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[PATCH 4.14 000/159] 4.14.22-stable review

by Greg Kroah-Hartman

This is the start of the stable review cycle for the 4.14.22 release. There are 159 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 Sun Feb 25 17:06:38 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-4.14.22-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 4.14.22-rc1 Michal Hocko <mhocko(a)suse.com> vmalloc: fix __GFP_HIGHMEM usage for vmalloc_32 on 32b systems Tomas Winkler <tomas.winkler(a)intel.com> mei: me: add cannon point device ids for 4th device Alexander Usyskin <alexander.usyskin(a)intel.com> mei: me: add cannon point device ids Kamil Konieczny <k.konieczny(a)partner.samsung.com> crypto: s5p-sss - Fix kernel Oops in AES-ECB mode Arnd Bergmann <arnd(a)arndb.de> drm/i915: fix intel_backlight_device_register declaration LEROY Christophe <christophe.leroy(a)c-s.fr> crypto: talitos - fix Kernel Oops on hashing an empty file Jia-Ju Bai <baijiaju1990(a)163.com> hippi: Fix a Fix a possible sleep-in-atomic bug in rr_close Anju T Sudhakar <anju(a)linux.vnet.ibm.com> powerpc/perf/imc: Fix nest-imc cpuhotplug callback failure Geert Uytterhoeven <geert+renesas(a)glider.be> PCI: rcar: Fix use-after-free in probe error path Jan Beulich <JBeulich(a)suse.com> xen: XEN_ACPI_PROCESSOR is Dom0-only Pali Rohár <pali.rohar(a)gmail.com> platform/x86: dell-laptop: Fix keyboard max lighting for Dell Latitude E6410 Karol Herbst <kherbst(a)redhat.com> x86/mm/kmmio: Fix mmiotrace for page unaligned addresses Dave Young <dyoung(a)redhat.com> mm/early_ioremap: Fix boot hang with earlyprintk=efi,keep Andreas Platschek <andreas.platschek(a)opentech.at> usb: dwc3: of-simple: fix missing clk_disable_unprepare Vincent Pelletier <plr.vincent(a)gmail.com> usb: dwc3: gadget: Wait longer for controller to end command processing Tobias Jordan <Tobias.Jordan(a)elektrobit.com> dmaengine: jz4740: disable/unprepare clk if probe fails Stefan Schake <stschake(a)gmail.com> drm/vc4: Release fence after signalling Jiada Wang <jiada_wang(a)mentor.com> ASoC: rsnd: ssi: fix race condition in rsnd_ssi_pointer_update Russell King <rmk+kernel(a)armlinux.org.uk> drm/armada: fix leak of crtc structure Steffen Klassert <steffen.klassert(a)secunet.com> xfrm: Fix stack-out-of-bounds with misconfigured transport mode policies. Guy Levi <guyle(a)mellanox.com> IB/mlx4: Fix RSS hash fields restrictions Takuo Koguchi <takuo.koguchi(a)gmail.com> spi: sun4i: disable clocks in the remove function Stefan Potyra <Stefan.Potyra(a)elektrobit.com> ASoC: rockchip: disable clock on error Dan Carpenter <dan.carpenter(a)oracle.com> staging: ccree: Uninitialized return in ssi_ahash_import() Cai Li <cai.li(a)spreadtrum.com> clk: fix a panic error caused by accessing NULL pointer Jann Horn <jannh(a)google.com> netfilter: xt_bpf: add overflow checks Aviv Heller <avivh(a)mellanox.com> xfrm: Fix xfrm_input() to verify state is valid when (encap_type < 0) Gustavo A. R. Silva <garsilva(a)embeddedor.com> dmaengine: at_hdmac: fix potential NULL pointer dereference in atc_prep_dma_interleaved Christophe JAILLET <christophe.jaillet(a)wanadoo.fr> dmaengine: ioat: Fix error handling path Arnd Bergmann <arnd(a)arndb.de> scsi: bfa: fix type conversion warning Johannes Thumshirn <jthumshirn(a)suse.de> scsi: bfa: fix access to bfad_im_port_s Dan Carpenter <dan.carpenter(a)oracle.com> scsi: lpfc: Use after free in lpfc_rq_buf_free() Claudiu Manoil <claudiu.manoil(a)nxp.com> gianfar: Disable EEE autoneg by default Eric Biggers <ebiggers3(a)gmail.com> 509: fix printing uninitialized stack memory when OID is empty Andrew Lunn <andrew(a)lunn.ch> net: dsa: mv88e6xxx: Unregister MDIO bus on error path Andrew Lunn <andrew(a)lunn.ch> net: dsa: mv88e6xxx: Fix interrupt masking on removal Branislav Radocaj <branislav(a)radocaj.org> net: ethernet: arc: fix error handling in emac_rockchip_probe Yunjian Wang <wangyunjian(a)huawei.com> virtio_net: fix return value check in receive_mergeable() Andy Shevchenko <andriy.shevchenko(a)linux.intel.com> brcmfmac: Avoid build error with make W=1 Nikolay Borisov <nborisov(a)suse.com> btrfs: Fix possible off-by-one in btrfs_search_path_in_tree Omar Sandoval <osandov(a)fb.com> Btrfs: disable FUA if mounted with nobarrier Justin Maggard <jmaggard10(a)gmail.com> btrfs: Fix quota reservation leak on preallocated files Peter Zijlstra <peterz(a)infradead.org> locking/lockdep: Fix possible NULL deref Subash Abhinov Kasiviswanathan <subashab(a)codeaurora.org> net: qualcomm: rmnet: Fix leak on transmit failure Jim Mattson <jmattson(a)google.com> KVM: VMX: fix page leak in hardware_setup() Stefan Hajnoczi <stefanha(a)redhat.com> VSOCK: fix outdated sk_state value in hvs_release() Nogah Frankel <nogahf(a)mellanox.com> net_sched: red: Avoid illegal values Nogah Frankel <nogahf(a)mellanox.com> net_sched: red: Avoid devision by zero Zumeng Chen <zumeng.chen(a)gmail.com> gianfar: fix a flooded alignment reports because of padding issue. Pieter Jansen van Vuuren <pieter.jansenvanvuuren(a)netronome.com> nfp: fix port stats for mac representors Tony Lindgren <tony(a)atomide.com> ARM: dts: Fix elm interrupt compiler warning Stefan Haberland <sth(a)linux.vnet.ibm.com> s390/dasd: prevent prefix I/O error Michael S. Tsirkin <mst(a)redhat.com> s390/virtio: add BSD license to virtio-ccw Rafael J. Wysocki <rafael.j.wysocki(a)intel.com> PM / runtime: Fix handling of suppliers with disabled runtime PM Ravi Bangoria <ravi.bangoria(a)linux.vnet.ibm.com> powerpc/perf: Fix oops when grouping different pmu events Greg Ungerer <gerg(a)linux-m68k.org> m68k: add missing SOFTIRQENTRY_TEXT linker section Gao Feng <gfree.wind(a)vip.163.com> ipvlan: Add the skb->mark as flow4's member to lookup route Ray Jui <ray.jui(a)broadcom.com> bnxt_en: Need to unconditionally shut down RoCE in bnxt_shutdown Will Deacon <will.deacon(a)arm.com> scripts/kernel-doc: Don't fail with status != 0 if error encountered with -none Randy Dunlap <rdunlap(a)infradead.org> iio: fix kernel-doc build errors Andy Shevchenko <andriy.shevchenko(a)linux.intel.com> iio: proximity: sx9500: Assign interrupt from GpioIo() Shaohua Li <shli(a)fb.com> md/raid1/10: add missed blk plug Russell King <rmk+kernel(a)armlinux.org.uk> phylink: ensure we take the link down when phylink_stop() is called Russell King <rmk+kernel(a)armlinux.org.uk> sfp: fix RX_LOS signal handling Xin Long <lucien.xin(a)gmail.com> sctp: only update outstanding_bytes for transmitted queue when doing prsctp_prune bingjingc <bingjingc(a)synology.com> md/raid5: correct degraded calculation in raid5_error Dmitry Monakhov <dmonakhov(a)openvz.org> IB/core: Init subsys if compiled to vmlinuz-core Moni Shoua <monis(a)mellanox.com> RDMA/cma: Make sure that PSN is not over max allowed Mustafa Ismail <mustafa.ismail(a)intel.com> i40iw: Correct ARP index mask Mustafa Ismail <mustafa.ismail(a)intel.com> i40iw: Do not free sqbuf when event is I40IW_TIMER_TYPE_CLOSE Chien Tin Tung <chien.tin.tung(a)intel.com> i40iw: Allocate a sdbuf per CQP WQE Marc Zyngier <marc.zyngier(a)arm.com> KVM: arm/arm64: Fix spinlock acquisition in vgic_set_owner Arnaud Patard <arnaud.patard(a)rtp-net.org> meson-gx-socinfo: Fix package id parsing Dennis Dalessandro <dennis.dalessandro(a)intel.com> IB/hfi1: Initialize bth1 in 16B rc ack builder Andre Przywara <andre.przywara(a)arm.com> pinctrl: sunxi: Fix A64 UART mux value Andre Przywara <andre.przywara(a)arm.com> pinctrl: sunxi: Fix A80 interrupt pin bank Keerthy <j-keerthy(a)ti.com> gpio: davinci: Assign first bank regs for unbanked case Geert Uytterhoeven <geert+renesas(a)glider.be> gpio: 74x164: Fix crash during .remove() Yan Markman <ymarkman(a)marvell.com> net: mvpp2: allocate zeroed tx descriptors Sakari Ailus <sakari.ailus(a)linux.intel.com> media: ov13858: Select V4L2_FWNODE Mauro Carvalho Chehab <mchehab(a)kernel.org> media: s5k6aa: describe some function parameters Xie XiuQi <xiexiuqi(a)huawei.com> trace/xdp: fix compile warning: 'struct bpf_map' declared inside parameter list Ard Biesheuvel <ard.biesheuvel(a)linaro.org> kvm: arm: don't treat unavailable HYP mode as an error Andy Shevchenko <andriy.shevchenko(a)linux.intel.com> pinctrl: denverton: Fix UART2 RTS pin mode Thomas Richter <tmricht(a)linux.vnet.ibm.com> perf test: Fix test 21 for s390x Satheesh Rajendran <sathnaga(a)linux.vnet.ibm.com> perf bench numa: Fixup discontiguous/sparse numa nodes Jiri Olsa <jolsa(a)kernel.org> perf top: Fix window dimensions change handling Jiri Olsa <jolsa(a)kernel.org> perf: Fix header.size for namespace events Thomas Richter <tmricht(a)linux.vnet.ibm.com> perf test shell: Fix check open filename arg using 'perf trace' on s390x Ravi Bangoria <ravi.bangoria(a)linux.vnet.ibm.com> perf annotate: Do not truncate instruction names at 6 chars Namhyung Kim <namhyung(a)kernel.org> perf help: Fix a bug during strstart() conversion Andi Kleen <ak(a)linux.intel.com> perf record: Fix -c/-F options for cpu event aliases Peter Ujfalusi <peter.ujfalusi(a)ti.com> ARM: dts: am437x-cm-t43: Correct the dmas property of spi0 Peter Ujfalusi <peter.ujfalusi(a)ti.com> ARM: dts: am4372: Correct the interrupts_properties of McASP Adam Ford <aford173(a)gmail.com> ARM: dts: logicpd-somlv: Fix wl127x pinmux Adam Ford <aford173(a)gmail.com> ARM: dts: logicpd-som-lv: Fix gpmc addresses for NAND and enet Tony Lindgren <tony(a)atomide.com> ARM: dts: Fix omap4 hang with GPS connected to USB by using wakeupgen Keerthy <j-keerthy(a)ti.com> ARM: AM33xx: PRM: Remove am33xx_pwrdm_read_prev_pwrst function Tony Lindgren <tony(a)atomide.com> ARM: OMAP2+: Fix SRAM virt to phys translation for save_secure_ram_context Johan Hovold <johan(a)kernel.org> serdev: fix receive_buf return value when no callback Randy Dunlap <rdunlap(a)infradead.org> usb: build drivers/usb/common/ when USB_SUPPORT is set Shuah Khan <shuah(a)kernel.org> usbip: keep usbip_device sockfd state in sync with tcp_socket Alexandru Ardelean <alexandru.ardelean(a)analog.com> staging: iio: ad5933: switch buffer mode to software Alexandru Ardelean <alexandru.ardelean(a)analog.com> staging: iio: adc: ad7192: fix external frequency setting Arnd Bergmann <arnd(a)arndb.de> staging: fsl-mc: fix build testing on x86 Todd Kjos <tkjos(a)android.com> binder: replace "%p" with "%pK" Eric Biggers <ebiggers(a)google.com> binder: check for binder_thread allocation failure in binder_poll() Ben Hutchings <ben(a)decadent.org.uk> staging: android: ashmem: Fix a race condition in pin ioctls Martijn Coenen <maco(a)android.com> ANDROID: binder: synchronize_rcu() when using POLLFREE. Todd Kjos <tkjos(a)android.com> ANDROID: binder: remove WARN() for redundant txn error Paolo Abeni <pabeni(a)redhat.com> dn_getsockoptdecnet: move nf_{get/set}sockopt outside sock lock Arnd Bergmann <arnd(a)arndb.de> arm64: dts: add #cooling-cells to CPU nodes Arnd Bergmann <arnd(a)arndb.de> ARM: 8743/1: bL_switcher: add MODULE_LICENSE tag Arnd Bergmann <arnd(a)arndb.de> video: fbdev/mmp: add MODULE_LICENSE Arnd Bergmann <arnd(a)arndb.de> ASoC: ux500: add MODULE_LICENSE tag Eric Dumazet <edumazet(a)google.com> net_sched: gen_estimator: fix lockdep splat Willem de Bruijn <willemb(a)google.com> net: avoid skb_warn_bad_offload on IS_ERR Sowmini Varadhan <sowmini.varadhan(a)oracle.com> rds: tcp: atomically purge entries from rds_tcp_conn_list during netns delete Sowmini Varadhan <sowmini.varadhan(a)oracle.com> rds: tcp: correctly sequence cleanup on netns deletion. Cong Wang <xiyou.wangcong(a)gmail.com> netfilter: xt_RATEEST: acquire xt_rateest_mutex for hash insert Cong Wang <xiyou.wangcong(a)gmail.com> netfilter: xt_cgroup: initialize info->priv in cgroup_mt_check_v1() Paolo Abeni <pabeni(a)redhat.com> netfilter: on sockopt() acquire sock lock only in the required scope Dmitry Vyukov <dvyukov(a)google.com> netfilter: ipt_CLUSTERIP: fix out-of-bounds accesses in clusterip_tg_check() Eric Dumazet <edumazet(a)google.com> netfilter: x_tables: avoid out-of-bounds reads in xt_request_find_{match|target} Dmitry Vyukov <dvyukov(a)google.com> netfilter: x_tables: fix int overflow in xt_alloc_table_info() Dmitry Vyukov <dvyukov(a)google.com> kcov: detect double association with a single task Wanpeng Li <wanpeng.li(a)hotmail.com> KVM: x86: fix escape of guest dr6 to the host Douglas Gilbert <dgilbert(a)interlog.com> blk_rq_map_user_iov: fix error override Laura Abbott <labbott(a)redhat.com> staging: android: ion: Switch from WARN to pr_warn Laura Abbott <labbott(a)redhat.com> staging: android: ion: Add __GFP_NOWARN for system contig heap Eric Biggers <ebiggers(a)google.com> crypto: x86/twofish-3way - Fix %rbp usage Andrey Konovalov <andreyknvl(a)google.com> media: pvrusb2: properly check endpoint types Paul Moore <paul(a)paul-moore.com> selinux: skip bounded transition processing if the policy isn't loaded Paul Moore <paul(a)paul-moore.com> selinux: ensure the context is NUL terminated in security_context_to_sid_core() Jason Wang <jasowang(a)redhat.com> ptr_ring: try vmalloc() when kmalloc() fails Jason Wang <jasowang(a)redhat.com> ptr_ring: fail early if queue occupies more than KMALLOC_MAX_SIZE Takashi Iwai <tiwai(a)suse.de> ALSA: bcd2000: Add a sanity check for invalid EPs Takashi Iwai <tiwai(a)suse.de> ALSA: caiaq: Add a sanity check for invalid EPs Takashi Iwai <tiwai(a)suse.de> ALSA: line6: Add a sanity check for invalid EPs Chris Wilson <chris(a)chris-wilson.co.uk> drm: Require __GFP_NOFAIL for the legacy drm_modeset_lock_all Jan Kara <jack(a)suse.cz> dnotify: Handle errors from fsnotify_add_mark_locked() in fcntl_dirnotify() Jens Axboe <axboe(a)kernel.dk> blktrace: fix unlocked registration of tracepoints Xin Long <lucien.xin(a)gmail.com> sctp: set frag_point in sctp_setsockopt_maxseg correctly Cong Wang <xiyou.wangcong(a)gmail.com> xfrm: check id proto in validate_tmpl() Steffen Klassert <steffen.klassert(a)secunet.com> xfrm: Fix stack-out-of-bounds read on socket policy lookup. Leon Romanovsky <leonro(a)mellanox.com> RDMA/netlink: Fix general protection fault Lan Tianyu <tianyu.lan(a)intel.com> KVM/x86: Check input paging mode when cs.l is set Tetsuo Handa <penguin-kernel(a)I-love.SAKURA.ne.jp> mm,vmscan: Make unregister_shrinker() no-op if register_shrinker() failed. Florian Westphal <fw(a)strlen.de> xfrm: skip policies marked as dead while rehashing Sabrina Dubroca <sd(a)queasysnail.net> xfrm: fix rcu usage in xfrm_get_type_offload Florian Westphal <fw(a)strlen.de> xfrm: don't call xfrm_policy_cache_flush while holding spinlock Steffen Klassert <steffen.klassert(a)secunet.com> esp: Fix GRO when the headers not fully in the linear part of the skb. Johannes Berg <johannes.berg(a)intel.com> mac80211_hwsim: validate number of different channels Johannes Berg <johannes.berg(a)intel.com> cfg80211: check dev_set_name() return value Daniel Borkmann <daniel(a)iogearbox.net> bpf: mark dst unknown on inconsistent {s, u}bounds adjustments Tom Herbert <tom(a)quantonium.net> kcm: Only allow TCP sockets to be attached to a KCM mux Tom Herbert <tom(a)quantonium.net> kcm: Check if sk_user_data already set in kcm_attach Jason Wang <jasowang(a)redhat.com> vhost: use mutex_lock_nested() in vhost_dev_lock_vqs() Takashi Iwai <tiwai(a)suse.de> usb: core: Add a helper function to check the validity of EP type in URB ------------- Diffstat: Makefile | 4 +- arch/arm/boot/dts/am4372.dtsi | 6 +- arch/arm/boot/dts/am437x-cm-t43.dts | 4 +- arch/arm/boot/dts/logicpd-som-lv-37xx-devkit.dts | 3 +- arch/arm/boot/dts/logicpd-som-lv.dtsi | 16 ++- arch/arm/boot/dts/omap4.dtsi | 4 +- arch/arm/common/bL_switcher_dummy_if.c | 4 + arch/arm/mach-omap2/omap-secure.c | 19 ++++ arch/arm/mach-omap2/omap-secure.h | 4 + arch/arm/mach-omap2/pm.h | 4 - arch/arm/mach-omap2/pm34xx.c | 13 +-- arch/arm/mach-omap2/prm33xx.c | 12 -- arch/arm/mach-omap2/sleep34xx.S | 26 +---- arch/arm64/boot/dts/mediatek/mt8173.dtsi | 2 + arch/m68k/kernel/vmlinux-nommu.lds | 2 + arch/m68k/kernel/vmlinux-std.lds | 2 + arch/m68k/kernel/vmlinux-sun3.lds | 2 + arch/powerpc/perf/core-book3s.c | 4 +- arch/powerpc/perf/imc-pmu.c | 13 +++ arch/s390/include/uapi/asm/virtio-ccw.h | 2 +- arch/x86/crypto/twofish-x86_64-asm_64-3way.S | 112 ++++++++++--------- arch/x86/kvm/vmx.c | 1 - arch/x86/kvm/x86.c | 32 ++++++ arch/x86/mm/ioremap.c | 4 +- arch/x86/mm/kmmio.c | 12 +- block/blk-map.c | 4 +- drivers/Makefile | 1 + drivers/android/binder.c | 29 ++++- drivers/base/power/runtime.c | 3 +- drivers/crypto/s5p-sss.c | 12 +- drivers/crypto/talitos.c | 5 + drivers/dma/at_hdmac.c | 4 +- drivers/dma/dma-jz4740.c | 4 +- drivers/dma/ioat/init.c | 2 +- drivers/gpio/gpio-74x164.c | 4 +- drivers/gpio/gpio-davinci.c | 2 +- drivers/gpu/drm/armada/armada_crtc.c | 25 +++-- drivers/gpu/drm/drm_modeset_lock.c | 2 +- drivers/gpu/drm/i915/intel_drv.h | 2 +- drivers/gpu/drm/vc4/vc4_gem.c | 4 +- drivers/gpu/drm/vc4/vc4_irq.c | 1 + drivers/iio/industrialio-core.c | 4 +- drivers/iio/proximity/sx9500.c | 9 ++ drivers/infiniband/core/cma.c | 3 +- drivers/infiniband/core/device.c | 4 +- drivers/infiniband/core/iwcm.c | 2 +- drivers/infiniband/core/nldev.c | 2 +- drivers/infiniband/hw/hfi1/rc.c | 2 +- drivers/infiniband/hw/i40iw/i40iw_cm.c | 6 +- drivers/infiniband/hw/i40iw/i40iw_ctrl.c | 43 ++++--- drivers/infiniband/hw/i40iw/i40iw_d.h | 6 +- drivers/infiniband/hw/mlx4/qp.c | 26 +++-- drivers/md/raid1.c | 4 + drivers/md/raid10.c | 4 + drivers/md/raid5.c | 2 +- drivers/media/i2c/Kconfig | 1 + drivers/media/i2c/s5k6aa.c | 5 + drivers/media/usb/pvrusb2/pvrusb2-hdw.c | 12 ++ drivers/misc/mei/hw-me-regs.h | 5 + drivers/misc/mei/pci-me.c | 5 + drivers/net/dsa/mv88e6xxx/chip.c | 34 +++--- drivers/net/ethernet/arc/emac_rockchip.c | 7 +- drivers/net/ethernet/broadcom/bnxt/bnxt.c | 3 +- drivers/net/ethernet/freescale/gianfar.c | 11 +- drivers/net/ethernet/marvell/mvpp2.c | 2 +- drivers/net/ethernet/netronome/nfp/nfp_net_repr.c | 15 +-- .../net/ethernet/qualcomm/rmnet/rmnet_handlers.c | 8 +- drivers/net/hippi/rrunner.c | 2 +- drivers/net/ipvlan/ipvlan_core.c | 1 + drivers/net/phy/phylink.c | 1 + drivers/net/phy/sfp.c | 8 +- drivers/net/virtio_net.c | 2 +- .../wireless/broadcom/brcm80211/brcmfmac/sdio.c | 2 +- drivers/net/wireless/mac80211_hwsim.c | 5 + drivers/pci/host/pcie-rcar.c | 8 +- drivers/pinctrl/intel/pinctrl-denverton.c | 2 +- drivers/pinctrl/sunxi/pinctrl-sun50i-a64.c | 2 +- drivers/pinctrl/sunxi/pinctrl-sun9i-a80.c | 6 +- drivers/platform/x86/dell-laptop.c | 17 +++ drivers/s390/block/dasd_eckd.c | 16 ++- drivers/scsi/bfa/bfad_bsg.c | 6 +- drivers/scsi/bfa/bfad_im.c | 6 +- drivers/scsi/bfa/bfad_im.h | 10 ++ drivers/scsi/lpfc/lpfc_mem.c | 2 +- drivers/soc/amlogic/meson-gx-socinfo.c | 4 +- drivers/spi/spi-sun4i.c | 2 +- drivers/staging/android/ashmem.c | 19 ++-- drivers/staging/android/ion/ion-ioctl.c | 4 +- drivers/staging/android/ion/ion_system_heap.c | 2 +- drivers/staging/ccree/ssi_hash.c | 2 +- drivers/staging/fsl-mc/bus/Kconfig | 2 +- drivers/staging/iio/adc/ad7192.c | 27 +++-- drivers/staging/iio/impedance-analyzer/ad5933.c | 4 +- drivers/usb/core/urb.c | 30 ++++- drivers/usb/dwc3/dwc3-of-simple.c | 4 +- drivers/usb/dwc3/gadget.c | 2 +- drivers/usb/usbip/stub_dev.c | 3 + drivers/usb/usbip/vhci_hcd.c | 2 + drivers/vhost/vhost.c | 2 +- drivers/video/fbdev/mmp/core.c | 5 + drivers/xen/Kconfig | 2 +- fs/btrfs/disk-io.c | 12 +- fs/btrfs/inode.c | 2 + fs/btrfs/ioctl.c | 2 +- fs/notify/dnotify/dnotify.c | 7 +- include/linux/ptr_ring.h | 15 ++- include/linux/serdev.h | 2 +- include/linux/usb.h | 2 + include/net/cfg80211.h | 2 + include/net/red.h | 13 ++- include/net/sctp/sctp.h | 3 +- include/trace/events/clk.h | 4 +- include/trace/events/xdp.h | 1 + kernel/bpf/verifier.c | 25 +++-- kernel/events/core.c | 5 +- kernel/kcov.c | 4 +- kernel/locking/lockdep.c | 3 +- kernel/trace/blktrace.c | 32 ++++-- lib/oid_registry.c | 8 +- mm/early_ioremap.c | 2 +- mm/vmalloc.c | 10 +- mm/vmscan.c | 3 + net/core/dev.c | 2 +- net/core/gen_estimator.c | 4 + net/decnet/af_decnet.c | 62 ++++++----- net/ipv4/esp4_offload.c | 3 +- net/ipv4/ip_sockglue.c | 14 +-- net/ipv4/netfilter/ipt_CLUSTERIP.c | 16 ++- net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c | 6 +- net/ipv6/esp6_offload.c | 3 +- net/ipv6/ipv6_sockglue.c | 17 +-- net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c | 18 ++- net/kcm/kcmsock.c | 25 ++++- net/netfilter/x_tables.c | 9 +- net/netfilter/xt_RATEEST.c | 22 +++- net/netfilter/xt_bpf.c | 6 + net/netfilter/xt_cgroup.c | 1 + net/rds/connection.c | 3 +- net/rds/rds.h | 6 +- net/rds/tcp.c | 13 ++- net/rds/tcp.h | 1 + net/sched/sch_choke.c | 3 + net/sched/sch_gred.c | 3 + net/sched/sch_red.c | 2 + net/sched/sch_sfq.c | 3 + net/sctp/outqueue.c | 6 +- net/sctp/socket.c | 29 +++-- net/vmw_vsock/hyperv_transport.c | 2 +- net/wireless/core.c | 8 +- net/wireless/core.h | 2 - net/xfrm/xfrm_input.c | 12 +- net/xfrm/xfrm_policy.c | 15 ++- net/xfrm/xfrm_state.c | 3 +- net/xfrm/xfrm_user.c | 24 ++++ scripts/kernel-doc | 2 +- security/selinux/ss/services.c | 21 ++-- sound/soc/rockchip/rockchip_spdif.c | 18 ++- sound/soc/sh/rcar/ssi.c | 16 ++- sound/soc/ux500/mop500.c | 4 + sound/soc/ux500/ux500_pcm.c | 5 + sound/usb/bcd2000/bcd2000.c | 7 ++ sound/usb/caiaq/device.c | 7 ++ sound/usb/line6/driver.c | 7 ++ tools/perf/bench/numa.c | 56 +++++++++- tools/perf/builtin-help.c | 4 +- tools/perf/builtin-top.c | 15 ++- tools/perf/tests/shell/trace+probe_vfs_getname.sh | 6 +- tools/perf/tests/task-exit.c | 4 + tools/perf/util/annotate.c | 18 +-- tools/perf/util/evsel.c | 12 +- tools/perf/util/evsel.h | 1 + tools/perf/util/parse-events.c | 2 + tools/perf/util/parse-events.h | 3 + tools/perf/util/pmu.c | 5 + tools/testing/selftests/bpf/test_verifier.c | 123 ++++++++++++++++++++- virt/kvm/arm/arm.c | 2 +- virt/kvm/arm/vgic/vgic.c | 5 +- 177 files changed, 1201 insertions(+), 490 deletions(-)

