_mask &= inode_mark->mask; - inode_test_mask &= ~inode_mark->ignored_mask; + marks_mask |= inode_mark->mask; + marks_ignored_mask |= inode_mark->ignored_mask; }
/* does the vfsmount_mark tell us to do something? */ if (vfsmount_mark) { - vfsmount_test_mask = (mask & ~FS_EVENT_ON_CHILD); group = vfsmount_mark->group; - vfsmount_test_mask &= vfsmount_mark->mask; - vfsmount_test_mask &= ~vfsmount_mark->ignored_mask; - if (inode_mark) - vfsmount_test_mask &= ~inode_mark->ignored_mask; + marks_mask |= vfsmount_mark->mask; + marks_ignored_mask |= vfsmount_mark->ignored_mask; }
pr_debug("%s: group=%p to_tell=%p mask=%x inode_mark=%p" - " inode_test_mask=%x vfsmount_mark=%p vfsmount_test_mask=%x" + " vfsmount_mark=%p marks_mask=%x marks_ignored_mask=%x" " data=%p data_is=%d cookie=%d\n", - __func__, group, to_tell, mask, inode_mark, - inode_test_mask, vfsmount_mark, vfsmount_test_mask, data, + __func__, group, to_tell, mask, inode_mark, vfsmount_mark, + marks_mask, marks_ignored_mask, data, data_is, cookie);
- if (!inode_test_mask && !vfsmount_test_mask) + if (!(test_mask & marks_mask & ~marks_ignored_mask)) return 0;
return group->ops->handle_event(group, to_tell, inode_mark,
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Sinan Kaya okaya@codeaurora.org
[ Upstream commit a1cc7034e33d12dc17d13fbcd7d597d552889097 ]
While a barrier is present in the writeX() functions before the register write, a similar barrier is missing in the readX() functions after the register read. This could allow memory accesses following readX() to observe stale data.
Signed-off-by: Sinan Kaya okaya@codeaurora.org Reported-by: Arnd Bergmann arnd@arndb.de Cc: Ralf Baechle ralf@linux-mips.org Cc: Paul Burton paul.burton@mips.com Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/19069/ [jhogan@kernel.org: Tidy commit message] Signed-off-by: James Hogan jhogan@kernel.org Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/mips/include/asm/io.h | 2 ++ 1 file changed, 2 insertions(+)
--- a/arch/mips/include/asm/io.h +++ b/arch/mips/include/asm/io.h @@ -377,6 +377,8 @@ static inline type pfx##read##bwlq(const BUG(); \ } \ \ + /* prevent prefetching of coherent DMA data prematurely */ \ + rmb(); \ return pfx##ioswab##bwlq(__mem, __val); \ }
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Martin Schwidefsky schwidefsky@de.ibm.com
[ Upstream commit 760dd0eeaec1689430243ead14e5a429613d8c52 ]
The module exit function of the smsgiucv module uses the incorrect CP command to disable SMSG messages. The correct command is "SET SMSG OFF". Use it.
Signed-off-by: Martin Schwidefsky schwidefsky@de.ibm.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/s390/net/smsgiucv.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/s390/net/smsgiucv.c +++ b/drivers/s390/net/smsgiucv.c @@ -176,7 +176,7 @@ static struct device_driver smsg_driver
static void __exit smsg_exit(void) { - cpcmd("SET SMSG IUCV", NULL, 0, NULL); + cpcmd("SET SMSG OFF", NULL, 0, NULL); device_unregister(smsg_dev); iucv_unregister(&smsg_handler, 1); driver_unregister(&smsg_driver);
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Chengguang Xu cgxu519@gmx.com
[ Upstream commit 4f34a5130a471f32f2fe7750769ab4057dc3eaa0 ]
When specifying string type mount option (e.g., iocharset) several times in a mount, current option parsing may cause memory leak. Hence, call kfree for previous one in this case. Meanwhile, check memory allocation result for it.
Signed-off-by: Chengguang Xu cgxu519@gmx.com Signed-off-by: Jan Kara jack@suse.cz Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- fs/isofs/inode.c | 3 +++ 1 file changed, 3 insertions(+)
--- a/fs/isofs/inode.c +++ b/fs/isofs/inode.c @@ -394,7 +394,10 @@ static int parse_options(char *options, break; #ifdef CONFIG_JOLIET case Opt_iocharset: + kfree(popt->iocharset); popt->iocharset = match_strdup(&args[0]); + if (!popt->iocharset) + return 0; break; #endif case Opt_map_a:
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Matt Redfearn matt.redfearn@mips.com
[ Upstream commit 2c2bf522ed8cbfaac666f7dc65cfd38de2b89f0f ]
dtc recently (v1.4.4-8-g756ffc4f52f6) added PCI bus checks. Fix the warnings now emitted:
arch/mips/boot/dts/img/boston.dtb: Warning (pci_bridge): /pci@10000000: missing bus-range for PCI bridge arch/mips/boot/dts/img/boston.dtb: Warning (pci_bridge): /pci@12000000: missing bus-range for PCI bridge arch/mips/boot/dts/img/boston.dtb: Warning (pci_bridge): /pci@14000000: missing bus-range for PCI bridge
Signed-off-by: Matt Redfearn matt.redfearn@mips.com Cc: Ralf Baechle ralf@linux-mips.org Cc: Paul Burton paul.burton@mips.com Cc: Rob Herring robh+dt@kernel.org Cc: Mark Rutland mark.rutland@arm.com Cc: linux-mips@linux-mips.org Cc: devicetree@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/19070/ Signed-off-by: James Hogan jhogan@kernel.org Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/mips/boot/dts/img/boston.dts | 6 ++++++ 1 file changed, 6 insertions(+)
--- a/arch/mips/boot/dts/img/boston.dts +++ b/arch/mips/boot/dts/img/boston.dts @@ -51,6 +51,8 @@ ranges = <0x02000000 0 0x40000000 0x40000000 0 0x40000000>;
+ bus-range = <0x00 0xff>; + interrupt-map-mask = <0 0 0 7>; interrupt-map = <0 0 0 1 &pci0_intc 1>, <0 0 0 2 &pci0_intc 2>, @@ -79,6 +81,8 @@ ranges = <0x02000000 0 0x20000000 0x20000000 0 0x20000000>;
+ bus-range = <0x00 0xff>; + interrupt-map-mask = <0 0 0 7>; interrupt-map = <0 0 0 1 &pci1_intc 1>, <0 0 0 2 &pci1_intc 2>, @@ -107,6 +111,8 @@ ranges = <0x02000000 0 0x16000000 0x16000000 0 0x100000>;
+ bus-range = <0x00 0xff>; + interrupt-map-mask = <0 0 0 7>; interrupt-map = <0 0 0 1 &pci2_intc 1>, <0 0 0 2 &pci2_intc 2>,
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Vladimir Zapolskiy vladimir_zapolskiy@mentor.com
[ Upstream commit 10b4640833e95eeacaef8060bc1b35e636df3218 ]
The change fixes a bit field overflow which allows to write to higher bits while calculating SPI transfer clock and setting BRPS and BRDV bit fields, the problem is reproduced if 'parent_rate' to 'spi_hz' ratio is greater than 1024, for instance
p->min_div = 2, MSO rate = 33333333, SPI device rate = 10000
results in
k = 5, i.e. BRDV = 0b100 or 1/32 prescaler output, BRPS = 105, TSCR value = 0x6804, thus MSSEL and MSIMM bit fields are non-zero.
Fixes: 65d5665bb260 ("spi: sh-msiof: Update calculation of frequency dividing") Signed-off-by: Vladimir Zapolskiy vladimir_zapolskiy@mentor.com Signed-off-by: Mark Brown broonie@kernel.org Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/spi/spi-sh-msiof.c | 1 + 1 file changed, 1 insertion(+)
--- a/drivers/spi/spi-sh-msiof.c +++ b/drivers/spi/spi-sh-msiof.c @@ -283,6 +283,7 @@ static void sh_msiof_spi_set_clk_regs(st }
k = min_t(int, k, ARRAY_SIZE(sh_msiof_spi_div_table) - 1); + brps = min_t(int, brps, 32);
scr = sh_msiof_spi_div_table[k].brdv | SCR_BRPS(brps); sh_msiof_write(p, TSCR, scr);
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Lukasz Majewski lukma@denx.de
[ Upstream commit 99bf8f27f3f94d2a37291354b8dc83f13728f75f ]
The 'kiebackpeter' entry has been added to vendor-prefixes.txt to indicate products from Kieback & Peter GmbH.
Signed-off-by: Lukasz Majewski lukma@denx.de Signed-off-by: Rob Herring robh@kernel.org Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- Documentation/devicetree/bindings/vendor-prefixes.txt | 1 + 1 file changed, 1 insertion(+)
--- a/Documentation/devicetree/bindings/vendor-prefixes.txt +++ b/Documentation/devicetree/bindings/vendor-prefixes.txt @@ -181,6 +181,7 @@ karo Ka-Ro electronics GmbH keithkoep Keith & Koep GmbH keymile Keymile GmbH khadas Khadas +kiebackpeter Kieback & Peter GmbH kinetic Kinetic Technologies kingnovel Kingnovel Technology Co., Ltd. kosagi Sutajio Ko-Usagi PTE Ltd.
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Matheus Castello matheus@castello.eng.br
[ Upstream commit b614e905a0bc8fc5d4fa72665ac26ae00c874a4e ]
Bindings describe hardware, not drivers. Use reference to hardware Allwinner A1X Pin Controller instead driver.
Signed-off-by: Matheus Castello matheus@castello.eng.br Signed-off-by: Rob Herring robh@kernel.org Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- Documentation/devicetree/bindings/pinctrl/allwinner,sunxi-pinctrl.txt | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-)
--- a/Documentation/devicetree/bindings/pinctrl/allwinner,sunxi-pinctrl.txt +++ b/Documentation/devicetree/bindings/pinctrl/allwinner,sunxi-pinctrl.txt @@ -55,9 +55,9 @@ pins it needs, and how they should be co configuration, drive strength and pullups. If one of these options is not set, its actual value will be unspecified.
-This driver supports the generic pin multiplexing and configuration -bindings. For details on each properties, you can refer to -./pinctrl-bindings.txt. +Allwinner A1X Pin Controller supports the generic pin multiplexing and +configuration bindings. For details on each properties, you can refer to + ./pinctrl-bindings.txt.
Required sub-node properties: - pins
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Jacopo Mondi jacopo+renesas@jmondi.org
[ Upstream commit 1a862488729a6ea9cfd285d2c90f8738949ae7d2 ]
Add documentation for r8a77965 compatible string to renesas ravb device tree bindings documentation.
Signed-off-by: Jacopo Mondi jacopo+renesas@jmondi.org Reviewed-by: Geert Uytterhoeven geert+renesas@glider.be Reviewed-by: Simon Horman horms+renesas@verge.net.au Acked-by: Sergei Shtylyov sergei.shtylyov@cogentembedded.com Signed-off-by: Rob Herring robh@kernel.org Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- Documentation/devicetree/bindings/net/renesas,ravb.txt | 1 + 1 file changed, 1 insertion(+)
--- a/Documentation/devicetree/bindings/net/renesas,ravb.txt +++ b/Documentation/devicetree/bindings/net/renesas,ravb.txt @@ -17,6 +17,7 @@ Required properties:
- "renesas,etheravb-r8a7795" for the R8A7795 SoC. - "renesas,etheravb-r8a7796" for the R8A7796 SoC. + - "renesas,etheravb-r8a77965" for the R8A77965 SoC. - "renesas,etheravb-r8a77970" for the R8A77970 SoC. - "renesas,etheravb-r8a77980" for the R8A77980 SoC. - "renesas,etheravb-r8a77995" for the R8A77995 SoC.
On 6/18/2018 11:10 AM, Greg Kroah-Hartman wrote:
4.16-stable review patch. If anyone has any objections, please let me know.
From: Jacopo Mondi jacopo+renesas@jmondi.org
[ Upstream commit 1a862488729a6ea9cfd285d2c90f8738949ae7d2 ]
Add documentation for r8a77965 compatible string to renesas ravb device tree bindings documentation.
Signed-off-by: Jacopo Mondi jacopo+renesas@jmondi.org Reviewed-by: Geert Uytterhoeven geert+renesas@glider.be Reviewed-by: Simon Horman horms+renesas@verge.net.au Acked-by: Sergei Shtylyov sergei.shtylyov@cogentembedded.com Signed-off-by: Rob Herring robh@kernel.org Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
Documentation/devicetree/bindings/net/renesas,ravb.txt | 1 + 1 file changed, 1 insertion(+)
--- a/Documentation/devicetree/bindings/net/renesas,ravb.txt +++ b/Documentation/devicetree/bindings/net/renesas,ravb.txt @@ -17,6 +17,7 @@ Required properties: - "renesas,etheravb-r8a7795" for the R8A7795 SoC. - "renesas,etheravb-r8a7796" for the R8A7796 SoC.
- "renesas,etheravb-r8a77965" for the R8A77965 SoC. - "renesas,etheravb-r8a77970" for the R8A77970 SoC. - "renesas,etheravb-r8a77980" for the R8A77980 SoC. - "renesas,etheravb-r8a77995" for the R8A77995 SoC.
Seeing the bindings update in -stable for the 1st time, and I highly doubt that it's necessary here.
MBR, Sergei
Hi Sergei,
On Mon, Jun 18, 2018 at 10:46 AM Sergei Shtylyov sergei.shtylyov@cogentembedded.com wrote:
On 6/18/2018 11:10 AM, Greg Kroah-Hartman wrote:
4.16-stable review patch. If anyone has any objections, please let me know.
From: Jacopo Mondi jacopo+renesas@jmondi.org
[ Upstream commit 1a862488729a6ea9cfd285d2c90f8738949ae7d2 ]
Add documentation for r8a77965 compatible string to renesas ravb device tree bindings documentation.
Signed-off-by: Jacopo Mondi jacopo+renesas@jmondi.org Reviewed-by: Geert Uytterhoeven geert+renesas@glider.be Reviewed-by: Simon Horman horms+renesas@verge.net.au Acked-by: Sergei Shtylyov sergei.shtylyov@cogentembedded.com Signed-off-by: Rob Herring robh@kernel.org Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
Documentation/devicetree/bindings/net/renesas,ravb.txt | 1 + 1 file changed, 1 insertion(+)
--- a/Documentation/devicetree/bindings/net/renesas,ravb.txt +++ b/Documentation/devicetree/bindings/net/renesas,ravb.txt @@ -17,6 +17,7 @@ Required properties:
- "renesas,etheravb-r8a7795" for the R8A7795 SoC. - "renesas,etheravb-r8a7796" for the R8A7796 SoC.
- "renesas,etheravb-r8a77965" for the R8A77965 SoC. - "renesas,etheravb-r8a77970" for the R8A77970 SoC. - "renesas,etheravb-r8a77980" for the R8A77980 SoC. - "renesas,etheravb-r8a77995" for the R8A77995 SoC.
Seeing the bindings update in -stable for the 1st time, and I highly doubt
that it's necessary here.
They don't hurt (as long as no _separate_ driver update is needed!), hence I don't object to backporting in-se.
But their usefulness can be doubted, as they don't change the behavior of the kernel, unlikely adding e.g. new PCI IDs, or extending drivers with new compatible values. It's purely a documentation update.
Gr{oetje,eeting}s,
Geert
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Jacopo Mondi jacopo+renesas@jmondi.org
[ Upstream commit 7de5b7e5f6a67c285b86d1478e8e150929c93482 ]
Add documentation for r8a77965 compatible string to Renesas sci-serial device tree bindings documentation.
Signed-off-by: Jacopo Mondi jacopo+renesas@jmondi.org Reviewed-by: Geert Uytterhoeven geert+renesas@glider.be Signed-off-by: Rob Herring robh@kernel.org Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- Documentation/devicetree/bindings/serial/renesas,sci-serial.txt | 2 ++ 1 file changed, 2 insertions(+)
--- a/Documentation/devicetree/bindings/serial/renesas,sci-serial.txt +++ b/Documentation/devicetree/bindings/serial/renesas,sci-serial.txt @@ -41,6 +41,8 @@ Required properties: - "renesas,hscif-r8a7795" for R8A7795 (R-Car H3) HSCIF compatible UART. - "renesas,scif-r8a7796" for R8A7796 (R-Car M3-W) SCIF compatible UART. - "renesas,hscif-r8a7796" for R8A7796 (R-Car M3-W) HSCIF compatible UART. + - "renesas,scif-r8a77965" for R8A77965 (R-Car M3-N) SCIF compatible UART. + - "renesas,hscif-r8a77965" for R8A77965 (R-Car M3-N) HSCIF compatible UART. - "renesas,scif-r8a77970" for R8A77970 (R-Car V3M) SCIF compatible UART. - "renesas,hscif-r8a77970" for R8A77970 (R-Car V3M) HSCIF compatible UART. - "renesas,scif-r8a77995" for R8A77995 (R-Car D3) SCIF compatible UART.
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Jacopo Mondi jacopo+renesas@jmondi.org
[ Upstream commit b89bc283286b105e50aab9ab35992c0237ac77d8 ]
Add documentation for r8a77965 compatible string to rcar-dmac device tree bindings documentation.
Signed-off-by: Jacopo Mondi jacopo+renesas@jmondi.org Reviewed-by: Geert Uytterhoeven geert+renesas@glider.be Reviewed-by: Simon Horman horms+renesas@verge.net.au Signed-off-by: Rob Herring robh@kernel.org Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- Documentation/devicetree/bindings/dma/renesas,rcar-dmac.txt | 1 + 1 file changed, 1 insertion(+)
--- a/Documentation/devicetree/bindings/dma/renesas,rcar-dmac.txt +++ b/Documentation/devicetree/bindings/dma/renesas,rcar-dmac.txt @@ -25,6 +25,7 @@ Required Properties: - "renesas,dmac-r8a7794" (R-Car E2) - "renesas,dmac-r8a7795" (R-Car H3) - "renesas,dmac-r8a7796" (R-Car M3-W) + - "renesas,dmac-r8a77965" (R-Car M3-N) - "renesas,dmac-r8a77970" (R-Car V3M)
- reg: base address and length of the registers block for the DMAC
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Paolo Bonzini pbonzini@redhat.com
[ Upstream commit dd259935e4eec844dc3e5b8a7cd951cd658b4fb6 ]
This is not specific to Intel/AMD anymore. The TSC offset is available in vcpu->arch.tsc_offset.
Signed-off-by: Paolo Bonzini pbonzini@redhat.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/x86/kvm/svm.c | 9 --------- arch/x86/kvm/vmx.c | 20 -------------------- arch/x86/kvm/x86.c | 6 ++++++ 3 files changed, 6 insertions(+), 29 deletions(-)
--- a/arch/x86/kvm/svm.c +++ b/arch/x86/kvm/svm.c @@ -3915,12 +3915,6 @@ static int svm_get_msr(struct kvm_vcpu * struct vcpu_svm *svm = to_svm(vcpu);
switch (msr_info->index) { - case MSR_IA32_TSC: { - msr_info->data = svm->vmcb->control.tsc_offset + - kvm_scale_tsc(vcpu, rdtsc()); - - break; - } case MSR_STAR: msr_info->data = svm->vmcb->save.star; break; @@ -4080,9 +4074,6 @@ static int svm_set_msr(struct kvm_vcpu * svm->vmcb->save.g_pat = data; mark_dirty(svm->vmcb, VMCB_NPT); break; - case MSR_IA32_TSC: - kvm_write_tsc(vcpu, msr); - break; case MSR_IA32_SPEC_CTRL: if (!msr->host_initiated && !guest_cpuid_has(vcpu, X86_FEATURE_AMD_IBRS)) --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -2650,20 +2650,6 @@ static u64 vmx_read_l1_tsc_offset(struct }
/* - * reads and returns guest's timestamp counter "register" - * guest_tsc = (host_tsc * tsc multiplier) >> 48 + tsc_offset - * -- Intel TSC Scaling for Virtualization White Paper, sec 1.3 - */ -static u64 guest_read_tsc(struct kvm_vcpu *vcpu) -{ - u64 host_tsc, tsc_offset; - - host_tsc = rdtsc(); - tsc_offset = vmcs_read64(TSC_OFFSET); - return kvm_scale_tsc(vcpu, host_tsc) + tsc_offset; -} - -/* * writes 'offset' into guest's timestamp counter offset register */ static void vmx_write_tsc_offset(struct kvm_vcpu *vcpu, u64 offset) @@ -3283,9 +3269,6 @@ static int vmx_get_msr(struct kvm_vcpu * #endif case MSR_EFER: return kvm_get_msr_common(vcpu, msr_info); - case MSR_IA32_TSC: - msr_info->data = guest_read_tsc(vcpu); - break; case MSR_IA32_SPEC_CTRL: if (!msr_info->host_initiated && !guest_cpuid_has(vcpu, X86_FEATURE_SPEC_CTRL)) @@ -3403,9 +3386,6 @@ static int vmx_set_msr(struct kvm_vcpu * return 1; vmcs_write64(GUEST_BNDCFGS, data); break; - case MSR_IA32_TSC: - kvm_write_tsc(vcpu, msr_info); - break; case MSR_IA32_SPEC_CTRL: if (!msr_info->host_initiated && !guest_cpuid_has(vcpu, X86_FEATURE_SPEC_CTRL)) --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -2333,6 +2333,9 @@ int kvm_set_msr_common(struct kvm_vcpu * return 1; vcpu->arch.smbase = data; break; + case MSR_IA32_TSC: + kvm_write_tsc(vcpu, msr_info); + break; case MSR_SMI_COUNT: if (!msr_info->host_initiated) return 1; @@ -2572,6 +2575,9 @@ int kvm_get_msr_common(struct kvm_vcpu * case MSR_IA32_UCODE_REV: msr_info->data = vcpu->arch.microcode_version; break; + case MSR_IA32_TSC: + msr_info->data = kvm_scale_tsc(vcpu, rdtsc()) + vcpu->arch.tsc_offset; + break; case MSR_MTRRcap: case 0x200 ... 0x2ff: return kvm_mtrr_get_msr(vcpu, msr_info->index, &msr_info->data);
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Jerome Brunet jbrunet@baylibre.com
[ Upstream commit 4ad69b80e886a845f56ce0a3d10211208693d92b ]
CLK_MUX_ROUND_CLOSEST is part of the clk_mux documentation but clk_mux directly calls __clk_mux_determine_rate(), which overrides the flag. As result, if clk_mux is instantiated with CLK_MUX_ROUND_CLOSEST, the flag will be ignored and the clock rounded down.
To solve this, this patch expose clk_mux_determine_rate_flags() in the clk-provider API and uses it in the determine_rate() callback of clk_mux.
Fixes: 15a02c1f6dd7 ("clk: Add __clk_mux_determine_rate_closest") Signed-off-by: Jerome Brunet jbrunet@baylibre.com Signed-off-by: Stephen Boyd sboyd@kernel.org Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/clk/clk-mux.c | 10 +++++++++- drivers/clk/clk.c | 7 ++++--- include/linux/clk-provider.h | 3 +++ 3 files changed, 16 insertions(+), 4 deletions(-)
--- a/drivers/clk/clk-mux.c +++ b/drivers/clk/clk-mux.c @@ -101,10 +101,18 @@ static int clk_mux_set_parent(struct clk return 0; }
+static int clk_mux_determine_rate(struct clk_hw *hw, + struct clk_rate_request *req) +{ + struct clk_mux *mux = to_clk_mux(hw); + + return clk_mux_determine_rate_flags(hw, req, mux->flags); +} + const struct clk_ops clk_mux_ops = { .get_parent = clk_mux_get_parent, .set_parent = clk_mux_set_parent, - .determine_rate = __clk_mux_determine_rate, + .determine_rate = clk_mux_determine_rate, }; EXPORT_SYMBOL_GPL(clk_mux_ops);
--- a/drivers/clk/clk.c +++ b/drivers/clk/clk.c @@ -426,9 +426,9 @@ static bool mux_is_better_rate(unsigned return now <= rate && now > best; }
-static int -clk_mux_determine_rate_flags(struct clk_hw *hw, struct clk_rate_request *req, - unsigned long flags) +int clk_mux_determine_rate_flags(struct clk_hw *hw, + struct clk_rate_request *req, + unsigned long flags) { struct clk_core *core = hw->core, *parent, *best_parent = NULL; int i, num_parents, ret; @@ -488,6 +488,7 @@ out:
return 0; } +EXPORT_SYMBOL_GPL(clk_mux_determine_rate_flags);
struct clk *__clk_lookup(const char *name) { --- a/include/linux/clk-provider.h +++ b/include/linux/clk-provider.h @@ -755,6 +755,9 @@ int __clk_mux_determine_rate(struct clk_ int __clk_determine_rate(struct clk_hw *core, struct clk_rate_request *req); int __clk_mux_determine_rate_closest(struct clk_hw *hw, struct clk_rate_request *req); +int clk_mux_determine_rate_flags(struct clk_hw *hw, + struct clk_rate_request *req, + unsigned long flags); void clk_hw_reparent(struct clk_hw *hw, struct clk_hw *new_parent); void clk_hw_set_rate_range(struct clk_hw *hw, unsigned long min_rate, unsigned long max_rate);
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: "oder_chiou@realtek.com" oder_chiou@realtek.com
[ Upstream commit 5ef5ac8de125fe6b4b23293bee026ca7ea1529b9 ]
The patch adds the missing register in the readable table.
Signed-off-by: Oder Chiou oder_chiou@realtek.com Signed-off-by: Mark Brown broonie@kernel.org Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- sound/soc/codecs/rt5514.c | 3 +++ 1 file changed, 3 insertions(+)
--- a/sound/soc/codecs/rt5514.c +++ b/sound/soc/codecs/rt5514.c @@ -89,6 +89,7 @@ static const struct reg_default rt5514_r {RT5514_PLL3_CALIB_CTRL5, 0x40220012}, {RT5514_DELAY_BUF_CTRL1, 0x7fff006a}, {RT5514_DELAY_BUF_CTRL3, 0x00000000}, + {RT5514_ASRC_IN_CTRL1, 0x00000003}, {RT5514_DOWNFILTER0_CTRL1, 0x00020c2f}, {RT5514_DOWNFILTER0_CTRL2, 0x00020c2f}, {RT5514_DOWNFILTER0_CTRL3, 0x10000362}, @@ -181,6 +182,7 @@ static bool rt5514_readable_register(str case RT5514_PLL3_CALIB_CTRL5: case RT5514_DELAY_BUF_CTRL1: case RT5514_DELAY_BUF_CTRL3: + case RT5514_ASRC_IN_CTRL1: case RT5514_DOWNFILTER0_CTRL1: case RT5514_DOWNFILTER0_CTRL2: case RT5514_DOWNFILTER0_CTRL3: @@ -238,6 +240,7 @@ static bool rt5514_i2c_readable_register case RT5514_DSP_MAPPING | RT5514_PLL3_CALIB_CTRL5: case RT5514_DSP_MAPPING | RT5514_DELAY_BUF_CTRL1: case RT5514_DSP_MAPPING | RT5514_DELAY_BUF_CTRL3: + case RT5514_DSP_MAPPING | RT5514_ASRC_IN_CTRL1: case RT5514_DSP_MAPPING | RT5514_DOWNFILTER0_CTRL1: case RT5514_DSP_MAPPING | RT5514_DOWNFILTER0_CTRL2: case RT5514_DSP_MAPPING | RT5514_DOWNFILTER0_CTRL3:
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Tony Lindgren tony@atomide.com
[ Upstream commit bc8a3ef1940c9a6dfa316b31e063fdd4fbab0add ]
The size of these modules is 0x2000, not 0x3000. The extra 0x1000 after 0x2000 is for the interconnect target agent which is a separate device.
Fixes: 7415b0b4c645 ("ARM: dts: omap4: add minimal l4 bus layout with control module support") Cc: Tero Kristo t-kristo@ti.com Signed-off-by: Tony Lindgren tony@atomide.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/arm/boot/dts/omap4.dtsi | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-)
--- a/arch/arm/boot/dts/omap4.dtsi +++ b/arch/arm/boot/dts/omap4.dtsi @@ -163,10 +163,10 @@
cm2: cm2@8000 { compatible = "ti,omap4-cm2", "simple-bus"; - reg = <0x8000 0x3000>; + reg = <0x8000 0x2000>; #address-cells = <1>; #size-cells = <1>; - ranges = <0 0x8000 0x3000>; + ranges = <0 0x8000 0x2000>;
cm2_clocks: clocks { #address-cells = <1>; @@ -250,11 +250,11 @@
prm: prm@6000 { compatible = "ti,omap4-prm"; - reg = <0x6000 0x3000>; + reg = <0x6000 0x2000>; interrupts = <GIC_SPI 11 IRQ_TYPE_LEVEL_HIGH>; #address-cells = <1>; #size-cells = <1>; - ranges = <0 0x6000 0x3000>; + ranges = <0 0x6000 0x2000>;
prm_clocks: clocks { #address-cells = <1>;
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Tyler Hicks tyhicks@canonical.com
[ Upstream commit e86281e700cca8a773f9a572fa406adf2784ba5c ]
Both ecryptfs_filldir() and ecryptfs_readlink_lower() use ecryptfs_decode_and_decrypt_filename() to translate lower filenames to upper filenames. The function correctly passes up lower filenames, unchanged, when filename encryption isn't in use. However, it was also passing up lower filenames when the filename wasn't encrypted or when decryption failed. Since 88ae4ab9802e, eCryptfs refuses to lookup lower plaintext names when filename encryption is enabled so this resulted in a situation where userspace would see lower plaintext filenames in calls to getdents(2) but then not be able to lookup those filenames.
An example of this can be seen when enabling filename encryption on an eCryptfs mount at the root directory of an Ext4 filesystem:
$ ls -1i /lower 12 ECRYPTFS_FNEK_ENCRYPTED.FWYZD8TcW.5FV-TKTEYOHsheiHX9a-w.NURCCYIMjI8pn5BDB9-h3fXwrE-- 11 lost+found $ ls -1i /upper ls: cannot access '/upper/lost+found': No such file or directory ? lost+found 12 test
With this change, the lower lost+found dentry is ignored:
$ ls -1i /lower 12 ECRYPTFS_FNEK_ENCRYPTED.FWYZD8TcW.5FV-TKTEYOHsheiHX9a-w.NURCCYIMjI8pn5BDB9-h3fXwrE-- 11 lost+found $ ls -1i /upper 12 test
Additionally, some potentially noisy error/info messages in the related code paths are turned into debug messages so that the logs can't be easily filled.
Fixes: 88ae4ab9802e ("ecryptfs_lookup(): try either only encrypted or plaintext name") Reported-by: Guenter Roeck linux@roeck-us.net Cc: Al Viro viro@zeniv.linux.org.uk Signed-off-by: Tyler Hicks tyhicks@canonical.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- fs/ecryptfs/crypto.c | 41 ++++++++++++++++++++++++++++------------- fs/ecryptfs/file.c | 21 ++++++++++++++++----- 2 files changed, 44 insertions(+), 18 deletions(-)
--- a/fs/ecryptfs/crypto.c +++ b/fs/ecryptfs/crypto.c @@ -1997,6 +1997,16 @@ out: return rc; }
+static bool is_dot_dotdot(const char *name, size_t name_size) +{ + if (name_size == 1 && name[0] == '.') + return true; + else if (name_size == 2 && name[0] == '.' && name[1] == '.') + return true; + + return false; +} + /** * ecryptfs_decode_and_decrypt_filename - converts the encoded cipher text name to decoded plaintext * @plaintext_name: The plaintext name @@ -2021,13 +2031,21 @@ int ecryptfs_decode_and_decrypt_filename size_t packet_size; int rc = 0;
- if ((mount_crypt_stat->flags & ECRYPTFS_GLOBAL_ENCRYPT_FILENAMES) - && !(mount_crypt_stat->flags & ECRYPTFS_ENCRYPTED_VIEW_ENABLED) - && (name_size > ECRYPTFS_FNEK_ENCRYPTED_FILENAME_PREFIX_SIZE) - && (strncmp(name, ECRYPTFS_FNEK_ENCRYPTED_FILENAME_PREFIX, - ECRYPTFS_FNEK_ENCRYPTED_FILENAME_PREFIX_SIZE) == 0)) { - const char *orig_name = name; - size_t orig_name_size = name_size; + if ((mount_crypt_stat->flags & ECRYPTFS_GLOBAL_ENCRYPT_FILENAMES) && + !(mount_crypt_stat->flags & ECRYPTFS_ENCRYPTED_VIEW_ENABLED)) { + if (is_dot_dotdot(name, name_size)) { + rc = ecryptfs_copy_filename(plaintext_name, + plaintext_name_size, + name, name_size); + goto out; + } + + if (name_size <= ECRYPTFS_FNEK_ENCRYPTED_FILENAME_PREFIX_SIZE || + strncmp(name, ECRYPTFS_FNEK_ENCRYPTED_FILENAME_PREFIX, + ECRYPTFS_FNEK_ENCRYPTED_FILENAME_PREFIX_SIZE)) { + rc = -EINVAL; + goto out; + }
name += ECRYPTFS_FNEK_ENCRYPTED_FILENAME_PREFIX_SIZE; name_size -= ECRYPTFS_FNEK_ENCRYPTED_FILENAME_PREFIX_SIZE; @@ -2047,12 +2065,9 @@ int ecryptfs_decode_and_decrypt_filename decoded_name, decoded_name_size); if (rc) { - printk(KERN_INFO "%s: Could not parse tag 70 packet " - "from filename; copying through filename " - "as-is\n", __func__); - rc = ecryptfs_copy_filename(plaintext_name, - plaintext_name_size, - orig_name, orig_name_size); + ecryptfs_printk(KERN_DEBUG, + "%s: Could not parse tag 70 packet from filename\n", + __func__); goto out_free; } } else { --- a/fs/ecryptfs/file.c +++ b/fs/ecryptfs/file.c @@ -82,17 +82,28 @@ ecryptfs_filldir(struct dir_context *ctx buf->sb, lower_name, lower_namelen); if (rc) { - printk(KERN_ERR "%s: Error attempting to decode and decrypt " - "filename [%s]; rc = [%d]\n", __func__, lower_name, - rc); - goto out; + if (rc != -EINVAL) { + ecryptfs_printk(KERN_DEBUG, + "%s: Error attempting to decode and decrypt filename [%s]; rc = [%d]\n", + __func__, lower_name, rc); + return rc; + } + + /* Mask -EINVAL errors as these are most likely due a plaintext + * filename present in the lower filesystem despite filename + * encryption being enabled. One unavoidable example would be + * the "lost+found" dentry in the root directory of an Ext4 + * filesystem. + */ + return 0; } + buf->caller->pos = buf->ctx.pos; rc = !dir_emit(buf->caller, name, name_size, ino, d_type); kfree(name); if (!rc) buf->entries_written++; -out: + return rc; }
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Florian Fainelli f.fainelli@gmail.com
[ Upstream commit 0a12e80ce4230434c2ed66ad0d65af0b7ccecea8 ]
Commit a09cd356586d ("ARM: bcm2835: add rpi power domain driver") attempted to annotate the structure rpi_power_domain_packet with __packed but introduced a typo and made it named __packet instead. Just drop the annotation since the structure is naturally aligned already.
Fixes: a09cd356586d ("ARM: bcm2835: add rpi power domain driver") Signed-off-by: Florian Fainelli f.fainelli@gmail.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/soc/bcm/raspberrypi-power.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/soc/bcm/raspberrypi-power.c +++ b/drivers/soc/bcm/raspberrypi-power.c @@ -45,7 +45,7 @@ struct rpi_power_domains { struct rpi_power_domain_packet { u32 domain; u32 on; -} __packet; +};
/* * Asks the firmware to enable or disable power on a specific power
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Madhavan Srinivasan maddy@linux.vnet.ibm.com
[ Upstream commit 9dfbf78e4114fcaf4ef61c49885c3ab5bad40d0b ]
If there is no d-cache-size property in the device tree, l1d_size could be zero. We don't actually expect that to happen, it's only been seen on mambo (simulator) in some configurations.
A zero-size l1d_size leads to the loop in the asm wrapping around to 2^64-1, and then walking off the end of the fallback area and eventually causing a page fault which is fatal.
Just default to 64K which is correct on some CPUs, and sane enough to not cause a crash on others.
Fixes: aa8a5e0062ac9 ('powerpc/64s: Add support for RFI flush of L1-D cache') Signed-off-by: Madhavan Srinivasan maddy@linux.vnet.ibm.com [mpe: Rewrite comment and change log] Signed-off-by: Michael Ellerman mpe@ellerman.id.au Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/powerpc/kernel/setup_64.c | 11 +++++++++++ 1 file changed, 11 insertions(+)
--- a/arch/powerpc/kernel/setup_64.c +++ b/arch/powerpc/kernel/setup_64.c @@ -864,6 +864,17 @@ static void init_fallback_flush(void) int cpu;
l1d_size = ppc64_caches.l1d.size; + + /* + * If there is no d-cache-size property in the device tree, l1d_size + * could be zero. That leads to the loop in the asm wrapping around to + * 2^64-1, and then walking off the end of the fallback area and + * eventually causing a page fault which is fatal. Just default to + * something vaguely sane. + */ + if (!l1d_size) + l1d_size = (64 * 1024); + limit = min(ppc64_bolted_size(), ppc64_rma_size);
/*
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Loic Poulain loic.poulain@linaro.org
[ Upstream commit 5db8f8d1099bd93a64a80b609dbcce887327ffc8 ]
As documented in the devicetree bindings (pci/kirin-pcie.txt) and the reset gpio name must be 'reset-gpios'. However, current driver erroneously looks for a 'reset-gpio' resource which makes the driver probe fail. Fix it.
Fixes: fc5165db245a ("PCI: kirin: Add HiSilicon Kirin SoC PCIe controller driver") Signed-off-by: Loic Poulain loic.poulain@linaro.org [lorenzo.pieralisi@arm.com: updated the commit log] Signed-off-by: Lorenzo Pieralisi lorenzo.pieralisi@arm.com Acked-by: Xiaowei Song songxiaowei@hisilicon.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/pci/dwc/pcie-kirin.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/pci/dwc/pcie-kirin.c +++ b/drivers/pci/dwc/pcie-kirin.c @@ -487,7 +487,7 @@ static int kirin_pcie_probe(struct platf return ret;
kirin_pcie->gpio_id_reset = of_get_named_gpio(dev->of_node, - "reset-gpio", 0); + "reset-gpios", 0); if (kirin_pcie->gpio_id_reset < 0) return -ENODEV;
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Yan Wang yan.wang@linux.intel.com
[ Upstream commit feb12f0cd8d7b1e8df2e6fce19fc9a026a468cc2 ]
In snd_soc_tplg_component_remove(), it should compare index and not dobj->index with SND_SOC_TPLG_INDEX_ALL for removing all topology objects.
Signed-off-by: Yan Wang yan.wang@linux.intel.com Signed-off-by: Liam Girdwood liam.r.girdwood@linux.intel.com Signed-off-by: Mark Brown broonie@kernel.org Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- sound/soc/soc-topology.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/sound/soc/soc-topology.c +++ b/sound/soc/soc-topology.c @@ -2571,7 +2571,7 @@ int snd_soc_tplg_component_remove(struct
/* match index */ if (dobj->index != index && - dobj->index != SND_SOC_TPLG_INDEX_ALL) + index != SND_SOC_TPLG_INDEX_ALL) continue;
switch (dobj->type) {
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Petr Mladek pmladek@suse.com
[ Upstream commit e91c2518a5d22a07642f35d85f39001ad379dae4 ]
The existing API allows to pass a sample data to initialize the shadow data. It works well when the data are position independent. But it fails miserably when we need to set a pointer to the shadow structure itself.
Unfortunately, we might need to initialize the pointer surprisingly often because of struct list_head. It is even worse because the list might be hidden in other common structures, for example, struct mutex, struct wait_queue_head.
For example, this was needed to fix races in ALSA sequencer. It required to add mutex into struct snd_seq_client. See commit b3defb791b26ea06 ("ALSA: seq: Make ioctls race-free") and commit d15d662e89fc667b9 ("ALSA: seq: Fix racy pool initializations")
This patch makes the API more safe. A custom constructor function and data are passed to klp_shadow_*alloc() functions instead of the sample data.
Note that ctor_data are no longer a template for shadow->data. It might point to any data that might be necessary when the constructor is called.
Also note that the constructor is called under klp_shadow_lock. It is an internal spin_lock that synchronizes alloc() vs. get() operations, see klp_shadow_get_or_alloc(). On one hand, this adds a risk of ABBA deadlocks. On the other hand, it allows to do some operations safely. For example, we could add the new structure into an existing list. This must be done only once when the structure is allocated.
Reported-by: Nicolai Stange nstange@suse.de Signed-off-by: Petr Mladek pmladek@suse.com Acked-by: Josh Poimboeuf jpoimboe@redhat.com Acked-by: Miroslav Benes mbenes@suse.cz Signed-off-by: Jiri Kosina jkosina@suse.cz Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- Documentation/livepatch/shadow-vars.txt | 31 +++++++---- include/linux/livepatch.h | 14 +++-- kernel/livepatch/shadow.c | 84 +++++++++++++++++++----------- samples/livepatch/livepatch-shadow-fix1.c | 18 ++++++ samples/livepatch/livepatch-shadow-fix2.c | 6 -- 5 files changed, 105 insertions(+), 48 deletions(-)
--- a/Documentation/livepatch/shadow-vars.txt +++ b/Documentation/livepatch/shadow-vars.txt @@ -34,9 +34,13 @@ meta-data and shadow-data: - data[] - storage for shadow data
It is important to note that the klp_shadow_alloc() and -klp_shadow_get_or_alloc() calls, described below, store a *copy* of the -data that the functions are provided. Callers should provide whatever -mutual exclusion is required of the shadow data. +klp_shadow_get_or_alloc() are zeroing the variable by default. +They also allow to call a custom constructor function when a non-zero +value is needed. Callers should provide whatever mutual exclusion +is required. + +Note that the constructor is called under klp_shadow_lock spinlock. It allows +to do actions that can be done only once when a new variable is allocated.
* klp_shadow_get() - retrieve a shadow variable data pointer - search hashtable for <obj, id> pair @@ -47,7 +51,7 @@ mutual exclusion is required of the shad - WARN and return NULL - if <obj, id> doesn't already exist - allocate a new shadow variable - - copy data into the new shadow variable + - initialize the variable using a custom constructor and data when provided - add <obj, id> to the global hashtable
* klp_shadow_get_or_alloc() - get existing or alloc a new shadow variable @@ -56,7 +60,7 @@ mutual exclusion is required of the shad - return existing shadow variable - if <obj, id> doesn't already exist - allocate a new shadow variable - - copy data into the new shadow variable + - initialize the variable using a custom constructor and data when provided - add <obj, id> pair to the global hashtable
* klp_shadow_free() - detach and free a <obj, id> shadow variable @@ -107,7 +111,8 @@ struct sta_info *sta_info_alloc(struct i sta = kzalloc(sizeof(*sta) + hw->sta_data_size, gfp);
/* Attach a corresponding shadow variable, then initialize it */ - ps_lock = klp_shadow_alloc(sta, PS_LOCK, NULL, sizeof(*ps_lock), gfp); + ps_lock = klp_shadow_alloc(sta, PS_LOCK, sizeof(*ps_lock), gfp, + NULL, NULL); if (!ps_lock) goto shadow_fail; spin_lock_init(ps_lock); @@ -148,16 +153,24 @@ shadow variables to parents already in-f For commit 1d147bfa6429, a good spot to allocate a shadow spinlock is inside ieee80211_sta_ps_deliver_wakeup():
+int ps_lock_shadow_ctor(void *obj, void *shadow_data, void *ctor_data) +{ + spinlock_t *lock = shadow_data; + + spin_lock_init(lock); + return 0; +} + #define PS_LOCK 1 void ieee80211_sta_ps_deliver_wakeup(struct sta_info *sta) { - DEFINE_SPINLOCK(ps_lock_fallback); spinlock_t *ps_lock;
/* sync with ieee80211_tx_h_unicast_ps_buf */ ps_lock = klp_shadow_get_or_alloc(sta, PS_LOCK, - &ps_lock_fallback, sizeof(ps_lock_fallback), - GFP_ATOMIC); + sizeof(*ps_lock), GFP_ATOMIC, + ps_lock_shadow_ctor, NULL); + if (ps_lock) spin_lock(ps_lock); ... --- a/include/linux/livepatch.h +++ b/include/linux/livepatch.h @@ -186,11 +186,17 @@ static inline bool klp_have_reliable_sta IS_ENABLED(CONFIG_HAVE_RELIABLE_STACKTRACE); }
+typedef int (*klp_shadow_ctor_t)(void *obj, + void *shadow_data, + void *ctor_data); + void *klp_shadow_get(void *obj, unsigned long id); -void *klp_shadow_alloc(void *obj, unsigned long id, void *data, - size_t size, gfp_t gfp_flags); -void *klp_shadow_get_or_alloc(void *obj, unsigned long id, void *data, - size_t size, gfp_t gfp_flags); +void *klp_shadow_alloc(void *obj, unsigned long id, + size_t size, gfp_t gfp_flags, + klp_shadow_ctor_t ctor, void *ctor_data); +void *klp_shadow_get_or_alloc(void *obj, unsigned long id, + size_t size, gfp_t gfp_flags, + klp_shadow_ctor_t ctor, void *ctor_data); void klp_shadow_free(void *obj, unsigned long id); void klp_shadow_free_all(unsigned long id);
--- a/kernel/livepatch/shadow.c +++ b/kernel/livepatch/shadow.c @@ -113,8 +113,10 @@ void *klp_shadow_get(void *obj, unsigned } EXPORT_SYMBOL_GPL(klp_shadow_get);
-static void *__klp_shadow_get_or_alloc(void *obj, unsigned long id, void *data, - size_t size, gfp_t gfp_flags, bool warn_on_exist) +static void *__klp_shadow_get_or_alloc(void *obj, unsigned long id, + size_t size, gfp_t gfp_flags, + klp_shadow_ctor_t ctor, void *ctor_data, + bool warn_on_exist) { struct klp_shadow *new_shadow; void *shadow_data; @@ -125,18 +127,15 @@ static void *__klp_shadow_get_or_alloc(v if (shadow_data) goto exists;
- /* Allocate a new shadow variable for use inside the lock below */ + /* + * Allocate a new shadow variable. Fill it with zeroes by default. + * More complex setting can be done by @ctor function. But it is + * called only when the buffer is really used (under klp_shadow_lock). + */ new_shadow = kzalloc(size + sizeof(*new_shadow), gfp_flags); if (!new_shadow) return NULL;
- new_shadow->obj = obj; - new_shadow->id = id; - - /* Initialize the shadow variable if data provided */ - if (data) - memcpy(new_shadow->data, data, size); - /* Look for <obj, id> again under the lock */ spin_lock_irqsave(&klp_shadow_lock, flags); shadow_data = klp_shadow_get(obj, id); @@ -150,6 +149,22 @@ static void *__klp_shadow_get_or_alloc(v goto exists; }
+ new_shadow->obj = obj; + new_shadow->id = id; + + if (ctor) { + int err; + + err = ctor(obj, new_shadow->data, ctor_data); + if (err) { + spin_unlock_irqrestore(&klp_shadow_lock, flags); + kfree(new_shadow); + pr_err("Failed to construct shadow variable <%p, %lx> (%d)\n", + obj, id, err); + return NULL; + } + } + /* No <obj, id> found, so attach the newly allocated one */ hash_add_rcu(klp_shadow_hash, &new_shadow->node, (unsigned long)new_shadow->obj); @@ -170,26 +185,32 @@ exists: * klp_shadow_alloc() - allocate and add a new shadow variable * @obj: pointer to parent object * @id: data identifier - * @data: pointer to data to attach to parent * @size: size of attached data * @gfp_flags: GFP mask for allocation + * @ctor: custom constructor to initialize the shadow data (optional) + * @ctor_data: pointer to any data needed by @ctor (optional) * - * Allocates @size bytes for new shadow variable data using @gfp_flags - * and copies @size bytes from @data into the new shadow variable's own - * data space. If @data is NULL, @size bytes are still allocated, but - * no copy is performed. The new shadow variable is then added to the - * global hashtable. - * - * If an existing <obj, id> shadow variable can be found, this routine - * will issue a WARN, exit early and return NULL. + * Allocates @size bytes for new shadow variable data using @gfp_flags. + * The data are zeroed by default. They are further initialized by @ctor + * function if it is not NULL. The new shadow variable is then added + * to the global hashtable. + * + * If an existing <obj, id> shadow variable can be found, this routine will + * issue a WARN, exit early and return NULL. + * + * This function guarantees that the constructor function is called only when + * the variable did not exist before. The cost is that @ctor is called + * in atomic context under a spin lock. * * Return: the shadow variable data element, NULL on duplicate or * failure. */ -void *klp_shadow_alloc(void *obj, unsigned long id, void *data, - size_t size, gfp_t gfp_flags) +void *klp_shadow_alloc(void *obj, unsigned long id, + size_t size, gfp_t gfp_flags, + klp_shadow_ctor_t ctor, void *ctor_data) { - return __klp_shadow_get_or_alloc(obj, id, data, size, gfp_flags, true); + return __klp_shadow_get_or_alloc(obj, id, size, gfp_flags, + ctor, ctor_data, true); } EXPORT_SYMBOL_GPL(klp_shadow_alloc);
@@ -197,25 +218,28 @@ EXPORT_SYMBOL_GPL(klp_shadow_alloc); * klp_shadow_get_or_alloc() - get existing or allocate a new shadow variable * @obj: pointer to parent object * @id: data identifier - * @data: pointer to data to attach to parent * @size: size of attached data * @gfp_flags: GFP mask for allocation + * @ctor: custom constructor to initialize the shadow data (optional) + * @ctor_data: pointer to any data needed by @ctor (optional) * * Returns a pointer to existing shadow data if an <obj, id> shadow * variable is already present. Otherwise, it creates a new shadow * variable like klp_shadow_alloc(). * - * This function guarantees that only one shadow variable exists with - * the given @id for the given @obj. It also guarantees that the shadow - * variable will be initialized by the given @data only when it did not - * exist before. + * This function guarantees that only one shadow variable exists with the given + * @id for the given @obj. It also guarantees that the constructor function + * will be called only when the variable did not exist before. The cost is + * that @ctor is called in atomic context under a spin lock. * * Return: the shadow variable data element, NULL on failure. */ -void *klp_shadow_get_or_alloc(void *obj, unsigned long id, void *data, - size_t size, gfp_t gfp_flags) +void *klp_shadow_get_or_alloc(void *obj, unsigned long id, + size_t size, gfp_t gfp_flags, + klp_shadow_ctor_t ctor, void *ctor_data) { - return __klp_shadow_get_or_alloc(obj, id, data, size, gfp_flags, false); + return __klp_shadow_get_or_alloc(obj, id, size, gfp_flags, + ctor, ctor_data, false); } EXPORT_SYMBOL_GPL(klp_shadow_get_or_alloc);
--- a/samples/livepatch/livepatch-shadow-fix1.c +++ b/samples/livepatch/livepatch-shadow-fix1.c @@ -56,6 +56,21 @@ struct dummy { unsigned long jiffies_expire; };
+/* + * The constructor makes more sense together with klp_shadow_get_or_alloc(). + * In this example, it would be safe to assign the pointer also to the shadow + * variable returned by klp_shadow_alloc(). But we wanted to show the more + * complicated use of the API. + */ +static int shadow_leak_ctor(void *obj, void *shadow_data, void *ctor_data) +{ + void **shadow_leak = shadow_data; + void *leak = ctor_data; + + *shadow_leak = leak; + return 0; +} + struct dummy *livepatch_fix1_dummy_alloc(void) { struct dummy *d; @@ -74,7 +89,8 @@ struct dummy *livepatch_fix1_dummy_alloc * pointer to handle resource release. */ leak = kzalloc(sizeof(int), GFP_KERNEL); - klp_shadow_alloc(d, SV_LEAK, &leak, sizeof(leak), GFP_KERNEL); + klp_shadow_alloc(d, SV_LEAK, sizeof(leak), GFP_KERNEL, + shadow_leak_ctor, leak);
pr_info("%s: dummy @ %p, expires @ %lx\n", __func__, d, d->jiffies_expire); --- a/samples/livepatch/livepatch-shadow-fix2.c +++ b/samples/livepatch/livepatch-shadow-fix2.c @@ -53,17 +53,15 @@ struct dummy { bool livepatch_fix2_dummy_check(struct dummy *d, unsigned long jiffies) { int *shadow_count; - int count;
/* * Patch: handle in-flight dummy structures, if they do not * already have a SV_COUNTER shadow variable, then attach a * new one. */ - count = 0; shadow_count = klp_shadow_get_or_alloc(d, SV_COUNTER, - &count, sizeof(count), - GFP_NOWAIT); + sizeof(*shadow_count), GFP_NOWAIT, + NULL, NULL); if (shadow_count) *shadow_count += 1;
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Petr Mladek pmladek@suse.com
[ Upstream commit 3b2c77d000fe9f7d02e9e726e00dccf9f92b256f ]
We might need to do some actions before the shadow variable is freed. For example, we might need to remove it from a list or free some data that it points to.
This is already possible now. The user can get the shadow variable by klp_shadow_get(), do the necessary actions, and then call klp_shadow_free().
This patch allows to do it a more elegant way. The user could implement the needed actions in a callback that is passed to klp_shadow_free() as a parameter. The callback usually does reverse operations to the constructor callback that can be called by klp_shadow_*alloc().
It is especially useful for klp_shadow_free_all(). There we need to do these extra actions for each found shadow variable with the given ID.
Note that the memory used by the shadow variable itself is still released later by rcu callback. It is needed to protect internal structures that keep all shadow variables. But the destructor is called immediately. The shadow variable must not be access anyway after klp_shadow_free() is called. The user is responsible to protect this any suitable way.
Be aware that the destructor is called under klp_shadow_lock. It is the same as for the contructor in klp_shadow_alloc().
Signed-off-by: Petr Mladek pmladek@suse.com Acked-by: Josh Poimboeuf jpoimboe@redhat.com Acked-by: Miroslav Benes mbenes@suse.cz Signed-off-by: Jiri Kosina jkosina@suse.cz Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- Documentation/livepatch/shadow-vars.txt | 10 +++++++--- include/linux/livepatch.h | 5 +++-- kernel/livepatch/shadow.c | 26 ++++++++++++++++++-------- samples/livepatch/livepatch-shadow-fix1.c | 25 +++++++++++++++---------- samples/livepatch/livepatch-shadow-fix2.c | 27 ++++++++++++++++----------- 5 files changed, 59 insertions(+), 34 deletions(-)
--- a/Documentation/livepatch/shadow-vars.txt +++ b/Documentation/livepatch/shadow-vars.txt @@ -65,11 +65,15 @@ to do actions that can be done only once
* klp_shadow_free() - detach and free a <obj, id> shadow variable - find and remove a <obj, id> reference from global hashtable - - if found, free shadow variable + - if found + - call destructor function if defined + - free shadow variable
* klp_shadow_free_all() - detach and free all <*, id> shadow variables - find and remove any <*, id> references from global hashtable - - if found, free shadow variable + - if found + - call destructor function if defined + - free shadow variable
2. Use cases @@ -136,7 +140,7 @@ variable:
void sta_info_free(struct ieee80211_local *local, struct sta_info *sta) { - klp_shadow_free(sta, PS_LOCK); + klp_shadow_free(sta, PS_LOCK, NULL); kfree(sta); ...
--- a/include/linux/livepatch.h +++ b/include/linux/livepatch.h @@ -189,6 +189,7 @@ static inline bool klp_have_reliable_sta typedef int (*klp_shadow_ctor_t)(void *obj, void *shadow_data, void *ctor_data); +typedef void (*klp_shadow_dtor_t)(void *obj, void *shadow_data);
void *klp_shadow_get(void *obj, unsigned long id); void *klp_shadow_alloc(void *obj, unsigned long id, @@ -197,8 +198,8 @@ void *klp_shadow_alloc(void *obj, unsign void *klp_shadow_get_or_alloc(void *obj, unsigned long id, size_t size, gfp_t gfp_flags, klp_shadow_ctor_t ctor, void *ctor_data); -void klp_shadow_free(void *obj, unsigned long id); -void klp_shadow_free_all(unsigned long id); +void klp_shadow_free(void *obj, unsigned long id, klp_shadow_dtor_t dtor); +void klp_shadow_free_all(unsigned long id, klp_shadow_dtor_t dtor);
#else /* !CONFIG_LIVEPATCH */
--- a/kernel/livepatch/shadow.c +++ b/kernel/livepatch/shadow.c @@ -243,15 +243,26 @@ void *klp_shadow_get_or_alloc(void *obj, } EXPORT_SYMBOL_GPL(klp_shadow_get_or_alloc);
+static void klp_shadow_free_struct(struct klp_shadow *shadow, + klp_shadow_dtor_t dtor) +{ + hash_del_rcu(&shadow->node); + if (dtor) + dtor(shadow->obj, shadow->data); + kfree_rcu(shadow, rcu_head); +} + /** * klp_shadow_free() - detach and free a <obj, id> shadow variable * @obj: pointer to parent object * @id: data identifier + * @dtor: custom callback that can be used to unregister the variable + * and/or free data that the shadow variable points to (optional) * * This function releases the memory for this <obj, id> shadow variable * instance, callers should stop referencing it accordingly. */ -void klp_shadow_free(void *obj, unsigned long id) +void klp_shadow_free(void *obj, unsigned long id, klp_shadow_dtor_t dtor) { struct klp_shadow *shadow; unsigned long flags; @@ -263,8 +274,7 @@ void klp_shadow_free(void *obj, unsigned (unsigned long)obj) {
if (klp_shadow_match(shadow, obj, id)) { - hash_del_rcu(&shadow->node); - kfree_rcu(shadow, rcu_head); + klp_shadow_free_struct(shadow, dtor); break; } } @@ -276,11 +286,13 @@ EXPORT_SYMBOL_GPL(klp_shadow_free); /** * klp_shadow_free_all() - detach and free all <*, id> shadow variables * @id: data identifier + * @dtor: custom callback that can be used to unregister the variable + * and/or free data that the shadow variable points to (optional) * * This function releases the memory for all <*, id> shadow variable * instances, callers should stop referencing them accordingly. */ -void klp_shadow_free_all(unsigned long id) +void klp_shadow_free_all(unsigned long id, klp_shadow_dtor_t dtor) { struct klp_shadow *shadow; unsigned long flags; @@ -290,10 +302,8 @@ void klp_shadow_free_all(unsigned long i
/* Delete all <*, id> from hash */ hash_for_each(klp_shadow_hash, i, shadow, node) { - if (klp_shadow_match(shadow, shadow->obj, id)) { - hash_del_rcu(&shadow->node); - kfree_rcu(shadow, rcu_head); - } + if (klp_shadow_match(shadow, shadow->obj, id)) + klp_shadow_free_struct(shadow, dtor); }
spin_unlock_irqrestore(&klp_shadow_lock, flags); --- a/samples/livepatch/livepatch-shadow-fix1.c +++ b/samples/livepatch/livepatch-shadow-fix1.c @@ -98,9 +98,19 @@ struct dummy *livepatch_fix1_dummy_alloc return d; }
+static void livepatch_fix1_dummy_leak_dtor(void *obj, void *shadow_data) +{ + void *d = obj; + void **shadow_leak = shadow_data; + + kfree(*shadow_leak); + pr_info("%s: dummy @ %p, prevented leak @ %p\n", + __func__, d, *shadow_leak); +} + void livepatch_fix1_dummy_free(struct dummy *d) { - void **shadow_leak, *leak; + void **shadow_leak;
/* * Patch: fetch the saved SV_LEAK shadow variable, detach and @@ -109,15 +119,10 @@ void livepatch_fix1_dummy_free(struct du * was loaded.) */ shadow_leak = klp_shadow_get(d, SV_LEAK); - if (shadow_leak) { - leak = *shadow_leak; - klp_shadow_free(d, SV_LEAK); - kfree(leak); - pr_info("%s: dummy @ %p, prevented leak @ %p\n", - __func__, d, leak); - } else { + if (shadow_leak) + klp_shadow_free(d, SV_LEAK, livepatch_fix1_dummy_leak_dtor); + else pr_info("%s: dummy @ %p leaked!\n", __func__, d); - }
kfree(d); } @@ -163,7 +168,7 @@ static int livepatch_shadow_fix1_init(vo static void livepatch_shadow_fix1_exit(void) { /* Cleanup any existing SV_LEAK shadow variables */ - klp_shadow_free_all(SV_LEAK); + klp_shadow_free_all(SV_LEAK, livepatch_fix1_dummy_leak_dtor);
WARN_ON(klp_unregister_patch(&patch)); } --- a/samples/livepatch/livepatch-shadow-fix2.c +++ b/samples/livepatch/livepatch-shadow-fix2.c @@ -68,22 +68,27 @@ bool livepatch_fix2_dummy_check(struct d return time_after(jiffies, d->jiffies_expire); }
+static void livepatch_fix2_dummy_leak_dtor(void *obj, void *shadow_data) +{ + void *d = obj; + void **shadow_leak = shadow_data; + + kfree(*shadow_leak); + pr_info("%s: dummy @ %p, prevented leak @ %p\n", + __func__, d, *shadow_leak); +} + void livepatch_fix2_dummy_free(struct dummy *d) { - void **shadow_leak, *leak; + void **shadow_leak; int *shadow_count;
/* Patch: copy the memory leak patch from the fix1 module. */ shadow_leak = klp_shadow_get(d, SV_LEAK); - if (shadow_leak) { - leak = *shadow_leak; - klp_shadow_free(d, SV_LEAK); - kfree(leak); - pr_info("%s: dummy @ %p, prevented leak @ %p\n", - __func__, d, leak); - } else { + if (shadow_leak) + klp_shadow_free(d, SV_LEAK, livepatch_fix2_dummy_leak_dtor); + else pr_info("%s: dummy @ %p leaked!\n", __func__, d); - }
/* * Patch: fetch the SV_COUNTER shadow variable and display @@ -93,7 +98,7 @@ void livepatch_fix2_dummy_free(struct du if (shadow_count) { pr_info("%s: dummy @ %p, check counter = %d\n", __func__, d, *shadow_count); - klp_shadow_free(d, SV_COUNTER); + klp_shadow_free(d, SV_COUNTER, NULL); }
kfree(d); @@ -140,7 +145,7 @@ static int livepatch_shadow_fix2_init(vo static void livepatch_shadow_fix2_exit(void) { /* Cleanup any existing SV_COUNTER shadow variables */ - klp_shadow_free_all(SV_COUNTER); + klp_shadow_free_all(SV_COUNTER, NULL);
WARN_ON(klp_unregister_patch(&patch)); }
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Andre Przywara andre.przywara@arm.com
[ Upstream commit bf9a41377d14f565764022470e14aae72559589a ]
When vgic_prune_ap_list() finds an interrupt that needs to be migrated to a new VCPU, we should notify this VCPU of the pending interrupt, since it requires immediate action. Kick this VCPU once we have added the new IRQ to the list, but only after dropping the locks.
Reported-by: Stefano Stabellini sstabellini@kernel.org Reviewed-by: Christoffer Dall christoffer.dall@arm.com Signed-off-by: Andre Przywara andre.przywara@arm.com Signed-off-by: Marc Zyngier marc.zyngier@arm.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- virt/kvm/arm/vgic/vgic.c | 8 ++++++++ 1 file changed, 8 insertions(+)
--- a/virt/kvm/arm/vgic/vgic.c +++ b/virt/kvm/arm/vgic/vgic.c @@ -599,6 +599,7 @@ retry:
list_for_each_entry_safe(irq, tmp, &vgic_cpu->ap_list_head, ap_list) { struct kvm_vcpu *target_vcpu, *vcpuA, *vcpuB; + bool target_vcpu_needs_kick = false;
spin_lock(&irq->irq_lock);
@@ -669,11 +670,18 @@ retry: list_del(&irq->ap_list); irq->vcpu = target_vcpu; list_add_tail(&irq->ap_list, &new_cpu->ap_list_head); + target_vcpu_needs_kick = true; }
spin_unlock(&irq->irq_lock); spin_unlock(&vcpuB->arch.vgic_cpu.ap_list_lock); spin_unlock_irqrestore(&vcpuA->arch.vgic_cpu.ap_list_lock, flags); + + if (target_vcpu_needs_kick) { + kvm_make_request(KVM_REQ_IRQ_PENDING, target_vcpu); + kvm_vcpu_kick(target_vcpu); + } + goto retry; }
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Simon Gaiser simon@invisiblethingslab.com
[ Upstream commit ebf04f331fa15a966262341a7dc6b1a0efd633e4 ]
xenbus_command_reply() did not actually copy the response string and leaked stack content instead.
Fixes: 9a6161fe73bd ("xen: return xenstore command failures via response instead of rc") Signed-off-by: Simon Gaiser simon@invisiblethingslab.com Reviewed-by: Juergen Gross jgross@suse.com Signed-off-by: Boris Ostrovsky boris.ostrovsky@oracle.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/xen/xenbus/xenbus_dev_frontend.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
--- a/drivers/xen/xenbus/xenbus_dev_frontend.c +++ b/drivers/xen/xenbus/xenbus_dev_frontend.c @@ -403,7 +403,7 @@ static int xenbus_command_reply(struct x { struct { struct xsd_sockmsg hdr; - const char body[16]; + char body[16]; } msg; int rc;
@@ -412,6 +412,7 @@ static int xenbus_command_reply(struct x msg.hdr.len = strlen(reply) + 1; if (msg.hdr.len > sizeof(msg.body)) return -E2BIG; + memcpy(&msg.body, reply, msg.hdr.len);
mutex_lock(&u->reply_mutex); rc = queue_reply(&u->read_buffers, &msg, sizeof(msg.hdr) + msg.hdr.len);
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Mark Rutland mark.rutland@arm.com
[ Upstream commit 800cb2e553d44541b83aa3ec45d9839385fe8ab6 ]
In arm64's kasan_init(), we use pfn_to_nid() to find the NUMA node a span of memory is in, hoping to allocate shadow from the same NUMA node. However, at this point, the page array has not been initialized, and thus this is bogus.
Since commit:
f165b378bbdf6c8a ("mm: uninitialized struct page poisoning sanity")
... accessing fields of the page array results in a boot time Oops(), highlighting this problem:
[ 0.000000] Unable to handle kernel paging request at virtual address dfff200000000000 [ 0.000000] Mem abort info: [ 0.000000] ESR = 0x96000004 [ 0.000000] Exception class = DABT (current EL), IL = 32 bits [ 0.000000] SET = 0, FnV = 0 [ 0.000000] EA = 0, S1PTW = 0 [ 0.000000] Data abort info: [ 0.000000] ISV = 0, ISS = 0x00000004 [ 0.000000] CM = 0, WnR = 0 [ 0.000000] [dfff200000000000] address between user and kernel address ranges [ 0.000000] Internal error: Oops: 96000004 [#1] PREEMPT SMP [ 0.000000] Modules linked in: [ 0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 4.16.0-07317-gf165b378bbdf #42 [ 0.000000] Hardware name: ARM Juno development board (r1) (DT) [ 0.000000] pstate: 80000085 (Nzcv daIf -PAN -UAO) [ 0.000000] pc : __asan_load8+0x8c/0xa8 [ 0.000000] lr : __dump_page+0x3c/0x3b8 [ 0.000000] sp : ffff2000099b7ca0 [ 0.000000] x29: ffff2000099b7ca0 x28: ffff20000a1762c0 [ 0.000000] x27: ffff7e0000000000 x26: ffff2000099dd000 [ 0.000000] x25: ffff200009a3f960 x24: ffff200008f9c38c [ 0.000000] x23: ffff20000a9d3000 x22: ffff200009735430 [ 0.000000] x21: fffffffffffffffe x20: ffff7e0001e50420 [ 0.000000] x19: ffff7e0001e50400 x18: 0000000000001840 [ 0.000000] x17: ffffffffffff8270 x16: 0000000000001840 [ 0.000000] x15: 0000000000001920 x14: 0000000000000004 [ 0.000000] x13: 0000000000000000 x12: 0000000000000800 [ 0.000000] x11: 1ffff0012d0f89ff x10: ffff10012d0f89ff [ 0.000000] x9 : 0000000000000000 x8 : ffff8009687c5000 [ 0.000000] x7 : 0000000000000000 x6 : ffff10000f282000 [ 0.000000] x5 : 0000000000000040 x4 : fffffffffffffffe [ 0.000000] x3 : 0000000000000000 x2 : dfff200000000000 [ 0.000000] x1 : 0000000000000005 x0 : 0000000000000000 [ 0.000000] Process swapper (pid: 0, stack limit = 0x (ptrval)) [ 0.000000] Call trace: [ 0.000000] __asan_load8+0x8c/0xa8 [ 0.000000] __dump_page+0x3c/0x3b8 [ 0.000000] dump_page+0xc/0x18 [ 0.000000] kasan_init+0x2e8/0x5a8 [ 0.000000] setup_arch+0x294/0x71c [ 0.000000] start_kernel+0xdc/0x500 [ 0.000000] Code: aa0403e0 9400063c 17ffffee d343fc00 (38e26800) [ 0.000000] ---[ end trace 67064f0e9c0cc338 ]--- [ 0.000000] Kernel panic - not syncing: Attempted to kill the idle task! [ 0.000000] ---[ end Kernel panic - not syncing: Attempted to kill the idle task! ]---
Let's fix this by using early_pfn_to_nid(), as other architectures do in their kasan init code. Note that early_pfn_to_nid acquires the nid from the memblock array, which we iterate over in kasan_init(), so this should be fine.
Signed-off-by: Mark Rutland mark.rutland@arm.com Fixes: 39d114ddc6822302 ("arm64: add KASAN support") Cc: Will Deacon will.deacon@arm.com Signed-off-by: Catalin Marinas catalin.marinas@arm.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/arm64/mm/kasan_init.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
--- a/arch/arm64/mm/kasan_init.c +++ b/arch/arm64/mm/kasan_init.c @@ -204,7 +204,7 @@ void __init kasan_init(void) clear_pgds(KASAN_SHADOW_START, KASAN_SHADOW_END);
kasan_map_populate(kimg_shadow_start, kimg_shadow_end, - pfn_to_nid(virt_to_pfn(lm_alias(_text)))); + early_pfn_to_nid(virt_to_pfn(lm_alias(_text))));
kasan_populate_zero_shadow((void *)KASAN_SHADOW_START, (void *)mod_shadow_start); @@ -224,7 +224,7 @@ void __init kasan_init(void)
kasan_map_populate((unsigned long)kasan_mem_to_shadow(start), (unsigned long)kasan_mem_to_shadow(end), - pfn_to_nid(virt_to_pfn(start))); + early_pfn_to_nid(virt_to_pfn(start))); }
/*
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Liam Girdwood liam.r.girdwood@linux.intel.com
[ Upstream commit 05bdcf12905533b8628627b6634608cd3b57c607 ]
Validate the topology input before we dereference the pointer.
Signed-off-by: Liam Girdwood liam.r.girdwood@linux.intel.com Signed-off-by: Mark Brown broonie@kernel.org Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- sound/soc/soc-topology.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
--- a/sound/soc/soc-topology.c +++ b/sound/soc/soc-topology.c @@ -510,7 +510,7 @@ static void remove_widget(struct snd_soc */ if (dobj->widget.kcontrol_type == SND_SOC_TPLG_TYPE_ENUM) { /* enumerated widget mixer */ - for (i = 0; i < w->num_kcontrols; i++) { + for (i = 0; w->kcontrols != NULL && i < w->num_kcontrols; i++) { struct snd_kcontrol *kcontrol = w->kcontrols[i]; struct soc_enum *se = (struct soc_enum *)kcontrol->private_value; @@ -528,7 +528,7 @@ static void remove_widget(struct snd_soc kfree(w->kcontrol_news); } else { /* volume mixer or bytes controls */ - for (i = 0; i < w->num_kcontrols; i++) { + for (i = 0; w->kcontrols != NULL && i < w->num_kcontrols; i++) { struct snd_kcontrol *kcontrol = w->kcontrols[i];
if (dobj->widget.kcontrol_type
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: sxauwsk sxauwsk@163.com
[ Upstream commit 49530e6411789c1b9ea3ebc58e520c19d1c3752f ]
In case of xspi work in busy condition, may send bytes failed. once something wrong, spi controller did't work any more
My test found this situation appear in both of read/write process. so when TX FIFO is full, add one byte delay before send data;
Signed-off-by: sxauwsk sxauwsk@163.com Signed-off-by: Mark Brown broonie@kernel.org Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/spi/spi-cadence.c | 8 ++++++++ 1 file changed, 8 insertions(+)
--- a/drivers/spi/spi-cadence.c +++ b/drivers/spi/spi-cadence.c @@ -313,6 +313,14 @@ static void cdns_spi_fill_tx_fifo(struct
while ((trans_cnt < CDNS_SPI_FIFO_DEPTH) && (xspi->tx_bytes > 0)) { + + /* When xspi in busy condition, bytes may send failed, + * then spi control did't work thoroughly, add one byte delay + */ + if (cdns_spi_read(xspi, CDNS_SPI_ISR) & + CDNS_SPI_IXR_TXFULL) + usleep_range(10, 20); + if (xspi->txbuf) cdns_spi_write(xspi, CDNS_SPI_TXD, *xspi->txbuf++); else
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Jiang Biao jiang.biao2@zte.com.cn
[ Upstream commit 946b81da114b8ba5c74bb01e57c0c6eca2bdc801 ]
As described in the comment of blkcg_activate_policy(), *Update of each blkg is protected by both queue and blkcg locks so that holding either lock and testing blkcg_policy_enabled() is always enough for dereferencing policy data.* with queue lock held, there is no need to hold blkcg lock in blkcg_deactivate_policy(). Similar case is in blkcg_activate_policy(), which has removed holding of blkcg lock in commit 4c55f4f9ad3001ac1fefdd8d8ca7641d18558e23.
Signed-off-by: Jiang Biao jiang.biao2@zte.com.cn Signed-off-by: Wen Yang wen.yang99@zte.com.cn CC: Tejun Heo tj@kernel.org Signed-off-by: Jens Axboe axboe@kernel.dk Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- block/blk-cgroup.c | 5 ----- 1 file changed, 5 deletions(-)
--- a/block/blk-cgroup.c +++ b/block/blk-cgroup.c @@ -1367,17 +1367,12 @@ void blkcg_deactivate_policy(struct requ __clear_bit(pol->plid, q->blkcg_pols);
list_for_each_entry(blkg, &q->blkg_list, q_node) { - /* grab blkcg lock too while removing @pd from @blkg */ - spin_lock(&blkg->blkcg->lock); - if (blkg->pd[pol->plid]) { if (pol->pd_offline_fn) pol->pd_offline_fn(blkg->pd[pol->plid]); pol->pd_free_fn(blkg->pd[pol->plid]); blkg->pd[pol->plid] = NULL; } - - spin_unlock(&blkg->blkcg->lock); }
spin_unlock_irq(q->queue_lock);
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Martin Blumenstingl martin.blumenstingl@googlemail.com
[ Upstream commit 8aec5fc1d4d881fe446addb94309efb39d4e5b23 ]
This adds USB host support to the Meson GXL SoC. A dwc3 controller is used for host-mode, while a dwc2 controller (not added in this patch because I could not get it working) is used for device-mode only.
The dwc3 controller's internal roothub has two USB2 ports enabled but no USB3 port. Each of the ports is supplied by a separate PHY. The USB pins are connected to the SoC's USBHOST_A and USBOTG_B pins. Due to the way the roothub works internally the USB PHYs are left enabled. When the dwc3 controller is disabled the PHY is never powered on so it does not draw any extra power. However, when the dwc3 host controller is enabled then all PHYs also have to be enabled, otherwise USB devices will not be detected (regardless of whether they are plugged into an enabled port or not). This means that only the dwc3 controller has to be enabled on boards with USB support (instead of requiring all boards to enable the PHYs additionally with the chance of forgetting to enable one and breaking all other ports with that as well).
This also adds the USB3 PHY which currently only does some basic initialization. That however is required because without it high-speed devices (like USB thumb drives) do not work on some devices (probably because the bootloader does not configure the USB3 PHY registers).
Signed-off-by: Martin Blumenstingl martin.blumenstingl@googlemail.com Signed-off-by: Kevin Hilman khilman@baylibre.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/arm64/boot/dts/amlogic/meson-gxl.dtsi | 61 +++++++++++++++++++++++++++++ 1 file changed, 61 insertions(+)
--- a/arch/arm64/boot/dts/amlogic/meson-gxl.dtsi +++ b/arch/arm64/boot/dts/amlogic/meson-gxl.dtsi @@ -57,6 +57,67 @@ no-map; }; }; + + soc { + usb0: usb@c9000000 { + status = "disabled"; + compatible = "amlogic,meson-gxl-dwc3"; + #address-cells = <2>; + #size-cells = <2>; + ranges; + + clocks = <&clkc CLKID_USB>; + clock-names = "usb_general"; + resets = <&reset RESET_USB_OTG>; + reset-names = "usb_otg"; + + dwc3: dwc3@c9000000 { + compatible = "snps,dwc3"; + reg = <0x0 0xc9000000 0x0 0x100000>; + interrupts = <GIC_SPI 30 IRQ_TYPE_LEVEL_HIGH>; + dr_mode = "host"; + maximum-speed = "high-speed"; + snps,dis_u2_susphy_quirk; + phys = <&usb3_phy>, <&usb2_phy0>, <&usb2_phy1>; + }; + }; + }; +}; + +&apb { + usb2_phy0: phy@78000 { + compatible = "amlogic,meson-gxl-usb2-phy"; + #phy-cells = <0>; + reg = <0x0 0x78000 0x0 0x20>; + clocks = <&clkc CLKID_USB>; + clock-names = "phy"; + resets = <&reset RESET_USB_OTG>; + reset-names = "phy"; + status = "okay"; + }; + + usb2_phy1: phy@78020 { + compatible = "amlogic,meson-gxl-usb2-phy"; + #phy-cells = <0>; + reg = <0x0 0x78020 0x0 0x20>; + clocks = <&clkc CLKID_USB>; + clock-names = "phy"; + resets = <&reset RESET_USB_OTG>; + reset-names = "phy"; + status = "okay"; + }; + + usb3_phy: phy@78080 { + compatible = "amlogic,meson-gxl-usb3-phy"; + #phy-cells = <0>; + reg = <0x0 0x78080 0x0 0x20>; + interrupts = <GIC_SPI 16 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&clkc CLKID_USB>, <&clkc_AO CLKID_AO_CEC_32K>; + clock-names = "phy", "peripheral"; + resets = <&reset RESET_USB_OTG>, <&reset RESET_USB_OTG>; + reset-names = "phy", "peripheral"; + status = "okay"; + }; };
ðmac {
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Martin Blumenstingl martin.blumenstingl@googlemail.com
[ Upstream commit 458baa95c86406c81c6ebac0a98d1689075a3ec4 ]
The USB configuration on GXM is slightly different than on GXL. The dwc3 controller's internal hub has three USB2 ports (instead of 2 on GXL) along with a dedicated USB2 PHY for this port. However, it seems that there are no pins on GXM which would allow connecting the third port to a physical USB port. Passing the third PHY is required though, because without it none of the other USB ports is working (this seems to be a limitation of how the internal USB hub works, if one PHY is disabled then no USB port works).
