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Re: Patch "livepatch: Initialize shadow variables safely by a custom callback" has been added to the 4.16-stable tree

by Miroslav Benes

On Sun, 17 Jun 2018, gregkh(a)linuxfoundation.org wrote: > > This is a note to let you know that I've just added the patch titled > > livepatch: Initialize shadow variables safely by a custom callback > > to the 4.16-stable tree which can be found at: > http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=sum… > > The filename of the patch is: > livepatch-initialize-shadow-variables-safely-by-a-custom-callback.patch > and it can be found in the queue-4.16 subdirectory. > > If you, or anyone else, feels it should not be added to the stable tree, > please let <stable(a)vger.kernel.org> know about it. Hi, I think the patch really should not be added to the stable tree. It is not a bug fix. It is a new feature. The original API was more limited and this patch extends it. The same applies to patch "livepatch: Allow to call a custom callback when freeing shadow variables". Regards, Miroslav

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[PATCH 4.14 000/189] 4.14.51-stable review

by Greg Kroah-Hartman

This is the start of the stable review cycle for the 4.14.51 release. There are 189 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 08:11:38 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-4.14.51-rc… or in the git tree and branch at: git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-4.14.y and the diffstat can be found below. thanks, greg k-h ------------- Pseudo-Shortlog of commits: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Linux 4.14.51-rc1 Eric Dumazet <edumazet(a)google.com> tcp: do not overshoot window_clamp in tcp_rcv_space_adjust() Liu Bo <bo.li.liu(a)oracle.com> Btrfs: make raid6 rebuild retry more Liu Bo <bo.li.liu(a)oracle.com> Btrfs: fix scrub to repair raid6 corruption Sasha Levin <Alexander.Levin(a)microsoft.com> Revert "Btrfs: fix scrub to repair raid6 corruption" Russell King <rmk+kernel(a)armlinux.org.uk> ARM: kexec: fix kdump register saving on panic() Łukasz Stelmach <l.stelmach(a)samsung.com> ARM: 8758/1: decompressor: restore r1 and r2 just before jumping to the kernel Łukasz Stelmach <l.stelmach(a)samsung.com> ARM: 8753/1: decompressor: add a missing parameter to the addruart macro Mark Rutland <mark.rutland(a)arm.com> efi/libstub/arm64: Handle randomized TEXT_OFFSET Helge Deller <deller(a)gmx.de> parisc: Move setup_profiling_timer() out of init section Mathieu Malaterre <malat(a)debian.org> sched/deadline: Make the grub_reclaim() function static Mathieu Malaterre <malat(a)debian.org> sched/debug: Move the print_rt_rq() and print_dl_rq() declarations to kernel/sched/sched.h Dan Carpenter <dan.carpenter(a)oracle.com> drm/dumb-buffers: Integer overflow in drm_mode_create_ioctl() Waiman Long <longman(a)redhat.com> locking/percpu-rwsem: Annotate rwsem ownership transfer by setting RWSEM_OWNER_UNKNOWN Waiman Long <longman(a)redhat.com> locking/rwsem: Add a new RWSEM_ANONYMOUSLY_OWNED flag Stefan Agner <stefan(a)agner.ch> clk: imx6ull: use OSC clock during AXI rate change Sekhar Nori <nsekhar(a)ti.com> ARM: davinci: board-dm646x-evm: set VPIF capture card name Sekhar Nori <nsekhar(a)ti.com> ARM: davinci: board-dm646x-evm: pass correct I2C adapter id for VPIF Sekhar Nori <nsekhar(a)ti.com> ARM: davinci: dm646x: fix timer interrupt generation Peter Rosin <peda(a)axentia.se> i2c: viperboard: return message count on master_xfer success Peter Rosin <peda(a)axentia.se> i2c: pmcmsp: fix error return from master_xfer Peter Rosin <peda(a)axentia.se> i2c: pmcmsp: return message count on master_xfer success Russell King <rmk+kernel(a)armlinux.org.uk> ARM: keystone: fix platform_domain_notifier array overrun Daniel Glöckner <dg(a)emlix.com> usb: musb: fix remote wakeup racing with suspend David Howells <dhowells(a)redhat.com> afs: Fix the non-encryption of calls Ben Hutchings <ben(a)decadent.org.uk> mtd: Fix comparison in map_word_andequal() Dave Hansen <dave.hansen(a)linux.intel.com> x86/pkeys/selftests: Add a test for pkey 0 Dave Hansen <dave.hansen(a)linux.intel.com> x86/pkeys/selftests: Save off 'prot' for allocations Dave Hansen <dave.hansen(a)linux.intel.com> x86/pkeys/selftests: Fix pointer math Dave Hansen <dave.hansen(a)linux.intel.com> x86/pkeys/selftests: Fix pkey exhaustion test off-by-one Dave Hansen <dave.hansen(a)linux.intel.com> x86/pkeys/selftests: Add PROT_EXEC test Dave Hansen <dave.hansen(a)linux.intel.com> x86/pkeys/selftests: Factor out "instruction page" Dave Hansen <dave.hansen(a)linux.intel.com> x86/pkeys/selftests: Allow faults on unknown keys Dave Hansen <dave.hansen(a)linux.intel.com> x86/pkeys/selftests: Remove dead debugging code, fix dprint_in_signal Dave Hansen <dave.hansen(a)linux.intel.com> x86/pkeys/selftests: Stop using assert() Dave Hansen <dave.hansen(a)linux.intel.com> x86/pkeys/selftests: Give better unexpected fault error messages Andy Lutomirski <luto(a)kernel.org> x86/selftests: Add mov_to_ss test Ingo Molnar <mingo(a)kernel.org> x86/mpx/selftests: Adjust the self-test to fresh distros that export the MPX ABI Ingo Molnar <mingo(a)kernel.org> x86/pkeys/selftests: Adjust the self-test to fresh distros that export the pkeys ABI Ingo Molnar <mingo(a)kernel.org> objtool, kprobes/x86: Sync the latest <asm/insn.h> header with tools/objtool/arch/x86/include/asm/insn.h Masami Hiramatsu <mhiramat(a)kernel.org> uprobes/x86: Prohibit probing on MOV SS instruction Masami Hiramatsu <mhiramat(a)kernel.org> kprobes/x86: Prohibit probing on exception masking instructions Ashish Samant <ashish.samant(a)oracle.com> ocfs2: take inode cluster lock before moving