1. 25 Mar, 2016 7 commits
    • Linus Torvalds's avatar
      Merge branch 'misc' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild · 70c5eb84
      Linus Torvalds authored
      Pull kbuild misc updates from Michal Marek:
       "The non-critical part of kbuild for v4.6-rc1:
      
         - coccinelle cleanup and a new patch
         - make tags rule for kprobe helpers
         - make rpm fix to avoid spurious grub2 entries
         - make rpm support for %postun script (Fedora only at the moment)"
      
      * 'misc' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild:
        kbuild/mkspec: clean boot loader configuration on rpm removal
        kbuild/mkspec: fix grub2 installkernel issue
        Coccinelle: Add api/setup_timer.cocci
        coccinelle: bugon: reduce rule applicability
        Coccinelle: pm_runtime: reduce rule applicability
        Coccinelle: array_size: reduce rule applicability
        Coccinelle: reduce rule applicability
        scripts/tags.sh: add regex to map kprobe helpers
        scripts/coccinelle: modernize &
      70c5eb84
    • Linus Torvalds's avatar
      Merge branch 'kconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild · 3a1ef0e0
      Linus Torvalds authored
      Pull kconfig updates from Michal Marek:
       "Just two kconfig commits this time:
      
         - kconfig Makefile fix for make 3.80
      
         - Fix calculating symbols so that KCONFIG_ALLCONFIG=... does not
           disable CONFIG_MODULES silently"
      
      * 'kconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild:
        unbreak allmodconfig KCONFIG_ALLCONFIG=...
        scripts/kconfig: allow building with make 3.80 again
      3a1ef0e0
    • Linus Torvalds's avatar
      Merge branch 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild · 2162b80f
      Linus Torvalds authored
      Pull kbuild updates from Michal Marek:
      
       - make dtbs_install fix
      
       - Error handling fix fixdep and link-vmlinux.sh
      
       - __UNIQUE_ID fix for clang
      
       - Fix for if_changed_* to suppress the "is up to date." message
      
       - The kernel is built with -Werror=incompatible-pointer-types
      
      * 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild:
        kbuild: Add option to turn incompatible pointer check into error
        kbuild: suppress annoying "... is up to date." message
        kbuild: fixdep: Check fstat(2) return value
        scripts/link-vmlinux.sh: force error on kallsyms failure
        Kbuild: provide a __UNIQUE_ID for clang
        dtbsinstall: don't move target directory out of the way
      2162b80f
    • Linus Torvalds's avatar
      Merge branch 'parisc-4.6-1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux · 976fb3f7
      Linus Torvalds authored
      Pull parisc updates from Helge Deller:
       "This patchset adds stack usage debug info for parisc and metag (on
        both the stack grows upwards), switches to the new generic realative
        extable search and sort routines, drops the long time ago removed
        syscalls alloc_hugepages and free_hugepages and wires up the new
        preadv2 and pwritev2 syscalls"
      
      * 'parisc-4.6-1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
        parisc: Wire up preadv2 and pwritev2 syscalls
        parisc: Use generic extable search and sort routines
        parisc: Panic immediately when panic_on_oops
        parisc,metag: Implement CONFIG_DEBUG_STACK_USAGE option
        parisc: Drop alloc_hugepages and free_hugepages syscalls
      976fb3f7
    • Linus Torvalds's avatar
      Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux · 9d854607
      Linus Torvalds authored
      Pull second set of arm64 updates from Catalin Marinas:
      
       - KASLR bug fixes: use callee-saved register, boot-time I-cache
         maintenance
      
       - inv_entry asm macro fix (EL0 check typo)
      
       - pr_notice("Virtual kernel memory layout...") splitting
      
       - Clean-ups: use p?d_set_huge consistently, allow preemption around
         copy_to_user_page, remove unused __local_flush_icache_all()
      
      * tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
        arm64: mm: allow preemption in copy_to_user_page
        arm64: consistently use p?d_set_huge
        arm64: kaslr: use callee saved register to preserve SCTLR across C call
        arm64: Split pr_notice("Virtual kernel memory layout...") into multiple pr_cont()
        arm64: drop unused __local_flush_icache_all()
        arm64: fix KASLR boot-time I-cache maintenance
        arm64/kernel: fix incorrect EL0 check in inv_entry macro
      9d854607
    • Linus Torvalds's avatar
      Merge tag 'armsoc-dt2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc · 8a20a04b
      Linus Torvalds authored
      Pull more ARM DT changes from Arnd Bergmann:
       "Here are some final updates for ARM SoC specific dts files:
      
         - The i.MX changes were sent relatively late, and had a dependency on
           the clk tree, so I delayed that a bit.  Support for the new i.MX6qp
           SoC and a couple of new boards is added in this branch.
      