Signed-off-by: Martin Blumenstingl martin.blumenstingl@googlemail.com Signed-off-by: Kevin Hilman khilman@baylibre.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/arm64/boot/dts/amlogic/meson-gxm.dtsi | 17 +++++++++++++++++ 1 file changed, 17 insertions(+)
--- a/arch/arm64/boot/dts/amlogic/meson-gxm.dtsi +++ b/arch/arm64/boot/dts/amlogic/meson-gxm.dtsi @@ -117,6 +117,19 @@ }; };
+&apb { + usb2_phy2: phy@78040 { + compatible = "amlogic,meson-gxl-usb2-phy"; + #phy-cells = <0>; + reg = <0x0 0x78040 0x0 0x20>; + clocks = <&clkc CLKID_USB>; + clock-names = "phy"; + resets = <&reset RESET_USB_OTG>; + reset-names = "phy"; + status = "okay"; + }; +}; + &clkc_AO { compatible = "amlogic,meson-gxm-aoclkc", "amlogic,meson-gx-aoclkc"; }; @@ -137,3 +150,7 @@ &hdmi_tx { compatible = "amlogic,meson-gxm-dw-hdmi", "amlogic,meson-gx-dw-hdmi"; }; + +&dwc3 { + phys = <&usb3_phy>, <&usb2_phy0>, <&usb2_phy1>, <&usb2_phy2>; +};
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Martin Blumenstingl martin.blumenstingl@googlemail.com
[ Upstream commit b9f07cb4f41fccbe7616482015d28e6e26aec3a3 ]
All boards based on the P212 reference design (the P212 reference board itself and the Khadas VIM) have USB connectors (in case of the Khadas VIM the first port is exposed through the USB Type-C connector, the second port is connected to a 4-port USB hub). This enables the USB controller on these boards to make the USB ports actually usable.
Signed-off-by: Martin Blumenstingl martin.blumenstingl@googlemail.com Signed-off-by: Kevin Hilman khilman@baylibre.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/arm64/boot/dts/amlogic/meson-gxl-s905x-p212.dtsi | 4 ++++ 1 file changed, 4 insertions(+)
--- a/arch/arm64/boot/dts/amlogic/meson-gxl-s905x-p212.dtsi +++ b/arch/arm64/boot/dts/amlogic/meson-gxl-s905x-p212.dtsi @@ -185,3 +185,7 @@ pinctrl-0 = <&uart_ao_a_pins>; pinctrl-names = "default"; }; + +&usb0 { + status = "okay"; +};
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Martin Blumenstingl martin.blumenstingl@googlemail.com
[ Upstream commit 972cd12a027256061c19c164021f2a771e860438 ]
All S905D (GXL) and S912 (GXM) reference boards (namely these are P230, P231, Q200 and Q201) provide USB connectors. This enables the USB controller on these boards to make the USB ports actually usable.
Signed-off-by: Martin Blumenstingl martin.blumenstingl@googlemail.com Signed-off-by: Kevin Hilman khilman@baylibre.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/arm64/boot/dts/amlogic/meson-gx-p23x-q20x.dtsi | 4 ++++ 1 file changed, 4 insertions(+)
--- a/arch/arm64/boot/dts/amlogic/meson-gx-p23x-q20x.dtsi +++ b/arch/arm64/boot/dts/amlogic/meson-gx-p23x-q20x.dtsi @@ -248,3 +248,7 @@ pinctrl-0 = <&uart_ao_a_pins>; pinctrl-names = "default"; }; + +&usb0 { + status = "okay"; +};
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Martin Blumenstingl martin.blumenstingl@googlemail.com
[ Upstream commit b83687f359d9b4128073f06ab7a06489eb04aa7c ]
The LibreTech CC ("Le Potato") board provides four USB connectors. These are provided by a hub which is connected to the SoC's USB controller. Enable the SoC's USB controller to make the USB ports usable. Also turn on the HDMI_5V regulator when powering on the PHY because (even though it's not shown in the schematics) HDMI_5V also supplies the USB VBUS.
Signed-off-by: Martin Blumenstingl martin.blumenstingl@googlemail.com Signed-off-by: Kevin Hilman khilman@baylibre.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/arm64/boot/dts/amlogic/meson-gxl-s905x-libretech-cc.dts | 12 +++++++++++ 1 file changed, 12 insertions(+)
--- a/arch/arm64/boot/dts/amlogic/meson-gxl-s905x-libretech-cc.dts +++ b/arch/arm64/boot/dts/amlogic/meson-gxl-s905x-libretech-cc.dts @@ -271,3 +271,15 @@ pinctrl-0 = <&uart_ao_a_pins>; pinctrl-names = "default"; }; + +&usb0 { + status = "okay"; +}; + +&usb2_phy0 { + /* + * even though the schematics don't show it: + * HDMI_5V is also used as supply for the USB VBUS. + */ + phy-supply = <&hdmi_5v>; +};
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Martin Blumenstingl martin.blumenstingl@googlemail.com
[ Upstream commit 55ef32249bb647c6b64adcf943918d302a0020a7 ]
The Nexbox A95X provides two USB ports. Enable the SoC's USB controller on this board to make these USB ports usable.
Signed-off-by: Martin Blumenstingl martin.blumenstingl@googlemail.com Signed-off-by: Kevin Hilman khilman@baylibre.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/arm64/boot/dts/amlogic/meson-gxl-s905x-nexbox-a95x.dts | 4 ++++ 1 file changed, 4 insertions(+)
--- a/arch/arm64/boot/dts/amlogic/meson-gxl-s905x-nexbox-a95x.dts +++ b/arch/arm64/boot/dts/amlogic/meson-gxl-s905x-nexbox-a95x.dts @@ -251,3 +251,7 @@ pinctrl-0 = <&uart_ao_a_pins>; pinctrl-names = "default"; }; + +&usb0 { + status = "okay"; +};
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Martin Blumenstingl martin.blumenstingl@googlemail.com
[ Upstream commit 4b7b0d7b25538d2ad421a1041267d5208d3425bc ]
The Khadas VIM2 board connects the dwc3 controller to an internal 4-port USB hub which. Two of these ports are accessible directly soldered to the board, while the other two are accessible through the 40-pin "GPIO" header.
Signed-off-by: Martin Blumenstingl martin.blumenstingl@googlemail.com Signed-off-by: Kevin Hilman khilman@baylibre.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/arm64/boot/dts/amlogic/meson-gxm-khadas-vim2.dts | 4 ++++ 1 file changed, 4 insertions(+)
--- a/arch/arm64/boot/dts/amlogic/meson-gxm-khadas-vim2.dts +++ b/arch/arm64/boot/dts/amlogic/meson-gxm-khadas-vim2.dts @@ -413,3 +413,7 @@ status = "okay"; vref-supply = <&vddio_ao18>; }; + +&usb0 { + status = "okay"; +};
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Tung Nguyen tung.q.nguyen@dektech.com.au
[ Upstream commit 36a50a989ee8267588de520b8704b85f045a3220 ]
When configuring the number of used bearers to MAX_BEARER and issuing command "tipc link monitor summary", the command enters infinite loop in user space.
This issue happens because function tipc_nl_node_dump_monitor() returns the wrong 'prev_bearer' value when all potential monitors have been scanned.
The correct behavior is to always try to scan all monitors until either the netlink message is full, in which case we return the bearer identity of the affected monitor, or we continue through the whole bearer array until we can return MAX_BEARERS. This solution also caters for the case where there may be gaps in the bearer array.
Signed-off-by: Tung Nguyen tung.q.nguyen@dektech.com.au Signed-off-by: Jon Maloy jon.maloy@ericsson.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- net/tipc/monitor.c | 2 +- net/tipc/node.c | 11 ++++------- 2 files changed, 5 insertions(+), 8 deletions(-)
--- a/net/tipc/monitor.c +++ b/net/tipc/monitor.c @@ -777,7 +777,7 @@ int __tipc_nl_add_monitor(struct net *ne
ret = tipc_bearer_get_name(net, bearer_name, bearer_id); if (ret || !mon) - return -EINVAL; + return 0;
hdr = genlmsg_put(msg->skb, msg->portid, msg->seq, &tipc_genl_family, NLM_F_MULTI, TIPC_NL_MON_GET); --- a/net/tipc/node.c +++ b/net/tipc/node.c @@ -2145,8 +2145,8 @@ int tipc_nl_node_dump_monitor(struct sk_ struct net *net = sock_net(skb->sk); u32 prev_bearer = cb->args[0]; struct tipc_nl_msg msg; + int bearer_id; int err; - int i;
if (prev_bearer == MAX_BEARERS) return 0; @@ -2156,16 +2156,13 @@ int tipc_nl_node_dump_monitor(struct sk_ msg.seq = cb->nlh->nlmsg_seq;
rtnl_lock(); - for (i = prev_bearer; i < MAX_BEARERS; i++) { - prev_bearer = i; + for (bearer_id = prev_bearer; bearer_id < MAX_BEARERS; bearer_id++) { err = __tipc_nl_add_monitor(net, &msg, prev_bearer); if (err) - goto out; + break; } - -out: rtnl_unlock(); - cb->args[0] = prev_bearer; + cb->args[0] = bearer_id;
return skb->len; }
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Srinath Mannam srinath.mannam@broadcom.com
[ Upstream commit 4555a5021fe88fc4f19ff53d1e58b410cf30a49a ]
Correct all SATA ahci and phy controller register addresses and interrupt lines to proper values.
Fixes: 344a2e514182 ("arm64: dts: Add SATA DT nodes for Stingray SoC")
Signed-off-by: Srinath Mannam srinath.mannam@broadcom.com Reviewed-by: Ray Jui ray.jui@broadcom.com Reviewed-by: Scott Branden scott.branden@broadcom.com Reviewed-by: Andrew Gospodarek andrew.gospodarek@broadcom.com Signed-off-by: Florian Fainelli f.fainelli@gmail.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/arm64/boot/dts/broadcom/stingray/stingray-sata.dtsi | 80 +++++++-------- 1 file changed, 40 insertions(+), 40 deletions(-)
--- a/arch/arm64/boot/dts/broadcom/stingray/stingray-sata.dtsi +++ b/arch/arm64/boot/dts/broadcom/stingray/stingray-sata.dtsi @@ -36,11 +36,11 @@ #size-cells = <1>; ranges = <0x0 0x0 0x67d00000 0x00800000>;
- sata0: ahci@210000 { + sata0: ahci@0 { compatible = "brcm,iproc-ahci", "generic-ahci"; - reg = <0x00210000 0x1000>; + reg = <0x00000000 0x1000>; reg-names = "ahci"; - interrupts = <GIC_SPI 339 IRQ_TYPE_LEVEL_HIGH>; + interrupts = <GIC_SPI 321 IRQ_TYPE_LEVEL_HIGH>; #address-cells = <1>; #size-cells = <0>; status = "disabled"; @@ -52,9 +52,9 @@ }; };
- sata_phy0: sata_phy@212100 { + sata_phy0: sata_phy@2100 { compatible = "brcm,iproc-sr-sata-phy"; - reg = <0x00212100 0x1000>; + reg = <0x00002100 0x1000>; reg-names = "phy"; #address-cells = <1>; #size-cells = <0>; @@ -66,11 +66,11 @@ }; };
- sata1: ahci@310000 { + sata1: ahci@10000 { compatible = "brcm,iproc-ahci", "generic-ahci"; - reg = <0x00310000 0x1000>; + reg = <0x00010000 0x1000>; reg-names = "ahci"; - interrupts = <GIC_SPI 347 IRQ_TYPE_LEVEL_HIGH>; + interrupts = <GIC_SPI 323 IRQ_TYPE_LEVEL_HIGH>; #address-cells = <1>; #size-cells = <0>; status = "disabled"; @@ -82,9 +82,9 @@ }; };
- sata_phy1: sata_phy@312100 { + sata_phy1: sata_phy@12100 { compatible = "brcm,iproc-sr-sata-phy"; - reg = <0x00312100 0x1000>; + reg = <0x00012100 0x1000>; reg-names = "phy"; #address-cells = <1>; #size-cells = <0>; @@ -96,11 +96,11 @@ }; };
- sata2: ahci@120000 { + sata2: ahci@20000 { compatible = "brcm,iproc-ahci", "generic-ahci"; - reg = <0x00120000 0x1000>; + reg = <0x00020000 0x1000>; reg-names = "ahci"; - interrupts = <GIC_SPI 333 IRQ_TYPE_LEVEL_HIGH>; + interrupts = <GIC_SPI 325 IRQ_TYPE_LEVEL_HIGH>; #address-cells = <1>; #size-cells = <0>; status = "disabled"; @@ -112,9 +112,9 @@ }; };
- sata_phy2: sata_phy@122100 { + sata_phy2: sata_phy@22100 { compatible = "brcm,iproc-sr-sata-phy"; - reg = <0x00122100 0x1000>; + reg = <0x00022100 0x1000>; reg-names = "phy"; #address-cells = <1>; #size-cells = <0>; @@ -126,11 +126,11 @@ }; };
- sata3: ahci@130000 { + sata3: ahci@30000 { compatible = "brcm,iproc-ahci", "generic-ahci"; - reg = <0x00130000 0x1000>; + reg = <0x00030000 0x1000>; reg-names = "ahci"; - interrupts = <GIC_SPI 335 IRQ_TYPE_LEVEL_HIGH>; + interrupts = <GIC_SPI 327 IRQ_TYPE_LEVEL_HIGH>; #address-cells = <1>; #size-cells = <0>; status = "disabled"; @@ -142,9 +142,9 @@ }; };
- sata_phy3: sata_phy@132100 { + sata_phy3: sata_phy@32100 { compatible = "brcm,iproc-sr-sata-phy"; - reg = <0x00132100 0x1000>; + reg = <0x00032100 0x1000>; reg-names = "phy"; #address-cells = <1>; #size-cells = <0>; @@ -156,11 +156,11 @@ }; };
- sata4: ahci@330000 { + sata4: ahci@100000 { compatible = "brcm,iproc-ahci", "generic-ahci"; - reg = <0x00330000 0x1000>; + reg = <0x00100000 0x1000>; reg-names = "ahci"; - interrupts = <GIC_SPI 351 IRQ_TYPE_LEVEL_HIGH>; + interrupts = <GIC_SPI 329 IRQ_TYPE_LEVEL_HIGH>; #address-cells = <1>; #size-cells = <0>; status = "disabled"; @@ -172,9 +172,9 @@ }; };
- sata_phy4: sata_phy@332100 { + sata_phy4: sata_phy@102100 { compatible = "brcm,iproc-sr-sata-phy"; - reg = <0x00332100 0x1000>; + reg = <0x00102100 0x1000>; reg-names = "phy"; #address-cells = <1>; #size-cells = <0>; @@ -186,11 +186,11 @@ }; };
- sata5: ahci@400000 { + sata5: ahci@110000 { compatible = "brcm,iproc-ahci", "generic-ahci"; - reg = <0x00400000 0x1000>; + reg = <0x00110000 0x1000>; reg-names = "ahci"; - interrupts = <GIC_SPI 353 IRQ_TYPE_LEVEL_HIGH>; + interrupts = <GIC_SPI 331 IRQ_TYPE_LEVEL_HIGH>; #address-cells = <1>; #size-cells = <0>; status = "disabled"; @@ -202,9 +202,9 @@ }; };
- sata_phy5: sata_phy@402100 { + sata_phy5: sata_phy@112100 { compatible = "brcm,iproc-sr-sata-phy"; - reg = <0x00402100 0x1000>; + reg = <0x00112100 0x1000>; reg-names = "phy"; #address-cells = <1>; #size-cells = <0>; @@ -216,11 +216,11 @@ }; };
- sata6: ahci@410000 { + sata6: ahci@120000 { compatible = "brcm,iproc-ahci", "generic-ahci"; - reg = <0x00410000 0x1000>; + reg = <0x00120000 0x1000>; reg-names = "ahci"; - interrupts = <GIC_SPI 355 IRQ_TYPE_LEVEL_HIGH>; + interrupts = <GIC_SPI 333 IRQ_TYPE_LEVEL_HIGH>; #address-cells = <1>; #size-cells = <0>; status = "disabled"; @@ -232,9 +232,9 @@ }; };
- sata_phy6: sata_phy@412100 { + sata_phy6: sata_phy@122100 { compatible = "brcm,iproc-sr-sata-phy"; - reg = <0x00412100 0x1000>; + reg = <0x00122100 0x1000>; reg-names = "phy"; #address-cells = <1>; #size-cells = <0>; @@ -246,11 +246,11 @@ }; };
- sata7: ahci@420000 { + sata7: ahci@130000 { compatible = "brcm,iproc-ahci", "generic-ahci"; - reg = <0x00420000 0x1000>; + reg = <0x00130000 0x1000>; reg-names = "ahci"; - interrupts = <GIC_SPI 357 IRQ_TYPE_LEVEL_HIGH>; + interrupts = <GIC_SPI 335 IRQ_TYPE_LEVEL_HIGH>; #address-cells = <1>; #size-cells = <0>; status = "disabled"; @@ -262,9 +262,9 @@ }; };
- sata_phy7: sata_phy@422100 { + sata_phy7: sata_phy@132100 { compatible = "brcm,iproc-sr-sata-phy"; - reg = <0x00422100 0x1000>; + reg = <0x00132100 0x1000>; reg-names = "phy"; #address-cells = <1>; #size-cells = <0>;
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Chris Leech cleech@redhat.com
[ Upstream commit af17092810a887178195276255b7b31f8fbe7dbe ]
Instead of always multicasting responses, send a unicast netlink message directed at the correct pid. This will be needed if we ever want to support multiple userspace processes interacting with the kernel over iSCSI netlink simultaneously. Limitations can currently be seen if you attempt to run multiple iscsistart commands in parallel.
We've fixed up the userspace issues in iscsistart that prevented multiple instances from running, so now attempts to speed up booting by bringing up multiple iscsi sessions at once in the initramfs are just running into misrouted responses that this fixes.
Signed-off-by: Chris Leech cleech@redhat.com Reviewed-by: Lee Duncan lduncan@suse.com Signed-off-by: Martin K. Petersen martin.petersen@oracle.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/scsi/scsi_transport_iscsi.c | 29 ++++++++++++++++++----------- 1 file changed, 18 insertions(+), 11 deletions(-)
--- a/drivers/scsi/scsi_transport_iscsi.c +++ b/drivers/scsi/scsi_transport_iscsi.c @@ -2322,6 +2322,12 @@ iscsi_multicast_skb(struct sk_buff *skb, return nlmsg_multicast(nls, skb, 0, group, gfp); }
+static int +iscsi_unicast_skb(struct sk_buff *skb, u32 portid) +{ + return nlmsg_unicast(nls, skb, portid); +} + int iscsi_recv_pdu(struct iscsi_cls_conn *conn, struct iscsi_hdr *hdr, char *data, uint32_t data_size) { @@ -2524,14 +2530,11 @@ void iscsi_ping_comp_event(uint32_t host EXPORT_SYMBOL_GPL(iscsi_ping_comp_event);
static int -iscsi_if_send_reply(uint32_t group, int seq, int type, int done, int multi, - void *payload, int size) +iscsi_if_send_reply(u32 portid, int type, void *payload, int size) { struct sk_buff *skb; struct nlmsghdr *nlh; int len = nlmsg_total_size(size); - int flags = multi ? NLM_F_MULTI : 0; - int t = done ? NLMSG_DONE : type;
skb = alloc_skb(len, GFP_ATOMIC); if (!skb) { @@ -2539,10 +2542,9 @@ iscsi_if_send_reply(uint32_t group, int return -ENOMEM; }
- nlh = __nlmsg_put(skb, 0, 0, t, (len - sizeof(*nlh)), 0); - nlh->nlmsg_flags = flags; + nlh = __nlmsg_put(skb, 0, 0, type, (len - sizeof(*nlh)), 0); memcpy(nlmsg_data(nlh), payload, size); - return iscsi_multicast_skb(skb, group, GFP_ATOMIC); + return iscsi_unicast_skb(skb, portid); }
static int @@ -3470,6 +3472,7 @@ static int iscsi_if_recv_msg(struct sk_buff *skb, struct nlmsghdr *nlh, uint32_t *group) { int err = 0; + u32 portid; struct iscsi_uevent *ev = nlmsg_data(nlh); struct iscsi_transport *transport = NULL; struct iscsi_internal *priv; @@ -3490,10 +3493,12 @@ iscsi_if_recv_msg(struct sk_buff *skb, s if (!try_module_get(transport->owner)) return -EINVAL;
+ portid = NETLINK_CB(skb).portid; + switch (nlh->nlmsg_type) { case ISCSI_UEVENT_CREATE_SESSION: err = iscsi_if_create_session(priv, ep, ev, - NETLINK_CB(skb).portid, + portid, ev->u.c_session.initial_cmdsn, ev->u.c_session.cmds_max, ev->u.c_session.queue_depth); @@ -3506,7 +3511,7 @@ iscsi_if_recv_msg(struct sk_buff *skb, s }
err = iscsi_if_create_session(priv, ep, ev, - NETLINK_CB(skb).portid, + portid, ev->u.c_bound_session.initial_cmdsn, ev->u.c_bound_session.cmds_max, ev->u.c_bound_session.queue_depth); @@ -3664,6 +3669,8 @@ iscsi_if_recv_msg(struct sk_buff *skb, s static void iscsi_if_rx(struct sk_buff *skb) { + u32 portid = NETLINK_CB(skb).portid; + mutex_lock(&rx_queue_mutex); while (skb->len >= NLMSG_HDRLEN) { int err; @@ -3699,8 +3706,8 @@ iscsi_if_rx(struct sk_buff *skb) break; if (ev->type == ISCSI_UEVENT_GET_CHAP && !err) break; - err = iscsi_if_send_reply(group, nlh->nlmsg_seq, - nlh->nlmsg_type, 0, 0, ev, sizeof(*ev)); + err = iscsi_if_send_reply(portid, nlh->nlmsg_type, + ev, sizeof(*ev)); } while (err < 0 && err != -ECONNREFUSED && err != -ESRCH); skb_pull(skb, rlen); }
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Vinson Lee vlee@freedesktop.org
[ Upstream commit fb1633d56b0025233ed3dc49b44544748d509d9d ]
Fixes: 2d2c2331673c ("scsi: megaraid_sas: modified few prints in OCR and IOC INIT path") Signed-off-by: Vinson Lee vlee@freedesktop.org Acked-by: Shivasharan S shivasharan.srikanteshwara@broadcom.com Signed-off-by: Martin K. Petersen martin.petersen@oracle.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/scsi/megaraid/megaraid_sas_fusion.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-)
--- a/drivers/scsi/megaraid/megaraid_sas_fusion.c +++ b/drivers/scsi/megaraid/megaraid_sas_fusion.c @@ -1124,12 +1124,12 @@ megasas_ioc_init_fusion(struct megasas_i goto fail_fw_init; }
- ret = 0; + return 0;
fail_fw_init: dev_err(&instance->pdev->dev, - "Init cmd return status %s for SCSI host %d\n", - ret ? "FAILED" : "SUCCESS", instance->host->host_no); + "Init cmd return status FAILED for SCSI host %d\n", + instance->host->host_no);
return ret; }
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Ming Lei ming.lei@redhat.com
[ Upstream commit 8e1ceafe50ec4d1bcfae154dd70e7cb6946a6177 ]
When the current page can't be added to bio, one new bio should be created for adding this page again, instead of ignoring this page.
This patch fixes kernel crash with iscsi target and dvd, as reported by Wakko.
Cc: Wakko Warner wakko@animx.eu.org Cc: Bart Van Assche Bart.VanAssche@wdc.com Cc: target-devel@vger.kernel.org Cc: linux-scsi@vger.kernel.org Cc: "Nicholas A. Bellinger" nab@linux-iscsi.org Cc: Christoph Hellwig hch@lst.de Fixes: 84c8590646d5b35804 ("target: avoid accessing .bi_vcnt directly") Signed-off-by: Ming Lei ming.lei@redhat.com Reviewed-by: Christoph Hellwig hch@lst.de Signed-off-by: Martin K. Petersen martin.petersen@oracle.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/target/target_core_pscsi.c | 2 ++ 1 file changed, 2 insertions(+)
--- a/drivers/target/target_core_pscsi.c +++ b/drivers/target/target_core_pscsi.c @@ -890,6 +890,7 @@ pscsi_map_sg(struct se_cmd *cmd, struct bytes = min(bytes, data_len);
if (!bio) { +new_bio: nr_vecs = min_t(int, BIO_MAX_PAGES, nr_pages); nr_pages -= nr_vecs; /* @@ -931,6 +932,7 @@ pscsi_map_sg(struct se_cmd *cmd, struct * be allocated with pscsi_get_bio() above. */ bio = NULL; + goto new_bio; }
data_len -= bytes;
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Pablo Neira Ayuso pablo@netfilter.org
[ Upstream commit 39f2ff0816e5421476c2bc538b68b4bb0708a78e ]
Move these options inside the scope of the 'if' NF_TABLES and NF_TABLES_IPV6 dependencies. This patch fixes:
net/ipv6/netfilter/nft_chain_nat_ipv6.o: In function `nft_nat_do_chain':
net/ipv6/netfilter/nft_chain_nat_ipv6.c:37: undefined reference to `nft_do_chain'
net/ipv6/netfilter/nft_chain_nat_ipv6.o: In function `nft_chain_nat_ipv6_exit':
net/ipv6/netfilter/nft_chain_nat_ipv6.c:94: undefined reference to `nft_unregister_chain_type'
net/ipv6/netfilter/nft_chain_nat_ipv6.o: In function `nft_chain_nat_ipv6_init':
net/ipv6/netfilter/nft_chain_nat_ipv6.c:87: undefined reference to `nft_register_chain_type'
that happens with:
CONFIG_NF_TABLES=m CONFIG_NFT_CHAIN_NAT_IPV6=y
Fixes: 02c7b25e5f54 ("netfilter: nf_tables: build-in filter chain type") Reported-by: kbuild test robot lkp@intel.com Signed-off-by: Pablo Neira Ayuso pablo@netfilter.org Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- net/ipv6/netfilter/Kconfig | 55 ++++++++++++++++++++++----------------------- 1 file changed, 28 insertions(+), 27 deletions(-)
--- a/net/ipv6/netfilter/Kconfig +++ b/net/ipv6/netfilter/Kconfig @@ -48,6 +48,34 @@ config NFT_CHAIN_ROUTE_IPV6 fields such as the source, destination, flowlabel, hop-limit and the packet mark.
+if NF_NAT_IPV6 + +config NFT_CHAIN_NAT_IPV6 + tristate "IPv6 nf_tables nat chain support" + help + This option enables the "nat" chain for IPv6 in nf_tables. This + chain type is used to perform Network Address Translation (NAT) + packet transformations such as the source, destination address and + source and destination ports. + +config NFT_MASQ_IPV6 + tristate "IPv6 masquerade support for nf_tables" + depends on NFT_MASQ + select NF_NAT_MASQUERADE_IPV6 + help + This is the expression that provides IPv4 masquerading support for + nf_tables. + +config NFT_REDIR_IPV6 + tristate "IPv6 redirect support for nf_tables" + depends on NFT_REDIR + select NF_NAT_REDIRECT + help + This is the expression that provides IPv4 redirect support for + nf_tables. + +endif # NF_NAT_IPV6 + config NFT_REJECT_IPV6 select NF_REJECT_IPV6 default NFT_REJECT @@ -107,39 +135,12 @@ config NF_NAT_IPV6
if NF_NAT_IPV6
-config NFT_CHAIN_NAT_IPV6 - depends on NF_TABLES_IPV6 - tristate "IPv6 nf_tables nat chain support" - help - This option enables the "nat" chain for IPv6 in nf_tables. This - chain type is used to perform Network Address Translation (NAT) - packet transformations such as the source, destination address and - source and destination ports. - config NF_NAT_MASQUERADE_IPV6 tristate "IPv6 masquerade support" help This is the kernel functionality to provide NAT in the masquerade flavour (automatic source address selection) for IPv6.
-config NFT_MASQ_IPV6 - tristate "IPv6 masquerade support for nf_tables" - depends on NF_TABLES_IPV6 - depends on NFT_MASQ - select NF_NAT_MASQUERADE_IPV6 - help - This is the expression that provides IPv4 masquerading support for - nf_tables. - -config NFT_REDIR_IPV6 - tristate "IPv6 redirect support for nf_tables" - depends on NF_TABLES_IPV6 - depends on NFT_REDIR - select NF_NAT_REDIRECT - help - This is the expression that provides IPv4 redirect support for - nf_tables. - endif # NF_NAT_IPV6
config IP6_NF_IPTABLES
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Taehee Yoo ap420073@gmail.com
[ Upstream commit d71efb599ad42ef1e564c652d8084252bdc85edf ]
When chain name is changed, nft_chain_commit_update is called. In the nft_chain_commit_update, trans->ctx.chain->name has old chain name and nft_trans_chain_name(trans) has new chain name. If new chain name is longer than old chain name, KASAN warns slab-out-of-bounds.
[ 175.015012] BUG: KASAN: slab-out-of-bounds in strcpy+0x9e/0xb0 [ 175.022735] Write of size 1 at addr ffff880114e022da by task iptables-compat/1458
[ 175.031353] CPU: 0 PID: 1458 Comm: iptables-compat Not tainted 4.16.0-rc7+ #146 [ 175.031353] Hardware name: To be filled by O.E.M. To be filled by O.E.M./Aptio CRB, BIOS 5.6.5 07/08/2015 [ 175.031353] Call Trace: [ 175.031353] dump_stack+0x68/0xa0 [ 175.031353] print_address_description+0xd0/0x260 [ 175.031353] ? strcpy+0x9e/0xb0 [ 175.031353] kasan_report+0x234/0x350 [ 175.031353] __asan_report_store1_noabort+0x1c/0x20 [ 175.031353] strcpy+0x9e/0xb0 [ 175.031353] nf_tables_commit+0x1ccc/0x2990 [ 175.031353] nfnetlink_rcv+0x141e/0x16c0 [ 175.031353] ? nfnetlink_net_init+0x150/0x150 [ 175.031353] ? lock_acquire+0x370/0x370 [ 175.031353] ? lock_acquire+0x370/0x370 [ 175.031353] netlink_unicast+0x444/0x640 [ 175.031353] ? netlink_attachskb+0x700/0x700 [ 175.031353] ? _copy_from_iter_full+0x180/0x740 [ 175.031353] ? kasan_check_write+0x14/0x20 [ 175.031353] ? _copy_from_user+0x9b/0xd0 [ 175.031353] netlink_sendmsg+0x845/0xc70 [ ... ]
Steps to reproduce: iptables-compat -N 1 iptables-compat -E 1 aaaaaaaaa
Signed-off-by: Taehee Yoo ap420073@gmail.com Signed-off-by: Pablo Neira Ayuso pablo@netfilter.org Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- net/netfilter/nf_tables_api.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/net/netfilter/nf_tables_api.c +++ b/net/netfilter/nf_tables_api.c @@ -5741,7 +5741,7 @@ static void nft_chain_commit_update(stru struct nft_base_chain *basechain;
if (nft_trans_chain_name(trans)) - strcpy(trans->ctx.chain->name, nft_trans_chain_name(trans)); + swap(trans->ctx.chain->name, nft_trans_chain_name(trans));
if (!nft_is_base_chain(trans->ctx.chain)) return;
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Srinivas Kandagatla srinivas.kandagatla@linaro.org
[ Upstream commit a8419a0cd98ddf628a9e38a92110af7cc650dde7 ]
As snd_soc_jack_report() can sleep, move handling of mbhc events to a thread context rather than in interrupt context.
Fixes: de66b3455023 ('ASoC: codecs: msm8916-wcd-analog: add MBHC support') Reported-by: Bjorn Andersson bjorn.andersson@linaro.org Signed-off-by: Srinivas Kandagatla srinivas.kandagatla@linaro.org Signed-off-by: Mark Brown broonie@kernel.org Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- sound/soc/codecs/msm8916-wcd-analog.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-)
--- a/sound/soc/codecs/msm8916-wcd-analog.c +++ b/sound/soc/codecs/msm8916-wcd-analog.c @@ -1185,7 +1185,8 @@ static int pm8916_wcd_analog_spmi_probe( return irq; }
- ret = devm_request_irq(dev, irq, pm8916_mbhc_switch_irq_handler, + ret = devm_request_threaded_irq(dev, irq, NULL, + pm8916_mbhc_switch_irq_handler, IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING | IRQF_ONESHOT, "mbhc switch irq", priv); @@ -1199,7 +1200,8 @@ static int pm8916_wcd_analog_spmi_probe( return irq; }
- ret = devm_request_irq(dev, irq, mbhc_btn_press_irq_handler, + ret = devm_request_threaded_irq(dev, irq, NULL, + mbhc_btn_press_irq_handler, IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING | IRQF_ONESHOT, "mbhc btn press irq", priv); @@ -1212,7 +1214,8 @@ static int pm8916_wcd_analog_spmi_probe( return irq; }
- ret = devm_request_irq(dev, irq, mbhc_btn_release_irq_handler, + ret = devm_request_threaded_irq(dev, irq, NULL, + mbhc_btn_release_irq_handler, IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING | IRQF_ONESHOT, "mbhc btn release irq", priv);
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Ben Hutchings ben.hutchings@codethink.co.uk
[ Upstream commit 3976626ea3d2011f8fd3f3a47070a8b792018253 ]
Commit 62e3a3e342af changed get_pages() to initialise msm_gem_object::pages before trying to initialise msm_gem_object::sgt, so that put_pages() would properly clean up pages in the failure case.
However, this means that put_pages() now needs to check that msm_gem_object::sgt is not null before trying to clean it up, and this check was only applied to part of the cleanup code. Move it all into the conditional block. (Strictly speaking we don't need to make the kfree() conditional, but since we can't avoid checking for null ourselves we may as well do so.)
Fixes: 62e3a3e342af ("drm/msm: fix leak in failed get_pages") Signed-off-by: Ben Hutchings ben.hutchings@codethink.co.uk Reviewed-by: Jordan Crouse jcrouse@codeaurora.org Signed-off-by: Rob Clark robdclark@gmail.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/gpu/drm/msm/msm_gem.c | 20 +++++++++++--------- 1 file changed, 11 insertions(+), 9 deletions(-)
--- a/drivers/gpu/drm/msm/msm_gem.c +++ b/drivers/gpu/drm/msm/msm_gem.c @@ -132,17 +132,19 @@ static void put_pages(struct drm_gem_obj struct msm_gem_object *msm_obj = to_msm_bo(obj);
if (msm_obj->pages) { - /* For non-cached buffers, ensure the new pages are clean - * because display controller, GPU, etc. are not coherent: - */ - if (msm_obj->flags & (MSM_BO_WC|MSM_BO_UNCACHED)) - dma_unmap_sg(obj->dev->dev, msm_obj->sgt->sgl, - msm_obj->sgt->nents, DMA_BIDIRECTIONAL); + if (msm_obj->sgt) { + /* For non-cached buffers, ensure the new + * pages are clean because display controller, + * GPU, etc. are not coherent: + */ + if (msm_obj->flags & (MSM_BO_WC|MSM_BO_UNCACHED)) + dma_unmap_sg(obj->dev->dev, msm_obj->sgt->sgl, + msm_obj->sgt->nents, + DMA_BIDIRECTIONAL);
- if (msm_obj->sgt) sg_free_table(msm_obj->sgt); - - kfree(msm_obj->sgt); + kfree(msm_obj->sgt); + }
if (use_pages(obj)) drm_gem_put_pages(obj, msm_obj->pages, true, false);
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Stefan Agner stefan@agner.ch
[ Upstream commit a4af89286f8fc382459308764ea05935dc477cdc ]
The function dsi_get_cmd_fmt returns enum dsi_cmd_dst_format, use the correct enum value also for MIPI_DSI_FMT_RGB666/_PACKED.
This has been discovered using clang: drivers/gpu/drm/msm/dsi/dsi_host.c:743:35: warning: implicit conversion from enumeration type 'enum dsi_vid_dst_format' to different enumeration type 'enum dsi_cmd_dst_format' [-Wenum-conversion] case MIPI_DSI_FMT_RGB666: return VID_DST_FORMAT_RGB666; ~~~~~~ ^~~~~~~~~~~~~~~~~~~~~
Signed-off-by: Stefan Agner stefan@agner.ch Reviewed-by: Archit Taneja architt@codeaurora.org Signed-off-by: Rob Clark robdclark@gmail.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/gpu/drm/msm/dsi/dsi_host.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/gpu/drm/msm/dsi/dsi_host.c +++ b/drivers/gpu/drm/msm/dsi/dsi_host.c @@ -740,7 +740,7 @@ static inline enum dsi_cmd_dst_format ds switch (mipi_fmt) { case MIPI_DSI_FMT_RGB888: return CMD_DST_FORMAT_RGB888; case MIPI_DSI_FMT_RGB666_PACKED: - case MIPI_DSI_FMT_RGB666: return VID_DST_FORMAT_RGB666; + case MIPI_DSI_FMT_RGB666: return CMD_DST_FORMAT_RGB666; case MIPI_DSI_FMT_RGB565: return CMD_DST_FORMAT_RGB565; default: return CMD_DST_FORMAT_RGB888; }
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Emil Velikov emil.velikov@collabora.com
[ Upstream commit 789d4c300e10eb2096ee83c3497118e67ccc951e ]
Currently the error pointer returned by msm_alloc_stolen_fb gets passed to drm_framebuffer_remove. The latter handles only NULL pointers, thus a nasty crash will occur.
Drop the unnecessary fail label and the associated checks - both err and fb will be set at this stage.
Cc: Rob Clark robdclark@gmail.com Cc: linux-arm-msm@vger.kernel.org Cc: dri-devel@lists.freedesktop.org Cc: freedreno@lists.freedesktop.org Signed-off-by: Emil Velikov emil.velikov@collabora.com Signed-off-by: Rob Clark robdclark@gmail.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/gpu/drm/msm/msm_fbdev.c | 11 ++--------- 1 file changed, 2 insertions(+), 9 deletions(-)
--- a/drivers/gpu/drm/msm/msm_fbdev.c +++ b/drivers/gpu/drm/msm/msm_fbdev.c @@ -92,8 +92,7 @@ static int msm_fbdev_create(struct drm_f
if (IS_ERR(fb)) { dev_err(dev->dev, "failed to allocate fb\n"); - ret = PTR_ERR(fb); - goto fail; + return PTR_ERR(fb); }
bo = msm_framebuffer_bo(fb, 0); @@ -151,13 +150,7 @@ static int msm_fbdev_create(struct drm_f
fail_unlock: mutex_unlock(&dev->struct_mutex); -fail: - - if (ret) { - if (fb) - drm_framebuffer_remove(fb); - } - + drm_framebuffer_remove(fb); return ret; }
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Jiang Biao jiang.biao2@zte.com.cn
[ Upstream commit 901932a3f9b2b80352896be946c6d577c0a9652c ]
The initializing of q->root_blkg is currently outside of queue lock and rcu, so the blkg may be destroied before the initializing, which may cause dangling/null references. On the other side, the destroys of blkg are protected by queue lock or rcu. Put the initializing inside the queue lock and rcu to make it safer.
Signed-off-by: Jiang Biao jiang.biao2@zte.com.cn Signed-off-by: Wen Yang wen.yang99@zte.com.cn CC: Tejun Heo tj@kernel.org CC: Jens Axboe axboe@kernel.dk Signed-off-by: Jens Axboe axboe@kernel.dk Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- block/blk-cgroup.c | 17 +++++++++++------ 1 file changed, 11 insertions(+), 6 deletions(-)
--- a/block/blk-cgroup.c +++ b/block/blk-cgroup.c @@ -1142,18 +1142,16 @@ int blkcg_init_queue(struct request_queu rcu_read_lock(); spin_lock_irq(q->queue_lock); blkg = blkg_create(&blkcg_root, q, new_blkg); + if (IS_ERR(blkg)) + goto err_unlock; + q->root_blkg = blkg; + q->root_rl.blkg = blkg; spin_unlock_irq(q->queue_lock); rcu_read_unlock();
if (preloaded) radix_tree_preload_end();
- if (IS_ERR(blkg)) - return PTR_ERR(blkg); - - q->root_blkg = blkg; - q->root_rl.blkg = blkg; - ret = blk_throtl_init(q); if (ret) { spin_lock_irq(q->queue_lock); @@ -1161,6 +1159,13 @@ int blkcg_init_queue(struct request_queu spin_unlock_irq(q->queue_lock); } return ret; + +err_unlock: + spin_unlock_irq(q->queue_lock); + rcu_read_unlock(); + if (preloaded) + radix_tree_preload_end(); + return PTR_ERR(blkg); }
/**
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: dann frazier dann.frazier@canonical.com
[ Upstream commit f4ea89110df237da6fbcaab76af431e85f07d904 ]
When longer interface names are used, the action names exposed in /proc/interrupts and /proc/irq/* maybe truncated. For example, when using the predictable name algorithm in systemd on a HiSilicon D05, I see:
ubuntu@d05-3:~$ grep enahisic2i0-tx /proc/interrupts | sed 's/.* //' enahisic2i0-tx0 enahisic2i0-tx1 [...] enahisic2i0-tx8 enahisic2i0-tx9 enahisic2i0-tx1 enahisic2i0-tx1 enahisic2i0-tx1 enahisic2i0-tx1 enahisic2i0-tx1 enahisic2i0-tx1
Increase the max ring name length to allow for an interface name of IFNAMSIZE. After this change, I now see:
$ grep enahisic2i0-tx /proc/interrupts | sed 's/.* //' enahisic2i0-tx0 enahisic2i0-tx1 enahisic2i0-tx2 [...] enahisic2i0-tx8 enahisic2i0-tx9 enahisic2i0-tx10 enahisic2i0-tx11 enahisic2i0-tx12 enahisic2i0-tx13 enahisic2i0-tx14 enahisic2i0-tx15
Signed-off-by: dann frazier dann.frazier@canonical.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/net/ethernet/hisilicon/hns/hnae.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/net/ethernet/hisilicon/hns/hnae.h +++ b/drivers/net/ethernet/hisilicon/hns/hnae.h @@ -87,7 +87,7 @@ do { \
#define HNAE_AE_REGISTER 0x1
-#define RCB_RING_NAME_LEN 16 +#define RCB_RING_NAME_LEN (IFNAMSIZ + 4)
#define HNAE_LOWEST_LATENCY_COAL_PARAM 30 #define HNAE_LOW_LATENCY_COAL_PARAM 80
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: David Howells dhowells@redhat.com
[ Upstream commit 660625922b3d9fcb376e5870299bc5c1086e1d32 ]
AFS server records get removed from the net->fs_servers tree when they're deleted, but not from the net->fs_addresses{4,6} lists, which can lead to an oops in afs_find_server() when a server record has been removed, for instance during rmmod.
Fix this by deleting the record from the by-address lists before posting it for RCU destruction.
The reason this hasn't been noticed before is that the fileserver keeps probing the local cache manager, thereby keeping the service record alive, so the oops would only happen when a fileserver eventually gets bored and stops pinging or if the module gets rmmod'd and a call comes in from the fileserver during the window between the server records being destroyed and the socket being closed.
The oops looks something like:
BUG: unable to handle kernel NULL pointer dereference at 000000000000001c ... Workqueue: kafsd afs_process_async_call [kafs] RIP: 0010:afs_find_server+0x271/0x36f [kafs] ... Call Trace: afs_deliver_cb_init_call_back_state3+0x1f2/0x21f [kafs] afs_deliver_to_call+0x1ee/0x5e8 [kafs] afs_process_async_call+0x5b/0xd0 [kafs] process_one_work+0x2c2/0x504 worker_thread+0x1d4/0x2ac kthread+0x11f/0x127 ret_from_fork+0x24/0x30
Fixes: d2ddc776a458 ("afs: Overhaul volume and server record caching and fileserver rotation") Signed-off-by: David Howells dhowells@redhat.com Signed-off-by: Linus Torvalds torvalds@linux-foundation.org Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- fs/afs/server.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-)
--- a/fs/afs/server.c +++ b/fs/afs/server.c @@ -426,8 +426,15 @@ static void afs_gc_servers(struct afs_ne } write_sequnlock(&net->fs_lock);
- if (deleted) + if (deleted) { + write_seqlock(&net->fs_addr_lock); + if (!hlist_unhashed(&server->addr4_link)) + hlist_del_rcu(&server->addr4_link); + if (!hlist_unhashed(&server->addr6_link)) + hlist_del_rcu(&server->addr6_link); + write_sequnlock(&net->fs_addr_lock); afs_destroy_server(net, server); + } } }
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: David Howells dhowells@redhat.com
[ Upstream commit a9e5b73288cf1595ac2e05cf1acd1924ceea05fa ]
In do_mount() when the MS_* flags are being converted to MNT_* flags, MS_RDONLY got accidentally convered to SB_RDONLY.
Undo this change.
Fixes: e462ec50cb5f ("VFS: Differentiate mount flags (MS_*) from internal superblock flags") Signed-off-by: David Howells dhowells@redhat.com Signed-off-by: Linus Torvalds torvalds@linux-foundation.org Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- fs/namespace.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/fs/namespace.c +++ b/fs/namespace.c @@ -2810,7 +2810,7 @@ long do_mount(const char *dev_name, cons mnt_flags |= MNT_NODIRATIME; if (flags & MS_STRICTATIME) mnt_flags &= ~(MNT_RELATIME | MNT_NOATIME); - if (flags & SB_RDONLY) + if (flags & MS_RDONLY) mnt_flags |= MNT_READONLY;
/* The default atime for remount is preservation */
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Baolin Wang baolin.wang@linaro.org
[ Upstream commit f76cdd00ef0e39d880139b074e3b247594dff95a ]
The read_persistent_clock() uses a timespec, which is not year 2038 safe on 32bit systems. On parisc architecture, we have implemented generic RTC drivers that can be used to compensate the system suspend time, but the RTC time can not represent the nanosecond resolution, so this patch just converts to read_persistent_clock64() with timespec64.
Signed-off-by: Baolin Wang baolin.wang@linaro.org Acked-by: Arnd Bergmann arnd@arndb.de Signed-off-by: Helge Deller deller@gmx.de Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/parisc/kernel/time.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/arch/parisc/kernel/time.c +++ b/arch/parisc/kernel/time.c @@ -205,7 +205,7 @@ static int __init rtc_init(void) device_initcall(rtc_init); #endif
-void read_persistent_clock(struct timespec *ts) +void read_persistent_clock64(struct timespec64 *ts) { static struct pdc_tod tod_data; if (pdc_tod_read(&tod_data) == 0) {
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Long Li longli@microsoft.com
[ Upstream commit f286299c1d0ba5e2ca0377610307b370fe178767 ]
Unlike SCSI and FC, we don't use multiple channels for IDE. Also fix the calculation for sub-channels.
Signed-off-by: Long Li longli@microsoft.com Reviewed-by: Michael Kelley mikelley@microsoft.com Signed-off-by: Martin K. Petersen martin.petersen@oracle.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/scsi/storvsc_drv.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-)
--- a/drivers/scsi/storvsc_drv.c +++ b/drivers/scsi/storvsc_drv.c @@ -1722,11 +1722,14 @@ static int storvsc_probe(struct hv_devic max_targets = STORVSC_MAX_TARGETS; max_channels = STORVSC_MAX_CHANNELS; /* - * On Windows8 and above, we support sub-channels for storage. + * On Windows8 and above, we support sub-channels for storage + * on SCSI and FC controllers. * The number of sub-channels offerred is based on the number of * VCPUs in the guest. */ - max_sub_channels = (num_cpus / storvsc_vcpus_per_sub_channel); + if (!dev_is_ide) + max_sub_channels = + (num_cpus - 1) / storvsc_vcpus_per_sub_channel; }
scsi_driver.can_queue = (max_outstanding_req_per_channel *
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Colin Ian King colin.king@canonical.com
[ Upstream commit 4bc83b3f272fe8f36450f9c003df49cf07ffe5fd ]
In the case when the phy_mask is bitwise anded with the phy_index bit is zero the continue statement currently jumps to the next iteration of the while loop and phy_index is never actually incremented, potentially causing an infinite loop if phy_index is less than SCI_MAX_PHS. Fix this by turning the while loop into a for loop.
Signed-off-by: Colin Ian King colin.king@canonical.com Signed-off-by: Martin K. Petersen martin.petersen@oracle.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/scsi/isci/port_config.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-)
--- a/drivers/scsi/isci/port_config.c +++ b/drivers/scsi/isci/port_config.c @@ -291,7 +291,7 @@ sci_mpc_agent_validate_phy_configuration * Note: We have not moved the current phy_index so we will actually * compare the startting phy with itself. * This is expected and required to add the phy to the port. */ - while (phy_index < SCI_MAX_PHYS) { + for (; phy_index < SCI_MAX_PHYS; phy_index++) { if ((phy_mask & (1 << phy_index)) == 0) continue; sci_phy_get_sas_address(&ihost->phys[phy_index], @@ -311,7 +311,6 @@ sci_mpc_agent_validate_phy_configuration &ihost->phys[phy_index]);
assigned_phy_mask |= (1 << phy_index); - phy_index++; }
}
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Huang Ying ying.huang@intel.com
[ Upstream commit 88c28f2469151b031f8cea9b28ed5be1b74a4172 ]
The swap offset reported by /proc/<pid>/pagemap may be not correct for PMD migration entries. If addr passed into pagemap_pmd_range() isn't aligned with PMD start address, the swap offset reported doesn't reflect this. And in the loop to report information of each sub-page, the swap offset isn't increased accordingly as that for PFN.
This may happen after opening /proc/<pid>/pagemap and seeking to a page whose address doesn't align with a PMD start address. I have verified this with a simple test program.
BTW: migration swap entries have PFN information, do we need to restrict whether to show them?
[akpm@linux-foundation.org: fix typo, per Huang, Ying] Link: http://lkml.kernel.org/r/20180408033737.10897-1-ying.huang@intel.com Signed-off-by: "Huang, Ying" ying.huang@intel.com Cc: Michal Hocko mhocko@suse.com Cc: "Kirill A. Shutemov" kirill.shutemov@linux.intel.com Cc: Andrei Vagin avagin@openvz.org Cc: Dan Williams dan.j.williams@intel.com Cc: "Jerome Glisse" jglisse@redhat.com Cc: Daniel Colascione dancol@google.com Cc: Zi Yan zi.yan@cs.rutgers.edu Cc: Naoya Horiguchi n-horiguchi@ah.jp.nec.com Cc: Alexey Dobriyan adobriyan@gmail.com Signed-off-by: Andrew Morton akpm@linux-foundation.org Signed-off-by: Linus Torvalds torvalds@linux-foundation.org Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- fs/proc/task_mmu.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-)
--- a/fs/proc/task_mmu.c +++ b/fs/proc/task_mmu.c @@ -1329,9 +1329,11 @@ static int pagemap_pmd_range(pmd_t *pmdp #ifdef CONFIG_ARCH_ENABLE_THP_MIGRATION else if (is_swap_pmd(pmd)) { swp_entry_t entry = pmd_to_swp_entry(pmd); + unsigned long offset = swp_offset(entry);
+ offset += (addr & ~PMD_MASK) >> PAGE_SHIFT; frame = swp_type(entry) | - (swp_offset(entry) << MAX_SWAPFILES_SHIFT); + (offset << MAX_SWAPFILES_SHIFT); flags |= PM_SWAP; if (pmd_swp_soft_dirty(pmd)) flags |= PM_SOFT_DIRTY; @@ -1351,6 +1353,8 @@ static int pagemap_pmd_range(pmd_t *pmdp break; if (pm->show_pfn && (flags & PM_PRESENT)) frame++; + else if (flags & PM_SWAP) + frame += (1 << MAX_SWAPFILES_SHIFT); } spin_unlock(ptl); return err;
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Alexey Dobriyan adobriyan@gmail.com
[ Upstream commit 2e0ad552f5f8cd0fda02bc45fcd2b89821c62fd1 ]
task_dump_owner() has the following code:
mm = task->mm; if (mm) { if (get_dumpable(mm) != SUID_DUMP_USER) { uid = ... } }
Check for ->mm is buggy -- kernel thread might be borrowing mm and inode will go to some random uid:gid pair.
Link: http://lkml.kernel.org/r/20180412220109.GA20978@avx2 Signed-off-by: Alexey Dobriyan adobriyan@gmail.com Cc: "Eric W. Biederman" ebiederm@xmission.com Signed-off-by: Andrew Morton akpm@linux-foundation.org Signed-off-by: Linus Torvalds torvalds@linux-foundation.org Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- fs/proc/base.c | 6 ++++++ 1 file changed, 6 insertions(+)
--- a/fs/proc/base.c +++ b/fs/proc/base.c @@ -1693,6 +1693,12 @@ void task_dump_owner(struct task_struct kuid_t uid; kgid_t gid;
+ if (unlikely(task->flags & PF_KTHREAD)) { + *ruid = GLOBAL_ROOT_UID; + *rgid = GLOBAL_ROOT_GID; + return; + } + /* Default to the tasks effective ownership */ rcu_read_lock(); cred = __task_cred(task);
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Alexey Dobriyan adobriyan@gmail.com
[ Upstream commit 9a1015b32faa7cebfe19663c886b0cfe90be1d49 ]
Commit 95846ecf9dac ("pid: replace pid bitmap implementation with IDR API") changed last field of /proc/loadavg (last pid allocated) to be off by one:
# unshare -p -f --mount-proc cat /proc/loadavg 0.00 0.00 0.00 1/60 2 <===
It should be 1 after first fork into pid namespace.
This is formally a regression but given how useless this field is I don't think anyone is affected.
Bug was found by /proc testsuite!
Link: http://lkml.kernel.org/r/20180413175408.GA27246@avx2 Fixes: 95846ecf9dac508 ("pid: replace pid bitmap implementation with IDR API") Signed-off-by: Alexey Dobriyan adobriyan@gmail.com Cc: "Eric W. Biederman" ebiederm@xmission.com Cc: Gargi Sharma gs051095@gmail.com Cc: Oleg Nesterov oleg@redhat.com Signed-off-by: Andrew Morton akpm@linux-foundation.org Signed-off-by: Linus Torvalds torvalds@linux-foundation.org Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/powerpc/platforms/cell/spufs/sched.c | 2 +- fs/proc/loadavg.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-)
--- a/arch/powerpc/platforms/cell/spufs/sched.c +++ b/arch/powerpc/platforms/cell/spufs/sched.c @@ -1093,7 +1093,7 @@ static int show_spu_loadavg(struct seq_f LOAD_INT(c), LOAD_FRAC(c), count_active_contexts(), atomic_read(&nr_spu_contexts), - idr_get_cursor(&task_active_pid_ns(current)->idr)); + idr_get_cursor(&task_active_pid_ns(current)->idr) - 1); return 0; }
--- a/fs/proc/loadavg.c +++ b/fs/proc/loadavg.c @@ -24,7 +24,7 @@ static int loadavg_proc_show(struct seq_ LOAD_INT(avnrun[1]), LOAD_FRAC(avnrun[1]), LOAD_INT(avnrun[2]), LOAD_FRAC(avnrun[2]), nr_running(), nr_threads, - idr_get_cursor(&task_active_pid_ns(current)->idr)); + idr_get_cursor(&task_active_pid_ns(current)->idr) - 1); return 0; }
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Dave Young dyoung@redhat.com
[ Upstream commit a841aa83dff0af75c88aa846ba610a8af4c5ee21 ]
Chun-Yi reported a kernel warning message below:
WARNING: CPU: 0 PID: 0 at ../mm/early_ioremap.c:182 early_iounmap+0x4f/0x12c() early_iounmap(ffffffffff200180, 00000118) [0] size not consistent 00000120
The problem is x86 kexec_file_load adds extra alignment to the efi memmap: in bzImage64_load():
efi_map_sz = efi_get_runtime_map_size(); efi_map_sz = ALIGN(efi_map_sz, 16);
And __efi_memmap_init maps with the size including the alignment bytes but efi_memmap_unmap use nr_maps * desc_size which does not include the extra bytes.
The alignment in kexec code is only needed for the kexec buffer internal use Actually kexec should pass exact size of the efi memmap to 2nd kernel.
Link: http://lkml.kernel.org/r/20180417083600.GA1972@dhcp-128-65.nay.redhat.com Signed-off-by: Dave Young dyoung@redhat.com Reported-by: joeyli jlee@suse.com Tested-by: Randy Wright rwright@hpe.com Signed-off-by: Andrew Morton akpm@linux-foundation.org Signed-off-by: Linus Torvalds torvalds@linux-foundation.org Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/x86/kernel/kexec-bzimage64.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-)
--- a/arch/x86/kernel/kexec-bzimage64.c +++ b/arch/x86/kernel/kexec-bzimage64.c @@ -398,11 +398,10 @@ static void *bzImage64_load(struct kimag * little bit simple */ efi_map_sz = efi_get_runtime_map_size(); - efi_map_sz = ALIGN(efi_map_sz, 16); params_cmdline_sz = sizeof(struct boot_params) + cmdline_len + MAX_ELFCOREHDR_STR_LEN; params_cmdline_sz = ALIGN(params_cmdline_sz, 16); - kbuf.bufsz = params_cmdline_sz + efi_map_sz + + kbuf.bufsz = params_cmdline_sz + ALIGN(efi_map_sz, 16) + sizeof(struct setup_data) + sizeof(struct efi_setup_data);
@@ -410,7 +409,7 @@ static void *bzImage64_load(struct kimag if (!params) return ERR_PTR(-ENOMEM); efi_map_offset = params_cmdline_sz; - efi_setup_data_offset = efi_map_offset + efi_map_sz; + efi_setup_data_offset = efi_map_offset + ALIGN(efi_map_sz, 16);
/* Copy setup header onto bootparams. Documentation/x86/boot.txt */ setup_header_size = 0x0202 + kernel[0x0201] - setup_hdr_offset;
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Minchan Kim minchan@kernel.org
[ Upstream commit c892fd82cc0632d425ae011a4dd75eb59e9f84ee ]
If there is heavy memory pressure, page allocation with __GFP_NOWAIT fails easily although it's order-0 request. I got below warning 9 times for normal boot.
<snip >: page allocation failure: order:0, mode:0x2200000(GFP_NOWAIT|__GFP_NOTRACK) .. snip .. Call trace: dump_backtrace+0x0/0x4 dump_stack+0xa4/0xc0 warn_alloc+0xd4/0x15c __alloc_pages_nodemask+0xf88/0x10fc alloc_slab_page+0x40/0x18c new_slab+0x2b8/0x2e0 ___slab_alloc+0x25c/0x464 __kmalloc+0x394/0x498 memcg_kmem_get_cache+0x114/0x2b8 kmem_cache_alloc+0x98/0x3e8 mmap_region+0x3bc/0x8c0 do_mmap+0x40c/0x43c vm_mmap_pgoff+0x15c/0x1e4 sys_mmap+0xb0/0xc8 el0_svc_naked+0x24/0x28 Mem-Info: active_anon:17124 inactive_anon:193 isolated_anon:0 active_file:7898 inactive_file:712955 isolated_file:55 unevictable:0 dirty:27 writeback:18 unstable:0 slab_reclaimable:12250 slab_unreclaimable:23334 mapped:19310 shmem:212 pagetables:816 bounce:0 free:36561 free_pcp:1205 free_cma:35615 Node 0 active_anon:68496kB inactive_anon:772kB active_file:31592kB inactive_file:2851820kB unevictable:0kB isolated(anon):0kB isolated(file):220kB mapped:77240kB dirty:108kB writeback:72kB shmem:848kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no DMA free:142188kB min:3056kB low:3820kB high:4584kB active_anon:10052kB inactive_anon:12kB active_file:312kB inactive_file:1412620kB unevictable:0kB writepending:0kB present:1781412kB managed:1604728kB mlocked:0kB slab_reclaimable:3592kB slab_unreclaimable:876kB kernel_stack:400kB pagetables:52kB bounce:0kB free_pcp:1436kB local_pcp:124kB free_cma:142492kB lowmem_reserve[]: 0 1842 1842 Normal free:4056kB min:4172kB low:5212kB high:6252kB active_anon:58376kB inactive_anon:760kB active_file:31348kB inactive_file:1439040kB unevictable:0kB writepending:180kB present:2000636kB managed:1923688kB mlocked:0kB slab_reclaimable:45408kB slab_unreclaimable:92460kB kernel_stack:9680kB pagetables:3212kB bounce:0kB free_pcp:3392kB local_pcp:688kB free_cma:0kB lowmem_reserve[]: 0 0 0 DMA: 0*4kB 0*8kB 1*16kB (C) 0*32kB 0*64kB 0*128kB 1*256kB (C) 1*512kB (C) 0*1024kB 1*2048kB (C) 34*4096kB (C) = 142096kB Normal: 228*4kB (UMEH) 172*8kB (UMH) 23*16kB (UH) 24*32kB (H) 5*64kB (H) 1*128kB (H) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 3872kB 721350 total pagecache pages 0 pages in swap cache Swap cache stats: add 0, delete 0, find 0/0 Free swap = 0kB Total swap = 0kB 945512 pages RAM 0 pages HighMem/MovableOnly 63408 pages reserved 51200 pages cma reserved
__memcg_schedule_kmem_cache_create() tries to create a shadow slab cache and the worker allocation failure is not really critical because we will retry on the next kmem charge. We might miss some charges but that shouldn't be critical. The excessive allocation failure report is not very helpful.
[mhocko@kernel.org: changelog update] Link: http://lkml.kernel.org/r/20180418022912.248417-1-minchan@kernel.org Signed-off-by: Minchan Kim minchan@kernel.org Acked-by: Johannes Weiner hannes@cmpxchg.org Reviewed-by: Andrew Morton akpm@linux-foundation.org Cc: Michal Hocko mhocko@kernel.org Cc: Vladimir Davydov vdavydov.dev@gmail.com Cc: Minchan Kim minchan@kernel.org Cc: Matthew Wilcox willy@infradead.org Signed-off-by: Andrew Morton akpm@linux-foundation.org Signed-off-by: Linus Torvalds torvalds@linux-foundation.org Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- mm/memcontrol.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/mm/memcontrol.c +++ b/mm/memcontrol.c @@ -2192,7 +2192,7 @@ static void __memcg_schedule_kmem_cache_ { struct memcg_kmem_cache_create_work *cw;
- cw = kmalloc(sizeof(*cw), GFP_NOWAIT); + cw = kmalloc(sizeof(*cw), GFP_NOWAIT | __GFP_NOWARN); if (!cw) return;
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Tobias Regnery tobias.regnery@gmail.com
[ Upstream commit 2f860691c2d2e3af1404ffeb2d22dd5c3dbca811 ]
There is the following build error with CONFIG_TYPEC_UCSI=m, CONFIG_FTRACE=y and CONFIG_TRACING=n:
ERROR: "__tracepoint_ucsi_command" [drivers/usb/typec/ucsi/typec_ucsi.ko] undefined! ERROR: "__tracepoint_ucsi_register_port" [drivers/usb/typec/ucsi/typec_ucsi.ko] undefined! ERROR: "__tracepoint_ucsi_notify" [drivers/usb/typec/ucsi/typec_ucsi.ko] undefined! ERROR: "__tracepoint_ucsi_reset_ppm" [drivers/usb/typec/ucsi/typec_ucsi.ko] undefined! ERROR: "__tracepoint_ucsi_run_command" [drivers/usb/typec/ucsi/typec_ucsi.ko] undefined! ERROR: "__tracepoint_ucsi_ack" [drivers/usb/typec/ucsi/typec_ucsi.ko] undefined! ERROR: "__tracepoint_ucsi_connector_change" [drivers/usb/typec/ucsi/typec_ucsi.ko] undefined!
This compination is quite hard to create because CONFIG_TRACING gets selected only in rare cases without CONFIG_FTRACE.
The build failure is caused by conditionally compiling trace.c depending on the wrong option CONFIG_FTRACE. Change this to depend on CONFIG_TRACING like other users of tracepoints do.
Fixes: c1b0bc2dabfa ("usb: typec: Add support for UCSI interface") Signed-off-by: Tobias Regnery tobias.regnery@gmail.com Acked-by: Heikki Krogerus heikki.krogerus@linux.intel.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/usb/typec/ucsi/Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/usb/typec/ucsi/Makefile +++ b/drivers/usb/typec/ucsi/Makefile @@ -5,6 +5,6 @@ obj-$(CONFIG_TYPEC_UCSI) += typec_ucsi.o
typec_ucsi-y := ucsi.o
-typec_ucsi-$(CONFIG_FTRACE) += trace.o +typec_ucsi-$(CONFIG_TRACING) += trace.o
obj-$(CONFIG_UCSI_ACPI) += ucsi_acpi.o
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Julian Wiedmann jwi@linux.vnet.ibm.com
[ Upstream commit bcacfcbc82b4235d280ed9b067aa4567f4a0c756 ]
When changing the MAC address on a L2 qeth device, current code first unregisters the old address, then registers the new one. If HW rejects the new address (or the IO fails), the device ends up with no operable address at all.
Re-order the code flow so that the old address only gets dropped if the new address was registered successfully. While at it, add logic to catch some corner-cases.
Signed-off-by: Julian Wiedmann jwi@linux.vnet.ibm.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/s390/net/qeth_l2_main.c | 55 ++++++++++++++++++++++------------------ 1 file changed, 31 insertions(+), 24 deletions(-)
--- a/drivers/s390/net/qeth_l2_main.c +++ b/drivers/s390/net/qeth_l2_main.c @@ -122,13 +122,10 @@ static int qeth_l2_send_setmac(struct qe QETH_CARD_TEXT(card, 2, "L2Setmac"); rc = qeth_l2_send_setdelmac(card, mac, IPA_CMD_SETVMAC); if (rc == 0) { - card->info.mac_bits |= QETH_LAYER2_MAC_REGISTERED; - ether_addr_copy(card->dev->dev_addr, mac); dev_info(&card->gdev->dev, - "MAC address %pM successfully registered on device %s\n", - card->dev->dev_addr, card->dev->name); + "MAC address %pM successfully registered on device %s\n", + mac, card->dev->name); } else { - card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED; switch (rc) { case -EEXIST: dev_warn(&card->gdev->dev, @@ -143,19 +140,6 @@ static int qeth_l2_send_setmac(struct qe return rc; }
-static int qeth_l2_send_delmac(struct qeth_card *card, __u8 *mac) -{ - int rc; - - QETH_CARD_TEXT(card, 2, "L2Delmac"); - if (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED)) - return 0; - rc = qeth_l2_send_setdelmac(card, mac, IPA_CMD_DELVMAC); - if (rc == 0) - card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED; - return rc; -} - static int qeth_l2_write_mac(struct qeth_card *card, u8 *mac) { enum qeth_ipa_cmds cmd = is_multicast_ether_addr_64bits(mac) ? @@ -522,6 +506,7 @@ static int qeth_l2_set_mac_address(struc { struct sockaddr *addr = p; struct qeth_card *card = dev->ml_priv; + u8 old_addr[ETH_ALEN]; int rc = 0;
QETH_CARD_TEXT(card, 3, "setmac"); @@ -533,14 +518,35 @@ static int qeth_l2_set_mac_address(struc return -EOPNOTSUPP; } QETH_CARD_HEX(card, 3, addr->sa_data, ETH_ALEN); + if (!is_valid_ether_addr(addr->sa_data)) + return -EADDRNOTAVAIL; + if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) { QETH_CARD_TEXT(card, 3, "setmcREC"); return -ERESTARTSYS; } - rc = qeth_l2_send_delmac(card, &card->dev->dev_addr[0]); - if (!rc || (rc == -ENOENT)) - rc = qeth_l2_send_setmac(card, addr->sa_data); - return rc ? -EINVAL : 0; + + if (!qeth_card_hw_is_reachable(card)) { + ether_addr_copy(dev->dev_addr, addr->sa_data); + return 0; + } + + /* don't register the same address twice */ + if (ether_addr_equal_64bits(dev->dev_addr, addr->sa_data) && + (card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED)) + return 0; + + /* add the new address, switch over, drop the old */ + rc = qeth_l2_send_setmac(card, addr->sa_data); + if (rc) + return rc; + ether_addr_copy(old_addr, dev->dev_addr); + ether_addr_copy(dev->dev_addr, addr->sa_data); + + if (card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED) + qeth_l2_remove_mac(card, old_addr); + card->info.mac_bits |= QETH_LAYER2_MAC_REGISTERED; + return 0; }
static void qeth_promisc_to_bridge(struct qeth_card *card) @@ -1067,8 +1073,9 @@ static int __qeth_l2_set_online(struct c goto out_remove; }
- if (card->info.type != QETH_CARD_TYPE_OSN) - qeth_l2_send_setmac(card, &card->dev->dev_addr[0]); + if (card->info.type != QETH_CARD_TYPE_OSN && + !qeth_l2_send_setmac(card, card->dev->dev_addr)) + card->info.mac_bits |= QETH_LAYER2_MAC_REGISTERED;
if (qeth_is_diagass_supported(card, QETH_DIAGS_CMD_TRAP)) { if (card->info.hwtrap &&
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Julian Wiedmann jwi@linux.vnet.ibm.com
[ Upstream commit db71bbbd11a4d314f0fa3fbf3369b71cf33ce33c ]
Submitting a cmd IO request (usually on the WRITE device, but for IDX also on the READ device) is currently done with ccw_device_start() and a manual timeout in the caller. On timeout, the caller cleans up the related resources (eg. IO buffer). But 1) the IO might still be active and utilize those resources, and 2) when the IO completes, qeth_irq() will attempt to clean up the same resources again.
Instead of introducing additional resource locking, switch to ccw_device_start_timeout() to ensure IO termination after timeout, and let the IRQ handler alone deal with cleaning up after a request.
This also removes a stray write->irq_pending reset from clear_ipacmd_list(). The routine doesn't terminate any pending IO on the WRITE device, so this should be handled properly via IO timeout in the IRQ handler.
Signed-off-by: Julian Wiedmann jwi@linux.vnet.ibm.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/s390/net/qeth_core_main.c | 51 +++++++++++++++++++------------------- drivers/s390/net/qeth_core_mpc.h | 12 ++++++++ drivers/s390/net/qeth_l2_main.c | 4 +- 3 files changed, 40 insertions(+), 27 deletions(-)
--- a/drivers/s390/net/qeth_core_main.c +++ b/drivers/s390/net/qeth_core_main.c @@ -706,7 +706,6 @@ void qeth_clear_ipacmd_list(struct qeth_ qeth_put_reply(reply); } spin_unlock_irqrestore(&card->lock, flags); - atomic_set(&card->write.irq_pending, 0); } EXPORT_SYMBOL_GPL(qeth_clear_ipacmd_list);
@@ -1101,14 +1100,9 @@ static void qeth_irq(struct ccw_device * { int rc; int cstat, dstat; + struct qeth_cmd_buffer *iob = NULL; struct qeth_channel *channel; struct qeth_card *card; - struct qeth_cmd_buffer *iob; - - if (__qeth_check_irb_error(cdev, intparm, irb)) - return; - cstat = irb->scsw.cmd.cstat; - dstat = irb->scsw.cmd.dstat;
card = CARD_FROM_CDEV(cdev); if (!card) @@ -1126,6 +1120,19 @@ static void qeth_irq(struct ccw_device * channel = &card->data; QETH_CARD_TEXT(card, 5, "data"); } + + if (qeth_intparm_is_iob(intparm)) + iob = (struct qeth_cmd_buffer *) __va((addr_t)intparm); + + if (__qeth_check_irb_error(cdev, intparm, irb)) { + /* IO was terminated, free its resources. */ + if (iob) + qeth_release_buffer(iob->channel, iob); + atomic_set(&channel->irq_pending, 0); + wake_up(&card->wait_q); + return; + } + atomic_set(&channel->irq_pending, 0);
if (irb->scsw.cmd.fctl & (SCSW_FCTL_CLEAR_FUNC)) @@ -1149,6 +1156,10 @@ static void qeth_irq(struct ccw_device * /* we don't have to handle this further */ intparm = 0; } + + cstat = irb->scsw.cmd.cstat; + dstat = irb->scsw.cmd.dstat; + if ((dstat & DEV_STAT_UNIT_EXCEP) || (dstat & DEV_STAT_UNIT_CHECK) || (cstat)) { @@ -1187,11 +1198,8 @@ static void qeth_irq(struct ccw_device * channel->state == CH_STATE_UP) __qeth_issue_next_read(card);
- if (intparm) { - iob = (struct qeth_cmd_buffer *) __va((addr_t)intparm); - if (iob->callback) - iob->callback(iob->channel, iob); - } + if (iob && iob->callback) + iob->callback(iob->channel, iob);
out: wake_up(&card->wait_q); @@ -1862,8 +1870,8 @@ static int qeth_idx_activate_get_answer( atomic_cmpxchg(&channel->irq_pending, 0, 1) == 0); QETH_DBF_TEXT(SETUP, 6, "noirqpnd"); spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags); - rc = ccw_device_start(channel->ccwdev, - &channel->ccw, (addr_t) iob, 0, 0); + rc = ccw_device_start_timeout(channel->ccwdev, &channel->ccw, + (addr_t) iob, 0, 0, QETH_TIMEOUT); spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
if (rc) { @@ -1880,7 +1888,6 @@ static int qeth_idx_activate_get_answer( if (channel->state != CH_STATE_UP) { rc = -ETIME; QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc); - qeth_clear_cmd_buffers(channel); } else rc = 0; return rc; @@ -1934,8 +1941,8 @@ static int qeth_idx_activate_channel(str atomic_cmpxchg(&channel->irq_pending, 0, 1) == 0); QETH_DBF_TEXT(SETUP, 6, "noirqpnd"); spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags); - rc = ccw_device_start(channel->ccwdev, - &channel->ccw, (addr_t) iob, 0, 0); + rc = ccw_device_start_timeout(channel->ccwdev, &channel->ccw, + (addr_t) iob, 0, 0, QETH_TIMEOUT); spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
if (rc) { @@ -1956,7 +1963,6 @@ static int qeth_idx_activate_channel(str QETH_DBF_MESSAGE(2, "%s IDX activate timed out\n", dev_name(&channel->ccwdev->dev)); QETH_DBF_TEXT_(SETUP, 2, "2err%d", -ETIME); - qeth_clear_cmd_buffers(channel); return -ETIME; } return qeth_idx_activate_get_answer(channel, idx_reply_cb); @@ -2158,8 +2164,8 @@ int qeth_send_control_data(struct qeth_c
QETH_CARD_TEXT(card, 6, "noirqpnd"); spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags); - rc = ccw_device_start(card->write.ccwdev, &card->write.ccw, - (addr_t) iob, 0, 0); + rc = ccw_device_start_timeout(CARD_WDEV(card), &card->write.ccw, + (addr_t) iob, 0, 0, event_timeout); spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags); if (rc) { QETH_DBF_MESSAGE(2, "%s qeth_send_control_data: " @@ -2191,8 +2197,6 @@ int qeth_send_control_data(struct qeth_c } }
- if (reply->rc == -EIO) - goto error; rc = reply->rc; qeth_put_reply(reply); return rc; @@ -2203,9 +2207,6 @@ time_err: list_del_init(&reply->list); spin_unlock_irqrestore(&reply->card->lock, flags); atomic_inc(&reply->received); -error: - atomic_set(&card->write.irq_pending, 0); - qeth_release_buffer(iob->channel, iob); rc = reply->rc; qeth_put_reply(reply); return rc; --- a/drivers/s390/net/qeth_core_mpc.h +++ b/drivers/s390/net/qeth_core_mpc.h @@ -35,6 +35,18 @@ extern unsigned char IPA_PDU_HEADER[]; #define QETH_HALT_CHANNEL_PARM -11 #define QETH_RCD_PARM -12
+static inline bool qeth_intparm_is_iob(unsigned long intparm) +{ + switch (intparm) { + case QETH_CLEAR_CHANNEL_PARM: + case QETH_HALT_CHANNEL_PARM: + case QETH_RCD_PARM: + case 0: + return false; + } + return true; +} + /*****************************************************************************/ /* IP Assist related definitions */ /*****************************************************************************/ --- a/drivers/s390/net/qeth_l2_main.c +++ b/drivers/s390/net/qeth_l2_main.c @@ -1346,8 +1346,8 @@ static int qeth_osn_send_control_data(st qeth_prepare_control_data(card, len, iob); QETH_CARD_TEXT(card, 6, "osnoirqp"); spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags); - rc = ccw_device_start(card->write.ccwdev, &card->write.ccw, - (addr_t) iob, 0, 0); + rc = ccw_device_start_timeout(CARD_WDEV(card), &card->write.ccw, + (addr_t) iob, 0, 0, QETH_IPA_TIMEOUT); spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags); if (rc) { QETH_DBF_MESSAGE(2, "qeth_osn_send_control_data: "
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Julian Wiedmann jwi@linux.vnet.ibm.com
[ Upstream commit b7493e91c11a757cf0f8ab26989642ee4bb2c642 ]
For z/VM NICs, qeth needs to consider which of the three CCW devices in an MPC group it uses for requesting a managed MAC address.
On the Base device, the hypervisor returns a default MAC which is pre-assigned when creating the NIC (this MAC is also returned by the READ MAC primitive). Querying any other device results in the allocation of an additional MAC address.
For consistency with READ MAC and to avoid using up more addresses than necessary, it is preferable to use the NIC's default MAC. So switch the the diag26c over to using a NIC's Read device, which should always be identical to the Base device.
Fixes: ec61bd2fd2a2 ("s390/qeth: use diag26c to get MAC address on L2") Signed-off-by: Julian Wiedmann jwi@linux.vnet.ibm.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/s390/net/qeth_core_main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/s390/net/qeth_core_main.c +++ b/drivers/s390/net/qeth_core_main.c @@ -4839,7 +4839,7 @@ int qeth_vm_request_mac(struct qeth_card goto out; }
- ccw_device_get_id(CARD_DDEV(card), &id); + ccw_device_get_id(CARD_RDEV(card), &id); request->resp_buf_len = sizeof(*response); request->resp_version = DIAG26C_VERSION2; request->op_code = DIAG26C_GET_MAC;
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Chen Yu yu.c.chen@intel.com
[ Upstream commit 855c1c2fce8bdbd796cba1d1456ca8f0e876c2f1 ]
ThinkPad X1 Tablet(2016) is reported to have issues with the Low Power S0 Idle _DSM interface and since this machine model generally can do ACPI S3 just fine, and user would like to use S3 as default sleep model, add a blacklist entry to disable that interface for ThinkPad X1 Tablet(2016).
Link: https://bugzilla.kernel.org/show_bug.cgi?id=199057 Reported-and-tested-by: Robin Lee robinlee.sysu@gmail.com Signed-off-by: Chen Yu yu.c.chen@intel.com Signed-off-by: Rafael J. Wysocki rafael.j.wysocki@intel.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/acpi/sleep.c | 13 +++++++++++++ 1 file changed, 13 insertions(+)
--- a/drivers/acpi/sleep.c +++ b/drivers/acpi/sleep.c @@ -364,6 +364,19 @@ static const struct dmi_system_id acpisl DMI_MATCH(DMI_PRODUCT_NAME, "XPS 13 9360"), }, }, + /* + * ThinkPad X1 Tablet(2016) cannot do suspend-to-idle using + * the Low Power S0 Idle firmware interface (see + * https://bugzilla.kernel.org/show_bug.cgi?id=199057). + */ + { + .callback = init_no_lps0, + .ident = "ThinkPad X1 Tablet(2016)", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), + DMI_MATCH(DMI_PRODUCT_NAME, "20GGA00L00"), + }, + }, {}, };
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Mika Westerberg mika.westerberg@linux.intel.com
[ Upstream commit cc6a0e315a68e5db85bea347b0c5b0fe4a9a5904 ]
At least on one Dell system the PNP motherboard resources device includes resources used by WDAT table. Since PNP gets initialized before WDAT it results following error and no watchdog:
platform wdat_wdt: failed to claim resource 3: [io 0x046a-0x046c] ACPI: watchdog: Device creation failed: -16
Now, the PNP system driver is already accustomed with the situation that it cannot reserve all those motherboard resources because drivers using those might have reserved them already. In addition putting WDAT table resources under motherboard resources device makes sense in general.
Fix this by initializing WDAT right before PNP. This allows WDAT to reserve all its resources and still keeps PNP system driver happy.