reflinked inode from orphan dir Laura Abbott <labbott(a)redhat.com> proc/kcore: don't bounds check against address 0 Jeffrey Hugo <jhugo(a)codeaurora.org> init: fix false positives in W+X checking Roman Mashak <mrv(a)mojatatu.com> net sched actions: fix invalid pointer dereferencing if skbedit flags missing Emil Tantilov <emil.s.tantilov(a)intel.com> ixgbe: return error on unsupported SFP module when resetting Marian Rotariu <mrotariu(a)bitdefender.com> x86: Delay skip of emulated hypercall instruction Wanpeng Li <wanpengli(a)tencent.com> KVM: Extend MAX_IRQ_ROUTES to 4096 for all archs David Howells <dhowells(a)redhat.com> rxrpc: Fix the min security level for kernel calls David Howells <dhowells(a)redhat.com> rxrpc: Fix error reception on AF_INET6 sockets Michal Kalderon <Michal.Kalderon(a)cavium.com> qede: Fix gfp flags sent to rdma event node allocation Michal Kalderon <Michal.Kalderon(a)cavium.com> qed: Fix l2 initializations over iWARP personality Ying Xue <ying.xue(a)windriver.com> tipc: eliminate KMSAN uninit-value in strcmp complaint Mathieu Malaterre <malat(a)debian.org> agp: uninorth: make two functions static Paulo Alcantara <palcantara(a)suse.de> cifs: smb2ops: Fix listxattr() when there are no EAs David Gilhooley <dgilhooley(a)nvidia.com> arm64: Add MIDR encoding for NVIDIA CPUs Jakob Unterwurzacher <jakob.unterwurzacher(a)theobroma-systems.com> can: dev: increase bus-off message severity Igor Russkikh <igor.russkikh(a)aquantia.com> net: aquantia: driver should correctly declare vlan_features bits van der Linden, Frank <fllinden(a)amazon.com> x86/xen: Reset VCPU0 info pointer after shared_info remap Sara Sharon <sara.sharon(a)intel.com> mac80211: use timeout from the AddBA response instead of the request Clément Péron <peron.clem(a)gmail.com> ARM: dts: cygnus: fix irq type for arm global timer Mathieu Malaterre <malat(a)debian.org> driver core: add __printf verification to __ata_ehi_pushv_desc Tomi Valkeinen <tomi.valkeinen(a)ti.com> drm/omap: handle alloc failures in omap_connector Tomi Valkeinen <tomi.valkeinen(a)ti.com> drm/omap: check return value from soc_device_match Tomi Valkeinen <tomi.valkeinen(a)ti.com> drm/omap: fix possible NULL ref issue in tiler_reserve_2d Tomi Valkeinen <tomi.valkeinen(a)ti.com> drm/omap: fix uninitialized ret variable Dan Carpenter <dan.carpenter(a)oracle.com> drm/omap: silence unititialized variable warning Ilan Peer <ilan.peer(a)intel.com> mac80211: Adjust SAE authentication timeout Naveen N. Rao <naveen.n.rao(a)linux.vnet.ibm.com> powerpc/trace/syscalls: Update syscall name matching logic to account for ppc_ prefix Naveen N. Rao <naveen.n.rao(a)linux.vnet.ibm.com> powerpc/trace/syscalls: Update syscall name matching logic Etienne Carriere <etienne.carriere(a)linaro.org> tee: check shm references are consistent in offset/size Rich Felker <dalias(a)libc.org> sh: fix build failure for J2 cpu with SMP disabled Peter Zijlstra <peterz(a)infradead.org> sched/core: Introduce set_special_state() Rob Herring <robh(a)kernel.org> spi: bcm2835aux: ensure interrupts are enabled for shared handler Parav Pandit <parav(a)mellanox.com> RDMA/cma: Do not query GID during QP state transition to RTR Sebastian Sanchez <sebastian.sanchez(a)intel.com> IB/hfi1: Fix memory leak in exception path in get_irq_affinity() Michael J. Ruhl <michael.j.ruhl(a)intel.com> IB/hfi1 Use correct type for num_user_context Stefan Raspl <stefan.raspl(a)linux.ibm.com> smc: fix sendpage() call Janusz Krzysztofik <jmkrzyszt(a)gmail.com> ARM: OMAP1: ams-delta: fix deferred_fiq handler Keith Busch <keith.busch(a)intel.com> nvme: Set integrity flag for user passthrough commands Chengguang Xu <cgxu519(a)gmx.com> nvme: fix potential memory leak in option parsing Changbin Du <changbin.du(a)intel.com> iommu/vt-d: fix shift-out-of-bounds in bug checking Bhadram Varka <vbhadram(a)nvidia.com> arm64: tegra: Make BCM89610 PHY interrupt as active low Peter Zijlstra <peterz(a)infradead.org> kthread, sched/wait: Fix kthread_parkme() wait-loop Peter Zijlstra <peterz(a)infradead.org> stop_machine, sched: Fix migrate_swap() vs. active_balance() deadlock Helge Deller <deller(a)gmx.de> parisc: drivers.c: Fix section mismatches Daniel Borkmann <daniel(a)iogearbox.net> bpf, x64: fix memleak when not converging after image Jim Gill <jgill(a)vmware.com> scsi: vmw-pvscsi: return DID_BUS_BUSY for adapter-initated aborts Arnd Bergmann <arnd(a)arndb.de> hexagon: export csum_partial_copy_nocheck Arnd Bergmann <arnd(a)arndb.de> hexagon: add memset_io() helper Nick Dyer <nick(a)shmanahar.org> Input: atmel_mxt_ts - fix the firmware update Adam Ford <aford173(a)gmail.com> ARM: dts: logicpd-som-lv: Fix Audio Mute Adam Ford <aford173(a)gmail.com> ARM: dts: logicpd-som-lv: Fix WL127x Startup Issues Tero Kristo <t-kristo(a)ti.com> ARM: OMAP2+: powerdomain: use raw_smp_processor_id() for trace Geert Uytterhoeven <geert+renesas(a)glider.be> dt-bindings: panel: lvds: Fix path to display timing bindings Sekhar Nori <nsekhar(a)ti.com> ARM: davinci: board-dm355-evm: fix broken networking Sekhar Nori <nsekhar(a)ti.com> ARM: davinci: board-omapl138-hawk: fix GPIO numbers for MMC/SD lookup Sekhar Nori <nsekhar(a)ti.com> ARM: davinci: board-da850-evm: fix GPIO lookup for MMC/SD Sekhar Nori <nsekhar(a)ti.com> ARM: davinci: board-da830-evm: fix GPIO lookup for MMC/SD Håkon Bugge <haakon.bugge(a)oracle.com> IB/core: Make ib_mad_client_id atomic Amir Goldstein <amir73il(a)gmail.com> <linux/stringhash.h>: fix end_name_hash() for 64bit long Zhu Yanjun <yanjun.zhu(a)oracle.com> IB/rxe: avoid double kfree_skb Jianchao Wang <jianchao.w.wang(a)oracle.com> IB/rxe: add RXE_START_MASK for rxe_opcode IB_OPCODE_RC_SEND_ONLY_INV Colin Ian King <colin.king(a)canonical.com> RDMA/iwpm: fix memory leak on map_info Parav Pandit <parav(a)mellanox.com> RDMA/cma: Fix use after destroy access to net namespace for IPoIB Matan Barak <matanb(a)mellanox.com> IB/uverbs: Fix validating mandatory attributes Greg Thelen <gthelen(a)google.com> IB: make INFINIBAND_ADDR_TRANS configurable Greg Thelen <gthelen(a)google.com> ib_srp: depend on INFINIBAND_ADDR_TRANS Greg Thelen <gthelen(a)google.com> ib_srpt: depend on INFINIBAND_ADDR_TRANS Greg Thelen <gthelen(a)google.com> nvmet-rdma: depend on INFINIBAND_ADDR_TRANS Greg Thelen <gthelen(a)google.com> nvme: depend on INFINIBAND_ADDR_TRANS Jon Maloy <jon.maloy(a)ericsson.com> tipc: fix bug in function tipc_nl_node_dump_monitor Baolin Wang <baolin.wang(a)linaro.org> i2c: sprd: Fix the i2c count issue Baolin Wang <baolin.wang(a)linaro.org> i2c: sprd: Prevent i2c accesses after suspend is called John Fastabend <john.fastabend(a)gmail.com> bpf: fix uninitialized variable in bpf tools jacek.tomaka(a)poczta.fm <jacek.tomaka(a)poczta.fm> x86/cpu/intel: Add missing TLB cpuid values Evan Wang <xswang(a)marvell.com> ata: ahci: mvebu: override ahci_stop_engine for mvebu AHCI Evan Wang <xswang(a)marvell.com> libahci: Allow drivers to override stop_engine Mark Rutland <mark.rutland(a)arm.com> KVM: arm/arm64: vgic: fix possible spectre-v1 in vgic_mmio_read_apr() Mark Rutland <mark.rutland(a)arm.com> arm64: fix possible spectre-v1 in ptrace_hbp_get_event() Omar Sandoval <osandov(a)fb.com> blk-mq: fix sysfs inflight counter Arvind Yadav <arvind.yadav.cs(a)gmail.com> HID: intel-ish-hid: use put_device() instead of kfree() Ramon Fried <rfried(a)codeaurora.org> rpmsg: added MODULE_ALIAS for rpmsg_char Tobias Jordan <Tobias.Jordan(a)elektrobit.com> remoteproc: qcom: Fix potential device node leaks Kan Liang <kan.liang(a)linux.intel.com> perf/x86/intel: Don't enable freeze-on-smi for PerfMon V1 Dag Moxnes <dag.moxnes(a)oracle.com> rds: ib: Fix missing call to rds_ib_dev_put in rds_ib_setup_qp Masami Hiramatsu <mhiramat(a)kernel.org> selftests: ftrace: Add a testcase for multiple actions on trigger Arvind Yadav <arvind.yadav.cs(a)gmail.com> HID: wacom: Release device resource data obtained by devres_alloc() pgzh <peter.ganzhorn(a)gmail.com> HID: lenovo: Add support for IBM/Lenovo Scrollpoint mice Mark Rutland <mark.rutland(a)arm.com> arm64: ptrace: remove addr_limit manipulation Florian Fainelli <f.fainelli(a)gmail.com> net: ethtool: Add missing kernel doc for FEC parameters Hans de Goede <hdegoede(a)redhat.com> thermal: int3403_thermal: Fix NULL pointer deref on module load / probe Andres Rodriguez <andres.rodriguez(a)amd.com> drm/amdkfd: fix clock counter retrieval for node without GPU Mika Westerberg <mika.westerberg(a)linux.intel.com> ACPI / watchdog: Prefer iTCO_wdt on Lenovo Z50-70 Sekhar Nori <nsekhar(a)ti.com> ARM: dts: da850: fix W=1 warnings with pinmux node Jingju Hou <Jingju.Hou(a)synaptics.com> net: phy: marvell: clear wol event before setting it Balbir Singh <bsingharora(a)gmail.com> powerpc/powernv/memtrace: Let the arch hotunplug code flush cache Geert Uytterhoeven <geert+renesas(a)glider.be> dt-bindings: meson-uart: DT fix s/clocks-names/clock-names/ Chen Yu <yu.c.chen(a)intel.com> ACPI / PM: Blacklist Low Power S0 Idle _DSM for ThinkPad X1 Tablet(2016) Julian Wiedmann <jwi(a)linux.vnet.ibm.com> s390/qeth: use Read device to query hypervisor for MAC Tobias Regnery <tobias.regnery(a)gmail.com> usb: typec: ucsi: fix tracepoint related build error Minchan Kim <minchan(a)kernel.org> mm: memcg: add __GFP_NOWARN in __memcg_schedule_kmem_cache_create() Dave Young <dyoung(a)redhat.com> kexec_file: do not add extra alignment to efi memmap Alexey Dobriyan <adobriyan(a)gmail.com> proc: revalidate kernel thread inodes to root:root Huang Ying <ying.huang(a)intel.com> mm, pagemap: fix swap offset value for PMD migration entry Colin Ian King <colin.king(a)canonical.com> scsi: isci: Fix infinite loop in while loop Long Li <longli(a)microsoft.com> scsi: storvsc: Set up correct queue depth values for IDE devices Baolin Wang <baolin.wang(a)linaro.org> parisc: time: Convert read_persistent_clock() to read_persistent_clock64() David Howells <dhowells(a)redhat.com> vfs: Undo an overly zealous MS_RDONLY -> SB_RDONLY conversion dann frazier <dann.frazier(a)canonical.com> net: hns: Avoid action name truncation Jiang Biao <jiang.biao2(a)zte.com.cn> blkcg: init root blkcg_gq under lock Emil Velikov <emil.velikov(a)collabora.com> drm/msm: don't deref error pointer in the msm_fbdev_create error path Stefan Agner <stefan(a)agner.ch> drm/msm/dsi: use correct enum in dsi_get_cmd_fmt Ben Hutchings <ben.hutchings(a)codethink.co.uk> drm/msm: Fix possible null dereference on failure of get_pages() Srinivas Kandagatla <srinivas.kandagatla(a)linaro.org> ASoC: msm8916-wcd-analog: use threaded context for mbhc events Taehee Yoo <ap420073(a)gmail.com> netfilter: nf_tables: fix out-of-bounds in nft_chain_commit_update Pablo Neira Ayuso <pablo(a)netfilter.org> netfilter: nf_tables: NAT chain and extensions require NF_TABLES Ming Lei <ming.lei(a)redhat.com> scsi: target: fix crash with iscsi target and dvd Vinson Lee <vlee(a)freedesktop.org> scsi: megaraid_sas: Do not log an error if FW successfully initializes. Chris Leech <cleech(a)redhat.com> scsi: iscsi: respond to netlink with unicast when appropriate Tung Nguyen <tung.q.nguyen(a)dektech.com.au> tipc: fix infinite loop when dumping link monitor summary Jiang Biao <jiang.biao2(a)zte.com.cn> blkcg: don't hold blkcg lock when deactivating policy sxauwsk <sxauwsk(a)163.com> spi: cadence: Add usleep_range() for cdns_spi_fill_tx_fifo() Liam Girdwood <liam.r.girdwood(a)linux.intel.com> ASoC: topology: Check widget kcontrols before deref. Simon Gaiser <simon(a)invisiblethingslab.com> xen: xenbus_dev_frontend: Really return response string Yan Wang <yan.wang(a)linux.intel.com> ASoC: topology: Fix bugs of freeing soc topology Loic Poulain <loic.poulain(a)linaro.org> PCI: kirin: Fix reset gpio name Geert Uytterhoeven <geert(a)linux-m68k.org> soc: bcm2835: Make !RASPBERRYPI_FIRMWARE dummies return failure Florian Fainelli <f.fainelli(a)gmail.com> soc: bcm: raspberrypi-power: Fix use of __packed Tyler Hicks <tyhicks(a)canonical.com> eCryptfs: don't pass up plaintext names when using filename encryption oder_chiou(a)realtek.com <oder_chiou(a)realtek.com> ASoC: rt5514: Add the missing register in the readable table Jerome Brunet <jbrunet(a)baylibre.com> clk: honor CLK_MUX_ROUND_CLOSEST in generic clk mux Jacopo Mondi <jacopo+renesas(a)jmondi.org> dt-bindings: dmaengine: rcar-dmac: document R8A77965 support Jacopo Mondi <jacopo+renesas(a)jmondi.org> dt-bindings: serial: sh-sci: Add support for r8a77965 (H)SCIF Matheus Castello <matheus(a)castello.eng.br> dt-bindings: pinctrl: sunxi: Fix reference to driver Lukasz Majewski <lukma(a)denx.de> doc: Add vendor prefix for Kieback & Peter GmbH Vladimir Zapolskiy <vladimir_zapolskiy(a)mentor.com> spi: sh-msiof: Fix bit field overflow writes to TSCR/RSCR Matt Redfearn <matt.redfearn(a)mips.com> MIPS: dts: Boston: Fix PCI bus dtc warnings: Chengguang Xu <cgxu519(a)gmx.com> isofs: fix potential memory leak in mount option parsing Martin Schwidefsky <schwidefsky(a)de.ibm.com> s390/smsgiucv: disable SMSG on module unload Sinan Kaya <okaya(a)codeaurora.org> MIPS: io: Add barrier after register read in readX() Amir Goldstein <amir73il(a)gmail.com> fsnotify: fix ignore mask logic in send_to_group() Arnaldo Carvalho de Melo <acme(a)redhat.com> perf report: Fix switching to another perf.data file Jakub Kicinski <jakub.kicinski(a)netronome.com> nfp: ignore signals when communicating with management FW Sinan Kaya <okaya(a)codeaurora.org> MIPS: io: Prevent compiler reordering writeX() Krish Sadhukhan <krish.sadhukhan(a)oracle.com> x86: Add check for APIC access address for vmentry of L2 guests hu huajun <huhuajun(a)linux.alibaba.com> KVM: X86: fix incorrect reference of trace_kvm_pi_irte_update Christophe JAILLET <christophe.jaillet(a)wanadoo.fr> Input: synaptics-rmi4 - fix an unchecked out of memory error path Anson Huang <Anson.Huang(a)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 + .../bindings/pinctrl/allwinner,sunxi-pinctrl.txt | 6 +- .../bindings/serial/amlogic,meson-uart.txt | 2 +- .../bindings/serial/renesas,sci-serial.txt | 2 + .../devicetree/bindings/vendor-prefixes.txt | 1 + Makefile | 4 +- 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/logicpd-som-lv.dtsi | 11 +- 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 | 6 + 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/arm64/boot/dts/nvidia/tegra186-p3310.dtsi | 2 +- arch/arm64/include/asm/cputype.h | 6 + arch/arm64/kernel/ptrace.c | 20 +- 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/platforms/powernv/memtrace.c | 17 -- arch/sh/kernel/cpu/sh2/probe.c | 4 + arch/x86/events/intel/core.c | 9 +- arch/x86/include/asm/insn.h | 18 ++ 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 | 5 +- arch/x86/kvm/vmx.c | 15 +- arch/x86/kvm/x86.c | 19 +- arch/x86/net/bpf_jit_comp.c | 4 +- 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/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/firmware/efi/libstub/arm64-stub.c | 10 + drivers/gpu/drm/amd/amdkfd/kfd_chardev.c | 13 +- drivers/gpu/drm/drm_dumb_buffers.c | 7 +- 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/hid/Kconfig | 7 +- drivers/hid/hid-ids.h | 8 + drivers/hid/hid-lenovo.c | 36 +++ 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 | 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/net/can/dev.c | 2 +- drivers/net/ethernet/aquantia/atlantic/aq_nic.c | 2 + drivers/net/ethernet/hisilicon/hns/hnae.h | 2 +- drivers/net/ethernet/intel/ixgbe/ixgbe_x550.c | 3 + .../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/marvell.c | 9 + drivers/nvme/host/Kconfig | 2 +- drivers/nvme/host/core.c | 1 + drivers/nvme/host/fabrics.c | 6 + drivers/nvme/target/Kconfig | 2 +- drivers/pci/dwc/pcie-kirin.c | 2 +- drivers/remoteproc/qcom_q6v5_pil.c | 2 + drivers/rpmsg/rpmsg_char.c | 2 + drivers/s390/net/qeth_core_main.c | 2 +- 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/ucsi/Makefile | 2 +- drivers/xen/xenbus/xenbus_dev_frontend.c | 3 +- fs/afs/rxrpc.c | 7 + fs/btrfs/scrub.c | 44 +++- fs/cifs/smb2ops.c | 6 + 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/task_mmu.c | 6 +- include/linux/clk-provider.h | 3 + include/linux/ethtool.h | 2 + include/linux/genhd.h | 4 +- include/linux/kvm_host.h | 8 +- include/linux/mtd/map.h | 2 +- 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/kthread.c | 7 +- kernel/locking/rwsem-xadd.c | 19 +- kernel/locking/rwsem.c | 2 - kernel/locking/rwsem.h | 30 ++- kernel/module.c | 5 + kernel/sched/core.c | 17 +- kernel/sched/deadline.c | 4 +- kernel/sched/rt.c | 2 - kernel/sched/sched.h | 5 +- kernel/signal.c | 17 +- kernel/stop_machine.c | 19 +- mm/memcontrol.c | 2 +- net/ipv4/tcp_input.c | 2 +- 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/local_object.c | 57 +++-- net/sched/act_skbedit.c | 3 +- net/smc/af_smc.c | 6 +- net/tipc/monitor.c | 2 +- net/tipc/node.c | 28 +- sound/soc/codecs/msm8916-wcd-analog.c | 9 +- sound/soc/codecs/rt5514.c | 3 + sound/soc/soc-topology.c | 6 +- tools/net/bpf_dbg.c | 7 +- tools/objtool/arch/x86/include/asm/insn.h | 18 ++ 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/protection_keys.c | 254 ++++++++++++------ virt/kvm/arm/vgic/vgic-mmio-v2.c | 5 + 196 files changed, 1886 insertions(+), 674 deletions(-)