7 years, 10 months

[PATCH 3.18 00/58] 3.18.96-stable review

by Greg Kroah-Hartman

This is the start of the stable review cycle for the 3.18.96 release. There are 58 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 Sun Feb 25 17:01:41 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/v3.x/stable-review/patch-3.18.96-rc… or in the git tree and branch at: git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-3.18.y and the diffstat can be found below. thanks, greg k-h ------------- Pseudo-Shortlog of commits: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Linux 3.18.96-rc1 Kamil Konieczny <k.konieczny(a)partner.samsung.com> crypto: s5p-sss - Fix kernel Oops in AES-ECB mode Wanpeng Li <wanpeng.li(a)hotmail.com> KVM: async_pf: Fix #DF due to inject "Page not Present" and "Page Ready" exceptions simultaneously Jia-Ju Bai <baijiaju1990(a)163.com> hippi: Fix a Fix a possible sleep-in-atomic bug in rr_close Jan Beulich <JBeulich(a)suse.com> xen: XEN_ACPI_PROCESSOR is Dom0-only Karol Herbst <kherbst(a)redhat.com> x86/mm/kmmio: Fix mmiotrace for page unaligned addresses Dave Young <dyoung(a)redhat.com> mm/early_ioremap: Fix boot hang with earlyprintk=efi,keep Tobias Jordan <Tobias.Jordan(a)elektrobit.com> dmaengine: jz4740: disable/unprepare clk if probe fails Steffen Klassert <steffen.klassert(a)secunet.com> xfrm: Fix stack-out-of-bounds with misconfigured transport mode policies. Takuo Koguchi <takuo.koguchi(a)gmail.com> spi: sun4i: disable clocks in the remove function Eric Biggers <ebiggers3(a)gmail.com> 509: fix printing uninitialized stack memory when OID is empty Nikolay Borisov <nborisov(a)suse.com> btrfs: Fix possible off-by-one in btrfs_search_path_in_tree Nogah Frankel <nogahf(a)mellanox.com> net_sched: red: Avoid illegal values Nogah Frankel <nogahf(a)mellanox.com> net_sched: red: Avoid devision by zero Zumeng Chen <zumeng.chen(a)gmail.com> gianfar: fix a flooded alignment reports because of padding issue. Stefan Haberland <sth(a)linux.vnet.ibm.com> s390/dasd: prevent prefix I/O error Ravi Bangoria <ravi.bangoria(a)linux.vnet.ibm.com> powerpc/perf: Fix oops when grouping different pmu events Greg Ungerer <gerg(a)linux-m68k.org> m68k: add missing SOFTIRQENTRY_TEXT linker section Will Deacon <will.deacon(a)arm.com> scripts/kernel-doc: Don't fail with status != 0 if error encountered with -none Mauro Carvalho Chehab <mchehab(a)s-opensource.com> media: s5k6aa: describe some function parameters Satheesh Rajendran <sathnaga(a)linux.vnet.ibm.com> perf bench numa: Fixup discontiguous/sparse numa nodes Jiri Olsa <jolsa(a)kernel.org> perf top: Fix window dimensions change handling Peter Ujfalusi <peter.ujfalusi(a)ti.com> ARM: dts: am4372: Correct the interrupts_properties of McASP Keerthy <j-keerthy(a)ti.com> ARM: AM33xx: PRM: Remove am33xx_pwrdm_read_prev_pwrst function Randy Dunlap <rdunlap(a)infradead.org> usb: build drivers/usb/common/ when USB_SUPPORT is set Shuah Khan <shuahkh(a)osg.samsung.com> usbip: keep usbip_device sockfd state in sync with tcp_socket Paolo Abeni <pabeni(a)redhat.com> dn_getsockoptdecnet: move nf_{get/set}sockopt outside sock lock Arnd Bergmann <arnd(a)arndb.de> video: fbdev/mmp: add MODULE_LICENSE Arnd Bergmann <arnd(a)arndb.de> ASoC: ux500: add MODULE_LICENSE tag Paul Moore <paul(a)paul-moore.com> selinux: ensure the context is NUL terminated in security_context_to_sid_core() David Howells <dhowells(a)redhat.com> Provide a function to create a NUL-terminated string from unterminated data Willem de Bruijn <willemb(a)google.com> net: avoid skb_warn_bad_offload on IS_ERR Cong Wang <xiyou.wangcong(a)gmail.com> netfilter: xt_RATEEST: acquire xt_rateest_mutex for hash insert Paolo Abeni <pabeni(a)redhat.com> netfilter: on sockopt() acquire sock lock only in the required scope Dmitry Vyukov <dvyukov(a)google.com> netfilter: ipt_CLUSTERIP: fix out-of-bounds accesses in clusterip_tg_check() Eric Dumazet <edumazet(a)google.com> netfilter: x_tables: avoid out-of-bounds reads in xt_request_find_{match|target} Dmitry Vyukov <dvyukov(a)google.com> netfilter: x_tables: fix int overflow in xt_alloc_table_info() Laura Abbott <labbott(a)redhat.com> staging: android: ion: Add __GFP_NOWARN for system contig heap Eric Biggers <ebiggers(a)google.com> crypto: x86/twofish-3way - Fix %rbp usage Paul Moore <paul(a)paul-moore.com> selinux: skip bounded transition processing if the policy isn't loaded Cong Wang <xiyou.wangcong(a)gmail.com> xfrm: check id proto in validate_tmpl() Tetsuo Handa <penguin-kernel(a)I-love.SAKURA.ne.jp> mm,vmscan: Make unregister_shrinker() no-op if register_shrinker() failed. Arnd Bergmann <arnd(a)arndb.de> media: r820t: fix r820t_write_reg for KASAN Arnd Bergmann <arnd(a)arndb.de> ARM: dts: s5pv210: add interrupt-parent for ohci Takashi Iwai <tiwai(a)suse.de> ALSA: seq: Fix racy pool initializations Liu Bo <bo.li.liu(a)oracle.com> Btrfs: fix crash due to not cleaning up tree log block's dirty bits Liu Bo <bo.li.liu(a)oracle.com> Btrfs: fix deadlock in run_delalloc_nocow Nicolas Pitre <nicolas.pitre(a)linaro.org> console/dummy: leave .con_font_get set to NULL Johan Hovold <johan(a)kernel.org> video: fbdev: atmel_lcdfb: fix display-timings lookup Ernesto A. Fernández <ernesto.mnd.fernandez(a)gmail.com> ext4: correct documentation for grpid mount option Zhouyi Zhou <zhouzhouyi(a)gmail.com> ext4: save error to disk in __ext4_grp_locked_error() Julia Lawall <Julia.Lawall(a)lip6.fr> drm/radeon: adjust tested variable Takashi Iwai <tiwai(a)suse.de> ALSA: seq: Fix regression by incorrect ioctl_mutex usages Viresh Kumar <viresh.kumar(a)linaro.org> arm: spear13xx: Fix spics gpio controller's warning Viresh Kumar <viresh.kumar(a)linaro.org> arm: spear13xx: Fix dmas cells Viresh Kumar <viresh.kumar(a)linaro.org> arm: spear600: Add missing interrupt-parent of rtc Eugene Syromiatnikov <esyr(a)redhat.com> s390: fix handling of -1 in set{,fs}[gu]id16 syscalls Bjorn Andersson <bjorn.andersson(a)linaro.org> PM / devfreq: Propagate error from devfreq_add_device() Jack Morgenstein <jackm(a)dev.mellanox.co.il> IB/mlx4: Fix incorrectly releasing steerable UD QPs when have only ETH ports ------------- Diffstat: Documentation/devicetree/bindings/dma/snps-dma.txt | 2 +- Documentation/filesystems/ext4.txt | 2 +- Makefile | 4 +- arch/arm/boot/dts/am4372.dtsi | 6 +- arch/arm/boot/dts/s5pv210.dtsi | 1 + arch/arm/boot/dts/spear1310-evb.dts | 2 +- arch/arm/boot/dts/spear1340.dtsi | 4 +- arch/arm/boot/dts/spear13xx.dtsi | 6 +- arch/arm/boot/dts/spear600.dtsi | 1 + arch/arm/mach-omap2/prm33xx.c | 12 --- arch/m68k/kernel/vmlinux-nommu.lds | 2 + arch/m68k/kernel/vmlinux-std.lds | 2 + arch/m68k/kernel/vmlinux-sun3.lds | 2 + arch/powerpc/perf/core-book3s.c | 4 +- arch/s390/kernel/compat_linux.c | 8 +- arch/x86/crypto/twofish-x86_64-asm_64-3way.S | 112 +++++++++++---------- arch/x86/kvm/x86.c | 34 +++++-- arch/x86/mm/ioremap.c | 4 +- arch/x86/mm/kmmio.c | 12 ++- drivers/Makefile | 1 + drivers/crypto/s5p-sss.c | 13 ++- drivers/devfreq/devfreq.c | 2 +- drivers/dma/dma-jz4740.c | 4 +- drivers/gpu/drm/radeon/radeon_uvd.c | 2 +- drivers/infiniband/hw/mlx4/main.c | 13 +-- drivers/media/i2c/s5k6aa.c | 5 + drivers/media/tuners/r820t.c | 13 ++- drivers/net/ethernet/freescale/gianfar.c | 6 +- drivers/net/ethernet/mellanox/mlx4/qp.c | 3 + drivers/net/hippi/rrunner.c | 2 +- drivers/s390/block/dasd_eckd.c | 16 +-- drivers/spi/spi-sun4i.c | 2 +- drivers/staging/android/ion/ion_system_heap.c | 2 +- drivers/usb/usbip/stub_dev.c | 3 + drivers/usb/usbip/vhci_hcd.c | 2 + drivers/video/console/dummycon.c | 1 - drivers/video/fbdev/atmel_lcdfb.c | 8 +- drivers/video/fbdev/mmp/core.c | 5 + drivers/xen/Kconfig | 2 +- fs/btrfs/inode.c | 5 +- fs/btrfs/ioctl.c | 2 +- fs/btrfs/tree-log.c | 9 ++ fs/ext4/super.c | 1 + include/linux/string.h | 1 + include/net/red.h | 13 ++- lib/oid_registry.c | 8 +- mm/early_ioremap.c | 2 +- mm/util.c | 24 +++++ mm/vmscan.c | 3 + net/core/dev.c | 2 +- net/decnet/af_decnet.c | 62 ++++++------ net/ipv4/ip_sockglue.c | 14 +-- net/ipv4/netfilter/ipt_CLUSTERIP.c | 16 ++- net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c | 6 +- net/ipv6/ipv6_sockglue.c | 17 +--- net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c | 18 ++-- net/netfilter/x_tables.c | 10 +- net/netfilter/xt_RATEEST.c | 22 +++- net/sched/sch_choke.c | 3 + net/sched/sch_gred.c | 3 + net/sched/sch_red.c | 2 + net/sched/sch_sfq.c | 3 + net/xfrm/xfrm_user.c | 24 +++++ scripts/kernel-doc | 2 +- security/selinux/ss/services.c | 21 ++-- sound/core/seq/seq_clientmgr.c | 23 +++-- sound/soc/ux500/mop500.c | 4 + sound/soc/ux500/ux500_pcm.c | 5 + tools/perf/bench/numa.c | 56 ++++++++++- tools/perf/builtin-top.c | 15 ++- 70 files changed, 485 insertions(+), 236 deletions(-)

7 years, 10 months

Patch "net: dst_cache_per_cpu_dst_set() can be static" has been added to the 4.4-stable tree