Reported-by: Shubhrata.Priyadarsh@dell.com Reported-by: Takashi Iwai tiwai@suse.de Signed-off-by: Mika Westerberg mika.westerberg@linux.intel.com Acked-by: Guenter Roeck linux@roeck-us.net Signed-off-by: Rafael J. Wysocki rafael.j.wysocki@intel.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/acpi/scan.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/acpi/scan.c +++ b/drivers/acpi/scan.c @@ -2150,10 +2150,10 @@ int __init acpi_scan_init(void) acpi_cmos_rtc_init(); acpi_container_init(); acpi_memory_hotplug_init(); + acpi_watchdog_init(); acpi_pnp_init(); acpi_int340x_thermal_init(); acpi_amba_init(); - acpi_watchdog_init(); acpi_init_lpit();
acpi_scan_add_handler(&generic_device_handler);
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Geert Uytterhoeven geert+renesas@glider.be
[ Upstream commit 34df2466b48dfe258e14fe2a7bc4641416575ade ]
Signed-off-by: Geert Uytterhoeven geert+renesas@glider.be Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- Documentation/devicetree/bindings/serial/amlogic,meson-uart.txt | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/Documentation/devicetree/bindings/serial/amlogic,meson-uart.txt +++ b/Documentation/devicetree/bindings/serial/amlogic,meson-uart.txt @@ -21,7 +21,7 @@ Required properties: - interrupts : identifier to the device interrupt - clocks : a list of phandle + clock-specifier pairs, one for each entry in clock names. -- clocks-names : +- clock-names : * "xtal" for external xtal clock identifier * "pclk" for the bus core clock, either the clk81 clock or the gate clock * "baud" for the source of the baudrate generator, can be either the xtal
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Geert Uytterhoeven geert+renesas@glider.be
[ Upstream commit 17a16542b88e753cc3bd54cf30b74df3d547421e ]
Signed-off-by: Geert Uytterhoeven geert+renesas@glider.be Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- Documentation/devicetree/bindings/serial/mvebu-uart.txt | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/Documentation/devicetree/bindings/serial/mvebu-uart.txt +++ b/Documentation/devicetree/bindings/serial/mvebu-uart.txt @@ -24,7 +24,7 @@ Required properties: - Must contain two elements for the extended variant of the IP (marvell,armada-3700-uart-ext): "uart-tx" and "uart-rx", respectively the UART TX interrupt and the UART RX interrupt. A - corresponding interrupts-names property must be defined. + corresponding interrupt-names property must be defined. - For backward compatibility reasons, a single element interrupts property is also supported for the standard variant of the IP, containing only the UART sum interrupt. This form is deprecated
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Balbir Singh bsingharora@gmail.com
[ Upstream commit 7fd6641de28fe9b5bce0c38d2adee0a72a72619e ]
Don't do this via custom code, instead now that we have support in the arch hotplug/hotunplug code, rely on those routines to do the right thing.
The existing flush doesn't work because it uses ppc64_caches.l1d.size instead of ppc64_caches.l1d.line_size.
Fixes: 9d5171a8f248 ("powerpc/powernv: Enable removal of memory for in memory tracing") Signed-off-by: Balbir Singh bsingharora@gmail.com Reviewed-by: Rashmica Gupta rashmica.g@gmail.com Signed-off-by: Michael Ellerman mpe@ellerman.id.au Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/powerpc/platforms/powernv/memtrace.c | 17 ----------------- 1 file changed, 17 deletions(-)
--- a/arch/powerpc/platforms/powernv/memtrace.c +++ b/arch/powerpc/platforms/powernv/memtrace.c @@ -82,19 +82,6 @@ static const struct file_operations memt .open = simple_open, };
-static void flush_memory_region(u64 base, u64 size) -{ - unsigned long line_size = ppc64_caches.l1d.size; - u64 end = base + size; - u64 addr; - - base = round_down(base, line_size); - end = round_up(end, line_size); - - for (addr = base; addr < end; addr += line_size) - asm volatile("dcbf 0,%0" : "=r" (addr) :: "memory"); -} - static int check_memblock_online(struct memory_block *mem, void *arg) { if (mem->state != MEM_ONLINE) @@ -132,10 +119,6 @@ static bool memtrace_offline_pages(u32 n walk_memory_range(start_pfn, end_pfn, (void *)MEM_OFFLINE, change_memblock_state);
- /* RCU grace period? */ - flush_memory_region((u64)__va(start_pfn << PAGE_SHIFT), - nr_pages << PAGE_SHIFT); - lock_device_hotplug(); remove_memory(nid, start_pfn << PAGE_SHIFT, nr_pages << PAGE_SHIFT); unlock_device_hotplug();
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Jingju Hou Jingju.Hou@synaptics.com
[ Upstream commit b6a930fa88083b41d26ddf1cab95cbd740936c22 ]
If WOL event happened once, the LED[2] interrupt pin will not be cleared unless we read the CSISR register. If interrupts are in use, the normal interrupt handling will clear the WOL event. Let's clear the WOL event before enabling it if !phy_interrupt_is_valid().
Signed-off-by: Jingju Hou Jingju.Hou@synaptics.com Signed-off-by: Jisheng Zhang Jisheng.Zhang@synaptics.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/net/phy/marvell.c | 9 +++++++++ 1 file changed, 9 insertions(+)
--- a/drivers/net/phy/marvell.c +++ b/drivers/net/phy/marvell.c @@ -1377,6 +1377,15 @@ static int m88e1318_set_wol(struct phy_d if (err < 0) goto error;
+ /* If WOL event happened once, the LED[2] interrupt pin + * will not be cleared unless we reading the interrupt status + * register. If interrupts are in use, the normal interrupt + * handling will clear the WOL event. Clear the WOL event + * before enabling it if !phy_interrupt_is_valid() + */ + if (!phy_interrupt_is_valid(phydev)) + phy_read(phydev, MII_M1011_IEVENT); + /* Enable the WOL interrupt */ err = __phy_modify(phydev, MII_88E1318S_PHY_CSIER, 0, MII_88E1318S_PHY_CSIER_WOL_EIE);
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Sekhar Nori nsekhar@ti.com
[ Upstream commit 94a82284ad4711b7f9fd78981fdc7a1cb645030b ]
Remove unused #address-cells and #size-cells from pinmux node. This fixes W=1 warnings of the type:
arch/arm/boot/dts/da850-lcdk.dtb: Warning (avoid_unnecessary_addr_size): /soc@1c00000/pinmux@14120: unnecessary #address-cells/#size-cells without "ranges" or child "reg" property
Tested on DA850 LCDK by checking output of:
/sys/kernel/debug/pinctrl/1c14120.pinmux-pinctrl-single/pins
before and after the change.
Reviewed-by: David Lechner david@lechnology.com Signed-off-by: Sekhar Nori nsekhar@ti.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/arm/boot/dts/da850.dtsi | 2 -- 1 file changed, 2 deletions(-)
--- a/arch/arm/boot/dts/da850.dtsi +++ b/arch/arm/boot/dts/da850.dtsi @@ -46,8 +46,6 @@ pmx_core: pinmux@14120 { compatible = "pinctrl-single"; reg = <0x14120 0x50>; - #address-cells = <1>; - #size-cells = <0>; #pinctrl-cells = <2>; pinctrl-single,bit-per-mux; pinctrl-single,register-width = <32>;
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Mika Westerberg mika.westerberg@linux.intel.com
[ Upstream commit a0a37862a4e1844793d39aca9ccb8fecbdcb8659 ]
WDAT table on Lenovo Z50-70 is using RTC SRAM (ports 0x70 and 0x71) to store state of the timer. This conflicts with Linux RTC driver (rtc-cmos.c) who fails to reserve those ports for itself preventing RTC from functioning. In addition the WDAT table seems not to be fully functional because it does not reset the system when the watchdog times out.
On this system iTCO_wdt works just fine so we simply prefer to use it instead of WDAT. This makes RTC working again and also results working watchdog via iTCO_wdt.
Reported-by: Peter Milley pbmilley@gmail.com Link: https://bugzilla.kernel.org/show_bug.cgi?id=199033 Signed-off-by: Mika Westerberg mika.westerberg@linux.intel.com Signed-off-by: Rafael J. Wysocki rafael.j.wysocki@intel.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/acpi/acpi_watchdog.c | 59 +++++++++++++++++++++++++++++++++++-------- 1 file changed, 49 insertions(+), 10 deletions(-)
--- a/drivers/acpi/acpi_watchdog.c +++ b/drivers/acpi/acpi_watchdog.c @@ -12,23 +12,64 @@ #define pr_fmt(fmt) "ACPI: watchdog: " fmt
#include <linux/acpi.h> +#include <linux/dmi.h> #include <linux/ioport.h> #include <linux/platform_device.h>
#include "internal.h"
+static const struct dmi_system_id acpi_watchdog_skip[] = { + { + /* + * On Lenovo Z50-70 there are two issues with the WDAT + * table. First some of the instructions use RTC SRAM + * to store persistent information. This does not work well + * with Linux RTC driver. Second, more important thing is + * that the instructions do not actually reset the system. + * + * On this particular system iTCO_wdt seems to work just + * fine so we prefer that over WDAT for now. + * + * See also https://bugzilla.kernel.org/show_bug.cgi?id=199033. + */ + .ident = "Lenovo Z50-70", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), + DMI_MATCH(DMI_PRODUCT_NAME, "20354"), + DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo Z50-70"), + }, + }, + {} +}; + +static const struct acpi_table_wdat *acpi_watchdog_get_wdat(void) +{ + const struct acpi_table_wdat *wdat = NULL; + acpi_status status; + + if (acpi_disabled) + return NULL; + + if (dmi_check_system(acpi_watchdog_skip)) + return NULL; + + status = acpi_get_table(ACPI_SIG_WDAT, 0, + (struct acpi_table_header **)&wdat); + if (ACPI_FAILURE(status)) { + /* It is fine if there is no WDAT */ + return NULL; + } + + return wdat; +} + /** * Returns true if this system should prefer ACPI based watchdog instead of * the native one (which are typically the same hardware). */ bool acpi_has_watchdog(void) { - struct acpi_table_header hdr; - - if (acpi_disabled) - return false; - - return ACPI_SUCCESS(acpi_get_table_header(ACPI_SIG_WDAT, 0, &hdr)); + return !!acpi_watchdog_get_wdat(); } EXPORT_SYMBOL_GPL(acpi_has_watchdog);
@@ -41,12 +82,10 @@ void __init acpi_watchdog_init(void) struct platform_device *pdev; struct resource *resources; size_t nresources = 0; - acpi_status status; int i;
- status = acpi_get_table(ACPI_SIG_WDAT, 0, - (struct acpi_table_header **)&wdat); - if (ACPI_FAILURE(status)) { + wdat = acpi_watchdog_get_wdat(); + if (!wdat) { /* It is fine if there is no WDAT */ return; }
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Andres Rodriguez andres.rodriguez@amd.com
[ Upstream commit 1cf6cc74bbeb85bb87c3ca3f3df97a283c3aa737 ]
Currently if a user requests clock counters for a node without a GPU resource we will always return EINVAL.
Instead if no GPU resource is attached, fill the gpu_clock_counter argument with zeroes so that we may proceed and return valid CPU counters.
Signed-off-by: Andres Rodriguez andres.rodriguez@amd.com Signed-off-by: Felix Kuehling Felix.Kuehling@amd.com Reviewed-by: Oded Gabbay oded.gabbay@gmail.com Signed-off-by: Oded Gabbay oded.gabbay@gmail.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/gpu/drm/amd/amdkfd/kfd_chardev.c | 13 +++++++------ 1 file changed, 7 insertions(+), 6 deletions(-)
--- a/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c @@ -748,12 +748,13 @@ static int kfd_ioctl_get_clock_counters( struct timespec64 time;
dev = kfd_device_by_id(args->gpu_id); - if (dev == NULL) - return -EINVAL; - - /* Reading GPU clock counter from KGD */ - args->gpu_clock_counter = - dev->kfd2kgd->get_gpu_clock_counter(dev->kgd); + if (dev) + /* Reading GPU clock counter from KGD */ + args->gpu_clock_counter = + dev->kfd2kgd->get_gpu_clock_counter(dev->kgd); + else + /* Node without GPU resource */ + args->gpu_clock_counter = 0;
/* No access to rdtsc. Using raw monotonic time */ getrawmonotonic64(&time);
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Markus Mayer mmayer@broadcom.com
[ Upstream commit ee53a65dc766384aaf1a26e3c43dd13456170b69 ]
This debug code was helpful while developing the driver, but it isn't being used for anything anymore.
Signed-off-by: Markus Mayer mmayer@broadcom.com Acked-by: Viresh Kumar viresh.kumar@linaro.org Signed-off-by: Rafael J. Wysocki rafael.j.wysocki@intel.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/cpufreq/Kconfig.arm | 10 - drivers/cpufreq/brcmstb-avs-cpufreq.c | 323 ---------------------------------- 2 files changed, 1 insertion(+), 332 deletions(-)
--- a/drivers/cpufreq/Kconfig.arm +++ b/drivers/cpufreq/Kconfig.arm @@ -70,16 +70,6 @@ config ARM_BRCMSTB_AVS_CPUFREQ
Say Y, if you have a Broadcom SoC with AVS support for DFS or DVFS.
-config ARM_BRCMSTB_AVS_CPUFREQ_DEBUG - bool "Broadcom STB AVS CPUfreq driver sysfs debug capability" - depends on ARM_BRCMSTB_AVS_CPUFREQ - help - Enabling this option turns on debug support via sysfs under - /sys/kernel/debug/brcmstb-avs-cpufreq. It is possible to read all and - write some AVS mailbox registers through sysfs entries. - - If in doubt, say N. - config ARM_EXYNOS5440_CPUFREQ tristate "SAMSUNG EXYNOS5440" depends on SOC_EXYNOS5440 --- a/drivers/cpufreq/brcmstb-avs-cpufreq.c +++ b/drivers/cpufreq/brcmstb-avs-cpufreq.c @@ -49,13 +49,6 @@ #include <linux/platform_device.h> #include <linux/semaphore.h>
-#ifdef CONFIG_ARM_BRCMSTB_AVS_CPUFREQ_DEBUG -#include <linux/ctype.h> -#include <linux/debugfs.h> -#include <linux/slab.h> -#include <linux/uaccess.h> -#endif - /* Max number of arguments AVS calls take */ #define AVS_MAX_CMD_ARGS 4 /* @@ -182,88 +175,11 @@ struct private_data { void __iomem *base; void __iomem *avs_intr_base; struct device *dev; -#ifdef CONFIG_ARM_BRCMSTB_AVS_CPUFREQ_DEBUG - struct dentry *debugfs; -#endif struct completion done; struct semaphore sem; struct pmap pmap; };
-#ifdef CONFIG_ARM_BRCMSTB_AVS_CPUFREQ_DEBUG - -enum debugfs_format { - DEBUGFS_NORMAL, - DEBUGFS_FLOAT, - DEBUGFS_REV, -}; - -struct debugfs_data { - struct debugfs_entry *entry; - struct private_data *priv; -}; - -struct debugfs_entry { - char *name; - u32 offset; - fmode_t mode; - enum debugfs_format format; -}; - -#define DEBUGFS_ENTRY(name, mode, format) { \ - #name, AVS_MBOX_##name, mode, format \ -} - -/* - * These are used for debugfs only. Otherwise we use AVS_MBOX_PARAM() directly. - */ -#define AVS_MBOX_PARAM1 AVS_MBOX_PARAM(0) -#define AVS_MBOX_PARAM2 AVS_MBOX_PARAM(1) -#define AVS_MBOX_PARAM3 AVS_MBOX_PARAM(2) -#define AVS_MBOX_PARAM4 AVS_MBOX_PARAM(3) - -/* - * This table stores the name, access permissions and offset for each hardware - * register and is used to generate debugfs entries. - */ -static struct debugfs_entry debugfs_entries[] = { - DEBUGFS_ENTRY(COMMAND, S_IWUSR, DEBUGFS_NORMAL), - DEBUGFS_ENTRY(STATUS, S_IWUSR, DEBUGFS_NORMAL), - DEBUGFS_ENTRY(VOLTAGE0, 0, DEBUGFS_FLOAT), - DEBUGFS_ENTRY(TEMP0, 0, DEBUGFS_FLOAT), - DEBUGFS_ENTRY(PV0, 0, DEBUGFS_FLOAT), - DEBUGFS_ENTRY(MV0, 0, DEBUGFS_FLOAT), - DEBUGFS_ENTRY(PARAM1, S_IWUSR, DEBUGFS_NORMAL), - DEBUGFS_ENTRY(PARAM2, S_IWUSR, DEBUGFS_NORMAL), - DEBUGFS_ENTRY(PARAM3, S_IWUSR, DEBUGFS_NORMAL), - DEBUGFS_ENTRY(PARAM4, S_IWUSR, DEBUGFS_NORMAL), - DEBUGFS_ENTRY(REVISION, 0, DEBUGFS_REV), - DEBUGFS_ENTRY(PSTATE, 0, DEBUGFS_NORMAL), - DEBUGFS_ENTRY(HEARTBEAT, 0, DEBUGFS_NORMAL), - DEBUGFS_ENTRY(MAGIC, S_IWUSR, DEBUGFS_NORMAL), - DEBUGFS_ENTRY(SIGMA_HVT, 0, DEBUGFS_NORMAL), - DEBUGFS_ENTRY(SIGMA_SVT, 0, DEBUGFS_NORMAL), - DEBUGFS_ENTRY(VOLTAGE1, 0, DEBUGFS_FLOAT), - DEBUGFS_ENTRY(TEMP1, 0, DEBUGFS_FLOAT), - DEBUGFS_ENTRY(PV1, 0, DEBUGFS_FLOAT), - DEBUGFS_ENTRY(MV1, 0, DEBUGFS_FLOAT), - DEBUGFS_ENTRY(FREQUENCY, 0, DEBUGFS_NORMAL), -}; - -static int brcm_avs_target_index(struct cpufreq_policy *, unsigned int); - -static char *__strtolower(char *s) -{ - char *p; - - for (p = s; *p; p++) - *p = tolower(*p); - - return s; -} - -#endif /* CONFIG_ARM_BRCMSTB_AVS_CPUFREQ_DEBUG */ - static void __iomem *__map_region(const char *name) { struct device_node *np; @@ -516,238 +432,6 @@ brcm_avs_get_freq_table(struct device *d return table; }
-#ifdef CONFIG_ARM_BRCMSTB_AVS_CPUFREQ_DEBUG - -#define MANT(x) (unsigned int)(abs((x)) / 1000) -#define FRAC(x) (unsigned int)(abs((x)) - abs((x)) / 1000 * 1000) - -static int brcm_avs_debug_show(struct seq_file *s, void *data) -{ - struct debugfs_data *dbgfs = s->private; - void __iomem *base; - u32 val, offset; - - if (!dbgfs) { - seq_puts(s, "No device pointer\n"); - return 0; - } - - base = dbgfs->priv->base; - offset = dbgfs->entry->offset; - val = readl(base + offset); - switch (dbgfs->entry->format) { - case DEBUGFS_NORMAL: - seq_printf(s, "%u\n", val); - break; - case DEBUGFS_FLOAT: - seq_printf(s, "%d.%03d\n", MANT(val), FRAC(val)); - break; - case DEBUGFS_REV: - seq_printf(s, "%c.%c.%c.%c\n", (val >> 24 & 0xff), - (val >> 16 & 0xff), (val >> 8 & 0xff), - val & 0xff); - break; - } - seq_printf(s, "0x%08x\n", val); - - return 0; -} - -#undef MANT -#undef FRAC - -static ssize_t brcm_avs_seq_write(struct file *file, const char __user *buf, - size_t size, loff_t *ppos) -{ - struct seq_file *s = file->private_data; - struct debugfs_data *dbgfs = s->private; - struct private_data *priv = dbgfs->priv; - void __iomem *base, *avs_intr_base; - bool use_issue_command = false; - unsigned long val, offset; - char str[128]; - int ret; - char *str_ptr = str; - - if (size >= sizeof(str)) - return -E2BIG; - - memset(str, 0, sizeof(str)); - ret = copy_from_user(str, buf, size); - if (ret) - return ret; - - base = priv->base; - avs_intr_base = priv->avs_intr_base; - offset = dbgfs->entry->offset; - /* - * Special case writing to "command" entry only: if the string starts - * with a 'c', we use the driver's __issue_avs_command() function. - * Otherwise, we perform a raw write. This should allow testing of raw - * access as well as using the higher level function. (Raw access - * doesn't clear the firmware return status after issuing the command.) - */ - if (str_ptr[0] == 'c' && offset == AVS_MBOX_COMMAND) { - use_issue_command = true; - str_ptr++; - } - if (kstrtoul(str_ptr, 0, &val) != 0) - return -EINVAL; - - /* - * Setting the P-state is a special case. We need to update the CPU - * frequency we report. - */ - if (val == AVS_CMD_SET_PSTATE) { - struct cpufreq_policy *policy; - unsigned int pstate; - - policy = cpufreq_cpu_get(smp_processor_id()); - /* Read back the P-state we are about to set */ - pstate = readl(base + AVS_MBOX_PARAM(0)); - if (use_issue_command) { - ret = brcm_avs_target_index(policy, pstate); - return ret ? ret : size; - } - policy->cur = policy->freq_table[pstate].frequency; - } - - if (use_issue_command) { - ret = __issue_avs_command(priv, val, false, NULL); - } else { - /* Locking here is not perfect, but is only for debug. */ - ret = down_interruptible(&priv->sem); - if (ret) - return ret; - - writel(val, base + offset); - /* We have to wake up the firmware to process a command. */ - if (offset == AVS_MBOX_COMMAND) - writel(AVS_CPU_L2_INT_MASK, - avs_intr_base + AVS_CPU_L2_SET0); - up(&priv->sem); - } - - return ret ? ret : size; -} - -static struct debugfs_entry *__find_debugfs_entry(const char *name) -{ - int i; - - for (i = 0; i < ARRAY_SIZE(debugfs_entries); i++) - if (strcasecmp(debugfs_entries[i].name, name) == 0) - return &debugfs_entries[i]; - - return NULL; -} - -static int brcm_avs_debug_open(struct inode *inode, struct file *file) -{ - struct debugfs_data *data; - fmode_t fmode; - int ret; - - /* - * seq_open(), which is called by single_open(), clears "write" access. - * We need write access to some files, so we preserve our access mode - * and restore it. - */ - fmode = file->f_mode; - /* - * Check access permissions even for root. We don't want to be writing - * to read-only registers. Access for regular users has already been - * checked by the VFS layer. - */ - if ((fmode & FMODE_WRITER) && !(inode->i_mode & S_IWUSR)) - return -EACCES; - - data = kmalloc(sizeof(*data), GFP_KERNEL); - if (!data) - return -ENOMEM; - /* - * We use the same file system operations for all our debug files. To - * produce specific output, we look up the file name upon opening a - * debugfs entry and map it to a memory offset. This offset is then used - * in the generic "show" function to read a specific register. - */ - data->entry = __find_debugfs_entry(file->f_path.dentry->d_iname); - data->priv = inode->i_private; - - ret = single_open(file, brcm_avs_debug_show, data); - if (ret) - kfree(data); - file->f_mode = fmode; - - return ret; -} - -static int brcm_avs_debug_release(struct inode *inode, struct file *file) -{ - struct seq_file *seq_priv = file->private_data; - struct debugfs_data *data = seq_priv->private; - - kfree(data); - return single_release(inode, file); -} - -static const struct file_operations brcm_avs_debug_ops = { - .open = brcm_avs_debug_open, - .read = seq_read, - .write = brcm_avs_seq_write, - .llseek = seq_lseek, - .release = brcm_avs_debug_release, -}; - -static void brcm_avs_cpufreq_debug_init(struct platform_device *pdev) -{ - struct private_data *priv = platform_get_drvdata(pdev); - struct dentry *dir; - int i; - - if (!priv) - return; - - dir = debugfs_create_dir(BRCM_AVS_CPUFREQ_NAME, NULL); - if (IS_ERR_OR_NULL(dir)) - return; - priv->debugfs = dir; - - for (i = 0; i < ARRAY_SIZE(debugfs_entries); i++) { - /* - * The DEBUGFS_ENTRY macro generates uppercase strings. We - * convert them to lowercase before creating the debugfs - * entries. - */ - char *entry = __strtolower(debugfs_entries[i].name); - fmode_t mode = debugfs_entries[i].mode; - - if (!debugfs_create_file(entry, S_IFREG | S_IRUGO | mode, - dir, priv, &brcm_avs_debug_ops)) { - priv->debugfs = NULL; - debugfs_remove_recursive(dir); - break; - } - } -} - -static void brcm_avs_cpufreq_debug_exit(struct platform_device *pdev) -{ - struct private_data *priv = platform_get_drvdata(pdev); - - if (priv && priv->debugfs) { - debugfs_remove_recursive(priv->debugfs); - priv->debugfs = NULL; - } -} - -#else - -static void brcm_avs_cpufreq_debug_init(struct platform_device *pdev) {} -static void brcm_avs_cpufreq_debug_exit(struct platform_device *pdev) {} - -#endif /* CONFIG_ARM_BRCMSTB_AVS_CPUFREQ_DEBUG */ - /* * To ensure the right firmware is running we need to * - check the MAGIC matches what we expect @@ -1020,11 +704,8 @@ static int brcm_avs_cpufreq_probe(struct return ret;
brcm_avs_driver.driver_data = pdev; - ret = cpufreq_register_driver(&brcm_avs_driver); - if (!ret) - brcm_avs_cpufreq_debug_init(pdev);
- return ret; + return cpufreq_register_driver(&brcm_avs_driver); }
static int brcm_avs_cpufreq_remove(struct platform_device *pdev) @@ -1036,8 +717,6 @@ static int brcm_avs_cpufreq_remove(struc if (ret) return ret;
- brcm_avs_cpufreq_debug_exit(pdev); - priv = platform_get_drvdata(pdev); iounmap(priv->base); iounmap(priv->avs_intr_base);
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Hans de Goede hdegoede@redhat.com
[ Upstream commit 13b86f50eaaddaea4bdd2fe476fd12e6a0951add ]
Starting with kernel 4.17 thermal_cooling_device_register() will call the get_max_state() op during register.
Since we deref priv->priv in int3403_get_max_state() this means we must set priv->priv before calling thermal_cooling_device_register().
Signed-off-by: Hans de Goede hdegoede@redhat.com Signed-off-by: Zhang Rui rui.zhang@intel.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/thermal/int340x_thermal/int3403_thermal.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-)
--- a/drivers/thermal/int340x_thermal/int3403_thermal.c +++ b/drivers/thermal/int340x_thermal/int3403_thermal.c @@ -194,6 +194,7 @@ static int int3403_cdev_add(struct int34 return -EFAULT; }
+ priv->priv = obj; obj->max_state = p->package.count - 1; obj->cdev = thermal_cooling_device_register(acpi_device_bid(priv->adev), @@ -201,8 +202,6 @@ static int int3403_cdev_add(struct int34 if (IS_ERR(obj->cdev)) result = PTR_ERR(obj->cdev);
- priv->priv = obj; - kfree(buf.pointer); /* TODO: add ACPI notification support */
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Steve French smfrench@gmail.com
[ Upstream commit 117e3b7fed552eba96ae0b3b92312fe8c5b0bfdd ]
Dan Carpenter had pointed this out a while ago, but the code around this had changed so wasn't causing any problems since that field was not used in this error path.
Still, it is cleaner to always initialize this field, so changing the error path to set it.
Reviewed-by: Ronnie Sahlberg lsahlber@redhat.com CC: Dan Carpenter dan.carpenter@oracle.com Signed-off-by: Steve French smfrench@gmail.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- fs/cifs/transport.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-)
--- a/fs/cifs/transport.c +++ b/fs/cifs/transport.c @@ -833,8 +833,11 @@ SendReceive2(const unsigned int xid, str if (n_vec + 1 > CIFS_MAX_IOV_SIZE) { new_iov = kmalloc(sizeof(struct kvec) * (n_vec + 1), GFP_KERNEL); - if (!new_iov) + if (!new_iov) { + /* otherwise cifs_send_recv below sets resp_buf_type */ + *resp_buf_type = CIFS_NO_BUFFER; return -ENOMEM; + } } else new_iov = s_iov;
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Masahiro Yamada yamada.masahiro@socionext.com
[ Upstream commit f4e5200fc0d7dad75c688e7ccc0652481a916df5 ]
The property of the legacy mode for the eMMC PHY turned out to be wrong. Some eMMC devices are unstable due to the set-up/hold timing violation. Correct the delay value.
Signed-off-by: Masahiro Yamada yamada.masahiro@socionext.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/arm64/boot/dts/socionext/uniphier-ld11.dtsi | 2 +- arch/arm64/boot/dts/socionext/uniphier-ld20.dtsi | 2 +- arch/arm64/boot/dts/socionext/uniphier-pxs3.dtsi | 2 +- 3 files changed, 3 insertions(+), 3 deletions(-)
--- a/arch/arm64/boot/dts/socionext/uniphier-ld11.dtsi +++ b/arch/arm64/boot/dts/socionext/uniphier-ld11.dtsi @@ -330,7 +330,7 @@ mmc-ddr-1_8v; mmc-hs200-1_8v; mmc-pwrseq = <&emmc_pwrseq>; - cdns,phy-input-delay-legacy = <4>; + cdns,phy-input-delay-legacy = <9>; cdns,phy-input-delay-mmc-highspeed = <2>; cdns,phy-input-delay-mmc-ddr = <3>; cdns,phy-dll-delay-sdclk = <21>; --- a/arch/arm64/boot/dts/socionext/uniphier-ld20.dtsi +++ b/arch/arm64/boot/dts/socionext/uniphier-ld20.dtsi @@ -435,7 +435,7 @@ mmc-ddr-1_8v; mmc-hs200-1_8v; mmc-pwrseq = <&emmc_pwrseq>; - cdns,phy-input-delay-legacy = <4>; + cdns,phy-input-delay-legacy = <9>; cdns,phy-input-delay-mmc-highspeed = <2>; cdns,phy-input-delay-mmc-ddr = <3>; cdns,phy-dll-delay-sdclk = <21>; --- a/arch/arm64/boot/dts/socionext/uniphier-pxs3.dtsi +++ b/arch/arm64/boot/dts/socionext/uniphier-pxs3.dtsi @@ -336,7 +336,7 @@ mmc-ddr-1_8v; mmc-hs200-1_8v; mmc-pwrseq = <&emmc_pwrseq>; - cdns,phy-input-delay-legacy = <4>; + cdns,phy-input-delay-legacy = <9>; cdns,phy-input-delay-mmc-highspeed = <2>; cdns,phy-input-delay-mmc-ddr = <3>; cdns,phy-dll-delay-sdclk = <21>;
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Vinicius Costa Gomes vinicius.gomes@intel.com
[ Upstream commit 2707df9773cd2cb8b0f35b8592431b301da9d352 ]
When Qav mode is enabled, queue 0 should be kept on Stream Reservation mode. From the i210 datasheet, section 8.12.19:
"Note: Queue0 QueueMode must be set to 1b when TransmitMode is set to Qav." ("QueueMode 1b" represents the Stream Reservation mode)
The solution is to give queue 0 the all the credits it might need, so it has priority over queue 1.
A situation where this can happen is when cbs is "installed" only on queue 1, leaving queue 0 alone. For example:
$ tc qdisc replace dev enp2s0 handle 100: parent root mqprio num_tc 3 \ map 2 2 1 0 2 2 2 2 2 2 2 2 2 2 2 2 queues 1@0 1@1 2@2 hw 0
$ tc qdisc replace dev enp2s0 parent 100:2 cbs locredit -1470 \ hicredit 30 sendslope -980000 idleslope 20000 offload 1
Signed-off-by: Vinicius Costa Gomes vinicius.gomes@intel.com Tested-by: Aaron Brown aaron.f.brown@intel.com Signed-off-by: Jeff Kirsher jeffrey.t.kirsher@intel.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/net/ethernet/intel/igb/igb_main.c | 17 ++++++++++++++++- 1 file changed, 16 insertions(+), 1 deletion(-)
--- a/drivers/net/ethernet/intel/igb/igb_main.c +++ b/drivers/net/ethernet/intel/igb/igb_main.c @@ -1698,7 +1698,22 @@ static void igb_configure_cbs(struct igb WARN_ON(hw->mac.type != e1000_i210); WARN_ON(queue < 0 || queue > 1);
- if (enable) { + if (enable || queue == 0) { + /* i210 does not allow the queue 0 to be in the Strict + * Priority mode while the Qav mode is enabled, so, + * instead of disabling strict priority mode, we give + * queue 0 the maximum of credits possible. + * + * See section 8.12.19 of the i210 datasheet, "Note: + * Queue0 QueueMode must be set to 1b when + * TransmitMode is set to Qav." + */ + if (queue == 0 && !enable) { + /* max "linkspeed" idleslope in kbps */ + idleslope = 1000000; + hicredit = ETH_FRAME_LEN; + } + set_tx_desc_fetch_prio(hw, queue, TX_QUEUE_PRIO_HIGH); set_queue_mode(hw, queue, QUEUE_MODE_STREAM_RESERVATION);
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Florian Fainelli f.fainelli@gmail.com
[ Upstream commit d805c5209350ae725e3a1ee0204ba27d9e75ce3e ]
While adding support for ethtool::get_fecparam and set_fecparam, kernel doc for these functions was missed, add those.
Fixes: 1a5f3da20bd9 ("net: ethtool: add support for forward error correction modes") Signed-off-by: Florian Fainelli f.fainelli@gmail.com Acked-by: Roopa Prabhu roopa@cumulusnetworks.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- include/linux/ethtool.h | 2 ++ 1 file changed, 2 insertions(+)
--- a/include/linux/ethtool.h +++ b/include/linux/ethtool.h @@ -310,6 +310,8 @@ bool ethtool_convert_link_mode_to_legacy * fields should be ignored (use %__ETHTOOL_LINK_MODE_MASK_NBITS * instead of the latter), any change to them will be overwritten * by kernel. Returns a negative error code or zero. + * @get_fecparam: Get the network device Forward Error Correction parameters. + * @set_fecparam: Set the network device Forward Error Correction parameters. * * All operations are optional (i.e. the function pointer may be set * to %NULL) and callers must take this into account. Callers must
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Christoph Hellwig hch@lst.de
[ Upstream commit 86e11757d8b28d8266065beaa9d391d49426797b ]
DMA_DIRECT_OPS is defined in lib/Kconfig, so don't duplicate it in arch/riscv/Kconfig.
Signed-off-by: Christoph Hellwig hch@lst.de Signed-off-by: Palmer Dabbelt palmer@sifive.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/riscv/Kconfig | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-)
--- a/arch/riscv/Kconfig +++ b/arch/riscv/Kconfig @@ -11,6 +11,7 @@ config RISCV select ARCH_WANT_FRAME_POINTERS select CLONE_BACKWARDS select COMMON_CLK + select DMA_DIRECT_OPS select GENERIC_CLOCKEVENTS select GENERIC_CPU_DEVICES select GENERIC_IRQ_SHOW @@ -88,9 +89,6 @@ config PGTABLE_LEVELS config HAVE_KPROBES def_bool n
-config DMA_DIRECT_OPS - def_bool y - menu "Platform type"
choice
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Aurelien Jarno aurelien@aurel32.net
[ Upstream commit 85602bea297fc4e5223adbf7006dcce9aa694f17 ]
Debian toolcahin defaults to PIE, and I guess that will also be the case of most distributions. This causes the following build failure:
AS arch/riscv/kernel/vdso/getcpu.o AS arch/riscv/kernel/vdso/flush_icache.o VDSOLD arch/riscv/kernel/vdso/vdso.so.dbg OBJCOPY arch/riscv/kernel/vdso/vdso.so AS arch/riscv/kernel/vdso/vdso.o VDSOLD arch/riscv/kernel/vdso/vdso-dummy.o LD arch/riscv/kernel/vdso/vdso-syms.o riscv64-linux-gnu-ld: attempted static link of dynamic object `arch/riscv/kernel/vdso/vdso-dummy.o' make[2]: *** [arch/riscv/kernel/vdso/Makefile:43: arch/riscv/kernel/vdso/vdso-syms.o] Error 1 make[1]: *** [scripts/Makefile.build:575: arch/riscv/kernel/vdso] Error 2 make: *** [Makefile:1018: arch/riscv/kernel] Error 2
While the root Makefile correctly passes "-fno-PIE" to build individual object files, the RISC-V kernel also builds vdso-dummy.o as an executable, which is therefore linked as PIE. Fix that by updating this specific link rule to also include "-no-pie".
Signed-off-by: Aurelien Jarno aurelien@aurel32.net Signed-off-by: Palmer Dabbelt palmer@sifive.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/riscv/kernel/vdso/Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/arch/riscv/kernel/vdso/Makefile +++ b/arch/riscv/kernel/vdso/Makefile @@ -52,7 +52,7 @@ $(obj)/%.so: $(obj)/%.so.dbg FORCE # Add -lgcc so rv32 gets static muldi3 and lshrdi3 definitions. # Make sure only to export the intended __vdso_xxx symbol offsets. quiet_cmd_vdsold = VDSOLD $@ - cmd_vdsold = $(CC) $(KCFLAGS) -nostdlib $(SYSCFLAGS_$(@F)) \ + cmd_vdsold = $(CC) $(KCFLAGS) $(call cc-option, -no-pie) -nostdlib $(SYSCFLAGS_$(@F)) \ -Wl,-T,$(filter-out FORCE,$^) -o $@.tmp -lgcc && \ $(CROSS_COMPILE)objcopy \ $(patsubst %, -G __vdso_%, $(vdso-syms)) $@.tmp $@
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Mark Rutland mark.rutland@arm.com
[ Upstream commit 59275a0c037ed6fabd6354730f1e3104264ab719 ]
We transiently switch to KERNEL_DS in compat_ptrace_gethbpregs() and compat_ptrace_sethbpregs(), but in either case this is pointless as we don't perform any uaccess during this window.
let's rip out the redundant addr_limit manipulation.
Acked-by: Catalin Marinas catalin.marinas@arm.com Signed-off-by: Mark Rutland mark.rutland@arm.com Cc: Will Deacon will.deacon@arm.com Signed-off-by: Will Deacon will.deacon@arm.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/arm64/kernel/ptrace.c | 6 ------ 1 file changed, 6 deletions(-)
--- a/arch/arm64/kernel/ptrace.c +++ b/arch/arm64/kernel/ptrace.c @@ -1458,9 +1458,7 @@ static int compat_ptrace_gethbpregs(stru { int ret; u32 kdata; - mm_segment_t old_fs = get_fs();
- set_fs(KERNEL_DS); /* Watchpoint */ if (num < 0) { ret = compat_ptrace_hbp_get(NT_ARM_HW_WATCH, tsk, num, &kdata); @@ -1471,7 +1469,6 @@ static int compat_ptrace_gethbpregs(stru } else { ret = compat_ptrace_hbp_get(NT_ARM_HW_BREAK, tsk, num, &kdata); } - set_fs(old_fs);
if (!ret) ret = put_user(kdata, data); @@ -1484,7 +1481,6 @@ static int compat_ptrace_sethbpregs(stru { int ret; u32 kdata = 0; - mm_segment_t old_fs = get_fs();
if (num == 0) return 0; @@ -1493,12 +1489,10 @@ static int compat_ptrace_sethbpregs(stru if (ret) return ret;
- set_fs(KERNEL_DS); if (num < 0) ret = compat_ptrace_hbp_set(NT_ARM_HW_WATCH, tsk, num, &kdata); else ret = compat_ptrace_hbp_set(NT_ARM_HW_BREAK, tsk, num, &kdata); - set_fs(old_fs);
return ret; }
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Mark Rutland mark.rutland@arm.com
[ Upstream commit 9478f1927e6ef9ef5e1ad761af1c98aa8e40b7f5 ]
Our arm64_skip_faulting_instruction() helper advances the userspace singlestep state machine, but this is also called by the kernel BRK handler, as used for WARN*().
Thus, if we happen to hit a WARN*() while the user singlestep state machine is in the active-no-pending state, we'll advance to the active-pending state without having executed a user instruction, and will take a step exception earlier than expected when we return to userspace.
Let's fix this by only advancing the state machine when skipping a user instruction.
Signed-off-by: Mark Rutland mark.rutland@arm.com Cc: Andrey Konovalov andreyknvl@google.com Cc: Catalin Marinas catalin.marinas@arm.com Cc: Will Deacon will.deacon@arm.com Signed-off-by: Will Deacon will.deacon@arm.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/arm64/kernel/traps.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
--- a/arch/arm64/kernel/traps.c +++ b/arch/arm64/kernel/traps.c @@ -243,7 +243,8 @@ void arm64_skip_faulting_instruction(str * If we were single stepping, we want to get the step exception after * we return from the trap. */ - user_fastforward_single_step(current); + if (user_mode(regs)) + user_fastforward_single_step(current); }
static LIST_HEAD(undef_hook);
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Kan Liang kan.liang@linux.intel.com
[ Upstream commit 292c34c10249c64a70def442f0d977bf9d466ed7 ]
When counting uncore event with alias, core event is mistakenly involved, for example:
perf stat --no-merge -e "unc_m_cas_count.all" -C0 sleep 1
Performance counter stats for 'CPU(s) 0':
0 unc_m_cas_count.all [uncore_imc_4] 0 unc_m_cas_count.all [uncore_imc_2] 0 unc_m_cas_count.all [uncore_imc_0] 153,640 unc_m_cas_count.all [cpu] 0 unc_m_cas_count.all [uncore_imc_5] 25,026 unc_m_cas_count.all [uncore_imc_3] 0 unc_m_cas_count.all [uncore_imc_1]
1.001447890 seconds time elapsed
The reason is that current implementation doesn't check PMU name of a event when adding its alias into the alias list for core PMU. The uncore event aliases are mistakenly added.
This bug was introduced in: commit 14b22ae028de ("perf pmu: Add helper function is_pmu_core to detect PMU CORE devices")
Checking the PMU name for all PMUs on X86 and other architectures except ARM. There is no behavior change for ARM.
Signed-off-by: Kan Liang kan.liang@linux.intel.com Tested-by: Arnaldo Carvalho de Melo acme@redhat.com Cc: Agustin Vega-Frias agustinv@codeaurora.org Cc: Andi Kleen ak@linux.intel.com Cc: Ganapatrao Kulkarni ganapatrao.kulkarni@cavium.com Cc: Jin Yao yao.jin@linux.intel.com Cc: Jiri Olsa jolsa@redhat.com Cc: Namhyung Kim namhyung@kernel.org Cc: Peter Zijlstra peterz@infradead.org Cc: Shaokun Zhang zhangshaokun@hisilicon.com Cc: Will Deacon will.deacon@arm.com Fixes: 14b22ae028de ("perf pmu: Add helper function is_pmu_core to detect PMU CORE devices") Link: http://lkml.kernel.org/r/1524594014-79243-1-git-send-email-kan.liang@linux.i... Signed-off-by: Arnaldo Carvalho de Melo acme@redhat.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- tools/perf/util/pmu.c | 20 +++++++------------- 1 file changed, 7 insertions(+), 13 deletions(-)
--- a/tools/perf/util/pmu.c +++ b/tools/perf/util/pmu.c @@ -539,9 +539,10 @@ static bool pmu_is_uncore(const char *na
/* * PMU CORE devices have different name other than cpu in sysfs on some - * platforms. looking for possible sysfs files to identify as core device. + * platforms. + * Looking for possible sysfs files to identify the arm core device. */ -static int is_pmu_core(const char *name) +static int is_arm_pmu_core(const char *name) { struct stat st; char path[PATH_MAX]; @@ -550,12 +551,6 @@ static int is_pmu_core(const char *name) if (!sysfs) return 0;
- /* Look for cpu sysfs (x86 and others) */ - scnprintf(path, PATH_MAX, "%s/bus/event_source/devices/cpu", sysfs); - if ((stat(path, &st) == 0) && - (strncmp(name, "cpu", strlen("cpu")) == 0)) - return 1; - /* Look for cpu sysfs (specific to arm) */ scnprintf(path, PATH_MAX, "%s/bus/event_source/devices/%s/cpus", sysfs, name); @@ -651,6 +646,7 @@ static void pmu_add_cpu_aliases(struct l struct pmu_events_map *map; struct pmu_event *pe; const char *name = pmu->name; + const char *pname;
map = perf_pmu__find_map(pmu); if (!map) @@ -669,11 +665,9 @@ static void pmu_add_cpu_aliases(struct l break; }
- if (!is_pmu_core(name)) { - /* check for uncore devices */ - if (pe->pmu == NULL) - continue; - if (strncmp(pe->pmu, name, strlen(pe->pmu))) + if (!is_arm_pmu_core(name)) { + pname = pe->pmu ? pe->pmu : "cpu"; + if (strncmp(pname, name, strlen(pname))) continue; }
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: pgzh peter.ganzhorn@gmail.com
[ Upstream commit a230cd52b8a2be39cd6e9a13b3e62af57f21372a ]
The IBM/Lenovo Scrollpoint mice feature a trackpoint-like stick instead of a scrolling wheel capable of 2-D (vertical+horizontal) scrolling. hid-generic does only expose 1-D (vertical) scrolling functionality for these mice. This patch adds support for horizontal scrolling for the IBM/Lenovo Scrollpoint mice to hid-lenovo.
[jkosina@suse.cz: remove change versioning from git changelog] Signed-off-by: Peter Ganzhorn peter.ganzhorn@gmail.com Reviewed-by: Benjamin Tissoires benjamin.tissoires@redhat.com Signed-off-by: Peter De Wachter pdewacht@gmail.com Signed-off-by: Jiri Kosina jkosina@suse.cz Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/hid/Kconfig | 7 ++++--- drivers/hid/hid-ids.h | 8 ++++++++ drivers/hid/hid-lenovo.c | 36 ++++++++++++++++++++++++++++++++++++ 3 files changed, 48 insertions(+), 3 deletions(-)
--- a/drivers/hid/Kconfig +++ b/drivers/hid/Kconfig @@ -448,10 +448,11 @@ config HID_LENOVO select NEW_LEDS select LEDS_CLASS ---help--- - Support for Lenovo devices that are not fully compliant with HID standard. + Support for IBM/Lenovo devices that are not fully compliant with HID standard.
- Say Y if you want support for the non-compliant features of the Lenovo - Thinkpad standalone keyboards, e.g: + Say Y if you want support for horizontal scrolling of the IBM/Lenovo + Scrollpoint mice or the non-compliant features of the Lenovo Thinkpad + standalone keyboards, e.g: - ThinkPad USB Keyboard with TrackPoint (supports extra LEDs and trackpoint configuration) - ThinkPad Compact Bluetooth Keyboard with TrackPoint (supports Fn keys) --- a/drivers/hid/hid-ids.h +++ b/drivers/hid/hid-ids.h @@ -546,6 +546,13 @@ #define USB_VENDOR_ID_HUION 0x256c #define USB_DEVICE_ID_HUION_TABLET 0x006e
+#define USB_VENDOR_ID_IBM 0x04b3 +#define USB_DEVICE_ID_IBM_SCROLLPOINT_III 0x3100 +#define USB_DEVICE_ID_IBM_SCROLLPOINT_PRO 0x3103 +#define USB_DEVICE_ID_IBM_SCROLLPOINT_OPTICAL 0x3105 +#define USB_DEVICE_ID_IBM_SCROLLPOINT_800DPI_OPTICAL 0x3108 +#define USB_DEVICE_ID_IBM_SCROLLPOINT_800DPI_OPTICAL_PRO 0x3109 + #define USB_VENDOR_ID_IDEACOM 0x1cb6 #define USB_DEVICE_ID_IDEACOM_IDC6650 0x6650 #define USB_DEVICE_ID_IDEACOM_IDC6651 0x6651 @@ -678,6 +685,7 @@ #define USB_DEVICE_ID_LENOVO_TPKBD 0x6009 #define USB_DEVICE_ID_LENOVO_CUSBKBD 0x6047 #define USB_DEVICE_ID_LENOVO_CBTKBD 0x6048 +#define USB_DEVICE_ID_LENOVO_SCROLLPOINT_OPTICAL 0x6049 #define USB_DEVICE_ID_LENOVO_TPPRODOCK 0x6067 #define USB_DEVICE_ID_LENOVO_X1_COVER 0x6085 #define USB_DEVICE_ID_LENOVO_X1_TAB 0x60a3 --- a/drivers/hid/hid-lenovo.c +++ b/drivers/hid/hid-lenovo.c @@ -6,6 +6,17 @@ * * Copyright (c) 2012 Bernhard Seibold * Copyright (c) 2014 Jamie Lentin jm@lentin.co.uk + * + * Linux IBM/Lenovo Scrollpoint mouse driver: + * - IBM Scrollpoint III + * - IBM Scrollpoint Pro + * - IBM Scrollpoint Optical + * - IBM Scrollpoint Optical 800dpi + * - IBM Scrollpoint Optical 800dpi Pro + * - Lenovo Scrollpoint Optical + * + * Copyright (c) 2012 Peter De Wachter pdewacht@gmail.com + * Copyright (c) 2018 Peter Ganzhorn peter.ganzhorn@gmail.com */
/* @@ -160,6 +171,17 @@ static int lenovo_input_mapping_cptkbd(s return 0; }
+static int lenovo_input_mapping_scrollpoint(struct hid_device *hdev, + struct hid_input *hi, struct hid_field *field, + struct hid_usage *usage, unsigned long **bit, int *max) +{ + if (usage->hid == HID_GD_Z) { + hid_map_usage(hi, usage, bit, max, EV_REL, REL_HWHEEL); + return 1; + } + return 0; +} + static int lenovo_input_mapping(struct hid_device *hdev, struct hid_input *hi, struct hid_field *field, struct hid_usage *usage, unsigned long **bit, int *max) @@ -172,6 +194,14 @@ static int lenovo_input_mapping(struct h case USB_DEVICE_ID_LENOVO_CBTKBD: return lenovo_input_mapping_cptkbd(hdev, hi, field, usage, bit, max); + case USB_DEVICE_ID_IBM_SCROLLPOINT_III: + case USB_DEVICE_ID_IBM_SCROLLPOINT_PRO: + case USB_DEVICE_ID_IBM_SCROLLPOINT_OPTICAL: + case USB_DEVICE_ID_IBM_SCROLLPOINT_800DPI_OPTICAL: + case USB_DEVICE_ID_IBM_SCROLLPOINT_800DPI_OPTICAL_PRO: + case USB_DEVICE_ID_LENOVO_SCROLLPOINT_OPTICAL: + return lenovo_input_mapping_scrollpoint(hdev, hi, field, + usage, bit, max); default: return 0; } @@ -883,6 +913,12 @@ static const struct hid_device_id lenovo { HID_USB_DEVICE(USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_CUSBKBD) }, { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_CBTKBD) }, { HID_USB_DEVICE(USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_TPPRODOCK) }, + { HID_USB_DEVICE(USB_VENDOR_ID_IBM, USB_DEVICE_ID_IBM_SCROLLPOINT_III) }, + { HID_USB_DEVICE(USB_VENDOR_ID_IBM, USB_DEVICE_ID_IBM_SCROLLPOINT_PRO) }, + { HID_USB_DEVICE(USB_VENDOR_ID_IBM, USB_DEVICE_ID_IBM_SCROLLPOINT_OPTICAL) }, + { HID_USB_DEVICE(USB_VENDOR_ID_IBM, USB_DEVICE_ID_IBM_SCROLLPOINT_800DPI_OPTICAL) }, + { HID_USB_DEVICE(USB_VENDOR_ID_IBM, USB_DEVICE_ID_IBM_SCROLLPOINT_800DPI_OPTICAL_PRO) }, + { HID_USB_DEVICE(USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_SCROLLPOINT_OPTICAL) }, { } };
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Arvind Yadav arvind.yadav.cs@gmail.com
[ Upstream commit 097b8f62dd793e08f1732fc74dbb64596c7fbff9 ]
Free device resource data, if __wacom_devm_sysfs_create_group is not successful.
Signed-off-by: Arvind Yadav arvind.yadav.cs@gmail.com Reviewed-by: Benjamin Tissoires benjamin.tissoires@redhat.com Signed-off-by: Jiri Kosina jkosina@suse.cz Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/hid/wacom_sys.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
--- a/drivers/hid/wacom_sys.c +++ b/drivers/hid/wacom_sys.c @@ -1213,8 +1213,10 @@ static int __wacom_devm_sysfs_create_gro devres->root = root;
error = sysfs_create_group(devres->root, group); - if (error) + if (error) { + devres_free(devres); return error; + }
devres_add(&wacom->hdev->dev, devres);
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Masami Hiramatsu mhiramat@kernel.org
[ Upstream commit 25aa50e0ca397a5e5d4d6fcecefa8107877d1dd0 ]
Add a testcase for multiple actions with different parameters on an event trigger, which has been fixed by commit 192c283e93bd ("tracing: Add action comparisons when testing matching hist triggers").
Link: http://lkml.kernel.org/r/152292055227.15769.6327959816123227152.stgit@devbox
Reviewed-by: Tom Zanussi tom.zanussi@linux.intel.com Tested-by: Tom Zanussi tom.zanussi@linux.intel.com Signed-off-by: Masami Hiramatsu mhiramat@kernel.org Signed-off-by: Steven Rostedt (VMware) rostedt@goodmis.org Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-multi-actions-accept.tc | 44 ++++++++++ 1 file changed, 44 insertions(+) create mode 100644 tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-multi-actions-accept.tc
--- /dev/null +++ b/tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-multi-actions-accept.tc @@ -0,0 +1,44 @@ +#!/bin/sh +# description: event trigger - test multiple actions on hist trigger + + +do_reset() { + reset_trigger + echo > set_event + clear_trace +} + +fail() { #msg + do_reset + echo $1 + exit_fail +} + +if [ ! -f set_event ]; then + echo "event tracing is not supported" + exit_unsupported +fi + +if [ ! -f synthetic_events ]; then + echo "synthetic event is not supported" + exit_unsupported +fi + +clear_synthetic_events +reset_tracer +do_reset + +echo "Test multiple actions on hist trigger" +echo 'wakeup_latency u64 lat; pid_t pid' >> synthetic_events +TRIGGER1=events/sched/sched_wakeup/trigger +TRIGGER2=events/sched/sched_switch/trigger + +echo 'hist:keys=pid:ts0=common_timestamp.usecs if comm=="cyclictest"' > $TRIGGER1 +echo 'hist:keys=next_pid:wakeup_lat=common_timestamp.usecs-$ts0 if next_comm=="cyclictest"' >> $TRIGGER2 +echo 'hist:keys=next_pid:onmatch(sched.sched_wakeup).wakeup_latency(sched.sched_switch.$wakeup_lat,next_pid) if next_comm=="cyclictest"' >> $TRIGGER2 +echo 'hist:keys=next_pid:onmatch(sched.sched_wakeup).wakeup_latency(sched.sched_switch.$wakeup_lat,prev_pid) if next_comm=="cyclictest"' >> $TRIGGER2 +echo 'hist:keys=next_pid if next_comm=="cyclictest"' >> $TRIGGER2 + +do_reset + +exit 0
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Gianluca Borello g.borello@gmail.com
[ Upstream commit 1612a981b76688c598dc944bbfbe29a2b33e3973 ]
Commit 2a5418a13fcf ("bpf: improve dead code sanitizing") replaced dead code with a series of ja-1 instructions, for safety. That made JIT compilation much more complex for some BPF programs. One instance of such programs is, for example:
bool flag = false ... /* A bunch of other code */ ... if (flag) do_something()
In some cases llvm is not able to remove at compile time the code for do_something(), so the generated BPF program ends up with a large amount of dead instructions. In one specific real life example, there are two series of ~500 and ~1000 dead instructions in the program. When the verifier replaces them with a series of ja-1 instructions, it causes an interesting behavior at JIT time.
During the first pass, since all the instructions are estimated at 64 bytes, the ja-1 instructions end up being translated as 5 bytes JMP instructions (0xE9), since the jump offsets become increasingly large (> 127) as each instruction gets discovered to be 5 bytes instead of the estimated 64.
Starting from the second pass, the first N instructions of the ja-1 sequence get translated into 2 bytes JMPs (0xEB) because the jump offsets become <= 127 this time. In particular, N is defined as roughly 127 / (5 - 2) ~= 42. So, each further pass will make the subsequent N JMP instructions shrink from 5 to 2 bytes, making the image shrink every time. This means that in order to have the entire program converge, there need to be, in the real example above, at least ~1000 / 42 ~= 24 passes just for translating the dead code. If we add this number to the passes needed to translate the other non dead code, it brings such program to 40+ passes, and JIT doesn't complete. Ultimately the userspace loader fails because such BPF program was supposed to be part of a prog array owner being JITed.
While it is certainly possible to try to refactor such programs to help the compiler remove dead code, the behavior is not really intuitive and it puts further burden on the BPF developer who is not expecting such behavior. To make things worse, such programs are working just fine in all the kernel releases prior to the ja-1 fix.
A possible approach to mitigate this behavior consists into noticing that for ja-1 instructions we don't really need to rely on the estimated size of the previous and current instructions, we know that a -1 BPF jump offset can be safely translated into a 0xEB instruction with a jump offset of -2.
Such fix brings the BPF program in the previous example to complete again in ~9 passes.
Fixes: 2a5418a13fcf ("bpf: improve dead code sanitizing") Signed-off-by: Gianluca Borello g.borello@gmail.com Acked-by: Alexei Starovoitov ast@kernel.org Signed-off-by: Daniel Borkmann daniel@iogearbox.net Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/x86/net/bpf_jit_comp.c | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-)
--- a/arch/x86/net/bpf_jit_comp.c +++ b/arch/x86/net/bpf_jit_comp.c @@ -992,7 +992,17 @@ emit_cond_jmp: /* convert BPF opcode to break;
case BPF_JMP | BPF_JA: - jmp_offset = addrs[i + insn->off] - addrs[i]; + if (insn->off == -1) + /* -1 jmp instructions will always jump + * backwards two bytes. Explicitly handling + * this case avoids wasting too many passes + * when there are long sequences of replaced + * dead code. + */ + jmp_offset = -2; + else + jmp_offset = addrs[i + insn->off] - addrs[i]; + if (!jmp_offset) /* optimize out nop jumps */ break;
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Kan Liang kan.liang@linux.intel.com
[ Upstream commit 4e949e9b9d1e3edcdab3b54656c5851bd9e49c67 ]
The SMM freeze feature was introduced since PerfMon V2. But the current code unconditionally enables the feature for all platforms. It can generate #GP exception, if the related FREEZE_WHILE_SMM bit is set for the machine with PerfMon V1.
To disable the feature for PerfMon V1, perf needs to - Remove the freeze_on_smi sysfs entry by moving intel_pmu_attrs to intel_pmu, which is only applied to PerfMon V2 and later. - Check the PerfMon version before flipping the SMM bit when starting CPU
Fixes: 6089327f5424 ("perf/x86: Add sysfs entry to freeze counters on SMI") Signed-off-by: Kan Liang kan.liang@linux.intel.com Signed-off-by: Thomas Gleixner tglx@linutronix.de Acked-by: Peter Zijlstra (Intel) peterz@infradead.org Cc: ak@linux.intel.com Cc: eranian@google.com Cc: acme@redhat.com Link: https://lkml.kernel.org/r/1524682637-63219-1-git-send-email-kan.liang@linux.... Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/x86/events/intel/core.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-)
--- a/arch/x86/events/intel/core.c +++ b/arch/x86/events/intel/core.c @@ -3331,7 +3331,8 @@ static void intel_pmu_cpu_starting(int c
cpuc->lbr_sel = NULL;
- flip_smm_bit(&x86_pmu.attr_freeze_on_smi); + if (x86_pmu.version > 1) + flip_smm_bit(&x86_pmu.attr_freeze_on_smi);
if (!cpuc->shared_regs) return; @@ -3494,6 +3495,8 @@ static __initconst const struct x86_pmu .cpu_dying = intel_pmu_cpu_dying, };
+static struct attribute *intel_pmu_attrs[]; + static __initconst const struct x86_pmu intel_pmu = { .name = "Intel", .handle_irq = intel_pmu_handle_irq, @@ -3524,6 +3527,8 @@ static __initconst const struct x86_pmu .format_attrs = intel_arch3_formats_attr, .events_sysfs_show = intel_event_sysfs_show,
+ .attrs = intel_pmu_attrs, + .cpu_prepare = intel_pmu_cpu_prepare, .cpu_starting = intel_pmu_cpu_starting, .cpu_dying = intel_pmu_cpu_dying, @@ -3902,8 +3907,6 @@ __init int intel_pmu_init(void)
x86_pmu.max_pebs_events = min_t(unsigned, MAX_PEBS_EVENTS, x86_pmu.num_counters);
- - x86_pmu.attrs = intel_pmu_attrs; /* * Quirk: v2 perfmon does not report fixed-purpose events, so * assume at least 3 events, when not running in a hypervisor:
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Tobias Jordan Tobias.Jordan@elektrobit.com
[ Upstream commit 278d744c46fd4f1925aec77752d18a0e4a9cbec3 ]
Add missing of_node_put()s at two places for device nodes returned by of_parse_phandle().
Fixes: 051fb70fd4ea ("remoteproc: qcom: Driver for the self-authenticating Hexagon v5") Signed-off-by: Tobias Jordan Tobias.Jordan@elektrobit.com Signed-off-by: Bjorn Andersson bjorn.andersson@linaro.org Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/remoteproc/qcom_q6v5_pil.c | 2 ++ 1 file changed, 2 insertions(+)
--- a/drivers/remoteproc/qcom_q6v5_pil.c +++ b/drivers/remoteproc/qcom_q6v5_pil.c @@ -1088,6 +1088,7 @@ static int q6v5_alloc_memory_region(stru dev_err(qproc->dev, "unable to resolve mba region\n"); return ret; } + of_node_put(node);
qproc->mba_phys = r.start; qproc->mba_size = resource_size(&r); @@ -1105,6 +1106,7 @@ static int q6v5_alloc_memory_region(stru dev_err(qproc->dev, "unable to resolve mpss region\n"); return ret; } + of_node_put(node);
qproc->mpss_phys = qproc->mpss_reloc = r.start; qproc->mpss_size = resource_size(&r);
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Ramon Fried rfried@codeaurora.org
[ Upstream commit 93dd4e73c0d9cc32f835d76a54257020b0bfc75a ]
Added "rpmsg:rpmsg_chrdev" MODULE_ALIAS to autoload rpmg_chrdev module automatically.
Signed-off-by: Ramon Fried rfried@codeaurora.org Signed-off-by: Bjorn Andersson bjorn.andersson@linaro.org Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/rpmsg/rpmsg_char.c | 2 ++ 1 file changed, 2 insertions(+)
--- a/drivers/rpmsg/rpmsg_char.c +++ b/drivers/rpmsg/rpmsg_char.c @@ -581,4 +581,6 @@ static void rpmsg_chrdev_exit(void) unregister_chrdev_region(rpmsg_major, RPMSG_DEV_MAX); } module_exit(rpmsg_chrdev_exit); + +MODULE_ALIAS("rpmsg:rpmsg_chrdev"); MODULE_LICENSE("GPL v2");
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Arvind Yadav arvind.yadav.cs@gmail.com
[ Upstream commit a4eb490a41a0da3b1275fc7427084cf9ae2c3c1c ]
Never directly free @dev after calling device_register(), even if it returned an error. Always use put_device() to give up the reference initialized.
Signed-off-by: Arvind Yadav arvind.yadav.cs@gmail.com Signed-off-by: Jiri Kosina jkosina@suse.cz Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/hid/intel-ish-hid/ishtp/bus.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/hid/intel-ish-hid/ishtp/bus.c +++ b/drivers/hid/intel-ish-hid/ishtp/bus.c @@ -418,7 +418,7 @@ static struct ishtp_cl_device *ishtp_bus list_del(&device->device_link); spin_unlock_irqrestore(&dev->device_list_lock, flags); dev_err(dev->devc, "Failed to register ISHTP client device\n"); - kfree(device); + put_device(&device->dev); return NULL; }
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Omar Sandoval osandov@fb.com
[ Upstream commit bf0ddaba65ddbb2715af97041da8e7a45b2d8628 ]
When the blk-mq inflight implementation was added, /proc/diskstats was converted to use it, but /sys/block/$dev/inflight was not. Fix it by adding another helper to count in-flight requests by data direction.
Fixes: f299b7c7a9de ("blk-mq: provide internal in-flight variant") Signed-off-by: Omar Sandoval osandov@fb.com Signed-off-by: Jens Axboe axboe@kernel.dk Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- block/blk-mq.c | 19 +++++++++++++++++++ block/blk-mq.h | 4 +++- block/genhd.c | 12 ++++++++++++ block/partition-generic.c | 10 ++++++---- include/linux/genhd.h | 4 +++- 5 files changed, 43 insertions(+), 6 deletions(-)
--- a/block/blk-mq.c +++ b/block/blk-mq.c @@ -118,6 +118,25 @@ void blk_mq_in_flight(struct request_que blk_mq_queue_tag_busy_iter(q, blk_mq_check_inflight, &mi); }
+static void blk_mq_check_inflight_rw(struct blk_mq_hw_ctx *hctx, + struct request *rq, void *priv, + bool reserved) +{ + struct mq_inflight *mi = priv; + + if (rq->part == mi->part) + mi->inflight[rq_data_dir(rq)]++; +} + +void blk_mq_in_flight_rw(struct request_queue *q, struct hd_struct *part, + unsigned int inflight[2]) +{ + struct mq_inflight mi = { .part = part, .inflight = inflight, }; + + inflight[0] = inflight[1] = 0; + blk_mq_queue_tag_busy_iter(q, blk_mq_check_inflight_rw, &mi); +} + void blk_freeze_queue_start(struct request_queue *q) { int freeze_depth; --- a/block/blk-mq.h +++ b/block/blk-mq.h @@ -185,7 +185,9 @@ static inline bool blk_mq_hw_queue_mappe }
void blk_mq_in_flight(struct request_queue *q, struct hd_struct *part, - unsigned int inflight[2]); + unsigned int inflight[2]); +void blk_mq_in_flight_rw(struct request_queue *q, struct hd_struct *part, + unsigned int inflight[2]);
static inline void blk_mq_put_dispatch_budget(struct blk_mq_hw_ctx *hctx) { --- a/block/genhd.c +++ b/block/genhd.c @@ -82,6 +82,18 @@ void part_in_flight(struct request_queue } }
+void part_in_flight_rw(struct request_queue *q, struct hd_struct *part, + unsigned int inflight[2]) +{ + if (q->mq_ops) { + blk_mq_in_flight_rw(q, part, inflight); + return; + } + + inflight[0] = atomic_read(&part->in_flight[0]); + inflight[1] = atomic_read(&part->in_flight[1]); +} + struct hd_struct *__disk_get_part(struct gendisk *disk, int partno) { struct disk_part_tbl *ptbl = rcu_dereference(disk->part_tbl); --- a/block/partition-generic.c +++ b/block/partition-generic.c @@ -145,13 +145,15 @@ ssize_t part_stat_show(struct device *de jiffies_to_msecs(part_stat_read(p, time_in_queue))); }
-ssize_t part_inflight_show(struct device *dev, - struct device_attribute *attr, char *buf) +ssize_t part_inflight_show(struct device *dev, struct device_attribute *attr, + char *buf) { struct hd_struct *p = dev_to_part(dev); + struct request_queue *q = part_to_disk(p)->queue; + unsigned int inflight[2];
- return sprintf(buf, "%8u %8u\n", atomic_read(&p->in_flight[0]), - atomic_read(&p->in_flight[1])); + part_in_flight_rw(q, p, inflight); + return sprintf(buf, "%8u %8u\n", inflight[0], inflight[1]); }
#ifdef CONFIG_FAIL_MAKE_REQUEST --- a/include/linux/genhd.h +++ b/include/linux/genhd.h @@ -368,7 +368,9 @@ static inline void free_part_stats(struc part_stat_add(cpu, gendiskp, field, -subnd)
void part_in_flight(struct request_queue *q, struct hd_struct *part, - unsigned int inflight[2]); + unsigned int inflight[2]); +void part_in_flight_rw(struct request_queue *q, struct hd_struct *part, + unsigned int inflight[2]); void part_dec_in_flight(struct request_queue *q, struct hd_struct *part, int rw); void part_inc_in_flight(struct request_queue *q, struct hd_struct *part,
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Mark Rutland mark.rutland@arm.com
[ Upstream commit 19791a7ca674fb3009bb068260e852a2f05b605c ]
It's possible for userspace to control idx. Sanitize idx when using it as an array index.
Found by smatch.
Signed-off-by: Mark Rutland mark.rutland@arm.com Cc: Catalin Marinas catalin.marinas@arm.com Cc: Will Deacon will.deacon@arm.com Signed-off-by: Will Deacon will.deacon@arm.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/arm64/kernel/ptrace.c | 14 ++++++++++---- 1 file changed, 10 insertions(+), 4 deletions(-)
--- a/arch/arm64/kernel/ptrace.c +++ b/arch/arm64/kernel/ptrace.c @@ -25,6 +25,7 @@ #include <linux/sched/signal.h> #include <linux/sched/task_stack.h> #include <linux/mm.h> +#include <linux/nospec.h> #include <linux/smp.h> #include <linux/ptrace.h> #include <linux/user.h> @@ -249,15 +250,20 @@ static struct perf_event *ptrace_hbp_get
switch (note_type) { case NT_ARM_HW_BREAK: - if (idx < ARM_MAX_BRP) - bp = tsk->thread.debug.hbp_break[idx]; + if (idx >= ARM_MAX_BRP) + goto out; + idx = array_index_nospec(idx, ARM_MAX_BRP); + bp = tsk->thread.debug.hbp_break[idx]; break; case NT_ARM_HW_WATCH: - if (idx < ARM_MAX_WRP) - bp = tsk->thread.debug.hbp_watch[idx]; + if (idx >= ARM_MAX_WRP) + goto out; + idx = array_index_nospec(idx, ARM_MAX_WRP); + bp = tsk->thread.debug.hbp_watch[idx]; break; }
+out: return bp; }
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Mark Rutland mark.rutland@arm.com
[ Upstream commit 5e1ca5e23b167987d5b6d8b08f2d5b7dd2d13f49 ]
It's possible for userspace to control n. Sanitize n when using it as an array index.
Note that while it appears that n must be bound to the interval [0,3] due to the way it is extracted from addr, we cannot guarantee that compiler transformations (and/or future refactoring) will ensure this is the case, and given this is a slow path it's better to always perform the masking.
Found by smatch.
Signed-off-by: Mark Rutland mark.rutland@arm.com Acked-by: Christoffer Dall christoffer.dall@arm.com Acked-by: Marc Zyngier marc.zyngier@arm.com Cc: kvmarm@lists.cs.columbia.edu Signed-off-by: Will Deacon will.deacon@arm.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- virt/kvm/arm/vgic/vgic-mmio-v2.c | 5 +++++ 1 file changed, 5 insertions(+)
--- a/virt/kvm/arm/vgic/vgic-mmio-v2.c +++ b/virt/kvm/arm/vgic/vgic-mmio-v2.c @@ -14,6 +14,8 @@ #include <linux/irqchip/arm-gic.h> #include <linux/kvm.h> #include <linux/kvm_host.h> +#include <linux/nospec.h> + #include <kvm/iodev.h> #include <kvm/arm_vgic.h>
@@ -324,6 +326,9 @@ static unsigned long vgic_mmio_read_apr(
if (n > vgic_v3_max_apr_idx(vcpu)) return 0; + + n = array_index_nospec(n, 4); + /* GICv3 only uses ICH_AP1Rn for memory mapped (GICv2) guests */ return vgicv3->vgic_ap1r[n]; }
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Evan Wang xswang@marvell.com
[ Upstream commit fa89f53bd7288d6aa7a982841119e7123faf5a53 ]
Marvell armada37xx, armada7k and armada8k share the same AHCI sata controller IP, and currently there is an issue (Errata Ref#226)that the SATA can not be detected via SATA Port-MultiPlayer(PMP). After debugging, the reason is found that the value of Port-x FIS-based Switching Control (PxFBS@0x40) became wrong. According to design, the bits[11:8, 0] of register PxFBS are cleared when Port Command and Status (0x18) bit[0] changes its value from 1 to 0, i.e. falling edge of Port Command and Status bit[0] sends PULSE that resets PxFBS bits[11:8; 0]. So it needs save the port PxFBS register before PxCMD ST write and restore the port PxFBS register afterwards in ahci_stop_engine().
This commit allows drivers to override ahci_stop_engine behavior for use by the Marvell AHCI driver(and potentially other drivers in the future).
Signed-off-by: Evan Wang xswang@marvell.com Cc: Ofer Heifetz oferh@marvell.com Cc: Tejun Heo tj@kernel.org Cc: Thomas Petazzoni thomas.petazzoni@bootlin.com Signed-off-by: Tejun Heo tj@kernel.org Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/ata/ahci.c | 6 +++--- drivers/ata/ahci.h | 7 +++++++ drivers/ata/ahci_qoriq.c | 2 +- drivers/ata/ahci_xgene.c | 4 ++-- drivers/ata/libahci.c | 20 ++++++++++++-------- drivers/ata/sata_highbank.c | 2 +- 6 files changed, 26 insertions(+), 15 deletions(-)
--- a/drivers/ata/ahci.c +++ b/drivers/ata/ahci.c @@ -699,7 +699,7 @@ static int ahci_vt8251_hardreset(struct
DPRINTK("ENTER\n");
- ahci_stop_engine(ap); + hpriv->stop_engine(ap);
rc = sata_link_hardreset(link, sata_ehc_deb_timing(&link->eh_context), deadline, &online, NULL); @@ -725,7 +725,7 @@ static int ahci_p5wdh_hardreset(struct a bool online; int rc;
- ahci_stop_engine(ap); + hpriv->stop_engine(ap);
/* clear D2H reception area to properly wait for D2H FIS */ ata_tf_init(link->device, &tf); @@ -789,7 +789,7 @@ static int ahci_avn_hardreset(struct ata
DPRINTK("ENTER\n");
- ahci_stop_engine(ap); + hpriv->stop_engine(ap);
for (i = 0; i < 2; i++) { u16 val; --- a/drivers/ata/ahci.h +++ b/drivers/ata/ahci.h @@ -365,6 +365,13 @@ struct ahci_host_priv { * be overridden anytime before the host is activated. */ void (*start_engine)(struct ata_port *ap); + /* + * Optional ahci_stop_engine override, if not set this gets set to the + * default ahci_stop_engine during ahci_save_initial_config, this can + * be overridden anytime before the host is activated. + */ + int (*stop_engine)(struct ata_port *ap); + irqreturn_t (*irq_handler)(int irq, void *dev_instance);
/* only required for per-port MSI(-X) support */ --- a/drivers/ata/ahci_qoriq.c +++ b/drivers/ata/ahci_qoriq.c @@ -96,7 +96,7 @@ static int ahci_qoriq_hardreset(struct a
DPRINTK("ENTER\n");
- ahci_stop_engine(ap); + hpriv->stop_engine(ap);
/* * There is a errata on ls1021a Rev1.0 and Rev2.0 which is: --- a/drivers/ata/ahci_xgene.c +++ b/drivers/ata/ahci_xgene.c @@ -165,7 +165,7 @@ static int xgene_ahci_restart_engine(str PORT_CMD_ISSUE, 0x0, 1, 100)) return -EBUSY;
- ahci_stop_engine(ap); + hpriv->stop_engine(ap); ahci_start_fis_rx(ap);
/* @@ -421,7 +421,7 @@ static int xgene_ahci_hardreset(struct a portrxfis_saved = readl(port_mmio + PORT_FIS_ADDR); portrxfishi_saved = readl(port_mmio + PORT_FIS_ADDR_HI);
- ahci_stop_engine(ap); + hpriv->stop_engine(ap);
rc = xgene_ahci_do_hardreset(link, deadline, &online);
--- a/drivers/ata/libahci.c +++ b/drivers/ata/libahci.c @@ -560,6 +560,9 @@ void ahci_save_initial_config(struct dev if (!hpriv->start_engine) hpriv->start_engine = ahci_start_engine;
+ if (!hpriv->stop_engine) + hpriv->stop_engine = ahci_stop_engine; + if (!hpriv->irq_handler) hpriv->irq_handler = ahci_single_level_irq_intr; } @@ -897,9 +900,10 @@ static void ahci_start_port(struct ata_p static int ahci_deinit_port(struct ata_port *ap, const char **emsg) { int rc; + struct ahci_host_priv *hpriv = ap->host->private_data;
/* disable DMA */ - rc = ahci_stop_engine(ap); + rc = hpriv->stop_engine(ap); if (rc) { *emsg = "failed to stop engine"; return rc; @@ -1310,7 +1314,7 @@ int ahci_kick_engine(struct ata_port *ap int busy, rc;
/* stop engine */ - rc = ahci_stop_engine(ap); + rc = hpriv->stop_engine(ap); if (rc) goto out_restart;
@@ -1549,7 +1553,7 @@ int ahci_do_hardreset(struct ata_link *l
DPRINTK("ENTER\n");
- ahci_stop_engine(ap); + hpriv->stop_engine(ap);
/* clear D2H reception area to properly wait for D2H FIS */ ata_tf_init(link->device, &tf); @@ -2075,14 +2079,14 @@ void ahci_error_handler(struct ata_port
if (!(ap->pflags & ATA_PFLAG_FROZEN)) { /* restart engine */ - ahci_stop_engine(ap); + hpriv->stop_engine(ap); hpriv->start_engine(ap); }
sata_pmp_error_handler(ap);
if (!ata_dev_enabled(ap->link.device)) - ahci_stop_engine(ap); + hpriv->stop_engine(ap); } EXPORT_SYMBOL_GPL(ahci_error_handler);
@@ -2129,7 +2133,7 @@ static void ahci_set_aggressive_devslp(s return;
/* set DITO, MDAT, DETO and enable DevSlp, need to stop engine first */ - rc = ahci_stop_engine(ap); + rc = hpriv->stop_engine(ap); if (rc) return;
@@ -2189,7 +2193,7 @@ static void ahci_enable_fbs(struct ata_p return; }
- rc = ahci_stop_engine(ap); + rc = hpriv->stop_engine(ap); if (rc) return;
@@ -2222,7 +2226,7 @@ static void ahci_disable_fbs(struct ata_ return; }
- rc = ahci_stop_engine(ap); + rc = hpriv->stop_engine(ap); if (rc) return;
--- a/drivers/ata/sata_highbank.c +++ b/drivers/ata/sata_highbank.c @@ -410,7 +410,7 @@ static int ahci_highbank_hardreset(struc int rc; int retry = 100;
- ahci_stop_engine(ap); + hpriv->stop_engine(ap);
/* clear D2H reception area to properly wait for D2H FIS */ ata_tf_init(link->device, &tf);
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Evan Wang xswang@marvell.com
[ Upstream commit daa2e3bdbb0b3e691cf20a042350817310cb8cb5 ]
There is an issue(Errata Ref#226) that the SATA can not be detected via SATA Port-MultiPlayer(PMP) with following error log: ata1.15: PMP product ID mismatch ata1.15: SATA link up 6.0 Gbps (SStatus 133 SControl 300) ata1.15: Port Multiplier vendor mismatch '0x1b4b'!='0x0' ata1.15: PMP revalidation failed (errno=-19)
After debugging, the reason is found that the value Port-x FIS-based Switching Control(PxFBS@0x40) become wrong. According to design, the bits[11:8, 0] of register PxFBS are cleared when Port Command and Status (0x18) bit[0] changes its value from 1 to 0, i.e. falling edge of Port Command and Status bit[0] sends PULSE that resets PxFBS bits[11:8; 0]. So it needs a mvebu SATA WA to save the port PxFBS register before PxCMD ST write and restore it afterwards.
This patch implements the WA in a separate function of ahci_mvebu_stop_engine to override ahci_stop_gngine.