7 years, 3 months

5
179
0 0

[PATCH] mtd: rawnand: mxc: set spare area size register explicitly

by Martin Kaiser

The v21 version of the NAND flash controller contains a Spare Area Size Register (SPAS) at offset 0x10. Its setting defaults to the maximum spare area size of 218 bytes. The size that is set in this register is used by the controller when it calculates the ECC bytes internally in hardware. Usually, this register is updated from settings in the IIM fuses when the system is booting from nand flash. For other boot media, however, the SPAS register remains at the default setting, which may not work for the particular flash chip on the board. The same goes for flash chips whose configuration cannot be set in the IIM fuses (e.g. chips with 2k sector size and 128 bytes spare area size can't be configured in the IIM fuses on imx25 systems). Set the SPAS register explicitly during the preset operation. Derive the register value from mtd->oobsize that was detected during probe by decoding the flash chip's ID bytes. While at it, rename the define for the spare area register's offset to NFC_V21_RSLTSPARE_AREA. The register at offset 0x10 on v1 controllers is different from the register on v21 controllers. Signed-off-by: Martin Kaiser <martin(a)kaiser.cx> Cc: stable(a)vger.kernel.org --- drivers/mtd/nand/raw/mxc_nand.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/mtd/nand/raw/mxc_nand.c b/drivers/mtd/nand/raw/mxc_nand.c index 45786e7..c2f8572 100644 --- a/drivers/mtd/nand/raw/mxc_nand.c +++ b/drivers/mtd/nand/raw/mxc_nand.c @@ -48,7 +48,7 @@ #define NFC_V1_V2_CONFIG (host->regs + 0x0a) #define NFC_V1_V2_ECC_STATUS_RESULT (host->regs + 0x0c) #define NFC_V1_V2_RSLTMAIN_AREA (host->regs + 0x0e) -#define NFC_V1_V2_RSLTSPARE_AREA (host->regs + 0x10) +#define NFC_V21_RSLTSPARE_AREA (host->regs + 0x10) #define NFC_V1_V2_WRPROT (host->regs + 0x12) #define NFC_V1_UNLOCKSTART_BLKADDR (host->regs + 0x14) #define NFC_V1_UNLOCKEND_BLKADDR (host->regs + 0x16) @@ -1274,6 +1274,9 @@ static void preset_v2(struct mtd_info *mtd) writew(config1, NFC_V1_V2_CONFIG1); /* preset operation */ + /* spare area size in 16bit words */ + writew(mtd->oobsize >> 1, NFC_V21_RSLTSPARE_AREA); + /* Unlock the internal RAM Buffer */ writew(0x2, NFC_V1_V2_CONFIG); -- 2.1.4

7 years, 3 months

4
11
0 0

[PATCH] MIPS: implement smp_cond_load_acquire() for Loongson-3

by Huacai Chen

After commit 7f56b58a92aaf2c ("locking/mcs: Use smp_cond_load_acquire() in MCS spin loop") Loongson-3 fails to boot. This is because Loongson-3 has SFB (Store Fill Buffer) and READ_ONCE() may get an old value in a tight loop. So in smp_cond_load_acquire() we need a __smp_mb() after every READ_ONCE(). This patch introduce a Loongson-specific smp_cond_load_acquire(). And it should be backported to as early as linux-4.5, in which release the smp_cond_acquire() is introduced. Cc: stable(a)vger.kernel.org Signed-off-by: Huacai Chen <chenhc(a)lemote.com> --- arch/mips/include/asm/barrier.h | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) diff --git a/arch/mips/include/asm/barrier.h b/arch/mips/include/asm/barrier.h index a5eb1bb..4ea384d 100644 --- a/arch/mips/include/asm/barrier.h +++ b/arch/mips/include/asm/barrier.h @@ -222,6 +222,23 @@ #define __smp_mb__before_atomic() __smp_mb__before_llsc() #define __smp_mb__after_atomic() smp_llsc_mb() +#ifdef CONFIG_CPU_LOONGSON3 +/* Loongson-3 need a __smp_mb() after READ_ONCE() here */ +#define smp_cond_load_acquire(ptr, cond_expr) \ +({ \ + typeof(ptr) __PTR = (ptr); \ + typeof(*ptr) VAL; \ + for (;;) { \ + VAL = READ_ONCE(*__PTR); \ + __smp_mb(); \ + if (cond_expr) \ + break; \ + cpu_relax(); \ + } \ + VAL; \ +}) +#endif /* CONFIG_CPU_LOONGSON3 */ + #include <asm-generic/barrier.h> #endif /* __ASM_BARRIER_H */ -- 2.7.0