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled net: dst_cache_per_cpu_dst_set() can be static to the 4.4-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: net-dst_cache_per_cpu_dst_set-can-be-static.patch and it can be found in the queue-4.4 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. >From b73f96fcb49ec90c2f837719893e7b25fcdf08d8 Mon Sep 17 00:00:00 2001 From: Wu Fengguang <fengguang.wu(a)intel.com> Date: Fri, 18 Mar 2016 23:27:28 +0800 Subject: net: dst_cache_per_cpu_dst_set() can be static From: Wu Fengguang <fengguang.wu(a)intel.com> commit b73f96fcb49ec90c2f837719893e7b25fcdf08d8 upstream. Signed-off-by: Fengguang Wu <fengguang.wu(a)intel.com> Signed-off-by: David S. Miller <davem(a)davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> --- net/core/dst_cache.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) --- a/net/core/dst_cache.c +++ b/net/core/dst_cache.c @@ -28,8 +28,8 @@ struct dst_cache_pcpu { }; }; -void dst_cache_per_cpu_dst_set(struct dst_cache_pcpu *dst_cache, - struct dst_entry *dst, u32 cookie) +static void dst_cache_per_cpu_dst_set(struct dst_cache_pcpu *dst_cache, + struct dst_entry *dst, u32 cookie) { dst_release(dst_cache->dst); if (dst) @@ -39,8 +39,8 @@ void dst_cache_per_cpu_dst_set(struct ds dst_cache->dst = dst; } -struct dst_entry *dst_cache_per_cpu_get(struct dst_cache *dst_cache, - struct dst_cache_pcpu *idst) +static struct dst_entry *dst_cache_per_cpu_get(struct dst_cache *dst_cache, + struct dst_cache_pcpu *idst) { struct dst_entry *dst; Patches currently in stable-queue which might be from fengguang.wu(a)intel.com are queue-4.4/net-dst_cache_per_cpu_dst_set-can-be-static.patch queue-4.4/video-use-bool-instead-int-pointer-for-get_opt_bool-argument.patch queue-4.4/staging-wilc1000-fix-kbuild-test-robot-error.patch queue-4.4/serial-8250_mid-fix-broken-dma-dependency.patch

7 years, 10 months

[PATCH 4.9 00/77] 4.9.83-stable review

by Greg Kroah-Hartman

This is the start of the stable review cycle for the 4.9.83 release. There are 77 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 Fri Feb 23 12:44:14 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-4.9.83-rc1… or in the git tree and branch at: git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-4.9.y and the diffstat can be found below. thanks, greg k-h ------------- Pseudo-Shortlog of commits: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Linux 4.9.83-rc1 yinbo.zhu <yinbo.zhu(a)nxp.com> mmc: sdhci-of-esdhc: fix the mmc error after sleep on ls1046ardb yinbo.zhu <yinbo.zhu(a)nxp.com> mmc: sdhci-of-esdhc: fix eMMC couldn't work after kexec Arnd Bergmann <arnd(a)arndb.de> media: r820t: fix r820t_write_reg for KASAN Linus Walleij <linus.walleij(a)linaro.org> ARM: dts: Delete bogus reference to the charlcd Matthias Brugger <matthias.bgg(a)gmail.com> arm: dts: mt2701: Add reset-cells Arnd Bergmann <arnd(a)arndb.de> ARM: dts: s5pv210: add interrupt-parent for ohci Bjorn Andersson <bjorn.andersson(a)linaro.org> arm64: dts: msm8916: Add missing #phy-cells Arnd Bergmann <arnd(a)arndb.de> ARM: pxa/tosa-bt: add MODULE_LICENSE tag Arnd Bergmann <arnd(a)arndb.de> ARM: dts: exynos: fix RTC interrupt for exynos5410 Linus Torvalds <torvalds(a)linux-foundation.org> vfs: don't do RCU lookup of empty pathnames Arnd Bergmann <arnd(a)arndb.de> x86: fix build warnign with 32-bit PAE Gustavo A. R. Silva <garsilva(a)embeddedor.com> x86/cpu: Change type of x86_cache_size variable to unsigned int Dan Carpenter <dan.carpenter(a)oracle.com> x86/spectre: Fix an error message Jia Zhang <qianyue.zj(a)alibaba-inc.com> x86/cpu: Rename cpu_data.x86_mask to cpu_data.x86_stepping Rui Wang <rui.y.wang(a)intel.com> selftests/x86/mpx: Fix incorrect bounds with old _sigfault Peter Zijlstra <peterz(a)infradead.org> x86/speculation: Add <asm/msr-index.h> dependency Will Deacon <will.deacon(a)arm.com> nospec: Move array_index_nospec() parameter checking into separate macro Dan Williams <dan.j.williams(a)intel.com> x86/speculation: Fix up array_index_nospec_mask() asm constraint Dominik Brodowski <linux(a)dominikbrodowski.net> selftests/x86: Do not rely on "int $0x80" in single_step_syscall.c Dominik Brodowski <linux(a)dominikbrodowski.net> selftests/x86: Do not rely on "int $0x80" in test_mremap_vdso.c Ingo Molnar <mingo(a)kernel.org> selftests/x86/pkeys: Remove unused functions Ingo Molnar <mingo(a)kernel.org> x86/speculation: Clean up various Spectre related details KarimAllah Ahmed <karahmed(a)amazon.de> X86/nVMX: Properly set spec_ctrl and pred_cmd before merging MSRs David Woodhouse <dwmw(a)amazon.co.uk> KVM/x86: Reduce retpoline performance impact in slot_handle_level_range(), by always inlining iterator helper methods David Woodhouse <dwmw(a)amazon.co.uk> x86/speculation: Correct Speculation Control microcode blacklist again David Woodhouse <dwmw(a)amazon.co.uk> x86/speculation: Update Speculation Control microcode blacklist Geert Uytterhoeven <geert(a)linux-m68k.org> compiler-gcc.h: Introduce __optimize function attribute Dan Williams <dan.j.williams(a)intel.com> x86/entry/64/compat: Clear registers for compat syscalls, to reduce speculation attack surface Viresh Kumar <viresh.kumar(a)linaro.org> arm: spear13xx: Fix spics gpio controller's warning Viresh Kumar <viresh.kumar(a)linaro.org> arm: spear13xx: Fix dmas cells Viresh Kumar <viresh.kumar(a)linaro.org> arm: spear600: Add missing interrupt-parent of rtc Arnd Bergmann <arnd(a)arndb.de> ARM: dts: nomadik: add interrupt-parent for clcd Patrice Chotard <patrice.chotard(a)st.com> ARM: dts: STi: Add gpio polarity for "hdmi,hpd-gpio" property Arnd Bergmann <arnd(a)arndb.de> ARM: lpc3250: fix uda1380 gpio numbers Bjorn Andersson <bjorn.andersson(a)linaro.org> arm64: dts: msm8916: Correct ipc references for smsm Eugene Syromiatnikov <esyr(a)redhat.com> s390: fix handling of -1 in set{,fs}[gu]id16 syscalls Gang He <ghe(a)suse.com> ocfs2: try a blocking lock before return AOP_TRUNCATED_PAGE Bjorn Andersson <bjorn.andersson(a)linaro.org> PM / devfreq: Propagate error from devfreq_add_device() Shilpasri G Bhat <shilpa.bhat(a)linux.vnet.ibm.com> cpufreq: powernv: Dont assume distinct pstate values for nominal and pmin Bart Van Assche <bart.vanassche(a)wdc.com> RDMA/rxe: Fix a race condition related to the QP error state Arnd Bergmann <arnd(a)arndb.de> kselftest: fix OOM in memory compaction test Jack Morgenstein <jackm(a)dev.mellanox.co.il> IB/mlx4: Fix incorrectly releasing steerable UD QPs when have only ETH ports Mike Marciniszyn <mike.marciniszyn(a)intel.com> IB/qib: Fix comparison error with qperf compare/swap test Nicholas Piggin <npiggin(a)gmail.com> powerpc: fix build errors in stable tree NeilBrown <neilb(a)suse.com> dm: correctly handle chained bios in dec_pending() James Hogan <jhogan(a)kernel.org> usb: Move USB_UHCI_BIG_ENDIAN_* out of USB_SUPPORT Mikulas Patocka <mpatocka(a)redhat.com> mvpp2: fix multicast address filter Takashi Iwai <tiwai(a)suse.de> ALSA: seq: Fix racy pool initializations Lassi Ylikojola <lassi.ylikojola(a)gmail.com> ALSA: usb-audio: add implicit fb quirk for Behringer UFX1204 Jan-Marek Glogowski <glogow(a)fbihome.de> ALSA: hda/realtek: PCI quirk for Fujitsu U7x7 Kailang Yang <kailang(a)realtek.com> ALSA: hda/realtek - Enable Thinkpad Dock device for ALC298 platform Kirill Marinushkin <k.marinushkin(a)gmail.com> ALSA: usb-audio: Fix UAC2 get_ctl request with a RANGE attribute Hui Wang <hui.wang(a)canonical.com> ALSA: hda - Fix headset mic detection problem for two Dell machines Stefan Agner <stefan(a)agner.ch> mtd: nand: vf610: set correct ooblayout Greg Kurz <groug(a)kaod.org> 9p/trans_virtio: discard zero-length reply Liu Bo <bo.li.liu(a)oracle.com> Btrfs: fix unexpected -EEXIST when creating new inode Liu Bo <bo.li.liu(a)oracle.com> Btrfs: fix btrfs_evict_inode to handle abnormal inodes correctly Liu Bo <bo.li.liu(a)oracle.com> Btrfs: fix extent state leak from tree log Liu Bo <bo.li.liu(a)oracle.com> Btrfs: fix crash due to not cleaning up tree log block's dirty bits Liu Bo <bo.li.liu(a)oracle.com> Btrfs: fix deadlock in run_delalloc_nocow David Disseldorp <ddiss(a)suse.de> target/iscsi: avoid NULL dereference in CHAP auth error path Larry Finger <Larry.Finger(a)lwfinger.net> rtlwifi: rtl8821ae: Fix connection lost problem correctly Nicolas Pitre <nicolas.pitre(a)linaro.org> console/dummy: leave .con_font_get set to NULL Johan Hovold <johan(a)kernel.org> video: fbdev: atmel_lcdfb: fix display-timings lookup Johan Hovold <johan(a)kernel.org> PCI: keystone: Fix interrupt-controller-node lookup Corentin Labbe <clabbe.montjoie(a)gmail.com> MIPS: Fix typo BIG_ENDIAN to CPU_BIG_ENDIAN Jan H. Schönherr <jschoenh(a)amazon.de> mm: Fix memory size alignment in devm_memremap_pages_release() Arnd Bergmann <arnd(a)arndb.de> mm: hide a #warning for COMPILE_TEST Ernesto A. Fernández <ernesto.mnd.fernandez(a)gmail.com> ext4: correct documentation for grpid mount option Zhouyi Zhou <zhouzhouyi(a)gmail.com> ext4: save error to disk in __ext4_grp_locked_error() Harshad Shirwadkar <harshads(a)google.com> ext4: fix a race in the ext4 shutdown path Tobin C. Harding <me(a)tobin.cc> jbd2: fix sphinx kernel-doc build warnings Alexander Potapenko <glider(a)google.com> mbcache: initialize entry->e_referenced in mb_cache_entry_create() Stewart Smith <stewart(a)linux.vnet.ibm.com> rtc-opal: Fix handling of firmware error codes, prevent busy loops Julia Lawall <Julia.Lawall(a)lip6.fr> drm/radeon: adjust tested variable Alex Deucher <alexander.deucher(a)amd.com> drm/radeon: Add dpm quirk for Jet PRO (v2) Steffen Weber <steffen.weber(a)gmail.com> scsi: smartpqi: allow static build ("built-in") ------------- Diffstat: Documentation/devicetree/bindings/dma/snps-dma.txt | 2 +- Documentation/filesystems/ext4.txt | 2 +- Makefile | 4 +- arch/arm/boot/dts/arm-realview-eb-mp.dtsi | 5 - arch/arm/boot/dts/exynos5410.dtsi | 1 - arch/arm/boot/dts/lpc3250-ea3250.dts | 4 +- arch/arm/boot/dts/lpc3250-phy3250.dts | 4 +- arch/arm/boot/dts/mt2701.dtsi | 2 + arch/arm/boot/dts/s5pv210.dtsi | 1 + arch/arm/boot/dts/spear1310-evb.dts | 2 +- arch/arm/boot/dts/spear1340.dtsi | 4 +- arch/arm/boot/dts/spear13xx.dtsi | 6 +- arch/arm/boot/dts/spear600.dtsi | 1 + arch/arm/boot/dts/ste-nomadik-stn8815.dtsi | 1 + arch/arm/boot/dts/stih407.dtsi | 3 +- arch/arm/boot/dts/stih410.dtsi | 3 +- arch/arm/mach-pxa/tosa-bt.c | 4 + arch/arm64/boot/dts/qcom/msm8916.dtsi | 5 +- arch/mips/Kconfig | 12 +- arch/powerpc/kernel/entry_64.S | 5 + arch/s390/kernel/compat_linux.c | 8 +- arch/x86/entry/entry_64_compat.S | 30 ++ arch/x86/events/intel/core.c | 2 +- arch/x86/events/intel/lbr.c | 2 +- arch/x86/events/intel/p6.c | 2 +- arch/x86/include/asm/acpi.h | 2 +- arch/x86/include/asm/barrier.h | 2 +- arch/x86/include/asm/nospec-branch.h | 1 + arch/x86/include/asm/processor.h | 4 +- arch/x86/kernel/amd_nb.c | 2 +- arch/x86/kernel/asm-offsets_32.c | 2 +- arch/x86/kernel/cpu/amd.c | 26 +- arch/x86/kernel/cpu/bugs.c | 28 +- arch/x86/kernel/cpu/centaur.c | 4 +- arch/x86/kernel/cpu/common.c | 10 +- arch/x86/kernel/cpu/cyrix.c | 2 +- arch/x86/kernel/cpu/intel.c | 31 +- arch/x86/kernel/cpu/microcode/intel.c | 6 +- arch/x86/kernel/cpu/mtrr/generic.c | 2 +- arch/x86/kernel/cpu/mtrr/main.c | 4 +- arch/x86/kernel/cpu/proc.c | 8 +- arch/x86/kernel/head_32.S | 4 +- arch/x86/kernel/mpparse.c | 2 +- arch/x86/kvm/mmu.c | 10 +- arch/x86/kvm/vmx.c | 4 +- arch/x86/lib/cpu.c | 2 +- drivers/char/hw_random/via-rng.c | 2 +- drivers/cpufreq/acpi-cpufreq.c | 2 +- drivers/cpufreq/longhaul.c | 6 +- drivers/cpufreq/p4-clockmod.c | 2 +- drivers/cpufreq/powernow-k7.c | 2 +- drivers/cpufreq/powernv-cpufreq.c | 4 +- drivers/cpufreq/speedstep-centrino.c | 4 +- drivers/cpufreq/speedstep-lib.c | 6 +- drivers/crypto/padlock-aes.c | 2 +- drivers/devfreq/devfreq.c | 2 +- drivers/edac/amd64_edac.c | 2 +- drivers/edac/mce_amd.c | 2 +- drivers/gpu/drm/radeon/radeon_uvd.c | 2 +- drivers/gpu/drm/radeon/si_dpm.c | 5 + drivers/hwmon/coretemp.c | 6 +- drivers/hwmon/hwmon-vid.c | 2 +- drivers/hwmon/k10temp.c | 2 +- drivers/hwmon/k8temp.c | 2 +- drivers/infiniband/hw/mlx4/main.c | 13 +- drivers/infiniband/hw/qib/qib_rc.c | 6 +- drivers/infiniband/sw/rxe/rxe_verbs.c | 2 + drivers/md/dm.c | 3 +- drivers/media/tuners/r820t.c | 13 +- drivers/mmc/host/sdhci-of-esdhc.c | 8 + drivers/mtd/nand/vf610_nfc.c | 6 +- drivers/net/ethernet/marvell/mvpp2.c | 11 +- drivers/net/ethernet/mellanox/mlx4/qp.c | 3 + .../net/wireless/realtek/rtlwifi/rtl8821ae/hw.c | 5 +- drivers/net/wireless/realtek/rtlwifi/wifi.h | 1 + drivers/pci/host/pci-keystone.c | 5 +- drivers/rtc/rtc-opal.c | 12 +- drivers/scsi/smartpqi/Makefile | 2 +- drivers/target/iscsi/iscsi_target_auth.c | 3 +- drivers/usb/Kconfig | 8 + drivers/usb/host/Kconfig | 8 - drivers/video/console/dummycon.c | 1 - drivers/video/fbdev/atmel_lcdfb.c | 8 +- drivers/video/fbdev/geode/video_gx.c | 2 +- fs/btrfs/inode.c | 7 +- fs/btrfs/tree-log.c | 32 +- fs/ext4/inode.c | 16 +- fs/ext4/super.c | 1 + fs/jbd2/transaction.c | 5 +- fs/mbcache.c | 1 + fs/namei.c | 3 + fs/ocfs2/dlmglue.c | 9 + include/linux/compiler-gcc.h | 4 + include/linux/compiler.h | 4 + include/linux/jbd2.h | 431 +++++++++++++-------- include/linux/kaiser.h | 2 +- include/linux/nospec.h | 36 +- kernel/memremap.c | 3 +- mm/memory.c | 2 +- net/9p/trans_virtio.c | 3 +- sound/core/seq/seq_clientmgr.c | 8 +- sound/pci/hda/patch_realtek.c | 70 ++++ sound/usb/mixer.c | 18 +- sound/usb/pcm.c | 9 + tools/testing/selftests/vm/compaction_test.c | 2 + tools/testing/selftests/x86/Makefile | 2 + tools/testing/selftests/x86/mpx-mini-test.c | 32 +- tools/testing/selftests/x86/protection_keys.c | 28 -- tools/testing/selftests/x86/single_step_syscall.c | 5 +- tools/testing/selftests/x86/test_mremap_vdso.c | 4 + 110 files changed, 766 insertions(+), 417 deletions(-)