Signed-off-by: Evan Wang xswang@marvell.com Cc: Ofer Heifetz oferh@marvell.com Cc: Tejun Heo tj@kernel.org Cc: Thomas Petazzoni thomas.petazzoni@bootlin.com Signed-off-by: Tejun Heo tj@kernel.org Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/ata/ahci_mvebu.c | 56 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 56 insertions(+)
--- a/drivers/ata/ahci_mvebu.c +++ b/drivers/ata/ahci_mvebu.c @@ -62,6 +62,60 @@ static void ahci_mvebu_regret_option(str writel(0x80, hpriv->mmio + AHCI_VENDOR_SPECIFIC_0_DATA); }
+/** + * ahci_mvebu_stop_engine + * + * @ap: Target ata port + * + * Errata Ref#226 - SATA Disk HOT swap issue when connected through + * Port Multiplier in FIS-based Switching mode. + * + * To avoid the issue, according to design, the bits[11:8, 0] of + * register PxFBS are cleared when Port Command and Status (0x18) bit[0] + * changes its value from 1 to 0, i.e. falling edge of Port + * Command and Status bit[0] sends PULSE that resets PxFBS + * bits[11:8; 0]. + * + * This function is used to override function of "ahci_stop_engine" + * from libahci.c by adding the mvebu work around(WA) to save PxFBS + * value before the PxCMD ST write of 0, then restore PxFBS value. + * + * Return: 0 on success; Error code otherwise. + */ +int ahci_mvebu_stop_engine(struct ata_port *ap) +{ + void __iomem *port_mmio = ahci_port_base(ap); + u32 tmp, port_fbs; + + tmp = readl(port_mmio + PORT_CMD); + + /* check if the HBA is idle */ + if ((tmp & (PORT_CMD_START | PORT_CMD_LIST_ON)) == 0) + return 0; + + /* save the port PxFBS register for later restore */ + port_fbs = readl(port_mmio + PORT_FBS); + + /* setting HBA to idle */ + tmp &= ~PORT_CMD_START; + writel(tmp, port_mmio + PORT_CMD); + + /* + * bit #15 PxCMD signal doesn't clear PxFBS, + * restore the PxFBS register right after clearing the PxCMD ST, + * no need to wait for the PxCMD bit #15. + */ + writel(port_fbs, port_mmio + PORT_FBS); + + /* wait for engine to stop. This could be as long as 500 msec */ + tmp = ata_wait_register(ap, port_mmio + PORT_CMD, + PORT_CMD_LIST_ON, PORT_CMD_LIST_ON, 1, 500); + if (tmp & PORT_CMD_LIST_ON) + return -EIO; + + return 0; +} + #ifdef CONFIG_PM_SLEEP static int ahci_mvebu_suspend(struct platform_device *pdev, pm_message_t state) { @@ -112,6 +166,8 @@ static int ahci_mvebu_probe(struct platf if (rc) return rc;
+ hpriv->stop_engine = ahci_mvebu_stop_engine; + if (of_device_is_compatible(pdev->dev.of_node, "marvell,armada-380-ahci")) { dram = mv_mbus_dram_info();
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: "jacek.tomaka@poczta.fm" jacek.tomaka@poczta.fm
[ Upstream commit b837913fc2d9061bf9b8c0dd6bf2d24e2f98b84a ]
Make kernel print the correct number of TLB entries on Intel Xeon Phi 7210 (and others)
Before: [ 0.320005] Last level dTLB entries: 4KB 0, 2MB 0, 4MB 0, 1GB 0 After: [ 0.320005] Last level dTLB entries: 4KB 256, 2MB 128, 4MB 128, 1GB 16
The entries do exist in the official Intel SMD but the type column there is incorrect (states "Cache" where it should read "TLB"), but the entries for the values 0x6B, 0x6C and 0x6D are correctly described as 'Data TLB'.
Signed-off-by: Jacek Tomaka jacek.tomaka@poczta.fm Signed-off-by: Thomas Gleixner tglx@linutronix.de Link: https://lkml.kernel.org/r/20180423161425.24366-1-jacekt@dugeo.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/x86/kernel/cpu/intel.c | 3 +++ 1 file changed, 3 insertions(+)
--- a/arch/x86/kernel/cpu/intel.c +++ b/arch/x86/kernel/cpu/intel.c @@ -751,6 +751,9 @@ static const struct _tlb_table intel_tlb { 0x5d, TLB_DATA_4K_4M, 256, " TLB_DATA 4 KByte and 4 MByte pages" }, { 0x61, TLB_INST_4K, 48, " TLB_INST 4 KByte pages, full associative" }, { 0x63, TLB_DATA_1G, 4, " TLB_DATA 1 GByte pages, 4-way set associative" }, + { 0x6b, TLB_DATA_4K, 256, " TLB_DATA 4 KByte pages, 8-way associative" }, + { 0x6c, TLB_DATA_2M_4M, 128, " TLB_DATA 2 MByte or 4 MByte pages, 8-way associative" }, + { 0x6d, TLB_DATA_1G, 16, " TLB_DATA 1 GByte pages, fully associative" }, { 0x76, TLB_INST_2M_4M, 8, " TLB_INST 2-MByte or 4-MByte pages, fully associative" }, { 0xb0, TLB_INST_4K, 128, " TLB_INST 4 KByte pages, 4-way set associative" }, { 0xb1, TLB_INST_2M_4M, 4, " TLB_INST 2M pages, 4-way, 8 entries or 4M pages, 4-way entries" },
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Stefano Brivio sbrivio@redhat.com
[ Upstream commit b4331a681822b420511b3258f1c3db35001fde48 ]
A vti6 interface can carry IPv4 as well, so it makes no sense to enforce a minimum MTU of IPV6_MIN_MTU.
If the user sets an MTU below IPV6_MIN_MTU, IPv6 will be disabled on the interface, courtesy of addrconf_notify().
Reported-by: Xin Long lucien.xin@gmail.com Fixes: b96f9afee4eb ("ipv4/6: use core net MTU range checking") Fixes: c6741fbed6dc ("vti6: Properly adjust vti6 MTU from MTU of lower device") Fixes: 53c81e95df17 ("ip6_vti: adjust vti mtu according to mtu of lower device") Signed-off-by: Stefano Brivio sbrivio@redhat.com Signed-off-by: Steffen Klassert steffen.klassert@secunet.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- net/ipv6/ip6_vti.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
--- a/net/ipv6/ip6_vti.c +++ b/net/ipv6/ip6_vti.c @@ -669,7 +669,7 @@ static void vti6_link_config(struct ip6_ else mtu = ETH_DATA_LEN - LL_MAX_HEADER - sizeof(struct ipv6hdr);
- dev->mtu = max_t(int, mtu, IPV6_MIN_MTU); + dev->mtu = max_t(int, mtu, IPV4_MIN_MTU); }
/** @@ -881,7 +881,7 @@ static void vti6_dev_setup(struct net_de dev->priv_destructor = vti6_dev_free;
dev->type = ARPHRD_TUNNEL6; - dev->min_mtu = IPV6_MIN_MTU; + dev->min_mtu = IPV4_MIN_MTU; dev->max_mtu = IP_MAX_MTU - sizeof(struct ipv6hdr); dev->flags |= IFF_NOARP; dev->addr_len = sizeof(struct in6_addr);
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Laurentiu Tudor laurentiu.tudor@nxp.com
[ Upstream commit b2d7ecbe355698010a6b7a15eb179e09eb3d6a34 ]
Add missing "altivec unavailable" interrupt injection helper thus fixing the linker error below:
arch/powerpc/kvm/emulate_loadstore.o: In function `kvmppc_check_altivec_disabled': arch/powerpc/kvm/emulate_loadstore.c: undefined reference to `.kvmppc_core_queue_vec_unavail'
Fixes: 09f984961c137c4b ("KVM: PPC: Book3S: Add MMIO emulation for VMX instructions") Signed-off-by: Laurentiu Tudor laurentiu.tudor@nxp.com Signed-off-by: Michael Ellerman mpe@ellerman.id.au Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/powerpc/kvm/booke.c | 7 +++++++ 1 file changed, 7 insertions(+)
--- a/arch/powerpc/kvm/booke.c +++ b/arch/powerpc/kvm/booke.c @@ -305,6 +305,13 @@ void kvmppc_core_queue_fpunavail(struct kvmppc_booke_queue_irqprio(vcpu, BOOKE_IRQPRIO_FP_UNAVAIL); }
+#ifdef CONFIG_ALTIVEC +void kvmppc_core_queue_vec_unavail(struct kvm_vcpu *vcpu) +{ + kvmppc_booke_queue_irqprio(vcpu, BOOKE_IRQPRIO_ALTIVEC_UNAVAIL); +} +#endif + void kvmppc_core_queue_dec(struct kvm_vcpu *vcpu) { kvmppc_booke_queue_irqprio(vcpu, BOOKE_IRQPRIO_DECREMENTER);
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Masahiro Yamada yamada.masahiro@socionext.com
[ Upstream commit e6914365fd280fce303a89b8a8d4529af5a2e0f9 ]
For LD20, the bit 5 of the offset 0x200c turned out to be a USB3 reset. The hardware document says it is the GIO reset despite LD20 has no GIO bus, confusingly.
Also, fix confusing comments for PXs3.
Signed-off-by: Masahiro Yamada yamada.masahiro@socionext.com Signed-off-by: Philipp Zabel p.zabel@pengutronix.de Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/reset/reset-uniphier.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-)
--- a/drivers/reset/reset-uniphier.c +++ b/drivers/reset/reset-uniphier.c @@ -107,7 +107,7 @@ static const struct uniphier_reset_data UNIPHIER_RESETX(4, 0x200c, 2), /* eMMC */ UNIPHIER_RESETX(6, 0x200c, 6), /* Ether */ UNIPHIER_RESETX(8, 0x200c, 8), /* STDMAC (HSC) */ - UNIPHIER_RESETX(12, 0x200c, 5), /* GIO (PCIe, USB3) */ + UNIPHIER_RESETX(14, 0x200c, 5), /* USB30 */ UNIPHIER_RESETX(16, 0x200c, 12), /* USB30-PHY0 */ UNIPHIER_RESETX(17, 0x200c, 13), /* USB30-PHY1 */ UNIPHIER_RESETX(18, 0x200c, 14), /* USB30-PHY2 */ @@ -122,8 +122,8 @@ static const struct uniphier_reset_data UNIPHIER_RESETX(2, 0x200c, 0), /* NAND */ UNIPHIER_RESETX(4, 0x200c, 2), /* eMMC */ UNIPHIER_RESETX(8, 0x200c, 12), /* STDMAC */ - UNIPHIER_RESETX(12, 0x200c, 4), /* USB30 link (GIO0) */ - UNIPHIER_RESETX(13, 0x200c, 5), /* USB31 link (GIO1) */ + UNIPHIER_RESETX(12, 0x200c, 4), /* USB30 link */ + UNIPHIER_RESETX(13, 0x200c, 5), /* USB31 link */ UNIPHIER_RESETX(16, 0x200c, 16), /* USB30-PHY0 */ UNIPHIER_RESETX(17, 0x200c, 18), /* USB30-PHY1 */ UNIPHIER_RESETX(18, 0x200c, 20), /* USB30-PHY2 */
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Baolin Wang baolin.wang@linaro.org
[ Upstream commit da33aa03fa34c918faf2c371ebda0dd961d7ccb2 ]
Add one flag to indicate if the i2c controller has been in suspend state, which can prevent i2c accesses after i2c controller is suspended following system suspend.
Signed-off-by: Baolin Wang baolin.wang@linaro.org Signed-off-by: Wolfram Sang wsa@the-dreams.de Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/i2c/busses/i2c-sprd.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+)
--- a/drivers/i2c/busses/i2c-sprd.c +++ b/drivers/i2c/busses/i2c-sprd.c @@ -86,6 +86,7 @@ struct sprd_i2c { u32 count; int irq; int err; + bool is_suspended; };
static void sprd_i2c_set_count(struct sprd_i2c *i2c_dev, u32 count) @@ -283,6 +284,9 @@ static int sprd_i2c_master_xfer(struct i struct sprd_i2c *i2c_dev = i2c_adap->algo_data; int im, ret;
+ if (i2c_dev->is_suspended) + return -EBUSY; + ret = pm_runtime_get_sync(i2c_dev->dev); if (ret < 0) return ret; @@ -586,11 +590,23 @@ static int sprd_i2c_remove(struct platfo
static int __maybe_unused sprd_i2c_suspend_noirq(struct device *pdev) { + struct sprd_i2c *i2c_dev = dev_get_drvdata(pdev); + + i2c_lock_adapter(&i2c_dev->adap); + i2c_dev->is_suspended = true; + i2c_unlock_adapter(&i2c_dev->adap); + return pm_runtime_force_suspend(pdev); }
static int __maybe_unused sprd_i2c_resume_noirq(struct device *pdev) { + struct sprd_i2c *i2c_dev = dev_get_drvdata(pdev); + + i2c_lock_adapter(&i2c_dev->adap); + i2c_dev->is_suspended = false; + i2c_unlock_adapter(&i2c_dev->adap); + return pm_runtime_force_resume(pdev); }
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Baolin Wang baolin.wang@linaro.org
[ Upstream commit 2a010461207cc96bee5ab81748325dec1972976f ]
We found the I2C controller count register is unreliable sometimes, that will cause I2C to lose data. Thus we can read the data count from 'i2c_dev->count' instead of the I2C controller count register.
Signed-off-by: Baolin Wang baolin.wang@linaro.org Signed-off-by: Wolfram Sang wsa@the-dreams.de Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/i2c/busses/i2c-sprd.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-)
--- a/drivers/i2c/busses/i2c-sprd.c +++ b/drivers/i2c/busses/i2c-sprd.c @@ -368,13 +368,12 @@ static irqreturn_t sprd_i2c_isr_thread(i struct sprd_i2c *i2c_dev = dev_id; struct i2c_msg *msg = i2c_dev->msg; bool ack = !(readl(i2c_dev->base + I2C_STATUS) & I2C_RX_ACK); - u32 i2c_count = readl(i2c_dev->base + I2C_COUNT); u32 i2c_tran;
if (msg->flags & I2C_M_RD) i2c_tran = i2c_dev->count >= I2C_FIFO_FULL_THLD; else - i2c_tran = i2c_count; + i2c_tran = i2c_dev->count;
/* * If we got one ACK from slave when writing data, and we did not @@ -412,14 +411,13 @@ static irqreturn_t sprd_i2c_isr(int irq, { struct sprd_i2c *i2c_dev = dev_id; struct i2c_msg *msg = i2c_dev->msg; - u32 i2c_count = readl(i2c_dev->base + I2C_COUNT); bool ack = !(readl(i2c_dev->base + I2C_STATUS) & I2C_RX_ACK); u32 i2c_tran;
if (msg->flags & I2C_M_RD) i2c_tran = i2c_dev->count >= I2C_FIFO_FULL_THLD; else - i2c_tran = i2c_count; + i2c_tran = i2c_dev->count;
/* * If we did not get one ACK from slave when writing data, then we
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Leon Romanovsky leonro@mellanox.com
[ Upstream commit 444261ca6ff201fa03de97a5041237e67a9d8d31 ]
Starting from commit 72f36be06138 ("net/mlx5: Fix mlx5_get_uars_page to return error code") the mlx5_get_uars_page() call returns error in case of failure, but it was mistakenly overlooked in the merge commit.
Fixes: e7996a9a77fc ("Merge tag v4.15 of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.git") Reported-by: Alaa Hleihel alaa@mellanox.com Signed-off-by: Leon Romanovsky leonro@mellanox.com Signed-off-by: Doug Ledford dledford@redhat.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/infiniband/hw/mlx5/main.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-)
--- a/drivers/infiniband/hw/mlx5/main.c +++ b/drivers/infiniband/hw/mlx5/main.c @@ -4833,9 +4833,7 @@ static void mlx5_ib_stage_cong_debugfs_c static int mlx5_ib_stage_uar_init(struct mlx5_ib_dev *dev) { dev->mdev->priv.uar = mlx5_get_uars_page(dev->mdev); - if (!dev->mdev->priv.uar) - return -ENOMEM; - return 0; + return PTR_ERR_OR_ZERO(dev->mdev->priv.uar); }
static void mlx5_ib_stage_uar_cleanup(struct mlx5_ib_dev *dev)
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Jon Maloy jon.maloy@ericsson.com
[ Upstream commit 7dbc73e6124ce4d0cfbdd6166de388e9367c47ad ]
Commit 36a50a989ee8 ("tipc: fix infinite loop when dumping link monitor summary") intended to fix a problem with user tool looping when max number of bearers are enabled.
Unfortunately, the wrong version of the commit was posted, so the problem was not solved at all.
This commit adds the missing part.
Fixes: 36a50a989ee8 ("tipc: fix infinite loop when dumping link monitor summary") Signed-off-by: Jon Maloy jon.maloy@ericsson.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- net/tipc/node.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/net/tipc/node.c +++ b/net/tipc/node.c @@ -2157,7 +2157,7 @@ int tipc_nl_node_dump_monitor(struct sk_
rtnl_lock(); for (bearer_id = prev_bearer; bearer_id < MAX_BEARERS; bearer_id++) { - err = __tipc_nl_add_monitor(net, &msg, prev_bearer); + err = __tipc_nl_add_monitor(net, &msg, bearer_id); if (err) break; }
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Jakub Kicinski jakub.kicinski@netronome.com
[ Upstream commit c55ca688ed99a9cb79367aee2ed2ff6cb80fc039 ]
For very very old generation of the management FW Ethernet port information table may theoretically not be available. This in turn will cause the nfp_port structures to not be allocated.
Make sure we don't crash the kernel when there is no eth_tbl:
RIP: 0010:nfp_net_pci_probe+0xf2/0xb40 [nfp] ... Call Trace: nfp_pci_probe+0x6de/0xab0 [nfp] local_pci_probe+0x47/0xa0 work_for_cpu_fn+0x1a/0x30 process_one_work+0x1de/0x3e0
Found while working with broken/development version of management FW.
Fixes: a5950182c00e ("nfp: map mac_stats and vf_cfg BARs") Fixes: 93da7d9660ee ("nfp: provide nfp_port to of nfp_net_get_mac_addr()") Signed-off-by: Jakub Kicinski jakub.kicinski@netronome.com Reviewed-by: Dirk van der Merwe dirk.vandermerwe@netronome.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/net/ethernet/netronome/nfp/flower/main.c | 2 - drivers/net/ethernet/netronome/nfp/nfp_app_nic.c | 2 - drivers/net/ethernet/netronome/nfp/nfp_main.h | 4 ++ drivers/net/ethernet/netronome/nfp/nfp_net_main.c | 31 ++++++++++++---------- 4 files changed, 23 insertions(+), 16 deletions(-)
--- a/drivers/net/ethernet/netronome/nfp/flower/main.c +++ b/drivers/net/ethernet/netronome/nfp/flower/main.c @@ -358,7 +358,7 @@ nfp_flower_spawn_phy_reprs(struct nfp_ap }
SET_NETDEV_DEV(repr, &priv->nn->pdev->dev); - nfp_net_get_mac_addr(app->pf, port); + nfp_net_get_mac_addr(app->pf, repr, port);
cmsg_port_id = nfp_flower_cmsg_phys_port(phys_port); err = nfp_repr_init(app, repr, --- a/drivers/net/ethernet/netronome/nfp/nfp_app_nic.c +++ b/drivers/net/ethernet/netronome/nfp/nfp_app_nic.c @@ -69,7 +69,7 @@ int nfp_app_nic_vnic_alloc(struct nfp_ap if (err) return err < 0 ? err : 0;
- nfp_net_get_mac_addr(app->pf, nn->port); + nfp_net_get_mac_addr(app->pf, nn->dp.netdev, nn->port);
return 0; } --- a/drivers/net/ethernet/netronome/nfp/nfp_main.h +++ b/drivers/net/ethernet/netronome/nfp/nfp_main.h @@ -171,7 +171,9 @@ void nfp_net_pci_remove(struct nfp_pf *p int nfp_hwmon_register(struct nfp_pf *pf); void nfp_hwmon_unregister(struct nfp_pf *pf);
-void nfp_net_get_mac_addr(struct nfp_pf *pf, struct nfp_port *port); +void +nfp_net_get_mac_addr(struct nfp_pf *pf, struct net_device *netdev, + struct nfp_port *port);
bool nfp_ctrl_tx(struct nfp_net *nn, struct sk_buff *skb);
--- a/drivers/net/ethernet/netronome/nfp/nfp_net_main.c +++ b/drivers/net/ethernet/netronome/nfp/nfp_net_main.c @@ -67,23 +67,26 @@ /** * nfp_net_get_mac_addr() - Get the MAC address. * @pf: NFP PF handle + * @netdev: net_device to set MAC address on * @port: NFP port structure * * First try to get the MAC address from NSP ETH table. If that * fails generate a random address. */ -void nfp_net_get_mac_addr(struct nfp_pf *pf, struct nfp_port *port) +void +nfp_net_get_mac_addr(struct nfp_pf *pf, struct net_device *netdev, + struct nfp_port *port) { struct nfp_eth_table_port *eth_port;
eth_port = __nfp_port_get_eth_port(port); if (!eth_port) { - eth_hw_addr_random(port->netdev); + eth_hw_addr_random(netdev); return; }
- ether_addr_copy(port->netdev->dev_addr, eth_port->mac_addr); - ether_addr_copy(port->netdev->perm_addr, eth_port->mac_addr); + ether_addr_copy(netdev->dev_addr, eth_port->mac_addr); + ether_addr_copy(netdev->perm_addr, eth_port->mac_addr); }
static struct nfp_eth_table_port * @@ -511,16 +514,18 @@ static int nfp_net_pci_map_mem(struct nf return PTR_ERR(mem); }
- min_size = NFP_MAC_STATS_SIZE * (pf->eth_tbl->max_index + 1); - pf->mac_stats_mem = nfp_rtsym_map(pf->rtbl, "_mac_stats", - "net.macstats", min_size, - &pf->mac_stats_bar); - if (IS_ERR(pf->mac_stats_mem)) { - if (PTR_ERR(pf->mac_stats_mem) != -ENOENT) { - err = PTR_ERR(pf->mac_stats_mem); - goto err_unmap_ctrl; + if (pf->eth_tbl) { + min_size = NFP_MAC_STATS_SIZE * (pf->eth_tbl->max_index + 1); + pf->mac_stats_mem = nfp_rtsym_map(pf->rtbl, "_mac_stats", + "net.macstats", min_size, + &pf->mac_stats_bar); + if (IS_ERR(pf->mac_stats_mem)) { + if (PTR_ERR(pf->mac_stats_mem) != -ENOENT) { + err = PTR_ERR(pf->mac_stats_mem); + goto err_unmap_ctrl; + } + pf->mac_stats_mem = NULL; } - pf->mac_stats_mem = NULL; }
pf->vf_cfg_mem = nfp_net_pf_map_rtsym(pf, "net.vfcfg",
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Greg Thelen gthelen@google.com
[ Upstream commit 3af7a156bdc356946098e13180be66b6420619bf ]
NVME_RDMA code depends on INFINIBAND_ADDR_TRANS provided symbols. So declare the kconfig dependency. This is necessary to allow for enabling INFINIBAND without INFINIBAND_ADDR_TRANS.
Signed-off-by: Greg Thelen gthelen@google.com Cc: Tarick Bedeir tarick@google.com Signed-off-by: Doug Ledford dledford@redhat.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/nvme/host/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/nvme/host/Kconfig +++ b/drivers/nvme/host/Kconfig @@ -27,7 +27,7 @@ config NVME_FABRICS
config NVME_RDMA tristate "NVM Express over Fabrics RDMA host driver" - depends on INFINIBAND && BLOCK + depends on INFINIBAND && INFINIBAND_ADDR_TRANS && BLOCK select NVME_CORE select NVME_FABRICS select SG_POOL
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Greg Thelen gthelen@google.com
[ Upstream commit d6fc6a22fc7d3df987666725496ed5dd2dd30f23 ]
NVME_TARGET_RDMA code depends on INFINIBAND_ADDR_TRANS provided symbols. So declare the kconfig dependency. This is necessary to allow for enabling INFINIBAND without INFINIBAND_ADDR_TRANS.
Signed-off-by: Greg Thelen gthelen@google.com Cc: Tarick Bedeir tarick@google.com Signed-off-by: Doug Ledford dledford@redhat.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/nvme/target/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/nvme/target/Kconfig +++ b/drivers/nvme/target/Kconfig @@ -27,7 +27,7 @@ config NVME_TARGET_LOOP
config NVME_TARGET_RDMA tristate "NVMe over Fabrics RDMA target support" - depends on INFINIBAND + depends on INFINIBAND && INFINIBAND_ADDR_TRANS depends on NVME_TARGET select SGL_ALLOC help
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Greg Thelen gthelen@google.com
[ Upstream commit 346a47b65d10e450778ec0d21e4a9409f25daaa8 ]
INFINIBAND_SRPT code depends on INFINIBAND_ADDR_TRANS provided symbols. So declare the kconfig dependency. This is necessary to allow for enabling INFINIBAND without INFINIBAND_ADDR_TRANS.
Signed-off-by: Greg Thelen gthelen@google.com Cc: Tarick Bedeir tarick@google.com Reviewed-by: Bart Van Assche bart.vanassche@wdc.com Signed-off-by: Doug Ledford dledford@redhat.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/infiniband/ulp/srpt/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/infiniband/ulp/srpt/Kconfig +++ b/drivers/infiniband/ulp/srpt/Kconfig @@ -1,6 +1,6 @@ config INFINIBAND_SRPT tristate "InfiniBand SCSI RDMA Protocol target support" - depends on INFINIBAND && TARGET_CORE + depends on INFINIBAND && INFINIBAND_ADDR_TRANS && TARGET_CORE ---help---
Support for the SCSI RDMA Protocol (SRP) Target driver. The
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Greg Thelen gthelen@google.com
[ Upstream commit 3c6b03d18df657d677808d7090b4d03bc6026efd ]
CIFS_SMB_DIRECT code depends on INFINIBAND_ADDR_TRANS provided symbols. So declare the kconfig dependency. This is necessary to allow for enabling INFINIBAND without INFINIBAND_ADDR_TRANS.
Signed-off-by: Greg Thelen gthelen@google.com Cc: Tarick Bedeir tarick@google.com Reviewed-by: Long Li longli@microsoft.com Signed-off-by: Doug Ledford dledford@redhat.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- fs/cifs/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/fs/cifs/Kconfig +++ b/fs/cifs/Kconfig @@ -198,7 +198,7 @@ config CIFS_SMB311
config CIFS_SMB_DIRECT bool "SMB Direct support (Experimental)" - depends on CIFS=m && INFINIBAND || CIFS=y && INFINIBAND=y + depends on CIFS=m && INFINIBAND && INFINIBAND_ADDR_TRANS || CIFS=y && INFINIBAND=y && INFINIBAND_ADDR_TRANS=y help Enables SMB Direct experimental support for SMB 3.0, 3.02 and 3.1.1. SMB Direct allows transferring SMB packets over RDMA. If unsure,
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Greg Thelen gthelen@google.com
[ Upstream commit 5a3bc8a4abbd2d553430218d3a320400dce811b7 ]
INFINIBAND_SRP code depends on INFINIBAND_ADDR_TRANS provided symbols. So declare the kconfig dependency. This is necessary to allow for enabling INFINIBAND without INFINIBAND_ADDR_TRANS.
Signed-off-by: Greg Thelen gthelen@google.com Cc: Tarick Bedeir tarick@google.com Reviewed-by: Bart Van Assche bart.vanassche@wdc.com Signed-off-by: Doug Ledford dledford@redhat.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/infiniband/ulp/srp/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/infiniband/ulp/srp/Kconfig +++ b/drivers/infiniband/ulp/srp/Kconfig @@ -1,6 +1,6 @@ config INFINIBAND_SRP tristate "InfiniBand SCSI RDMA Protocol" - depends on SCSI + depends on SCSI && INFINIBAND_ADDR_TRANS select SCSI_SRP_ATTRS ---help--- Support for the SCSI RDMA Protocol over InfiniBand. This
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Greg Thelen gthelen@google.com
[ Upstream commit f7cb7b85be55a4906b4b4b30596db1043dae6335 ]
Allow INFINIBAND without INFINIBAND_ADDR_TRANS because fuzzing has been finding fair number of CM bugs. So provide option to disable it.
Signed-off-by: Greg Thelen gthelen@google.com Cc: Tarick Bedeir tarick@google.com Reviewed-by: Bart Van Assche bart.vanassche@wdc.com Signed-off-by: Doug Ledford dledford@redhat.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/infiniband/Kconfig | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-)
--- a/drivers/infiniband/Kconfig +++ b/drivers/infiniband/Kconfig @@ -62,9 +62,12 @@ config INFINIBAND_ON_DEMAND_PAGING pages on demand instead.
config INFINIBAND_ADDR_TRANS - bool + bool "RDMA/CM" depends on INFINIBAND default y + ---help--- + Support for RDMA communication manager (CM). + This allows for a generic connection abstraction over RDMA.
config INFINIBAND_ADDR_TRANS_CONFIGFS bool
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Maxime Chevallier maxime.chevallier@bootlin.com
[ Upstream commit 45f972adb7f4db2d7f02af728ccd104113336074 ]
When clk_prepare_enable fails for the axi_clk, the mg_clk isn't properly cleaned up. Add another jump label to handle that case, and make sure we jump to it in the later error cases.
Fixes: 4792ea04bcd0 ("net: mvpp2: Fix clock resource by adding an optional bus clock") Signed-off-by: Maxime Chevallier maxime.chevallier@bootlin.com Acked-by: Gregory CLEMENT gregory.clement@bootlin.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/net/ethernet/marvell/mvpp2.c | 15 ++++++++------- 1 file changed, 8 insertions(+), 7 deletions(-)
--- a/drivers/net/ethernet/marvell/mvpp2.c +++ b/drivers/net/ethernet/marvell/mvpp2.c @@ -8332,12 +8332,12 @@ static int mvpp2_probe(struct platform_d if (IS_ERR(priv->axi_clk)) { err = PTR_ERR(priv->axi_clk); if (err == -EPROBE_DEFER) - goto err_gop_clk; + goto err_mg_clk; priv->axi_clk = NULL; } else { err = clk_prepare_enable(priv->axi_clk); if (err < 0) - goto err_gop_clk; + goto err_mg_clk; }
/* Get system's tclk rate */ @@ -8351,7 +8351,7 @@ static int mvpp2_probe(struct platform_d if (priv->hw_version == MVPP22) { err = dma_set_mask(&pdev->dev, MVPP2_DESC_DMA_MASK); if (err) - goto err_mg_clk; + goto err_axi_clk; /* Sadly, the BM pools all share the same register to * store the high 32 bits of their address. So they * must all have the same high 32 bits, which forces @@ -8359,14 +8359,14 @@ static int mvpp2_probe(struct platform_d */ err = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32)); if (err) - goto err_mg_clk; + goto err_axi_clk; }
/* Initialize network controller */ err = mvpp2_init(pdev, priv); if (err < 0) { dev_err(&pdev->dev, "failed to initialize controller\n"); - goto err_mg_clk; + goto err_axi_clk; }
/* Initialize ports */ @@ -8379,7 +8379,7 @@ static int mvpp2_probe(struct platform_d if (priv->port_count == 0) { dev_err(&pdev->dev, "no ports enabled\n"); err = -ENODEV; - goto err_mg_clk; + goto err_axi_clk; }
/* Statistics must be gathered regularly because some of them (like @@ -8407,8 +8407,9 @@ err_port_probe: mvpp2_port_remove(priv->port_list[i]); i++; } -err_mg_clk: +err_axi_clk: clk_disable_unprepare(priv->axi_clk); +err_mg_clk: if (priv->hw_version == MVPP22) clk_disable_unprepare(priv->mg_clk); err_gop_clk:
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Matan Barak matanb@mellanox.com
[ Upstream commit f604db645a66b7ba4f21c426fe73253928dada41 ]
Previously, if a method contained mandatory attributes in a namespace that wasn't given by the user, these attributes weren't validated. Fixing this by iterating over all specification namespaces.
Fixes: fac9658cabb9 ("IB/core: Add new ioctl interface") Signed-off-by: Matan Barak matanb@mellanox.com Signed-off-by: Doug Ledford dledford@redhat.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/infiniband/core/uverbs_ioctl.c | 9 +++++++++ 1 file changed, 9 insertions(+)
--- a/drivers/infiniband/core/uverbs_ioctl.c +++ b/drivers/infiniband/core/uverbs_ioctl.c @@ -191,6 +191,15 @@ static int uverbs_validate_kernel_mandat return -EINVAL; }
+ for (; i < method_spec->num_buckets; i++) { + struct uverbs_attr_spec_hash *attr_spec_bucket = + method_spec->attr_buckets[i]; + + if (!bitmap_empty(attr_spec_bucket->mandatory_attrs_bitmask, + attr_spec_bucket->num_attrs)) + return -EINVAL; + } + return 0; }
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Parav Pandit parav@mellanox.com
[ Upstream commit 2918c1a900252b4a0c730715ec205437c7daf79d ]
There are few issues with validation of netdevice and listen id lookup for IB (IPoIB) while processing incoming CM request as below.
1. While performing lookup of bind_list in cma_ps_find(), net namespace of the netdevice can get deleted in cma_exit_net(), resulting in use after free access of idr and/or net namespace structures. This lookup occurs from the workqueue context (and not userspace context where net namespace is always valid).
CPU0 CPU1 ==== ====
bind_list = cma_ps_find(); move netdevice to new namespace delete net namespace cma_exit_net() idr_destroy(idr);
[..] cma_find_listener(bind_list, ..);
2. While netdevice is validated for IP address in given net namespace, netdevice's net namespace and/or ifindex can change in cma_get_net_dev() and cma_match_net_dev().
Above issues are overcome by using rcu lock along with netdevice UP/DOWN state as described below. When a net namespace is getting deleted, netdevice is closed and shutdown before moving it back to init_net namespace. change_net_namespace() synchronizes with any existing use of netdevice before changing the netdev properties such as net or ifindex. Once netdevice IFF_UP flags is cleared, such fields are not guaranteed to be valid. Therefore, rcu lock along with netdevice state check ensures that, while route lookup and cm_id lookup is in progress, netdevice of interest won't migrate to any other net namespace. This ensures that associated net namespace of netdevice won't get deleted while rcu lock is held for netdevice which is in IFF_UP state.
Fixes: fa20105e09e9 ("IB/cma: Add support for network namespaces") Fixes: 4be74b42a6d0 ("IB/cma: Separate port allocation to network namespaces") Fixes: f887f2ac87c2 ("IB/cma: Validate routing of incoming requests") Signed-off-by: Parav Pandit parav@mellanox.com Signed-off-by: Leon Romanovsky leonro@mellanox.com Signed-off-by: Doug Ledford dledford@redhat.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/infiniband/core/cma.c | 53 ++++++++++++++++++++++++++++++++++-------- 1 file changed, 43 insertions(+), 10 deletions(-)
--- a/drivers/infiniband/core/cma.c +++ b/drivers/infiniband/core/cma.c @@ -420,6 +420,8 @@ struct cma_hdr { #define CMA_VERSION 0x00
struct cma_req_info { + struct sockaddr_storage listen_addr_storage; + struct sockaddr_storage src_addr_storage; struct ib_device *device; int port; union ib_gid local_gid; @@ -1373,11 +1375,11 @@ static bool validate_net_dev(struct net_ }
static struct net_device *cma_get_net_dev(struct ib_cm_event *ib_event, - const struct cma_req_info *req) + struct cma_req_info *req) { - struct sockaddr_storage listen_addr_storage, src_addr_storage; - struct sockaddr *listen_addr = (struct sockaddr *)&listen_addr_storage, - *src_addr = (struct sockaddr *)&src_addr_storage; + struct sockaddr *listen_addr = + (struct sockaddr *)&req->listen_addr_storage; + struct sockaddr *src_addr = (struct sockaddr *)&req->src_addr_storage; struct net_device *net_dev; const union ib_gid *gid = req->has_gid ? &req->local_gid : NULL; int err; @@ -1392,11 +1394,6 @@ static struct net_device *cma_get_net_de if (!net_dev) return ERR_PTR(-ENODEV);
- if (!validate_net_dev(net_dev, listen_addr, src_addr)) { - dev_put(net_dev); - return ERR_PTR(-EHOSTUNREACH); - } - return net_dev; }
@@ -1532,15 +1529,51 @@ static struct rdma_id_private *cma_id_fr } }
+ /* + * Net namespace might be getting deleted while route lookup, + * cm_id lookup is in progress. Therefore, perform netdevice + * validation, cm_id lookup under rcu lock. + * RCU lock along with netdevice state check, synchronizes with + * netdevice migrating to different net namespace and also avoids + * case where net namespace doesn't get deleted while lookup is in + * progress. + * If the device state is not IFF_UP, its properties such as ifindex + * and nd_net cannot be trusted to remain valid without rcu lock. + * net/core/dev.c change_net_namespace() ensures to synchronize with + * ongoing operations on net device after device is closed using + * synchronize_net(). + */ + rcu_read_lock(); + if (*net_dev) { + /* + * If netdevice is down, it is likely that it is administratively + * down or it might be migrating to different namespace. + * In that case avoid further processing, as the net namespace + * or ifindex may change. + */ + if (((*net_dev)->flags & IFF_UP) == 0) { + id_priv = ERR_PTR(-EHOSTUNREACH); + goto err; + } + + if (!validate_net_dev(*net_dev, + (struct sockaddr *)&req.listen_addr_storage, + (struct sockaddr *)&req.src_addr_storage)) { + id_priv = ERR_PTR(-EHOSTUNREACH); + goto err; + } + } + bind_list = cma_ps_find(*net_dev ? dev_net(*net_dev) : &init_net, rdma_ps_from_service_id(req.service_id), cma_port_from_service_id(req.service_id)); id_priv = cma_find_listener(bind_list, cm_id, ib_event, &req, *net_dev); +err: + rcu_read_unlock(); if (IS_ERR(id_priv) && *net_dev) { dev_put(*net_dev); *net_dev = NULL; } - return id_priv; }
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Colin Ian King colin.king@canonical.com
[ Upstream commit f96416cea7bce9afe619c15e87fced70f93f9098 ]
In the cases where iwpm_hash_bucket is NULL and where function get_mapinfo_hash_bucket returns NULL then the map_info is never added to hash_bucket_head and hence there is a leak of map_info. Fix this by nullifying hash_bucket_head and if that is null we know that that map_info was not added to hash_bucket_head and hence map_info should be free'd.
Detected by CoverityScan, CID#1222481 ("Resource Leak")
Fixes: 30dc5e63d6a5 ("RDMA/core: Add support for iWARP Port Mapper user space service") Signed-off-by: Colin Ian King colin.king@canonical.com Signed-off-by: Doug Ledford dledford@redhat.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/infiniband/core/iwpm_util.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-)
--- a/drivers/infiniband/core/iwpm_util.c +++ b/drivers/infiniband/core/iwpm_util.c @@ -114,7 +114,7 @@ int iwpm_create_mapinfo(struct sockaddr_ struct sockaddr_storage *mapped_sockaddr, u8 nl_client) { - struct hlist_head *hash_bucket_head; + struct hlist_head *hash_bucket_head = NULL; struct iwpm_mapping_info *map_info; unsigned long flags; int ret = -EINVAL; @@ -142,6 +142,9 @@ int iwpm_create_mapinfo(struct sockaddr_ } } spin_unlock_irqrestore(&iwpm_mapinfo_lock, flags); + + if (!hash_bucket_head) + kfree(map_info); return ret; }
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Jianchao Wang jianchao.w.wang@oracle.com
[ Upstream commit 2da36d44a9d54a2c6e1f8da1f7ccc26b0bc6cfec ]
w/o RXE_START_MASK, the last_psn of IB_OPCODE_RC_SEND_ONLY_INV will not be updated in update_wqe_psn, and the corresponding wqe will not be acked in rxe_completer due to its last_psn is zero. Finally, the other wqe will also not be able to be acked, because the wqe of IB_OPCODE_RC_SEND_ONLY_INV with last_psn 0 is still there. This causes large amount of io timeout when nvmeof is over rxe.
Add RXE_START_MASK for IB_OPCODE_RC_SEND_ONLY_INV to fix this.
Signed-off-by: Jianchao Wang jianchao.w.wang@oracle.com Reviewed-by: Zhu Yanjun yanjun.zhu@oracle.com Signed-off-by: Doug Ledford dledford@redhat.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/infiniband/sw/rxe/rxe_opcode.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/infiniband/sw/rxe/rxe_opcode.c +++ b/drivers/infiniband/sw/rxe/rxe_opcode.c @@ -390,7 +390,7 @@ struct rxe_opcode_info rxe_opcode[RXE_NU .name = "IB_OPCODE_RC_SEND_ONLY_INV", .mask = RXE_IETH_MASK | RXE_PAYLOAD_MASK | RXE_REQ_MASK | RXE_COMP_MASK | RXE_RWR_MASK | RXE_SEND_MASK - | RXE_END_MASK, + | RXE_END_MASK | RXE_START_MASK, .length = RXE_BTH_BYTES + RXE_IETH_BYTES, .offset = { [RXE_BTH] = 0,
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Zhu Yanjun yanjun.zhu@oracle.com
[ Upstream commit 9fd4350ba8953804f05215999e11a6cfb7b41f2b ]
When skb is sent, it will pass the following functions in soft roce.
rxe_send [rdma_rxe] ip_local_out __ip_local_out ip_output ip_finish_output ip_finish_output2 dev_queue_xmit __dev_queue_xmit dev_hard_start_xmit
In the above functions, if error occurs in the above functions or iptables rules drop skb after ip_local_out, kfree_skb will be called. So it is not necessary to call kfree_skb in soft roce module again. Or else crash will occur.
The steps to reproduce:
server client --------- --------- |1.1.1.1|<----rxe-channel--->|1.1.1.2| --------- ---------
On server: rping -s -a 1.1.1.1 -v -C 10000 -S 512 On client: rping -c -a 1.1.1.1 -v -C 10000 -S 512
The kernel configs CONFIG_DEBUG_KMEMLEAK and CONFIG_DEBUG_OBJECTS are enabled on both server and client.
When rping runs, run the following command in server:
iptables -I OUTPUT -p udp --dport 4791 -j DROP
Without this patch, crash will occur.
CC: Srinivas Eeda srinivas.eeda@oracle.com CC: Junxiao Bi junxiao.bi@oracle.com Signed-off-by: Zhu Yanjun yanjun.zhu@oracle.com Reviewed-by: Yuval Shaia yuval.shaia@oracle.com Signed-off-by: Doug Ledford dledford@redhat.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/infiniband/sw/rxe/rxe_req.c | 1 - drivers/infiniband/sw/rxe/rxe_resp.c | 6 +----- 2 files changed, 1 insertion(+), 6 deletions(-)
--- a/drivers/infiniband/sw/rxe/rxe_req.c +++ b/drivers/infiniband/sw/rxe/rxe_req.c @@ -728,7 +728,6 @@ next_wqe: rollback_state(wqe, qp, &rollback_wqe, rollback_psn);
if (ret == -EAGAIN) { - kfree_skb(skb); rxe_run_task(&qp->req.task, 1); goto exit; } --- a/drivers/infiniband/sw/rxe/rxe_resp.c +++ b/drivers/infiniband/sw/rxe/rxe_resp.c @@ -742,7 +742,6 @@ static enum resp_states read_reply(struc err = rxe_xmit_packet(rxe, qp, &ack_pkt, skb); if (err) { pr_err("Failed sending RDMA reply.\n"); - kfree_skb(skb); return RESPST_ERR_RNR; }
@@ -954,10 +953,8 @@ static int send_ack(struct rxe_qp *qp, s }
err = rxe_xmit_packet(rxe, qp, &ack_pkt, skb); - if (err) { + if (err) pr_err_ratelimited("Failed sending ack\n"); - kfree_skb(skb); - }
err1: return err; @@ -1150,7 +1147,6 @@ static enum resp_states duplicate_reques if (rc) { pr_err("Failed resending result. This flow is not handled - skb ignored\n"); rxe_drop_ref(qp); - kfree_skb(skb_copy); rc = RESPST_CLEANUP; goto out; }
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: oulijun oulijun@huawei.com
[ Upstream commit 215a8c09e5e2aa6ae1fbcef87f8f27d65d5d1ca4 ]
During init hem table, type should be used instead of table->type which is finally initializaed with type.
Signed-off-by: Lijun Ou oulijun@huawei.com Signed-off-by: Yixian Liu liuyixian@huawei.com Signed-off-by: Doug Ledford dledford@redhat.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/infiniband/hw/hns/hns_roce_hem.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-)
--- a/drivers/infiniband/hw/hns/hns_roce_hem.c +++ b/drivers/infiniband/hw/hns/hns_roce_hem.c @@ -912,7 +912,7 @@ int hns_roce_init_hem_table(struct hns_r obj_per_chunk = buf_chunk_size / obj_size; num_hem = (nobj + obj_per_chunk - 1) / obj_per_chunk; bt_chunk_num = bt_chunk_size / 8; - if (table->type >= HEM_TYPE_MTT) + if (type >= HEM_TYPE_MTT) num_bt_l0 = bt_chunk_num;
table->hem = kcalloc(num_hem, sizeof(*table->hem), @@ -920,7 +920,7 @@ int hns_roce_init_hem_table(struct hns_r if (!table->hem) goto err_kcalloc_hem_buf;
- if (check_whether_bt_num_3(table->type, hop_num)) { + if (check_whether_bt_num_3(type, hop_num)) { unsigned long num_bt_l1;
num_bt_l1 = (num_hem + bt_chunk_num - 1) / @@ -939,8 +939,8 @@ int hns_roce_init_hem_table(struct hns_r goto err_kcalloc_l1_dma; }
- if (check_whether_bt_num_2(table->type, hop_num) || - check_whether_bt_num_3(table->type, hop_num)) { + if (check_whether_bt_num_2(type, hop_num) || + check_whether_bt_num_3(type, hop_num)) { table->bt_l0 = kcalloc(num_bt_l0, sizeof(*table->bt_l0), GFP_KERNEL); if (!table->bt_l0)
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: oulijun oulijun@huawei.com
[ Upstream commit 328d405b3d4c8dd1f06bfd77f498e23281ae348c ]
RDMA read operation is not supported inline data. If user cofigures issue a RDMA read and use inline data, it will happen a hardware error.
Signed-off-by: Lijun Ou oulijun@huawei.com Signed-off-by: Doug Ledford dledford@redhat.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/infiniband/hw/hns/hns_roce_hw_v2.c | 5 +++++ 1 file changed, 5 insertions(+)
--- a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c +++ b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c @@ -71,6 +71,11 @@ static int set_rwqe_data_seg(struct ib_q return -EINVAL; }
+ if (wr->opcode == IB_WR_RDMA_READ) { + dev_err(hr_dev->dev, "Not support inline data!\n"); + return -EINVAL; + } + for (i = 0; i < wr->num_sge; i++) { memcpy(wqe, ((void *)wr->sg_list[i].addr), wr->sg_list[i].length);
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: oulijun oulijun@huawei.com
[ Upstream commit 6e1a70943cecdca9bb13b601b1a9772a7bdcc2c3 ]
According to RoCE protocol, it is possible to transition from error to error state for modifying qp in hip08. This patch fix it.
Signed-off-by: Lijun Ou oulijun@huawei.com Signed-off-by: Doug Ledford dledford@redhat.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/infiniband/hw/hns/hns_roce_hw_v2.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
--- a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c +++ b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c @@ -3166,7 +3166,8 @@ static int hns_roce_v2_modify_qp(struct (cur_state == IB_QPS_RTR && new_state == IB_QPS_ERR) || (cur_state == IB_QPS_RTS && new_state == IB_QPS_ERR) || (cur_state == IB_QPS_SQD && new_state == IB_QPS_ERR) || - (cur_state == IB_QPS_SQE && new_state == IB_QPS_ERR)) { + (cur_state == IB_QPS_SQE && new_state == IB_QPS_ERR) || + (cur_state == IB_QPS_ERR && new_state == IB_QPS_ERR)) { /* Nothing */ ; } else {
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: oulijun oulijun@huawei.com
[ Upstream commit 137ae3208416278aabef3b71e0ea1052940ca362 ]
When generated bad work reqeust, it needs to report to user. This patch mainly fixes it.
Signed-off-by: Lijun Ou oulijun@huawei.com Signed-off-by: Doug Ledford dledford@redhat.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/infiniband/hw/hns/hns_roce_hw_v2.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
--- a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c +++ b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c @@ -153,7 +153,7 @@ static int hns_roce_v2_post_send(struct ibqp->qp_type != IB_QPT_GSI && ibqp->qp_type != IB_QPT_UD)) { dev_err(dev, "Not supported QP(0x%x)type!\n", ibqp->qp_type); - *bad_wr = NULL; + *bad_wr = wr; return -EOPNOTSUPP; }
@@ -461,6 +461,7 @@ static int hns_roce_v2_post_send(struct } else { dev_err(dev, "Illegal qp_type(0x%x)\n", ibqp->qp_type); spin_unlock_irqrestore(&qp->sq.lock, flags); + *bad_wr = wr; return -EOPNOTSUPP; } }
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Amir Goldstein amir73il@gmail.com
[ Upstream commit 19b9ad67310ed2f685062a00aec602bec33835f0 ]
The comment claims that this helper will try not to loose bits, but for 64bit long it looses the high bits before hashing 64bit long into 32bit int. Use the helper hash_long() to do the right thing for 64bit long. For 32bit long, there is no change.
All the callers of end_name_hash() either assign the result to qstr->hash, which is u32 or return the result as an int value (e.g. full_name_hash()). Change the helper return type to int to conform to its users.
[ It took me a while to apply this, because my initial reaction to it was - incorrectly - that it could make for slower code.
After having looked more at it, I take back all my complaints about the patch, Amir was right and I was mis-reading things or just being stupid.
I also don't worry too much about the possible performance impact of this on 64-bit, since most architectures that actually care about performance end up not using this very much (the dcache code is the most performance-critical, but the word-at-a-time case uses its own hashing anyway).
So this ends up being mostly used for filesystems that do their own degraded hashing (usually because they want a case-insensitive comparison function).
A _tiny_ worry remains, in that not everybody uses DCACHE_WORD_ACCESS, and then this potentially makes things more expensive on 64-bit architectures with slow or lacking multipliers even for the normal case.
That said, realistically the only such architecture I can think of is PA-RISC. Nobody really cares about performance on that, it's more of a "look ma, I've got warts^W an odd machine" platform.
So the patch is fine, and all my initial worries were just misplaced from not looking at this properly. - Linus ]
Signed-off-by: Amir Goldstein amir73il@gmail.com Signed-off-by: Linus Torvalds torvalds@linux-foundation.org Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- include/linux/stringhash.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
--- a/include/linux/stringhash.h +++ b/include/linux/stringhash.h @@ -50,9 +50,9 @@ partial_name_hash(unsigned long c, unsig * losing bits). This also has the property (wanted by the dcache) * that the msbits make a good hash table index. */ -static inline unsigned long end_name_hash(unsigned long hash) +static inline unsigned int end_name_hash(unsigned long hash) { - return __hash_32((unsigned int)hash); + return hash_long(hash, 32); }
/*
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Sekhar Nori nsekhar@ti.com
[ Upstream commit 51e9f12163223546bd3aa9f7af6817931f980da8 ]
The GPIO chip is called davinci_gpio.0 in legacy mode. Fix it, so that mmc can correctly lookup the wp and cp gpios. Also fix the GPIO numbers as they are not offsets within a bank.
Note that it is the gpio-davinci driver that sets the gpiochip label to davinci_gpio.0.
Fixes: b5e1438cf98a ("ARM: davinci: da830-evm: use gpio descriptor for mmc pins") Reported-by: David Lechner david@lechnology.com Reviewed-by: David Lechner david@lechnology.com Signed-off-by: Sekhar Nori nsekhar@ti.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/arm/mach-davinci/board-da830-evm.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-)
--- a/arch/arm/mach-davinci/board-da830-evm.c +++ b/arch/arm/mach-davinci/board-da830-evm.c @@ -205,12 +205,17 @@ static const short da830_evm_mmc_sd_pins -1 };
+#define DA830_MMCSD_WP_PIN GPIO_TO_PIN(2, 1) +#define DA830_MMCSD_CD_PIN GPIO_TO_PIN(2, 2) + static struct gpiod_lookup_table mmc_gpios_table = { .dev_id = "da830-mmc.0", .table = { /* gpio chip 1 contains gpio range 32-63 */ - GPIO_LOOKUP("davinci_gpio.1", 2, "cd", GPIO_ACTIVE_LOW), - GPIO_LOOKUP("davinci_gpio.1", 1, "wp", GPIO_ACTIVE_LOW), + GPIO_LOOKUP("davinci_gpio.0", DA830_MMCSD_CD_PIN, "cd", + GPIO_ACTIVE_LOW), + GPIO_LOOKUP("davinci_gpio.0", DA830_MMCSD_WP_PIN, "wp", + GPIO_ACTIVE_LOW), }, };
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Sekhar Nori nsekhar@ti.com
[ Upstream commit 67c6b6ff221f807180aea6dd597246f87e1dd98a ]
The GPIO chip is called davinci_gpio.0 in legacy mode. Fix it, so that mmc can correctly lookup the wp and cp gpios. Also fix the GPIO numbers as they are not offsets within a bank.
Note that it is the gpio-davinci driver that sets the gpiochip label to davinci_gpio.0.
Fixes: bdf0e8364fd3 ("ARM: davinci: da850-evm: use gpio descriptor for mmc pins") Reviewed-by: David Lechner david@lechnology.com Signed-off-by: Sekhar Nori nsekhar@ti.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/arm/mach-davinci/board-da850-evm.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-)
--- a/arch/arm/mach-davinci/board-da850-evm.c +++ b/arch/arm/mach-davinci/board-da850-evm.c @@ -763,12 +763,17 @@ static const short da850_evm_mcasp_pins[ -1 };
+#define DA850_MMCSD_CD_PIN GPIO_TO_PIN(4, 0) +#define DA850_MMCSD_WP_PIN GPIO_TO_PIN(4, 1) + static struct gpiod_lookup_table mmc_gpios_table = { .dev_id = "da830-mmc.0", .table = { /* gpio chip 2 contains gpio range 64-95 */ - GPIO_LOOKUP("davinci_gpio.2", 0, "cd", GPIO_ACTIVE_LOW), - GPIO_LOOKUP("davinci_gpio.2", 1, "wp", GPIO_ACTIVE_LOW), + GPIO_LOOKUP("davinci_gpio.0", DA850_MMCSD_CD_PIN, "cd", + GPIO_ACTIVE_LOW), + GPIO_LOOKUP("davinci_gpio.0", DA850_MMCSD_WP_PIN, "wp", + GPIO_ACTIVE_LOW), }, };
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Sekhar Nori nsekhar@ti.com
[ Upstream commit d45622c0eaa5992a1a2248cbe93e1ff7a2da7be4 ]
commit c4dc56be7e26 ("ARM: davinci: fix the GPIO lookup for omapl138-hawk") fixed the GPIO chip name for look-up of MMC/SD CD and WP pins, but forgot to change the GPIO numbers passed.
The GPIO numbers are not offsets from within a 32 GPIO bank. Fix the GPIO numbers as well as remove the misleading comment.
Fixes: c4dc56be7e26 ("ARM: davinci: fix the GPIO lookup for omapl138-hawk") Reviewed-by: David Lechner david@lechnology.com Signed-off-by: Sekhar Nori nsekhar@ti.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/arm/mach-davinci/board-omapl138-hawk.c | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-)
--- a/arch/arm/mach-davinci/board-omapl138-hawk.c +++ b/arch/arm/mach-davinci/board-omapl138-hawk.c @@ -123,12 +123,16 @@ static const short hawk_mmcsd0_pins[] = -1 };
+#define DA850_HAWK_MMCSD_CD_PIN GPIO_TO_PIN(3, 12) +#define DA850_HAWK_MMCSD_WP_PIN GPIO_TO_PIN(3, 13) + static struct gpiod_lookup_table mmc_gpios_table = { .dev_id = "da830-mmc.0", .table = { - /* CD: gpio3_12: gpio60: chip 1 contains gpio range 32-63*/ - GPIO_LOOKUP("davinci_gpio.0", 28, "cd", GPIO_ACTIVE_LOW), - GPIO_LOOKUP("davinci_gpio.0", 29, "wp", GPIO_ACTIVE_LOW), + GPIO_LOOKUP("davinci_gpio.0", DA850_HAWK_MMCSD_CD_PIN, "cd", + GPIO_ACTIVE_LOW), + GPIO_LOOKUP("davinci_gpio.0", DA850_HAWK_MMCSD_WP_PIN, "wp", + GPIO_ACTIVE_LOW), }, };
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Sekhar Nori nsekhar@ti.com
[ Upstream commit 5c054de228dd6d97bf8e38962bd118953b66e5a0 ]
Since commit 09f3756bb9a8 ("dm9000: Return an ERR_PTR() in all error conditions of dm9000_parse_dt()"), passing either non-NULL platform data or device-tree for dm9000 driver to probe is mandatory.
DM335 board was using none, so networking failed to initialize. Fix it by passing non-NULL (but empty) platform data.
Fixes: 09f3756bb9a8 ("dm9000: Return an ERR_PTR() in all error conditions of dm9000_parse_dt()") Signed-off-by: Sekhar Nori nsekhar@ti.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/arm/mach-davinci/board-dm355-evm.c | 6 ++++++ 1 file changed, 6 insertions(+)
--- a/arch/arm/mach-davinci/board-dm355-evm.c +++ b/arch/arm/mach-davinci/board-dm355-evm.c @@ -19,6 +19,7 @@ #include <linux/gpio.h> #include <linux/gpio/machine.h> #include <linux/clk.h> +#include <linux/dm9000.h> #include <linux/videodev2.h> #include <media/i2c/tvp514x.h> #include <linux/spi/spi.h> @@ -179,11 +180,16 @@ static struct resource dm355evm_dm9000_r }, };
+static struct dm9000_plat_data dm335evm_dm9000_platdata; + static struct platform_device dm355evm_dm9000 = { .name = "dm9000", .id = -1, .resource = dm355evm_dm9000_rsrc, .num_resources = ARRAY_SIZE(dm355evm_dm9000_rsrc), + .dev = { + .platform_data = &dm335evm_dm9000_platdata, + }, };
static struct tvp514x_platform_data tvp5146_pdata = {
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Geert Uytterhoeven geert+renesas@glider.be
[ Upstream commit f130307054a59ca21d2396f386be77ebd2e8ca96 ]
Fixes: 14da3ed8dd08c581 ("devicetree/bindings: display: Document common panel properties") Signed-off-by: Geert Uytterhoeven geert+renesas@glider.be Reviewed-by: Laurent Pinchart laurent.pinchart@ideasonboard.com Signed-off-by: Rob Herring robh@kernel.org Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- Documentation/devicetree/bindings/display/panel/panel-common.txt | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/Documentation/devicetree/bindings/display/panel/panel-common.txt +++ b/Documentation/devicetree/bindings/display/panel/panel-common.txt @@ -38,7 +38,7 @@ Display Timings require specific display timings. The panel-timing subnode expresses those timings as specified in the timing subnode section of the display timing bindings defined in - Documentation/devicetree/bindings/display/display-timing.txt. + Documentation/devicetree/bindings/display/panel/display-timing.txt.
Connectivity
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Tero Kristo t-kristo@ti.com
[ Upstream commit 33e9572483031a79ad0a4468064675144d9269ec ]
smp_processor_id() checks preemption if CONFIG_DEBUG_PREEMPT is enabled, causing a warning dump during boot:
[ 5.042377] BUG: using smp_processor_id() in preemptible [00000000] code: swapper/0/1 [ 5.050281] caller is pwrdm_set_next_pwrst+0x48/0x88 [ 5.055330] CPU: 1 PID: 1 Comm: swapper/0 Not tainted 4.14.24-g57341df0b4 #1
Use the raw_smp_processor_id() for the trace instead, this value does not need to be perfectly correct. The alternative of disabling preempt is too heavy weight operation to be applied in PM hot path for just tracing purposes.
Signed-off-by: Tero Kristo t-kristo@ti.com Signed-off-by: Tony Lindgren tony@atomide.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/arm/mach-omap2/powerdomain.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
--- a/arch/arm/mach-omap2/powerdomain.c +++ b/arch/arm/mach-omap2/powerdomain.c @@ -188,7 +188,7 @@ static int _pwrdm_state_switch(struct po ((prev & OMAP_POWERSTATE_MASK) << 0)); trace_power_domain_target_rcuidle(pwrdm->name, trace_state, - smp_processor_id()); + raw_smp_processor_id()); } break; default: @@ -518,7 +518,7 @@ int pwrdm_set_next_pwrst(struct powerdom if (arch_pwrdm && arch_pwrdm->pwrdm_set_next_pwrst) { /* Trace the pwrdm desired target state */ trace_power_domain_target_rcuidle(pwrdm->name, pwrst, - smp_processor_id()); + raw_smp_processor_id()); /* Program the pwrdm desired target state */ ret = arch_pwrdm->pwrdm_set_next_pwrst(pwrdm, pwrst); }
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Adam Ford aford173@gmail.com
[ Upstream commit 189822cbcbf3ea37c26a15612d8f922c440bc0e0 ]
The VAUX3 rail from the PMIC powers a clock driver which clocks the WL127x. This corrects a bug which did not correctly associate the vin-supply with the proper power rail.
This also fixes a typo in the pinmuxing to properly configure the interrupt pin.
Fixes: ab8dd3aed011 ("ARM: DTS: Add minimal Support for Logic PD DM3730 SOM-LV")
Signed-off-by: Adam Ford aford173@gmail.com Signed-off-by: Tony Lindgren tony@atomide.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/arm/boot/dts/logicpd-som-lv.dtsi | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-)
--- a/arch/arm/boot/dts/logicpd-som-lv.dtsi +++ b/arch/arm/boot/dts/logicpd-som-lv.dtsi @@ -26,7 +26,7 @@ gpio = <&gpio1 3 0>; /* gpio_3 */ startup-delay-us = <70000>; enable-active-high; - vin-supply = <&vmmc2>; + vin-supply = <&vaux3>; };
/* HS USB Host PHY on PORT 1 */ @@ -209,7 +209,7 @@ }; wl127x_gpio: pinmux_wl127x_gpio_pin { pinctrl-single,pins = < - OMAP3_WKUP_IOPAD(0x2a0c, PIN_INPUT | MUX_MODE4) /* sys_boot0.gpio_2 */ + OMAP3_WKUP_IOPAD(0x2a0a, PIN_INPUT | MUX_MODE4) /* sys_boot0.gpio_2 */ OMAP3_WKUP_IOPAD(0x2a0c, PIN_OUTPUT | MUX_MODE4) /* sys_boot1.gpio_3 */ >; }; @@ -244,6 +244,11 @@ #include "twl4030.dtsi" #include "twl4030_omap3.dtsi"
+&vaux3 { + regulator-min-microvolt = <2800000>; + regulator-max-microvolt = <2800000>; +}; + &twl { twl_power: power { compatible = "ti,twl4030-power-idle-osc-off", "ti,twl4030-power-idle";
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Adam Ford aford173@gmail.com
[ Upstream commit 95e59fc3c3fa3187a07a75f40b21637deb4bd12d ]
The Audio has worked, but the mute pin has a weak pulldown which alows some of the audio signal to pass very quietly. This patch fixes that so the mute pin is actively driven high for mute or low for normal operation.
Fixes: ab8dd3aed011 ("ARM: DTS: Add minimal Support for Logic PD DM3730 SOM-LV")
Signed-off-by: Adam Ford aford173@gmail.com Signed-off-by: Tony Lindgren tony@atomide.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/arm/boot/dts/logicpd-som-lv.dtsi | 2 ++ 1 file changed, 2 insertions(+)
--- a/arch/arm/boot/dts/logicpd-som-lv.dtsi +++ b/arch/arm/boot/dts/logicpd-som-lv.dtsi @@ -82,6 +82,7 @@ twl_audio: audio { compatible = "ti,twl4030-audio"; codec { + ti,hs_extmute_gpio = <&gpio2 25 GPIO_ACTIVE_HIGH>; }; }; }; @@ -195,6 +196,7 @@ pinctrl-single,pins = < OMAP3_CORE1_IOPAD(0x21ba, PIN_INPUT | MUX_MODE0) /* i2c1_scl.i2c1_scl */ OMAP3_CORE1_IOPAD(0x21bc, PIN_INPUT | MUX_MODE0) /* i2c1_sda.i2c1_sda */ + OMAP3_CORE1_IOPAD(0x20ba, PIN_OUTPUT | MUX_MODE4) /* gpmc_ncs6.gpio_57 */ >; }; };
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Chuck Lever chuck.lever@oracle.com
[ Upstream commit 054f155721d7af1f343ed52bea246626d8450ca8 ]
The ro_release_mr methods check whether mr->mr_list is empty. Therefore, be sure to always use list_del_init when removing an MR linked into a list using that field. Otherwise, when recovering from transport failures or device removal, list corruption can result, or MRs can get mapped or unmapped an odd number of times, resulting in IOMMU-related failures.
In general this fix is appropriate back to v4.8. However, code changes since then make it impossible to apply this patch directly to stable kernels. The fix would have to be applied by hand or reworked for kernels earlier than v4.16.
Backport guidance -- there are several cases: - When creating an MR, initialize mr_list so that using list_empty on an as-yet-unused MR is safe. - When an MR is being handled by the remote invalidation path, ensure that mr_list is reinitialized when it is removed from rl_registered. - When an MR is being handled by rpcrdma_destroy_mrs, it is removed from mr_all, but it may still be on an rl_registered list. In that case, the MR needs to be removed from that list before being released. - Other cases are covered by using list_del_init in rpcrdma_mr_pop.
Fixes: 9d6b04097882 ('xprtrdma: Place registered MWs on a ... ') Signed-off-by: Chuck Lever chuck.lever@oracle.com Signed-off-by: Anna Schumaker Anna.Schumaker@Netapp.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- net/sunrpc/xprtrdma/fmr_ops.c | 5 +---- net/sunrpc/xprtrdma/frwr_ops.c | 9 +++------ net/sunrpc/xprtrdma/verbs.c | 5 +++++ net/sunrpc/xprtrdma/xprt_rdma.h | 2 +- 4 files changed, 10 insertions(+), 11 deletions(-)
--- a/net/sunrpc/xprtrdma/fmr_ops.c +++ b/net/sunrpc/xprtrdma/fmr_ops.c @@ -72,6 +72,7 @@ fmr_op_init_mr(struct rpcrdma_ia *ia, st if (IS_ERR(mr->fmr.fm_mr)) goto out_fmr_err;
+ INIT_LIST_HEAD(&mr->mr_list); return 0;
out_fmr_err: @@ -102,10 +103,6 @@ fmr_op_release_mr(struct rpcrdma_mr *mr) LIST_HEAD(unmap_list); int rc;
- /* Ensure MW is not on any rl_registered list */ - if (!list_empty(&mr->mr_list)) - list_del(&mr->mr_list); - kfree(mr->fmr.fm_physaddrs); kfree(mr->mr_sg);
--- a/net/sunrpc/xprtrdma/frwr_ops.c +++ b/net/sunrpc/xprtrdma/frwr_ops.c @@ -110,6 +110,7 @@ frwr_op_init_mr(struct rpcrdma_ia *ia, s if (!mr->mr_sg) goto out_list_err;
+ INIT_LIST_HEAD(&mr->mr_list); sg_init_table(mr->mr_sg, depth); init_completion(&frwr->fr_linv_done); return 0; @@ -133,10 +134,6 @@ frwr_op_release_mr(struct rpcrdma_mr *mr { int rc;
- /* Ensure MR is not on any rl_registered list */ - if (!list_empty(&mr->mr_list)) - list_del(&mr->mr_list); - rc = ib_dereg_mr(mr->frwr.fr_mr); if (rc) pr_err("rpcrdma: final ib_dereg_mr for %p returned %i\n", @@ -195,7 +192,7 @@ frwr_op_recover_mr(struct rpcrdma_mr *mr return;
out_release: - pr_err("rpcrdma: FRWR reset failed %d, %p release\n", rc, mr); + pr_err("rpcrdma: FRWR reset failed %d, %p released\n", rc, mr); r_xprt->rx_stats.mrs_orphaned++;
spin_lock(&r_xprt->rx_buf.rb_mrlock); @@ -458,7 +455,7 @@ frwr_op_reminv(struct rpcrdma_rep *rep,
list_for_each_entry(mr, mrs, mr_list) if (mr->mr_handle == rep->rr_inv_rkey) { - list_del(&mr->mr_list); + list_del_init(&mr->mr_list); trace_xprtrdma_remoteinv(mr); mr->frwr.fr_state = FRWR_IS_INVALID; rpcrdma_mr_unmap_and_put(mr); --- a/net/sunrpc/xprtrdma/verbs.c +++ b/net/sunrpc/xprtrdma/verbs.c @@ -1244,6 +1244,11 @@ rpcrdma_mrs_destroy(struct rpcrdma_buffe list_del(&mr->mr_all);
spin_unlock(&buf->rb_mrlock); + + /* Ensure MW is not on any rl_registered list */ + if (!list_empty(&mr->mr_list)) + list_del(&mr->mr_list); + ia->ri_ops->ro_release_mr(mr); count++; spin_lock(&buf->rb_mrlock); --- a/net/sunrpc/xprtrdma/xprt_rdma.h +++ b/net/sunrpc/xprtrdma/xprt_rdma.h @@ -381,7 +381,7 @@ rpcrdma_mr_pop(struct list_head *list) struct rpcrdma_mr *mr;
mr = list_first_entry(list, struct rpcrdma_mr, mr_list); - list_del(&mr->mr_list); + list_del_init(&mr->mr_list); return mr; }
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Nick Dyer nick@shmanahar.org
[ Upstream commit 068bdb67ef74df0ad1627b7247a163e3e252ac11 ]
The automatic update mechanism will trigger an update if the info block CRCs are different between maxtouch configuration file (maxtouch.cfg) and chip.
The driver compared the CRCs without retrieving the chip CRC, resulting always in a failure and firmware flashing action triggered. Fix this issue by retrieving the chip info block CRC before the check.
Note that this solution has the benefit that by reading the information block and the object table into a contiguous region of memory, we can verify the checksum at probe time. This means we make sure that we are indeed talking to a chip that supports object protocol correctly.
Using this patch on a kevin chromebook, the touchscreen and touchpad drivers are able to match the CRC:
atmel_mxt_ts 3-004b: Family: 164 Variant: 14 Firmware V2.3.AA Objects: 40 atmel_mxt_ts 5-004a: Family: 164 Variant: 17 Firmware V2.0.AA Objects: 31 atmel_mxt_ts 3-004b: Resetting device atmel_mxt_ts 5-004a: Resetting device atmel_mxt_ts 3-004b: Config CRC 0x573E89: OK atmel_mxt_ts 3-004b: Touchscreen size X4095Y2729 input: Atmel maXTouch Touchscreen as /devices/platform/ff130000.i2c/i2c-3/3-004b/input/input5 atmel_mxt_ts 5-004a: Config CRC 0x0AF6BA: OK atmel_mxt_ts 5-004a: Touchscreen size X1920Y1080 input: Atmel maXTouch Touchpad as /devices/platform/ff140000.i2c/i2c-5/5-004a/input/input6
Signed-off-by: Nick Dyer nick.dyer@shmanahar.org Acked-by: Benson Leung bleung@chromium.org [Ezequiel: minor patch massage] Signed-off-by: Ezequiel Garcia ezequiel@collabora.com Tested-by: Sebastian Reichel sebastian.reichel@collabora.co.uk Signed-off-by: Dmitry Torokhov dmitry.torokhov@gmail.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/input/touchscreen/atmel_mxt_ts.c | 186 ++++++++++++++++++------------- 1 file changed, 110 insertions(+), 76 deletions(-)
--- a/drivers/input/touchscreen/atmel_mxt_ts.c +++ b/drivers/input/touchscreen/atmel_mxt_ts.c @@ -275,7 +275,8 @@ struct mxt_data { char phys[64]; /* device physical location */ const struct mxt_platform_data *pdata; struct mxt_object *object_table; - struct mxt_info info; + struct mxt_info *info; + void *raw_info_block; unsigned int irq; unsigned int max_x; unsigned int max_y; @@ -450,12 +451,13 @@ static int mxt_lookup_bootloader_address { u8 appmode = data->client->addr; u8 bootloader; + u8 family_id = data->info ? data->info->family_id : 0;
switch (appmode) { case 0x4a: case 0x4b: /* Chips after 1664S use different scheme */ - if (retry || data->info.family_id >= 0xa2) { + if (retry || family_id >= 0xa2) { bootloader = appmode - 0x24; break; } @@ -682,7 +684,7 @@ mxt_get_object(struct mxt_data *data, u8 struct mxt_object *object; int i;
- for (i = 0; i < data->info.object_num; i++) { + for (i = 0; i < data->info->object_num; i++) { object = data->object_table + i; if (object->type == type) return object; @@ -1453,12 +1455,12 @@ static int mxt_update_cfg(struct mxt_dat data_pos += offset; }
- if (cfg_info.family_id != data->info.family_id) { + if (cfg_info.family_id != data->info->family_id) { dev_err(dev, "Family ID mismatch!\n"); return -EINVAL; }
- if (cfg_info.variant_id != data->info.variant_id) { + if (cfg_info.variant_id != data->info->variant_id) { dev_err(dev, "Variant ID mismatch!\n"); return -EINVAL; } @@ -1503,7 +1505,7 @@ static int mxt_update_cfg(struct mxt_dat
/* Malloc memory to store configuration */ cfg_start_ofs = MXT_OBJECT_START + - data->info.object_num * sizeof(struct mxt_object) + + data->info->object_num * sizeof(struct mxt_object) + MXT_INFO_CHECKSUM_SIZE; config_mem_size = data->mem_size - cfg_start_ofs; config_mem = kzalloc(config_mem_size, GFP_KERNEL); @@ -1554,20 +1556,6 @@ release_mem: return ret; }
-static int mxt_get_info(struct mxt_data *data) -{ - struct i2c_client *client = data->client; - struct mxt_info *info = &data->info; - int error; - - /* Read 7-byte info block starting at address 0 */ - error = __mxt_read_reg(client, 0, sizeof(*info), info); - if (error) - return error; - - return 0; -} - static void mxt_free_input_device(struct mxt_data *data) { if (data->input_dev) { @@ -1582,9 +1570,10 @@ static void mxt_free_object_table(struct video_unregister_device(&data->dbg.vdev); v4l2_device_unregister(&data->dbg.v4l2); #endif - - kfree(data->object_table); data->object_table = NULL; + data->info = NULL; + kfree(data->raw_info_block); + data->raw_info_block = NULL; kfree(data->msg_buf); data->msg_buf = NULL; data->T5_address = 0; @@ -1600,34 +1589,18 @@ static void mxt_free_object_table(struct data->max_reportid = 0; }
-static int mxt_get_object_table(struct mxt_data *data) +static int mxt_parse_object_table(struct mxt_data *data, + struct mxt_object *object_table) { struct i2c_client *client = data->client; - size_t table_size; - struct mxt_object *object_table; - int error; int i; u8 reportid; u16 end_address;
- table_size = data->info.object_num * sizeof(struct mxt_object); - object_table = kzalloc(table_size, GFP_KERNEL); - if (!object_table) { - dev_err(&data->client->dev, "Failed to allocate memory\n"); - return -ENOMEM; - } - - error = __mxt_read_reg(client, MXT_OBJECT_START, table_size, - object_table); - if (error) { - kfree(object_table); - return error; - } - /* Valid Report IDs start counting from 1 */ reportid = 1; data->mem_size = 0; - for (i = 0; i < data->info.object_num; i++) { + for (i = 0; i < data->info->object_num; i++) { struct mxt_object *object = object_table + i; u8 min_id, max_id;
@@ -1651,8 +1624,8 @@ static int mxt_get_object_table(struct m
switch (object->type) { case MXT_GEN_MESSAGE_T5: - if (data->info.family_id == 0x80 && - data->info.version < 0x20) { + if (data->info->family_id == 0x80 && + data->info->version < 0x20) { /* * On mXT224 firmware versions prior to V2.0 * read and discard unused CRC byte otherwise @@ -1707,24 +1680,102 @@ static int mxt_get_object_table(struct m /* If T44 exists, T5 position has to be directly after */ if (data->T44_address && (data->T5_address != data->T44_address + 1)) { dev_err(&client->dev, "Invalid T44 position\n"); - error = -EINVAL; - goto free_object_table; + return -EINVAL; }
data->msg_buf = kcalloc(data->max_reportid, data->T5_msg_size, GFP_KERNEL); - if (!data->msg_buf) { - dev_err(&client->dev, "Failed to allocate message buffer\n"); + if (!data->msg_buf) + return -ENOMEM; + + return 0; +} + +static int mxt_read_info_block(struct mxt_data *data) +{ + struct i2c_client *client = data->client; + int error; + size_t size; + void *id_buf, *buf; + uint8_t num_objects; + u32 calculated_crc; + u8 *crc_ptr; + + /* If info block already allocated, free it */ + if (data->raw_info_block) + mxt_free_object_table(data); + + /* Read 7-byte ID information block starting at address 0 */ + size = sizeof(struct mxt_info); + id_buf = kzalloc(size, GFP_KERNEL); + if (!id_buf) + return -ENOMEM; + + error = __mxt_read_reg(client, 0, size, id_buf); + if (error) + goto err_free_mem; + + /* Resize buffer to give space for rest of info block */ + num_objects = ((struct mxt_info *)id_buf)->object_num; + size += (num_objects * sizeof(struct mxt_object)) + + MXT_INFO_CHECKSUM_SIZE; + + buf = krealloc(id_buf, size, GFP_KERNEL); + if (!buf) { error = -ENOMEM; - goto free_object_table; + goto err_free_mem; + } + id_buf = buf; + + /* Read rest of info block */ + error = __mxt_read_reg(client, MXT_OBJECT_START, + size - MXT_OBJECT_START, + id_buf + MXT_OBJECT_START); + if (error) + goto err_free_mem; + + /* Extract & calculate checksum */ + crc_ptr = id_buf + size - MXT_INFO_CHECKSUM_SIZE; + data->info_crc = crc_ptr[0] | (crc_ptr[1] << 8) | (crc_ptr[2] << 16); + + calculated_crc = mxt_calculate_crc(id_buf, 0, + size - MXT_INFO_CHECKSUM_SIZE); + + /* + * CRC mismatch can be caused by data corruption due to I2C comms + * issue or else device is not using Object Based Protocol (eg i2c-hid) + */ + if ((data->info_crc == 0) || (data->info_crc != calculated_crc)) { + dev_err(&client->dev, + "Info Block CRC error calculated=0x%06X read=0x%06X\n", + calculated_crc, data->info_crc); + error = -EIO; + goto err_free_mem; + } + + data->raw_info_block = id_buf; + data->info = (struct mxt_info *)id_buf; + + dev_info(&client->dev, + "Family: %u Variant: %u Firmware V%u.%u.%02X Objects: %u\n", + data->info->family_id, data->info->variant_id, + data->info->version >> 4, data->info->version & 0xf, + data->info->build, data->info->object_num); + + /* Parse object table information */ + error = mxt_parse_object_table(data, id_buf + MXT_OBJECT_START); + if (error) { + dev_err(&client->dev, "Error %d parsing object table\n", error); + mxt_free_object_table(data); + goto err_free_mem; }
- data->object_table = object_table; + data->object_table = (struct mxt_object *)(id_buf + MXT_OBJECT_START);
return 0;
-free_object_table: - mxt_free_object_table(data); +err_free_mem: + kfree(id_buf); return error; }
@@ -2039,7 +2090,7 @@ static int mxt_initialize(struct mxt_dat int error;
while (1) { - error = mxt_get_info(data); + error = mxt_read_info_block(data); if (!error) break;
@@ -2070,16 +2121,9 @@ static int mxt_initialize(struct mxt_dat msleep(MXT_FW_RESET_TIME); }
- /* Get object table information */ - error = mxt_get_object_table(data); - if (error) { - dev_err(&client->dev, "Error %d reading object table\n", error); - return error; - } - error = mxt_acquire_irq(data); if (error) - goto err_free_object_table; + return error;
error = request_firmware_nowait(THIS_MODULE, true, MXT_CFG_NAME, &client->dev, GFP_KERNEL, data, @@ -2087,14 +2131,10 @@ static int mxt_initialize(struct mxt_dat if (error) { dev_err(&client->dev, "Failed to invoke firmware loader: %d\n", error); - goto err_free_object_table; + return error; }
return 0; - -err_free_object_table: - mxt_free_object_table(data); - return error; }
static int mxt_set_t7_power_cfg(struct mxt_data *data, u8 sleep) @@ -2155,7 +2195,7 @@ recheck: static u16 mxt_get_debug_value(struct mxt_data *data, unsigned int x, unsigned int y) { - struct mxt_info *info = &data->info; + struct mxt_info *info = data->info; struct mxt_dbg *dbg = &data->dbg; unsigned int ofs, page; unsigned int col = 0; @@ -2483,7 +2523,7 @@ static const struct video_device mxt_vid
static void mxt_debug_init(struct mxt_data *data) { - struct mxt_info *info = &data->info; + struct mxt_info *info = data->info; struct mxt_dbg *dbg = &data->dbg; struct mxt_object *object; int error; @@ -2569,7 +2609,6 @@ static int mxt_configure_objects(struct const struct firmware *cfg) { struct device *dev = &data->client->dev; - struct mxt_info *info = &data->info; int error;
error = mxt_init_t7_power_cfg(data); @@ -2594,11 +2633,6 @@ static int mxt_configure_objects(struct
mxt_debug_init(data);
- dev_info(dev, - "Family: %u Variant: %u Firmware V%u.%u.%02X Objects: %u\n", - info->family_id, info->variant_id, info->version >> 4, - info->version & 0xf, info->build, info->object_num); - return 0; }
@@ -2607,7 +2641,7 @@ static ssize_t mxt_fw_version_show(struc struct device_attribute *attr, char *buf) { struct mxt_data *data = dev_get_drvdata(dev); - struct mxt_info *info = &data->info; + struct mxt_info *info = data->info; return scnprintf(buf, PAGE_SIZE, "%u.%u.%02X\n", info->version >> 4, info->version & 0xf, info->build); } @@ -2617,7 +2651,7 @@ static ssize_t mxt_hw_version_show(struc struct device_attribute *attr, char *buf) { struct mxt_data *data = dev_get_drvdata(dev); - struct mxt_info *info = &data->info; + struct mxt_info *info = data->info; return scnprintf(buf, PAGE_SIZE, "%u.%u\n", info->family_id, info->variant_id); } @@ -2656,7 +2690,7 @@ static ssize_t mxt_object_show(struct de return -ENOMEM;
error = 0; - for (i = 0; i < data->info.object_num; i++) { + for (i = 0; i < data->info->object_num; i++) { object = data->object_table + i;
if (!mxt_object_readable(object->type))
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Arnd Bergmann arnd@arndb.de
[ Upstream commit a57ab96ef9dde231d4d46edba4d5f73720edc16a ]
We already have memcpy_toio(), but not memset_io(), so let's add the obvious version to allow building an allmodconfig kernel without errors like
drivers/gpu/drm/ttm/ttm_bo_util.c: In function 'ttm_bo_move_memcpy': drivers/gpu/drm/ttm/ttm_bo_util.c:390:3: error: implicit declaration of function 'memset_io' [-Werror=implicit-function-declaration]
Signed-off-by: Arnd Bergmann arnd@arndb.de Signed-off-by: Richard Kuo rkuo@codeaurora.org Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/hexagon/include/asm/io.h | 6 ++++++ 1 file changed, 6 insertions(+)
--- a/arch/hexagon/include/asm/io.h +++ b/arch/hexagon/include/asm/io.h @@ -216,6 +216,12 @@ static inline void memcpy_toio(volatile memcpy((void *) dst, src, count); }
+static inline void memset_io(volatile void __iomem *addr, int value, + size_t size) +{ + memset((void __force *)addr, value, size); +} + #define PCI_IO_ADDR (volatile void __iomem *)
/*
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Arnd Bergmann arnd@arndb.de
[ Upstream commit 330e261c35dfb969c48f996dbbc8b334b5ee8d9d ]
This is needed to link ipv6 as a loadable module, which in turn happens in allmodconfig.