         - Uniphier renames a few files to match the final product names that
           were decided by the company, kudos to the kernel developer(s) for
           getting support upstream before the product release.  Also two
           boards are added.  The patches were posted early enough and nice
           overall, but we forgot to apply them and decided to give it some
           more time in linux-next
      
         - at91 has two small bug fixes"
      
      * tag 'armsoc-dt2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (83 commits)
        ARM: dts: at91: sama5d4 Xplained: don't disable hsmci regulator
        ARM: dts: at91: sama5d3 Xplained: don't disable hsmci regulator
        ARM: dts: uniphier: add pinmux node for I2C ch4
        ARM: dts: uniphier: add @{address} to EEPROM node
        ARM: dts: uniphier: add PH1-Pro4 Sanji board support
        ARM: dts: uniphier: add PH1-Pro4 Ace board support
        ARM: dts: uniphier: enable I2C channel 2 of ProXstream2 Gentil board
        ARM: dts: uniphier: add EEPROM node for ProXstream2 Gentil board
        ARM: dts: uniphier: add reference clock nodes
        ARM: dts: uniphier: rework UniPhier System Bus nodes
        ARM: dts: uniphier: factor out ranges property of support card
        arm64: dts: uniphier: rename PH1-LD10 to PH1-LD20
        ARM: dts: imx53-qsb: Fix gpio button polarity
        ARM: dts: vfxxx: Add DAC node for Vybrid SoC
        ARM: dts: imx6q: add missing links between ipu2 and mipi dsi
        ARM: dts: imx: Add support for Advantech/GE B850v3
        ARM: dts: imx: Add support for Advantech/GE B650v3
        ARM: dts: imx: Add support for Advantech/GE B450v3
        ARM: dts: imx: Add support for Advantech/GE Bx50v3
        ARM: dts: imx: Add Advantech BA-16 Qseven module
        ...
      8a20a04b
    • Linus Torvalds's avatar
      Merge tag 'for-4.6' of git://git.osdn.jp/gitroot/uclinux-h8/linux · 732b84ee
      Linus Torvalds authored
      Pull h8300 updates from Yoshinori Sato:
       "Various h8300 fixes"
      
      * tag 'for-4.6' of git://git.osdn.jp/gitroot/uclinux-h8/linux:
        h8300: switch EARLYCON
        h8300: dts: Rename the serial port clock to fck
      732b84ee
  2. 24 Mar, 2016 22 commits
    • Linus Torvalds's avatar
      Merge tag 'trace-v4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace · e46b4e2b
      Linus Torvalds authored
      Pull tracing updates from Steven Rostedt:
       "Nothing major this round.  Mostly small clean ups and fixes.
      
        Some visible changes:
      
         - A new flag was added to distinguish traces done in NMI context.
      
         - Preempt tracer now shows functions where preemption is disabled but
           interrupts are still enabled.
      
        Other notes:
      
         - Updates were done to function tracing to allow better performance
           with perf.
      
         - Infrastructure code has been added to allow for a new histogram
           feature for recording live trace event histograms that can be
           configured by simple user commands.  The feature itself was just
           finished, but needs a round in linux-next before being pulled.
      
           This only includes some infrastructure changes that will be needed"
      
      * tag 'trace-v4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: (22 commits)
        tracing: Record and show NMI state
        tracing: Fix trace_printk() to print when not using bprintk()
        tracing: Remove redundant reset per-CPU buff in irqsoff tracer
        x86: ftrace: Fix the misleading comment for arch/x86/kernel/ftrace.c
        tracing: Fix crash from reading trace_pipe with sendfile
        tracing: Have preempt(irqs)off trace preempt disabled functions
        tracing: Fix return while holding a lock in register_tracer()
        ftrace: Use kasprintf() in ftrace_profile_tracefs()
        ftrace: Update dynamic ftrace calls only if necessary
        ftrace: Make ftrace_hash_rec_enable return update bool
        tracing: Fix typoes in code comment and printk in trace_nop.c
        tracing, writeback: Replace cgroup path to cgroup ino
        tracing: Use flags instead of bool in trigger structure
        tracing: Add an unreg_all() callback to trigger commands
        tracing: Add needs_rec flag to event triggers
        tracing: Add a per-event-trigger 'paused' field
        tracing: Add get_syscall_name()
        tracing: Add event record param to trigger_ops.func()
        tracing: Make event trigger functions available
        tracing: Make ftrace_event_field checking functions available
        ...
      e46b4e2b
    • Linus Torvalds's avatar
      Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux · faea72dd
      Linus Torvalds authored
      Pull thermal updates from Zhang Rui:
      
       - Fix a regression where bogus trip points on some Lenovo laptops start
         to screw up thermal control after commit 81ad4276 ("Thermal:
         initialize thermal zone device correctly").
      
         On these Lenovo laptops, a bogus passive trip point is reported,
         which is 0 degree Celsius.  Without commit 81ad4276, thermal zone
         fails to set cooling devices to proper cooling state, which is a bug.
         But with commit 81ad4276 applied, the processors are always
         throttled on these Lenovo laptops because the current temperature is
         always higher than the passive trip point.
      
         Fix things to ignore such bogus trip points.  (Zhang Rui)
      
       - Introduce Mediatek thermal driver.  (Sascha Hauer)
      
       - Introduce devm_ versions of OF thermal sensor register API.  (Laxman
         Dewangan)
      
       - Changes in Kconfigs to allow compile test on UM arch.  (Krzysztof
         Kozlowski)
      
       - Introduce Skylake support in intel_pch_thermal driver.  (Srinivas
         Pandruvada)
      
       - Several small fixes on Rockchip, TI-SoC, Tegra, RCar, and Exynos
         thermal drivers.
      