7 years, 10 months

[Linux-stable-mirror] [PATCH v2] KVM: x86: fix backward migration with async_PF

by Radim Krčmář

Guests on new hypersiors might set KVM_ASYNC_PF_DELIVERY_AS_PF_VMEXIT bit when enabling async_PF, but this bit is reserved on old hypervisors, which results in a failure upon migration. To avoid breaking different cases, we are checking for CPUID feature bit before enabling the feature and nothing else. Fixes: 52a5c155cf79 ("KVM: async_pf: Let guest support delivery of async_pf from guest mode") Cc: <stable(a)vger.kernel.org> Signed-off-by: Radim Krčmář <rkrcmar(a)redhat.com> --- v2: * added documentation [Paolo] * retained compatibility recent kernels [Paolo] --- Documentation/virtual/kvm/cpuid.txt | 4 ++++ Documentation/virtual/kvm/msr.txt | 3 ++- arch/x86/include/uapi/asm/kvm_para.h | 1 + arch/x86/kernel/kvm.c | 8 ++++---- arch/x86/kvm/cpuid.c | 3 ++- 5 files changed, 13 insertions(+), 6 deletions(-) diff --git a/Documentation/virtual/kvm/cpuid.txt b/Documentation/virtual/kvm/cpuid.txt index dcab6dc11e3b..87a7506f31c2 100644 --- a/Documentation/virtual/kvm/cpuid.txt +++ b/Documentation/virtual/kvm/cpuid.txt @@ -58,6 +58,10 @@ KVM_FEATURE_PV_TLB_FLUSH || 9 || guest checks this feature bit || || before enabling paravirtualized || || tlb flush. ------------------------------------------------------------------------------ +KVM_FEATURE_ASYNC_PF_VMEXIT || 10 || paravirtualized async PF VM exit + || || can be enabled by setting bit 2 + || || when writing to msr 0x4b564d02 +------------------------------------------------------------------------------ KVM_FEATURE_CLOCKSOURCE_STABLE_BIT || 24 || host will warn if no guest-side || || per-cpu warps are expected in || || kvmclock. diff --git a/Documentation/virtual/kvm/msr.txt b/Documentation/virtual/kvm/msr.txt index 1ebecc115dc6..f3f0d57ced8e 100644 --- a/Documentation/virtual/kvm/msr.txt +++ b/Documentation/virtual/kvm/msr.txt @@ -170,7 +170,8 @@ MSR_KVM_ASYNC_PF_EN: 0x4b564d02 when asynchronous page faults are enabled on the vcpu 0 when disabled. Bit 1 is 1 if asynchronous page faults can be injected when vcpu is in cpl == 0. Bit 2 is 1 if asynchronous page faults - are delivered to L1 as #PF vmexits. + are delivered to L1 as #PF vmexits. Bit 2 can be set only if + KVM_FEATURE_ASYNC_PF_VMEXIT is present in CPUID. First 4 byte of 64 byte memory location will be written to by the hypervisor at the time of asynchronous page fault (APF) diff --git a/arch/x86/include/uapi/asm/kvm_para.h b/arch/x86/include/uapi/asm/kvm_para.h index 7a2ade4aa235..6cfa9c8cb7d6 100644 --- a/arch/x86/include/uapi/asm/kvm_para.h +++ b/arch/x86/include/uapi/asm/kvm_para.h @@ -26,6 +26,7 @@ #define KVM_FEATURE_PV_EOI 6 #define KVM_FEATURE_PV_UNHALT 7 #define KVM_FEATURE_PV_TLB_FLUSH 9 +#define KVM_FEATURE_ASYNC_PF_VMEXIT 10 /* The last 8 bits are used to indicate how to interpret the flags field * in pvclock structure. If no bits are set, all flags are ignored. diff --git a/arch/x86/kernel/kvm.c b/arch/x86/kernel/kvm.c index 4e37d1a851a6..971babe964d2 100644 --- a/arch/x86/kernel/kvm.c +++ b/arch/x86/kernel/kvm.c @@ -341,10 +341,10 @@ static void kvm_guest_cpu_init(void) #endif pa |= KVM_ASYNC_PF_ENABLED; - /* Async page fault support for L1 hypervisor is optional */ - if (wrmsr_safe(MSR_KVM_ASYNC_PF_EN, - (pa | KVM_ASYNC_PF_DELIVERY_AS_PF_VMEXIT) & 0xffffffff, pa >> 32) < 0) - wrmsrl(MSR_KVM_ASYNC_PF_EN, pa); + if (kvm_para_has_feature(KVM_FEATURE_ASYNC_PF_VMEXIT)) + pa |= KVM_ASYNC_PF_DELIVERY_AS_PF_VMEXIT; + + wrmsrl(MSR_KVM_ASYNC_PF_EN, pa); __this_cpu_write(apf_reason.enabled, 1); printk(KERN_INFO"KVM setup async PF for cpu %d\n", smp_processor_id()); diff --git a/arch/x86/kvm/cpuid.c b/arch/x86/kvm/cpuid.c index 20e491b94f44..7fc04a176c57 100644 --- a/arch/x86/kvm/cpuid.c +++ b/arch/x86/kvm/cpuid.c @@ -604,7 +604,8 @@ static inline int __do_cpuid_ent(struct kvm_cpuid_entry2 *entry, u32 function, (1 << KVM_FEATURE_PV_EOI) | (1 << KVM_FEATURE_CLOCKSOURCE_STABLE_BIT) | (1 << KVM_FEATURE_PV_UNHALT) | - (1 << KVM_FEATURE_PV_TLB_FLUSH); + (1 << KVM_FEATURE_PV_TLB_FLUSH) | + (1 << KVM_FEATURE_ASYNC_PF_VMEXIT); if (sched_info_on()) entry->eax |= (1 << KVM_FEATURE_STEAL_TIME); -- 2.15.1