Signed-off-by: Arnd Bergmann arnd@arndb.de Signed-off-by: Richard Kuo rkuo@codeaurora.org Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/hexagon/lib/checksum.c | 1 + 1 file changed, 1 insertion(+)
--- a/arch/hexagon/lib/checksum.c +++ b/arch/hexagon/lib/checksum.c @@ -199,3 +199,4 @@ csum_partial_copy_nocheck(const void *sr memcpy(dst, src, len); return csum_partial(dst, len, sum); } +EXPORT_SYMBOL(csum_partial_copy_nocheck);
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Jim Gill jgill@vmware.com
[ Upstream commit f4b024271ae3e9786e5d6f1c05b01b57a74e1d6d ]
The vmw_pvscsi driver returns DID_ABORT for commands aborted internally by the adapter, leading to the filesystem going read-only. Change the result to DID_BUS_BUSY, causing the kernel to retry the command.
Signed-off-by: Jim Gill jgill@vmware.com Signed-off-by: Martin K. Petersen martin.petersen@oracle.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/scsi/vmw_pvscsi.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/scsi/vmw_pvscsi.c +++ b/drivers/scsi/vmw_pvscsi.c @@ -609,7 +609,7 @@ static void pvscsi_complete_request(stru break;
case BTSTAT_ABORTQUEUE: - cmd->result = (DID_ABORT << 16); + cmd->result = (DID_BUS_BUSY << 16); break;
case BTSTAT_SCSIPARITY:
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Sekhar Nori nsekhar@ti.com
[ Upstream commit 9411ac07cd764be34bbd7ff09125a6b7b9175d4c ]
The GPIO chip is called davinci_gpio.0 in legacy mode. Fix it, so that I2C can correctly lookup the recovery gpios.
Note that it is the gpio-davinci driver that sets the gpiochip label to davinci_gpio.0.
Also, the I2C device uses an id of 1 on DM644x and DM355.
While at it, convert to using GPIO_TO_PIN() for referring to GPIO pin numbers, like it is done in rest of the board support files.
Fixes: e53537653791 ("i2c/ARM: davinci: Deep refactoring of I2C recovery") Reviewed-by: David Lechner david@lechnology.com Signed-off-by: Sekhar Nori nsekhar@ti.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/arm/mach-davinci/board-dm355-evm.c | 9 ++++++--- arch/arm/mach-davinci/board-dm644x-evm.c | 10 +++++++--- 2 files changed, 13 insertions(+), 6 deletions(-)
--- a/arch/arm/mach-davinci/board-dm355-evm.c +++ b/arch/arm/mach-davinci/board-dm355-evm.c @@ -110,12 +110,15 @@ static struct platform_device davinci_na }, };
+#define DM355_I2C_SDA_PIN GPIO_TO_PIN(0, 15) +#define DM355_I2C_SCL_PIN GPIO_TO_PIN(0, 14) + static struct gpiod_lookup_table i2c_recovery_gpiod_table = { - .dev_id = "i2c_davinci", + .dev_id = "i2c_davinci.1", .table = { - GPIO_LOOKUP("davinci_gpio", 15, "sda", + GPIO_LOOKUP("davinci_gpio.0", DM355_I2C_SDA_PIN, "sda", GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN), - GPIO_LOOKUP("davinci_gpio", 14, "scl", + GPIO_LOOKUP("davinci_gpio.0", DM355_I2C_SCL_PIN, "scl", GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN), }, }; --- a/arch/arm/mach-davinci/board-dm644x-evm.c +++ b/arch/arm/mach-davinci/board-dm644x-evm.c @@ -17,6 +17,7 @@ #include <linux/i2c.h> #include <linux/platform_data/pcf857x.h> #include <linux/platform_data/at24.h> +#include <linux/platform_data/gpio-davinci.h> #include <linux/mtd/mtd.h> #include <linux/mtd/rawnand.h> #include <linux/mtd/partitions.h> @@ -596,12 +597,15 @@ static struct i2c_board_info __initdata }, };
+#define DM644X_I2C_SDA_PIN GPIO_TO_PIN(2, 12) +#define DM644X_I2C_SCL_PIN GPIO_TO_PIN(2, 11) + static struct gpiod_lookup_table i2c_recovery_gpiod_table = { - .dev_id = "i2c_davinci", + .dev_id = "i2c_davinci.1", .table = { - GPIO_LOOKUP("davinci_gpio", 44, "sda", + GPIO_LOOKUP("davinci_gpio.0", DM644X_I2C_SDA_PIN, "sda", GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN), - GPIO_LOOKUP("davinci_gpio", 43, "scl", + GPIO_LOOKUP("davinci_gpio.0", DM644X_I2C_SCL_PIN, "scl", GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN), }, };
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Yixun Lan yixun.lan@amlogic.com
[ Upstream commit b84e54616a946f24eeeca8762cb70a9074b045e7 ]
The GPIOAO bank is range from GPIOAO_0 to GPIOAO_13.
Fixes: 83c566806a68 ("pinctrl: meson-axg: Add new pinctrl driver for Meson AXG SoC") Reported-by: Xingyu Chen xingyu.chen@amlogic.com Signed-off-by: Yixun Lan yixun.lan@amlogic.com Acked-by: Kevin Hilman khilman@baylibre.com Signed-off-by: Linus Walleij linus.walleij@linaro.org Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/pinctrl/meson/pinctrl-meson-axg.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/pinctrl/meson/pinctrl-meson-axg.c +++ b/drivers/pinctrl/meson/pinctrl-meson-axg.c @@ -898,7 +898,7 @@ static struct meson_bank meson_axg_perip
static struct meson_bank meson_axg_aobus_banks[] = { /* name first last irq pullen pull dir out in */ - BANK("AO", GPIOAO_0, GPIOAO_9, 0, 13, 0, 16, 0, 0, 0, 0, 0, 16, 1, 0), + BANK("AO", GPIOAO_0, GPIOAO_13, 0, 13, 0, 16, 0, 0, 0, 0, 0, 16, 1, 0), };
static struct meson_pmx_bank meson_axg_periphs_pmx_banks[] = {
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Mika Westerberg mika.westerberg@linux.intel.com
[ Upstream commit 83b9dc11312f48a561594a895672abb6cb2a2250 ]
When we dropped the custom Linux GPIO translation it resulted that the IRQ numbers changed slightly as well. Normally this would be fine because everyone is expected to use controller relative GPIO numbers and ACPI GpioIo/GpioInt resources. However, there is a certain set of Intel_Strago based Chromebooks where i8042 keyboard controller IRQ number is hardcoded be 182 (this is corrected with newer coreboot but the older ones still have the hardcoded Linux IRQ number). Because of this hardcoded IRQ number keyboard on those systems accidentally broke again.
Fix this by iteratively associating IRQ descriptors to the chip irqdomain so that there are no gaps on those systems. Other systems are not affected.
Fixes: 03c4749dd6c7 ("gpio / ACPI: Drop unnecessary ACPI GPIO to Linux GPIO translation") Link: https://bugzilla.kernel.org/show_bug.cgi?id=199463 Reported-by: Sultan Alsawaf sultanxda@gmail.com Signed-off-by: Mika Westerberg mika.westerberg@linux.intel.com Reviewed-by: Andy Shevchenko andriy.shevchenko@linux.intel.com Signed-off-by: Linus Walleij linus.walleij@linaro.org Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/pinctrl/intel/pinctrl-cherryview.c | 16 ++++++++++++---- 1 file changed, 12 insertions(+), 4 deletions(-)
--- a/drivers/pinctrl/intel/pinctrl-cherryview.c +++ b/drivers/pinctrl/intel/pinctrl-cherryview.c @@ -1622,22 +1622,30 @@ static int chv_gpio_probe(struct chv_pin
if (!need_valid_mask) { irq_base = devm_irq_alloc_descs(pctrl->dev, -1, 0, - chip->ngpio, NUMA_NO_NODE); + community->npins, NUMA_NO_NODE); if (irq_base < 0) { dev_err(pctrl->dev, "Failed to allocate IRQ numbers\n"); return irq_base; } - } else { - irq_base = 0; }
- ret = gpiochip_irqchip_add(chip, &chv_gpio_irqchip, irq_base, + ret = gpiochip_irqchip_add(chip, &chv_gpio_irqchip, 0, handle_bad_irq, IRQ_TYPE_NONE); if (ret) { dev_err(pctrl->dev, "failed to add IRQ chip\n"); return ret; }
+ if (!need_valid_mask) { + for (i = 0; i < community->ngpio_ranges; i++) { + range = &community->gpio_ranges[i]; + + irq_domain_associate_many(chip->irq.domain, irq_base, + range->base, range->npins); + irq_base += range->npins; + } + } + gpiochip_set_chained_irqchip(chip, &chv_gpio_irqchip, irq, chv_gpio_irq_handler); return 0;
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Ladislav Michl ladis@linux-mips.org
[ Upstream commit 6732cfd4cac514b556f36b518670af91c8bdf19a ]
dma_map_single does not work for vmalloc-ed buffers, so disable DMA in this case.
Signed-off-by: Ladislav Michl ladis@linux-mips.org Reported-by: "H. Nikolaus Schaller" hns@goldelico.com Tested-by: "H. Nikolaus Schaller" hns@goldelico.com Reviewed-by: Peter Ujfalusi peter.ujfalusi@ti.com Signed-off-by: Boris Brezillon boris.brezillon@bootlin.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/mtd/onenand/omap2.c | 105 +++++++++++++++----------------------------- 1 file changed, 38 insertions(+), 67 deletions(-)
--- a/drivers/mtd/onenand/omap2.c +++ b/drivers/mtd/onenand/omap2.c @@ -377,56 +377,42 @@ static int omap2_onenand_read_bufferram( { struct omap2_onenand *c = container_of(mtd, struct omap2_onenand, mtd); struct onenand_chip *this = mtd->priv; - dma_addr_t dma_src, dma_dst; - int bram_offset; + struct device *dev = &c->pdev->dev; void *buf = (void *)buffer; + dma_addr_t dma_src, dma_dst; + int bram_offset, err; size_t xtra; - int ret;
bram_offset = omap2_onenand_bufferram_offset(mtd, area) + area + offset; - if (bram_offset & 3 || (size_t)buf & 3 || count < 384) - goto out_copy; - - /* panic_write() may be in an interrupt context */ - if (in_interrupt() || oops_in_progress) + /* + * If the buffer address is not DMA-able, len is not long enough to make + * DMA transfers profitable or panic_write() may be in an interrupt + * context fallback to PIO mode. + */ + if (!virt_addr_valid(buf) || bram_offset & 3 || (size_t)buf & 3 || + count < 384 || in_interrupt() || oops_in_progress ) goto out_copy;
- if (buf >= high_memory) { - struct page *p1; - - if (((size_t)buf & PAGE_MASK) != - ((size_t)(buf + count - 1) & PAGE_MASK)) - goto out_copy; - p1 = vmalloc_to_page(buf); - if (!p1) - goto out_copy; - buf = page_address(p1) + ((size_t)buf & ~PAGE_MASK); - } - xtra = count & 3; if (xtra) { count -= xtra; memcpy(buf + count, this->base + bram_offset + count, xtra); }
+ dma_dst = dma_map_single(dev, buf, count, DMA_FROM_DEVICE); dma_src = c->phys_base + bram_offset; - dma_dst = dma_map_single(&c->pdev->dev, buf, count, DMA_FROM_DEVICE); - if (dma_mapping_error(&c->pdev->dev, dma_dst)) { - dev_err(&c->pdev->dev, - "Couldn't DMA map a %d byte buffer\n", - count); - goto out_copy; - }
- ret = omap2_onenand_dma_transfer(c, dma_src, dma_dst, count); - dma_unmap_single(&c->pdev->dev, dma_dst, count, DMA_FROM_DEVICE); - - if (ret) { - dev_err(&c->pdev->dev, "timeout waiting for DMA\n"); + if (dma_mapping_error(dev, dma_dst)) { + dev_err(dev, "Couldn't DMA map a %d byte buffer\n", count); goto out_copy; }
- return 0; + err = omap2_onenand_dma_transfer(c, dma_src, dma_dst, count); + dma_unmap_single(dev, dma_dst, count, DMA_FROM_DEVICE); + if (!err) + return 0; + + dev_err(dev, "timeout waiting for DMA\n");
out_copy: memcpy(buf, this->base + bram_offset, count); @@ -439,49 +425,34 @@ static int omap2_onenand_write_bufferram { struct omap2_onenand *c = container_of(mtd, struct omap2_onenand, mtd); struct onenand_chip *this = mtd->priv; - dma_addr_t dma_src, dma_dst; - int bram_offset; + struct device *dev = &c->pdev->dev; void *buf = (void *)buffer; - int ret; + dma_addr_t dma_src, dma_dst; + int bram_offset, err;
bram_offset = omap2_onenand_bufferram_offset(mtd, area) + area + offset; - if (bram_offset & 3 || (size_t)buf & 3 || count < 384) - goto out_copy; - - /* panic_write() may be in an interrupt context */ - if (in_interrupt() || oops_in_progress) + /* + * If the buffer address is not DMA-able, len is not long enough to make + * DMA transfers profitable or panic_write() may be in an interrupt + * context fallback to PIO mode. + */ + if (!virt_addr_valid(buf) || bram_offset & 3 || (size_t)buf & 3 || + count < 384 || in_interrupt() || oops_in_progress ) goto out_copy;
- if (buf >= high_memory) { - struct page *p1; - - if (((size_t)buf & PAGE_MASK) != - ((size_t)(buf + count - 1) & PAGE_MASK)) - goto out_copy; - p1 = vmalloc_to_page(buf); - if (!p1) - goto out_copy; - buf = page_address(p1) + ((size_t)buf & ~PAGE_MASK); - } - - dma_src = dma_map_single(&c->pdev->dev, buf, count, DMA_TO_DEVICE); + dma_src = dma_map_single(dev, buf, count, DMA_TO_DEVICE); dma_dst = c->phys_base + bram_offset; - if (dma_mapping_error(&c->pdev->dev, dma_src)) { - dev_err(&c->pdev->dev, - "Couldn't DMA map a %d byte buffer\n", - count); - return -1; - } - - ret = omap2_onenand_dma_transfer(c, dma_src, dma_dst, count); - dma_unmap_single(&c->pdev->dev, dma_src, count, DMA_TO_DEVICE); - - if (ret) { - dev_err(&c->pdev->dev, "timeout waiting for DMA\n"); + if (dma_mapping_error(dev, dma_src)) { + dev_err(dev, "Couldn't DMA map a %d byte buffer\n", count); goto out_copy; }
- return 0; + err = omap2_onenand_dma_transfer(c, dma_src, dma_dst, count); + dma_unmap_page(dev, dma_src, count, DMA_TO_DEVICE); + if (!err) + return 0; + + dev_err(dev, "timeout waiting for DMA\n");
out_copy: memcpy(this->base + bram_offset, buf, count);
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Daniel Borkmann daniel@iogearbox.net
[ Upstream commit 3aab8884c9eb99189a3569ac4e6b205371c9ac0b ]
While reviewing x64 JIT code, I noticed that we leak the prior allocated JIT image in the case where proglen != oldproglen during the JIT passes. Prior to the commit e0ee9c12157d ("x86: bpf_jit: fix two bugs in eBPF JIT compiler") we would just break out of the loop, and using the image as the JITed prog since it could only shrink in size anyway. After e0ee9c12157d, we would bail out to out_addrs label where we free addrs and jit_data but not the image coming from bpf_jit_binary_alloc().
Fixes: e0ee9c12157d ("x86: bpf_jit: fix two bugs in eBPF JIT compiler") Signed-off-by: Daniel Borkmann daniel@iogearbox.net Acked-by: Alexei Starovoitov ast@kernel.org Acked-by: David S. Miller davem@davemloft.net Signed-off-by: Alexei Starovoitov ast@kernel.org Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/x86/net/bpf_jit_comp.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
--- a/arch/x86/net/bpf_jit_comp.c +++ b/arch/x86/net/bpf_jit_comp.c @@ -1201,6 +1201,7 @@ skip_init_addrs: for (pass = 0; pass < 20 || image; pass++) { proglen = do_jit(prog, addrs, image, oldproglen, &ctx); if (proglen <= 0) { +out_image: image = NULL; if (header) bpf_jit_binary_free(header); @@ -1211,8 +1212,7 @@ skip_init_addrs: if (proglen != oldproglen) { pr_err("bpf_jit: proglen=%d != oldproglen=%d\n", proglen, oldproglen); - prog = orig_prog; - goto out_addrs; + goto out_image; } break; }
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Daniel Borkmann daniel@iogearbox.net
[ Upstream commit 39f56ca945af86112753646316c4c92dcd4acd82 ]
The JIT logic in jit_subprogs() is as follows: for all subprogs we allocate a bpf_prog_alloc(), populate it (prog->is_func = 1 here), and pass it to bpf_int_jit_compile(). If a failure occurred during JIT and prog->jited is not set, then we bail out from attempting to JIT the whole program, and punt to the interpreter instead. In case JITing went successful, we fixup BPF call offsets and do another pass to bpf_int_jit_compile() (extra_pass is true at that point) to complete JITing calls. Given that requires to pass JIT context around addrs and jit_data from x86 JIT are freed in the extra_pass in bpf_int_jit_compile() when calls are involved (if not, they can be freed immediately). However, if in the original pass, the JIT image didn't converge then we leak addrs and jit_data since image itself is NULL, the prog->is_func is set and extra_pass is false in that case, meaning both will become unreachable and are never cleaned up, therefore we need to free as well on !image. Only x64 JIT is affected.
Fixes: 1c2a088a6626 ("bpf: x64: add JIT support for multi-function programs") Signed-off-by: Daniel Borkmann daniel@iogearbox.net Acked-by: Alexei Starovoitov ast@kernel.org Acked-by: David S. Miller davem@davemloft.net Signed-off-by: Alexei Starovoitov ast@kernel.org Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/x86/net/bpf_jit_comp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/arch/x86/net/bpf_jit_comp.c +++ b/arch/x86/net/bpf_jit_comp.c @@ -1249,7 +1249,7 @@ out_image: prog = orig_prog; }
- if (!prog->is_func || extra_pass) { + if (!image || !prog->is_func || extra_pass) { out_addrs: kfree(addrs); kfree(jit_data);
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Helge Deller deller@gmx.de
[ Upstream commit b819439fea305a0bfd6ca23a7994fd1a8847c0d8 ]
Fix two section mismatches in drivers.c: 1) Section mismatch in reference from the function alloc_tree_node() to the function .init.text:create_tree_node(). 2) Section mismatch in reference from the function walk_native_bus() to the function .init.text:alloc_pa_dev().
Signed-off-by: Helge Deller deller@gmx.de Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/parisc/kernel/drivers.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-)
--- a/arch/parisc/kernel/drivers.c +++ b/arch/parisc/kernel/drivers.c @@ -448,7 +448,8 @@ static int match_by_id(struct device * d * Checks all the children of @parent for a matching @id. If none * found, it allocates a new device and returns it. */ -static struct parisc_device * alloc_tree_node(struct device *parent, char id) +static struct parisc_device * __init alloc_tree_node( + struct device *parent, char id) { struct match_id_data d = { .id = id, @@ -825,8 +826,8 @@ void walk_lower_bus(struct parisc_device * devices which are not physically connected (such as extra serial & * keyboard ports). This problem is not yet solved. */ -static void walk_native_bus(unsigned long io_io_low, unsigned long io_io_high, - struct device *parent) +static void __init walk_native_bus(unsigned long io_io_low, + unsigned long io_io_high, struct device *parent) { int i, devices_found = 0; unsigned long hpa = io_io_low;
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Peter Zijlstra peterz@infradead.org
[ Upstream commit 0b26351b910fb8fe6a056f8a1bbccabe50c0e19f ]
Matt reported the following deadlock:
CPU0 CPU1
schedule(.prev=migrate/0) <fault> pick_next_task() ... idle_balance() migrate_swap() active_balance() stop_two_cpus() spin_lock(stopper0->lock) spin_lock(stopper1->lock) ttwu(migrate/0) smp_cond_load_acquire() -- waits for schedule() stop_one_cpu(1) spin_lock(stopper1->lock) -- waits for stopper lock
Fix this deadlock by taking the wakeups out from under stopper->lock. This allows the active_balance() to queue the stop work and finish the context switch, which in turn allows the wakeup from migrate_swap() to observe the context and complete the wakeup.
Signed-off-by: Peter Zijlstra (Intel) peterz@infradead.org Reported-by: Matt Fleming matt@codeblueprint.co.uk Signed-off-by: Peter Zijlstra (Intel) peterz@infradead.org Acked-by: Matt Fleming matt@codeblueprint.co.uk Cc: Linus Torvalds torvalds@linux-foundation.org Cc: Michal Hocko mhocko@suse.com Cc: Mike Galbraith umgwanakikbuti@gmail.com Cc: Peter Zijlstra peterz@infradead.org Cc: Thomas Gleixner tglx@linutronix.de Link: http://lkml.kernel.org/r/20180420095005.GH4064@hirez.programming.kicks-ass.n... Signed-off-by: Ingo Molnar mingo@kernel.org Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- kernel/stop_machine.c | 19 ++++++++++++++----- 1 file changed, 14 insertions(+), 5 deletions(-)
--- a/kernel/stop_machine.c +++ b/kernel/stop_machine.c @@ -21,6 +21,7 @@ #include <linux/smpboot.h> #include <linux/atomic.h> #include <linux/nmi.h> +#include <linux/sched/wake_q.h>
/* * Structure to determine completion condition and record errors. May @@ -65,27 +66,31 @@ static void cpu_stop_signal_done(struct }
static void __cpu_stop_queue_work(struct cpu_stopper *stopper, - struct cpu_stop_work *work) + struct cpu_stop_work *work, + struct wake_q_head *wakeq) { list_add_tail(&work->list, &stopper->works); - wake_up_process(stopper->thread); + wake_q_add(wakeq, stopper->thread); }
/* queue @work to @stopper. if offline, @work is completed immediately */ static bool cpu_stop_queue_work(unsigned int cpu, struct cpu_stop_work *work) { struct cpu_stopper *stopper = &per_cpu(cpu_stopper, cpu); + DEFINE_WAKE_Q(wakeq); unsigned long flags; bool enabled;
spin_lock_irqsave(&stopper->lock, flags); enabled = stopper->enabled; if (enabled) - __cpu_stop_queue_work(stopper, work); + __cpu_stop_queue_work(stopper, work, &wakeq); else if (work->done) cpu_stop_signal_done(work->done); spin_unlock_irqrestore(&stopper->lock, flags);
+ wake_up_q(&wakeq); + return enabled; }
@@ -229,6 +234,7 @@ static int cpu_stop_queue_two_works(int { struct cpu_stopper *stopper1 = per_cpu_ptr(&cpu_stopper, cpu1); struct cpu_stopper *stopper2 = per_cpu_ptr(&cpu_stopper, cpu2); + DEFINE_WAKE_Q(wakeq); int err; retry: spin_lock_irq(&stopper1->lock); @@ -252,8 +258,8 @@ retry: goto unlock;
err = 0; - __cpu_stop_queue_work(stopper1, work1); - __cpu_stop_queue_work(stopper2, work2); + __cpu_stop_queue_work(stopper1, work1, &wakeq); + __cpu_stop_queue_work(stopper2, work2, &wakeq); unlock: spin_unlock(&stopper2->lock); spin_unlock_irq(&stopper1->lock); @@ -263,6 +269,9 @@ unlock: cpu_relax(); goto retry; } + + wake_up_q(&wakeq); + return err; } /**
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Peter Zijlstra peterz@infradead.org
[ Upstream commit 741a76b350897604c48fb12beff1c9b77724dc96 ]
Gaurav reported a problem with __kthread_parkme() where a concurrent try_to_wake_up() could result in competing stores to ->state which, when the TASK_PARKED store got lost bad things would happen.
The comment near set_current_state() actually mentions this competing store, but only mentions the case against TASK_RUNNING. This same store, with different timing, can happen against a subsequent !RUNNING store.
This normally is not a problem, because as per that same comment, the !RUNNING state store is inside a condition based wait-loop:
for (;;) { set_current_state(TASK_UNINTERRUPTIBLE); if (!need_sleep) break; schedule(); } __set_current_state(TASK_RUNNING);
If we loose the (first) TASK_UNINTERRUPTIBLE store to a previous (concurrent) wakeup, the schedule() will NO-OP and we'll go around the loop once more.
The problem here is that the TASK_PARKED store is not inside the KTHREAD_SHOULD_PARK condition wait-loop.
There is a genuine issue with sleeps that do not have a condition; this is addressed in a subsequent patch.
Reported-by: Gaurav Kohli gkohli@codeaurora.org Signed-off-by: Peter Zijlstra (Intel) peterz@infradead.org Reviewed-by: Oleg Nesterov oleg@redhat.com Cc: Linus Torvalds torvalds@linux-foundation.org Cc: Peter Zijlstra peterz@infradead.org Cc: Thomas Gleixner tglx@linutronix.de Signed-off-by: Ingo Molnar mingo@kernel.org Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- kernel/kthread.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-)
--- a/kernel/kthread.c +++ b/kernel/kthread.c @@ -177,12 +177,13 @@ void *kthread_probe_data(struct task_str
static void __kthread_parkme(struct kthread *self) { - __set_current_state(TASK_PARKED); - while (test_bit(KTHREAD_SHOULD_PARK, &self->flags)) { + for (;;) { + set_current_state(TASK_PARKED); + if (!test_bit(KTHREAD_SHOULD_PARK, &self->flags)) + break; if (!test_and_set_bit(KTHREAD_IS_PARKED, &self->flags)) complete(&self->parked); schedule(); - __set_current_state(TASK_PARKED); } clear_bit(KTHREAD_IS_PARKED, &self->flags); __set_current_state(TASK_RUNNING);
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Peter Zijlstra peterz@infradead.org
[ Upstream commit 85f1abe0019fcb3ea10df7029056cf42702283a8 ]
Even with the wait-loop fixed, there is a further issue with kthread_parkme(). Upon hotplug, when we do takedown_cpu(), smpboot_park_threads() can return before all those threads are in fact blocked, due to the placement of the complete() in __kthread_parkme().
When that happens, sched_cpu_dying() -> migrate_tasks() can end up migrating such a still runnable task onto another CPU.
Normally the task will have hit schedule() and gone to sleep by the time we do kthread_unpark(), which will then do __kthread_bind() to re-bind the task to the correct CPU.
However, when we loose the initial TASK_PARKED store to the concurrent wakeup issue described previously, do the complete(), get migrated, it is possible to either:
- observe kthread_unpark()'s clearing of SHOULD_PARK and terminate the park and set TASK_RUNNING, or
- __kthread_bind()'s wait_task_inactive() to observe the competing TASK_RUNNING store.
Either way the WARN() in __kthread_bind() will trigger and fail to correctly set the CPU affinity.
Fix this by only issuing the complete() when the kthread has scheduled out. This does away with all the icky 'still running' nonsense.
The alternative is to promote TASK_PARKED to a special state, this guarantees wait_task_inactive() cannot observe a 'stale' TASK_RUNNING and we'll end up doing the right thing, but this preserves the whole icky business of potentially migating the still runnable thing.
Reported-by: Gaurav Kohli gkohli@codeaurora.org Signed-off-by: Peter Zijlstra (Intel) peterz@infradead.org Cc: Linus Torvalds torvalds@linux-foundation.org Cc: Oleg Nesterov oleg@redhat.com Cc: Peter Zijlstra peterz@infradead.org Cc: Thomas Gleixner tglx@linutronix.de Signed-off-by: Ingo Molnar mingo@kernel.org Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- include/linux/kthread.h | 1 + kernel/kthread.c | 43 +++++++++++++++++++------------------------ kernel/sched/core.c | 32 +++++++++++++++++++++----------- 3 files changed, 41 insertions(+), 35 deletions(-)
--- a/include/linux/kthread.h +++ b/include/linux/kthread.h @@ -62,6 +62,7 @@ void *kthread_probe_data(struct task_str int kthread_park(struct task_struct *k); void kthread_unpark(struct task_struct *k); void kthread_parkme(void); +void kthread_park_complete(struct task_struct *k);
int kthreadd(void *unused); extern struct task_struct *kthreadd_task; --- a/kernel/kthread.c +++ b/kernel/kthread.c @@ -55,7 +55,6 @@ enum KTHREAD_BITS { KTHREAD_IS_PER_CPU = 0, KTHREAD_SHOULD_STOP, KTHREAD_SHOULD_PARK, - KTHREAD_IS_PARKED, };
static inline void set_kthread_struct(void *kthread) @@ -181,11 +180,8 @@ static void __kthread_parkme(struct kthr set_current_state(TASK_PARKED); if (!test_bit(KTHREAD_SHOULD_PARK, &self->flags)) break; - if (!test_and_set_bit(KTHREAD_IS_PARKED, &self->flags)) - complete(&self->parked); schedule(); } - clear_bit(KTHREAD_IS_PARKED, &self->flags); __set_current_state(TASK_RUNNING); }
@@ -195,6 +191,11 @@ void kthread_parkme(void) } EXPORT_SYMBOL_GPL(kthread_parkme);
+void kthread_park_complete(struct task_struct *k) +{ + complete(&to_kthread(k)->parked); +} + static int kthread(void *_create) { /* Copy data: it's on kthread's stack */ @@ -451,22 +452,15 @@ void kthread_unpark(struct task_struct * { struct kthread *kthread = to_kthread(k);
- clear_bit(KTHREAD_SHOULD_PARK, &kthread->flags); /* - * We clear the IS_PARKED bit here as we don't wait - * until the task has left the park code. So if we'd - * park before that happens we'd see the IS_PARKED bit - * which might be about to be cleared. + * Newly created kthread was parked when the CPU was offline. + * The binding was lost and we need to set it again. */ - if (test_and_clear_bit(KTHREAD_IS_PARKED, &kthread->flags)) { - /* - * Newly created kthread was parked when the CPU was offline. - * The binding was lost and we need to set it again. - */ - if (test_bit(KTHREAD_IS_PER_CPU, &kthread->flags)) - __kthread_bind(k, kthread->cpu, TASK_PARKED); - wake_up_state(k, TASK_PARKED); - } + if (test_bit(KTHREAD_IS_PER_CPU, &kthread->flags)) + __kthread_bind(k, kthread->cpu, TASK_PARKED); + + clear_bit(KTHREAD_SHOULD_PARK, &kthread->flags); + wake_up_state(k, TASK_PARKED); } EXPORT_SYMBOL_GPL(kthread_unpark);
@@ -489,12 +483,13 @@ int kthread_park(struct task_struct *k) if (WARN_ON(k->flags & PF_EXITING)) return -ENOSYS;
- if (!test_bit(KTHREAD_IS_PARKED, &kthread->flags)) { - set_bit(KTHREAD_SHOULD_PARK, &kthread->flags); - if (k != current) { - wake_up_process(k); - wait_for_completion(&kthread->parked); - } + if (WARN_ON_ONCE(test_bit(KTHREAD_SHOULD_PARK, &kthread->flags))) + return -EBUSY; + + set_bit(KTHREAD_SHOULD_PARK, &kthread->flags); + if (k != current) { + wake_up_process(k); + wait_for_completion(&kthread->parked); }
return 0; --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -30,6 +30,8 @@ #include <linux/syscalls.h> #include <linux/sched/isolation.h>
+#include <linux/kthread.h> + #include <asm/switch_to.h> #include <asm/tlb.h> #ifdef CONFIG_PARAVIRT @@ -2733,20 +2735,28 @@ static struct rq *finish_task_switch(str membarrier_mm_sync_core_before_usermode(mm); mmdrop(mm); } - if (unlikely(prev_state == TASK_DEAD)) { - if (prev->sched_class->task_dead) - prev->sched_class->task_dead(prev); + if (unlikely(prev_state & (TASK_DEAD|TASK_PARKED))) { + switch (prev_state) { + case TASK_DEAD: + if (prev->sched_class->task_dead) + prev->sched_class->task_dead(prev); + + /* + * Remove function-return probe instances associated with this + * task and put them back on the free list. + */ + kprobe_flush_task(prev);
- /* - * Remove function-return probe instances associated with this - * task and put them back on the free list. - */ - kprobe_flush_task(prev); + /* Task is done with its stack. */ + put_task_stack(prev);
- /* Task is done with its stack. */ - put_task_stack(prev); + put_task_struct(prev); + break;
- put_task_struct(prev); + case TASK_PARKED: + kthread_park_complete(prev); + break; + } }
tick_nohz_task_switch();
Hi Greg,
As more patches related to this are coming in 4.17, so it is better if all go together on different branches, plz suggest.
Regards Gaurav
On 6/18/2018 1:42 PM, Greg Kroah-Hartman wrote:
4.16-stable review patch. If anyone has any objections, please let me know.
From: Peter Zijlstra peterz@infradead.org
[ Upstream commit 85f1abe0019fcb3ea10df7029056cf42702283a8 ]
Even with the wait-loop fixed, there is a further issue with kthread_parkme(). Upon hotplug, when we do takedown_cpu(), smpboot_park_threads() can return before all those threads are in fact blocked, due to the placement of the complete() in __kthread_parkme().
When that happens, sched_cpu_dying() -> migrate_tasks() can end up migrating such a still runnable task onto another CPU.
Normally the task will have hit schedule() and gone to sleep by the time we do kthread_unpark(), which will then do __kthread_bind() to re-bind the task to the correct CPU.
However, when we loose the initial TASK_PARKED store to the concurrent wakeup issue described previously, do the complete(), get migrated, it is possible to either:
observe kthread_unpark()'s clearing of SHOULD_PARK and terminate the park and set TASK_RUNNING, or
__kthread_bind()'s wait_task_inactive() to observe the competing TASK_RUNNING store.
Either way the WARN() in __kthread_bind() will trigger and fail to correctly set the CPU affinity.
Fix this by only issuing the complete() when the kthread has scheduled out. This does away with all the icky 'still running' nonsense.
The alternative is to promote TASK_PARKED to a special state, this guarantees wait_task_inactive() cannot observe a 'stale' TASK_RUNNING and we'll end up doing the right thing, but this preserves the whole icky business of potentially migating the still runnable thing.
Reported-by: Gaurav Kohli gkohli@codeaurora.org Signed-off-by: Peter Zijlstra (Intel) peterz@infradead.org Cc: Linus Torvalds torvalds@linux-foundation.org Cc: Oleg Nesterov oleg@redhat.com Cc: Peter Zijlstra peterz@infradead.org Cc: Thomas Gleixner tglx@linutronix.de Signed-off-by: Ingo Molnar mingo@kernel.org Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
include/linux/kthread.h | 1 + kernel/kthread.c | 43 +++++++++++++++++++------------------------ kernel/sched/core.c | 32 +++++++++++++++++++++----------- 3 files changed, 41 insertions(+), 35 deletions(-)
--- a/include/linux/kthread.h +++ b/include/linux/kthread.h @@ -62,6 +62,7 @@ void *kthread_probe_data(struct task_str int kthread_park(struct task_struct *k); void kthread_unpark(struct task_struct *k); void kthread_parkme(void); +void kthread_park_complete(struct task_struct *k); int kthreadd(void *unused); extern struct task_struct *kthreadd_task; --- a/kernel/kthread.c +++ b/kernel/kthread.c @@ -55,7 +55,6 @@ enum KTHREAD_BITS { KTHREAD_IS_PER_CPU = 0, KTHREAD_SHOULD_STOP, KTHREAD_SHOULD_PARK,
- KTHREAD_IS_PARKED, };
static inline void set_kthread_struct(void *kthread) @@ -181,11 +180,8 @@ static void __kthread_parkme(struct kthr set_current_state(TASK_PARKED); if (!test_bit(KTHREAD_SHOULD_PARK, &self->flags)) break;
if (!test_and_set_bit(KTHREAD_IS_PARKED, &self->flags))
schedule(); }complete(&self->parked);
- clear_bit(KTHREAD_IS_PARKED, &self->flags); __set_current_state(TASK_RUNNING); }
@@ -195,6 +191,11 @@ void kthread_parkme(void) } EXPORT_SYMBOL_GPL(kthread_parkme); +void kthread_park_complete(struct task_struct *k) +{
- complete(&to_kthread(k)->parked);
+}
- static int kthread(void *_create) { /* Copy data: it's on kthread's stack */
@@ -451,22 +452,15 @@ void kthread_unpark(struct task_struct * { struct kthread *kthread = to_kthread(k);
- clear_bit(KTHREAD_SHOULD_PARK, &kthread->flags); /*
* We clear the IS_PARKED bit here as we don't wait
* until the task has left the park code. So if we'd
* park before that happens we'd see the IS_PARKED bit
* which might be about to be cleared.
* Newly created kthread was parked when the CPU was offline.
*/* The binding was lost and we need to set it again.
- if (test_and_clear_bit(KTHREAD_IS_PARKED, &kthread->flags)) {
/*
* Newly created kthread was parked when the CPU was offline.
* The binding was lost and we need to set it again.
*/
if (test_bit(KTHREAD_IS_PER_CPU, &kthread->flags))
__kthread_bind(k, kthread->cpu, TASK_PARKED);
wake_up_state(k, TASK_PARKED);
- }
- if (test_bit(KTHREAD_IS_PER_CPU, &kthread->flags))
__kthread_bind(k, kthread->cpu, TASK_PARKED);
- clear_bit(KTHREAD_SHOULD_PARK, &kthread->flags);
- wake_up_state(k, TASK_PARKED); } EXPORT_SYMBOL_GPL(kthread_unpark);
@@ -489,12 +483,13 @@ int kthread_park(struct task_struct *k) if (WARN_ON(k->flags & PF_EXITING)) return -ENOSYS;
- if (!test_bit(KTHREAD_IS_PARKED, &kthread->flags)) {
set_bit(KTHREAD_SHOULD_PARK, &kthread->flags);
if (k != current) {
wake_up_process(k);
wait_for_completion(&kthread->parked);
}
- if (WARN_ON_ONCE(test_bit(KTHREAD_SHOULD_PARK, &kthread->flags)))
return -EBUSY;
- set_bit(KTHREAD_SHOULD_PARK, &kthread->flags);
- if (k != current) {
wake_up_process(k);
}wait_for_completion(&kthread->parked);
return 0; --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -30,6 +30,8 @@ #include <linux/syscalls.h> #include <linux/sched/isolation.h> +#include <linux/kthread.h>
- #include <asm/switch_to.h> #include <asm/tlb.h> #ifdef CONFIG_PARAVIRT
@@ -2733,20 +2735,28 @@ static struct rq *finish_task_switch(str membarrier_mm_sync_core_before_usermode(mm); mmdrop(mm); }
- if (unlikely(prev_state == TASK_DEAD)) {
if (prev->sched_class->task_dead)
prev->sched_class->task_dead(prev);
- if (unlikely(prev_state & (TASK_DEAD|TASK_PARKED))) {
switch (prev_state) {
case TASK_DEAD:
if (prev->sched_class->task_dead)
prev->sched_class->task_dead(prev);
/*
* Remove function-return probe instances associated with this
* task and put them back on the free list.
*/
kprobe_flush_task(prev);
/*
* Remove function-return probe instances associated with this
* task and put them back on the free list.
*/
kprobe_flush_task(prev);
/* Task is done with its stack. */
put_task_stack(prev);
/* Task is done with its stack. */
put_task_stack(prev);
put_task_struct(prev);
break;
put_task_struct(prev);
case TASK_PARKED:
kthread_park_complete(prev);
break;
}}
tick_nohz_task_switch();
On Wed, Jun 20, 2018 at 12:10:31PM +0530, Kohli, Gaurav wrote:
Hi Greg,
As more patches related to this are coming in 4.17, so it is better if all go together on different branches, plz suggest.
I do not understand, sorry. What is wrong with this as-is? If I need to take other patches as well, please let me know what commits and what stable tree(s) they belong on.
thanks,
greg k-h
HI Greg,
Yes more patches related to this are coming, https://lkml.org/lkml/2018/6/7/317
So i thought, if all go together then it is good.
Regards Gaurav
On 6/21/2018 12:21 AM, Greg Kroah-Hartman wrote:
On Wed, Jun 20, 2018 at 12:10:31PM +0530, Kohli, Gaurav wrote:
Hi Greg,
As more patches related to this are coming in 4.17, so it is better if all go together on different branches, plz suggest.
I do not understand, sorry. What is wrong with this as-is? If I need to take other patches as well, please let me know what commits and what stable tree(s) they belong on.
thanks,
greg k-h
On Thu, Jun 21, 2018 at 07:10:11PM +0530, Kohli, Gaurav wrote:
HI Greg,
Yes more patches related to this are coming, https://lkml.org/lkml/2018/6/7/317
So i thought, if all go together then it is good.
I still do not understand what you are asking me to do here. Maybe it's the jetlag, but can you spell it out for me?
thanks,
greg k-h
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Bhadram Varka vbhadram@nvidia.com
[ Upstream commit 9df50ba76ac1485b844beffa1f3f5d9659d9cdaf ]
Need to configure PHY interrupt as active low for P3310 Tegra186 platform otherwise it results in spurious interrupts.
This issue wasn't seen before because the generic PHY driver without interrupt support was used.
Signed-off-by: Bhadram Varka vbhadram@nvidia.com Signed-off-by: Thierry Reding treding@nvidia.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/arm64/boot/dts/nvidia/tegra186-p3310.dtsi | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/arch/arm64/boot/dts/nvidia/tegra186-p3310.dtsi +++ b/arch/arm64/boot/dts/nvidia/tegra186-p3310.dtsi @@ -46,7 +46,7 @@ compatible = "ethernet-phy-ieee802.3-c22"; reg = <0x0>; interrupt-parent = <&gpio>; - interrupts = <TEGRA_MAIN_GPIO(M, 5) IRQ_TYPE_LEVEL_HIGH>; + interrupts = <TEGRA_MAIN_GPIO(M, 5) IRQ_TYPE_LEVEL_LOW>; }; }; };
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Jagannathan Raman jag.raman@oracle.com
[ Upstream commit aa7528fe3576d11f4a10237178a723a1f080a547 ]
It was noticed that the IRTE configured for guest OS kernel was over-written while the guest was running. As a result, vt-d Posted Interrupts configured for the guest are not being delivered directly, and instead bounces off the host. Every interrupt delivery takes a VM Exit.
It was noticed that the following stack is doing the over-write: [ 147.463177] modify_irte+0x171/0x1f0 [ 147.463405] intel_ir_set_affinity+0x5c/0x80 [ 147.463641] msi_domain_set_affinity+0x32/0x90 [ 147.463881] irq_do_set_affinity+0x37/0xd0 [ 147.464125] irq_set_affinity_locked+0x9d/0xb0 [ 147.464374] __irq_set_affinity+0x42/0x70 [ 147.464627] write_irq_affinity.isra.5+0xe1/0x110 [ 147.464895] proc_reg_write+0x38/0x70 [ 147.465150] __vfs_write+0x36/0x180 [ 147.465408] ? handle_mm_fault+0xdf/0x200 [ 147.465671] ? _cond_resched+0x15/0x30 [ 147.465936] vfs_write+0xad/0x1a0 [ 147.466204] SyS_write+0x52/0xc0 [ 147.466472] do_syscall_64+0x74/0x1a0 [ 147.466744] entry_SYSCALL_64_after_hwframe+0x3d/0xa2
reversing the sense of force check in intel_ir_reconfigure_irte() restores proper posted interrupt functionality
Signed-off-by: Jagannathan Raman jag.raman@oracle.com Fixes: d491bdff888e ('iommu/vt-d: Reevaluate vector configuration on activate()') Signed-off-by: Joerg Roedel jroedel@suse.de Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/iommu/intel_irq_remapping.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/iommu/intel_irq_remapping.c +++ b/drivers/iommu/intel_irq_remapping.c @@ -1136,7 +1136,7 @@ static void intel_ir_reconfigure_irte(st irte->dest_id = IRTE_DEST(cfg->dest_apicid);
/* Update the hardware only if the interrupt is in remapped mode. */ - if (!force || ir_data->irq_2_iommu.mode == IRQ_REMAPPING) + if (force || ir_data->irq_2_iommu.mode == IRQ_REMAPPING) modify_irte(&ir_data->irq_2_iommu, irte); }
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Changbin Du changbin.du@intel.com
[ Upstream commit 0dfc0c792d691f8056f38b5c30789f504be0e467 ]
It allows to flush more than 4GB of device TLBs. So the mask should be 64bit wide. UBSAN captured this fault as below.
[ 3.760024] ================================================================================ [ 3.768440] UBSAN: Undefined behaviour in drivers/iommu/dmar.c:1348:3 [ 3.774864] shift exponent 64 is too large for 32-bit type 'int' [ 3.780853] CPU: 2 PID: 0 Comm: swapper/2 Tainted: G U 4.17.0-rc1+ #89 [ 3.788661] Hardware name: Dell Inc. OptiPlex 7040/0Y7WYT, BIOS 1.2.8 01/26/2016 [ 3.796034] Call Trace: [ 3.798472] <IRQ> [ 3.800479] dump_stack+0x90/0xfb [ 3.803787] ubsan_epilogue+0x9/0x40 [ 3.807353] __ubsan_handle_shift_out_of_bounds+0x10e/0x170 [ 3.812916] ? qi_flush_dev_iotlb+0x124/0x180 [ 3.817261] qi_flush_dev_iotlb+0x124/0x180 [ 3.821437] iommu_flush_dev_iotlb+0x94/0xf0 [ 3.825698] iommu_flush_iova+0x10b/0x1c0 [ 3.829699] ? fq_ring_free+0x1d0/0x1d0 [ 3.833527] iova_domain_flush+0x25/0x40 [ 3.837448] fq_flush_timeout+0x55/0x160 [ 3.841368] ? fq_ring_free+0x1d0/0x1d0 [ 3.845200] ? fq_ring_free+0x1d0/0x1d0 [ 3.849034] call_timer_fn+0xbe/0x310 [ 3.852696] ? fq_ring_free+0x1d0/0x1d0 [ 3.856530] run_timer_softirq+0x223/0x6e0 [ 3.860625] ? sched_clock+0x5/0x10 [ 3.864108] ? sched_clock+0x5/0x10 [ 3.867594] __do_softirq+0x1b5/0x6f5 [ 3.871250] irq_exit+0xd4/0x130 [ 3.874470] smp_apic_timer_interrupt+0xb8/0x2f0 [ 3.879075] apic_timer_interrupt+0xf/0x20 [ 3.883159] </IRQ> [ 3.885255] RIP: 0010:poll_idle+0x60/0xe7 [ 3.889252] RSP: 0018:ffffb1b201943e30 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 3.896802] RAX: 0000000080200000 RBX: 000000000000008e RCX: 000000000000001f [ 3.903918] RDX: 0000000000000000 RSI: 000000002819aa06 RDI: 0000000000000000 [ 3.911031] RBP: ffff9e93c6b33280 R08: 00000010f717d567 R09: 000000000010d205 [ 3.918146] R10: ffffb1b201943df8 R11: 0000000000000001 R12: 00000000e01b169d [ 3.925260] R13: 0000000000000000 R14: ffffffffb12aa400 R15: 0000000000000000 [ 3.932382] cpuidle_enter_state+0xb4/0x470 [ 3.936558] do_idle+0x222/0x310 [ 3.939779] cpu_startup_entry+0x78/0x90 [ 3.943693] start_secondary+0x205/0x2e0 [ 3.947607] secondary_startup_64+0xa5/0xb0 [ 3.951783] ================================================================================
Signed-off-by: Changbin Du changbin.du@intel.com Signed-off-by: Joerg Roedel jroedel@suse.de Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/iommu/dmar.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/iommu/dmar.c +++ b/drivers/iommu/dmar.c @@ -1345,7 +1345,7 @@ void qi_flush_dev_iotlb(struct intel_iom struct qi_desc desc;
if (mask) { - BUG_ON(addr & ((1 << (VTD_PAGE_SHIFT + mask)) - 1)); + BUG_ON(addr & ((1ULL << (VTD_PAGE_SHIFT + mask)) - 1)); addr |= (1ULL << (VTD_PAGE_SHIFT + mask - 1)) - 1; desc.high = QI_DEV_IOTLB_ADDR(addr) | QI_DEV_IOTLB_SIZE; } else
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Chengguang Xu cgxu519@gmx.com
[ Upstream commit 59a2f3f00fd744dbad22593f47552037d3154ca6 ]
When specifying same string type option several times, current option parsing may cause memory leak. Hence, call kfree for previous one in this case.
Signed-off-by: Chengguang Xu cgxu519@gmx.com Reviewed-by: Christoph Hellwig hch@lst.de Reviewed-by: Sagi Grimberg sagi@grimberg.me Signed-off-by: Keith Busch keith.busch@intel.com Signed-off-by: Jens Axboe axboe@kernel.dk Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/nvme/host/fabrics.c | 6 ++++++ 1 file changed, 6 insertions(+)
--- a/drivers/nvme/host/fabrics.c +++ b/drivers/nvme/host/fabrics.c @@ -668,6 +668,7 @@ static int nvmf_parse_options(struct nvm ret = -ENOMEM; goto out; } + kfree(opts->transport); opts->transport = p; break; case NVMF_OPT_NQN: @@ -676,6 +677,7 @@ static int nvmf_parse_options(struct nvm ret = -ENOMEM; goto out; } + kfree(opts->subsysnqn); opts->subsysnqn = p; nqnlen = strlen(opts->subsysnqn); if (nqnlen >= NVMF_NQN_SIZE) { @@ -698,6 +700,7 @@ static int nvmf_parse_options(struct nvm ret = -ENOMEM; goto out; } + kfree(opts->traddr); opts->traddr = p; break; case NVMF_OPT_TRSVCID: @@ -706,6 +709,7 @@ static int nvmf_parse_options(struct nvm ret = -ENOMEM; goto out; } + kfree(opts->trsvcid); opts->trsvcid = p; break; case NVMF_OPT_QUEUE_SIZE: @@ -792,6 +796,7 @@ static int nvmf_parse_options(struct nvm ret = -EINVAL; goto out; } + nvmf_host_put(opts->host); opts->host = nvmf_host_add(p); kfree(p); if (!opts->host) { @@ -817,6 +822,7 @@ static int nvmf_parse_options(struct nvm ret = -ENOMEM; goto out; } + kfree(opts->host_traddr); opts->host_traddr = p; break; case NVMF_OPT_HOST_ID:
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Keith Busch keith.busch@intel.com
[ Upstream commit f31a21103c03bb62846409fdc60cc9faf2398cfb ]
If the command a separate metadata buffer attached, the request needs to have the integrity flag set so the driver knows to map it.
Signed-off-by: Keith Busch keith.busch@intel.com Reviewed-by: Martin K. Petersen martin.petersen@oracle.com Signed-off-by: Jens Axboe axboe@kernel.dk Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/nvme/host/core.c | 1 + 1 file changed, 1 insertion(+)
--- a/drivers/nvme/host/core.c +++ b/drivers/nvme/host/core.c @@ -767,6 +767,7 @@ static int nvme_submit_user_cmd(struct r ret = PTR_ERR(meta); goto out_unmap; } + req->cmd_flags |= REQ_INTEGRITY; } }
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Keith Busch keith.busch@intel.com
[ Upstream commit 5cadde8019a6a80550fdde92d5a3327565974eab ]
We can't allow the user to change multipath settings at runtime, as this will create naming conflicts due to the different naming schemes used for each mode.
Signed-off-by: Keith Busch keith.busch@intel.com Reviewed-by: Christoph Hellwig hch@lst.de Signed-off-by: Jens Axboe axboe@kernel.dk Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/nvme/host/multipath.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/nvme/host/multipath.c +++ b/drivers/nvme/host/multipath.c @@ -15,7 +15,7 @@ #include "nvme.h"
static bool multipath = true; -module_param(multipath, bool, 0644); +module_param(multipath, bool, 0444); MODULE_PARM_DESC(multipath, "turn on native support for multiple controllers per subsystem");
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Keith Busch keith.busch@intel.com
[ Upstream commit a785dbccd95c37606c720580714f5a7a8b3255f1 ]
When CONFIG_NVME_MULTIPATH is set, but we're not using nvme to multipath, namespaces with multiple paths were not creating unique names due to reusing the same instance number from the namespace's head.
This patch fixes this by falling back to the non-multipath naming method when the parameter disabled using multipath.
Reported-by: Mike Snitzer snitzer@redhat.com Signed-off-by: Keith Busch keith.busch@intel.com Reviewed-by: Christoph Hellwig hch@lst.de Signed-off-by: Jens Axboe axboe@kernel.dk Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/nvme/host/core.c | 26 +------------------------- drivers/nvme/host/multipath.c | 22 ++++++++++++++++++++++ drivers/nvme/host/nvme.h | 12 ++++++++++++ 3 files changed, 35 insertions(+), 25 deletions(-)
--- a/drivers/nvme/host/core.c +++ b/drivers/nvme/host/core.c @@ -2979,31 +2979,7 @@ static void nvme_alloc_ns(struct nvme_ct if (nvme_init_ns_head(ns, nsid, id)) goto out_free_id; nvme_setup_streams_ns(ctrl, ns); - -#ifdef CONFIG_NVME_MULTIPATH - /* - * If multipathing is enabled we need to always use the subsystem - * instance number for numbering our devices to avoid conflicts - * between subsystems that have multiple controllers and thus use - * the multipath-aware subsystem node and those that have a single - * controller and use the controller node directly. - */ - if (ns->head->disk) { - sprintf(disk_name, "nvme%dc%dn%d", ctrl->subsys->instance, - ctrl->cntlid, ns->head->instance); - flags = GENHD_FL_HIDDEN; - } else { - sprintf(disk_name, "nvme%dn%d", ctrl->subsys->instance, - ns->head->instance); - } -#else - /* - * But without the multipath code enabled, multiple controller per - * subsystems are visible as devices and thus we cannot use the - * subsystem instance. - */ - sprintf(disk_name, "nvme%dn%d", ctrl->instance, ns->head->instance); -#endif + nvme_set_disk_name(disk_name, ns, ctrl, &flags);
if ((ctrl->quirks & NVME_QUIRK_LIGHTNVM) && id->vs[0] == 0x1) { if (nvme_nvm_register(ns, disk_name, node)) { --- a/drivers/nvme/host/multipath.c +++ b/drivers/nvme/host/multipath.c @@ -19,6 +19,28 @@ module_param(multipath, bool, 0444); MODULE_PARM_DESC(multipath, "turn on native support for multiple controllers per subsystem");
+/* + * If multipathing is enabled we need to always use the subsystem instance + * number for numbering our devices to avoid conflicts between subsystems that + * have multiple controllers and thus use the multipath-aware subsystem node + * and those that have a single controller and use the controller node + * directly. + */ +void nvme_set_disk_name(char *disk_name, struct nvme_ns *ns, + struct nvme_ctrl *ctrl, int *flags) +{ + if (!multipath) { + sprintf(disk_name, "nvme%dn%d", ctrl->instance, ns->head->instance); + } else if (ns->head->disk) { + sprintf(disk_name, "nvme%dc%dn%d", ctrl->subsys->instance, + ctrl->cntlid, ns->head->instance); + *flags = GENHD_FL_HIDDEN; + } else { + sprintf(disk_name, "nvme%dn%d", ctrl->subsys->instance, + ns->head->instance); + } +} + void nvme_failover_req(struct request *req) { struct nvme_ns *ns = req->q->queuedata; --- a/drivers/nvme/host/nvme.h +++ b/drivers/nvme/host/nvme.h @@ -411,6 +411,8 @@ extern const struct attribute_group nvme extern const struct block_device_operations nvme_ns_head_ops;
#ifdef CONFIG_NVME_MULTIPATH +void nvme_set_disk_name(char *disk_name, struct nvme_ns *ns, + struct nvme_ctrl *ctrl, int *flags); void nvme_failover_req(struct request *req); bool nvme_req_needs_failover(struct request *req, blk_status_t error); void nvme_kick_requeue_lists(struct nvme_ctrl *ctrl); @@ -436,6 +438,16 @@ static inline void nvme_mpath_check_last }
#else +/* + * Without the multipath code enabled, multiple controller per subsystems are + * visible as devices and thus we cannot use the subsystem instance. + */ +static inline void nvme_set_disk_name(char *disk_name, struct nvme_ns *ns, + struct nvme_ctrl *ctrl, int *flags) +{ + sprintf(disk_name, "nvme%dn%d", ctrl->instance, ns->head->instance); +} + static inline void nvme_failover_req(struct request *req) { }
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Janusz Krzysztofik jmkrzyszt@gmail.com
[ Upstream commit baf64250b4a513bf4ac226fd938692dc1836f4f6 ]
The deferred_fiq handler used to limit hardware operations to IRQ unmask only, relying on gpio-omap assigned handler performing the ACKs. Since commit 80ac93c27441 ("gpio: omap: Fix lost edge interrupts") this is no longer the case as handle_edge_irq() has been replaced with handle_simmple_irq() which doesn't touch the hardware.
Add single ACK operation per each active IRQ pin to the handler. While being at it, move unmask operation out of irq_counter loop so it is also called only once for each active IRQ pin.
Fixes: 80ac93c27441 ("gpio: omap: Fix lost edge interrupts") Signed-off-by: Janusz Krzysztofik jmkrzyszt@gmail.com Signed-off-by: Tony Lindgren tony@atomide.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/arm/mach-omap1/ams-delta-fiq.c | 26 ++++++++++++++------------ 1 file changed, 14 insertions(+), 12 deletions(-)
--- a/arch/arm/mach-omap1/ams-delta-fiq.c +++ b/arch/arm/mach-omap1/ams-delta-fiq.c @@ -58,22 +58,24 @@ static irqreturn_t deferred_fiq(int irq, irq_num = gpio_to_irq(gpio); fiq_count = fiq_buffer[FIQ_CNT_INT_00 + gpio];
- while (irq_counter[gpio] < fiq_count) { - if (gpio != AMS_DELTA_GPIO_PIN_KEYBRD_CLK) { - struct irq_data *d = irq_get_irq_data(irq_num); + if (irq_counter[gpio] < fiq_count && + gpio != AMS_DELTA_GPIO_PIN_KEYBRD_CLK) { + struct irq_data *d = irq_get_irq_data(irq_num);
- /* - * It looks like handle_edge_irq() that - * OMAP GPIO edge interrupts default to, - * expects interrupt already unmasked. - */ - if (irq_chip && irq_chip->irq_unmask) + /* + * handle_simple_irq() that OMAP GPIO edge + * interrupts default to since commit 80ac93c27441 + * requires interrupt already acked and unmasked. + */ + if (irq_chip) { + if (irq_chip->irq_ack) + irq_chip->irq_ack(d); + if (irq_chip->irq_unmask) irq_chip->irq_unmask(d); } - generic_handle_irq(irq_num); - - irq_counter[gpio]++; } + for (; irq_counter[gpio] < fiq_count; irq_counter[gpio]++) + generic_handle_irq(irq_num); } return IRQ_HANDLED; }
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Graeme Smecher gsmecher@threespeedlogic.com
[ Upstream commit 647efef69de483f1dd7944ede31b4cae16acb124 ]
The missing "compatible" entries are needed by drivers/clk/ti/clkctrl.c, and without them the structures initialized in drivers/clk/ti/clk-814x.c are not passed to configuration code. The result is a "not found from clkctrl data" error message, although boot proceeds anyway.
The reason why the compatible is not found is because the board specific files override the SoC compatible without including it. This did not cause any issues until with the clkctrl nodes got introduced.
Very lightly tested on a (lurching) AM3874 design that's in the middle of a kernel upgrade from TI's abandoned 2.6.37 tree.
Also tested on j5eco-evm and hp-t410 to verify the clkctrl clocks are found.
Fixes: bb30465b5902 ("ARM: dts: dm814x: add clkctrl nodes") Fixes: 80a06c0d8357 ("ARM: dts: dm816x: add clkctrl nodes") Signed-off-by: Graeme Smecher gsmecher@threespeedlogic.com [tony: updated to fix for 8168-evm, updated comments] Signed-off-by: Tony Lindgren tony@atomide.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/arm/boot/dts/dm8148-evm.dts | 2 +- arch/arm/boot/dts/dm8148-t410.dts | 2 +- arch/arm/boot/dts/dm8168-evm.dts | 2 +- arch/arm/boot/dts/dra62x-j5eco-evm.dts | 2 +- 4 files changed, 4 insertions(+), 4 deletions(-)
--- a/arch/arm/boot/dts/dm8148-evm.dts +++ b/arch/arm/boot/dts/dm8148-evm.dts @@ -10,7 +10,7 @@
/ { model = "DM8148 EVM"; - compatible = "ti,dm8148-evm", "ti,dm8148"; + compatible = "ti,dm8148-evm", "ti,dm8148", "ti,dm814";
memory@80000000 { device_type = "memory"; --- a/arch/arm/boot/dts/dm8148-t410.dts +++ b/arch/arm/boot/dts/dm8148-t410.dts @@ -9,7 +9,7 @@
/ { model = "HP t410 Smart Zero Client"; - compatible = "hp,t410", "ti,dm8148"; + compatible = "hp,t410", "ti,dm8148", "ti,dm814";
memory@80000000 { device_type = "memory"; --- a/arch/arm/boot/dts/dm8168-evm.dts +++ b/arch/arm/boot/dts/dm8168-evm.dts @@ -10,7 +10,7 @@
/ { model = "DM8168 EVM"; - compatible = "ti,dm8168-evm", "ti,dm8168"; + compatible = "ti,dm8168-evm", "ti,dm8168", "ti,dm816";
memory@80000000 { device_type = "memory"; --- a/arch/arm/boot/dts/dra62x-j5eco-evm.dts +++ b/arch/arm/boot/dts/dra62x-j5eco-evm.dts @@ -10,7 +10,7 @@
/ { model = "DRA62x J5 Eco EVM"; - compatible = "ti,dra62x-j5eco-evm", "ti,dra62x", "ti,dm8148"; + compatible = "ti,dra62x-j5eco-evm", "ti,dra62x", "ti,dm8148", "ti,dm814";
memory@80000000 { device_type = "memory";
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Heikki Krogerus heikki.krogerus@linux.intel.com
[ Upstream commit 1a2f474d328f292ee706414824ec4ca690cdf5ba ]
If the I2C adapter that the PD controller is attached to does not support SMBus protocol, the driver needs to handle block reads separately. The first byte returned in block read protocol will show the total number of bytes. It needs to be stripped away.
This is handled separately in the driver only because right now we have no way of requesting the used protocol with regmap-i2c. This is in practice a workaround for what is really a problem in regmap-i2c. The other option would have been to register custom regmap, or not use regmap at all, however, since the solution is very simple, I choose to use it in this case for convenience. It is easy to remove once we figure out how to handle this kind of cases in regmap-i2c.
Fixes: 0a4c005bd171 ("usb: typec: driver for TI TPS6598x USB Power Delivery controllers") Reviewed-by: Guenter Roeck linux@roeck-us.net Signed-off-by: Heikki Krogerus heikki.krogerus@linux.intel.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/usb/typec/tps6598x.c | 47 +++++++++++++++++++++++++++++++++++-------- 1 file changed, 39 insertions(+), 8 deletions(-)
--- a/drivers/usb/typec/tps6598x.c +++ b/drivers/usb/typec/tps6598x.c @@ -73,6 +73,7 @@ struct tps6598x { struct device *dev; struct regmap *regmap; struct mutex lock; /* device lock */ + u8 i2c_protocol:1;
struct typec_port *port; struct typec_partner *partner; @@ -80,19 +81,39 @@ struct tps6598x { struct typec_capability typec_cap; };
+static int +tps6598x_block_read(struct tps6598x *tps, u8 reg, void *val, size_t len) +{ + u8 data[len + 1]; + int ret; + + if (!tps->i2c_protocol) + return regmap_raw_read(tps->regmap, reg, val, len); + + ret = regmap_raw_read(tps->regmap, reg, data, sizeof(data)); + if (ret) + return ret; + + if (data[0] < len) + return -EIO; + + memcpy(val, &data[1], len); + return 0; +} + static inline int tps6598x_read16(struct tps6598x *tps, u8 reg, u16 *val) { - return regmap_raw_read(tps->regmap, reg, val, sizeof(u16)); + return tps6598x_block_read(tps, reg, val, sizeof(u16)); }
static inline int tps6598x_read32(struct tps6598x *tps, u8 reg, u32 *val) { - return regmap_raw_read(tps->regmap, reg, val, sizeof(u32)); + return tps6598x_block_read(tps, reg, val, sizeof(u32)); }
static inline int tps6598x_read64(struct tps6598x *tps, u8 reg, u64 *val) { - return regmap_raw_read(tps->regmap, reg, val, sizeof(u64)); + return tps6598x_block_read(tps, reg, val, sizeof(u64)); }
static inline int tps6598x_write16(struct tps6598x *tps, u8 reg, u16 val) @@ -121,8 +142,8 @@ static int tps6598x_read_partner_identit struct tps6598x_rx_identity_reg id; int ret;
- ret = regmap_raw_read(tps->regmap, TPS_REG_RX_IDENTITY_SOP, - &id, sizeof(id)); + ret = tps6598x_block_read(tps, TPS_REG_RX_IDENTITY_SOP, + &id, sizeof(id)); if (ret) return ret;
@@ -223,13 +244,13 @@ static int tps6598x_exec_cmd(struct tps6 } while (val);
if (out_len) { - ret = regmap_raw_read(tps->regmap, TPS_REG_DATA1, - out_data, out_len); + ret = tps6598x_block_read(tps, TPS_REG_DATA1, + out_data, out_len); if (ret) return ret; val = out_data[0]; } else { - ret = regmap_read(tps->regmap, TPS_REG_DATA1, &val); + ret = tps6598x_block_read(tps, TPS_REG_DATA1, &val, sizeof(u8)); if (ret) return ret; } @@ -384,6 +405,16 @@ static int tps6598x_probe(struct i2c_cli if (!vid) return -ENODEV;
+ /* + * Checking can the adapter handle SMBus protocol. If it can not, the + * driver needs to take care of block reads separately. + * + * FIXME: Testing with I2C_FUNC_I2C. regmap-i2c uses I2C protocol + * unconditionally if the adapter has I2C_FUNC_I2C set. + */ + if (i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) + tps->i2c_protocol = true; + ret = tps6598x_read32(tps, TPS_REG_STATUS, &status); if (ret < 0) return ret;
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Stefan Raspl stefan.raspl@linux.ibm.com
[ Upstream commit bda27ff5c4526f80a7620a94ecfe8dca153e3696 ]
The sendpage() call grabs the sock lock before calling the default implementation - which tries to grab it once again.
Signed-off-by: Stefan Raspl raspl@linux.ibm.com Signed-off-by: Ursula Braun ubraun@linux.ibm.com< Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- net/smc/af_smc.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-)
--- a/net/smc/af_smc.c +++ b/net/smc/af_smc.c @@ -1313,8 +1313,11 @@ static ssize_t smc_sendpage(struct socke
smc = smc_sk(sk); lock_sock(sk); - if (sk->sk_state != SMC_ACTIVE) + if (sk->sk_state != SMC_ACTIVE) { + release_sock(sk); goto out; + } + release_sock(sk); if (smc->use_fallback) rc = kernel_sendpage(smc->clcsock, page, offset, size, flags); @@ -1322,7 +1325,6 @@ static ssize_t smc_sendpage(struct socke rc = sock_no_sendpage(sock, page, offset, size, flags);
out: - release_sock(sk); return rc; }
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: "Michael J. Ruhl" michael.j.ruhl@intel.com
[ Upstream commit 5da9e742be44d9b7c68b1bf6e1aaf46a1aa7a52b ]
The module parameter num_user_context is defined as 'int' and defaults to -1. The module_param_named() says that it is uint.
Correct module_param_named() type information and update the modinfo text to reflect the default value.
Reviewed-by: Dennis Dalessandro dennis.dalessandro@intel.com Signed-off-by: Michael J. Ruhl michael.j.ruhl@intel.com Signed-off-by: Dennis Dalessandro dennis.dalessandro@intel.com Signed-off-by: Doug Ledford dledford@redhat.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/infiniband/hw/hfi1/init.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
--- a/drivers/infiniband/hw/hfi1/init.c +++ b/drivers/infiniband/hw/hfi1/init.c @@ -88,9 +88,9 @@ * pio buffers per ctxt, etc.) Zero means use one user context per CPU. */ int num_user_contexts = -1; -module_param_named(num_user_contexts, num_user_contexts, uint, S_IRUGO); +module_param_named(num_user_contexts, num_user_contexts, int, 0444); MODULE_PARM_DESC( - num_user_contexts, "Set max number of user contexts to use"); + num_user_contexts, "Set max number of user contexts to use (default: -1 will use the real (non-HT) CPU count)");
uint krcvqs[RXE_NUM_DATA_VL]; int krcvqsset;
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Sebastian Sanchez sebastian.sanchez@intel.com
[ Upstream commit e9777ad4399c26c70318c4945f94efac2ed95391 ]
When allocating device data, if there's an allocation failure, the already allocated memory won't be freed such as per-cpu counters.
Fix memory leaks in exception path by creating a common reentrant clean up function hfi1_clean_devdata() to be used at driver unload time and device data allocation failure.
To accomplish this, free_platform_config() and clean_up_i2c() are changed to be reentrant to remove dependencies when they are called in different order. This helps avoid NULL pointer dereferences introduced by this patch if those two functions weren't reentrant.
In addition, set dd->int_counter, dd->rcv_limit, dd->send_schedule and dd->tx_opstats to NULL after they're freed in hfi1_clean_devdata(), so that hfi1_clean_devdata() is fully reentrant.
Reviewed-by: Mike Marciniszyn mike.marciniszyn@intel.com Reviewed-by: Michael J. Ruhl michael.j.ruhl@intel.com Signed-off-by: Sebastian Sanchez sebastian.sanchez@intel.com Signed-off-by: Dennis Dalessandro dennis.dalessandro@intel.com Signed-off-by: Doug Ledford dledford@redhat.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/infiniband/hw/hfi1/init.c | 37 ++++++++++++++++++++++++---------- drivers/infiniband/hw/hfi1/platform.c | 1 drivers/infiniband/hw/hfi1/qsfp.c | 2 + 3 files changed, 30 insertions(+), 10 deletions(-)
--- a/drivers/infiniband/hw/hfi1/init.c +++ b/drivers/infiniband/hw/hfi1/init.c @@ -1209,30 +1209,49 @@ static void finalize_asic_data(struct hf kfree(ad); }
-static void __hfi1_free_devdata(struct kobject *kobj) +/** + * hfi1_clean_devdata - cleans up per-unit data structure + * @dd: pointer to a valid devdata structure + * + * It cleans up all data structures set up by + * by hfi1_alloc_devdata(). + */ +static void hfi1_clean_devdata(struct hfi1_devdata *dd) { - struct hfi1_devdata *dd = - container_of(kobj, struct hfi1_devdata, kobj); struct hfi1_asic_data *ad; unsigned long flags;
spin_lock_irqsave(&hfi1_devs_lock, flags); - idr_remove(&hfi1_unit_table, dd->unit); - list_del(&dd->list); + if (!list_empty(&dd->list)) { + idr_remove(&hfi1_unit_table, dd->unit); + list_del_init(&dd->list); + } ad = release_asic_data(dd); spin_unlock_irqrestore(&hfi1_devs_lock, flags); - if (ad) - finalize_asic_data(dd, ad); + + finalize_asic_data(dd, ad); free_platform_config(dd); rcu_barrier(); /* wait for rcu callbacks to complete */ free_percpu(dd->int_counter); free_percpu(dd->rcv_limit); free_percpu(dd->send_schedule); free_percpu(dd->tx_opstats); + dd->int_counter = NULL; + dd->rcv_limit = NULL; + dd->send_schedule = NULL; + dd->tx_opstats = NULL; sdma_clean(dd, dd->num_sdma); rvt_dealloc_device(&dd->verbs_dev.rdi); }
+static void __hfi1_free_devdata(struct kobject *kobj) +{ + struct hfi1_devdata *dd = + container_of(kobj, struct hfi1_devdata, kobj); + + hfi1_clean_devdata(dd); +} + static struct kobj_type hfi1_devdata_type = { .release = __hfi1_free_devdata, }; @@ -1333,9 +1352,7 @@ struct hfi1_devdata *hfi1_alloc_devdata( return dd;
bail: - if (!list_empty(&dd->list)) - list_del_init(&dd->list); - rvt_dealloc_device(&dd->verbs_dev.rdi); + hfi1_clean_devdata(dd); return ERR_PTR(ret); }
--- a/drivers/infiniband/hw/hfi1/platform.c +++ b/drivers/infiniband/hw/hfi1/platform.c @@ -199,6 +199,7 @@ void free_platform_config(struct hfi1_de { /* Release memory allocated for eprom or fallback file read. */ kfree(dd->platform_config.data); + dd->platform_config.data = NULL; }
void get_port_type(struct hfi1_pportdata *ppd) --- a/drivers/infiniband/hw/hfi1/qsfp.c +++ b/drivers/infiniband/hw/hfi1/qsfp.c @@ -204,6 +204,8 @@ static void clean_i2c_bus(struct hfi1_i2
void clean_up_i2c(struct hfi1_devdata *dd, struct hfi1_asic_data *ad) { + if (!ad) + return; clean_i2c_bus(ad->i2c_bus0); ad->i2c_bus0 = NULL; clean_i2c_bus(ad->i2c_bus1);
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Sebastian Sanchez sebastian.sanchez@intel.com
[ Upstream commit 59482a14918b282ca2a98f38c69da5ebeb1107d2 ]
When IRQ affinity is set and the interrupt type is unknown, a cpu mask allocated within the function is never freed. Fix this memory leak by allocating memory within the scope where it is used.
Reviewed-by: Mike Marciniszyn mike.marciniszyn@intel.com Reviewed-by: Michael J. Ruhl michael.j.ruhl@intel.com Signed-off-by: Sebastian Sanchez sebastian.sanchez@intel.com Signed-off-by: Dennis Dalessandro dennis.dalessandro@intel.com Signed-off-by: Doug Ledford dledford@redhat.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/infiniband/hw/hfi1/affinity.c | 11 +++++------ 1 file changed, 5 insertions(+), 6 deletions(-)
--- a/drivers/infiniband/hw/hfi1/affinity.c +++ b/drivers/infiniband/hw/hfi1/affinity.c @@ -412,7 +412,6 @@ static void hfi1_cleanup_sdma_notifier(s static int get_irq_affinity(struct hfi1_devdata *dd, struct hfi1_msix_entry *msix) { - int ret; cpumask_var_t diff; struct hfi1_affinity_node *entry; struct cpu_mask_set *set = NULL; @@ -424,10 +423,6 @@ static int get_irq_affinity(struct hfi1_ extra[0] = '\0'; cpumask_clear(&msix->mask);
- ret = zalloc_cpumask_var(&diff, GFP_KERNEL); - if (!ret) - return -ENOMEM; - entry = node_affinity_lookup(dd->node);
switch (msix->type) { @@ -458,6 +453,9 @@ static int get_irq_affinity(struct hfi1_ * finds its CPU here. */ if (cpu == -1 && set) { + if (!zalloc_cpumask_var(&diff, GFP_KERNEL)) + return -ENOMEM; + if (cpumask_equal(&set->mask, &set->used)) { /* * We've used up all the CPUs, bump up the generation @@ -469,6 +467,8 @@ static int get_irq_affinity(struct hfi1_ cpumask_andnot(diff, &set->mask, &set->used); cpu = cpumask_first(diff); cpumask_set_cpu(cpu, &set->used); + + free_cpumask_var(diff); }
cpumask_set_cpu(cpu, &msix->mask); @@ -482,7 +482,6 @@ static int get_irq_affinity(struct hfi1_ hfi1_setup_sdma_notifier(msix); }
- free_cpumask_var(diff); return 0; }
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Jack Morgenstein jackm@dev.mellanox.co.il
[ Upstream commit b03bcde962606d2ee59a4e9dd470db9ad53c5418 ]
When the kernel was compiled using the UBSAN option, we saw the following stack trace:
[ 1184.827917] UBSAN: Undefined behaviour in drivers/infiniband/hw/mlx4/mr.c:349:27 [ 1184.828114] signed integer overflow: [ 1184.828247] -2147483648 - 1 cannot be represented in type 'int'
The problem was caused by calling round_up in procedure mlx4_ib_umem_calc_optimal_mtt_size (on line 349, as noted in the stack trace) with the second parameter (1 << block_shift) (which is an int). The second parameter should have been (1ULL << block_shift) (which is an unsigned long long).