7 years, 3 months

5
8
0 0

[PATCH v2 1/2] net: ethernet: fix suspend/resume in davinci_emac

by Bartosz Golaszewski

From: Bartosz Golaszewski <bgolaszewski(a)baylibre.com> This patch reverts commit 3243ff2a05ec ("net: ethernet: davinci_emac: Deduplicate bus_find_device() by name matching") and adds a comment which should stop anyone from reintroducing the same "fix" in the future. We can't use bus_find_device_by_name() here because the device name is not guaranteed to be 'davinci_mdio'. On some systems it can be 'davinci_mdio.0' so we need to use strncmp() against the first part of the string to correctly match it. Fixes: 3243ff2a05ec ("net: ethernet: davinci_emac: Deduplicate bus_find_device() by name matching") Cc: stable(a)vger.kernel.org Signed-off-by: Bartosz Golaszewski <bgolaszewski(a)baylibre.com> Acked-by: Lukas Wunner <lukas(a)wunner.de> --- drivers/net/ethernet/ti/davinci_emac.c | 15 +++++++++++++-- 1 file changed, 13 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/ti/davinci_emac.c b/drivers/net/ethernet/ti/davinci_emac.c index 06d7c9e4dcda..a1a6445b5a7e 100644 --- a/drivers/net/ethernet/ti/davinci_emac.c +++ b/drivers/net/ethernet/ti/davinci_emac.c @@ -1385,6 +1385,11 @@ static int emac_devioctl(struct net_device *ndev, struct ifreq *ifrq, int cmd) return -EOPNOTSUPP; } +static int match_first_device(struct device *dev, void *data) +{ + return !strncmp(dev_name(dev), "davinci_mdio", 12); +} + /** * emac_dev_open - EMAC device open * @ndev: The DaVinci EMAC network adapter @@ -1484,8 +1489,14 @@ static int emac_dev_open(struct net_device *ndev) /* use the first phy on the bus if pdata did not give us a phy id */ if (!phydev && !priv->phy_id) { - phy = bus_find_device_by_name(&mdio_bus_type, NULL, - "davinci_mdio"); + /* NOTE: we can't use bus_find_device_by_name() here because + * the device name is not guaranteed to be 'davinci_mdio'. On + * some systems it can be 'davinci_mdio.0' so we need to use + * strncmp() against the first part of the string to correctly + * match it. + */ + phy = bus_find_device(&mdio_bus_type, NULL, NULL, + match_first_device); if (phy) { priv->phy_id = dev_name(phy); if (!priv->phy_id || !*priv->phy_id) -- 2.17.1

7 years, 3 months

1
0
0 0

[PATCH 1/3] net: ethernet: fix suspend/resume in davinci_emac

by Bartosz Golaszewski

From: Bartosz Golaszewski <bgolaszewski(a)baylibre.com> This patch reverts commit 3243ff2a05ec ("net: ethernet: davinci_emac: Deduplicate bus_find_device() by name matching") and adds a comment which should stop anyone from reintroducing the same "fix" in the future. We can't use bus_find_device_by_name() here because the device name is not guaranteed to be 'davinci_mdio'. On some systems it can be 'davinci_mdio.0' so we need to use strncmp() against the first part of the string to correctly match it. Fixes: 3243ff2a05ec ("net: ethernet: davinci_emac: Deduplicate bus_find_device() by name matching") Cc: stable(a)vger.kernel.org Signed-off-by: Bartosz Golaszewski <bgolaszewski(a)baylibre.com> --- drivers/net/ethernet/ti/davinci_emac.c | 15 +++++++++++++-- 1 file changed, 13 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/ti/davinci_emac.c b/drivers/net/ethernet/ti/davinci_emac.c index 06d7c9e4dcda..a1a6445b5a7e 100644 --- a/drivers/net/ethernet/ti/davinci_emac.c +++ b/drivers/net/ethernet/ti/davinci_emac.c @@ -1385,6 +1385,11 @@ static int emac_devioctl(struct net_device *ndev, struct ifreq *ifrq, int cmd) return -EOPNOTSUPP; } +static int match_first_device(struct device *dev, void *data) +{ + return !strncmp(dev_name(dev), "davinci_mdio", 12); +} + /** * emac_dev_open - EMAC device open * @ndev: The DaVinci EMAC network adapter @@ -1484,8 +1489,14 @@ static int emac_dev_open(struct net_device *ndev) /* use the first phy on the bus if pdata did not give us a phy id */ if (!phydev && !priv->phy_id) { - phy = bus_find_device_by_name(&mdio_bus_type, NULL, - "davinci_mdio"); + /* NOTE: we can't use bus_find_device_by_name() here because + * the device name is not guaranteed to be 'davinci_mdio'. On + * some systems it can be 'davinci_mdio.0' so we need to use + * strncmp() against the first part of the string to correctly + * match it. + */ + phy = bus_find_device(&mdio_bus_type, NULL, NULL, + match_first_device); if (phy) { priv->phy_id = dev_name(phy); if (!priv->phy_id || !*priv->phy_id) -- 2.17.1

7 years, 3 months

3
3
0 0

[PATCH v4 06/15] mtd: rawnand: qcom: wait for desc completion in all BAM channels