7 years, 10 months

[Linux-stable-mirror] [PATCH V2] block: pass inclusive 'lend' parameter to truncate_inode_pages_range

by Ming Lei

The 'lend' parameter of truncate_inode_pages_range is required to be inclusive, so follow the rule. This patch fixes one memory corruption triggered by discard. Cc: <stable(a)vger.kernel.org> Cc: Dmitry Monakhov <dmonakhov(a)openvz.org> Fixes: 351499a172c0 ("block: Invalidate cache on discard v2") Signed-off-by: Ming Lei <ming.lei(a)redhat.com> --- V2: - Cc stable list and Dmitry as suggested by Bart block/ioctl.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/block/ioctl.c b/block/ioctl.c index 1668506d8ed8..3884d810efd2 100644 --- a/block/ioctl.c +++ b/block/ioctl.c @@ -225,7 +225,7 @@ static int blk_ioctl_discard(struct block_device *bdev, fmode_t mode, if (start + len > i_size_read(bdev->bd_inode)) return -EINVAL; - truncate_inode_pages_range(mapping, start, start + len); + truncate_inode_pages_range(mapping, start, start + len - 1); return blkdev_issue_discard(bdev, start >> 9, len >> 9, GFP_KERNEL, flags); } -- 2.9.5

7 years, 10 months

[PATCH 1/3] IB/srp: Fix srp_abort()

by Bart Van Assche

Before commit e494f6a72839 ("[SCSI] improved eh timeout handler") it did not really matter whether or not abort handlers like srp_abort() called .scsi_done() when returning another value than SUCCESS. Since that commit however this matters. Hence only call .scsi_done() when returning SUCCESS. Signed-off-by: Bart Van Assche <bart.vanassche(a)wdc.com> Cc: stable(a)vger.kernel.org --- drivers/infiniband/ulp/srp/ib_srp.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/drivers/infiniband/ulp/srp/ib_srp.c b/drivers/infiniband/ulp/srp/ib_srp.c index 241c0e72dce3..4a1a489ce8bb 100644 --- a/drivers/infiniband/ulp/srp/ib_srp.c +++ b/drivers/infiniband/ulp/srp/ib_srp.c @@ -2974,9 +2974,11 @@ static int srp_abort(struct scsi_cmnd *scmnd) ret = FAST_IO_FAIL; else ret = FAILED; - srp_free_req(ch, req, scmnd, 0); - scmnd->result = DID_ABORT << 16; - scmnd->scsi_done(scmnd); + if (ret == SUCCESS) { + srp_free_req(ch, req, scmnd, 0); + scmnd->result = DID_ABORT << 16; + scmnd->scsi_done(scmnd); + } return ret; } -- 2.16.2

7 years, 10 months

Re: new OOPS in 4.15.4 in rcu_call within softirq

by Alexandre Oliva

On Feb 22, 2018, Bart Van Assche <Bart.VanAssche(a)wdc.com> wrote: > Alexandre, can you try patch "[PATCH v2] Avoid that ATA error handling can > trigger a kernel hang or oops" > (https://www.mail-archive.com/linux-scsi@vger.kernel.org/msg71189.html)? Thanks. I confirm that applying it on top of 4.15.4 seems to make the problem go away on all affected machines. I write 'seems' just because I can't quite prove the oops won't happen any more, but I'm pretty sure if it were to, it would have already ;-) Thanks, again! -- Alexandre Oliva, freedom fighter http://FSFLA.org/~lxoliva/ You must be the change you wish to see in the world. -- Gandhi Be Free! -- http://FSFLA.org/ FSF Latin America board member Free Software Evangelist|Red Hat Brasil GNU Toolchain Engineer

7 years, 10 months

[PULL 2/2] ARM: kvm: fix building with gcc-8

by Christoffer Dall

From: Arnd Bergmann <arnd(a)arndb.de> In banked-sr.c, we use a top-level '__asm__(".arch_extension virt")' statement to allow compilation of a multi-CPU kernel for ARMv6 and older ARMv7-A that don't normally support access to the banked registers. This is considered to be a programming error by the gcc developers and will no longer work in gcc-8, where we now get a build error: /tmp/cc4Qy7GR.s:34: Error: Banked registers are not available with this architecture. -- `mrs r3,SP_usr' /tmp/cc4Qy7GR.s:41: Error: Banked registers are not available with this architecture. -- `mrs r3,ELR_hyp' /tmp/cc4Qy7GR.s:55: Error: Banked registers are not available with this architecture. -- `mrs r3,SP_svc' /tmp/cc4Qy7GR.s:62: Error: Banked registers are not available with this architecture. -- `mrs r3,LR_svc' /tmp/cc4Qy7GR.s:69: Error: Banked registers are not available with this architecture. -- `mrs r3,SPSR_svc' /tmp/cc4Qy7GR.s:76: Error: Banked registers are not available with this architecture. -- `mrs r3,SP_abt' Passign the '-march-armv7ve' flag to gcc works, and is ok here, because we know the functions won't ever be called on pre-ARMv7VE machines. Unfortunately, older compiler versions (4.8 and earlier) do not understand that flag, so we still need to keep the asm around. Backporting to stable kernels (4.6+) is needed to allow those to be built with future compilers as well. Link: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84129 Fixes: 33280b4cd1dc ("ARM: KVM: Add banked registers save/restore") Cc: stable(a)vger.kernel.org Signed-off-by: Arnd Bergmann <arnd(a)arndb.de> Signed-off-by: Christoffer Dall <christoffer.dall(a)linaro.org> --- arch/arm/kvm/hyp/Makefile | 5 +++++ arch/arm/kvm/hyp/banked-sr.c | 4 ++++ 2 files changed, 9 insertions(+) diff --git a/arch/arm/kvm/hyp/Makefile b/arch/arm/kvm/hyp/Makefile index 5638ce0c9524..63d6b404d88e 100644 --- a/arch/arm/kvm/hyp/Makefile +++ b/arch/arm/kvm/hyp/Makefile @@ -7,6 +7,8 @@ ccflags-y += -fno-stack-protector -DDISABLE_BRANCH_PROFILING KVM=../../../../virt/kvm +CFLAGS_ARMV7VE :=$(call cc-option, -march=armv7ve) + obj-$(CONFIG_KVM_ARM_HOST) += $(KVM)/arm/hyp/vgic-v2-sr.o obj-$(CONFIG_KVM_ARM_HOST) += $(KVM)/arm/hyp/vgic-v3-sr.o obj-$(CONFIG_KVM_ARM_HOST) += $(KVM)/arm/hyp/timer-sr.o @@ -15,7 +17,10 @@ obj-$(CONFIG_KVM_ARM_HOST) += tlb.o obj-$(CONFIG_KVM_ARM_HOST) += cp15-sr.o obj-$(CONFIG_KVM_ARM_HOST) += vfp.o obj-$(CONFIG_KVM_ARM_HOST) += banked-sr.o +CFLAGS_banked-sr.o += $(CFLAGS_ARMV7VE) + obj-$(CONFIG_KVM_ARM_HOST) += entry.o obj-$(CONFIG_KVM_ARM_HOST) += hyp-entry.o obj-$(CONFIG_KVM_ARM_HOST) += switch.o +CFLAGS_switch.o += $(CFLAGS_ARMV7VE) obj-$(CONFIG_KVM_ARM_HOST) += s2-setup.o diff --git a/arch/arm/kvm/hyp/banked-sr.c b/arch/arm/kvm/hyp/banked-sr.c index 111bda8cdebd..be4b8b0a40ad 100644 --- a/arch/arm/kvm/hyp/banked-sr.c +++ b/arch/arm/kvm/hyp/banked-sr.c @@ -20,6 +20,10 @@ #include <asm/kvm_hyp.h> +/* + * gcc before 4.9 doesn't understand -march=armv7ve, so we have to + * trick the assembler. + */ __asm__(".arch_extension virt"); void __hyp_text __banked_save_state(struct kvm_cpu_context *ctxt) -- 2.14.2