(1 << block_shift) is treated by the compiler as an int (because 1 is an integer).
Now, local variable block_shift is initialized to 31. If block_shift is 31, 1 << block_shift is 1 << 31 = 0x80000000=-214748368. This is the most negative int value.
Inside the round_up macro, there is a cast applied to ((1 << 31) - 1). However, this cast is applied AFTER ((1 << 31) - 1) is calculated. Since (1 << 31) is treated as an int, we get the negative overflow identified by UBSAN in the process of calculating ((1 << 31) - 1).
The fix is to change (1 << block_shift) to (1ULL << block_shift) on line 349.
Fixes: 9901abf58368 ("IB/mlx4: Use optimal numbers of MTT entries") Signed-off-by: Jack Morgenstein jackm@dev.mellanox.co.il Signed-off-by: Leon Romanovsky leonro@mellanox.com Signed-off-by: Doug Ledford dledford@redhat.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/infiniband/hw/mlx4/mr.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/infiniband/hw/mlx4/mr.c +++ b/drivers/infiniband/hw/mlx4/mr.c @@ -346,7 +346,7 @@ int mlx4_ib_umem_calc_optimal_mtt_size(s /* Add to the first block the misalignment that it suffers from. */ total_len += (first_block_start & ((1ULL << block_shift) - 1ULL)); last_block_end = current_block_start + current_block_len; - last_block_aligned_end = round_up(last_block_end, 1 << block_shift); + last_block_aligned_end = round_up(last_block_end, 1ULL << block_shift); total_len += (last_block_aligned_end - last_block_end);
if (total_len & ((1ULL << block_shift) - 1ULL))
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Parav Pandit parav@mellanox.com
[ Upstream commit 9aa169213d1166d30ae357a44abbeae93459339d ]
When commit [1] was added, SGID was queried to derive the SMAC address. Then, later on during a refactor [2], SMAC was no longer needed. However, the now useless GID query remained. Then during additional code changes later on, the GID query was being done in such a way that it caused iWARP queries to start breaking. Remove the useless GID query and resolve the iWARP breakage at the same time.
This is discussed in [3].
[1] commit dd5f03beb4f7 ("IB/core: Ethernet L2 attributes in verbs/cm structures") [2] commit 5c266b2304fb ("IB/cm: Remove the usage of smac and vid of qp_attr and cm_av") [3] https://www.spinics.net/lists/linux-rdma/msg63951.html
Suggested-by: Shiraz Saleem shiraz.saleem@intel.com Signed-off-by: Parav Pandit parav@mellanox.com Signed-off-by: Leon Romanovsky leonro@mellanox.com Signed-off-by: Doug Ledford dledford@redhat.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/infiniband/core/cma.c | 7 ------- 1 file changed, 7 deletions(-)
--- a/drivers/infiniband/core/cma.c +++ b/drivers/infiniband/core/cma.c @@ -901,7 +901,6 @@ static int cma_modify_qp_rtr(struct rdma { struct ib_qp_attr qp_attr; int qp_attr_mask, ret; - union ib_gid sgid;
mutex_lock(&id_priv->qp_mutex); if (!id_priv->id.qp) { @@ -924,12 +923,6 @@ static int cma_modify_qp_rtr(struct rdma if (ret) goto out;
- ret = ib_query_gid(id_priv->id.device, id_priv->id.port_num, - rdma_ah_read_grh(&qp_attr.ah_attr)->sgid_index, - &sgid, NULL); - if (ret) - goto out; - BUG_ON(id_priv->cma_dev->device != id_priv->id.device);
if (conn_param)
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Rob Herring robh@kernel.org
[ Upstream commit bc519d9574618e47a0c788000fb78da95e18d953 ]
The BCM2835 AUX SPI has a shared interrupt line (with AUX UART). Downstream fixes this with an AUX irqchip to demux the IRQ sources and a DT change which breaks compatibility with older kernels. The AUX irqchip was already rejected for upstream[1] and the DT change would break working systems if the DTB is updated to a newer one. The latter issue was brought to my attention by Alex Graf.
The root cause however is a bug in the shared handler. Shared handlers must check that interrupts are actually enabled before servicing the interrupt. Add a check that the TXEMPTY or IDLE interrupts are enabled.
[1] https://patchwork.kernel.org/patch/9781221/
Cc: Alexander Graf agraf@suse.de Cc: Marc Zyngier marc.zyngier@arm.com Cc: Mark Brown broonie@kernel.org Cc: Eric Anholt eric@anholt.net Cc: Stefan Wahren stefan.wahren@i2se.com Cc: Florian Fainelli f.fainelli@gmail.com Cc: Ray Jui rjui@broadcom.com Cc: Scott Branden sbranden@broadcom.com Cc: bcm-kernel-feedback-list@broadcom.com Cc: linux-spi@vger.kernel.org Cc: linux-rpi-kernel@lists.infradead.org Cc: linux-arm-kernel@lists.infradead.org Signed-off-by: Rob Herring robh@kernel.org Reviewed-by: Eric Anholt eric@anholt.net Signed-off-by: Mark Brown broonie@kernel.org Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/spi/spi-bcm2835aux.c | 5 +++++ 1 file changed, 5 insertions(+)
--- a/drivers/spi/spi-bcm2835aux.c +++ b/drivers/spi/spi-bcm2835aux.c @@ -184,6 +184,11 @@ static irqreturn_t bcm2835aux_spi_interr struct bcm2835aux_spi *bs = spi_master_get_devdata(master); irqreturn_t ret = IRQ_NONE;
+ /* IRQ may be shared, so return if our interrupts are disabled */ + if (!(bcm2835aux_rd(bs, BCM2835_AUX_SPI_CNTL1) & + (BCM2835_AUX_SPI_CNTL1_TXEMPTY | BCM2835_AUX_SPI_CNTL1_IDLE))) + return ret; + /* check if we have data to read */ while (bs->rx_len && (!(bcm2835aux_rd(bs, BCM2835_AUX_SPI_STAT) &
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Mark Rutland mark.rutland@arm.com
[ Upstream commit 9ef09e35e521bf0df5325cc9cffa726a8f5f3c1b ]
It's possible for userspace to control attr->map_type. Sanitize it when using it as an array index to prevent an out-of-bounds value being used under speculation.
Found by smatch.
Signed-off-by: Mark Rutland mark.rutland@arm.com Cc: Alexei Starovoitov ast@kernel.org Cc: Dan Carpenter dan.carpenter@oracle.com Cc: Daniel Borkmann daniel@iogearbox.net Cc: Peter Zijlstra peterz@infradead.org Cc: netdev@vger.kernel.org Acked-by: David S. Miller davem@davemloft.net Signed-off-by: Daniel Borkmann daniel@iogearbox.net Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- kernel/bpf/syscall.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-)
--- a/kernel/bpf/syscall.c +++ b/kernel/bpf/syscall.c @@ -26,6 +26,7 @@ #include <linux/cred.h> #include <linux/timekeeping.h> #include <linux/ctype.h> +#include <linux/nospec.h>
#define IS_FD_ARRAY(map) ((map)->map_type == BPF_MAP_TYPE_PROG_ARRAY || \ (map)->map_type == BPF_MAP_TYPE_PERF_EVENT_ARRAY || \ @@ -102,12 +103,14 @@ const struct bpf_map_ops bpf_map_offload static struct bpf_map *find_and_alloc_map(union bpf_attr *attr) { const struct bpf_map_ops *ops; + u32 type = attr->map_type; struct bpf_map *map; int err;
- if (attr->map_type >= ARRAY_SIZE(bpf_map_types)) + if (type >= ARRAY_SIZE(bpf_map_types)) return ERR_PTR(-EINVAL); - ops = bpf_map_types[attr->map_type]; + type = array_index_nospec(type, ARRAY_SIZE(bpf_map_types)); + ops = bpf_map_types[type]; if (!ops) return ERR_PTR(-EINVAL);
@@ -122,7 +125,7 @@ static struct bpf_map *find_and_alloc_ma if (IS_ERR(map)) return map; map->ops = ops; - map->map_type = attr->map_type; + map->map_type = type; return map; }
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Andrzej Hajda a.hajda@samsung.com
[ Upstream commit 2eced8e917b060587fc8ed46df41c364957a5050 ]
In case of interlace mode video processor registers and mixer config register must be check to ensure internal state is in sync with shadow registers. This patch fixes page-faults in interlaced mode.
Signed-off-by: Andrzej Hajda a.hajda@samsung.com Signed-off-by: Inki Dae inki.dae@samsung.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/gpu/drm/exynos/exynos_mixer.c | 10 ++++++++++ drivers/gpu/drm/exynos/regs-mixer.h | 1 + 2 files changed, 11 insertions(+)
--- a/drivers/gpu/drm/exynos/exynos_mixer.c +++ b/drivers/gpu/drm/exynos/exynos_mixer.c @@ -494,6 +494,7 @@ static void vp_video_buffer(struct mixer
spin_lock_irqsave(&ctx->reg_slock, flags);
+ vp_reg_write(ctx, VP_SHADOW_UPDATE, 1); /* interlace or progressive scan mode */ val = (test_bit(MXR_BIT_INTERLACE, &ctx->flags) ? ~0 : 0); vp_reg_writemask(ctx, VP_MODE, val, VP_MODE_LINE_SKIP); @@ -711,6 +712,15 @@ static irqreturn_t mixer_irq_handler(int
/* interlace scan need to check shadow register */ if (test_bit(MXR_BIT_INTERLACE, &ctx->flags)) { + if (test_bit(MXR_BIT_VP_ENABLED, &ctx->flags) && + vp_reg_read(ctx, VP_SHADOW_UPDATE)) + goto out; + + base = mixer_reg_read(ctx, MXR_CFG); + shadow = mixer_reg_read(ctx, MXR_CFG_S); + if (base != shadow) + goto out; + base = mixer_reg_read(ctx, MXR_GRAPHIC_BASE(0)); shadow = mixer_reg_read(ctx, MXR_GRAPHIC_BASE_S(0)); if (base != shadow) --- a/drivers/gpu/drm/exynos/regs-mixer.h +++ b/drivers/gpu/drm/exynos/regs-mixer.h @@ -47,6 +47,7 @@ #define MXR_MO 0x0304 #define MXR_RESOLUTION 0x0310
+#define MXR_CFG_S 0x2004 #define MXR_GRAPHIC0_BASE_S 0x2024 #define MXR_GRAPHIC1_BASE_S 0x2044
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Tobias Jakobi tjakobi@math.uni-bielefeld.de
[ Upstream commit 0ccc1c8f0282e237a0bd6dca7cdac4ed5e318ee7 ]
If an interlaced video mode is selected, a IOMMU pagefault is triggered by vp_video_buffer().
Fix the most apparent bugs: - pitch value for chroma plane - divide by two of height and vpos of source and destination
Signed-off-by: Tobias Jakobi tjakobi@math.uni-bielefeld.de [ a.hajda: Halved also destination height and vpos, updated commit message ] Signed-off-by: Andrzej Hajda a.hajda@samsung.com Signed-off-by: Inki Dae inki.dae@samsung.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/gpu/drm/exynos/exynos_mixer.c | 12 +++++++----- 1 file changed, 7 insertions(+), 5 deletions(-)
--- a/drivers/gpu/drm/exynos/exynos_mixer.c +++ b/drivers/gpu/drm/exynos/exynos_mixer.c @@ -485,7 +485,7 @@ static void vp_video_buffer(struct mixer chroma_addr[1] = chroma_addr[0] + 0x40; } else { luma_addr[1] = luma_addr[0] + fb->pitches[0]; - chroma_addr[1] = chroma_addr[0] + fb->pitches[0]; + chroma_addr[1] = chroma_addr[0] + fb->pitches[1]; } } else { luma_addr[1] = 0; @@ -508,21 +508,23 @@ static void vp_video_buffer(struct mixer vp_reg_write(ctx, VP_IMG_SIZE_Y, VP_IMG_HSIZE(fb->pitches[0]) | VP_IMG_VSIZE(fb->height)); /* chroma plane for NV12/NV21 is half the height of the luma plane */ - vp_reg_write(ctx, VP_IMG_SIZE_C, VP_IMG_HSIZE(fb->pitches[0]) | + vp_reg_write(ctx, VP_IMG_SIZE_C, VP_IMG_HSIZE(fb->pitches[1]) | VP_IMG_VSIZE(fb->height / 2));
vp_reg_write(ctx, VP_SRC_WIDTH, state->src.w); - vp_reg_write(ctx, VP_SRC_HEIGHT, state->src.h); vp_reg_write(ctx, VP_SRC_H_POSITION, VP_SRC_H_POSITION_VAL(state->src.x)); - vp_reg_write(ctx, VP_SRC_V_POSITION, state->src.y); - vp_reg_write(ctx, VP_DST_WIDTH, state->crtc.w); vp_reg_write(ctx, VP_DST_H_POSITION, state->crtc.x); + if (test_bit(MXR_BIT_INTERLACE, &ctx->flags)) { + vp_reg_write(ctx, VP_SRC_HEIGHT, state->src.h / 2); + vp_reg_write(ctx, VP_SRC_V_POSITION, state->src.y / 2); vp_reg_write(ctx, VP_DST_HEIGHT, state->crtc.h / 2); vp_reg_write(ctx, VP_DST_V_POSITION, state->crtc.y / 2); } else { + vp_reg_write(ctx, VP_SRC_HEIGHT, state->src.h); + vp_reg_write(ctx, VP_SRC_V_POSITION, state->src.y); vp_reg_write(ctx, VP_DST_HEIGHT, state->crtc.h); vp_reg_write(ctx, VP_DST_V_POSITION, state->crtc.y); }
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Daniel Borkmann daniel@iogearbox.net
[ Upstream commit d0f1a451e33d9ca834422622da30aa68daade56b ]
Commit 9ef09e35e521 ("bpf: fix possible spectre-v1 in find_and_alloc_map()") converted find_and_alloc_map() over to use array_index_nospec() to sanitize map type that user space passes on map creation, and this patch does an analogous conversion for progs in find_prog_type() as it's also passed from user space when loading progs as attr->prog_type.
Signed-off-by: Daniel Borkmann daniel@iogearbox.net Cc: Mark Rutland mark.rutland@arm.com Signed-off-by: Alexei Starovoitov ast@kernel.org Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- kernel/bpf/syscall.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-)
--- a/kernel/bpf/syscall.c +++ b/kernel/bpf/syscall.c @@ -872,11 +872,17 @@ static const struct bpf_prog_ops * const
static int find_prog_type(enum bpf_prog_type type, struct bpf_prog *prog) { - if (type >= ARRAY_SIZE(bpf_prog_types) || !bpf_prog_types[type]) + const struct bpf_prog_ops *ops; + + if (type >= ARRAY_SIZE(bpf_prog_types)) + return -EINVAL; + type = array_index_nospec(type, ARRAY_SIZE(bpf_prog_types)); + ops = bpf_prog_types[type]; + if (!ops) return -EINVAL;
if (!bpf_prog_is_dev_bound(prog->aux)) - prog->aux->ops = bpf_prog_types[type]; + prog->aux->ops = ops; else prog->aux->ops = &bpf_offload_prog_ops; prog->type = type;
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Peter Zijlstra peterz@infradead.org
[ Upstream commit b5bf9a90bbebffba888c9144c5a8a10317b04064 ]
Gaurav reported a perceived problem with TASK_PARKED, which turned out to be a broken wait-loop pattern in __kthread_parkme(), but the reported issue can (and does) in fact happen for states that do not do condition based sleeps.
When the 'current->state = TASK_RUNNING' store of a previous (concurrent) try_to_wake_up() collides with the setting of a 'special' sleep state, we can loose the sleep state.
Normal condition based wait-loops are immune to this problem, but for sleep states that are not condition based are subject to this problem.
There already is a fix for TASK_DEAD. Abstract that and also apply it to TASK_STOPPED and TASK_TRACED, both of which are also without condition based wait-loop.
Reported-by: Gaurav Kohli gkohli@codeaurora.org Signed-off-by: Peter Zijlstra (Intel) peterz@infradead.org Reviewed-by: Oleg Nesterov oleg@redhat.com Cc: Linus Torvalds torvalds@linux-foundation.org Cc: Peter Zijlstra peterz@infradead.org Cc: Thomas Gleixner tglx@linutronix.de Signed-off-by: Ingo Molnar mingo@kernel.org Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- include/linux/sched.h | 50 ++++++++++++++++++++++++++++++++++++++----- include/linux/sched/signal.h | 2 - kernel/sched/core.c | 17 -------------- kernel/signal.c | 17 ++++++++++++-- 4 files changed, 62 insertions(+), 24 deletions(-)
--- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -113,17 +113,36 @@ struct task_group;
#ifdef CONFIG_DEBUG_ATOMIC_SLEEP
+/* + * Special states are those that do not use the normal wait-loop pattern. See + * the comment with set_special_state(). + */ +#define is_special_task_state(state) \ + ((state) & (__TASK_STOPPED | __TASK_TRACED | TASK_DEAD)) + #define __set_current_state(state_value) \ do { \ + WARN_ON_ONCE(is_special_task_state(state_value));\ current->task_state_change = _THIS_IP_; \ current->state = (state_value); \ } while (0) + #define set_current_state(state_value) \ do { \ + WARN_ON_ONCE(is_special_task_state(state_value));\ current->task_state_change = _THIS_IP_; \ smp_store_mb(current->state, (state_value)); \ } while (0)
+#define set_special_state(state_value) \ + do { \ + unsigned long flags; /* may shadow */ \ + WARN_ON_ONCE(!is_special_task_state(state_value)); \ + raw_spin_lock_irqsave(¤t->pi_lock, flags); \ + current->task_state_change = _THIS_IP_; \ + current->state = (state_value); \ + raw_spin_unlock_irqrestore(¤t->pi_lock, flags); \ + } while (0) #else /* * set_current_state() includes a barrier so that the write of current->state @@ -145,8 +164,8 @@ struct task_group; * * The above is typically ordered against the wakeup, which does: * - * need_sleep = false; - * wake_up_state(p, TASK_UNINTERRUPTIBLE); + * need_sleep = false; + * wake_up_state(p, TASK_UNINTERRUPTIBLE); * * Where wake_up_state() (and all other wakeup primitives) imply enough * barriers to order the store of the variable against wakeup. @@ -155,12 +174,33 @@ struct task_group; * once it observes the TASK_UNINTERRUPTIBLE store the waking CPU can issue a * TASK_RUNNING store which can collide with __set_current_state(TASK_RUNNING). * - * This is obviously fine, since they both store the exact same value. + * However, with slightly different timing the wakeup TASK_RUNNING store can + * also collide with the TASK_UNINTERRUPTIBLE store. Loosing that store is not + * a problem either because that will result in one extra go around the loop + * and our @cond test will save the day. * * Also see the comments of try_to_wake_up(). */ -#define __set_current_state(state_value) do { current->state = (state_value); } while (0) -#define set_current_state(state_value) smp_store_mb(current->state, (state_value)) +#define __set_current_state(state_value) \ + current->state = (state_value) + +#define set_current_state(state_value) \ + smp_store_mb(current->state, (state_value)) + +/* + * set_special_state() should be used for those states when the blocking task + * can not use the regular condition based wait-loop. In that case we must + * serialize against wakeups such that any possible in-flight TASK_RUNNING stores + * will not collide with our state change. + */ +#define set_special_state(state_value) \ + do { \ + unsigned long flags; /* may shadow */ \ + raw_spin_lock_irqsave(¤t->pi_lock, flags); \ + current->state = (state_value); \ + raw_spin_unlock_irqrestore(¤t->pi_lock, flags); \ + } while (0) + #endif
/* Task command name length: */ --- a/include/linux/sched/signal.h +++ b/include/linux/sched/signal.h @@ -280,7 +280,7 @@ static inline void kernel_signal_stop(vo { spin_lock_irq(¤t->sighand->siglock); if (current->jobctl & JOBCTL_STOP_DEQUEUED) - __set_current_state(TASK_STOPPED); + set_special_state(TASK_STOPPED); spin_unlock_irq(¤t->sighand->siglock);
schedule(); --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -3459,23 +3459,8 @@ static void __sched notrace __schedule(b
void __noreturn do_task_dead(void) { - /* - * The setting of TASK_RUNNING by try_to_wake_up() may be delayed - * when the following two conditions become true. - * - There is race condition of mmap_sem (It is acquired by - * exit_mm()), and - * - SMI occurs before setting TASK_RUNINNG. - * (or hypervisor of virtual machine switches to other guest) - * As a result, we may become TASK_RUNNING after becoming TASK_DEAD - * - * To avoid it, we have to wait for releasing tsk->pi_lock which - * is held by try_to_wake_up() - */ - raw_spin_lock_irq(¤t->pi_lock); - raw_spin_unlock_irq(¤t->pi_lock); - /* Causes final put_task_struct in finish_task_switch(): */ - __set_current_state(TASK_DEAD); + set_special_state(TASK_DEAD);
/* Tell freezer to ignore us: */ current->flags |= PF_NOFREEZE; --- a/kernel/signal.c +++ b/kernel/signal.c @@ -1961,14 +1961,27 @@ static void ptrace_stop(int exit_code, i return; }
+ set_special_state(TASK_TRACED); + /* * We're committing to trapping. TRACED should be visible before * TRAPPING is cleared; otherwise, the tracer might fail do_wait(). * Also, transition to TRACED and updates to ->jobctl should be * atomic with respect to siglock and should be done after the arch * hook as siglock is released and regrabbed across it. + * + * TRACER TRACEE + * + * ptrace_attach() + * [L] wait_on_bit(JOBCTL_TRAPPING) [S] set_special_state(TRACED) + * do_wait() + * set_current_state() smp_wmb(); + * ptrace_do_wait() + * wait_task_stopped() + * task_stopped_code() + * [L] task_is_traced() [S] task_clear_jobctl_trapping(); */ - set_current_state(TASK_TRACED); + smp_wmb();
current->last_siginfo = info; current->exit_code = exit_code; @@ -2176,7 +2189,7 @@ static bool do_signal_stop(int signr) if (task_participate_group_stop(current)) notify = CLD_STOPPED;
- __set_current_state(TASK_STOPPED); + set_special_state(TASK_STOPPED); spin_unlock_irq(¤t->sighand->siglock);
/*
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Bhadram Varka vbhadram@nvidia.com
[ Upstream commit 23b8392201e0681b76630c4cea68e1a2e1821ec6 ]
It adds support for BCM89610 (Single-Port 10/100/1000BASE-T) transceiver which is used in P3310 Tegra186 platform.
Signed-off-by: Bhadram Varka vbhadram@nvidia.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/net/phy/broadcom.c | 10 ++++++++++ include/linux/brcmphy.h | 1 + 2 files changed, 11 insertions(+)
--- a/drivers/net/phy/broadcom.c +++ b/drivers/net/phy/broadcom.c @@ -720,6 +720,15 @@ static struct phy_driver broadcom_driver .get_strings = bcm_phy_get_strings, .get_stats = bcm53xx_phy_get_stats, .probe = bcm53xx_phy_probe, +}, { + .phy_id = PHY_ID_BCM89610, + .phy_id_mask = 0xfffffff0, + .name = "Broadcom BCM89610", + .features = PHY_GBIT_FEATURES, + .flags = PHY_HAS_INTERRUPT, + .config_init = bcm54xx_config_init, + .ack_interrupt = bcm_phy_ack_intr, + .config_intr = bcm_phy_config_intr, } };
module_phy_driver(broadcom_drivers); @@ -741,6 +750,7 @@ static struct mdio_device_id __maybe_unu { PHY_ID_BCMAC131, 0xfffffff0 }, { PHY_ID_BCM5241, 0xfffffff0 }, { PHY_ID_BCM5395, 0xfffffff0 }, + { PHY_ID_BCM89610, 0xfffffff0 }, { } };
--- a/include/linux/brcmphy.h +++ b/include/linux/brcmphy.h @@ -25,6 +25,7 @@ #define PHY_ID_BCM54612E 0x03625e60 #define PHY_ID_BCM54616S 0x03625d10 #define PHY_ID_BCM57780 0x03625d90 +#define PHY_ID_BCM89610 0x03625cd0
#define PHY_ID_BCM7250 0xae025280 #define PHY_ID_BCM7260 0xae025190
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Masahiro Yamada yamada.masahiro@socionext.com
[ Upstream commit 642ef99be932c4071274b28eaf3d3d85bbb6e78c ]
Since commit d677a4d60193 ("Makefile: support flag -fsanitizer-coverage=trace-cmp"), you miss to build the SANCOV plugin under some circumstances.
CONFIG_KCOV=y CONFIG_KCOV_ENABLE_COMPARISONS=y Your compiler does not support -fsanitize-coverage=trace-pc Your compiler does not support -fsanitize-coverage=trace-cmp
Under this condition, $(CFLAGS_KCOV) is not empty but contains a space, so the following ifeq-conditional is false.
ifeq ($(CFLAGS_KCOV),)
Then, scripts/Makefile.gcc-plugins misses to add sancov_plugin.so to gcc-plugin-y while the SANCOV plugin is necessary as an alternative means.
Fixes: d677a4d60193 ("Makefile: support flag -fsanitizer-coverage=trace-cmp") Signed-off-by: Masahiro Yamada yamada.masahiro@socionext.com Acked-by: Kees Cook keescook@chromium.org Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- scripts/Makefile.gcc-plugins | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/scripts/Makefile.gcc-plugins +++ b/scripts/Makefile.gcc-plugins @@ -14,7 +14,7 @@ ifdef CONFIG_GCC_PLUGINS endif
ifdef CONFIG_GCC_PLUGIN_SANCOV - ifeq ($(CFLAGS_KCOV),) + ifeq ($(strip $(CFLAGS_KCOV)),) # It is needed because of the gcc-plugin.sh and gcc version checks. gcc-plugin-$(CONFIG_GCC_PLUGIN_SANCOV) += sancov_plugin.so
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Rich Felker dalias@libc.org
[ Upstream commit 6cb465972c4eb6741b3094a58a65e527fc63c100 ]
The sh asm/smp.h defines a fallback hard_smp_processor_id macro for the !SMP case, but linux/smp.h never includes asm/smp.h in the !SMP case.
Signed-off-by: Rich Felker dalias@libc.org Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/sh/kernel/cpu/sh2/probe.c | 4 ++++ 1 file changed, 4 insertions(+)
--- a/arch/sh/kernel/cpu/sh2/probe.c +++ b/arch/sh/kernel/cpu/sh2/probe.c @@ -43,7 +43,11 @@ void __ref cpu_probe(void) #endif
#if defined(CONFIG_CPU_J2) +#if defined(CONFIG_SMP) unsigned cpu = hard_smp_processor_id(); +#else + unsigned cpu = 0; +#endif if (cpu == 0) of_scan_flat_dt(scan_cache, NULL); if (j2_ccr_base) __raw_writel(0x80000303, j2_ccr_base + 4*cpu); if (cpu != 0) return;
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Etienne Carriere etienne.carriere@linaro.org
[ Upstream commit ab9d3db5b320a052452b9cd035599ee3c84bbee9 ]
This change prevents userland from referencing TEE shared memory outside the area initially allocated by its owner. Prior this change an application could not reference or access memory it did not own but it could reference memory not explicitly allocated by owner but still allocated to the owner due to the memory allocation granule.
Reported-by: Alexandre Jutras alexandre.jutras@nxp.com Signed-off-by: Etienne Carriere etienne.carriere@linaro.org Signed-off-by: Jens Wiklander jens.wiklander@linaro.org Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/tee/tee_core.c | 11 +++++++++++ 1 file changed, 11 insertions(+)
--- a/drivers/tee/tee_core.c +++ b/drivers/tee/tee_core.c @@ -238,6 +238,17 @@ static int params_from_user(struct tee_c if (IS_ERR(shm)) return PTR_ERR(shm);
+ /* + * Ensure offset + size does not overflow offset + * and does not overflow the size of the referred + * shared memory object. + */ + if ((ip.a + ip.b) < ip.a || + (ip.a + ip.b) > shm->size) { + tee_shm_put(shm); + return -EINVAL; + } + params[n].u.memref.shm_offs = ip.a; params[n].u.memref.size = ip.b; params[n].u.memref.shm = shm;
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: "Naveen N. Rao" naveen.n.rao@linux.vnet.ibm.com
[ Upstream commit 0b7758aaf6543b9a10c8671db559e9d374a3fd95 ]
On powerpc64 ABIv1, we are enabling syscall tracing for only ~20 syscalls. This is due to commit e145242ea0df6 ("syscalls/core, syscalls/x86: Clean up syscall stub naming convention") which has changed the syscall entry wrapper prefix from "SyS" to "__se_sys".
Update the logic for ABIv1 to not just skip the initial dot, but also the "__se_sys" prefix.
Fixes: commit e145242ea0df6 ("syscalls/core, syscalls/x86: Clean up syscall stub naming convention") Reported-by: Michael Ellerman mpe@ellerman.id.au Signed-off-by: Naveen N. Rao naveen.n.rao@linux.vnet.ibm.com Signed-off-by: Michael Ellerman mpe@ellerman.id.au Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/powerpc/include/asm/ftrace.h | 10 +++------- 1 file changed, 3 insertions(+), 7 deletions(-)
--- a/arch/powerpc/include/asm/ftrace.h +++ b/arch/powerpc/include/asm/ftrace.h @@ -73,13 +73,9 @@ struct dyn_arch_ftrace { #define ARCH_HAS_SYSCALL_MATCH_SYM_NAME static inline bool arch_syscall_match_sym_name(const char *sym, const char *name) { - /* - * Compare the symbol name with the system call name. Skip the .sys or .SyS - * prefix from the symbol name and the sys prefix from the system call name and - * just match the rest. This is only needed on ppc64 since symbol names on - * 32bit do not start with a period so the generic function will work. - */ - return !strcmp(sym + 4, name + 3); + /* We need to skip past the initial dot, and the __se_sys alias */ + return !strcmp(sym + 1, name) || + (!strncmp(sym, ".__se_sys", 9) && !strcmp(sym + 6, name)); } #endif #endif /* CONFIG_FTRACE_SYSCALLS && !__ASSEMBLY__ */
Greg Kroah-Hartman wrote:
4.16-stable review patch. If anyone has any objections, please let me know.
Please drop this and the next patch since these depend on commit e145242ea0df6, which is not in v4.16.
- Naveen
From: "Naveen N. Rao" naveen.n.rao@linux.vnet.ibm.com
[ Upstream commit 0b7758aaf6543b9a10c8671db559e9d374a3fd95 ]
On powerpc64 ABIv1, we are enabling syscall tracing for only ~20 syscalls. This is due to commit e145242ea0df6 ("syscalls/core, syscalls/x86: Clean up syscall stub naming convention") which has changed the syscall entry wrapper prefix from "SyS" to "__se_sys".
Update the logic for ABIv1 to not just skip the initial dot, but also the "__se_sys" prefix.
Fixes: commit e145242ea0df6 ("syscalls/core, syscalls/x86: Clean up syscall stub naming convention") Reported-by: Michael Ellerman mpe@ellerman.id.au Signed-off-by: Naveen N. Rao naveen.n.rao@linux.vnet.ibm.com Signed-off-by: Michael Ellerman mpe@ellerman.id.au Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
arch/powerpc/include/asm/ftrace.h | 10 +++------- 1 file changed, 3 insertions(+), 7 deletions(-)
--- a/arch/powerpc/include/asm/ftrace.h +++ b/arch/powerpc/include/asm/ftrace.h @@ -73,13 +73,9 @@ struct dyn_arch_ftrace { #define ARCH_HAS_SYSCALL_MATCH_SYM_NAME static inline bool arch_syscall_match_sym_name(const char *sym, const char *name) {
- /*
* Compare the symbol name with the system call name. Skip the .sys or .SyS
* prefix from the symbol name and the sys prefix from the system call name and
* just match the rest. This is only needed on ppc64 since symbol names on
* 32bit do not start with a period so the generic function will work.
*/
- return !strcmp(sym + 4, name + 3);
- /* We need to skip past the initial dot, and the __se_sys alias */
- return !strcmp(sym + 1, name) ||
(!strncmp(sym, ".__se_sys", 9) && !strcmp(sym + 6, name));
} #endif #endif /* CONFIG_FTRACE_SYSCALLS && !__ASSEMBLY__ */
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: "Naveen N. Rao" naveen.n.rao@linux.vnet.ibm.com
[ Upstream commit edf6a2dfe3889daf97e7c164891a87832169e3e4 ]
Some syscall entry functions on powerpc are prefixed with ppc_/ppc32_/ppc64_ rather than the usual sys_/__se_sys prefix. fork(), clone(), swapcontext() are some examples of syscalls with such entry points. We need to match against these names when initializing ftrace syscall tracing.
Signed-off-by: Naveen N. Rao naveen.n.rao@linux.vnet.ibm.com Signed-off-by: Michael Ellerman mpe@ellerman.id.au Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/powerpc/include/asm/ftrace.h | 21 +++++++++++++++++++-- 1 file changed, 19 insertions(+), 2 deletions(-)
--- a/arch/powerpc/include/asm/ftrace.h +++ b/arch/powerpc/include/asm/ftrace.h @@ -69,13 +69,30 @@ struct dyn_arch_ftrace { #endif
#if defined(CONFIG_FTRACE_SYSCALLS) && !defined(__ASSEMBLY__) -#ifdef PPC64_ELF_ABI_v1 +/* + * Some syscall entry functions on powerpc start with "ppc_" (fork and clone, + * for instance) or ppc32_/ppc64_. We should also match the sys_ variant with + * those. + */ #define ARCH_HAS_SYSCALL_MATCH_SYM_NAME +#ifdef PPC64_ELF_ABI_v1 static inline bool arch_syscall_match_sym_name(const char *sym, const char *name) { /* We need to skip past the initial dot, and the __se_sys alias */ return !strcmp(sym + 1, name) || - (!strncmp(sym, ".__se_sys", 9) && !strcmp(sym + 6, name)); + (!strncmp(sym, ".__se_sys", 9) && !strcmp(sym + 6, name)) || + (!strncmp(sym, ".ppc_", 5) && !strcmp(sym + 5, name + 4)) || + (!strncmp(sym, ".ppc32_", 7) && !strcmp(sym + 7, name + 4)) || + (!strncmp(sym, ".ppc64_", 7) && !strcmp(sym + 7, name + 4)); +} +#else +static inline bool arch_syscall_match_sym_name(const char *sym, const char *name) +{ + return !strcmp(sym, name) || + (!strncmp(sym, "__se_sys", 8) && !strcmp(sym + 5, name)) || + (!strncmp(sym, "ppc_", 4) && !strcmp(sym + 4, name + 4)) || + (!strncmp(sym, "ppc32_", 6) && !strcmp(sym + 6, name + 4)) || + (!strncmp(sym, "ppc64_", 6) && !strcmp(sym + 6, name + 4)); } #endif #endif /* CONFIG_FTRACE_SYSCALLS && !__ASSEMBLY__ */
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Ilan Peer ilan.peer@intel.com
[ Upstream commit 407879b690ba3a6bf29be896d02dad63463bd1c0 ]
The IEEE P802.11-REVmd D1.0 specification updated the SAE authentication timeout to be 2000 milliseconds (see dot11RSNASAERetransPeriod). Update the SAE timeout setting accordingly.
While at it, reduce some code duplication in the timeout configuration.
Signed-off-by: Ilan Peer ilan.peer@intel.com Signed-off-by: Luca Coelho luciano.coelho@intel.com Signed-off-by: Johannes Berg johannes.berg@intel.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- net/mac80211/mlme.c | 25 ++++++++++++++++++------- 1 file changed, 18 insertions(+), 7 deletions(-)
--- a/net/mac80211/mlme.c +++ b/net/mac80211/mlme.c @@ -35,6 +35,7 @@ #define IEEE80211_AUTH_TIMEOUT (HZ / 5) #define IEEE80211_AUTH_TIMEOUT_LONG (HZ / 2) #define IEEE80211_AUTH_TIMEOUT_SHORT (HZ / 10) +#define IEEE80211_AUTH_TIMEOUT_SAE (HZ * 2) #define IEEE80211_AUTH_MAX_TRIES 3 #define IEEE80211_AUTH_WAIT_ASSOC (HZ * 5) #define IEEE80211_ASSOC_TIMEOUT (HZ / 5) @@ -3788,16 +3789,19 @@ static int ieee80211_auth(struct ieee802 tx_flags);
if (tx_flags == 0) { - auth_data->timeout = jiffies + IEEE80211_AUTH_TIMEOUT; - auth_data->timeout_started = true; - run_again(sdata, auth_data->timeout); + if (auth_data->algorithm == WLAN_AUTH_SAE) + auth_data->timeout = jiffies + + IEEE80211_AUTH_TIMEOUT_SAE; + else + auth_data->timeout = jiffies + IEEE80211_AUTH_TIMEOUT; } else { auth_data->timeout = round_jiffies_up(jiffies + IEEE80211_AUTH_TIMEOUT_LONG); - auth_data->timeout_started = true; - run_again(sdata, auth_data->timeout); }
+ auth_data->timeout_started = true; + run_again(sdata, auth_data->timeout); + return 0; }
@@ -3868,8 +3872,15 @@ void ieee80211_sta_work(struct ieee80211 ifmgd->status_received = false; if (ifmgd->auth_data && ieee80211_is_auth(fc)) { if (status_acked) { - ifmgd->auth_data->timeout = - jiffies + IEEE80211_AUTH_TIMEOUT_SHORT; + if (ifmgd->auth_data->algorithm == + WLAN_AUTH_SAE) + ifmgd->auth_data->timeout = + jiffies + + IEEE80211_AUTH_TIMEOUT_SAE; + else + ifmgd->auth_data->timeout = + jiffies + + IEEE80211_AUTH_TIMEOUT_SHORT; run_again(sdata, ifmgd->auth_data->timeout); } else { ifmgd->auth_data->timeout = jiffies - 1;
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Eric Anholt eric@anholt.net
[ Upstream commit 164c2416dd40770aba5814f93da835e8a9f7196d ]
In the cleanup, I didn't notice that we needed to dereference the connector for the bus_format. Fix the regression by looking up the first (and only) connector attached to us, and assume that its bus_format is what we want. Some day it would be good to have that part of display_info attached to the bridge, instead.
v2: Fix stray whitespace change
Signed-off-by: Eric Anholt eric@anholt.net Fixes: 7b1298e05310 ("drm/vc4: Switch DPI to using the panel-bridge helper.") Link: https://patchwork.freedesktop.org/patch/msgid/20180309233256.1667-1-eric@anh... Reviewed-by: Sean Paul seanpaul@chromium.org Reviewed-by: Boris Brezillon boris.brezillon@bootlin.com Signed-off-by: Sean Paul seanpaul@chromium.org Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/gpu/drm/vc4/vc4_dpi.c | 25 ++++++++++++++++++++++--- 1 file changed, 22 insertions(+), 3 deletions(-)
--- a/drivers/gpu/drm/vc4/vc4_dpi.c +++ b/drivers/gpu/drm/vc4/vc4_dpi.c @@ -96,7 +96,6 @@ struct vc4_dpi { struct platform_device *pdev;
struct drm_encoder *encoder; - struct drm_connector *connector;
void __iomem *regs;
@@ -164,14 +163,31 @@ static void vc4_dpi_encoder_disable(stru
static void vc4_dpi_encoder_enable(struct drm_encoder *encoder) { + struct drm_device *dev = encoder->dev; struct drm_display_mode *mode = &encoder->crtc->mode; struct vc4_dpi_encoder *vc4_encoder = to_vc4_dpi_encoder(encoder); struct vc4_dpi *dpi = vc4_encoder->dpi; + struct drm_connector_list_iter conn_iter; + struct drm_connector *connector = NULL, *connector_scan; u32 dpi_c = DPI_ENABLE | DPI_OUTPUT_ENABLE_MODE; int ret;
- if (dpi->connector->display_info.num_bus_formats) { - u32 bus_format = dpi->connector->display_info.bus_formats[0]; + /* Look up the connector attached to DPI so we can get the + * bus_format. Ideally the bridge would tell us the + * bus_format we want, but it doesn't yet, so assume that it's + * uniform throughout the bridge chain. + */ + drm_connector_list_iter_begin(dev, &conn_iter); + drm_for_each_connector_iter(connector_scan, &conn_iter) { + if (connector_scan->encoder == encoder) { + connector = connector_scan; + break; + } + } + drm_connector_list_iter_end(&conn_iter); + + if (connector && connector->display_info.num_bus_formats) { + u32 bus_format = connector->display_info.bus_formats[0];
switch (bus_format) { case MEDIA_BUS_FMT_RGB888_1X24: @@ -199,6 +215,9 @@ static void vc4_dpi_encoder_enable(struc DRM_ERROR("Unknown media bus format %d\n", bus_format); break; } + } else { + /* Default to 24bit if no connector found. */ + dpi_c |= VC4_SET_FIELD(DPI_FORMAT_24BIT_888_RGB, DPI_FORMAT); }
if (mode->flags & DRM_MODE_FLAG_NHSYNC)
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Dan Carpenter dan.carpenter@oracle.com
[ Upstream commit 4a9fbfcab19d3f71ad2bf0bcb653c4ee84e69c7f ]
Smatch complains that "area_free" could be used without being initialized. This code is several years old and premusably works fine so this can't be a very serious bug. But it's easy enough to silence the warning. If "area_free" is false at the end of the function then we return -ENOMEM.
Signed-off-by: Dan Carpenter dan.carpenter@oracle.com Signed-off-by: Tomi Valkeinen tomi.valkeinen@ti.com Link: https://patchwork.freedesktop.org/patch/msgid/20180418142937.GA13828@mwanda Signed-off-by: Sean Paul seanpaul@chromium.org Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/gpu/drm/omapdrm/tcm-sita.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/gpu/drm/omapdrm/tcm-sita.c +++ b/drivers/gpu/drm/omapdrm/tcm-sita.c @@ -90,7 +90,7 @@ static int l2r_t2b(uint16_t w, uint16_t { int i; unsigned long index; - bool area_free; + bool area_free = false; unsigned long slots_per_band = PAGE_SIZE / slot_bytes; unsigned long bit_offset = (offset > 0) ? offset / slot_bytes : 0; unsigned long curr_bit = bit_offset;
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Tomi Valkeinen tomi.valkeinen@ti.com
[ Upstream commit 77eeac24b10fc84d3ffd5b11a897dff88dde244d ]
audio_config function for both HDMI4 and HDMI5 return uninitialized value as the error code if the display is not currently enabled. For some reason this has not caused any issues.
Signed-off-by: Tomi Valkeinen tomi.valkeinen@ti.com Link: https://patchwork.freedesktop.org/patch/msgid/20180329104038.29154-1-tomi.va... Reviewed-by: Emil Velikov emil.velikov@collabora.com Reviewed-by: Laurent Pinchart laurent.pinchart@ideasonboard.com Signed-off-by: Sean Paul seanpaul@chromium.org Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/gpu/drm/omapdrm/dss/hdmi4.c | 2 +- drivers/gpu/drm/omapdrm/dss/hdmi5.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-)
--- a/drivers/gpu/drm/omapdrm/dss/hdmi4.c +++ b/drivers/gpu/drm/omapdrm/dss/hdmi4.c @@ -665,7 +665,7 @@ static int hdmi_audio_config(struct devi struct omap_dss_audio *dss_audio) { struct omap_hdmi *hd = dev_get_drvdata(dev); - int ret; + int ret = 0;
mutex_lock(&hd->lock);
--- a/drivers/gpu/drm/omapdrm/dss/hdmi5.c +++ b/drivers/gpu/drm/omapdrm/dss/hdmi5.c @@ -660,7 +660,7 @@ static int hdmi_audio_config(struct devi struct omap_dss_audio *dss_audio) { struct omap_hdmi *hd = dev_get_drvdata(dev); - int ret; + int ret = 0;
mutex_lock(&hd->lock);
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Tomi Valkeinen tomi.valkeinen@ti.com
[ Upstream commit 6a0f0c55619f0b82a677cab72e77c3444a5eee58 ]
tiler_reserve_2d allocates memory but does not check if it got the memory. Add the check and return ENOMEM on failure.
Signed-off-by: Tomi Valkeinen tomi.valkeinen@ti.com Link: https://patchwork.freedesktop.org/patch/msgid/20180329104038.29154-2-tomi.va... Reviewed-by: Emil Velikov emil.velikov@collabora.com Reviewed-by: Laurent Pinchart laurent.pinchart@ideasonboard.com Signed-off-by: Sean Paul seanpaul@chromium.org Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/gpu/drm/omapdrm/omap_dmm_tiler.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-)
--- a/drivers/gpu/drm/omapdrm/omap_dmm_tiler.c +++ b/drivers/gpu/drm/omapdrm/omap_dmm_tiler.c @@ -401,12 +401,16 @@ int tiler_unpin(struct tiler_block *bloc struct tiler_block *tiler_reserve_2d(enum tiler_fmt fmt, uint16_t w, uint16_t h, uint16_t align) { - struct tiler_block *block = kzalloc(sizeof(*block), GFP_KERNEL); + struct tiler_block *block; u32 min_align = 128; int ret; unsigned long flags; u32 slot_bytes;
+ block = kzalloc(sizeof(*block), GFP_KERNEL); + if (!block) + return ERR_PTR(-ENOMEM); + BUG_ON(!validfmt(fmt));
/* convert width/height to slots */
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Tomi Valkeinen tomi.valkeinen@ti.com
[ Upstream commit 4d6cb5e2fee52af17001e92950f0894304706ee4 ]
soc_device_match() can return NULL, so add a check and fail if soc_device_match() fails.
Signed-off-by: Tomi Valkeinen tomi.valkeinen@ti.com Link: https://patchwork.freedesktop.org/patch/msgid/20180502091159.7071-2-tomi.val... Reviewed-by: Benoit Parrot bparrot@ti.com Reviewed-by: Peter Ujfalusi peter.ujfalusi@ti.com Signed-off-by: Sean Paul seanpaul@chromium.org Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/gpu/drm/omapdrm/dss/hdmi4_core.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-)
--- a/drivers/gpu/drm/omapdrm/dss/hdmi4_core.c +++ b/drivers/gpu/drm/omapdrm/dss/hdmi4_core.c @@ -922,8 +922,13 @@ int hdmi4_core_init(struct platform_devi { const struct hdmi4_features *features; struct resource *res; + const struct soc_device_attribute *soc;
- features = soc_device_match(hdmi4_soc_devices)->data; + soc = soc_device_match(hdmi4_soc_devices); + if (!soc) + return -ENODEV; + + features = soc->data; core->cts_swmode = features->cts_swmode; core->audio_use_mclk = features->audio_use_mclk;
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Tomi Valkeinen tomi.valkeinen@ti.com
[ Upstream commit 47aaaec818dfd1009d1358974a2931f05dd57203 ]
Handle memory allocation failures in omap_connector to avoid NULL derefs.
Signed-off-by: Tomi Valkeinen tomi.valkeinen@ti.com Link: https://patchwork.freedesktop.org/patch/msgid/20180502091159.7071-5-tomi.val... Reviewed-by: Benoit Parrot bparrot@ti.com Reviewed-by: Peter Ujfalusi peter.ujfalusi@ti.com Signed-off-by: Sean Paul seanpaul@chromium.org Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/gpu/drm/omapdrm/omap_connector.c | 10 ++++++++++ 1 file changed, 10 insertions(+)
--- a/drivers/gpu/drm/omapdrm/omap_connector.c +++ b/drivers/gpu/drm/omapdrm/omap_connector.c @@ -121,6 +121,9 @@ static int omap_connector_get_modes(stru if (dssdrv->read_edid) { void *edid = kzalloc(MAX_EDID, GFP_KERNEL);
+ if (!edid) + return 0; + if ((dssdrv->read_edid(dssdev, edid, MAX_EDID) > 0) && drm_edid_is_valid(edid)) { drm_mode_connector_update_edid_property( @@ -139,6 +142,9 @@ static int omap_connector_get_modes(stru struct drm_display_mode *mode = drm_mode_create(dev); struct videomode vm = {0};
+ if (!mode) + return 0; + dssdrv->get_timings(dssdev, &vm);
drm_display_mode_from_videomode(&vm, mode); @@ -200,6 +206,10 @@ static int omap_connector_mode_valid(str if (!r) { /* check if vrefresh is still valid */ new_mode = drm_mode_duplicate(dev, mode); + + if (!new_mode) + return MODE_BAD; + new_mode->clock = vm.pixelclock / 1000; new_mode->vrefresh = 0; if (mode->vrefresh == drm_mode_vrefresh(new_mode))
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Jianchao Wang jianchao.w.wang@oracle.com
[ Upstream commit 12d9f07022dcde261ad16e9a11f45096dc68b03c ]
Currently only nvme_ctrl will take a reference counter of nvme_subsystem, nvme_ns_head also needs it. Otherwise nvme_free_ns_head will access the nvme_subsystem.ns_ida which has been freed by __nvme_release_subsystem after all the reference of nvme_subsystem have been released by nvme_free_ctrl. This could cause memory corruption.
BUG: KASAN: use-after-free in radix_tree_next_chunk+0x9f/0x4b0 Read of size 8 at addr ffff88036494d2e8 by task fio/1815
CPU: 1 PID: 1815 Comm: fio Kdump: loaded Tainted: G W 4.17.0-rc1+ #18 Hardware name: LENOVO 10MLS0E339/3106, BIOS M1AKT22A 06/27/2017 Call Trace: dump_stack+0x91/0xeb print_address_description+0x6b/0x290 kasan_report+0x261/0x360 radix_tree_next_chunk+0x9f/0x4b0 ida_remove+0x8b/0x180 ida_simple_remove+0x26/0x40 nvme_free_ns_head+0x58/0xc0 __blkdev_put+0x30a/0x3a0 blkdev_close+0x44/0x50 __fput+0x184/0x380 task_work_run+0xaf/0xe0 do_exit+0x501/0x1440 do_group_exit+0x89/0x140 __x64_sys_exit_group+0x28/0x30 do_syscall_64+0x72/0x230
Signed-off-by: Jianchao Wang jianchao.w.wang@oracle.com Reviewed-by: Christoph Hellwig hch@lst.de Signed-off-by: Keith Busch keith.busch@intel.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/nvme/host/core.c | 5 +++++ 1 file changed, 5 insertions(+)
--- a/drivers/nvme/host/core.c +++ b/drivers/nvme/host/core.c @@ -99,6 +99,7 @@ static struct class *nvme_subsys_class;
static void nvme_ns_remove(struct nvme_ns *ns); static int nvme_revalidate_disk(struct gendisk *disk); +static void nvme_put_subsystem(struct nvme_subsystem *subsys);
static __le32 nvme_get_log_dw10(u8 lid, size_t size) { @@ -353,6 +354,7 @@ static void nvme_free_ns_head(struct kre ida_simple_remove(&head->subsys->ns_ida, head->instance); list_del_init(&head->entry); cleanup_srcu_struct(&head->srcu); + nvme_put_subsystem(head->subsys); kfree(head); }
@@ -2843,6 +2845,9 @@ static struct nvme_ns_head *nvme_alloc_n goto out_cleanup_srcu;
list_add_tail(&head->entry, &ctrl->subsys->nsheads); + + kref_get(&ctrl->subsys->ref); + return head; out_cleanup_srcu: cleanup_srcu_struct(&head->srcu);
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Sara Sharon sara.sharon@intel.com
[ Upstream commit 914eac248d876f9c00cd1792ffec3d182c863f13 ]
2016 spec, section 10.24.2 specifies that the block ack timeout in the ADD BA request is advisory.
That means we should check the value in the response and act upon it (same as buffer size).
Signed-off-by: Sara Sharon sara.sharon@intel.com Signed-off-by: Luca Coelho luciano.coelho@intel.com Signed-off-by: Johannes Berg johannes.berg@intel.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- net/mac80211/agg-tx.c | 4 ++++ net/mac80211/tx.c | 3 ++- 2 files changed, 6 insertions(+), 1 deletion(-)
--- a/net/mac80211/agg-tx.c +++ b/net/mac80211/agg-tx.c @@ -8,6 +8,7 @@ * Copyright 2007, Michael Wu flamingice@sourmilk.net * Copyright 2007-2010, Intel Corporation * Copyright(c) 2015-2017 Intel Deutschland GmbH + * Copyright (C) 2018 Intel Corporation * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as @@ -970,6 +971,9 @@ void ieee80211_process_addba_resp(struct
sta->ampdu_mlme.addba_req_num[tid] = 0;
+ tid_tx->timeout = + le16_to_cpu(mgmt->u.action.u.addba_resp.timeout); + if (tid_tx->timeout) { mod_timer(&tid_tx->session_timer, TU_TO_EXP_TIME(tid_tx->timeout)); --- a/net/mac80211/tx.c +++ b/net/mac80211/tx.c @@ -4,6 +4,7 @@ * Copyright 2006-2007 Jiri Benc jbenc@suse.cz * Copyright 2007 Johannes Berg johannes@sipsolutions.net * Copyright 2013-2014 Intel Mobile Communications GmbH + * Copyright (C) 2018 Intel Corporation * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as @@ -1138,7 +1139,7 @@ static bool ieee80211_tx_prep_agg(struct }
/* reset session timer */ - if (reset_agg_timer && tid_tx->timeout) + if (reset_agg_timer) tid_tx->last_tx = jiffies;
return queued;
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: "van der Linden, Frank" fllinden@amazon.com
[ Upstream commit d1ecfa9d1f402366b1776fbf84e635678a51414f ]
This patch fixes crashes during boot for HVM guests on older (pre HVM vector callback) Xen versions. Without this, current kernels will always fail to boot on those Xen versions.
Sample stack trace:
BUG: unable to handle kernel paging request at ffffffffff200000 IP: __xen_evtchn_do_upcall+0x1e/0x80 PGD 1e0e067 P4D 1e0e067 PUD 1e10067 PMD 235c067 PTE 0 Oops: 0002 [#1] SMP PTI Modules linked in: CPU: 0 PID: 512 Comm: kworker/u2:0 Not tainted 4.14.33-52.13.amzn1.x86_64 #1 Hardware name: Xen HVM domU, BIOS 3.4.3.amazon 11/11/2016 task: ffff88002531d700 task.stack: ffffc90000480000 RIP: 0010:__xen_evtchn_do_upcall+0x1e/0x80 RSP: 0000:ffff880025403ef0 EFLAGS: 00010046 RAX: ffffffff813cc760 RBX: ffffffffff200000 RCX: ffffc90000483ef0 RDX: ffff880020540a00 RSI: ffff880023c78000 RDI: 000000000000001c RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: ffff880025403f5c R14: 0000000000000000 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff880025400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffffff200000 CR3: 0000000001e0a000 CR4: 00000000000006f0 Call Trace: <IRQ> do_hvm_evtchn_intr+0xa/0x10 __handle_irq_event_percpu+0x43/0x1a0 handle_irq_event_percpu+0x20/0x50 handle_irq_event+0x39/0x60 handle_fasteoi_irq+0x80/0x140 handle_irq+0xaf/0x120 do_IRQ+0x41/0xd0 common_interrupt+0x7d/0x7d </IRQ>
During boot, the HYPERVISOR_shared_info page gets remapped to make it work with KASLR. This means that any pointer derived from it needs to be adjusted.
The only value that this applies to is the vcpu_info pointer for VCPU 0. For PV and HVM with the callback vector feature, this gets done via the smp_ops prepare_boot_cpu callback. Older Xen versions do not support the HVM callback vector, so there is no Xen-specific smp_ops set up in that scenario. So, the vcpu_info pointer for VCPU 0 never gets set to the proper value, and the first reference of it will be bad. Fix this by resetting it immediately after the remap.
Signed-off-by: Frank van der Linden fllinden@amazon.com Reviewed-by: Eduardo Valentin eduval@amazon.com Reviewed-by: Alakesh Haloi alakeshh@amazon.com Reviewed-by: Vallish Vaidyeshwara vallish@amazon.com Reviewed-by: Boris Ostrovsky boris.ostrovsky@oracle.com Cc: Juergen Gross jgross@suse.com Cc: Boris Ostrovsky boris.ostrovsky@oracle.com Cc: xen-devel@lists.xenproject.org Signed-off-by: Boris Ostrovsky boris.ostrovsky@oracle.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/x86/xen/enlighten_hvm.c | 13 +++++++++++++ 1 file changed, 13 insertions(+)
--- a/arch/x86/xen/enlighten_hvm.c +++ b/arch/x86/xen/enlighten_hvm.c @@ -65,6 +65,19 @@ static void __init xen_hvm_init_mem_mapp { early_memunmap(HYPERVISOR_shared_info, PAGE_SIZE); HYPERVISOR_shared_info = __va(PFN_PHYS(shared_info_pfn)); + + /* + * The virtual address of the shared_info page has changed, so + * the vcpu_info pointer for VCPU 0 is now stale. + * + * The prepare_boot_cpu callback will re-initialize it via + * xen_vcpu_setup, but we can't rely on that to be called for + * old Xen versions (xen_have_vector_callback == 0). + * + * It is, in any case, bad to have a stale vcpu_info pointer + * so reset it now. + */ + xen_vcpu_info_reset(0); }
static void __init init_hvm_pv_info(void)
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Igor Russkikh igor.russkikh@aquantia.com
[ Upstream commit 8c61ab7f111a2b29d051348b9cb9a39804ebf1f8 ]
In particular, not reporting SG forced skbs to be linear for vlan interfaces over atlantic NIC.
With this fix it is possible to enable SG feature on device and therefore optimize performance.
Reported-by: Ma Yuying yuma@redhat.com Signed-off-by: Igor Russkikh igor.russkikh@aquantia.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/net/ethernet/aquantia/atlantic/aq_nic.c | 2 ++ 1 file changed, 2 insertions(+)
--- a/drivers/net/ethernet/aquantia/atlantic/aq_nic.c +++ b/drivers/net/ethernet/aquantia/atlantic/aq_nic.c @@ -246,6 +246,8 @@ void aq_nic_ndev_init(struct aq_nic_s *s
self->ndev->hw_features |= aq_hw_caps->hw_features; self->ndev->features = aq_hw_caps->hw_features; + self->ndev->vlan_features |= NETIF_F_HW_CSUM | NETIF_F_RXCSUM | + NETIF_F_RXHASH | NETIF_F_SG | NETIF_F_LRO; self->ndev->priv_flags = aq_hw_caps->hw_priv_flags; self->ndev->priv_flags |= IFF_LIVE_ADDR_CHANGE;
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Igor Russkikh igor.russkikh@aquantia.com
[ Upstream commit a09bd81b5413d1b4d705c6c5303b5d311069da22 ]
Driver should use pci_alloc_irq_vectors return value to correct number of allocated vectors and napi instances. Otherwise it'll panic later in pci_irq_vector.
Driver also should allow more than one MSI vectors to be allocated.
Error return path from pci_alloc_irq_vectors is also fixed to revert resources in a correct sequence when error happens.
Reported-by: Long, Nicholas nicholas.a.long@baesystems.com Fixes: 23ee07a ("net: aquantia: Cleanup pci functions module") Signed-off-by: Igor Russkikh igor.russkikh@aquantia.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/net/ethernet/aquantia/atlantic/aq_nic.c | 1 drivers/net/ethernet/aquantia/atlantic/aq_nic.h | 1 drivers/net/ethernet/aquantia/atlantic/aq_pci_func.c | 20 +++++++++---------- 3 files changed, 12 insertions(+), 10 deletions(-)
--- a/drivers/net/ethernet/aquantia/atlantic/aq_nic.c +++ b/drivers/net/ethernet/aquantia/atlantic/aq_nic.c @@ -95,6 +95,7 @@ void aq_nic_cfg_start(struct aq_nic_s *s /*rss rings */ cfg->vecs = min(cfg->aq_hw_caps->vecs, AQ_CFG_VECS_DEF); cfg->vecs = min(cfg->vecs, num_online_cpus()); + cfg->vecs = min(cfg->vecs, self->irqvecs); /* cfg->vecs should be power of 2 for RSS */ if (cfg->vecs >= 8U) cfg->vecs = 8U; --- a/drivers/net/ethernet/aquantia/atlantic/aq_nic.h +++ b/drivers/net/ethernet/aquantia/atlantic/aq_nic.h @@ -80,6 +80,7 @@ struct aq_nic_s {
struct pci_dev *pdev; unsigned int msix_entry_mask; + u32 irqvecs; };
static inline struct device *aq_nic_get_dev(struct aq_nic_s *self) --- a/drivers/net/ethernet/aquantia/atlantic/aq_pci_func.c +++ b/drivers/net/ethernet/aquantia/atlantic/aq_pci_func.c @@ -267,16 +267,16 @@ static int aq_pci_probe(struct pci_dev * numvecs = min(numvecs, num_online_cpus()); /*enable interrupts */ #if !AQ_CFG_FORCE_LEGACY_INT - err = pci_alloc_irq_vectors(self->pdev, numvecs, numvecs, - PCI_IRQ_MSIX); - - if (err < 0) { - err = pci_alloc_irq_vectors(self->pdev, 1, 1, - PCI_IRQ_MSI | PCI_IRQ_LEGACY); - if (err < 0) - goto err_hwinit; + numvecs = pci_alloc_irq_vectors(self->pdev, 1, numvecs, + PCI_IRQ_MSIX | PCI_IRQ_MSI | + PCI_IRQ_LEGACY); + + if (numvecs < 0) { + err = numvecs; + goto err_hwinit; } #endif + self->irqvecs = numvecs;
/* net device init */ aq_nic_cfg_start(self); @@ -298,9 +298,9 @@ err_free_aq_hw: kfree(self->aq_hw); err_ioremap: free_netdev(ndev); -err_pci_func: - pci_release_regions(pdev); err_ndev: + pci_release_regions(pdev); +err_pci_func: pci_disable_device(pdev); return err; }
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Michael Ellerman mpe@ellerman.id.au
[ Upstream commit 6c0a8f6b5a45ac892a763b6299bd3c5324fc5e02 ]
The build is failing with CONFIG_NUMA=n and some compiler versions:
arch/powerpc/platforms/pseries/hotplug-cpu.o: In function `dlpar_online_cpu': hotplug-cpu.c:(.text+0x12c): undefined reference to `timed_topology_update' arch/powerpc/platforms/pseries/hotplug-cpu.o: In function `dlpar_cpu_remove': hotplug-cpu.c:(.text+0x400): undefined reference to `timed_topology_update'
Fix it by moving the empty version of timed_topology_update() into the existing #ifdef block, which has the right guard of SPLPAR && NUMA.
Fixes: cee5405da402 ("powerpc/hotplug: Improve responsiveness of hotplug change") Signed-off-by: Michael Ellerman mpe@ellerman.id.au Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/powerpc/include/asm/topology.h | 13 +++++-------- 1 file changed, 5 insertions(+), 8 deletions(-)
--- a/arch/powerpc/include/asm/topology.h +++ b/arch/powerpc/include/asm/topology.h @@ -91,6 +91,7 @@ extern int start_topology_update(void); extern int stop_topology_update(void); extern int prrn_is_enabled(void); extern int find_and_online_cpu_nid(int cpu); +extern int timed_topology_update(int nsecs); #else static inline int start_topology_update(void) { @@ -108,16 +109,12 @@ static inline int find_and_online_cpu_ni { return 0; } +static inline int timed_topology_update(int nsecs) +{ + return 0; +} #endif /* CONFIG_NUMA && CONFIG_PPC_SPLPAR */
-#if defined(CONFIG_HOTPLUG_CPU) || defined(CONFIG_NEED_MULTIPLE_NODES) -#if defined(CONFIG_PPC_SPLPAR) -extern int timed_topology_update(int nsecs); -#else -#define timed_topology_update(nsecs) -#endif /* CONFIG_PPC_SPLPAR */ -#endif /* CONFIG_HOTPLUG_CPU || CONFIG_NEED_MULTIPLE_NODES */ - #include <asm-generic/topology.h>
#ifdef CONFIG_SMP
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Jakob Unterwurzacher jakob.unterwurzacher@theobroma-systems.com
[ Upstream commit 71c23a821c6bcacba71a094efe49ee689605906b ]
bus-off is usually caused by hardware malfunction or configuration error (baud rate mismatch) and causes a complete loss of communication.
Increase the "bus-off" message's severity from netdev_dbg() to netdev_info() to make it visible to the user.
A can interface going into bus-off is similar in severity to ethernet's "Link is Down" message, which is also printed at info level.
It is debatable whether the the "restarted" message should also be changed to netdev_info() to make the interface state changes comprehensible from the kernel log. I have chosen to keep the "restarted" message at dbg for now as the "bus-off" message should be enough for the user to notice and investigate the problem.
Signed-off-by: Jakob Unterwurzacher jakob.unterwurzacher@theobroma-systems.com Cc: linux-can@vger.kernel.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Marc Kleine-Budde mkl@pengutronix.de Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/net/can/dev.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/net/can/dev.c +++ b/drivers/net/can/dev.c @@ -605,7 +605,7 @@ void can_bus_off(struct net_device *dev) { struct can_priv *priv = netdev_priv(dev);
- netdev_dbg(dev, "bus-off\n"); + netdev_info(dev, "bus-off\n");
netif_carrier_off(dev);
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Hans de Goede hdegoede@redhat.com
[ Upstream commit 070b9637dd8fa85c3ba7ecc60fe57fa4da9c2d1d ]
The 0457:10fb touchscreen found on the Toshiba Click Mini L9W-B needs to have a report-decriptors command send to it on resume in order for the touchscreen to start generating events again on resume.
Signed-off-by: Hans de Goede hdegoede@redhat.com Acked-by: Benjamin Tissoires benjamin.tissoires@redhat.com Signed-off-by: Jiri Kosina jkosina@suse.cz Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/hid/hid-ids.h | 1 + drivers/hid/i2c-hid/i2c-hid.c | 2 ++ 2 files changed, 3 insertions(+)
--- a/drivers/hid/hid-ids.h +++ b/drivers/hid/hid-ids.h @@ -966,6 +966,7 @@ #define USB_DEVICE_ID_SIS817_TOUCH 0x0817 #define USB_DEVICE_ID_SIS_TS 0x1013 #define USB_DEVICE_ID_SIS1030_TOUCH 0x1030 +#define USB_DEVICE_ID_SIS10FB_TOUCH 0x10fb
#define USB_VENDOR_ID_SKYCABLE 0x1223 #define USB_DEVICE_ID_SKYCABLE_WIRELESS_PRESENTER 0x3F07 --- a/drivers/hid/i2c-hid/i2c-hid.c +++ b/drivers/hid/i2c-hid/i2c-hid.c @@ -174,6 +174,8 @@ static const struct i2c_hid_quirks { I2C_HID_QUIRK_NO_IRQ_AFTER_RESET }, { I2C_VENDOR_ID_RAYD, I2C_PRODUCT_ID_RAYD_3118, I2C_HID_QUIRK_RESEND_REPORT_DESCR }, + { USB_VENDOR_ID_SIS_TOUCH, USB_DEVICE_ID_SIS10FB_TOUCH, + I2C_HID_QUIRK_RESEND_REPORT_DESCR }, { 0, 0 } };
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: David Gilhooley dgilhooley@nvidia.com
[ Upstream commit 1b06bd8dd95f7a19ab33fdf0f477c94950822ab3 ]
This patch adds the MIDR encodings for NVIDIA as well as the Denver and Carmel CPUs used in Tegra SoCs.
Signed-off-by: David Gilhooley dgilhooley@nvidia.com Signed-off-by: Will Deacon will.deacon@arm.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/arm64/include/asm/cputype.h | 6 ++++++ 1 file changed, 6 insertions(+)
--- a/arch/arm64/include/asm/cputype.h +++ b/arch/arm64/include/asm/cputype.h @@ -75,6 +75,7 @@ #define ARM_CPU_IMP_CAVIUM 0x43 #define ARM_CPU_IMP_BRCM 0x42 #define ARM_CPU_IMP_QCOM 0x51 +#define ARM_CPU_IMP_NVIDIA 0x4E
#define ARM_CPU_PART_AEM_V8 0xD0F #define ARM_CPU_PART_FOUNDATION 0xD00 @@ -98,6 +99,9 @@ #define QCOM_CPU_PART_FALKOR 0xC00 #define QCOM_CPU_PART_KRYO 0x200
+#define NVIDIA_CPU_PART_DENVER 0x003 +#define NVIDIA_CPU_PART_CARMEL 0x004 + #define MIDR_CORTEX_A53 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_A53) #define MIDR_CORTEX_A57 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_A57) #define MIDR_CORTEX_A72 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_A72) @@ -112,6 +116,8 @@ #define MIDR_QCOM_FALKOR_V1 MIDR_CPU_MODEL(ARM_CPU_IMP_QCOM, QCOM_CPU_PART_FALKOR_V1) #define MIDR_QCOM_FALKOR MIDR_CPU_MODEL(ARM_CPU_IMP_QCOM, QCOM_CPU_PART_FALKOR) #define MIDR_QCOM_KRYO MIDR_CPU_MODEL(ARM_CPU_IMP_QCOM, QCOM_CPU_PART_KRYO) +#define MIDR_NVIDIA_DENVER MIDR_CPU_MODEL(ARM_CPU_IMP_NVIDIA, NVIDIA_CPU_PART_DENVER) +#define MIDR_NVIDIA_CARMEL MIDR_CPU_MODEL(ARM_CPU_IMP_NVIDIA, NVIDIA_CPU_PART_CARMEL)
#ifndef __ASSEMBLY__
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Long Li longli@microsoft.com
[ Upstream commit 2796d303e3c5ec213c578ed3a66872205c126eb8 ]
The data buffer allocated on the stack can't be DMA'ed, ib_dma_map_page will return an invalid DMA address for a buffer on stack. Even worse, this incorrect address can't be detected by ib_dma_mapping_error. Sending data from this address to hardware will not fail, but the remote peer will get junk data.
Fix this by allocating the request on the heap in smb3_validate_negotiate.
Changes in v2: Removed duplicated code on freeing buffers on function exit. (Thanks to Parav Pandit parav@mellanox.com) Fixed typo in the patch title.
Changes in v3: Added "Fixes" to the patch. Changed several sizeof() to use *pointer in place of struct.
Changes in v4: Added detailed comments on the failure through RDMA. Allocate request buffer using GPF_NOFS. Fixed possible memory leak.
Changes in v5: Removed variable ret for checking return value. Changed to use pneg_inbuf->Dialects[0] to calculate unused space in pneg_inbuf.
Fixes: ff1c038addc4 ("Check SMB3 dialects against downgrade attacks") Signed-off-by: Long Li longli@microsoft.com Signed-off-by: Steve French stfrench@microsoft.com Reviewed-by: Ronnie Sahlberg lsahlber@redhat.com Reviewed-by: Tom Talpey ttalpey@microsoft.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- fs/cifs/smb2pdu.c | 68 ++++++++++++++++++++++++++++++------------------------ 1 file changed, 38 insertions(+), 30 deletions(-)
--- a/fs/cifs/smb2pdu.c +++ b/fs/cifs/smb2pdu.c @@ -621,8 +621,8 @@ neg_exit:
int smb3_validate_negotiate(const unsigned int xid, struct cifs_tcon *tcon) { - int rc = 0; - struct validate_negotiate_info_req vneg_inbuf; + int rc; + struct validate_negotiate_info_req *pneg_inbuf; struct validate_negotiate_info_rsp *pneg_rsp = NULL; u32 rsplen; u32 inbuflen; /* max of 4 dialects */ @@ -656,63 +656,69 @@ int smb3_validate_negotiate(const unsign if (tcon->ses->session_flags & SMB2_SESSION_FLAG_IS_NULL) cifs_dbg(VFS, "Unexpected null user (anonymous) auth flag sent by server\n");
- vneg_inbuf.Capabilities = + pneg_inbuf = kmalloc(sizeof(*pneg_inbuf), GFP_NOFS); + if (!pneg_inbuf) + return -ENOMEM; + + pneg_inbuf->Capabilities = cpu_to_le32(tcon->ses->server->vals->req_capabilities); - memcpy(vneg_inbuf.Guid, tcon->ses->server->client_guid, + memcpy(pneg_inbuf->Guid, tcon->ses->server->client_guid, SMB2_CLIENT_GUID_SIZE);
if (tcon->ses->sign) - vneg_inbuf.SecurityMode = + pneg_inbuf->SecurityMode = cpu_to_le16(SMB2_NEGOTIATE_SIGNING_REQUIRED); else if (global_secflags & CIFSSEC_MAY_SIGN) - vneg_inbuf.SecurityMode = + pneg_inbuf->SecurityMode = cpu_to_le16(SMB2_NEGOTIATE_SIGNING_ENABLED); else - vneg_inbuf.SecurityMode = 0; + pneg_inbuf->SecurityMode = 0;
if (strcmp(tcon->ses->server->vals->version_string, SMB3ANY_VERSION_STRING) == 0) { - vneg_inbuf.Dialects[0] = cpu_to_le16(SMB30_PROT_ID); - vneg_inbuf.Dialects[1] = cpu_to_le16(SMB302_PROT_ID); - vneg_inbuf.DialectCount = cpu_to_le16(2); + pneg_inbuf->Dialects[0] = cpu_to_le16(SMB30_PROT_ID); + pneg_inbuf->Dialects[1] = cpu_to_le16(SMB302_PROT_ID); + pneg_inbuf->DialectCount = cpu_to_le16(2); /* structure is big enough for 3 dialects, sending only 2 */ - inbuflen = sizeof(struct validate_negotiate_info_req) - 2; + inbuflen = sizeof(*pneg_inbuf) - + sizeof(pneg_inbuf->Dialects[0]); } else if (strcmp(tcon->ses->server->vals->version_string, SMBDEFAULT_VERSION_STRING) == 0) { - vneg_inbuf.Dialects[0] = cpu_to_le16(SMB21_PROT_ID); - vneg_inbuf.Dialects[1] = cpu_to_le16(SMB30_PROT_ID); - vneg_inbuf.Dialects[2] = cpu_to_le16(SMB302_PROT_ID); - vneg_inbuf.DialectCount = cpu_to_le16(3); + pneg_inbuf->Dialects[0] = cpu_to_le16(SMB21_PROT_ID); + pneg_inbuf->Dialects[1] = cpu_to_le16(SMB30_PROT_ID); + pneg_inbuf->Dialects[2] = cpu_to_le16(SMB302_PROT_ID); + pneg_inbuf->DialectCount = cpu_to_le16(3); /* structure is big enough for 3 dialects */ - inbuflen = sizeof(struct validate_negotiate_info_req); + inbuflen = sizeof(*pneg_inbuf); } else { /* otherwise specific dialect was requested */ - vneg_inbuf.Dialects[0] = + pneg_inbuf->Dialects[0] = cpu_to_le16(tcon->ses->server->vals->protocol_id); - vneg_inbuf.DialectCount = cpu_to_le16(1); + pneg_inbuf->DialectCount = cpu_to_le16(1); /* structure is big enough for 3 dialects, sending only 1 */ - inbuflen = sizeof(struct validate_negotiate_info_req) - 4; + inbuflen = sizeof(*pneg_inbuf) - + sizeof(pneg_inbuf->Dialects[0]) * 2; }
rc = SMB2_ioctl(xid, tcon, NO_FILE_ID, NO_FILE_ID, FSCTL_VALIDATE_NEGOTIATE_INFO, true /* is_fsctl */, - (char *)&vneg_inbuf, sizeof(struct validate_negotiate_info_req), - (char **)&pneg_rsp, &rsplen); + (char *)pneg_inbuf, inbuflen, (char **)&pneg_rsp, &rsplen);
if (rc != 0) { cifs_dbg(VFS, "validate protocol negotiate failed: %d\n", rc); - return -EIO; + rc = -EIO; + goto out_free_inbuf; }
- if (rsplen != sizeof(struct validate_negotiate_info_rsp)) { + rc = -EIO; + if (rsplen != sizeof(*pneg_rsp)) { cifs_dbg(VFS, "invalid protocol negotiate response size: %d\n", rsplen);
/* relax check since Mac returns max bufsize allowed on ioctl */ - if ((rsplen > CIFSMaxBufSize) - || (rsplen < sizeof(struct validate_negotiate_info_rsp))) - goto err_rsp_free; + if (rsplen > CIFSMaxBufSize || rsplen < sizeof(*pneg_rsp)) + goto out_free_rsp; }
/* check validate negotiate info response matches what we got earlier */ @@ -729,15 +735,17 @@ int smb3_validate_negotiate(const unsign goto vneg_out;
/* validate negotiate successful */ + rc = 0; cifs_dbg(FYI, "validate negotiate info successful\n"); - kfree(pneg_rsp); - return 0; + goto out_free_rsp;
vneg_out: cifs_dbg(VFS, "protocol revalidation - security settings mismatch\n"); -err_rsp_free: +out_free_rsp: kfree(pneg_rsp); - return -EIO; +out_free_inbuf: + kfree(pneg_inbuf); + return rc; }
enum securityEnum
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Paulo Alcantara palcantara@suse.de
[ Upstream commit ae2cd7fb478b8da707906ee1706ae1379968a8f9 ]
As per listxattr(2):
On success, a nonnegative number is returned indicating the size of the extended attribute name list. On failure, -1 is returned and errno is set appropriately.
In SMB1, when the server returns an empty EA list through a listxattr(), it will correctly return 0 as there are no EAs for the given file.
However, in SMB2+, it returns -ENODATA in listxattr() which is wrong since the request and response were sent successfully, although there's no actual EA for the given file.
This patch fixes listxattr() for SMB2+ by returning 0 in cifs_listxattr() when the server returns an empty list of EAs.