by Abhishek Sahu

The BAM has 3 channels - tx, rx and command. command channel is used for register read/writes, tx channel for data writes and rx channel for data reads. Currently, the driver assumes the transfer completion once it gets all the command descriptors completed. Sometimes, there is race condition between data channel (tx/rx) and command channel completion. In these cases, the data present in buffer is not valid during small window between command descriptor completion and data descriptor completion. This patch generates NAND transfer completion when both (Data and Command) DMA channels have completed all its DMA descriptors. It assigns completion callback in last DMA descriptors of that channel and wait for completion. Fixes: 8d6b6d7e135e ("mtd: nand: qcom: support for command descriptor formation") Cc: stable(a)vger.kernel.org Acked-by: Miquel Raynal <miquel.raynal(a)bootlin.com> Signed-off-by: Abhishek Sahu <absahu(a)codeaurora.org> --- * Changes from v3: 1. NONE * Changes from v2: 1. Changed commit message and comments slightly 2. Renamed wait_second_completion from first_chan_done and set it before submit desc 3. Mark for stable tree * Changes from v1: NONE drivers/mtd/nand/raw/qcom_nandc.c | 53 ++++++++++++++++++++++++++++++++++++++- 1 file changed, 52 insertions(+), 1 deletion(-) diff --git a/drivers/mtd/nand/raw/qcom_nandc.c b/drivers/mtd/nand/raw/qcom_nandc.c index 2375780..fc20149 100644 --- a/drivers/mtd/nand/raw/qcom_nandc.c +++ b/drivers/mtd/nand/raw/qcom_nandc.c @@ -213,6 +213,8 @@ #define QPIC_PER_CW_CMD_SGL 32 #define QPIC_PER_CW_DATA_SGL 8 +#define QPIC_NAND_COMPLETION_TIMEOUT msecs_to_jiffies(2000) + /* * Flags used in DMA descriptor preparation helper functions * (i.e. read_reg_dma/write_reg_dma/read_data_dma/write_data_dma) @@ -245,6 +247,11 @@ * @tx_sgl_start - start index in data sgl for tx. * @rx_sgl_pos - current index in data sgl for rx. * @rx_sgl_start - start index in data sgl for rx. + * @wait_second_completion - wait for second DMA desc completion before making + * the NAND transfer completion. + * @txn_done - completion for NAND transfer. + * @last_data_desc - last DMA desc in data channel (tx/rx). + * @last_cmd_desc - last DMA desc in command channel. */ struct bam_transaction { struct bam_cmd_element *bam_ce; @@ -258,6 +265,10 @@ struct bam_transaction { u32 tx_sgl_start; u32 rx_sgl_pos; u32 rx_sgl_start; + bool wait_second_completion; + struct completion txn_done; + struct dma_async_tx_descriptor *last_data_desc; + struct dma_async_tx_descriptor *last_cmd_desc; }; /* @@ -504,6 +515,8 @@ static void free_bam_transaction(struct qcom_nand_controller *nandc) bam_txn->data_sgl = bam_txn_buf; + init_completion(&bam_txn->txn_done); + return bam_txn; } @@ -523,11 +536,33 @@ static void clear_bam_transaction(struct qcom_nand_controller *nandc) bam_txn->tx_sgl_start = 0; bam_txn->rx_sgl_pos = 0; bam_txn->rx_sgl_start = 0; + bam_txn->last_data_desc = NULL; + bam_txn->wait_second_completion = false; sg_init_table(bam_txn->cmd_sgl, nandc->max_cwperpage * QPIC_PER_CW_CMD_SGL); sg_init_table(bam_txn->data_sgl, nandc->max_cwperpage * QPIC_PER_CW_DATA_SGL); + + reinit_completion(&bam_txn->txn_done); +} + +/* Callback for DMA descriptor completion */ +static void qpic_bam_dma_done(void *data) +{ + struct bam_transaction *bam_txn = data; + + /* + * In case of data transfer with NAND, 2 callbacks will be generated. + * One for command channel and another one for data channel. + * If current transaction has data descriptors + * (i.e. wait_second_completion is true), then set this to false + * and wait for second DMA descriptor completion. + */ + if (bam_txn->wait_second_completion) + bam_txn->wait_second_completion = false; + else + complete(&bam_txn->txn_done); } static inline struct qcom_nand_host *to_qcom_nand_host(struct nand_chip *chip) @@ -756,6 +791,12 @@ static int prepare_bam_async_desc(struct qcom_nand_controller *nandc, desc->dma_desc = dma_desc; + /* update last data/command descriptor */ + if (chan == nandc->cmd_chan) + bam_txn->last_cmd_desc = dma_desc; + else + bam_txn->last_data_desc = dma_desc; + list_add_tail(&desc->node, &nandc->desc_list); return 0; @@ -1273,10 +1314,20 @@ static int submit_descs(struct qcom_nand_controller *nandc) cookie = dmaengine_submit(desc->dma_desc); if (nandc->props->is_bam) { + bam_txn->last_cmd_desc->callback = qpic_bam_dma_done; + bam_txn->last_cmd_desc->callback_param = bam_txn; + if (bam_txn->last_data_desc) { + bam_txn->last_data_desc->callback = qpic_bam_dma_done; + bam_txn->last_data_desc->callback_param = bam_txn; + bam_txn->wait_second_completion = true; + } + dma_async_issue_pending(nandc->tx_chan); dma_async_issue_pending(nandc->rx_chan); + dma_async_issue_pending(nandc->cmd_chan); - if (dma_sync_wait(nandc->cmd_chan, cookie) != DMA_COMPLETE) + if (!wait_for_completion_timeout(&bam_txn->txn_done, + QPIC_NAND_COMPLETION_TIMEOUT)) return -ETIMEDOUT; } else { if (dma_sync_wait(nandc->chan, cookie) != DMA_COMPLETE) -- QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, hosted by The Linux Foundation

7 years, 3 months

1
0
0 0

[PATCH] printk/nmi: Prevent deadlock when serializing NMI backtraces

by Petr Mladek

The commit 719f6a7040f1bdaf96fcc ("printk: Use the main logbuf in NMI when logbuf_lock is available") tried to detect when logbuf_lock was taken on another CPU. Then it looked safe to wait for the lock even in NMI. It would be safe if other locks were not involved. Ironically the same commit introduced an ABBA deadlock scenario. It added a spin lock into nmi_cpu_backtrace() to serialize logs from different CPUs. The effect is that also the NMI handlers are serialized. As a result, logbuf_lock might be blocked by NMI on another CPU: CPU0 CPU1 CPU2 printk() vprintk_emit() spin_lock(&logbuf_lock) trigger_all_cpu_backtrace() raise() nmi_enter() printk_nmi_enter() if (this_cpu_read(printk_context) & PRINTK_SAFE_CONTEXT_MASK) // false else // looks safe to use printk_deferred() this_cpu_or(printk_context, PRINTK_NMI_DEFERRED_CONTEXT_MASK); nmi_cpu_backtrace() arch_spin_lock(&lock); show_regs() nmi_enter() nmi_cpu_backtrace() arch_spin_lock(&lock); printk() vprintk_func() vprintk_deferred() vprintk_emit() spin_lock(&logbuf_lock) DEADLOCK: between &logbuf_lock from vprintk_emit() and &lock from nmi_cpu_backtrace(). CPU0 CPU1 lock(logbuf_lock) lock(lock) lock(lock) lock(logbuf_lock) I have found this problem when stress testing trigger_all_cpu_backtrace() and the system frozen. Note that lockdep is not able to detect these dependencies because there is no support for NMI context. Let's stay on the safe side and always use printk_safe buffers when logbuf_lock is taken when entering NMI. Fixes: 719f6a7040f1bdaf96fcc ("printk: Use the main logbuf in NMI when logbuf_lock is available") Cc: 4.13+ <stable(a)vger.kernel.org> # v4.13+ Signed-off-by: Petr Mladek <pmladek(a)suse.com> --- kernel/printk/printk_safe.c | 9 +++------ 1 file changed, 3 insertions(+), 6 deletions(-) diff --git a/kernel/printk/printk_safe.c b/kernel/printk/printk_safe.c index 449d67edfa4b..a2ebd749c053 100644 --- a/kernel/printk/printk_safe.c +++ b/kernel/printk/printk_safe.c @@ -310,15 +310,12 @@ void printk_nmi_enter(void) { /* * The size of the extra per-CPU buffer is limited. Use it only when - * the main one is locked. If this CPU is not in the safe context, - * the lock must be taken on another CPU and we could wait for it. + * the main one is locked. */ - if ((this_cpu_read(printk_context) & PRINTK_SAFE_CONTEXT_MASK) && - raw_spin_is_locked(&logbuf_lock)) { + if (raw_spin_is_locked(&logbuf_lock)) this_cpu_or(printk_context, PRINTK_NMI_CONTEXT_MASK); - } else { + else this_cpu_or(printk_context, PRINTK_NMI_DEFERRED_CONTEXT_MASK); - } } void printk_nmi_exit(void) -- 2.13.6