7 years, 10 months

[PULL 1/2] KVM: arm/arm64: Fix arch timers with userspace irqchips

by Christoffer Dall

When introducing support for irqchip in userspace we needed a way to mask the timer signal to prevent the guest continuously exiting due to a screaming timer. We did this by disabling the corresponding percpu interrupt on the host interrupt controller, because we cannot rely on the host system having a GIC, and therefore cannot make any assumptions about having an active state to hide the timer signal. Unfortunately, when introducing this feature, it became entirely possible that a VCPU which belongs to a VM that has a userspace irqchip can disable the vtimer irq on the host on some physical CPU, and then go away without ever enabling the vtimer irq on that physical CPU again. This means that using irqchips in userspace on a system that also supports running VMs with an in-kernel GIC can prevent forward progress from in-kernel GIC VMs. Later on, when we started taking virtual timer interrupts in the arch timer code, we would also leave this timer state active for userspace irqchip VMs, because we leave it up to a VGIC-enabled guest to deactivate the hardware IRQ using the HW bit in the LR. Both issues are solved by only using the enable/disable trick on systems that do not have a host GIC which supports the active state, because all VMs on such systems must use irqchips in userspace. Systems that have a working GIC with support for an active state use the active state to mask the timer signal for both userspace and in-kernel irqchips. Cc: Alexander Graf <agraf(a)suse.de> Reviewed-by: Marc Zyngier <marc.zyngier(a)arm.com> Cc: <stable(a)vger.kernel.org> # v4.12+ Fixes: d9e139778376 ("KVM: arm/arm64: Support arch timers with a userspace gic") Signed-off-by: Christoffer Dall <christoffer.dall(a)linaro.org> --- virt/kvm/arm/arch_timer.c | 116 +++++++++++++++++++++++++--------------------- 1 file changed, 64 insertions(+), 52 deletions(-) diff --git a/virt/kvm/arm/arch_timer.c b/virt/kvm/arm/arch_timer.c index 70268c0bec79..70f4c30918eb 100644 --- a/virt/kvm/arm/arch_timer.c +++ b/virt/kvm/arm/arch_timer.c @@ -36,6 +36,8 @@ static struct timecounter *timecounter; static unsigned int host_vtimer_irq; static u32 host_vtimer_irq_flags; +static DEFINE_STATIC_KEY_FALSE(has_gic_active_state); + static const struct kvm_irq_level default_ptimer_irq = { .irq = 30, .level = 1, @@ -56,6 +58,12 @@ u64 kvm_phys_timer_read(void) return timecounter->cc->read(timecounter->cc); } +static inline bool userspace_irqchip(struct kvm *kvm) +{ + return static_branch_unlikely(&userspace_irqchip_in_use) && + unlikely(!irqchip_in_kernel(kvm)); +} + static void soft_timer_start(struct hrtimer *hrt, u64 ns) { hrtimer_start(hrt, ktime_add_ns(ktime_get(), ns), @@ -69,25 +77,6 @@ static void soft_timer_cancel(struct hrtimer *hrt, struct work_struct *work) cancel_work_sync(work); } -static void kvm_vtimer_update_mask_user(struct kvm_vcpu *vcpu) -{ - struct arch_timer_context *vtimer = vcpu_vtimer(vcpu); - - /* - * When using a userspace irqchip with the architected timers, we must - * prevent continuously exiting from the guest, and therefore mask the - * physical interrupt by disabling it on the host interrupt controller - * when the virtual level is high, such that the guest can make - * forward progress. Once we detect the output level being - * de-asserted, we unmask the interrupt again so that we exit from the - * guest when the timer fires. - */ - if (vtimer->irq.level) - disable_percpu_irq(host_vtimer_irq); - else - enable_percpu_irq(host_vtimer_irq, 0); -} - static irqreturn_t kvm_arch_timer_handler(int irq, void *dev_id) { struct kvm_vcpu *vcpu = *(struct kvm_vcpu **)dev_id; @@ -106,9 +95,9 @@ static irqreturn_t kvm_arch_timer_handler(int irq, void *dev_id) if (kvm_timer_should_fire(vtimer)) kvm_timer_update_irq(vcpu, true, vtimer); - if (static_branch_unlikely(&userspace_irqchip_in_use) && - unlikely(!irqchip_in_kernel(vcpu->kvm))) - kvm_vtimer_update_mask_user(vcpu); + if (userspace_irqchip(vcpu->kvm) && + !static_branch_unlikely(&has_gic_active_state)) + disable_percpu_irq(host_vtimer_irq); return IRQ_HANDLED; } @@ -290,8 +279,7 @@ static void kvm_timer_update_irq(struct kvm_vcpu *vcpu, bool new_level, trace_kvm_timer_update_irq(vcpu->vcpu_id, timer_ctx->irq.irq, timer_ctx->irq.level); - if (!static_branch_unlikely(&userspace_irqchip_in_use) || - likely(irqchip_in_kernel(vcpu->kvm))) { + if (!userspace_irqchip(vcpu->kvm)) { ret = kvm_vgic_inject_irq(vcpu->kvm, vcpu->vcpu_id, timer_ctx->irq.irq, timer_ctx->irq.level, @@ -350,12 +338,6 @@ static void kvm_timer_update_state(struct kvm_vcpu *vcpu) phys_timer_emulate(vcpu); } -static void __timer_snapshot_state(struct arch_timer_context *timer) -{ - timer->cnt_ctl = read_sysreg_el0(cntv_ctl); - timer->cnt_cval = read_sysreg_el0(cntv_cval); -} - static void vtimer_save_state(struct kvm_vcpu *vcpu) { struct arch_timer_cpu *timer = &vcpu->arch.timer_cpu; @@ -367,8 +349,10 @@ static void vtimer_save_state(struct kvm_vcpu *vcpu) if (!vtimer->loaded) goto out; - if (timer->enabled) - __timer_snapshot_state(vtimer); + if (timer->enabled) { + vtimer->cnt_ctl = read_sysreg_el0(cntv_ctl); + vtimer->cnt_cval = read_sysreg_el0(cntv_cval); + } /* Disable the virtual timer */ write_sysreg_el0(0, cntv_ctl); @@ -460,23 +444,43 @@ static void set_cntvoff(u64 cntvoff) kvm_call_hyp(__kvm_timer_set_cntvoff, low, high); } -static void kvm_timer_vcpu_load_vgic(struct kvm_vcpu *vcpu) +static inline void set_vtimer_irq_phys_active(struct kvm_vcpu *vcpu, bool active) +{ + int r; + r = irq_set_irqchip_state(host_vtimer_irq, IRQCHIP_STATE_ACTIVE, active); + WARN_ON(r); +} + +static void kvm_timer_vcpu_load_gic(struct kvm_vcpu *vcpu) { struct arch_timer_context *vtimer = vcpu_vtimer(vcpu); bool phys_active; - int ret; - phys_active = kvm_vgic_map_is_active(vcpu, vtimer->irq.irq); - - ret = irq_set_irqchip_state(host_vtimer_irq, - IRQCHIP_STATE_ACTIVE, - phys_active); - WARN_ON(ret); + if (irqchip_in_kernel(vcpu->kvm)) + phys_active = kvm_vgic_map_is_active(vcpu, vtimer->irq.irq); + else + phys_active = vtimer->irq.level; + set_vtimer_irq_phys_active(vcpu, phys_active); } -static void kvm_timer_vcpu_load_user(struct kvm_vcpu *vcpu) +static void kvm_timer_vcpu_load_nogic(struct kvm_vcpu *vcpu) { - kvm_vtimer_update_mask_user(vcpu); + struct arch_timer_context *vtimer = vcpu_vtimer(vcpu); + + /* + * When using a userspace irqchip with the architected timers and a + * host interrupt controller that doesn't support an active state, we + * must still prevent continuously exiting from the guest, and + * therefore mask the physical interrupt by disabling it on the host + * interrupt controller when the virtual level is high, such that the + * guest can make forward progress. Once we detect the output level + * being de-asserted, we unmask the interrupt again so that we exit + * from the guest when the timer fires. + */ + if (vtimer->irq.level) + disable_percpu_irq(host_vtimer_irq); + else + enable_percpu_irq(host_vtimer_irq, host_vtimer_irq_flags); } void kvm_timer_vcpu_load(struct kvm_vcpu *vcpu) @@ -487,10 +491,10 @@ void kvm_timer_vcpu_load(struct kvm_vcpu *vcpu) if (unlikely(!timer->enabled)) return; - if (unlikely(!irqchip_in_kernel(vcpu->kvm))) - kvm_timer_vcpu_load_user(vcpu); + if (static_branch_likely(&has_gic_active_state)) + kvm_timer_vcpu_load_gic(vcpu); else - kvm_timer_vcpu_load_vgic(vcpu); + kvm_timer_vcpu_load_nogic(vcpu); set_cntvoff(vtimer->cntvoff); @@ -555,18 +559,24 @@ static void unmask_vtimer_irq_user(struct kvm_vcpu *vcpu) { struct arch_timer_context *vtimer = vcpu_vtimer(vcpu); - if (unlikely(!irqchip_in_kernel(vcpu->kvm))) { - __timer_snapshot_state(vtimer); - if (!kvm_timer_should_fire(vtimer)) { - kvm_timer_update_irq(vcpu, false, vtimer); - kvm_vtimer_update_mask_user(vcpu); - } + if (!kvm_timer_should_fire(vtimer)) { + kvm_timer_update_irq(vcpu, false, vtimer); + if (static_branch_likely(&has_gic_active_state)) + set_vtimer_irq_phys_active(vcpu, false); + else + enable_percpu_irq(host_vtimer_irq, host_vtimer_irq_flags); } } void kvm_timer_sync_hwstate(struct kvm_vcpu *vcpu) { - unmask_vtimer_irq_user(vcpu); + struct arch_timer_cpu *timer = &vcpu->arch.timer_cpu; + + if (unlikely(!timer->enabled)) + return; + + if (unlikely(!irqchip_in_kernel(vcpu->kvm))) + unmask_vtimer_irq_user(vcpu); } int kvm_timer_vcpu_reset(struct kvm_vcpu *vcpu) @@ -753,6 +763,8 @@ int kvm_timer_hyp_init(bool has_gic) kvm_err("kvm_arch_timer: error setting vcpu affinity\n"); goto out_free_irq; } + + static_branch_enable(&has_gic_active_state); } kvm_info("virtual timer IRQ%d\n", host_vtimer_irq); -- 2.14.2

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