Signed-off-by: Paulo Alcantara palcantara@suse.de Reviewed-by: Aurelien Aptel aaptel@suse.com Signed-off-by: Steve French smfrench@gmail.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- fs/cifs/smb2ops.c | 6 ++++++ 1 file changed, 6 insertions(+)
--- a/fs/cifs/smb2ops.c +++ b/fs/cifs/smb2ops.c @@ -589,9 +589,15 @@ smb2_query_eas(const unsigned int xid, s
SMB2_close(xid, tcon, fid.persistent_fid, fid.volatile_fid);
+ /* + * If ea_name is NULL (listxattr) and there are no EAs, return 0 as it's + * not an error. Otherwise, the specified ea_name was not found. + */ if (!rc) rc = move_smb2_ea_to_cifs(ea_data, buf_size, smb2_data, SMB2_MAX_EA_BUF, ea_name); + else if (!ea_name && rc == -ENODATA) + rc = 0;
kfree(smb2_data); return rc;
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Ying Xue ying.xue@windriver.com
[ Upstream commit 94f6a80c0c11828cb7b3d79294459dd8d761ca89 ]
When we get link properties through netlink interface with tipc_nl_node_get_link(), we don't validate TIPC_NLA_LINK_NAME attribute at all, instead we directly use it. As a consequence, KMSAN detected the TIPC_NLA_LINK_NAME attribute was an uninitialized value, and then posted the following complaint:
================================================================== BUG: KMSAN: uninit-value in strcmp+0xf7/0x160 lib/string.c:329 CPU: 1 PID: 4527 Comm: syz-executor655 Not tainted 4.16.0+ #87 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x185/0x1d0 lib/dump_stack.c:53 kmsan_report+0x142/0x240 mm/kmsan/kmsan.c:1067 __msan_warning_32+0x6c/0xb0 mm/kmsan/kmsan_instr.c:683 strcmp+0xf7/0x160 lib/string.c:329 tipc_nl_node_get_link+0x220/0x6f0 net/tipc/node.c:1881 genl_family_rcv_msg net/netlink/genetlink.c:599 [inline] genl_rcv_msg+0x1686/0x1810 net/netlink/genetlink.c:624 netlink_rcv_skb+0x378/0x600 net/netlink/af_netlink.c:2447 genl_rcv+0x63/0x80 net/netlink/genetlink.c:635 netlink_unicast_kernel net/netlink/af_netlink.c:1311 [inline] netlink_unicast+0x166b/0x1740 net/netlink/af_netlink.c:1337 netlink_sendmsg+0x1048/0x1310 net/netlink/af_netlink.c:1900 sock_sendmsg_nosec net/socket.c:630 [inline] sock_sendmsg net/socket.c:640 [inline] ___sys_sendmsg+0xec0/0x1310 net/socket.c:2046 __sys_sendmsg net/socket.c:2080 [inline] SYSC_sendmsg+0x2a3/0x3d0 net/socket.c:2091 SyS_sendmsg+0x54/0x80 net/socket.c:2087 do_syscall_64+0x309/0x430 arch/x86/entry/common.c:287 entry_SYSCALL_64_after_hwframe+0x3d/0xa2 RIP: 0033:0x445589 RSP: 002b:00007fb7ee66cdb8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00000000006dac24 RCX: 0000000000445589 RDX: 0000000000000000 RSI: 0000000020023000 RDI: 0000000000000003 RBP: 00000000006dac20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fffa2bf3f3f R14: 00007fb7ee66d9c0 R15: 0000000000000001
Uninit was created at: kmsan_save_stack_with_flags mm/kmsan/kmsan.c:278 [inline] kmsan_internal_poison_shadow+0xb8/0x1b0 mm/kmsan/kmsan.c:188 kmsan_kmalloc+0x94/0x100 mm/kmsan/kmsan.c:314 kmsan_slab_alloc+0x11/0x20 mm/kmsan/kmsan.c:321 slab_post_alloc_hook mm/slab.h:445 [inline] slab_alloc_node mm/slub.c:2737 [inline] __kmalloc_node_track_caller+0xaed/0x11c0 mm/slub.c:4369 __kmalloc_reserve net/core/skbuff.c:138 [inline] __alloc_skb+0x2cf/0x9f0 net/core/skbuff.c:206 alloc_skb include/linux/skbuff.h:984 [inline] netlink_alloc_large_skb net/netlink/af_netlink.c:1183 [inline] netlink_sendmsg+0x9a6/0x1310 net/netlink/af_netlink.c:1875 sock_sendmsg_nosec net/socket.c:630 [inline] sock_sendmsg net/socket.c:640 [inline] ___sys_sendmsg+0xec0/0x1310 net/socket.c:2046 __sys_sendmsg net/socket.c:2080 [inline] SYSC_sendmsg+0x2a3/0x3d0 net/socket.c:2091 SyS_sendmsg+0x54/0x80 net/socket.c:2087 do_syscall_64+0x309/0x430 arch/x86/entry/common.c:287 entry_SYSCALL_64_after_hwframe+0x3d/0xa2 ==================================================================
To quiet the complaint, TIPC_NLA_LINK_NAME attribute has been validated in tipc_nl_node_get_link() before it's used.
Reported-by: syzbot+df0257c92ffd4fcc58cd@syzkaller.appspotmail.com Signed-off-by: Ying Xue ying.xue@windriver.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- net/tipc/node.c | 15 +++++++++++++-- 1 file changed, 13 insertions(+), 2 deletions(-)
--- a/net/tipc/node.c +++ b/net/tipc/node.c @@ -1863,6 +1863,7 @@ out: int tipc_nl_node_get_link(struct sk_buff *skb, struct genl_info *info) { struct net *net = genl_info_net(info); + struct nlattr *attrs[TIPC_NLA_LINK_MAX + 1]; struct tipc_nl_msg msg; char *name; int err; @@ -1870,9 +1871,19 @@ int tipc_nl_node_get_link(struct sk_buff msg.portid = info->snd_portid; msg.seq = info->snd_seq;
- if (!info->attrs[TIPC_NLA_LINK_NAME]) + if (!info->attrs[TIPC_NLA_LINK]) return -EINVAL; - name = nla_data(info->attrs[TIPC_NLA_LINK_NAME]); + + err = nla_parse_nested(attrs, TIPC_NLA_LINK_MAX, + info->attrs[TIPC_NLA_LINK], + tipc_nl_link_policy, info->extack); + if (err) + return err; + + if (!attrs[TIPC_NLA_LINK_NAME]) + return -EINVAL; + + name = nla_data(attrs[TIPC_NLA_LINK_NAME]);
msg.skb = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); if (!msg.skb)
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Michal Kalderon Michal.Kalderon@cavium.com
[ Upstream commit af6858ee423a309d93054c361c61099b8eb12bbf ]
If qede driver was loaded on a device configured for iWARP the l2 mutex wouldn't be allocated, and some l2 related resources wouldn't be freed.
fixes: c851a9dc4359 ("qed: Introduce iWARP personality") Signed-off-by: Michal Kalderon Michal.Kalderon@cavium.com Signed-off-by: Sudarsana Kalluru Sudarsana.Kalluru@cavium.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/net/ethernet/qlogic/qed/qed_l2.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-)
--- a/drivers/net/ethernet/qlogic/qed/qed_l2.c +++ b/drivers/net/ethernet/qlogic/qed/qed_l2.c @@ -115,8 +115,7 @@ int qed_l2_alloc(struct qed_hwfn *p_hwfn
void qed_l2_setup(struct qed_hwfn *p_hwfn) { - if (p_hwfn->hw_info.personality != QED_PCI_ETH && - p_hwfn->hw_info.personality != QED_PCI_ETH_ROCE) + if (!QED_IS_L2_PERSONALITY(p_hwfn)) return;
mutex_init(&p_hwfn->p_l2_info->lock); @@ -126,8 +125,7 @@ void qed_l2_free(struct qed_hwfn *p_hwfn { u32 i;
- if (p_hwfn->hw_info.personality != QED_PCI_ETH && - p_hwfn->hw_info.personality != QED_PCI_ETH_ROCE) + if (!QED_IS_L2_PERSONALITY(p_hwfn)) return;
if (!p_hwfn->p_l2_info)
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Michal Kalderon Michal.Kalderon@cavium.com
[ Upstream commit 090477e4acb31c5dd674940c7c01d4f16bd1ac41 ]
A previous commit 4609adc27175 ("qede: Fix qedr link update") added a flow that could allocate rdma event objects from an interrupt path (link notification). Therefore the kzalloc call should be done with GFP_ATOMIC.
fixes: 4609adc27175 ("qede: Fix qedr link update") Signed-off-by: Michal Kalderon Michal.Kalderon@cavium.com Signed-off-by: Sudarsana Kalluru Sudarsana.Kalluru@cavium.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/net/ethernet/qlogic/qede/qede_rdma.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/net/ethernet/qlogic/qede/qede_rdma.c +++ b/drivers/net/ethernet/qlogic/qede/qede_rdma.c @@ -238,7 +238,7 @@ qede_rdma_get_free_event_node(struct qed }
if (!found) { - event_node = kzalloc(sizeof(*event_node), GFP_KERNEL); + event_node = kzalloc(sizeof(*event_node), GFP_ATOMIC); if (!event_node) { DP_NOTICE(edev, "qedr: Could not allocate memory for rdma work\n");
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Ganesh Goudar ganeshgr@chelsio.com
[ Upstream commit aca06eafd09f48ca4d97f3c0b2a12c8d631116f0 ]
copy mbox size to adapter instances of PF0-3 to avoid mbox log overflow. This fixes the possible protection fault.
Fixes: baf5086840ab ("cxgb4: restructure VF mgmt code") Signed-off-by: Casey Leedom leedom@chelsio.com Signed-off-by: Ganesh Goudar ganeshgr@chelsio.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-)
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c +++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c @@ -5191,6 +5191,7 @@ static int init_one(struct pci_dev *pdev } spin_lock_init(&adapter->mbox_lock); INIT_LIST_HEAD(&adapter->mlist.list); + adapter->mbox_log->size = T4_OS_LOG_MBOX_CMDS; pci_set_drvdata(pdev, adapter);
if (func != ent->driver_data) { @@ -5225,8 +5226,6 @@ static int init_one(struct pci_dev *pdev goto out_free_adapter; }
- adapter->mbox_log->size = T4_OS_LOG_MBOX_CMDS; - /* PCI device has been enabled */ adapter->flags |= DEV_ENABLED; memset(adapter->chan_map, 0xff, sizeof(adapter->chan_map));
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: David Howells dhowells@redhat.com
[ Upstream commit c54e43d752c7187595c8c62a231e0b0d53c7fded ]
The expect_rx_by call timeout is supposed to be set when a call is started to indicate that we need to receive a packet by that point. This is currently put back every time we receive a packet, but it isn't started when we first send a packet. Without this, the call may wait forever if the server doesn't deign to reply.
Fix this by setting the timeout upon a successful UDP sendmsg call for the first DATA packet. The timeout is initiated only for initial transmission and not for subsequent retries as we don't want the retry mechanism to extend the timeout indefinitely.
Fixes: a158bdd3247b ("rxrpc: Fix call timeouts") Reported-by: Marc Dionne marc.dionne@auristor.com Signed-off-by: David Howells dhowells@redhat.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- net/rxrpc/ar-internal.h | 1 + net/rxrpc/input.c | 2 +- net/rxrpc/output.c | 11 +++++++++++ net/rxrpc/sendmsg.c | 10 ++++++++++ 4 files changed, 23 insertions(+), 1 deletion(-)
--- a/net/rxrpc/ar-internal.h +++ b/net/rxrpc/ar-internal.h @@ -464,6 +464,7 @@ enum rxrpc_call_flag { RXRPC_CALL_SEND_PING, /* A ping will need to be sent */ RXRPC_CALL_PINGING, /* Ping in process */ RXRPC_CALL_RETRANS_TIMEOUT, /* Retransmission due to timeout occurred */ + RXRPC_CALL_BEGAN_RX_TIMER, /* We began the expect_rx_by timer */ };
/* --- a/net/rxrpc/input.c +++ b/net/rxrpc/input.c @@ -971,7 +971,7 @@ static void rxrpc_input_call_packet(stru if (timo) { unsigned long now = jiffies, expect_rx_by;
- expect_rx_by = jiffies + timo; + expect_rx_by = now + timo; WRITE_ONCE(call->expect_rx_by, expect_rx_by); rxrpc_reduce_call_timer(call, expect_rx_by, now, rxrpc_timer_set_for_normal); --- a/net/rxrpc/output.c +++ b/net/rxrpc/output.c @@ -407,6 +407,17 @@ done: rxrpc_timer_set_for_lost_ack); } } + + if (sp->hdr.seq == 1 && + !test_and_set_bit(RXRPC_CALL_BEGAN_RX_TIMER, + &call->flags)) { + unsigned long nowj = jiffies, expect_rx_by; + + expect_rx_by = nowj + call->next_rx_timo; + WRITE_ONCE(call->expect_rx_by, expect_rx_by); + rxrpc_reduce_call_timer(call, expect_rx_by, nowj, + rxrpc_timer_set_for_normal); + } }
rxrpc_set_keepalive(call); --- a/net/rxrpc/sendmsg.c +++ b/net/rxrpc/sendmsg.c @@ -223,6 +223,15 @@ static void rxrpc_queue_packet(struct rx
ret = rxrpc_send_data_packet(call, skb, false); if (ret < 0) { + switch (ret) { + case -ENETUNREACH: + case -EHOSTUNREACH: + case -ECONNREFUSED: + rxrpc_set_call_completion(call, + RXRPC_CALL_LOCAL_ERROR, + 0, ret); + goto out; + } _debug("need instant resend %d", ret); rxrpc_instant_resend(call, ix); } else { @@ -241,6 +250,7 @@ static void rxrpc_queue_packet(struct rx rxrpc_timer_set_for_send); }
+out: rxrpc_free_skb(skb, rxrpc_skb_tx_freed); _leave(""); }
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: David Howells dhowells@redhat.com
[ Upstream commit f2aeed3a591ff29a82495eeaa92ac4780bad7487 ]
AF_RXRPC tries to turn on IP_RECVERR and IP_MTU_DISCOVER on the UDP socket it just opened for communications with the outside world, regardless of the type of socket. Unfortunately, this doesn't work with an AF_INET6 socket.
Fix this by turning on IPV6_RECVERR and IPV6_MTU_DISCOVER instead if the socket is of the AF_INET6 family.
Without this, kAFS server and address rotation doesn't work correctly because the algorithm doesn't detect received network errors.
Fixes: 75b54cb57ca3 ("rxrpc: Add IPv6 support") Signed-off-by: David Howells dhowells@redhat.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- net/rxrpc/local_object.c | 57 ++++++++++++++++++++++++++++++++++------------- 1 file changed, 42 insertions(+), 15 deletions(-)
--- a/net/rxrpc/local_object.c +++ b/net/rxrpc/local_object.c @@ -133,22 +133,49 @@ static int rxrpc_open_socket(struct rxrp } }
- /* we want to receive ICMP errors */ - opt = 1; - ret = kernel_setsockopt(local->socket, SOL_IP, IP_RECVERR, - (char *) &opt, sizeof(opt)); - if (ret < 0) { - _debug("setsockopt failed"); - goto error; - } + switch (local->srx.transport.family) { + case AF_INET: + /* we want to receive ICMP errors */ + opt = 1; + ret = kernel_setsockopt(local->socket, SOL_IP, IP_RECVERR, + (char *) &opt, sizeof(opt)); + if (ret < 0) { + _debug("setsockopt failed"); + goto error; + } + + /* we want to set the don't fragment bit */ + opt = IP_PMTUDISC_DO; + ret = kernel_setsockopt(local->socket, SOL_IP, IP_MTU_DISCOVER, + (char *) &opt, sizeof(opt)); + if (ret < 0) { + _debug("setsockopt failed"); + goto error; + } + break; + + case AF_INET6: + /* we want to receive ICMP errors */ + opt = 1; + ret = kernel_setsockopt(local->socket, SOL_IPV6, IPV6_RECVERR, + (char *) &opt, sizeof(opt)); + if (ret < 0) { + _debug("setsockopt failed"); + goto error; + } + + /* we want to set the don't fragment bit */ + opt = IPV6_PMTUDISC_DO; + ret = kernel_setsockopt(local->socket, SOL_IPV6, IPV6_MTU_DISCOVER, + (char *) &opt, sizeof(opt)); + if (ret < 0) { + _debug("setsockopt failed"); + goto error; + } + break;
- /* we want to set the don't fragment bit */ - opt = IP_PMTUDISC_DO; - ret = kernel_setsockopt(local->socket, SOL_IP, IP_MTU_DISCOVER, - (char *) &opt, sizeof(opt)); - if (ret < 0) { - _debug("setsockopt failed"); - goto error; + default: + BUG(); }
/* set the socket up */
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: David Howells dhowells@redhat.com
[ Upstream commit 93864fc3ffcc4bf70e96cfb5cc6e941630419ad0 ]
Fix the kernel call initiation to set the minimum security level for kernel initiated calls (such as from kAFS) from the sockopt value.
Fixes: 19ffa01c9c45 ("rxrpc: Use structs to hold connection params and protocol info") Signed-off-by: David Howells dhowells@redhat.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- net/rxrpc/af_rxrpc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/net/rxrpc/af_rxrpc.c +++ b/net/rxrpc/af_rxrpc.c @@ -310,7 +310,7 @@ struct rxrpc_call *rxrpc_kernel_begin_ca memset(&cp, 0, sizeof(cp)); cp.local = rx->local; cp.key = key; - cp.security_level = 0; + cp.security_level = rx->min_sec_level; cp.exclusive = false; cp.upgrade = upgrade; cp.service_id = srx->srx_service;
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Nikita Yushchenko nikita.yoush@cogentembedded.com
[ Upstream commit 6d3299aef7df7225ecff653feedafb5d1646998b ]
This fixes errors in RDU1 device tree that cause touch screens not working.
Fixes: ceef0396f367 ("ARM: dts: imx: add ZII RDU1 board") Signed-off-by: Nikita Yushchenko nikita.yoush@cogentembedded.com Reviewed-by: Fabio Estevam fabio.estevam@nxp.com Signed-off-by: Shawn Guo shawnguo@kernel.org Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/arm/boot/dts/imx51-zii-rdu1.dts | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-)
--- a/arch/arm/boot/dts/imx51-zii-rdu1.dts +++ b/arch/arm/boot/dts/imx51-zii-rdu1.dts @@ -518,7 +518,7 @@ };
touchscreen@20 { - compatible = "syna,rmi4_i2c"; + compatible = "syna,rmi4-i2c"; reg = <0x20>; pinctrl-names = "default"; pinctrl-0 = <&pinctrl_ts>; @@ -536,8 +536,8 @@
rmi4-f11@11 { reg = <0x11>; - touch-inverted-y; - touch-swapped-x-y; + touchscreen-inverted-y; + touchscreen-swapped-x-y; syna,sensor-type = <1>; }; };
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Marian Rotariu mrotariu@bitdefender.com
[ Upstream commit 6356ee0c9602004e0a3b4b2dad68ee2ee9385b17 ]
The IP increment should be done after the hypercall emulation, after calling the various handlers. In this way, these handlers can accurately identify the the IP of the VMCALL if they need it.
This patch keeps the same functionality for the Hyper-V handler which does not use the return code of the standard kvm_skip_emulated_instruction() call.
Signed-off-by: Marian Rotariu mrotariu@bitdefender.com [Hyper-V hypercalls also need kvm_skip_emulated_instruction() - Paolo] Signed-off-by: Paolo Bonzini pbonzini@redhat.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/x86/kvm/hyperv.c | 2 +- arch/x86/kvm/x86.c | 19 +++++++++++-------- 2 files changed, 12 insertions(+), 9 deletions(-)
--- a/arch/x86/kvm/hyperv.c +++ b/arch/x86/kvm/hyperv.c @@ -1223,7 +1223,7 @@ static int kvm_hv_hypercall_complete_use struct kvm_run *run = vcpu->run;
kvm_hv_hypercall_set_result(vcpu, run->hyperv.u.hcall.result); - return 1; + return kvm_skip_emulated_instruction(vcpu); }
int kvm_hv_hypercall(struct kvm_vcpu *vcpu) --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -6553,12 +6553,13 @@ void kvm_vcpu_deactivate_apicv(struct kv int kvm_emulate_hypercall(struct kvm_vcpu *vcpu) { unsigned long nr, a0, a1, a2, a3, ret; - int op_64_bit, r; + int op_64_bit;
- r = kvm_skip_emulated_instruction(vcpu); - - if (kvm_hv_hypercall_enabled(vcpu->kvm)) - return kvm_hv_hypercall(vcpu); + if (kvm_hv_hypercall_enabled(vcpu->kvm)) { + if (!kvm_hv_hypercall(vcpu)) + return 0; + goto out; + }
nr = kvm_register_read(vcpu, VCPU_REGS_RAX); a0 = kvm_register_read(vcpu, VCPU_REGS_RBX); @@ -6579,7 +6580,7 @@ int kvm_emulate_hypercall(struct kvm_vcp
if (kvm_x86_ops->get_cpl(vcpu) != 0) { ret = -KVM_EPERM; - goto out; + goto out_error; }
switch (nr) { @@ -6599,12 +6600,14 @@ int kvm_emulate_hypercall(struct kvm_vcp ret = -KVM_ENOSYS; break; } -out: +out_error: if (!op_64_bit) ret = (u32)ret; kvm_register_write(vcpu, VCPU_REGS_RAX, ret); + +out: ++vcpu->stat.hypercalls; - return r; + return kvm_skip_emulated_instruction(vcpu); } EXPORT_SYMBOL_GPL(kvm_emulate_hypercall);
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Leo Yan leo.yan@linaro.org
[ Upstream commit 46d53620044f7b574c0f3216f8b4f2ce3559ce31 ]
CoreSight doesn't allocate thread structure for unknown_thread in ETM auxtrace, so unknown_thread is NULL pointer. If the perf data doesn't contain valid tid and then cs_etm__mem_access() uses unknown_thread instead as thread handler, this results in a segmentation fault when thread__find_addr_map() accesses the thread handler.
This commit creates a new thread data which is used by unknown_thread, so CoreSight tracing can roll back to use unknown_thread if perf data doesn't include valid thread info. This commit also releases thread data for initialization failure case and for normal auxtrace free flow.
Signed-off-by: Leo Yan leo.yan@linaro.org Acked-by: Mathieu Poirier mathieu.poirier@linaro.org Cc: Alexander Shishkin alexander.shishkin@linux.intel.com Cc: Jiri Olsa jolsa@redhat.com Cc: Namhyung Kim namhyung@kernel.org Cc: Peter Zijlstra peterz@infradead.org Cc: linux-arm-kernel@lists.infradead.org Link: http://lkml.kernel.org/r/1525924920-4381-1-git-send-email-leo.yan@linaro.org Signed-off-by: Arnaldo Carvalho de Melo acme@redhat.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- tools/perf/util/cs-etm.c | 24 ++++++++++++++++++++++-- 1 file changed, 22 insertions(+), 2 deletions(-)
--- a/tools/perf/util/cs-etm.c +++ b/tools/perf/util/cs-etm.c @@ -212,6 +212,7 @@ static void cs_etm__free(struct perf_ses for (i = 0; i < aux->num_cpu; i++) zfree(&aux->metadata[i]);
+ thread__zput(aux->unknown_thread); zfree(&aux->metadata); zfree(&aux); } @@ -980,6 +981,23 @@ int cs_etm__process_auxtrace_info(union etm->auxtrace.free = cs_etm__free; session->auxtrace = &etm->auxtrace;
+ etm->unknown_thread = thread__new(999999999, 999999999); + if (!etm->unknown_thread) + goto err_free_queues; + + /* + * Initialize list node so that at thread__zput() we can avoid + * segmentation fault at list_del_init(). + */ + INIT_LIST_HEAD(&etm->unknown_thread->node); + + err = thread__set_comm(etm->unknown_thread, "unknown", 0); + if (err) + goto err_delete_thread; + + if (thread__init_map_groups(etm->unknown_thread, etm->machine)) + goto err_delete_thread; + if (dump_trace) { cs_etm__print_auxtrace_info(auxtrace_info->priv, num_cpu); return 0; @@ -994,16 +1012,18 @@ int cs_etm__process_auxtrace_info(union
err = cs_etm__synth_events(etm, session); if (err) - goto err_free_queues; + goto err_delete_thread;
err = auxtrace_queues__process_index(&etm->queues, session); if (err) - goto err_free_queues; + goto err_delete_thread;
etm->data_queued = etm->queues.populated;
return 0;
+err_delete_thread: + thread__zput(etm->unknown_thread); err_free_queues: auxtrace_queues__free(&etm->queues); session->auxtrace = NULL;
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Rob Herring robh@kernel.org
[ Upstream commit ac21fc2dcb405cf250ad3f1228f64f64930d9211 ]
Commit 0fa1c579349f ("of/fdt: use memblock_virt_alloc for early alloc") inadvertently switched the DT unflattening allocations from memblock to bootmem which doesn't work because the unflattening happens before bootmem is initialized. Swapping the order of bootmem init and unflattening could also fix this, but removing bootmem is desired. So enable NO_BOOTMEM on SH like other architectures have done.
Fixes: 0fa1c579349f ("of/fdt: use memblock_virt_alloc for early alloc") Reported-by: Rich Felker dalias@libc.org Cc: Yoshinori Sato ysato@users.sourceforge.jp Signed-off-by: Rob Herring robh@kernel.org Signed-off-by: Rich Felker dalias@libc.org Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/sh/Kconfig | 1 arch/sh/kernel/setup.c | 1 arch/sh/mm/init.c | 68 ++++--------------------------------------------- arch/sh/mm/numa.c | 19 ------------- 4 files changed, 7 insertions(+), 82 deletions(-)
--- a/arch/sh/Kconfig +++ b/arch/sh/Kconfig @@ -9,6 +9,7 @@ config SUPERH select HAVE_IDE if HAS_IOPORT_MAP select HAVE_MEMBLOCK select HAVE_MEMBLOCK_NODE_MAP + select NO_BOOTMEM select ARCH_DISCARD_MEMBLOCK select HAVE_OPROFILE select HAVE_GENERIC_DMA_COHERENT --- a/arch/sh/kernel/setup.c +++ b/arch/sh/kernel/setup.c @@ -11,7 +11,6 @@ #include <linux/ioport.h> #include <linux/init.h> #include <linux/initrd.h> -#include <linux/bootmem.h> #include <linux/console.h> #include <linux/root_dev.h> #include <linux/utsname.h> --- a/arch/sh/mm/init.c +++ b/arch/sh/mm/init.c @@ -211,59 +211,15 @@ void __init allocate_pgdat(unsigned int
NODE_DATA(nid) = __va(phys); memset(NODE_DATA(nid), 0, sizeof(struct pglist_data)); - - NODE_DATA(nid)->bdata = &bootmem_node_data[nid]; #endif
NODE_DATA(nid)->node_start_pfn = start_pfn; NODE_DATA(nid)->node_spanned_pages = end_pfn - start_pfn; }
-static void __init bootmem_init_one_node(unsigned int nid) -{ - unsigned long total_pages, paddr; - unsigned long end_pfn; - struct pglist_data *p; - - p = NODE_DATA(nid); - - /* Nothing to do.. */ - if (!p->node_spanned_pages) - return; - - end_pfn = pgdat_end_pfn(p); - - total_pages = bootmem_bootmap_pages(p->node_spanned_pages); - - paddr = memblock_alloc(total_pages << PAGE_SHIFT, PAGE_SIZE); - if (!paddr) - panic("Can't allocate bootmap for nid[%d]\n", nid); - - init_bootmem_node(p, paddr >> PAGE_SHIFT, p->node_start_pfn, end_pfn); - - free_bootmem_with_active_regions(nid, end_pfn); - - /* - * XXX Handle initial reservations for the system memory node - * only for the moment, we'll refactor this later for handling - * reservations in other nodes. - */ - if (nid == 0) { - struct memblock_region *reg; - - /* Reserve the sections we're already using. */ - for_each_memblock(reserved, reg) { - reserve_bootmem(reg->base, reg->size, BOOTMEM_DEFAULT); - } - } - - sparse_memory_present_with_active_regions(nid); -} - static void __init do_init_bootmem(void) { struct memblock_region *reg; - int i;
/* Add active regions with valid PFNs. */ for_each_memblock(memory, reg) { @@ -279,9 +235,12 @@ static void __init do_init_bootmem(void)
plat_mem_setup();
- for_each_online_node(i) - bootmem_init_one_node(i); + for_each_memblock(memory, reg) { + int nid = memblock_get_region_node(reg);
+ memory_present(nid, memblock_region_memory_base_pfn(reg), + memblock_region_memory_end_pfn(reg)); + } sparse_init(); }
@@ -322,7 +281,6 @@ void __init paging_init(void) { unsigned long max_zone_pfns[MAX_NR_ZONES]; unsigned long vaddr, end; - int nid;
sh_mv.mv_mem_init();
@@ -377,21 +335,7 @@ void __init paging_init(void) kmap_coherent_init();
memset(max_zone_pfns, 0, sizeof(max_zone_pfns)); - - for_each_online_node(nid) { - pg_data_t *pgdat = NODE_DATA(nid); - unsigned long low, start_pfn; - - start_pfn = pgdat->bdata->node_min_pfn; - low = pgdat->bdata->node_low_pfn; - - if (max_zone_pfns[ZONE_NORMAL] < low) - max_zone_pfns[ZONE_NORMAL] = low; - - printk("Node %u: start_pfn = 0x%lx, low = 0x%lx\n", - nid, start_pfn, low); - } - + max_zone_pfns[ZONE_NORMAL] = max_low_pfn; free_area_init_nodes(max_zone_pfns); }
--- a/arch/sh/mm/numa.c +++ b/arch/sh/mm/numa.c @@ -8,7 +8,6 @@ * for more details. */ #include <linux/module.h> -#include <linux/bootmem.h> #include <linux/memblock.h> #include <linux/mm.h> #include <linux/numa.h> @@ -26,9 +25,7 @@ EXPORT_SYMBOL_GPL(node_data); */ void __init setup_bootmem_node(int nid, unsigned long start, unsigned long end) { - unsigned long bootmap_pages; unsigned long start_pfn, end_pfn; - unsigned long bootmem_paddr;
/* Don't allow bogus node assignment */ BUG_ON(nid >= MAX_NUMNODES || nid <= 0); @@ -48,25 +45,9 @@ void __init setup_bootmem_node(int nid, SMP_CACHE_BYTES, end)); memset(NODE_DATA(nid), 0, sizeof(struct pglist_data));
- NODE_DATA(nid)->bdata = &bootmem_node_data[nid]; NODE_DATA(nid)->node_start_pfn = start_pfn; NODE_DATA(nid)->node_spanned_pages = end_pfn - start_pfn;
- /* Node-local bootmap */ - bootmap_pages = bootmem_bootmap_pages(end_pfn - start_pfn); - bootmem_paddr = memblock_alloc_base(bootmap_pages << PAGE_SHIFT, - PAGE_SIZE, end); - init_bootmem_node(NODE_DATA(nid), bootmem_paddr >> PAGE_SHIFT, - start_pfn, end_pfn); - - free_bootmem_with_active_regions(nid, end_pfn); - - /* Reserve the pgdat and bootmap space with the bootmem allocator */ - reserve_bootmem_node(NODE_DATA(nid), start_pfn << PAGE_SHIFT, - sizeof(struct pglist_data), BOOTMEM_DEFAULT); - reserve_bootmem_node(NODE_DATA(nid), bootmem_paddr, - bootmap_pages << PAGE_SHIFT, BOOTMEM_DEFAULT); - /* It's up */ node_set_online(nid);
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Emil Tantilov emil.s.tantilov@intel.com
[ Upstream commit bbb2707623f3ccc48695da2433f06d7c38193451 ]
Add check for unsupported module and return the error code. This fixes a Coverity hit due to unused return status from setup_sfp.
Signed-off-by: Emil Tantilov emil.s.tantilov@intel.com Tested-by: Andrew Bowers andrewx.bowers@intel.com Signed-off-by: Jeff Kirsher jeffrey.t.kirsher@intel.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/net/ethernet/intel/ixgbe/ixgbe_x550.c | 3 +++ 1 file changed, 3 insertions(+)
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_x550.c +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_x550.c @@ -3427,6 +3427,9 @@ static s32 ixgbe_reset_hw_X550em(struct hw->phy.sfp_setup_needed = false; }
+ if (status == IXGBE_ERR_SFP_NOT_SUPPORTED) + return status; + /* Reset PHY */ if (!hw->phy.reset_disable && hw->phy.ops.reset) hw->phy.ops.reset(hw);
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Colin Ian King colin.king@canonical.com
[ Upstream commit c89ebb968f04c71e16e86c91caeacb045dc8f908 ]
The error clean up path kfree's adapter->ipsec and should be instead kfree'ing ipsec. Fix this. Also, the err1 error exit path does not need to kfree ipsec because this failure path was for the failed allocation of ipsec.
Detected by CoverityScan, CID#146424 ("Resource Leak")
Fixes: 63a67fe229ea ("ixgbe: add ipsec offload add and remove SA") Signed-off-by: Colin Ian King colin.king@canonical.com Acked-by: Shannon Nelson shannon.nelson@oracle.com Tested-by: Andrew Bowers andrewx.bowers@intel.com Signed-off-by: Jeff Kirsher jeffrey.t.kirsher@intel.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/net/ethernet/intel/ixgbe/ixgbe_ipsec.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_ipsec.c +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_ipsec.c @@ -918,8 +918,8 @@ err2: kfree(ipsec->ip_tbl); kfree(ipsec->rx_tbl); kfree(ipsec->tx_tbl); + kfree(ipsec); err1: - kfree(adapter->ipsec); netdev_err(adapter->netdev, "Unable to allocate memory for SA tables"); }
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Roman Mashak mrv@mojatatu.com
[ Upstream commit af5d01842fe1fbfb9f5e1c1d957ba02ab6f4569a ]
When application fails to pass flags in netlink TLV for a new skbedit action, the kernel results in the following oops:
[ 8.307732] BUG: unable to handle kernel paging request at 0000000000021130 [ 8.309167] PGD 80000000193d1067 P4D 80000000193d1067 PUD 180e0067 PMD 0 [ 8.310595] Oops: 0000 [#1] SMP PTI [ 8.311334] Modules linked in: kvm_intel kvm irqbypass crct10dif_pclmul crc32_pclmul ghash_clmulni_intel pcbc aesni_intel aes_x86_64 crypto_simd cryptd glue_helper serio_raw [ 8.314190] CPU: 1 PID: 397 Comm: tc Not tainted 4.17.0-rc3+ #357 [ 8.315252] RIP: 0010:__tcf_idr_release+0x33/0x140 [ 8.316203] RSP: 0018:ffffa0718038f840 EFLAGS: 00010246 [ 8.317123] RAX: 0000000000000001 RBX: 0000000000021100 RCX: 0000000000000000 [ 8.319831] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000021100 [ 8.321181] RBP: 0000000000000000 R08: 000000000004adf8 R09: 0000000000000122 [ 8.322645] R10: 0000000000000000 R11: ffffffff9e5b01ed R12: 0000000000000000 [ 8.324157] R13: ffffffff9e0d3cc0 R14: 0000000000000000 R15: 0000000000000000 [ 8.325590] FS: 00007f591292e700(0000) GS:ffff8fcf5bc40000(0000) knlGS:0000000000000000 [ 8.327001] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 8.327987] CR2: 0000000000021130 CR3: 00000000180e6004 CR4: 00000000001606a0 [ 8.329289] Call Trace: [ 8.329735] tcf_skbedit_init+0xa7/0xb0 [ 8.330423] tcf_action_init_1+0x362/0x410 [ 8.331139] ? try_to_wake_up+0x44/0x430 [ 8.331817] tcf_action_init+0x103/0x190 [ 8.332511] tc_ctl_action+0x11a/0x220 [ 8.333174] rtnetlink_rcv_msg+0x23d/0x2e0 [ 8.333902] ? _cond_resched+0x16/0x40 [ 8.334569] ? __kmalloc_node_track_caller+0x5b/0x2c0 [ 8.335440] ? rtnl_calcit.isra.31+0xf0/0xf0 [ 8.336178] netlink_rcv_skb+0xdb/0x110 [ 8.336855] netlink_unicast+0x167/0x220 [ 8.337550] netlink_sendmsg+0x2a7/0x390 [ 8.338258] sock_sendmsg+0x30/0x40 [ 8.338865] ___sys_sendmsg+0x2c5/0x2e0 [ 8.339531] ? pagecache_get_page+0x27/0x210 [ 8.340271] ? filemap_fault+0xa2/0x630 [ 8.340943] ? page_add_file_rmap+0x108/0x200 [ 8.341732] ? alloc_set_pte+0x2aa/0x530 [ 8.342573] ? finish_fault+0x4e/0x70 [ 8.343332] ? __handle_mm_fault+0xbc1/0x10d0 [ 8.344337] ? __sys_sendmsg+0x53/0x80 [ 8.345040] __sys_sendmsg+0x53/0x80 [ 8.345678] do_syscall_64+0x4f/0x100 [ 8.346339] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 8.347206] RIP: 0033:0x7f591191da67 [ 8.347831] RSP: 002b:00007fff745abd48 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 8.349179] RAX: ffffffffffffffda RBX: 00007fff745abe70 RCX: 00007f591191da67 [ 8.350431] RDX: 0000000000000000 RSI: 00007fff745abdc0 RDI: 0000000000000003 [ 8.351659] RBP: 000000005af35251 R08: 0000000000000001 R09: 0000000000000000 [ 8.352922] R10: 00000000000005f1 R11: 0000000000000246 R12: 0000000000000000 [ 8.354183] R13: 00007fff745afed0 R14: 0000000000000001 R15: 00000000006767c0 [ 8.355400] Code: 41 89 d4 53 89 f5 48 89 fb e8 aa 20 fd ff 85 c0 0f 84 ed 00 00 00 48 85 db 0f 84 cf 00 00 00 40 84 ed 0f 85 cd 00 00 00 45 84 e4 <8b> 53 30 74 0d 85 d2 b8 ff ff ff ff 0f 8f b3 00 00 00 8b 43 2c [ 8.358699] RIP: __tcf_idr_release+0x33/0x140 RSP: ffffa0718038f840 [ 8.359770] CR2: 0000000000021130 [ 8.360438] ---[ end trace 60c66be45dfc14f0 ]---
The caller calls action's ->init() and passes pointer to "struct tc_action *a", which later may be initialized to point at the existing action, otherwise "struct tc_action *a" is still invalid, and therefore dereferencing it is an error as happens in tcf_idr_release, where refcnt is decremented.
So in case of missing flags tcf_idr_release must be called only for existing actions.
v2: - prepare patch for net tree
Fixes: 5e1567aeb7fe ("net sched: skbedit action fix late binding") Signed-off-by: Roman Mashak mrv@mojatatu.com Acked-by: Cong Wang xiyou.wangcong@gmail.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- net/sched/act_skbedit.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
--- a/net/sched/act_skbedit.c +++ b/net/sched/act_skbedit.c @@ -121,7 +121,8 @@ static int tcf_skbedit_init(struct net * return 0;
if (!flags) { - tcf_idr_release(*a, bind); + if (exists) + tcf_idr_release(*a, bind); return -EINVAL; }
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Yury Norov ynorov@caviumnetworks.com
[ Upstream commit 4ba281d5bd9907355e6b79fb72049c9ed50cc670 ]
test_find_first_bit() is intentionally sub-optimal, and may cause soft lockup due to long time of run on some systems. So decrease length of bitmap to traverse to avoid lockup.
With the change below, time of test execution doesn't exceed 0.2 seconds on my testing system.
Link: http://lkml.kernel.org/r/20180420171949.15710-1-ynorov@caviumnetworks.com Fixes: 4441fca0a27f5 ("lib: test module for find_*_bit() functions") Signed-off-by: Yury Norov ynorov@caviumnetworks.com Reviewed-by: Andrew Morton akpm@linux-foundation.org Reported-by: Fengguang Wu fengguang.wu@intel.com Signed-off-by: Andrew Morton akpm@linux-foundation.org Signed-off-by: Linus Torvalds torvalds@linux-foundation.org Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- lib/find_bit_benchmark.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-)
--- a/lib/find_bit_benchmark.c +++ b/lib/find_bit_benchmark.c @@ -132,7 +132,12 @@ static int __init find_bit_test(void) test_find_next_bit(bitmap, BITMAP_LEN); test_find_next_zero_bit(bitmap, BITMAP_LEN); test_find_last_bit(bitmap, BITMAP_LEN); - test_find_first_bit(bitmap, BITMAP_LEN); + + /* + * test_find_first_bit() may take some time, so + * traverse only part of bitmap to avoid soft lockup. + */ + test_find_first_bit(bitmap, BITMAP_LEN / 10); test_find_next_and_bit(bitmap, bitmap2, BITMAP_LEN);
pr_err("\nStart testing find_bit() with sparse bitmap\n");
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Jeffrey Hugo jhugo@codeaurora.org
[ Upstream commit ae646f0b9ca135b87bc73ff606ef996c3029780a ]
load_module() creates W+X mappings via __vmalloc_node_range() (from layout_and_allocate()->move_module()->module_alloc()) by using PAGE_KERNEL_EXEC. These mappings are later cleaned up via "call_rcu_sched(&freeinit->rcu, do_free_init)" from do_init_module().
This is a problem because call_rcu_sched() queues work, which can be run after debug_checkwx() is run, resulting in a race condition. If hit, the race results in a nasty splat about insecure W+X mappings, which results in a poor user experience as these are not the mappings that debug_checkwx() is intended to catch.
This issue is observed on multiple arm64 platforms, and has been artificially triggered on an x86 platform.
Address the race by flushing the queued work before running the arch-defined mark_rodata_ro() which then calls debug_checkwx().
Link: http://lkml.kernel.org/r/1525103946-29526-1-git-send-email-jhugo@codeaurora.... Fixes: e1a58320a38d ("x86/mm: Warn on W^X mappings") Signed-off-by: Jeffrey Hugo jhugo@codeaurora.org Reported-by: Timur Tabi timur@codeaurora.org Reported-by: Jan Glauber jan.glauber@caviumnetworks.com Acked-by: Kees Cook keescook@chromium.org Acked-by: Ingo Molnar mingo@kernel.org Acked-by: Will Deacon will.deacon@arm.com Acked-by: Laura Abbott labbott@redhat.com Cc: Mark Rutland mark.rutland@arm.com Cc: Ard Biesheuvel ard.biesheuvel@linaro.org Cc: Catalin Marinas catalin.marinas@arm.com Cc: Stephen Smalley sds@tycho.nsa.gov Cc: Thomas Gleixner tglx@linutronix.de Cc: Peter Zijlstra peterz@infradead.org Signed-off-by: Andrew Morton akpm@linux-foundation.org Signed-off-by: Linus Torvalds torvalds@linux-foundation.org Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- init/main.c | 7 +++++++ kernel/module.c | 5 +++++ 2 files changed, 12 insertions(+)
--- a/init/main.c +++ b/init/main.c @@ -981,6 +981,13 @@ __setup("rodata=", set_debug_rodata); static void mark_readonly(void) { if (rodata_enabled) { + /* + * load_module() results in W+X mappings, which are cleaned up + * with call_rcu_sched(). Let's make sure that queued work is + * flushed so that we don't hit false positives looking for + * insecure pages which are W+X. + */ + rcu_barrier_sched(); mark_rodata_ro(); rodata_test(); } else --- a/kernel/module.c +++ b/kernel/module.c @@ -3521,6 +3521,11 @@ static noinline int do_init_module(struc * walking this with preempt disabled. In all the failure paths, we * call synchronize_sched(), but we don't want to slow down the success * path, so use actual RCU here. + * Note that module_alloc() on most architectures creates W+X page + * mappings which won't be cleaned up until do_free_init() runs. Any + * code such as mark_rodata_ro() which depends on those mappings to + * be cleaned up needs to sync with the queued work - ie + * rcu_barrier_sched() */ call_rcu_sched(&freeinit->rcu, do_free_init); mutex_unlock(&module_mutex);
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Laura Abbott labbott@redhat.com
[ Upstream commit 3955333df9a50e8783d115613a397ae55d905080 ]
The existing kcore code checks for bad addresses against __va(0) with the assumption that this is the lowest address on the system. This may not hold true on some systems (e.g. arm64) and produce overflows and crashes. Switch to using other functions to validate the address range.
It's currently only seen on arm64 and it's not clear if anyone wants to use that particular combination on a stable release. So this is not urgent for stable.
Link: http://lkml.kernel.org/r/20180501201143.15121-1-labbott@redhat.com Signed-off-by: Laura Abbott labbott@redhat.com Tested-by: Dave Anderson anderson@redhat.com Cc: Kees Cook keescook@chromium.org Cc: Ard Biesheuvel ard.biesheuvel@linaro.org Cc: Ingo Molnar mingo@kernel.org Cc: Andi Kleen andi@firstfloor.org Cc: Alexey Dobriyan adobriyan@gmail.coma Signed-off-by: Andrew Morton akpm@linux-foundation.org Signed-off-by: Linus Torvalds torvalds@linux-foundation.org Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- fs/proc/kcore.c | 23 ++++++++++++++++------- 1 file changed, 16 insertions(+), 7 deletions(-)
--- a/fs/proc/kcore.c +++ b/fs/proc/kcore.c @@ -209,25 +209,34 @@ kclist_add_private(unsigned long pfn, un { struct list_head *head = (struct list_head *)arg; struct kcore_list *ent; + struct page *p; + + if (!pfn_valid(pfn)) + return 1; + + p = pfn_to_page(pfn); + if (!memmap_valid_within(pfn, p, page_zone(p))) + return 1;
ent = kmalloc(sizeof(*ent), GFP_KERNEL); if (!ent) return -ENOMEM; - ent->addr = (unsigned long)__va((pfn << PAGE_SHIFT)); + ent->addr = (unsigned long)page_to_virt(p); ent->size = nr_pages << PAGE_SHIFT;
- /* Sanity check: Can happen in 32bit arch...maybe */ - if (ent->addr < (unsigned long) __va(0)) + if (!virt_addr_valid(ent->addr)) goto free_out;
/* cut not-mapped area. ....from ppc-32 code. */ if (ULONG_MAX - ent->addr < ent->size) ent->size = ULONG_MAX - ent->addr;
- /* cut when vmalloc() area is higher than direct-map area */ - if (VMALLOC_START > (unsigned long)__va(0)) { - if (ent->addr > VMALLOC_START) - goto free_out; + /* + * We've already checked virt_addr_valid so we know this address + * is a valid pointer, therefore we can check against it to determine + * if we need to trim + */ + if (VMALLOC_START > ent->addr) { if (VMALLOC_START - ent->addr < ent->size) ent->size = VMALLOC_START - ent->addr; }
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Ashish Samant ashish.samant@oracle.com
[ Upstream commit e4383029201470523c3ffe339bd7d57e9b4a7d65 ]
While reflinking an inode, we create a new inode in orphan directory, then take EX lock on it, reflink the original inode to orphan inode and release EX lock. Once the lock is released another node could request it in EX mode from ocfs2_recover_orphans() which causes downconvert of the lock, on this node, to NL mode.
Later we attempt to initialize security acl for the orphan inode and move it to the reflink destination. However, while doing this we dont take EX lock on the inode. This could potentially cause problems because we could be starting transaction, accessing journal and modifying metadata of the inode while holding NL lock and with another node holding EX lock on the inode.
Fix this by taking orphan inode cluster lock in EX mode before initializing security and moving orphan inode to reflink destination. Use the __tracker variant while taking inode lock to avoid recursive locking in the ocfs2_init_security_and_acl() call chain.
Link: http://lkml.kernel.org/r/1523475107-7639-1-git-send-email-ashish.samant@orac... Signed-off-by: Ashish Samant ashish.samant@oracle.com Reviewed-by: Joseph Qi jiangqi903@gmail.com Reviewed-by: Junxiao Bi junxiao.bi@oracle.com Acked-by: Jun Piao piaojun@huawei.com Cc: Mark Fasheh mark@fasheh.com Cc: Joel Becker jlbec@evilplan.org Cc: Changwei Ge ge.changwei@h3c.com Signed-off-by: Andrew Morton akpm@linux-foundation.org Signed-off-by: Linus Torvalds torvalds@linux-foundation.org Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- fs/ocfs2/refcounttree.c | 14 ++++++++++++-- 1 file changed, 12 insertions(+), 2 deletions(-)
--- a/fs/ocfs2/refcounttree.c +++ b/fs/ocfs2/refcounttree.c @@ -4250,10 +4250,11 @@ out: static int ocfs2_reflink(struct dentry *old_dentry, struct inode *dir, struct dentry *new_dentry, bool preserve) { - int error; + int error, had_lock; struct inode *inode = d_inode(old_dentry); struct buffer_head *old_bh = NULL; struct inode *new_orphan_inode = NULL; + struct ocfs2_lock_holder oh;
if (!ocfs2_refcount_tree(OCFS2_SB(inode->i_sb))) return -EOPNOTSUPP; @@ -4295,6 +4296,14 @@ static int ocfs2_reflink(struct dentry * goto out; }
+ had_lock = ocfs2_inode_lock_tracker(new_orphan_inode, NULL, 1, + &oh); + if (had_lock < 0) { + error = had_lock; + mlog_errno(error); + goto out; + } + /* If the security isn't preserved, we need to re-initialize them. */ if (!preserve) { error = ocfs2_init_security_and_acl(dir, new_orphan_inode, @@ -4302,14 +4311,15 @@ static int ocfs2_reflink(struct dentry * if (error) mlog_errno(error); } -out: if (!error) { error = ocfs2_mv_orphaned_inode_to_new(dir, new_orphan_inode, new_dentry); if (error) mlog_errno(error); } + ocfs2_inode_unlock_tracker(new_orphan_inode, 1, &oh, had_lock);
+out: if (new_orphan_inode) { /* * We need to open_unlock the inode no matter whether we
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Masami Hiramatsu mhiramat@kernel.org
[ Upstream commit ee6a7354a3629f9b65bc18dbe393503e9440d6f5 ]
Since MOV SS and POP SS instructions will delay the exceptions until the next instruction is executed, single-stepping on it by kprobes must be prohibited.
However, kprobes usually executes those instructions directly on trampoline buffer (a.k.a. kprobe-booster), except for the kprobes which has post_handler. Thus if kprobe user probes MOV SS with post_handler, it will do single-stepping on the MOV SS.
This means it is safe that if it is used via ftrace or perf/bpf since those don't use the post_handler.
Anyway, since the stack switching is a rare case, it is safer just rejecting kprobes on such instructions.
Signed-off-by: Masami Hiramatsu mhiramat@kernel.org Signed-off-by: Thomas Gleixner tglx@linutronix.de Cc: Ricardo Neri ricardo.neri-calderon@linux.intel.com Cc: Francis Deslauriers francis.deslauriers@efficios.com Cc: Oleg Nesterov oleg@redhat.com Cc: Alexei Starovoitov ast@kernel.org Cc: Steven Rostedt rostedt@goodmis.org Cc: Andy Lutomirski luto@kernel.org Cc: "H . Peter Anvin" hpa@zytor.com Cc: Yonghong Song yhs@fb.com Cc: Borislav Petkov bp@suse.de Cc: Linus Torvalds torvalds@linux-foundation.org Cc: "David S . Miller" davem@davemloft.net Link: https://lkml.kernel.org/r/152587069574.17316.3311695234863248641.stgit@devbo... Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/x86/include/asm/insn.h | 18 ++++++++++++++++++ arch/x86/kernel/kprobes/core.c | 4 ++++ 2 files changed, 22 insertions(+)
--- a/arch/x86/include/asm/insn.h +++ b/arch/x86/include/asm/insn.h @@ -208,4 +208,22 @@ static inline int insn_offset_immediate( return insn_offset_displacement(insn) + insn->displacement.nbytes; }
+#define POP_SS_OPCODE 0x1f +#define MOV_SREG_OPCODE 0x8e + +/* + * Intel SDM Vol.3A 6.8.3 states; + * "Any single-step trap that would be delivered following the MOV to SS + * instruction or POP to SS instruction (because EFLAGS.TF is 1) is + * suppressed." + * This function returns true if @insn is MOV SS or POP SS. On these + * instructions, single stepping is suppressed. + */ +static inline int insn_masking_exception(struct insn *insn) +{ + return insn->opcode.bytes[0] == POP_SS_OPCODE || + (insn->opcode.bytes[0] == MOV_SREG_OPCODE && + X86_MODRM_REG(insn->modrm.bytes[0]) == 2); +} + #endif /* _ASM_X86_INSN_H */ --- a/arch/x86/kernel/kprobes/core.c +++ b/arch/x86/kernel/kprobes/core.c @@ -370,6 +370,10 @@ int __copy_instruction(u8 *dest, u8 *src if (insn->opcode.bytes[0] == BREAKPOINT_INSTRUCTION) return 0;
+ /* We should not singlestep on the exception masking instructions */ + if (insn_masking_exception(insn)) + return 0; + #ifdef CONFIG_X86_64 /* Only x86_64 has RIP relative instructions */ if (insn_rip_relative(insn)) {
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Masami Hiramatsu mhiramat@kernel.org
[ Upstream commit 13ebe18c94f5b0665c01ae7fad2717ae959f4212 ]
Since MOV SS and POP SS instructions will delay the exceptions until the next instruction is executed, single-stepping on it by uprobes must be prohibited.
uprobe already rejects probing on POP SS (0x1f), but allows probing on MOV SS (0x8e and reg == 2). This checks the target instruction and if it is MOV SS or POP SS, returns -ENOTSUPP to reject probing.
Signed-off-by: Masami Hiramatsu mhiramat@kernel.org Signed-off-by: Thomas Gleixner tglx@linutronix.de Acked-by: Oleg Nesterov oleg@redhat.com Cc: Ricardo Neri ricardo.neri-calderon@linux.intel.com Cc: Francis Deslauriers francis.deslauriers@efficios.com Cc: Alexei Starovoitov ast@kernel.org Cc: Steven Rostedt rostedt@goodmis.org Cc: Andy Lutomirski luto@kernel.org Cc: "H . Peter Anvin" hpa@zytor.com Cc: Yonghong Song yhs@fb.com Cc: Borislav Petkov bp@suse.de Cc: Linus Torvalds torvalds@linux-foundation.org Cc: "David S . Miller" davem@davemloft.net Link: https://lkml.kernel.org/r/152587072544.17316.5950935243917346341.stgit@devbo... Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/x86/kernel/uprobes.c | 4 ++++ 1 file changed, 4 insertions(+)
--- a/arch/x86/kernel/uprobes.c +++ b/arch/x86/kernel/uprobes.c @@ -299,6 +299,10 @@ static int uprobe_init_insn(struct arch_ if (is_prefix_bad(insn)) return -ENOTSUPP;
+ /* We should not singlestep on the exception masking instructions */ + if (insn_masking_exception(insn)) + return -ENOTSUPP; + if (x86_64) good_insns = good_insns_64; else
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Ingo Molnar mingo@kernel.org
[ Upstream commit 4fe875e4bd3cae85ae6f6eaf77f63fabe613b66e ]
The following commit:
ee6a7354a362: kprobes/x86: Prohibit probing on exception masking instructions
Modified <asm/insn.h>, adding the insn_masking_exception() function.
Sync the tooling version of the header to it, to fix this warning:
Warning: synced file at 'tools/objtool/arch/x86/include/asm/insn.h' differs from latest kernel version at 'arch/x86/include/asm/insn.h'
Cc: Peter Zijlstra peterz@infradead.org Cc: Josh Poimboeuf jpoimboe@redhat.com Cc: Masami Hiramatsu mhiramat@kernel.org Cc: Thomas Gleixner tglx@linutronix.de Cc: Ricardo Neri ricardo.neri-calderon@linux.intel.com Cc: Francis Deslauriers francis.deslauriers@efficios.com Cc: Oleg Nesterov oleg@redhat.com Cc: Alexei Starovoitov ast@kernel.org Cc: Steven Rostedt rostedt@goodmis.org Cc: Andy Lutomirski luto@kernel.org Cc: "H . Peter Anvin" hpa@zytor.com Cc: Yonghong Song yhs@fb.com Cc: Borislav Petkov bp@suse.de Cc: Linus Torvalds torvalds@linux-foundation.org Cc: "David S . Miller" davem@davemloft.net Signed-off-by: Ingo Molnar mingo@kernel.org Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- tools/objtool/arch/x86/include/asm/insn.h | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+)
--- a/tools/objtool/arch/x86/include/asm/insn.h +++ b/tools/objtool/arch/x86/include/asm/insn.h @@ -208,4 +208,22 @@ static inline int insn_offset_immediate( return insn_offset_displacement(insn) + insn->displacement.nbytes; }
+#define POP_SS_OPCODE 0x1f +#define MOV_SREG_OPCODE 0x8e + +/* + * Intel SDM Vol.3A 6.8.3 states; + * "Any single-step trap that would be delivered following the MOV to SS + * instruction or POP to SS instruction (because EFLAGS.TF is 1) is + * suppressed." + * This function returns true if @insn is MOV SS or POP SS. On these + * instructions, single stepping is suppressed. + */ +static inline int insn_masking_exception(struct insn *insn) +{ + return insn->opcode.bytes[0] == POP_SS_OPCODE || + (insn->opcode.bytes[0] == MOV_SREG_OPCODE && + X86_MODRM_REG(insn->modrm.bytes[0]) == 2); +} + #endif /* _ASM_X86_INSN_H */
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Ingo Molnar mingo@kernel.org
[ Upstream commit 73bb4d6cd192b8629c5125aaada9892d9fc986b6 ]
Fix this warning:
mpx-mini-test.c:422:0: warning: "SEGV_BNDERR" redefined
Cc: Dave Hansen dave.hansen@linux.intel.com Cc: Linus Torvalds torvalds@linux-foundation.org Cc: Peter Zijlstra peterz@infradead.org Cc: Thomas Gleixner tglx@linutronix.de Cc: akpm@linux-foundation.org Cc: dave.hansen@intel.com Cc: linux-mm@kvack.org Cc: linuxram@us.ibm.com Cc: mpe@ellerman.id.au Cc: shakeelb@google.com Cc: shuah@kernel.org Link: http://lkml.kernel.org/r/20180514085908.GA12798@gmail.com Signed-off-by: Ingo Molnar mingo@kernel.org Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- tools/testing/selftests/x86/mpx-mini-test.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-)
--- a/tools/testing/selftests/x86/mpx-mini-test.c +++ b/tools/testing/selftests/x86/mpx-mini-test.c @@ -368,6 +368,11 @@ static int expected_bnd_index = -1; uint64_t shadow_plb[NR_MPX_BOUNDS_REGISTERS][2]; /* shadow MPX bound registers */ unsigned long shadow_map[NR_MPX_BOUNDS_REGISTERS];
+/* Failed address bound checks: */ +#ifndef SEGV_BNDERR +# define SEGV_BNDERR 3 +#endif + /* * The kernel is supposed to provide some information about the bounds * exception in the siginfo. It should match what we have in the bounds @@ -419,8 +424,6 @@ void handler(int signum, siginfo_t *si, br_count++; dprintf1("#BR 0x%jx (total seen: %d)\n", status, br_count);
-#define SEGV_BNDERR 3 /* failed address bound checks */ - dprintf2("Saw a #BR! status 0x%jx at %016lx br_reason: %jx\n", status, ip, br_reason); dprintf2("si_signo: %d\n", si->si_signo);
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Andy Lutomirski luto@kernel.org
[ Upstream commit 59c2a7226fc5130032021c99f05ad5c0a56551cd ]
This exercises a nasty corner case of the x86 ISA.
Signed-off-by: Andy Lutomirski luto@kernel.org Cc: Borislav Petkov bp@alien8.de Cc: Linus Torvalds torvalds@linux-foundation.org Cc: Peter Zijlstra peterz@infradead.org Cc: Thomas Gleixner tglx@linutronix.de Link: http://lkml.kernel.org/r/67e08b69817171da8026e0eb3af0214b06b4d74f.1525800455... Signed-off-by: Ingo Molnar mingo@kernel.org Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- tools/testing/selftests/x86/Makefile | 2 tools/testing/selftests/x86/mov_ss_trap.c | 285 ++++++++++++++++++++++++++++++ 2 files changed, 286 insertions(+), 1 deletion(-) create mode 100644 tools/testing/selftests/x86/mov_ss_trap.c
--- a/tools/testing/selftests/x86/Makefile +++ b/tools/testing/selftests/x86/Makefile @@ -11,7 +11,7 @@ CAN_BUILD_X86_64 := $(shell ./check_cc.s
TARGETS_C_BOTHBITS := single_step_syscall sysret_ss_attrs syscall_nt test_mremap_vdso \ check_initial_reg_state sigreturn iopl mpx-mini-test ioperm \ - protection_keys test_vdso test_vsyscall + protection_keys test_vdso test_vsyscall mov_ss_trap TARGETS_C_32BIT_ONLY := entry_from_vm86 syscall_arg_fault test_syscall_vdso unwind_vdso \ test_FCMOV test_FCOMI test_FISTTP \ vdso_restorer --- /dev/null +++ b/tools/testing/selftests/x86/mov_ss_trap.c @@ -0,0 +1,285 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * mov_ss_trap.c: Exercise the bizarre side effects of a watchpoint on MOV SS + * + * This does MOV SS from a watchpointed address followed by various + * types of kernel entries. A MOV SS that hits a watchpoint will queue + * up a #DB trap but will not actually deliver that trap. The trap + * will be delivered after the next instruction instead. The CPU's logic + * seems to be: + * + * - Any fault: drop the pending #DB trap. + * - INT $N, INT3, INTO, SYSCALL, SYSENTER: enter the kernel and then + * deliver #DB. + * - ICEBP: enter the kernel but do not deliver the watchpoint trap + * - breakpoint: only one #DB is delivered (phew!) + * + * There are plenty of ways for a kernel to handle this incorrectly. This + * test tries to exercise all the cases. + * + * This should mostly cover CVE-2018-1087 and CVE-2018-8897. + */ +#define _GNU_SOURCE + +#include <stdlib.h> +#include <sys/ptrace.h> +#include <sys/types.h> +#include <sys/wait.h> +#include <sys/user.h> +#include <sys/syscall.h> +#include <unistd.h> +#include <errno.h> +#include <stddef.h> +#include <stdio.h> +#include <err.h> +#include <string.h> +#include <setjmp.h> +#include <sys/prctl.h> + +#define X86_EFLAGS_RF (1UL << 16) + +#if __x86_64__ +# define REG_IP REG_RIP +#else +# define REG_IP REG_EIP +#endif + +unsigned short ss; +extern unsigned char breakpoint_insn[]; +sigjmp_buf jmpbuf; +static unsigned char altstack_data[SIGSTKSZ]; + +static void enable_watchpoint(void) +{ + pid_t parent = getpid(); + int status; + + pid_t child = fork(); + if (child < 0) + err(1, "fork"); + + if (child) { + if (waitpid(child, &status, 0) != child) + err(1, "waitpid for child"); + } else { + unsigned long dr0, dr1, dr7; + + dr0 = (unsigned long)&ss; + dr1 = (unsigned long)breakpoint_insn; + dr7 = ((1UL << 1) | /* G0 */ + (3UL << 16) | /* RW0 = read or write */ + (1UL << 18) | /* LEN0 = 2 bytes */ + (1UL << 3)); /* G1, RW1 = insn */ + + if (ptrace(PTRACE_ATTACH, parent, NULL, NULL) != 0) + err(1, "PTRACE_ATTACH"); + + if (waitpid(parent, &status, 0) != parent) + err(1, "waitpid for child"); + + if (ptrace(PTRACE_POKEUSER, parent, (void *)offsetof(struct user, u_debugreg[0]), dr0) != 0) + err(1, "PTRACE_POKEUSER DR0"); + + if (ptrace(PTRACE_POKEUSER, parent, (void *)offsetof(struct user, u_debugreg[1]), dr1) != 0) + err(1, "PTRACE_POKEUSER DR1"); + + if (ptrace(PTRACE_POKEUSER, parent, (void *)offsetof(struct user, u_debugreg[7]), dr7) != 0) + err(1, "PTRACE_POKEUSER DR7"); + + printf("\tDR0 = %lx, DR1 = %lx, DR7 = %lx\n", dr0, dr1, dr7); + + if (ptrace(PTRACE_DETACH, parent, NULL, NULL) != 0) + err(1, "PTRACE_DETACH"); + + exit(0); + } +} + +static void sethandler(int sig, void (*handler)(int, siginfo_t *, void *), + int flags) +{ + struct sigaction sa; + memset(&sa, 0, sizeof(sa)); + sa.sa_sigaction = handler; + sa.sa_flags = SA_SIGINFO | flags; + sigemptyset(&sa.sa_mask); + if (sigaction(sig, &sa, 0)) + err(1, "sigaction"); +} + +static char const * const signames[] = { + [SIGSEGV] = "SIGSEGV", + [SIGBUS] = "SIBGUS", + [SIGTRAP] = "SIGTRAP", + [SIGILL] = "SIGILL", +}; + +static void sigtrap(int sig, siginfo_t *si, void *ctx_void) +{ + ucontext_t *ctx = ctx_void; + + printf("\tGot SIGTRAP with RIP=%lx, EFLAGS.RF=%d\n", + (unsigned long)ctx->uc_mcontext.gregs[REG_IP], + !!(ctx->uc_mcontext.gregs[REG_EFL] & X86_EFLAGS_RF)); +} + +static void handle_and_return(int sig, siginfo_t *si, void *ctx_void) +{ + ucontext_t *ctx = ctx_void; + + printf("\tGot %s with RIP=%lx\n", signames[sig], + (unsigned long)ctx->uc_mcontext.gregs[REG_IP]); +} + +static void handle_and_longjmp(int sig, siginfo_t *si, void *ctx_void) +{ + ucontext_t *ctx = ctx_void; + + printf("\tGot %s with RIP=%lx\n", signames[sig], + (unsigned long)ctx->uc_mcontext.gregs[REG_IP]); + + siglongjmp(jmpbuf, 1); +} + +int main() +{ + unsigned long nr; + + asm volatile ("mov %%ss, %[ss]" : [ss] "=m" (ss)); + printf("\tSS = 0x%hx, &SS = 0x%p\n", ss, &ss); + + if (prctl(PR_SET_PTRACER, PR_SET_PTRACER_ANY, 0, 0, 0) == 0) + printf("\tPR_SET_PTRACER_ANY succeeded\n"); + + printf("\tSet up a watchpoint\n"); + sethandler(SIGTRAP, sigtrap, 0); + enable_watchpoint(); + + printf("[RUN]\tRead from watched memory (should get SIGTRAP)\n"); + asm volatile ("mov %[ss], %[tmp]" : [tmp] "=r" (nr) : [ss] "m" (ss)); + + printf("[RUN]\tMOV SS; INT3\n"); + asm volatile ("mov %[ss], %%ss; int3" :: [ss] "m" (ss)); + + printf("[RUN]\tMOV SS; INT 3\n"); + asm volatile ("mov %[ss], %%ss; .byte 0xcd, 0x3" :: [ss] "m" (ss)); + + printf("[RUN]\tMOV SS; CS CS INT3\n"); + asm volatile ("mov %[ss], %%ss; .byte 0x2e, 0x2e; int3" :: [ss] "m" (ss)); + + printf("[RUN]\tMOV SS; CSx14 INT3\n"); + asm volatile ("mov %[ss], %%ss; .fill 14,1,0x2e; int3" :: [ss] "m" (ss)); + + printf("[RUN]\tMOV SS; INT 4\n"); + sethandler(SIGSEGV, handle_and_return, SA_RESETHAND); + asm volatile ("mov %[ss], %%ss; int $4" :: [ss] "m" (ss)); + +#ifdef __i386__ + printf("[RUN]\tMOV SS; INTO\n"); + sethandler(SIGSEGV, handle_and_return, SA_RESETHAND); + nr = -1; + asm volatile ("add $1, %[tmp]; mov %[ss], %%ss; into" + : [tmp] "+r" (nr) : [ss] "m" (ss)); +#endif + + if (sigsetjmp(jmpbuf, 1) == 0) { + printf("[RUN]\tMOV SS; ICEBP\n"); + + /* Some emulators (e.g. QEMU TCG) don't emulate ICEBP. */ + sethandler(SIGILL, handle_and_longjmp, SA_RESETHAND); + + asm volatile ("mov %[ss], %%ss; .byte 0xf1" :: [ss] "m" (ss)); + } + + if (sigsetjmp(jmpbuf, 1) == 0) { + printf("[RUN]\tMOV SS; CLI\n"); + sethandler(SIGSEGV, handle_and_longjmp, SA_RESETHAND); + asm volatile ("mov %[ss], %%ss; cli" :: [ss] "m" (ss)); + } + + if (sigsetjmp(jmpbuf, 1) == 0) { + printf("[RUN]\tMOV SS; #PF\n"); + sethandler(SIGSEGV, handle_and_longjmp, SA_RESETHAND); + asm volatile ("mov %[ss], %%ss; mov (-1), %[tmp]" + : [tmp] "=r" (nr) : [ss] "m" (ss)); + } + + /* + * INT $1: if #DB has DPL=3 and there isn't special handling, + * then the kernel will die. + */ + if (sigsetjmp(jmpbuf, 1) == 0) { + printf("[RUN]\tMOV SS; INT 1\n"); + sethandler(SIGSEGV, handle_and_longjmp, SA_RESETHAND); + asm volatile ("mov %[ss], %%ss; int $1" :: [ss] "m" (ss)); + } + +#ifdef __x86_64__ + /* + * In principle, we should test 32-bit SYSCALL as well, but + * the calling convention is so unpredictable that it's + * not obviously worth the effort. + */ + if (sigsetjmp(jmpbuf, 1) == 0) { + printf("[RUN]\tMOV SS; SYSCALL\n"); + sethandler(SIGILL, handle_and_longjmp, SA_RESETHAND); + nr = SYS_getpid; + /* + * Toggle the high bit of RSP to make it noncanonical to + * strengthen this test on non-SMAP systems. + */ + asm volatile ("btc $63, %%rsp\n\t" + "mov %[ss], %%ss; syscall\n\t" + "btc $63, %%rsp" + : "+a" (nr) : [ss] "m" (ss) + : "rcx" +#ifdef __x86_64__ + , "r11" +#endif + ); + } +#endif + + printf("[RUN]\tMOV SS; breakpointed NOP\n"); + asm volatile ("mov %[ss], %%ss; breakpoint_insn: nop" :: [ss] "m" (ss)); + + /* + * Invoking SYSENTER directly breaks all the rules. Just handle + * the SIGSEGV. + */ + if (sigsetjmp(jmpbuf, 1) == 0) { + printf("[RUN]\tMOV SS; SYSENTER\n"); + stack_t stack = { + .ss_sp = altstack_data, + .ss_size = SIGSTKSZ, + }; + if (sigaltstack(&stack, NULL) != 0) + err(1, "sigaltstack"); + sethandler(SIGSEGV, handle_and_longjmp, SA_RESETHAND | SA_ONSTACK); + nr = SYS_getpid; + asm volatile ("mov %[ss], %%ss; SYSENTER" : "+a" (nr) + : [ss] "m" (ss) : "flags", "rcx" +#ifdef __x86_64__ + , "r11" +#endif + ); + + /* We're unreachable here. SYSENTER forgets RIP. */ + } + + if (sigsetjmp(jmpbuf, 1) == 0) { + printf("[RUN]\tMOV SS; INT $0x80\n"); + sethandler(SIGSEGV, handle_and_longjmp, SA_RESETHAND); + nr = 20; /* compat getpid */ + asm volatile ("mov %[ss], %%ss; int $0x80" + : "+a" (nr) : [ss] "m" (ss) + : "flags" +#ifdef __x86_64__ + , "r8", "r9", "r10", "r11" +#endif + ); + } + + printf("[OK]\tI aten't dead\n"); + return 0; +}
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Dave Hansen dave.hansen@linux.intel.com
[ Upstream commit 55556b0b2016806b2e16a20b62d143383983a34a ]
do_not_expect_pk_fault() is a helper that we call when we do not expect a PK fault to have occurred. But, it is a function, which means that it obscures the line numbers from pkey_assert(). It also gives no details.
Replace it with an implementation that gives nice line numbers and also lets callers pass in a more descriptive message about what happened that caused the unexpected fault.
Signed-off-by: Dave Hansen dave.hansen@linux.intel.com Cc: Andrew Morton akpm@linux-foundation.org Cc: Dave Hansen dave.hansen@intel.com Cc: Linus Torvalds torvalds@linux-foundation.org Cc: Michael Ellermen mpe@ellerman.id.au Cc: Peter Zijlstra peterz@infradead.org Cc: Ram Pai linuxram@us.ibm.com Cc: Shuah Khan shuah@kernel.org Cc: Thomas Gleixner tglx@linutronix.de Cc: linux-mm@kvack.org Link: http://lkml.kernel.org/r/20180509171338.55D13B64@viggo.jf.intel.com Signed-off-by: Ingo Molnar mingo@kernel.org Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- tools/testing/selftests/x86/protection_keys.c | 13 +++++++------ 1 file changed, 7 insertions(+), 6 deletions(-)
--- a/tools/testing/selftests/x86/protection_keys.c +++ b/tools/testing/selftests/x86/protection_keys.c @@ -954,10 +954,11 @@ void expected_pk_fault(int pkey) last_si_pkey = -1; }
-void do_not_expect_pk_fault(void) -{ - pkey_assert(last_pkru_faults == pkru_faults); -} +#define do_not_expect_pk_fault(msg) do { \ + if (last_pkru_faults != pkru_faults) \ + dprintf0("unexpected PK fault: %s\n", msg); \ + pkey_assert(last_pkru_faults == pkru_faults); \ +} while (0)
int test_fds[10] = { -1 }; int nr_test_fds; @@ -1243,7 +1244,7 @@ void test_ptrace_of_child(int *ptr, u16 pkey_assert(ret != -1); /* Now access from the current task, and expect NO exception: */ peek_result = read_ptr(plain_ptr); - do_not_expect_pk_fault(); + do_not_expect_pk_fault("read plain pointer after ptrace");
ret = ptrace(PTRACE_DETACH, child_pid, ignored, 0); pkey_assert(ret != -1); @@ -1287,7 +1288,7 @@ void test_executing_on_unreadable_memory */ madvise(p1, PAGE_SIZE, MADV_DONTNEED); lots_o_noops_around_write(&scratch); - do_not_expect_pk_fault(); + do_not_expect_pk_fault("executing on PROT_EXEC memory"); ptr_contents = read_ptr(p1); dprintf2("ptr (%p) contents@%d: %x\n", p1, __LINE__, ptr_contents); expected_pk_fault(pkey);
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Dave Hansen dave.hansen@linux.intel.com
[ Upstream commit 86b9eea230edf4c67d4d4a70fba9b74505867a25 ]
If we use assert(), the program "crashes". That can be scary to users, so stop doing it. Just exit with a >0 exit code instead.
Signed-off-by: Dave Hansen dave.hansen@linux.intel.com Cc: Andrew Morton akpm@linux-foundation.org Cc: Dave Hansen dave.hansen@intel.com Cc: Linus Torvalds torvalds@linux-foundation.org Cc: Michael Ellermen mpe@ellerman.id.au Cc: Peter Zijlstra peterz@infradead.org Cc: Ram Pai linuxram@us.ibm.com Cc: Shuah Khan shuah@kernel.org Cc: Thomas Gleixner tglx@linutronix.de Cc: linux-mm@kvack.org Link: http://lkml.kernel.org/r/20180509171340.E63EF7DA@viggo.jf.intel.com Signed-off-by: Ingo Molnar mingo@kernel.org Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- tools/testing/selftests/x86/protection_keys.c | 12 ++++++++---- 1 file changed, 8 insertions(+), 4 deletions(-)
--- a/tools/testing/selftests/x86/protection_keys.c +++ b/tools/testing/selftests/x86/protection_keys.c @@ -72,10 +72,9 @@ extern void abort_hooks(void); test_nr, iteration_nr); \ dprintf0("errno at assert: %d", errno); \ abort_hooks(); \ - assert(condition); \ + exit(__LINE__); \ } \ } while (0) -#define raw_assert(cond) assert(cond)
void cat_into_file(char *str, char *file) { @@ -87,12 +86,17 @@ void cat_into_file(char *str, char *file * these need to be raw because they are called under * pkey_assert() */ - raw_assert(fd >= 0); + if (fd < 0) { + fprintf(stderr, "error opening '%s'\n", str); + perror("error: "); + exit(__LINE__); + } + ret = write(fd, str, strlen(str)); if (ret != strlen(str)) { perror("write to file failed"); fprintf(stderr, "filename: '%s' str: '%s'\n", file, str); - raw_assert(0); + exit(__LINE__); } close(fd); }
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Dave Hansen dave.hansen@linux.intel.com
[ Upstream commit a50093d60464dd51d1ae0c2267b0abe9e1de77f3 ]
There is some noisy debug code at the end of the signal handler. It was disabled by an early, unconditional "return". However, that return also hid a dprint_in_signal=0, which kept dprint_in_signal=1 and effectively locked us into permanent dprint_in_signal=1 behavior.
Remove the return and the dead code, fixing dprint_in_signal.
Signed-off-by: Dave Hansen dave.hansen@linux.intel.com Cc: Andrew Morton akpm@linux-foundation.org Cc: Dave Hansen dave.hansen@intel.com Cc: Linus Torvalds torvalds@linux-foundation.org Cc: Michael Ellermen mpe@ellerman.id.au Cc: Peter Zijlstra peterz@infradead.org Cc: Ram Pai linuxram@us.ibm.com Cc: Shuah Khan shuah@kernel.org Cc: Thomas Gleixner tglx@linutronix.de Cc: linux-mm@kvack.org Link: http://lkml.kernel.org/r/20180509171342.846B9B2E@viggo.jf.intel.com Signed-off-by: Ingo Molnar mingo@kernel.org Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- tools/testing/selftests/x86/protection_keys.c | 16 ---------------- 1 file changed, 16 deletions(-)
--- a/tools/testing/selftests/x86/protection_keys.c +++ b/tools/testing/selftests/x86/protection_keys.c @@ -325,22 +325,6 @@ void signal_handler(int signum, siginfo_ dprintf1("WARNING: set PRKU=0 to allow faulting instruction to continue\n"); pkru_faults++; dprintf1("<<<<==================================================\n"); - return; - if (trapno == 14) { - fprintf(stderr, - "ERROR: In signal handler, page fault, trapno = %d, ip = %016lx\n", - trapno, ip); - fprintf(stderr, "si_addr %p\n", si->si_addr); - fprintf(stderr, "REG_ERR: %lx\n", - (unsigned long)uctxt->uc_mcontext.gregs[REG_ERR]); - exit(1); - } else { - fprintf(stderr, "unexpected trap %d! at 0x%lx\n", trapno, ip); - fprintf(stderr, "si_addr %p\n", si->si_addr); - fprintf(stderr, "REG_ERR: %lx\n", - (unsigned long)uctxt->uc_mcontext.gregs[REG_ERR]); - exit(2); - } dprint_in_signal = 0; }
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Dave Hansen dave.hansen@linux.intel.com
[ Upstream commit caf9eb6b4c82fc6cbd03697052ff22d97b0c377b ]
printf() and friends are unusable in signal handlers. They deadlock. The pkey selftest does not do any normal printing in signal handlers, only extra debugging. So, just print the format string so we get *some* output when debugging.
Signed-off-by: Dave Hansen dave.hansen@linux.intel.com Cc: Andrew Morton akpm@linux-foundation.org Cc: Dave Hansen dave.hansen@intel.com Cc: Linus Torvalds torvalds@linux-foundation.org Cc: Michael Ellermen mpe@ellerman.id.au Cc: Peter Zijlstra peterz@infradead.org Cc: Ram Pai linuxram@us.ibm.com Cc: Shuah Khan shuah@kernel.org Cc: Thomas Gleixner tglx@linutronix.de Cc: linux-mm@kvack.org Link: http://lkml.kernel.org/r/20180509171344.C53FD2F3@viggo.jf.intel.com Signed-off-by: Ingo Molnar mingo@kernel.org Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- tools/testing/selftests/x86/pkey-helpers.h | 20 ++++++++------------ 1 file changed, 8 insertions(+), 12 deletions(-)
--- a/tools/testing/selftests/x86/pkey-helpers.h +++ b/tools/testing/selftests/x86/pkey-helpers.h @@ -26,30 +26,26 @@ static inline void sigsafe_printf(const { va_list ap;
- va_start(ap, format); if (!dprint_in_signal) { + va_start(ap, format); vprintf(format, ap); + va_end(ap); } else { int ret; - int len = vsnprintf(dprint_in_signal_buffer, - DPRINT_IN_SIGNAL_BUF_SIZE, - format, ap); /* - * len is amount that would have been printed, - * but actual write is truncated at BUF_SIZE. + * No printf() functions are signal-safe. + * They deadlock easily. Write the format + * string to get some output, even if + * incomplete. */ - if (len > DPRINT_IN_SIGNAL_BUF_SIZE) - len = DPRINT_IN_SIGNAL_BUF_SIZE; - ret = write(1, dprint_in_signal_buffer, len); + ret = write(1, format, strlen(format)); if (ret < 0) - abort(); + exit(1); } - va_end(ap); } #define dprintf_level(level, args...) do { \ if (level <= DEBUG_LEVEL) \ sigsafe_printf(args); \ - fflush(NULL); \ } while (0) #define dprintf0(args...) dprintf_level(0, args) #define dprintf1(args...) dprintf_level(1, args)
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Dave Hansen dave.hansen@linux.intel.com
[ Upstream commit 7e7fd67ca39335a49619729821efb7cbdd674eb0 ]
The exec-only pkey is allocated inside the kernel and userspace is not told what it is. So, allow PK faults to occur that have an unknown key.