      * 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux: (26 commits)
        Thermal: Ignore invalid trip points
        thermal: trace: migrating thermal traces to use TRACE_DEFINE_ENUM() macros
        thermal: intel_pch_thermal: Enable Skylake PCH thermal
        thermal: doc: Add details of devm_thermal_zone_of_sensor_{register,unregister}
        thermal: of-thermal: Add devm version of thermal_zone_of_sensor_register
        thermal: doc: Add details of thermal_zone_of_sensor_{register,unregister}
        thermal: exynos: Defer probe if vtmu is present but not registered
        thermal: exynos: Use devm_regulator_get_optional() for vtmu
        thermal: exynos: List vtmu-supply as optional property in DT binding
        thermal: exynos: Print a message about exceeded number of supported trip-points
        thermal: exynos: Document number of supported trip-points
        thermal: exynos: Document compatible for Exynos5433 TMU
        thermal: mtk: allow compile testing on UM
        thermal: tegra_soctherm: fix sign bit of temperature
        thermal: Fix build error of missing devm_ioremap_resource on UM
        thermal: ti-soc-thermal: clean up the error handling a bit
        thermal: rcar: Use ARCH_RENESAS
        thermal: rcar_thermal: don't open code of_device_get_match_data()
        thermal: db8500_cpufreq_cooling: Compile with COMPILE_TEST
        thermal: rockchip: fix the tsadc sequence output on rk3228/rk3399
        ...
      faea72dd
    • Linus Torvalds's avatar
      Merge tag 'nfsd-4.6' of git://linux-nfs.org/~bfields/linux · 5b1e167d
      Linus Torvalds authored
      Pull nfsd updates from Bruce Fields:
       "Various bugfixes, a RDMA update from Chuck Lever, and support for a
        new pnfs layout type from Christoph Hellwig.  The new layout type is a
        variant of the block layout which uses SCSI features to offer improved
        fencing and device identification.
      
        (Also: note this pull request also includes the client side of SCSI
        layout, with Trond's permission.)"
      
      * tag 'nfsd-4.6' of git://linux-nfs.org/~bfields/linux:
        sunrpc/cache: drop reference when sunrpc_cache_pipe_upcall() detects a race
        nfsd: recover: fix memory leak
        nfsd: fix deadlock secinfo+readdir compound
        nfsd4: resfh unused in nfsd4_secinfo
        svcrdma: Use new CQ API for RPC-over-RDMA server send CQs
        svcrdma: Use new CQ API for RPC-over-RDMA server receive CQs
        svcrdma: Remove close_out exit path
        svcrdma: Hook up the logic to return ERR_CHUNK
        svcrdma: Use correct XID in error replies
        svcrdma: Make RDMA_ERROR messages work
        rpcrdma: Add RPCRDMA_HDRLEN_ERR
        svcrdma: svc_rdma_post_recv() should close connection on error
        svcrdma: Close connection when a send error occurs
        nfsd: Lower NFSv4.1 callback message size limit
        svcrdma: Do not send Write chunk XDR pad with inline content
        svcrdma: Do not write xdr_buf::tail in a Write chunk
        svcrdma: Find client-provided write and reply chunks once per reply
        nfsd: Update NFS server comments related to RDMA support
        nfsd: Fix a memory leak when meeting unsupported state_protect_how4
        nfsd4: fix bad bounds checking
      5b1e167d
    • Linus Torvalds's avatar
      Merge tag 'staging-4.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging · 8b97be05
      Linus Torvalds authored
      Pull staging driver fixes from Greg KH:
       "Here are some fixes that poped up due to the big staging tree merge,
        as well as the removal of a staging driver that now is covered by a
        "real" driver.
      
        All of these have been in linux-next for a few days with no reported
        issues"
      
      * tag 'staging-4.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
        staging: delete STE RMI4 hackish driver
        staging: android: ion_test: fix check of platform_device_register_simple() error code
        staging: wilc1000: fix a couple of memory leaks
        staging: fsl-mc: fix incorrect type passed to dev_err macros
        staging: fsl-mc: fix incorrect type passed to dev_dbg macros
        staging: wilc1000: fixed kernel panic when firmware is not started
        staging: comedi: ni_mio_common: fix the ni_write[blw]() functions
        staging: most: hdm-dim2: Remove possible dereference error
        staging: lustre: checking for NULL instead of IS_ERR
        staging: lustre: really make lustre dependent on LNet
        staging: refresh TODO for rtl8712
        staging: refresh TODO for rtl8723au
      8b97be05
    • Linus Torvalds's avatar
      Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 44d1b6dd
      Linus Torvalds authored
      Pull timer fix from Thomas Gleixner:
       "A single fix to the pistachio clocksource driver using the proper
        signedness in the error print format"
      
      * 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        clocksource/drivers/pistachio: Correct output format of PTR_ERR()
      44d1b6dd
    • Linus Torvalds's avatar
      Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 0f0fbec9
      Linus Torvalds authored
      Pull irq fixes from Thomas Gleixner:
       "A small set of fixes for the usual ARM/SOC irqchip drivers
      
         - A set of fixes for mbigen to handle multiple devices in a hardware
           module proper
      
         - A cleanup for the mbigen config option which was pointlessly user
           configurable.
      