7 years, 3 months

4
21
0 0

Re: [PATCH 3.18 00/21] 3.18.113-stable review

by Greg Kroah-Hartman

On Tue, Jun 12, 2018 at 03:08:12PM -0700, kernelci.org bot wrote: > stable-rc/linux-3.18.y boot: 52 boots: 28 failed, 18 passed with 1 offline, 5 conflicts (v3.18.112-22-gb0582263e3c9) > > Full Boot Summary: https://kernelci.org/boot/all/job/stable-rc/branch/linux-3.18.y/kernel/v3.1… > Full Build Summary: https://kernelci.org/build/stable-rc/branch/linux-3.18.y/kernel/v3.18.112-2… > > Tree: stable-rc > Branch: linux-3.18.y > Git Describe: v3.18.112-22-gb0582263e3c9 > Git Commit: b0582263e3c9810fd887ca92d19cb9ff30a4d9f6 > Git URL: http://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git > Tested: 24 unique boards, 12 SoC families, 13 builds out of 183 > > Boot Regressions Detected: > > arm: > > bcm2835_defconfig: > bcm2835-rpi-b: > lab-baylibre-seattle: new failure (last pass: v3.18.112) > > davinci_all_defconfig: > dm365evm,legacy: > lab-baylibre-seattle: new failure (last pass: v3.18.112) > > exynos_defconfig: > exynos5800-peach-pi: > lab-baylibre-seattle: new failure (last pass: v3.18.112) > > imx_v6_v7_defconfig: > imx6dl-wandboard_dual: > lab-baylibre-seattle: new failure (last pass: v3.18.112) > imx6dl-wandboard_solo: > lab-baylibre-seattle: new failure (last pass: v3.18.112) > imx6q-wandboard: > lab-baylibre-seattle: new failure (last pass: v3.18.112) > > multi_v7_defconfig: > am335x-boneblack: > lab-baylibre-seattle: new failure (last pass: v3.18.112) > armada-xp-openblocks-ax3-4: > lab-baylibre-seattle: new failure (last pass: v3.18.112) > exynos5800-peach-pi: > lab-baylibre-seattle: new failure (last pass: v3.18.112) > imx6dl-wandboard_dual: > lab-baylibre-seattle: new failure (last pass: v3.18.112) > imx6dl-wandboard_solo: > lab-baylibre-seattle: new failure (last pass: v3.18.112) > imx6q-wandboard: > lab-baylibre-seattle: new failure (last pass: v3.18.112) > omap3-beagle: > lab-baylibre-seattle: new failure (last pass: v3.18.112) > omap3-beagle-xm: > lab-baylibre-seattle: new failure (last pass: v3.18.112) > omap4-panda: > lab-baylibre-seattle: new failure (last pass: v3.18.112) > sun4i-a10-cubieboard: > lab-baylibre-seattle: new failure (last pass: v3.18.112) > sun7i-a20-cubietruck: > lab-baylibre-seattle: new failure (last pass: v3.18.112) > tegra124-jetson-tk1: > lab-baylibre-seattle: new failure (last pass: v3.18.112) > tegra20-iris-512: > lab-baylibre-seattle: new failure (last pass: v3.18.112) > tegra30-beaver: > lab-baylibre-seattle: new failure (last pass: v3.18.112) > zynq-zc702: > lab-baylibre-seattle: new failure (last pass: v3.18.112) > > mvebu_v7_defconfig: > armada-xp-openblocks-ax3-4: > lab-baylibre-seattle: new failure (last pass: v3.18.112) > > omap2plus_defconfig: > am335x-boneblack: > lab-baylibre-seattle: new failure (last pass: v3.18.112) > omap3-beagle: > lab-baylibre-seattle: new failure (last pass: v3.18.112) > omap3-beagle-xm: > lab-baylibre-seattle: new failure (last pass: v3.18.112) > omap3-beagle-xm,legacy: > lab-baylibre-seattle: new failure (last pass: v3.18.112) > omap4-panda: > lab-baylibre-seattle: new failure (last pass: v3.18.112) > > sama5_defconfig: > at91-sama5d4ek: > lab-baylibre-seattle: new failure (last pass: v3.18.112) > > sunxi_defconfig: > sun4i-a10-cubieboard: > lab-baylibre-seattle: new failure (last pass: v3.18.112) > sun7i-a20-cubietruck: > lab-baylibre-seattle: new failure (last pass: v3.18.112) > > tegra_defconfig: > tegra124-jetson-tk1: > lab-baylibre-seattle: new failure (last pass: v3.18.112) > tegra20-iris-512: > lab-baylibre-seattle: new failure (last pass: v3.18.112) > tegra30-beaver: > lab-baylibre-seattle: new failure (last pass: v3.18.112) That is a lot of new failures, did the whole lab fail, or is this really a problem in v3.18.112 here? thanks, greg k-h

7 years, 3 months

3
4
0 0

[PATCH v3] target: fix truncated PR-in ReadKeys response

by David Disseldorp

SPC5r17 states that the contents of the ADDITIONAL LENGTH field are not altered based on the allocation length, so always calculate and pack the full key list length even if the list itself is truncated. According to Maged: Yes it fixes the "Storage Spaces Persistent Reservation" test in the Windows 2016 Server Failover Cluster validation suites when having many connections that result in more than 8 registrations. I tested your patch on 4.17 with iblock. This behaviour can be tested using the libiscsi PrinReadKeys.Truncate test. Cc: stable(a)vger.kernel.org Signed-off-by: David Disseldorp <ddiss(a)suse.de> Reviewed-by: Mike Christie <mchristi(a)redhat.com> Tested-by: Maged Mokhtar <mmokhtar(a)petasan.org> Reviewed-by: Christoph Hellwig <hch(a)lst.de> --- Changes since v2: * drop unnecessary braces * add Christoph's Reviewed-by Changes since v1: * CC stable * mention Maged's Windows PR test fix comment in commit message * add Reviewed-by and Tested-by tags drivers/target/target_core_pr.c | 15 ++++++++++----- 1 file changed, 10 insertions(+), 5 deletions(-) diff --git a/drivers/target/target_core_pr.c b/drivers/target/target_core_pr.c index 01ac306131c1..10db5656fd5d 100644 --- a/drivers/target/target_core_pr.c +++ b/drivers/target/target_core_pr.c @@ -3727,11 +3727,16 @@ core_scsi3_pri_read_keys(struct se_cmd *cmd) * Check for overflow of 8byte PRI READ_KEYS payload and * next reservation key list descriptor. */ - if ((add_len + 8) > (cmd->data_length - 8)) - break; - - put_unaligned_be64(pr_reg->pr_res_key, &buf[off]); - off += 8; + if (off + 8 <= cmd->data_length) { + put_unaligned_be64(pr_reg->pr_res_key, &buf[off]); + off += 8; + } + /* + * SPC5r17: 6.16.2 READ KEYS service action + * The ADDITIONAL LENGTH field indicates the number of bytes in + * the Reservation key list. The contents of the ADDITIONAL + * LENGTH field are not altered based on the allocation length + */ add_len += 8; } spin_unlock(&dev->t10_pr.registration_lock); -- 2.13.7

7 years, 3 months

2
1
0 0

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