Signed-off-by: Dave Hansen dave.hansen@linux.intel.com Cc: Andrew Morton akpm@linux-foundation.org Cc: Dave Hansen dave.hansen@intel.com Cc: Linus Torvalds torvalds@linux-foundation.org Cc: Michael Ellermen mpe@ellerman.id.au Cc: Peter Zijlstra peterz@infradead.org Cc: Ram Pai linuxram@us.ibm.com Cc: Shuah Khan shuah@kernel.org Cc: Thomas Gleixner tglx@linutronix.de Cc: linux-mm@kvack.org Link: http://lkml.kernel.org/r/20180509171345.7FC7DA00@viggo.jf.intel.com Signed-off-by: Ingo Molnar mingo@kernel.org Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- tools/testing/selftests/x86/protection_keys.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-)
--- a/tools/testing/selftests/x86/protection_keys.c +++ b/tools/testing/selftests/x86/protection_keys.c @@ -921,13 +921,21 @@ void *malloc_pkey(long size, int prot, u }
int last_pkru_faults; +#define UNKNOWN_PKEY -2 void expected_pk_fault(int pkey) { dprintf2("%s(): last_pkru_faults: %d pkru_faults: %d\n", __func__, last_pkru_faults, pkru_faults); dprintf2("%s(%d): last_si_pkey: %d\n", __func__, pkey, last_si_pkey); pkey_assert(last_pkru_faults + 1 == pkru_faults); - pkey_assert(last_si_pkey == pkey); + + /* + * For exec-only memory, we do not know the pkey in + * advance, so skip this check. + */ + if (pkey != UNKNOWN_PKEY) + pkey_assert(last_si_pkey == pkey); + /* * The signal handler shold have cleared out PKRU to let the * test program continue. We now have to restore it.
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Dave Hansen dave.hansen@linux.intel.com
[ Upstream commit 3fcd2b2d928904cbf30b01e2c5e4f1dd2f9ab262 ]
We currently have an execute-only test, but it is for the explicit mprotect_pkey() interface. We will soon add a test for the implicit mprotect(PROT_EXEC) enterface. We need this code in both tests.
Signed-off-by: Dave Hansen dave.hansen@linux.intel.com Cc: Andrew Morton akpm@linux-foundation.org Cc: Dave Hansen dave.hansen@intel.com Cc: Linus Torvalds torvalds@linux-foundation.org Cc: Michael Ellermen mpe@ellerman.id.au Cc: Peter Zijlstra peterz@infradead.org Cc: Ram Pai linuxram@us.ibm.com Cc: Shuah Khan shuah@kernel.org Cc: Thomas Gleixner tglx@linutronix.de Cc: linux-mm@kvack.org Link: http://lkml.kernel.org/r/20180509171347.C64AB733@viggo.jf.intel.com Signed-off-by: Ingo Molnar mingo@kernel.org Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- tools/testing/selftests/x86/protection_keys.c | 21 +++++++++++++++++---- 1 file changed, 17 insertions(+), 4 deletions(-)
--- a/tools/testing/selftests/x86/protection_keys.c +++ b/tools/testing/selftests/x86/protection_keys.c @@ -1253,12 +1253,9 @@ void test_ptrace_of_child(int *ptr, u16 free(plain_ptr_unaligned); }
-void test_executing_on_unreadable_memory(int *ptr, u16 pkey) +void *get_pointer_to_instructions(void) { void *p1; - int scratch; - int ptr_contents; - int ret;
p1 = ALIGN_PTR_UP(&lots_o_noops_around_write, PAGE_SIZE); dprintf3("&lots_o_noops: %p\n", &lots_o_noops_around_write); @@ -1268,7 +1265,23 @@ void test_executing_on_unreadable_memory /* Point 'p1' at the *second* page of the function: */ p1 += PAGE_SIZE;
+ /* + * Try to ensure we fault this in on next touch to ensure + * we get an instruction fault as opposed to a data one + */ madvise(p1, PAGE_SIZE, MADV_DONTNEED); + + return p1; +} + +void test_executing_on_unreadable_memory(int *ptr, u16 pkey) +{ + void *p1; + int scratch; + int ptr_contents; + int ret; + + p1 = get_pointer_to_instructions(); lots_o_noops_around_write(&scratch); ptr_contents = read_ptr(p1); dprintf2("ptr (%p) contents@%d: %x\n", p1, __LINE__, ptr_contents);
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Dave Hansen dave.hansen@linux.intel.com
[ Upstream commit 6af17cf89e99b64cf1f660bf848755442ab2f047 ]
Under the covers, implement executable-only memory with protection keys when userspace calls mprotect(PROT_EXEC).
But, we did not have a selftest for that. Now we do.
Signed-off-by: Dave Hansen dave.hansen@linux.intel.com Cc: Andrew Morton akpm@linux-foundation.org Cc: Dave Hansen dave.hansen@intel.com Cc: Linus Torvalds torvalds@linux-foundation.org Cc: Michael Ellermen mpe@ellerman.id.au Cc: Peter Zijlstra peterz@infradead.org Cc: Ram Pai linuxram@us.ibm.com Cc: Shuah Khan shuah@kernel.org Cc: Thomas Gleixner tglx@linutronix.de Cc: linux-mm@kvack.org Link: http://lkml.kernel.org/r/20180509171348.9EEE4BEF@viggo.jf.intel.com Signed-off-by: Ingo Molnar mingo@kernel.org Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- tools/testing/selftests/x86/protection_keys.c | 44 ++++++++++++++++++++++++++ 1 file changed, 44 insertions(+)
--- a/tools/testing/selftests/x86/protection_keys.c +++ b/tools/testing/selftests/x86/protection_keys.c @@ -1303,6 +1303,49 @@ void test_executing_on_unreadable_memory expected_pk_fault(pkey); }
+void test_implicit_mprotect_exec_only_memory(int *ptr, u16 pkey) +{ + void *p1; + int scratch; + int ptr_contents; + int ret; + + dprintf1("%s() start\n", __func__); + + p1 = get_pointer_to_instructions(); + lots_o_noops_around_write(&scratch); + ptr_contents = read_ptr(p1); + dprintf2("ptr (%p) contents@%d: %x\n", p1, __LINE__, ptr_contents); + + /* Use a *normal* mprotect(), not mprotect_pkey(): */ + ret = mprotect(p1, PAGE_SIZE, PROT_EXEC); + pkey_assert(!ret); + + dprintf2("pkru: %x\n", rdpkru()); + + /* Make sure this is an *instruction* fault */ + madvise(p1, PAGE_SIZE, MADV_DONTNEED); + lots_o_noops_around_write(&scratch); + do_not_expect_pk_fault("executing on PROT_EXEC memory"); + ptr_contents = read_ptr(p1); + dprintf2("ptr (%p) contents@%d: %x\n", p1, __LINE__, ptr_contents); + expected_pk_fault(UNKNOWN_PKEY); + + /* + * Put the memory back to non-PROT_EXEC. Should clear the + * exec-only pkey off the VMA and allow it to be readable + * again. Go to PROT_NONE first to check for a kernel bug + * that did not clear the pkey when doing PROT_NONE. + */ + ret = mprotect(p1, PAGE_SIZE, PROT_NONE); + pkey_assert(!ret); + + ret = mprotect(p1, PAGE_SIZE, PROT_READ|PROT_EXEC); + pkey_assert(!ret); + ptr_contents = read_ptr(p1); + do_not_expect_pk_fault("plain read on recently PROT_EXEC area"); +} + void test_mprotect_pkey_on_unsupported_cpu(int *ptr, u16 pkey) { int size = PAGE_SIZE; @@ -1327,6 +1370,7 @@ void (*pkey_tests[])(int *ptr, u16 pkey) test_kernel_gup_of_access_disabled_region, test_kernel_gup_write_to_write_disabled_region, test_executing_on_unreadable_memory, + test_implicit_mprotect_exec_only_memory, test_ptrace_of_child, test_pkey_syscalls_on_non_allocated_pkey, test_pkey_syscalls_bad_args,
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Dave Hansen dave.hansen@linux.intel.com
[ Upstream commit f50b4878329ab61d8e05796f655adeb6f5fb57c6 ]
In our "exhaust all pkeys" test, we make sure that there is the expected number available. Turns out that the test did not cover the execute-only key, but discussed it anyway. It did *not* discuss the test-allocated key.
Now that we have a test for the mprotect(PROT_EXEC) case, this off-by-one issue showed itself. Correct the off-by- one and add the explanation for the case we missed.
Signed-off-by: Dave Hansen dave.hansen@linux.intel.com Cc: Andrew Morton akpm@linux-foundation.org Cc: Dave Hansen dave.hansen@intel.com Cc: Linus Torvalds torvalds@linux-foundation.org Cc: Michael Ellermen mpe@ellerman.id.au Cc: Peter Zijlstra peterz@infradead.org Cc: Ram Pai linuxram@us.ibm.com Cc: Shuah Khan shuah@kernel.org Cc: Thomas Gleixner tglx@linutronix.de Cc: linux-mm@kvack.org Link: http://lkml.kernel.org/r/20180509171350.E1656B95@viggo.jf.intel.com Signed-off-by: Ingo Molnar mingo@kernel.org Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- tools/testing/selftests/x86/protection_keys.c | 13 ++++++++----- 1 file changed, 8 insertions(+), 5 deletions(-)
--- a/tools/testing/selftests/x86/protection_keys.c +++ b/tools/testing/selftests/x86/protection_keys.c @@ -1163,12 +1163,15 @@ void test_pkey_alloc_exhaust(int *ptr, u pkey_assert(i < NR_PKEYS*2);
/* - * There are 16 pkeys supported in hardware. One is taken - * up for the default (0) and another can be taken up by - * an execute-only mapping. Ensure that we can allocate - * at least 14 (16-2). + * There are 16 pkeys supported in hardware. Three are + * allocated by the time we get here: + * 1. The default key (0) + * 2. One possibly consumed by an execute-only mapping. + * 3. One allocated by the test code and passed in via + * 'pkey' to this function. + * Ensure that we can allocate at least another 13 (16-3). */ - pkey_assert(i >= NR_PKEYS-2); + pkey_assert(i >= NR_PKEYS-3);
for (i = 0; i < nr_allocated_pkeys; i++) { err = sys_pkey_free(allocated_pkeys[i]);
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Dave Hansen dave.hansen@linux.intel.com
[ Upstream commit 3d64f4ed15c3c53dba4c514bf59c334464dee373 ]
We dump out the entire area of the siginfo where the si_pkey_ptr is supposed to be. But, we do some math on the poitner, which is a u32. We intended to do byte math, not u32 math on the pointer.
Cast it over to a u8* so it works.
Also, move this block of code to below th si_code check. It doesn't hurt anything, but the si_pkey field is gibberish for other signal types.
Signed-off-by: Dave Hansen dave.hansen@linux.intel.com Cc: Andrew Morton akpm@linux-foundation.org Cc: Dave Hansen dave.hansen@intel.com Cc: Linus Torvalds torvalds@linux-foundation.org Cc: Michael Ellermen mpe@ellerman.id.au Cc: Peter Zijlstra peterz@infradead.org Cc: Ram Pai linuxram@us.ibm.com Cc: Shuah Khan shuah@kernel.org Cc: Thomas Gleixner tglx@linutronix.de Cc: linux-mm@kvack.org Link: http://lkml.kernel.org/r/20180509171352.9BE09819@viggo.jf.intel.com Signed-off-by: Ingo Molnar mingo@kernel.org Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- tools/testing/selftests/x86/protection_keys.c | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-)
--- a/tools/testing/selftests/x86/protection_keys.c +++ b/tools/testing/selftests/x86/protection_keys.c @@ -303,13 +303,6 @@ void signal_handler(int signum, siginfo_ dump_mem(pkru_ptr - 128, 256); pkey_assert(*pkru_ptr);
- si_pkey_ptr = (u32 *)(((u8 *)si) + si_pkey_offset); - dprintf1("si_pkey_ptr: %p\n", si_pkey_ptr); - dump_mem(si_pkey_ptr - 8, 24); - siginfo_pkey = *si_pkey_ptr; - pkey_assert(siginfo_pkey < NR_PKEYS); - last_si_pkey = siginfo_pkey; - if ((si->si_code == SEGV_MAPERR) || (si->si_code == SEGV_ACCERR) || (si->si_code == SEGV_BNDERR)) { @@ -317,6 +310,13 @@ void signal_handler(int signum, siginfo_ exit(4); }
+ si_pkey_ptr = (u32 *)(((u8 *)si) + si_pkey_offset); + dprintf1("si_pkey_ptr: %p\n", si_pkey_ptr); + dump_mem((u8 *)si_pkey_ptr - 8, 24); + siginfo_pkey = *si_pkey_ptr; + pkey_assert(siginfo_pkey < NR_PKEYS); + last_si_pkey = siginfo_pkey; + dprintf1("signal pkru from xsave: %08x\n", *pkru_ptr); /* need __rdpkru() version so we do not do shadow_pkru checking */ dprintf1("signal pkru from pkru: %08x\n", __rdpkru());
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Dave Hansen dave.hansen@linux.intel.com
[ Upstream commit acb25d761d6f2f64e785ccefc71e54f244f1eda4 ]
This makes it possible to to tell what 'prot' a given allocation is supposed to have. That way, if we want to change just the pkey, we know what 'prot' to pass to mprotect_pkey().
Also, keep a record of the most recent allocation so the tests can easily find it.
Signed-off-by: Dave Hansen dave.hansen@linux.intel.com Cc: Andrew Morton akpm@linux-foundation.org Cc: Dave Hansen dave.hansen@intel.com Cc: Linus Torvalds torvalds@linux-foundation.org Cc: Michael Ellermen mpe@ellerman.id.au Cc: Peter Zijlstra peterz@infradead.org Cc: Ram Pai linuxram@us.ibm.com Cc: Shuah Khan shuah@kernel.org Cc: Thomas Gleixner tglx@linutronix.de Cc: linux-mm@kvack.org Link: http://lkml.kernel.org/r/20180509171354.AA23E228@viggo.jf.intel.com Signed-off-by: Ingo Molnar mingo@kernel.org Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- tools/testing/selftests/x86/protection_keys.c | 14 +++++++++----- 1 file changed, 9 insertions(+), 5 deletions(-)
--- a/tools/testing/selftests/x86/protection_keys.c +++ b/tools/testing/selftests/x86/protection_keys.c @@ -677,10 +677,12 @@ int mprotect_pkey(void *ptr, size_t size struct pkey_malloc_record { void *ptr; long size; + int prot; }; struct pkey_malloc_record *pkey_malloc_records; +struct pkey_malloc_record *pkey_last_malloc_record; long nr_pkey_malloc_records; -void record_pkey_malloc(void *ptr, long size) +void record_pkey_malloc(void *ptr, long size, int prot) { long i; struct pkey_malloc_record *rec = NULL; @@ -712,6 +714,8 @@ void record_pkey_malloc(void *ptr, long (int)(rec - pkey_malloc_records), rec, ptr, size); rec->ptr = ptr; rec->size = size; + rec->prot = prot; + pkey_last_malloc_record = rec; nr_pkey_malloc_records++; }
@@ -756,7 +760,7 @@ void *malloc_pkey_with_mprotect(long siz pkey_assert(ptr != (void *)-1); ret = mprotect_pkey((void *)ptr, PAGE_SIZE, prot, pkey); pkey_assert(!ret); - record_pkey_malloc(ptr, size); + record_pkey_malloc(ptr, size, prot); rdpkru();
dprintf1("%s() for pkey %d @ %p\n", __func__, pkey, ptr); @@ -777,7 +781,7 @@ void *malloc_pkey_anon_huge(long size, i size = ALIGN_UP(size, HPAGE_SIZE * 2); ptr = mmap(NULL, size, PROT_NONE, MAP_ANONYMOUS|MAP_PRIVATE, -1, 0); pkey_assert(ptr != (void *)-1); - record_pkey_malloc(ptr, size); + record_pkey_malloc(ptr, size, prot); mprotect_pkey(ptr, size, prot, pkey);
dprintf1("unaligned ptr: %p\n", ptr); @@ -850,7 +854,7 @@ void *malloc_pkey_hugetlb(long size, int pkey_assert(ptr != (void *)-1); mprotect_pkey(ptr, size, prot, pkey);
- record_pkey_malloc(ptr, size); + record_pkey_malloc(ptr, size, prot);
dprintf1("mmap()'d hugetlbfs for pkey %d @ %p\n", pkey, ptr); return ptr; @@ -872,7 +876,7 @@ void *malloc_pkey_mmap_dax(long size, in
mprotect_pkey(ptr, size, prot, pkey);
- record_pkey_malloc(ptr, size); + record_pkey_malloc(ptr, size, prot);
dprintf1("mmap()'d for pkey %d @ %p\n", pkey, ptr); close(fd);
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Dave Hansen dave.hansen@linux.intel.com
[ Upstream commit 3488a600d90bcaf061b104dbcfbdc8d99b398312 ]
Protection key 0 is the default key for all memory and will not normally come back from pkey_alloc(). But, you might still want pass it to mprotect_pkey().
This check ensures that you can use pkey 0.
Signed-off-by: Dave Hansen dave.hansen@linux.intel.com Cc: Andrew Morton akpm@linux-foundation.org Cc: Dave Hansen dave.hansen@intel.com Cc: Linus Torvalds torvalds@linux-foundation.org Cc: Michael Ellermen mpe@ellerman.id.au Cc: Peter Zijlstra peterz@infradead.org Cc: Ram Pai linuxram@us.ibm.com Cc: Shuah Khan shuah@kernel.org Cc: Thomas Gleixner tglx@linutronix.de Cc: linux-mm@kvack.org Link: http://lkml.kernel.org/r/20180509171356.9E40B254@viggo.jf.intel.com Signed-off-by: Ingo Molnar mingo@kernel.org Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- tools/testing/selftests/x86/protection_keys.c | 30 ++++++++++++++++++++++++++ 1 file changed, 30 insertions(+)
--- a/tools/testing/selftests/x86/protection_keys.c +++ b/tools/testing/selftests/x86/protection_keys.c @@ -1184,6 +1184,35 @@ void test_pkey_alloc_exhaust(int *ptr, u } }
+/* + * pkey 0 is special. It is allocated by default, so you do not + * have to call pkey_alloc() to use it first. Make sure that it + * is usable. + */ +void test_mprotect_with_pkey_0(int *ptr, u16 pkey) +{ + long size; + int prot; + + assert(pkey_last_malloc_record); + size = pkey_last_malloc_record->size; + /* + * This is a bit of a hack. But mprotect() requires + * huge-page-aligned sizes when operating on hugetlbfs. + * So, make sure that we use something that's a multiple + * of a huge page when we can. + */ + if (size >= HPAGE_SIZE) + size = HPAGE_SIZE; + prot = pkey_last_malloc_record->prot; + + /* Use pkey 0 */ + mprotect_pkey(ptr, size, prot, 0); + + /* Make sure that we can set it back to the original pkey. */ + mprotect_pkey(ptr, size, prot, pkey); +} + void test_ptrace_of_child(int *ptr, u16 pkey) { __attribute__((__unused__)) int peek_result; @@ -1378,6 +1407,7 @@ void (*pkey_tests[])(int *ptr, u16 pkey) test_kernel_gup_write_to_write_disabled_region, test_executing_on_unreadable_memory, test_implicit_mprotect_exec_only_memory, + test_mprotect_with_pkey_0, test_ptrace_of_child, test_pkey_syscalls_on_non_allocated_pkey, test_pkey_syscalls_bad_args,
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: David Howells dhowells@redhat.com
[ Upstream commit 01fd79e6de74a447c5657913a335d9ce6508cdb1 ]
The parsing of port specifiers in the address list obtained from the DNS resolution upcall doesn't work as in4_pton() and in6_pton() will fail on encountering an unexpected delimiter (in this case, the '+' marking the port number). However, in*_pton() can't be given multiple specifiers.
Fix this by finding the delimiter in advance and not relying on in*_pton() to find the end of the address for us.
Fixes: 8b2a464ced77 ("afs: Add an address list concept") Signed-off-by: David Howells dhowells@redhat.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- fs/afs/addr_list.c | 25 +++++++++++++++---------- 1 file changed, 15 insertions(+), 10 deletions(-)
--- a/fs/afs/addr_list.c +++ b/fs/afs/addr_list.c @@ -121,7 +121,7 @@ struct afs_addr_list *afs_parse_text_add p = text; do { struct sockaddr_rxrpc *srx = &alist->addrs[alist->nr_addrs]; - char tdelim = delim; + const char *q, *stop;
if (*p == delim) { p++; @@ -130,28 +130,33 @@ struct afs_addr_list *afs_parse_text_add
if (*p == '[') { p++; - tdelim = ']'; + q = memchr(p, ']', end - p); + } else { + for (q = p; q < end; q++) + if (*q == '+' || *q == delim) + break; }
- if (in4_pton(p, end - p, + if (in4_pton(p, q - p, (u8 *)&srx->transport.sin6.sin6_addr.s6_addr32[3], - tdelim, &p)) { + -1, &stop)) { srx->transport.sin6.sin6_addr.s6_addr32[0] = 0; srx->transport.sin6.sin6_addr.s6_addr32[1] = 0; srx->transport.sin6.sin6_addr.s6_addr32[2] = htonl(0xffff); - } else if (in6_pton(p, end - p, + } else if (in6_pton(p, q - p, srx->transport.sin6.sin6_addr.s6_addr, - tdelim, &p)) { + -1, &stop)) { /* Nothing to do */ } else { goto bad_address; }
- if (tdelim == ']') { - if (p == end || *p != ']') - goto bad_address; + if (stop != q) + goto bad_address; + + p = q; + if (q < end && *q == ']') p++; - }
if (p < end) { if (*p == '+') {
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: David Howells dhowells@redhat.com
[ Upstream commit d4a96bec7a7362834ef5c31d7b2cc9bf36eb0570 ]
The refcounting on afs_cb_interest struct objects in afs_register_server_cb_interest() is wrong as it uses the server list entry's call back interest pointer without regard for the fact that it might be replaced at any time and the object thrown away.
Fix this by:
(1) Put a lock on the afs_server_list struct that can be used to mediate access to the callback interest pointers in the servers array.
(2) Keep a ref on the callback interest that we get from the entry.
(3) Dropping the old reference held by vnode->cb_interest if we replace the pointer.
Fixes: c435ee34551e ("afs: Overhaul the callback handling") Signed-off-by: David Howells dhowells@redhat.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- fs/afs/callback.c | 56 ++++++++++++++++++++++++++++++++++++--------------- fs/afs/internal.h | 7 ++++-- fs/afs/rotate.c | 4 +-- fs/afs/server_list.c | 7 ++++-- 4 files changed, 52 insertions(+), 22 deletions(-)
--- a/fs/afs/callback.c +++ b/fs/afs/callback.c @@ -23,36 +23,55 @@ /* * Set up an interest-in-callbacks record for a volume on a server and * register it with the server. - * - Called with volume->server_sem held. + * - Called with vnode->io_lock held. */ int afs_register_server_cb_interest(struct afs_vnode *vnode, - struct afs_server_entry *entry) + struct afs_server_list *slist, + unsigned int index) { - struct afs_cb_interest *cbi = entry->cb_interest, *vcbi, *new, *x; + struct afs_server_entry *entry = &slist->servers[index]; + struct afs_cb_interest *cbi, *vcbi, *new, *old; struct afs_server *server = entry->server;
again: + if (vnode->cb_interest && + likely(vnode->cb_interest == entry->cb_interest)) + return 0; + + read_lock(&slist->lock); + cbi = afs_get_cb_interest(entry->cb_interest); + read_unlock(&slist->lock); + vcbi = vnode->cb_interest; if (vcbi) { - if (vcbi == cbi) + if (vcbi == cbi) { + afs_put_cb_interest(afs_v2net(vnode), cbi); return 0; + }
+ /* Use a new interest in the server list for the same server + * rather than an old one that's still attached to a vnode. + */ if (cbi && vcbi->server == cbi->server) { write_seqlock(&vnode->cb_lock); - vnode->cb_interest = afs_get_cb_interest(cbi); + old = vnode->cb_interest; + vnode->cb_interest = cbi; write_sequnlock(&vnode->cb_lock); - afs_put_cb_interest(afs_v2net(vnode), cbi); + afs_put_cb_interest(afs_v2net(vnode), old); return 0; }
+ /* Re-use the one attached to the vnode. */ if (!cbi && vcbi->server == server) { - afs_get_cb_interest(vcbi); - x = cmpxchg(&entry->cb_interest, cbi, vcbi); - if (x != cbi) { - cbi = x; - afs_put_cb_interest(afs_v2net(vnode), vcbi); + write_lock(&slist->lock); + if (entry->cb_interest) { + write_unlock(&slist->lock); + afs_put_cb_interest(afs_v2net(vnode), cbi); goto again; } + + entry->cb_interest = cbi; + write_unlock(&slist->lock); return 0; } } @@ -72,13 +91,16 @@ again: list_add_tail(&new->cb_link, &server->cb_interests); write_unlock(&server->cb_break_lock);
- x = cmpxchg(&entry->cb_interest, cbi, new); - if (x == cbi) { + write_lock(&slist->lock); + if (!entry->cb_interest) { + entry->cb_interest = afs_get_cb_interest(new); cbi = new; + new = NULL; } else { - cbi = x; - afs_put_cb_interest(afs_v2net(vnode), new); + cbi = afs_get_cb_interest(entry->cb_interest); } + write_unlock(&slist->lock); + afs_put_cb_interest(afs_v2net(vnode), new); }
ASSERT(cbi); @@ -88,11 +110,13 @@ again: */ write_seqlock(&vnode->cb_lock);
- vnode->cb_interest = afs_get_cb_interest(cbi); + old = vnode->cb_interest; + vnode->cb_interest = cbi; vnode->cb_s_break = cbi->server->cb_s_break; clear_bit(AFS_VNODE_CB_PROMISED, &vnode->flags);
write_sequnlock(&vnode->cb_lock); + afs_put_cb_interest(afs_v2net(vnode), old); return 0; }
--- a/fs/afs/internal.h +++ b/fs/afs/internal.h @@ -399,6 +399,7 @@ struct afs_server_list { unsigned short index; /* Server currently in use */ unsigned short vnovol_mask; /* Servers to be skipped due to VNOVOL */ unsigned int seq; /* Set to ->servers_seq when installed */ + rwlock_t lock; struct afs_server_entry servers[]; };
@@ -605,13 +606,15 @@ extern void afs_init_callback_state(stru extern void afs_break_callback(struct afs_vnode *); extern void afs_break_callbacks(struct afs_server *, size_t,struct afs_callback[]);
-extern int afs_register_server_cb_interest(struct afs_vnode *, struct afs_server_entry *); +extern int afs_register_server_cb_interest(struct afs_vnode *, + struct afs_server_list *, unsigned int); extern void afs_put_cb_interest(struct afs_net *, struct afs_cb_interest *); extern void afs_clear_callback_interests(struct afs_net *, struct afs_server_list *);
static inline struct afs_cb_interest *afs_get_cb_interest(struct afs_cb_interest *cbi) { - refcount_inc(&cbi->usage); + if (cbi) + refcount_inc(&cbi->usage); return cbi; }
--- a/fs/afs/rotate.c +++ b/fs/afs/rotate.c @@ -350,8 +350,8 @@ use_server: * break request before we've finished decoding the reply and * installing the vnode. */ - fc->ac.error = afs_register_server_cb_interest( - vnode, &fc->server_list->servers[fc->index]); + fc->ac.error = afs_register_server_cb_interest(vnode, fc->server_list, + fc->index); if (fc->ac.error < 0) goto failed;
--- a/fs/afs/server_list.c +++ b/fs/afs/server_list.c @@ -49,6 +49,7 @@ struct afs_server_list *afs_alloc_server goto error;
refcount_set(&slist->usage, 1); + rwlock_init(&slist->lock);
/* Make sure a records exists for each server in the list. */ for (i = 0; i < vldb->nr_servers; i++) { @@ -64,9 +65,11 @@ struct afs_server_list *afs_alloc_server goto error_2; }
- /* Insertion-sort by server pointer */ + /* Insertion-sort by UUID */ for (j = 0; j < slist->nr_servers; j++) - if (slist->servers[j].server >= server) + if (memcmp(&slist->servers[j].server->uuid, + &server->uuid, + sizeof(server->uuid)) >= 0) break; if (j < slist->nr_servers) { if (slist->servers[j].server == server) {
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: David Howells dhowells@redhat.com
[ Upstream commit ec5a3b4b507efca903d848518dcf2ebf7b04b466 ]
The server rotation algorithm just gives up if it fails to probe a fileserver. Fix this by rotating to the next fileserver instead.
Fixes: d2ddc776a458 ("afs: Overhaul volume and server record caching and fileserver rotation") Signed-off-by: David Howells dhowells@redhat.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- fs/afs/rotate.c | 12 ++++++++++-- 1 file changed, 10 insertions(+), 2 deletions(-)
--- a/fs/afs/rotate.c +++ b/fs/afs/rotate.c @@ -369,8 +369,16 @@ use_server: if (!test_bit(AFS_SERVER_FL_PROBED, &server->flags)) { fc->ac.alist = afs_get_addrlist(alist);
- if (!afs_probe_fileserver(fc)) - goto failed; + if (!afs_probe_fileserver(fc)) { + switch (fc->ac.error) { + case -ENOMEM: + case -ERESTARTSYS: + case -EINTR: + goto failed; + default: + goto next_server; + } + } }
if (!fc->ac.alist)
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Ben Hutchings ben@decadent.org.uk
[ Upstream commit ea739a287f4f16d6250bea779a1026ead79695f2 ]
Commit 9e343e87d2c4 ("mtd: cfi: convert inline functions to macros") changed map_word_andequal() into a macro, but also changed the right hand side of the comparison from val3 to val2. Change it back to use val3 on the right hand side.
Thankfully this did not cause a regression because all callers currently pass the same argument for val2 and val3.
Fixes: 9e343e87d2c4 ("mtd: cfi: convert inline functions to macros") Signed-off-by: Ben Hutchings ben@decadent.org.uk Signed-off-by: Boris Brezillon boris.brezillon@bootlin.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- include/linux/mtd/map.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/include/linux/mtd/map.h +++ b/include/linux/mtd/map.h @@ -312,7 +312,7 @@ void map_destroy(struct mtd_info *mtd); ({ \ int i, ret = 1; \ for (i = 0; i < map_words(map); i++) { \ - if (((val1).x[i] & (val2).x[i]) != (val2).x[i]) { \ + if (((val1).x[i] & (val2).x[i]) != (val3).x[i]) { \ ret = 0; \ break; \ } \
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: David Howells dhowells@redhat.com
[ Upstream commit 3d9fa91161387ee629e7a07c47934d119910c8ae ]
If a volume location record lists multiple file servers for a volume, then it's possible that due to a misconfiguration or a changing configuration that one of the file servers doesn't know about it yet and will abort VNOVOL. Currently, the rotation algorithm will stop with EREMOTEIO.
Fix this by moving on to try the next server if VNOVOL is returned. Once all the servers have been tried and the record rechecked, the algorithm will stop with EREMOTEIO or ENOMEDIUM.
Fixes: d2ddc776a458 ("afs: Overhaul volume and server record caching and fileserver rotation") Reported-by: Marc Dionne marc.dionne@auristor.com Signed-off-by: David Howells dhowells@redhat.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- fs/afs/rotate.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
--- a/fs/afs/rotate.c +++ b/fs/afs/rotate.c @@ -179,7 +179,7 @@ bool afs_select_fileserver(struct afs_fs */ if (fc->flags & AFS_FS_CURSOR_VNOVOL) { fc->ac.error = -EREMOTEIO; - goto failed; + goto next_server; }
write_lock(&vnode->volume->servers_lock); @@ -201,7 +201,7 @@ bool afs_select_fileserver(struct afs_fs */ if (vnode->volume->servers == fc->server_list) { fc->ac.error = -EREMOTEIO; - goto failed; + goto next_server; }
/* Try again */
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: David Howells dhowells@redhat.com
[ Upstream commit 001ab5a67ee5d191c64aebf4b4ef8c7a0dcfd2bc ]
Fix the handling of the CB.InitCallBackState3 service call to find the record of a server that we're using by looking it up by the UUID passed as the parameter rather than by its address (of which it might have many, and which may change).
Fixes: c35eccb1f614 ("[AFS]: Implement the CB.InitCallBackState3 operation.") Signed-off-by: David Howells dhowells@redhat.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- fs/afs/cmservice.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-)
--- a/fs/afs/cmservice.c +++ b/fs/afs/cmservice.c @@ -341,7 +341,6 @@ static int afs_deliver_cb_init_call_back */ static int afs_deliver_cb_init_call_back_state3(struct afs_call *call) { - struct sockaddr_rxrpc srx; struct afs_server *server; struct afs_uuid *r; unsigned loop; @@ -398,8 +397,9 @@ static int afs_deliver_cb_init_call_back
/* we'll need the file server record as that tells us which set of * vnodes to operate upon */ - rxrpc_kernel_get_peer(call->net->socket, call->rxcall, &srx); - server = afs_find_server(call->net, &srx); + rcu_read_lock(); + server = afs_find_server_by_uuid(call->net, call->request); + rcu_read_unlock(); if (!server) return -ENOTCONN; call->cm_server = server;
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Marc Dionne marc.dionne@auristor.com
[ Upstream commit f9c1bba3d392843f046d2ee27b4dfcec989d8a4b ]
The code that looks up servers by addresses makes the assumption that the list of addresses for a server is sorted. It exits the loop if it finds that the target address is larger than the current candidate. As the list is not currently sorted, this can lead to a failure to find a matching server, which can cause callbacks from that server to be ignored.
Remove the early exit case so that the complete list is searched.
Fixes: d2ddc776a458 ("afs: Overhaul volume and server record caching and fileserver rotation") Signed-off-by: Marc Dionne marc.dionne@auristor.com Signed-off-by: David Howells dhowells@redhat.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- fs/afs/server.c | 13 ------------- 1 file changed, 13 deletions(-)
--- a/fs/afs/server.c +++ b/fs/afs/server.c @@ -66,12 +66,6 @@ struct afs_server *afs_find_server(struc sizeof(struct in6_addr)); if (diff == 0) goto found; - if (diff < 0) { - // TODO: Sort the list - //if (i == alist->nr_ipv4) - // goto not_found; - break; - } } } } else { @@ -85,17 +79,10 @@ struct afs_server *afs_find_server(struc (u32)b->sin6_addr.s6_addr32[3]); if (diff == 0) goto found; - if (diff < 0) { - // TODO: Sort the list - //if (i == 0) - // goto not_found; - break; - } } } }
- //not_found: server = NULL; found: if (server && !atomic_inc_not_zero(&server->usage))
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: David Howells dhowells@redhat.com
[ Upstream commit 4776cab43fd3111618112737a257dc3ef368eddd ]
Some AFS servers refuse to accept unencrypted traffic, so can't be accessed with kAFS. Set the AF_RXRPC security level to encrypt client calls to deal with this.
Note that incoming service calls are set by the remote client and so aren't affected by this.
This requires an AF_RXRPC patch to pass the value set by setsockopt to calls begun by the kernel.
Signed-off-by: David Howells dhowells@redhat.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- fs/afs/rxrpc.c | 7 +++++++ 1 file changed, 7 insertions(+)
--- a/fs/afs/rxrpc.c +++ b/fs/afs/rxrpc.c @@ -41,6 +41,7 @@ int afs_open_socket(struct afs_net *net) { struct sockaddr_rxrpc srx; struct socket *socket; + unsigned int min_level; int ret;
_enter(""); @@ -60,6 +61,12 @@ int afs_open_socket(struct afs_net *net) srx.transport.sin6.sin6_family = AF_INET6; srx.transport.sin6.sin6_port = htons(AFS_CM_PORT);
+ min_level = RXRPC_SECURITY_ENCRYPT; + ret = kernel_setsockopt(socket, SOL_RXRPC, RXRPC_MIN_SECURITY_LEVEL, + (void *)&min_level, sizeof(min_level)); + if (ret < 0) + goto error_2; + ret = kernel_bind(socket, (struct sockaddr *) &srx, sizeof(srx)); if (ret == -EADDRINUSE) { srx.transport.sin6.sin6_port = 0;
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Russell King rmk+kernel@armlinux.org.uk
[ Upstream commit 9954b80b8c0e8abc98e17bba0fccd9876211ceaa ]
platform_domain_notifier contains a variable sized array, which the pm_clk_notify() notifier treats as a NULL terminated array:
for (con_id = clknb->con_ids; *con_id; con_id++) pm_clk_add(dev, *con_id);
Omitting the initialiser for con_ids means that the array is zero sized, and there is no NULL terminator. This leads to pm_clk_notify() overrunning into what ever structure follows, which may not be NULL. This leads to an oops:
Unable to handle kernel NULL pointer dereference at virtual address 0000008c pgd = c0003000 [0000008c] *pgd=80000800004003c, *pmd=00000000c Internal error: Oops: 206 [#1] PREEMPT SMP ARM Modules linked in:c CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.16.0+ #9 Hardware name: Keystone PC is at strlen+0x0/0x34 LR is at kstrdup+0x18/0x54 pc : [<c0623340>] lr : [<c0111d6c>] psr: 20000013 sp : eec73dc0 ip : eed780c0 fp : 00000001 r10: 00000000 r9 : 00000000 r8 : eed71e10 r7 : 0000008c r6 : 0000008c r5 : 014000c0 r4 : c03a6ff4 r3 : c09445d0 r2 : 00000000 r1 : 014000c0 r0 : 0000008c Flags: nzCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment user Control: 30c5387d Table: 00003000 DAC: fffffffd Process swapper/0 (pid: 1, stack limit = 0xeec72210) Stack: (0xeec73dc0 to 0xeec74000) ... [<c0623340>] (strlen) from [<c0111d6c>] (kstrdup+0x18/0x54) [<c0111d6c>] (kstrdup) from [<c03a6ff4>] (__pm_clk_add+0x58/0x120) [<c03a6ff4>] (__pm_clk_add) from [<c03a731c>] (pm_clk_notify+0x64/0xa8) [<c03a731c>] (pm_clk_notify) from [<c004614c>] (notifier_call_chain+0x44/0x84) [<c004614c>] (notifier_call_chain) from [<c0046320>] (__blocking_notifier_call_chain+0x48/0x60) [<c0046320>] (__blocking_notifier_call_chain) from [<c0046350>] (blocking_notifier_call_chain+0x18/0x20) [<c0046350>] (blocking_notifier_call_chain) from [<c0390234>] (device_add+0x36c/0x534) [<c0390234>] (device_add) from [<c047fc00>] (of_platform_device_create_pdata+0x70/0xa4) [<c047fc00>] (of_platform_device_create_pdata) from [<c047fea0>] (of_platform_bus_create+0xf0/0x1ec) [<c047fea0>] (of_platform_bus_create) from [<c047fff8>] (of_platform_populate+0x5c/0xac) [<c047fff8>] (of_platform_populate) from [<c08b1f04>] (of_platform_default_populate_init+0x8c/0xa8) [<c08b1f04>] (of_platform_default_populate_init) from [<c000a78c>] (do_one_initcall+0x3c/0x164) [<c000a78c>] (do_one_initcall) from [<c087bd9c>] (kernel_init_freeable+0x10c/0x1d0) [<c087bd9c>] (kernel_init_freeable) from [<c0628db0>] (kernel_init+0x8/0xf0) [<c0628db0>] (kernel_init) from [<c00090d8>] (ret_from_fork+0x14/0x3c) Exception stack(0xeec73fb0 to 0xeec73ff8) 3fa0: 00000000 00000000 00000000 00000000 3fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 3fe0: 00000000 00000000 00000000 00000000 00000013 00000000 Code: e3520000 1afffff7 e12fff1e c0801730 (e5d02000) ---[ end trace cafa8f148e262e80 ]---
Fix this by adding the necessary initialiser.
Fixes: fc20ffe1213b ("ARM: keystone: add PM domain support for clock management") Signed-off-by: Russell King rmk+kernel@armlinux.org.uk Acked-by: Santosh Shilimkar ssantosh@kernel.org Signed-off-by: Olof Johansson olof@lixom.net
Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/arm/mach-keystone/pm_domain.c | 1 + 1 file changed, 1 insertion(+)
--- a/arch/arm/mach-keystone/pm_domain.c +++ b/arch/arm/mach-keystone/pm_domain.c @@ -29,6 +29,7 @@ static struct dev_pm_domain keystone_pm_
static struct pm_clk_notifier_block platform_domain_notifier = { .pm_domain = &keystone_pm_domain, + .con_ids = { NULL }, };
static const struct of_device_id of_keystone_table[] = {
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Peter Rosin peda@axentia.se
[ Upstream commit de9a8634f1cb4560a35696d472cc7f1383d9b866 ]
Returning zero is wrong in this case.
Signed-off-by: Peter Rosin peda@axentia.se Signed-off-by: Wolfram Sang wsa@the-dreams.de Fixes: 1b144df1d7d6 ("i2c: New PMC MSP71xx TWI bus driver") Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/i2c/busses/i2c-pmcmsp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/i2c/busses/i2c-pmcmsp.c +++ b/drivers/i2c/busses/i2c-pmcmsp.c @@ -567,7 +567,7 @@ static int pmcmsptwi_master_xfer(struct return -1; }
- return 0; + return num; }
static u32 pmcmsptwi_i2c_func(struct i2c_adapter *adapter)
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Peter Rosin peda@axentia.se
[ Upstream commit 12d9bbc5a7f347eaa65ff2a9d34995cadc05eb1b ]
Returning -1 (-EPERM) is not appropriate here, go with -EIO.
Signed-off-by: Peter Rosin peda@axentia.se Signed-off-by: Wolfram Sang wsa@the-dreams.de Fixes: 1b144df1d7d6 ("i2c: New PMC MSP71xx TWI bus driver") Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/i2c/busses/i2c-pmcmsp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/i2c/busses/i2c-pmcmsp.c +++ b/drivers/i2c/busses/i2c-pmcmsp.c @@ -564,7 +564,7 @@ static int pmcmsptwi_master_xfer(struct * TODO: We could potentially loop and retry in the case * of MSP_TWI_XFER_TIMEOUT. */ - return -1; + return -EIO; }
return num;
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Peter Rosin peda@axentia.se
[ Upstream commit 35cd67a0caf767aba472452865dcb4471fcce2b1 ]
Returning zero is wrong in this case.
Signed-off-by: Peter Rosin peda@axentia.se Signed-off-by: Wolfram Sang wsa@the-dreams.de Fixes: 174a13aa8669 ("i2c: Add viperboard i2c master driver") Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/i2c/busses/i2c-viperboard.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/i2c/busses/i2c-viperboard.c +++ b/drivers/i2c/busses/i2c-viperboard.c @@ -337,7 +337,7 @@ static int vprbrd_i2c_xfer(struct i2c_ad } mutex_unlock(&vb->lock); } - return 0; + return num; error: mutex_unlock(&vb->lock); return error;
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Sekhar Nori nsekhar@ti.com
[ Upstream commit 73d4337ed9ceddef4b2f0e226634d5f985aa2d1c ]
commit b38434145b34 ("ARM: davinci: irqs: Correct McASP1 TX interrupt definition for DM646x") inadvertently removed priority setting for timer0_12 (bottom half of timer0). This timer is used as clockevent.
When INTPRIn register setting for an interrupt is left at 0, it is mapped to FIQ by the AINTC causing the timer interrupt to not get generated.
Fix it by including an entry for timer0_12 in interrupt priority map array. While at it, move the clockevent comment to the right place.
Fixes: b38434145b34 ("ARM: davinci: irqs: Correct McASP1 TX interrupt definition for DM646x") Signed-off-by: Sekhar Nori nsekhar@ti.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/arm/mach-davinci/dm646x.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
--- a/arch/arm/mach-davinci/dm646x.c +++ b/arch/arm/mach-davinci/dm646x.c @@ -495,7 +495,8 @@ static u8 dm646x_default_priorities[DAVI [IRQ_DM646X_MCASP0TXINT] = 7, [IRQ_DM646X_MCASP0RXINT] = 7, [IRQ_DM646X_RESERVED_3] = 7, - [IRQ_DM646X_MCASP1TXINT] = 7, /* clockevent */ + [IRQ_DM646X_MCASP1TXINT] = 7, + [IRQ_TINT0_TINT12] = 7, /* clockevent */ [IRQ_TINT0_TINT34] = 7, /* clocksource */ [IRQ_TINT1_TINT12] = 7, /* DSP timer */ [IRQ_TINT1_TINT34] = 7, /* system tick */
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Sekhar Nori nsekhar@ti.com
[ Upstream commit 7d46899d57f8b61eb28701d9a4043b71e3392c26 ]
commit a16cb91ad9c4 ("[media] media: vpif: use a configurable i2c_adapter_id for vpif display") removed hardcoded I2C adaptor setting in VPIF driver, but missed updating platform data passed from DM646x board.
Fix it.
Fixes: a16cb91ad9c4 ("[media] media: vpif: use a configurable i2c_adapter_id for vpif display") Signed-off-by: Sekhar Nori nsekhar@ti.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/arm/mach-davinci/board-dm646x-evm.c | 2 ++ 1 file changed, 2 insertions(+)
--- a/arch/arm/mach-davinci/board-dm646x-evm.c +++ b/arch/arm/mach-davinci/board-dm646x-evm.c @@ -534,6 +534,7 @@ static struct vpif_display_config dm646x .set_clock = set_vpif_clock, .subdevinfo = dm646x_vpif_subdev, .subdev_count = ARRAY_SIZE(dm646x_vpif_subdev), + .i2c_adapter_id = 1, .chan_config[0] = { .outputs = dm6467_ch0_outputs, .output_count = ARRAY_SIZE(dm6467_ch0_outputs), @@ -676,6 +677,7 @@ static struct vpif_capture_config dm646x .setup_input_channel_mode = setup_vpif_input_channel_mode, .subdev_info = vpif_capture_sdev_info, .subdev_count = ARRAY_SIZE(vpif_capture_sdev_info), + .i2c_adapter_id = 1, .chan_config[0] = { .inputs = dm6467_ch0_inputs, .input_count = ARRAY_SIZE(dm6467_ch0_inputs),
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Sekhar Nori nsekhar@ti.com
[ Upstream commit bb7298a7e87cf3430eb62be8746e5d7a07ca9d7c ]
VPIF capture driver expects card name to be set since it uses it without checking for NULL. The commit which introduced VPIF display and capture support added card name only for display, not for capture.
Set it in platform data to probe driver successfully.
While at it, also fix the display card name to something more appropriate.
Fixes: 85609c1ccda6 ("DaVinci: DM646x - platform changes for vpif capture and display drivers") Signed-off-by: Sekhar Nori nsekhar@ti.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/arm/mach-davinci/board-dm646x-evm.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
--- a/arch/arm/mach-davinci/board-dm646x-evm.c +++ b/arch/arm/mach-davinci/board-dm646x-evm.c @@ -539,7 +539,7 @@ static struct vpif_display_config dm646x .outputs = dm6467_ch0_outputs, .output_count = ARRAY_SIZE(dm6467_ch0_outputs), }, - .card_name = "DM646x EVM", + .card_name = "DM646x EVM Video Display", };
/** @@ -698,6 +698,7 @@ static struct vpif_capture_config dm646x .fid_pol = 0, }, }, + .card_name = "DM646x EVM Video Capture", };
static void __init evm_init_video(void)
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Geert Uytterhoeven geert@linux-m68k.org
[ Upstream commit 9f825e74d761c13b0cfaa5f65344d64ff970e252 ]
The __DIVIDE() macro checks whether it is called with a 32-bit or 64-bit dividend, to select the appropriate divide-and-round-up routine. As the check uses the ternary operator, the result will always be promoted to a type that can hold both results, i.e. unsigned long long.
When using this result in a division on a 32-bit system, this may lead to link errors like:
ERROR: "__udivdi3" [drivers/mtd/nand/raw/nand.ko] undefined!
Fix this by casting the result of the division to the type of the dividend.
Fixes: 8878b126df769831 ("mtd: nand: add ->exec_op() implementation") Signed-off-by: Geert Uytterhoeven geert@linux-m68k.org Signed-off-by: Boris Brezillon boris.brezillon@bootlin.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- include/linux/mtd/rawnand.h | 16 +++++++++++----- 1 file changed, 11 insertions(+), 5 deletions(-)
--- a/include/linux/mtd/rawnand.h +++ b/include/linux/mtd/rawnand.h @@ -824,12 +824,18 @@ struct nand_op_instr { * tBERS (during an erase) which all of them are u64 values that cannot be * divided by usual kernel macros and must be handled with the special * DIV_ROUND_UP_ULL() macro. + * + * Cast to type of dividend is needed here to guarantee that the result won't + * be an unsigned long long when the dividend is an unsigned long (or smaller), + * which is what the compiler does when it sees ternary operator with 2 + * different return types (picks the largest type to make sure there's no + * loss). */ -#define __DIVIDE(dividend, divisor) ({ \ - sizeof(dividend) == sizeof(u32) ? \ - DIV_ROUND_UP(dividend, divisor) : \ - DIV_ROUND_UP_ULL(dividend, divisor); \ - }) +#define __DIVIDE(dividend, divisor) ({ \ + (__typeof__(dividend))(sizeof(dividend) <= sizeof(unsigned long) ? \ + DIV_ROUND_UP(dividend, divisor) : \ + DIV_ROUND_UP_ULL(dividend, divisor)); \ + }) #define PSEC_TO_NSEC(x) __DIVIDE(x, 1000) #define PSEC_TO_MSEC(x) __DIVIDE(x, 1000000000)
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Stefan Agner stefan@agner.ch
[ Upstream commit 2e5be528ab0182ad4b42b9feea3b80f85f37179b ]
On i.MX6 ULL using PLL3 seems to cause a freeze when setting the parent to IMX6UL_CLK_PLL3_USB_OTG. This only seems to appear since commit 6f9575e55632 ("clk: imx: Add CLK_IS_CRITICAL flag for busy divider and busy mux"), probably because the clock is now forced to be on.
Fixes: 6f9575e55632("clk: imx: Add CLK_IS_CRITICAL flag for busy divider and busy mux") Signed-off-by: Stefan Agner stefan@agner.ch Signed-off-by: Stephen Boyd sboyd@kernel.org Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/clk/imx/clk-imx6ul.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/clk/imx/clk-imx6ul.c +++ b/drivers/clk/imx/clk-imx6ul.c @@ -461,7 +461,7 @@ static void __init imx6ul_clocks_init(st clk_set_rate(clks[IMX6UL_CLK_AHB], 99000000);
/* Change periph_pre clock to pll2_bus to adjust AXI rate to 264MHz */ - clk_set_parent(clks[IMX6UL_CLK_PERIPH_CLK2_SEL], clks[IMX6UL_CLK_PLL3_USB_OTG]); + clk_set_parent(clks[IMX6UL_CLK_PERIPH_CLK2_SEL], clks[IMX6UL_CLK_OSC]); clk_set_parent(clks[IMX6UL_CLK_PERIPH], clks[IMX6UL_CLK_PERIPH_CLK2]); clk_set_parent(clks[IMX6UL_CLK_PERIPH_PRE], clks[IMX6UL_CLK_PLL2_BUS]); clk_set_parent(clks[IMX6UL_CLK_PERIPH], clks[IMX6UL_CLK_PERIPH_PRE]);
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Waiman Long longman@redhat.com
[ Upstream commit d7d760efad70c7a030725499bf9f342f04af24dd ]
There are use cases where a rwsem can be acquired by one task, but released by another task. In thess cases, optimistic spinning may need to be disabled. One example will be the filesystem freeze/thaw code where the task that freezes the filesystem will acquire a write lock on a rwsem and then un-owns it before returning to userspace. Later on, another task will come along, acquire the ownership, thaw the filesystem and release the rwsem.
Bit 0 of the owner field was used to designate that it is a reader owned rwsem. It is now repurposed to mean that the owner of the rwsem is not known. If only bit 0 is set, the rwsem is reader owned. If bit 0 and other bits are set, it is writer owned with an unknown owner. One such value for the latter case is (-1L). So we can set owner to 1 for reader-owned, -1 for writer-owned. The owner is unknown in both cases.
To handle transfer of rwsem ownership, the higher level code should set the owner field to -1 to indicate a write-locked rwsem with unknown owner. Optimistic spinning will be disabled in this case.
Once the higher level code figures who the new owner is, it can then set the owner field accordingly.
Tested-by: Amir Goldstein amir73il@gmail.com Signed-off-by: Waiman Long longman@redhat.com Acked-by: Peter Zijlstra peterz@infradead.org Cc: Andrew Morton akpm@linux-foundation.org Cc: Davidlohr Bueso dave@stgolabs.net Cc: Jan Kara jack@suse.cz Cc: Linus Torvalds torvalds@linux-foundation.org Cc: Matthew Wilcox willy@infradead.org Cc: Oleg Nesterov oleg@redhat.com Cc: Paul E. McKenney paulmck@linux.vnet.ibm.com Cc: Theodore Y. Ts'o tytso@mit.edu Cc: Thomas Gleixner tglx@linutronix.de Cc: Will Deacon will.deacon@arm.com Cc: linux-fsdevel@vger.kernel.org Link: http://lkml.kernel.org/r/1526420991-21213-2-git-send-email-longman@redhat.co... Signed-off-by: Ingo Molnar mingo@kernel.org Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- kernel/locking/rwsem-xadd.c | 17 +++++++---------- kernel/locking/rwsem.c | 2 -- kernel/locking/rwsem.h | 30 +++++++++++++++++++++--------- 3 files changed, 28 insertions(+), 21 deletions(-)
--- a/kernel/locking/rwsem-xadd.c +++ b/kernel/locking/rwsem-xadd.c @@ -357,11 +357,8 @@ static inline bool rwsem_can_spin_on_own
rcu_read_lock(); owner = READ_ONCE(sem->owner); - if (!rwsem_owner_is_writer(owner)) { - /* - * Don't spin if the rwsem is readers owned. - */ - ret = !rwsem_owner_is_reader(owner); + if (!owner || !is_rwsem_owner_spinnable(owner)) { + ret = !owner; /* !owner is spinnable */ goto done; }
@@ -382,11 +379,11 @@ static noinline bool rwsem_spin_on_owner { struct task_struct *owner = READ_ONCE(sem->owner);
- if (!rwsem_owner_is_writer(owner)) - goto out; + if (!is_rwsem_owner_spinnable(owner)) + return false;
rcu_read_lock(); - while (sem->owner == owner) { + while (owner && (READ_ONCE(sem->owner) == owner)) { /* * Ensure we emit the owner->on_cpu, dereference _after_ * checking sem->owner still matches owner, if that fails, @@ -408,12 +405,12 @@ static noinline bool rwsem_spin_on_owner cpu_relax(); } rcu_read_unlock(); -out: + /* * If there is a new owner or the owner is not set, we continue * spinning. */ - return !rwsem_owner_is_reader(READ_ONCE(sem->owner)); + return is_rwsem_owner_spinnable(READ_ONCE(sem->owner)); }
static bool rwsem_optimistic_spin(struct rw_semaphore *sem) --- a/kernel/locking/rwsem.c +++ b/kernel/locking/rwsem.c @@ -217,5 +217,3 @@ void up_read_non_owner(struct rw_semapho EXPORT_SYMBOL(up_read_non_owner);
#endif - - --- a/kernel/locking/rwsem.h +++ b/kernel/locking/rwsem.h @@ -1,20 +1,24 @@ /* SPDX-License-Identifier: GPL-2.0 */ /* * The owner field of the rw_semaphore structure will be set to - * RWSEM_READ_OWNED when a reader grabs the lock. A writer will clear + * RWSEM_READER_OWNED when a reader grabs the lock. A writer will clear * the owner field when it unlocks. A reader, on the other hand, will * not touch the owner field when it unlocks. * - * In essence, the owner field now has the following 3 states: + * In essence, the owner field now has the following 4 states: * 1) 0 * - lock is free or the owner hasn't set the field yet * 2) RWSEM_READER_OWNED * - lock is currently or previously owned by readers (lock is free * or not set by owner yet) - * 3) Other non-zero value - * - a writer owns the lock + * 3) RWSEM_ANONYMOUSLY_OWNED bit set with some other bits set as well + * - lock is owned by an anonymous writer, so spinning on the lock + * owner should be disabled. + * 4) Other non-zero value + * - a writer owns the lock and other writers can spin on the lock owner. */ -#define RWSEM_READER_OWNED ((struct task_struct *)1UL) +#define RWSEM_ANONYMOUSLY_OWNED (1UL << 0) +#define RWSEM_READER_OWNED ((struct task_struct *)RWSEM_ANONYMOUSLY_OWNED)
#ifdef CONFIG_RWSEM_SPIN_ON_OWNER /* @@ -45,14 +49,22 @@ static inline void rwsem_set_reader_owne WRITE_ONCE(sem->owner, RWSEM_READER_OWNED); }
-static inline bool rwsem_owner_is_writer(struct task_struct *owner) +/* + * Return true if the a rwsem waiter can spin on the rwsem's owner + * and steal the lock, i.e. the lock is not anonymously owned. + * N.B. !owner is considered spinnable. + */ +static inline bool is_rwsem_owner_spinnable(struct task_struct *owner) { - return owner && owner != RWSEM_READER_OWNED; + return !((unsigned long)owner & RWSEM_ANONYMOUSLY_OWNED); }
-static inline bool rwsem_owner_is_reader(struct task_struct *owner) +/* + * Return true if rwsem is owned by an anonymous writer or readers. + */ +static inline bool rwsem_has_anonymous_owner(struct task_struct *owner) { - return owner == RWSEM_READER_OWNED; + return (unsigned long)owner & RWSEM_ANONYMOUSLY_OWNED; } #else static inline void rwsem_set_owner(struct rw_semaphore *sem)
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Waiman Long longman@redhat.com
[ Upstream commit 5a817641f68a6399a5fac8b7d2da67a73698ffed ]
The filesystem freezing code needs to transfer ownership of a rwsem embedded in a percpu-rwsem from the task that does the freezing to another one that does the thawing by calling percpu_rwsem_release() after freezing and percpu_rwsem_acquire() before thawing.
However, the new rwsem debug code runs afoul with this scheme by warning that the task that releases the rwsem isn't the one that acquires it, as reported by Amir Goldstein:
DEBUG_LOCKS_WARN_ON(sem->owner != get_current()) WARNING: CPU: 1 PID: 1401 at /home/amir/build/src/linux/kernel/locking/rwsem.c:133 up_write+0x59/0x79
Call Trace: percpu_up_write+0x1f/0x28 thaw_super_locked+0xdf/0x120 do_vfs_ioctl+0x270/0x5f1 ksys_ioctl+0x52/0x71 __x64_sys_ioctl+0x16/0x19 do_syscall_64+0x5d/0x167 entry_SYSCALL_64_after_hwframe+0x49/0xbe
To work properly with the rwsem debug code, we need to annotate that the rwsem ownership is unknown during the tranfer period until a brave soul comes forward to acquire the ownership. During that period, optimistic spinning will be disabled.
Reported-by: Amir Goldstein amir73il@gmail.com Tested-by: Amir Goldstein amir73il@gmail.com Signed-off-by: Waiman Long longman@redhat.com Acked-by: Peter Zijlstra peterz@infradead.org Cc: Andrew Morton akpm@linux-foundation.org Cc: Davidlohr Bueso dave@stgolabs.net Cc: Jan Kara jack@suse.cz Cc: Linus Torvalds torvalds@linux-foundation.org Cc: Matthew Wilcox willy@infradead.org Cc: Oleg Nesterov oleg@redhat.com Cc: Paul E. McKenney paulmck@linux.vnet.ibm.com Cc: Theodore Y. Ts'o tytso@mit.edu Cc: Thomas Gleixner tglx@linutronix.de Cc: Will Deacon will.deacon@arm.com Cc: linux-fsdevel@vger.kernel.org Link: http://lkml.kernel.org/r/1526420991-21213-3-git-send-email-longman@redhat.co... Signed-off-by: Ingo Molnar mingo@kernel.org Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- include/linux/percpu-rwsem.h | 6 +++++- include/linux/rwsem.h | 6 ++++++ kernel/locking/rwsem-xadd.c | 2 ++ 3 files changed, 13 insertions(+), 1 deletion(-)
--- a/include/linux/percpu-rwsem.h +++ b/include/linux/percpu-rwsem.h @@ -133,7 +133,7 @@ static inline void percpu_rwsem_release( lock_release(&sem->rw_sem.dep_map, 1, ip); #ifdef CONFIG_RWSEM_SPIN_ON_OWNER if (!read) - sem->rw_sem.owner = NULL; + sem->rw_sem.owner = RWSEM_OWNER_UNKNOWN; #endif }
@@ -141,6 +141,10 @@ static inline void percpu_rwsem_acquire( bool read, unsigned long ip) { lock_acquire(&sem->rw_sem.dep_map, 0, 1, read, 1, NULL, ip); +#ifdef CONFIG_RWSEM_SPIN_ON_OWNER + if (!read) + sem->rw_sem.owner = current; +#endif }
#endif --- a/include/linux/rwsem.h +++ b/include/linux/rwsem.h @@ -44,6 +44,12 @@ struct rw_semaphore { #endif };
+/* + * Setting bit 0 of the owner field with other non-zero bits will indicate + * that the rwsem is writer-owned with an unknown owner. + */ +#define RWSEM_OWNER_UNKNOWN ((struct task_struct *)-1L) + extern struct rw_semaphore *rwsem_down_read_failed(struct rw_semaphore *sem); extern struct rw_semaphore *rwsem_down_read_failed_killable(struct rw_semaphore *sem); extern struct rw_semaphore *rwsem_down_write_failed(struct rw_semaphore *sem); --- a/kernel/locking/rwsem-xadd.c +++ b/kernel/locking/rwsem-xadd.c @@ -352,6 +352,8 @@ static inline bool rwsem_can_spin_on_own struct task_struct *owner; bool ret = true;
+ BUILD_BUG_ON(!rwsem_has_anonymous_owner(RWSEM_OWNER_UNKNOWN)); + if (need_resched()) return false;
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Dan Carpenter dan.carpenter@oracle.com
[ Upstream commit 2b6207291b7b277a5df9d1aab44b56815a292dba ]
There is a comment here which says that DIV_ROUND_UP() and that's where the problem comes from. Say you pick:
args->bpp = UINT_MAX - 7; args->width = 4; args->height = 1;
The integer overflow in DIV_ROUND_UP() means "cpp" is UINT_MAX / 8 and because of how we picked args->width that means cpp < UINT_MAX / 4.
I've fixed it by preventing the integer overflow in DIV_ROUND_UP(). I removed the check for !cpp because it's not possible after this change. I also changed all the 0xffffffffU references to U32_MAX.
Signed-off-by: Dan Carpenter dan.carpenter@oracle.com Signed-off-by: Daniel Vetter daniel.vetter@ffwll.ch Link: https://patchwork.freedesktop.org/patch/msgid/20180516140026.GA19340@mwanda Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/gpu/drm/drm_dumb_buffers.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-)
--- a/drivers/gpu/drm/drm_dumb_buffers.c +++ b/drivers/gpu/drm/drm_dumb_buffers.c @@ -65,12 +65,13 @@ int drm_mode_create_dumb_ioctl(struct dr return -EINVAL;
/* overflow checks for 32bit size calculations */ - /* NOTE: DIV_ROUND_UP() can overflow */ + if (args->bpp > U32_MAX - 8) + return -EINVAL; cpp = DIV_ROUND_UP(args->bpp, 8); - if (!cpp || cpp > 0xffffffffU / args->width) + if (cpp > U32_MAX / args->width) return -EINVAL; stride = cpp * args->width; - if (args->height > 0xffffffffU / stride) + if (args->height > U32_MAX / stride) return -EINVAL;
/* test for wrap-around */
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Helge Deller deller@gmx.de
[ Upstream commit 01f56832cfb6fcc204e7203f46841b6185ebd574 ]
No other architecture has setup_profiling_timer() in the init section, thus on parisc we face this section mismatch warning: Reference from the function devm_device_add_group() to the function .init.text:setup_profiling_timer()
Signed-off-by: Helge Deller deller@gmx.de Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/parisc/kernel/smp.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-)
--- a/arch/parisc/kernel/smp.c +++ b/arch/parisc/kernel/smp.c @@ -423,8 +423,7 @@ int __cpu_up(unsigned int cpu, struct ta }
#ifdef CONFIG_PROC_FS -int __init -setup_profiling_timer(unsigned int multiplier) +int setup_profiling_timer(unsigned int multiplier) { return -EINVAL; }
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Darren Hart dvhart@infradead.org
[ Upstream commit 54940fa60ad3728c592f62dadb558165495a6938 ]
If DELL_WMI "select"s DELL_SMBIOS, the DELL_SMBIOS dependencies are ignored and it is still possible to end up with unmet direct dependencies.
Change the select to a depends on.
Tested-by: Randy Dunlap rdunlap@infradead.org Signed-off-by: Darren Hart (VMware) dvhart@infradead.org Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/platform/x86/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/platform/x86/Kconfig +++ b/drivers/platform/x86/Kconfig @@ -168,8 +168,8 @@ config DELL_WMI depends on DMI depends on INPUT depends on ACPI_VIDEO || ACPI_VIDEO = n + depends on DELL_SMBIOS select DELL_WMI_DESCRIPTOR - select DELL_SMBIOS select INPUT_SPARSEKMAP ---help--- Say Y here if you want to support WMI-based hotkeys on Dell laptops.
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Mark Rutland mark.rutland@arm.com
[ Upstream commit 4f74d72aa7067e75af92fbab077e6d7d0210be66 ]
When CONFIG_RANDOMIZE_TEXT_OFFSET=y, TEXT_OFFSET is an arbitrary multiple of PAGE_SIZE in the interval [0, 2MB).
The EFI stub does not account for the potential misalignment of TEXT_OFFSET relative to EFI_KIMG_ALIGN, and produces a randomized physical offset which is always a round multiple of EFI_KIMG_ALIGN. This may result in statically allocated objects whose alignment exceeds PAGE_SIZE to appear misaligned in memory. This has been observed to result in spurious stack overflow reports and failure to make use of the IRQ stacks, and theoretically could result in a number of other issues.
We can OR in the low bits of TEXT_OFFSET to ensure that we have the necessary offset (and hence preserve the misalignment of TEXT_OFFSET relative to EFI_KIMG_ALIGN), so let's do that.
Reported-by: Kim Phillips kim.phillips@arm.com Tested-by: Kim Phillips kim.phillips@arm.com [ardb: clarify comment and commit log, drop unneeded parens] Signed-off-by: Mark Rutland mark.rutland@arm.com Signed-off-by: Ard Biesheuvel ard.biesheuvel@linaro.org Cc: Linus Torvalds torvalds@linux-foundation.org Cc: Peter Zijlstra peterz@infradead.org Cc: Thomas Gleixner tglx@linutronix.de Cc: linux-efi@vger.kernel.org Fixes: 6f26b3671184c36d ("arm64: kaslr: increase randomization granularity") Link: http://lkml.kernel.org/r/20180518140841.9731-2-ard.biesheuvel@linaro.org Signed-off-by: Ingo Molnar mingo@kernel.org Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/firmware/efi/libstub/arm64-stub.c | 10 ++++++++++ 1 file changed, 10 insertions(+)
--- a/drivers/firmware/efi/libstub/arm64-stub.c +++ b/drivers/firmware/efi/libstub/arm64-stub.c @@ -98,6 +98,16 @@ efi_status_t handle_kernel_image(efi_sys (phys_seed >> 32) & mask : TEXT_OFFSET;
/* + * With CONFIG_RANDOMIZE_TEXT_OFFSET=y, TEXT_OFFSET may not + * be a multiple of EFI_KIMG_ALIGN, and we must ensure that + * we preserve the misalignment of 'offset' relative to + * EFI_KIMG_ALIGN so that statically allocated objects whose + * alignment exceeds PAGE_SIZE appear correctly aligned in + * memory. + */ + offset |= TEXT_OFFSET % EFI_KIMG_ALIGN; + + /* * If KASLR is enabled, and we have some randomness available, * locate the kernel at a randomized offset in physical memory. */
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Russell King rmk+kernel@armlinux.org.uk
[ Upstream commit 2d7b3c64431245c95b05a441669c074da10db943 ]
When a panic() occurs, the kexec code uses smp_send_stop() to stop the other CPUs, but this results in the CPU register state not being saved, and gdb is unable to inspect the state of other CPUs.
Commit 0ee59413c967 ("x86/panic: replace smp_send_stop() with kdump friendly version in panic path") addressed the issue on x86, but ignored other architectures. Address the issue on ARM by splitting out the crash stop implementation to crash_smp_send_stop() and adding the necessary protection.
Signed-off-by: Russell King rmk+kernel@armlinux.org.uk Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/arm/kernel/machine_kexec.c | 34 ++++++++++++++++++++++------------ 1 file changed, 22 insertions(+), 12 deletions(-)
--- a/arch/arm/kernel/machine_kexec.c +++ b/arch/arm/kernel/machine_kexec.c @@ -95,6 +95,27 @@ void machine_crash_nonpanic_core(void *u cpu_relax(); }
+void crash_smp_send_stop(void) +{ + static int cpus_stopped; + unsigned long msecs; + + if (cpus_stopped) + return; + + atomic_set(&waiting_for_crash_ipi, num_online_cpus() - 1); + smp_call_function(machine_crash_nonpanic_core, NULL, false); + msecs = 1000; /* Wait at most a second for the other cpus to stop */ + while ((atomic_read(&waiting_for_crash_ipi) > 0) && msecs) { + mdelay(1); + msecs--; + } + if (atomic_read(&waiting_for_crash_ipi) > 0) + pr_warn("Non-crashing CPUs did not react to IPI\n"); + + cpus_stopped = 1; +} + static void machine_kexec_mask_interrupts(void) { unsigned int i; @@ -120,19 +141,8 @@ static void machine_kexec_mask_interrupt
void machine_crash_shutdown(struct pt_regs *regs) { - unsigned long msecs; - local_irq_disable(); - - atomic_set(&waiting_for_crash_ipi, num_online_cpus() - 1); - smp_call_function(machine_crash_nonpanic_core, NULL, false); - msecs = 1000; /* Wait at most a second for the other cpus to stop */ - while ((atomic_read(&waiting_for_crash_ipi) > 0) && msecs) { - mdelay(1); - msecs--; - } - if (atomic_read(&waiting_for_crash_ipi) > 0) - pr_warn("Non-crashing CPUs did not react to IPI\n"); + crash_smp_send_stop();
crash_save_cpu(regs, smp_processor_id()); machine_kexec_mask_interrupts();
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Russell King rmk+kernel@armlinux.org.uk
[ Upstream commit 6cea14f55474ec71f1098228e0ae5dd2a8f22c0a ]
You can build a kernel in a cross compiling environment that doesn't have perl in the $PATH. Commit 429f7a062e3b broke that for 32 bit ARM. Fix it.
As reported by Stephen Rothwell, it appears that the symbols can be either part of the BSS section or absolute symbols depending on the binutils version. When they're an absolute symbol, the $(( )) operator errors out and the build fails. Fix this as well.
Fixes: 429f7a062e3b ("ARM: decompressor: fix BSS size calculation") Reported-by: Rob Landley rob@landley.net Reported-by: Stephen Rothwell sfr@canb.auug.org.au Acked-by: Rob Landley rob@landley.net Signed-off-by: Russell King rmk+kernel@armlinux.org.uk Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/arm/boot/compressed/Makefile | 8 +++----- 1 file changed, 3 insertions(+), 5 deletions(-)
--- a/arch/arm/boot/compressed/Makefile +++ b/arch/arm/boot/compressed/Makefile @@ -117,11 +117,9 @@ ccflags-y := -fpic -mno-single-pic-base asflags-y := -DZIMAGE
# Supply kernel BSS size to the decompressor via a linker symbol. -KBSS_SZ = $(shell $(CROSS_COMPILE)nm $(obj)/../../../../vmlinux | \ - perl -e 'while (<>) { \ - $$bss_start=hex($$1) if /^([[:xdigit:]]+) B __bss_start$$/; \ - $$bss_end=hex($$1) if /^([[:xdigit:]]+) B __bss_stop$$/; \ - }; printf "%d\n", $$bss_end - $$bss_start;') +KBSS_SZ = $(shell echo $$(($$($(CROSS_COMPILE)nm $(obj)/../../../../vmlinux | \ + sed -n -e 's/^([^ ]*) [AB] __bss_start$$/-0x\1/p' \ + -e 's/^([^ ]*) [AB] __bss_stop$$/+0x\1/p') )) ) LDFLAGS_vmlinux = --defsym _kernel_bss_size=$(KBSS_SZ) # Supply ZRELADDR to the decompressor via a linker symbol. ifneq ($(CONFIG_AUTO_ZRELADDR),y)
4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Russell King rmk+kernel@armlinux.org.uk
[ Upstream commit 92d44a42af81e850a038c38278ff4f434b2871df ]
Commit 7771c6645700 ("signal/arm: Document conflicts with SI_USER and SIGFPE") broke the siginfo structure for userspace triggered signals, causing the strace testsuite to regress. Fix this by eliminating the FPE_FIXME definition (which is at the root of the breakage) and use FPE_FLTINV instead for the case where the hardware appears to be reporting nonsense.
Fixes: 7771c6645700 ("signal/arm: Document conflicts with SI_USER and SIGFPE") Suggested-by: Linus Torvalds torvalds@linux-foundation.org Signed-off-by: Russell King rmk+kernel@armlinux.org.uk Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/arm/include/uapi/asm/siginfo.h | 13 ------------- arch/arm/vfp/vfpmodule.c | 2 +- 2 files changed, 1 insertion(+), 14 deletions(-) delete mode 100644 arch/arm/include/uapi/asm/siginfo.h
--- a/arch/arm/include/uapi/asm/siginfo.h +++ /dev/null @@ -1,13 +0,0 @@ -#ifndef __ASM_SIGINFO_H -#define __ASM_SIGINFO_H - -#include <asm-generic/siginfo.h> - -/* - * SIGFPE si_codes - */ -#ifdef __KERNEL__ -#define FPE_FIXME 0 /* Broken dup of SI_USER */ -#endif /* __KERNEL__ */ - -#endif --- a/arch/arm/vfp/vfpmodule.c +++ b/arch/arm/vfp/vfpmodule.c @@ -257,7 +257,7 @@ static void vfp_raise_exceptions(u32 exc
if (exceptions == VFP_EXCEPTION_ERROR) { vfp_panic("unhandled bounce", inst); - vfp_raise_sigfpe(FPE_FIXME, regs); + vfp_raise_sigfpe(FPE_FLTINV, regs); return; }
On 06/18/18 10:09, Greg Kroah-Hartman wrote:
This is the start of the stable review cycle for the 4.16.17 release. There are 279 patches in this series, all will be posted as a response to this one. If anyone has any issues with these being applied, please let me know.
This patch:
Igor Russkikh igor.russkikh@aquantia.com net: aquantia: Limit number of vectors to actually allocated irqs
should also get an additional followup with mainline 58d813afbe89658 ("net: aquantia: fix unsigned numvecs comparison with less than zero"), otherwise error handling might be subtly broken.
cheers, Holger
On Mon, Jun 18, 2018 at 11:37:02AM +0200, Holger Hoffstätte wrote:
On 06/18/18 10:09, Greg Kroah-Hartman wrote:
This is the start of the stable review cycle for the 4.16.17 release. There are 279 patches in this series, all will be posted as a response to this one. If anyone has any issues with these being applied, please let me know.
This patch:
Igor Russkikh igor.russkikh@aquantia.com net: aquantia: Limit number of vectors to actually allocated irqs
should also get an additional followup with mainline 58d813afbe89658 ("net: aquantia: fix unsigned numvecs comparison with less than zero"), otherwise error handling might be subtly broken.
Thanks, now queued up for 4.16.y and 4.17.y
greg k-h
On Mon, Jun 18, 2018 at 10:09:45AM +0200, Greg Kroah-Hartman wrote:
This is the start of the stable review cycle for the 4.16.17 release. There are 279 patches in this series, all will be posted as a response to this one. If anyone has any issues with these being applied, please let me know.
Responses should be made by Wed Jun 20 08:05:28 UTC 2018. Anything received after that time might be too late.
For v4.16.16-279-g957de89:
Build results: total: 145 pass: 145 fail: 0 Qemu test results: total: 152 pass: 152 fail: 0
Details are available at http://kerneltests.org/builders/.
Guenter
On Mon, Jun 18, 2018 at 11:30:49AM -0700, Guenter Roeck wrote:
On Mon, Jun 18, 2018 at 10:09:45AM +0200, Greg Kroah-Hartman wrote:
This is the start of the stable review cycle for the 4.16.17 release. There are 279 patches in this series, all will be posted as a response to this one. If anyone has any issues with these being applied, please let me know.
Responses should be made by Wed Jun 20 08:05:28 UTC 2018. Anything received after that time might be too late.
For v4.16.16-279-g957de89:
Build results: total: 145 pass: 145 fail: 0 Qemu test results: total: 152 pass: 152 fail: 0
Details are available at http://kerneltests.org/builders/.
Great, thanks for testing and letting me know.
greg k-h
On 18 June 2018 at 13:39, Greg Kroah-Hartman gregkh@linuxfoundation.org wrote:
This is the start of the stable review cycle for the 4.16.17 release. There are 279 patches in this series, all will be posted as a response to this one. If anyone has any issues with these being applied, please let me know.
Responses should be made by Wed Jun 20 08:05:28 UTC 2018. Anything received after that time might be too late.
The whole patch series can be found in one patch at: https://www.kernel.org/pub/linux/kernel/v4.x/stable-review/patch-4.16.17-rc1... or in the git tree and branch at: git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-4.16.y and the diffstat can be found below.
thanks,
greg k-h
Results from Linaro’s test farm. No regressions on arm64, arm and x86_64.
Summary ------------------------------------------------------------------------
kernel: 4.16.17-rc1 git repo: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git git branch: linux-4.16.y git commit: 957de898f0f3aac469028d303d1384bc0a975e93 git describe: v4.16.16-279-g957de898f0f3 Test details: https://qa-reports.linaro.org/lkft/linux-stable-rc-4.16-oe/build/v4.16.16-27...
No regressions (compared to build v4.16.16-280-g893364ab48d9)
Ran 11514 total tests in the following environments and test suites.
Environments -------------- - dragonboard-410c - arm64 - hi6220-hikey - arm64 - juno-r2 - arm64 - qemu_arm - qemu_arm64 - qemu_x86_64 - x15 - arm - x86_64
Test Suites ----------- * boot * kselftest * libhugetlbfs * ltp-cap_bounds-tests * ltp-containers-tests * ltp-cve-tests * ltp-fcntl-locktests-tests * ltp-fs-tests * ltp-fs_bind-tests * ltp-fs_perms_simple-tests * ltp-fsx-tests * ltp-hugetlb-tests * ltp-io-tests * ltp-ipc-tests * ltp-math-tests * ltp-nptl-tests * ltp-pty-tests * ltp-sched-tests * ltp-securebits-tests * ltp-syscalls-tests * ltp-timers-tests * ltp-filecaps-tests * kselftest-vsyscall-mode-native * kselftest-vsyscall-mode-none
On Tue, Jun 19, 2018 at 01:14:00PM +0530, Naresh Kamboju wrote:
On 18 June 2018 at 13:39, Greg Kroah-Hartman gregkh@linuxfoundation.org wrote:
This is the start of the stable review cycle for the 4.16.17 release. There are 279 patches in this series, all will be posted as a response to this one. If anyone has any issues with these being applied, please let me know.
Responses should be made by Wed Jun 20 08:05:28 UTC 2018. Anything received after that time might be too late.
The whole patch series can be found in one patch at: https://www.kernel.org/pub/linux/kernel/v4.x/stable-review/patch-4.16.17-rc1... or in the git tree and branch at: git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-4.16.y and the diffstat can be found below.
thanks,
greg k-h
Results from Linaro’s test farm. No regressions on arm64, arm and x86_64.
Thanks for testing both of these and letting me know.
greg k-h
linux-stable-mirror@lists.linaro.org