         - A cleanup for tegra replacing open coded functionality by the
           proper core function
      
        The config cleanup touches arch/arm64/Kconfig.platforms to select the
        irq chip for the related platform"
      
      * 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        irqchip/mbigen: Make CONFIG_HISILICON_IRQ_MBIGEN a hidden option
        ARM64: Kconfig: Select mbigen interrupt controller on Hisilicon platform
        irqchip/mbigen: Handle multiple device nodes in a mbigen module
        irqchip/mbigen: Adjust DT bindings to handle multiple devices in a module
        irqchip/tegra: Switch to use irq_domain_free_irqs_common
      0f0fbec9
    • Linus Torvalds's avatar
      Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 3fa2fe2c
      Linus Torvalds authored
      Pull perf fixes from Ingo Molnar:
       "This tree contains various perf fixes on the kernel side, plus three
        hw/event-enablement late additions:
      
         - Intel Memory Bandwidth Monitoring events and handling
         - the AMD Accumulated Power Mechanism reporting facility
         - more IOMMU events
      
        ... and a final round of perf tooling updates/fixes"
      
      * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (44 commits)
        perf llvm: Use strerror_r instead of the thread unsafe strerror one
        perf llvm: Use realpath to canonicalize paths
        perf tools: Unexport some methods unused outside strbuf.c
        perf probe: No need to use formatting strbuf method
        perf help: Use asprintf instead of adhoc equivalents
        perf tools: Remove unused perf_pathdup, xstrdup functions
        perf tools: Do not include stringify.h from the kernel sources
        tools include: Copy linux/stringify.h from the kernel
        tools lib traceevent: Remove redundant CPU output
        perf tools: Remove needless 'extern' from function prototypes
        perf tools: Simplify die() mechanism
        perf tools: Remove unused DIE_IF macro
        perf script: Remove lots of unused arguments
        perf thread: Rename perf_event__preprocess_sample_addr to thread__resolve
        perf machine: Rename perf_event__preprocess_sample to machine__resolve
        perf tools: Add cpumode to struct perf_sample
        perf tests: Forward the perf_sample in the dwarf unwind test
        perf tools: Remove misplaced __maybe_unused
        perf list: Fix documentation of :ppp
        perf bench numa: Fix assertion for nodes bitfield
        ...
      3fa2fe2c
    • Arnd Bergmann's avatar
      Merge tag 'at91-fixes' of... · 6fe35ab7
      Arnd Bergmann authored
      Merge tag 'at91-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nferre/linux-at91 into next/dt2
      
      Merge "First fixes batch for AT91 on 4.6 - DT only fixes" from Nicolas Ferre:
      - prevent the boards from having glitches when inserting/removing SD card on
        sama5d3/d4 Xplained. The regulators should be kept on.
      
      * tag 'at91-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nferre/linux-at91:
        ARM: dts: at91: sama5d4 Xplained: don't disable hsmci regulator
        ARM: dts: at91: sama5d3 Xplained: don't disable hsmci regulator
        ARM: dts: at91: sama5d2 Xplained: add leds node
        ARM: dts: at91: sama5d2 Xplained: add user push button
        ARM: dts: at91: sama5d2 Xplained: set pin muxing for usb gadget and usb host
        ARM: dts: at91: sama5d2: add nand0 and nfc0 nodes
        ARM: dts: at91: sama5d2: add dma properties to UART nodes
        ARM: dts: at91: sama5d2 Xplained: Correct the macb irq pinctrl node
      6fe35ab7
    • Linus Torvalds's avatar
      Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · d88f48e1
      Linus Torvalds authored
      Pull x86 fixes from Ingo Molnar:
       "Misc fixes:
      
         - fix hotplug bugs
         - fix irq live lock
         - fix various topology handling bugs
         - fix APIC ACK ordering
         - fix PV iopl handling
         - fix speling
         - fix/tweak memcpy_mcsafe() return value
         - fix fbcon bug
         - remove stray prototypes"
      
      * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        x86/msr: Remove unused native_read_tscp()
        x86/apic: Remove declaration of unused hw_nmi_is_cpu_stuck
        x86/oprofile/nmi: Add missing hotplug FROZEN handling
        x86/hpet: Use proper mask to modify hotplug action
        x86/apic/uv: Fix the hotplug notifier
        x86/apb/timer: Use proper mask to modify hotplug action
        x86/topology: Use total_cpus not nr_cpu_ids for logical packages
        x86/topology: Fix Intel HT disable
        x86/topology: Fix logical package mapping
        x86/irq: Cure live lock in fixup_irqs()
        x86/tsc: Prevent NULL pointer deref in calibrate_delay_is_known()
        x86/apic: Fix suspicious RCU usage in smp_trace_call_function_interrupt()
        x86/iopl: Fix iopl capability check on Xen PV
        x86/iopl/64: Properly context-switch IOPL on Xen PV
        selftests/x86: Add an iopl test
        x86/mm, x86/mce: Fix return type/value for memcpy_mcsafe()
        x86/video: Don't assume all FB devices are PCI devices
        arch/x86/irq: Purge useless handler declarations from hw_irq.h
        x86: Fix misspellings in comments
      d88f48e1
    • Yoshinori Sato's avatar
      h8300: switch EARLYCON · 8cad4892
      Yoshinori Sato authored
      earlyprintk is architecture specific option.
      earlycon is generic and small footprint.
      Signed-off-by: default avatarYoshinori Sato <ysato@users.sourceforge.jp>
      8cad4892
    • Geert Uytterhoeven's avatar
      h8300: dts: Rename the serial port clock to fck · d8581616
      Geert Uytterhoeven authored
      The clock is really the device functional clock, not the interface
      clock. Rename it.
      Signed-off-by: default avatarGeert Uytterhoeven <geert+renesas@glider.be>
      Acked-by: default avatarLaurent Pinchart <laurent.pinchart@ideasonboard.com>
      d8581616
    • Linus Torvalds's avatar
      Merge branch 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · be53f58f
      Linus Torvalds authored
      Pull scheduler fixes from Ingo Molnar:
       "Misc fixes: a cgroup fix, a fair-scheduler migration accounting fix, a
        cputime fix and two cpuacct cleanups"
      
      * 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        sched/cpuacct: Simplify the cpuacct code
        sched/cpuacct: Rename parameter in cpuusage_write() for readability
        sched/fair: Add comments to explain select_idle_sibling()
        sched/fair: Fix fairness issue on migration
        sched/cgroup: Fix/cleanup cgroup teardown/init
        sched/cputime: Fix steal time accounting vs. CPU hotplug
      be53f58f
    • Linus Torvalds's avatar
      Merge branch 'locking-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 19d6f04c
      Linus Torvalds authored
      Pull locking fixes from Ingo Molnar:
       "Documentation updates and a bitops ordering fix"
      
      * 'locking-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        bitops: Do not default to __clear_bit() for __clear_bit_unlock()
        documentation: Clarify compiler store-fusion example
        documentation: Transitivity is not cumulativity
        documentation:  Add alternative release-acquire outcome
        documentation: Distinguish between local and global transitivity
        documentation: Subsequent writes ordered by rcu_dereference()
        documentation: Remove obsolete reference to RCU-protected indexes
        documentation: Fix memory-barriers.txt section references
        documentation: Fix control dependency and identical stores
      19d6f04c
    • Mark Rutland's avatar
      arm64: mm: allow preemption in copy_to_user_page · 691b1e2e
      Mark Rutland authored
      Currently we disable preemption in copy_to_user_page; a behaviour that
      we inherited from the 32-bit arm code. This was necessary for older
      cores without broadcast data cache maintenance, and ensured that cache
      lines were dirtied and cleaned by the same CPU. On these systems dirty
      cache line migration was not possible, so this was sufficient to
      guarantee coherency.
      
      On contemporary systems, cache coherence protocols permit (dirty) cache
      lines to migrate between CPUs as a result of speculation, prefetching,
      and other behaviours. To account for this, in ARMv8 data cache
      maintenance operations are broadcast and affect all data caches in the
      domain associated with the VA (i.e. ISH for kernel and user mappings).
      
      In __switch_to we ensure that tasks can be safely migrated in the middle
      of a maintenance sequence, using a dsb(ish) to ensure prior explicit
      memory accesses are observed and cache maintenance operations are
      completed before a task can be run on another CPU.
      
      Given the above, it is not necessary to disable preemption in
      copy_to_user_page. This patch removes the preempt_{disable,enable}
      calls, permitting preemption.
      Signed-off-by: default avatarMark Rutland <mark.rutland@arm.com>
      Cc: Will Deacon <will.deacon@arm.com>
      Signed-off-by: default avatarCatalin Marinas <catalin.marinas@arm.com>
      691b1e2e
    • Mark Rutland's avatar
      arm64: consistently use p?d_set_huge · c661cb1c
      Mark Rutland authored
      Commit 324420bf ("arm64: add support for ioremap() block
      mappings") added new p?d_set_huge functions which do the hard work to
      generate and set a correct block entry.
      
      These differ from open-coded huge page creation in the early page table
      code by explicitly setting the P?D_TYPE_SECT bits (which are implicitly
      retained by mk_sect_prot() for any valid prot), but are otherwise
      identical (and cannot fail on arm64).
      
      For simplicity and consistency, make use of these in the initial page
      table creation code.
      Signed-off-by: default avatarMark Rutland <mark.rutland@arm.com>
      Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
      Cc: Will Deacon <will.deacon@arm.com>
      Signed-off-by: default avatarCatalin Marinas <catalin.marinas@arm.com>
      c661cb1c
    • Ard Biesheuvel's avatar
      arm64: kaslr: use callee saved register to preserve SCTLR across C call · d5e57437
      Ard Biesheuvel authored
      The KASLR code incorrectly expects the contents of x18 to be preserved
      across a call into C code, and uses it to stash the contents of SCTLR_EL1
      before enabling the MMU. If the MMU needs to be disabled again to create
      the randomized kernel mapping, x18 is written back to SCTLR_EL1, which is
      likely to crash the system if x18 has been clobbered by kasan_early_init()
      or kaslr_early_init(). So use x22 instead, which is not in use so far in
      head.S
      Signed-off-by: default avatarArd Biesheuvel <ard.biesheuvel@linaro.org>
      Signed-off-by: default avatarCatalin Marinas <catalin.marinas@arm.com>
      d5e57437
    • Ingo Molnar's avatar
      Merge tag 'perf-core-for-mingo-20160323' of... · 05f5ece7
      Ingo Molnar authored
      Merge tag 'perf-core-for-mingo-20160323' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent
      
      Pull perf/core improvements and fixes:
      
      User visible fixes:
      
       - Fix documentation of :ppp modifier in 'perf list' (Andi Kleen)
      
       - Fix silly nodes bitfield bits/bytes length assertion in 'perf bench numa' (Jakub Jelen)
      
       - Remove redundant CPU output in libtraceevent (Steven Rostedt)
      
       - Remove 'core_id' check in topology 'perf test' (Sukadev Bhattiprolu)
      
      Infrastructure changes/fixes:
      
       - Record text offset in dso to calculate objdump address, to use with
         modules in addition to vDSO symbol address calculations (Wang Nan)
      
       - Move utilities.mak from perf to tools/scripts/ (Arnaldo Carvalho de Melo)
      
       - Add cpumode to the perf_sample struct, this way we don't need to pass
         the union event to the machine and thread resolving routines, shortening
         function signatures and allowing the future introduction of a way
         to use tracepoint events instead of the unavailable HW cycles counter on
         powerpc guests in perf kvm by just hooking on perf_evsel__parse_sample,
         at the end (Arnaldo Carvalho de Melo)
      
       - Remove/unexport die() related infrastructure, that at some point will
         finally be removed (Arnaldo Carvalho de Melo)
      
       - Adopt linux/stringify.h from the kernel sources, not to touch this
         kernel header from tools/ (Arnaldo Carvalho de Melo)
      
       - Stop using strbuf for things we can instead trivially use libc's asprintf()
         (Arnaldo Carvalho de Melo)
      
       - Ditch tools/lib/util/abspath.c, its only exported function was used at just
         one place and can be replaced by libc's realpath() (Arnaldo Carvalho de Melo)
      
       - Use strerror_r() in the llvm infrastructure, tread safe, its what is used
         elsewhere in tools/perf/ (Arnaldo Carvalho de Melo)
      
      Cleanups:
      
       - Removed misplaced or needless __maybe_unused/export (Arnaldo Carvalho de Melo)
      Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      Signed-off-by: default avatarIngo Molnar <mingo@kernel.org>
      05f5ece7
    • Linus Torvalds's avatar
      Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net · aca04ce5
      Linus Torvalds authored
      Pull networking bugfixes from David Miller:
       "Several bug fixes rolling in, some for changes introduced in this
        merge window, and some for problems that have existed for some time:
      
        1) Fix prepare_to_wait() handling in AF_VSOCK, from Claudio Imbrenda.
      
        2) The new DST_CACHE should be a silent config option, from Dave
           Jones.
      
        3) inet_current_timestamp() unintentionally truncates timestamps to
           16-bit, from Deepa Dinamani.
      
        4) Missing reference to netns in ppp, from Guillaume Nault.
      
        5) Free memory reference in hv_netvsc driver, from Haiyang Zhang.
      
        6) Missing kernel doc documentation for function arguments in various
           spots around the networking, from Luis de Bethencourt.
      
        7) UDP stopped receiving broadcast packets properly, due to
           overzealous multicast checks, fix from Paolo Abeni"
      
      * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (59 commits)
        net: ping: make ping_v6_sendmsg static
        hv_netvsc: Fix the order of num_sc_offered decrement
        net: Fix typos and whitespace.
        hv_netvsc: Fix the array sizes to be max supported channels
        hv_netvsc: Fix accessing freed memory in netvsc_change_mtu()
        ppp: take reference on channels netns
        net: Reset encap_level to avoid resetting features on inner IP headers
        net: mediatek: fix checking for NULL instead of IS_ERR() in .probe
        net: phy: at803x: Request 'reset' GPIO only for AT8030 PHY
        at803x: fix reset handling
        AF_VSOCK: Shrink the area influenced by prepare_to_wait
        Revert "vsock: Fix blocking ops call in prepare_to_wait"
        macb: fix PHY reset
        ipv4: initialize flowi4_flags before calling fib_lookup()
        fsl/fman: Workaround for Errata A-007273
        ipv4: fix broadcast packets reception
        net: hns: bug fix about the overflow of mss
        net: hns: adds limitation for debug port mtu
        net: hns: fix the bug about mtu setting
        net: hns: fixes a bug of RSS
        ...
      aca04ce5
    • Haishuang Yan's avatar
      net: ping: make ping_v6_sendmsg static · 6579a023
      Haishuang Yan authored
      As ping_v6_sendmsg is used only in this file,
      making it static
      
      The body of "pingv6_prot" and "pingv6_protosw" were
      moved at the middle of the file, to avoid having to
      declare some static prototypes.
      Signed-off-by: default avatarHaishuang Yan <yanhaishuang@cmss.chinamobile.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      6579a023
    • Haiyang Zhang's avatar
      hv_netvsc: Fix the order of num_sc_offered decrement · 3f735131
      Haiyang Zhang authored
      Reorder the code in netvsc_sc_open(), so num_sc_offered is only decremented
      after vmbus_open() is called. This avoid pontential race of removing device
      before all channels are setup.
      Signed-off-by: default avatarHaiyang Zhang <haiyangz@microsoft.com>
      Reviewed-by: default avatarK. Y. Srinivasan <kys@microsoft.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      3f735131
    • Linus Torvalds's avatar
      Merge tag 'platform-drivers-x86-v4.6-1' of... · 5a010c73
      Linus Torvalds authored
      Merge tag 'platform-drivers-x86-v4.6-1' of git://git.infradead.org/users/dvhart/linux-platform-drivers-x86
      
      Pull x86 platform driver updates from Darren Hart:
       "Significant refactoring of Dell laptop drivers, modularizing the
        smbios code.  Multiple new platforms added for ideapad, asus, dell,
        and alienware using existing quirks.  A few fixes and cleanups.
      
        hp-wmi:
         - Remove GPS rfkill support via pre-2009 interface
         - fix unregister order in hp_wmi_rfkill_setup() once again
      
        ideapad-laptop:
         - Add ideapad Y700 (15) to the no_hw_rfkill DMI list
      
        fujitsu-laptop:
         - Support radio toggle button
      
        intel-hid:
         - allocate correct amount of memory for private struct
      
        platform/x86:
         - Make intel_scu_ipc explicitly non-modular
      
        intel_pmc_ipc:
         - Avoid pending IPC1 command during legacy suspend
         - Fix GCR register base address and length
      
        asus-nb-wmi:
         - add wapf=4 quirk for ASUS X75VD
      
        intel_telemetry_pltdrv:
         - Change verbosity control bits
      
        dell-rbtn:
         - Add a comment about the XPS 13 9350
      
        dell-wmi, dell-laptop:
         - depends DMI
      
        dell-wmi:
         - support Dell Inspiron M5110
         - properly process Dell Instant Launch hotkey
         - enable receiving WMI events on Dell Vostro V131
         - Support new hotkeys on the XPS 13 9350 (Skylake)
         - Clean up hotkey table size check
         - Stop storing pointers to DMI tables
      
        dell-laptop:
         - move dell_smi_error() to dell-smbios
         - use dell_smbios_find_token() instead of find_token_location()
         - use dell_smbios_find_token() instead of find_token_id()
         - extract SMBIOS-related code to a separate module
      
        dell-smbios:
         - rename dell_smi_error() to dell_smbios_error()
         - make da_tokens static
         - remove find_token_{id,location}()
         - implement new function for finding DMI table 0xDA tokens
         - make the SMBIOS buffer static
         - return the SMBIOS buffer from dell_smbios_get_buffer()
         - don't return an SMBIOS buffer from dell_smbios_send_request()
         - don't pass an SMBIOS buffer to dell_smbios_send_request()
         - rename dell_send_request() to dell_smbios_send_request()
         - rename release_buffer() to dell_smbios_release_buffer()
         - rename clear_buffer() to dell_smbios_clear_buffer()
         - rename get_buffer() to dell_smbios_get_buffer()
      
        dell-led:
         - use dell_smbios_send_request() for performing SMBIOS calls
         - use dell_smbios_find_token() for finding mic DMI tokens
      
        toshiba_acpi:
         - Add a module parameter to disable hotkeys registration
         - Add sysfs entries for the Cooling Method feature
         - Add support for cooling method feature
      
        Documentation/ABI:
         - Update sysfs-driver-toshiba_acpi file
      
        thinkpad_acpi:
         - Remove ambiguous logging for "Unsupported brightness interface"
      
        alienware-wmi:
         - whitespace improvements
         - Add support for two new systems: ASM200 and ASM201.
         - Add support for deep sleep control.
         - Add initial support for alienware graphics amplifier.
         - Add support for new platform: X51-R3
         - Clean up whitespace for ASM100 platform"
      
      * tag 'platform-drivers-x86-v4.6-1' of git://git.infradead.org/users/dvhart/linux-platform-drivers-x86: (47 commits)
        hp-wmi: Remove GPS rfkill support via pre-2009 interface
        hp-wmi: fix unregister order in hp_wmi_rfkill_setup() once again
        dell-wmi: support Dell Inspiron M5110
        dell-wmi: properly process Dell Instant Launch hotkey
        dell-wmi: enable receiving WMI events on Dell Vostro V131
        dell-smbios: rename dell_smi_error() to dell_smbios_error()
        dell-laptop: move dell_smi_error() to dell-smbios
        ideapad-laptop: Add ideapad Y700 (15) to the no_hw_rfkill DMI list
        fujitsu-laptop: Support radio toggle button
        intel-hid: allocate correct amount of memory for private struct
        platform/x86: Make intel_scu_ipc explicitly non-modular
        intel_pmc_ipc: Avoid pending IPC1 command during legacy suspend
        intel_pmc_ipc: Fix GCR register base address and length
        asus-nb-wmi: add wapf=4 quirk for ASUS X75VD
        intel_telemetry_pltdrv: Change verbosity control bits
        dell-rbtn: Add a comment about the XPS 13 9350
        dell-wmi: Support new hotkeys on the XPS 13 9350 (Skylake)
        dell-wmi: Clean up hotkey table size check
        dell-wmi, dell-laptop: depends DMI
        dell-wmi: Stop storing pointers to DMI tables
        ...
      5a010c73
    • Linus Torvalds's avatar
      Merge tag 'pwm/for-4.6-rc1' of... · b615d3d4
      Linus Torvalds authored
      Merge tag 'pwm/for-4.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm
      
      Pull pwm updates from Thierry Reding:
       "No new drivers this time around, but a handful of cleanups and fixes"
      
      * tag 'pwm/for-4.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm:
        pwm: omap-dmtimer: Add debug message for effective period and duty cycle
        pwm: omap-dmtimer: Round load and match values rather than truncate
        pwm: omap-dmtimer: Add sanity checking for load and match values
        pwm: omap-dmtimer: Fix inaccurate period and duty cycle calculations
        pwm: brcmstb: Fix check of devm_ioremap_resource() return code
        pwm: rcar: Depend on ARCH_RENESAS instead of ARCH_SHMOBILE
        pwm: lpc18xx-sct: Test clock rate to avoid division by 0
        pwm: img: Test clock rate to avoid division by 0
      b615d3d4
  3. 23 Mar, 2016 11 commits
    • Linus Torvalds's avatar
      Merge branch 'for-next-merge' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending · ed7d6bc2
      Linus Torvalds authored
      Pull more SCSI target updates from Nicholas Bellinger:
       "This series contains cxgb4 driver prerequisites for supporting iscsi
        segmentation offload (ISO), that will be utilized for a number of
        future v4.7 developments in iscsi-target for supporting generic hw
        offloads"
      
      * 'for-next-merge' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending:
        cxgb4: update Kconfig and Makefile
        cxgb4: add iSCSI DDP page pod manager
        cxgb4, iw_cxgb4: move delayed ack macro definitions
        cxgb4: move VLAN_NONE macro definition
        cxgb4: update struct cxgb4_lld_info definition
        cxgb4: add definitions for iSCSI target ULD
        cxgb4, cxgb4i: move struct cpl_rx_data_ddp definition
        cxgb4, iw_cxgb4, cxgb4i: remove duplicate definitions
        cxgb4, iw_cxgb4: move definitions to common header file
        cxgb4: large receive offload support
        cxgb4: allocate resources for CXGB4_ULD_ISCSIT
        cxgb4: add new ULD type CXGB4_ULD_ISCSIT
      ed7d6bc2
    • Arnaldo Carvalho de Melo's avatar
      perf llvm: Use strerror_r instead of the thread unsafe strerror one · 76267147
      Arnaldo Carvalho de Melo authored
      Cc: Adrian Hunter <adrian.hunter@intel.com>
      Cc: Jiri Olsa <jolsa@kernel.org>
      Cc: Namhyung Kim <namhyung@kernel.org>
      Cc: Wang Nan <wangnan0@huawei.com>
      Link: http://lkml.kernel.org/n/tip-5njrq9dltckgm624omw9ljgu@git.kernel.orgSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      76267147
    • Arnaldo Carvalho de Melo's avatar
      perf llvm: Use realpath to canonicalize paths · 78478269
      Arnaldo Carvalho de Melo authored
      To kill the last user of make_nonrelative_path(), that gets ditched,
      one more panicking function killed.
      
      Cc: Adrian Hunter <adrian.hunter@intel.com>
      Cc: Jiri Olsa <jolsa@kernel.org>
      Cc: Namhyung Kim <namhyung@kernel.org>
      Cc: Wang Nan <wangnan0@huawei.com>
      Link: http://lkml.kernel.org/n/tip-3hu56rvyh4q5gxogovb6ko8a@git.kernel.orgSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      78478269
    • Arnaldo Carvalho de Melo's avatar
      perf tools: Unexport some methods unused outside strbuf.c · 0741208a
      Arnaldo Carvalho de Melo authored
      Cc: Adrian Hunter <adrian.hunter@intel.com>
      Cc: Jiri Olsa <jolsa@kernel.org>
      Cc: Namhyung Kim <namhyung@kernel.org>
      Cc: Wang Nan <wangnan0@huawei.com>
      Link: http://lkml.kernel.org/n/tip-nq1wvtky4mpu0nupjyar7sbw@git.kernel.orgSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      0741208a
    • Arnaldo Carvalho de Melo's avatar
      perf probe: No need to use formatting strbuf method · 88fd633c
      Arnaldo Carvalho de Melo authored
      We have addch() for chars, add() for fixed size data, and addstr() for
      variable length strings, use them.
      
      Cc: Adrian Hunter <adrian.hunter@intel.com>
      Cc: Jiri Olsa <jolsa@kernel.org>
      Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
      Cc: Namhyung Kim <namhyung@kernel.org>
      Cc: Wang Nan <wangnan0@huawei.com>
      Link: http://lkml.kernel.org/n/tip-0ap02fn2xtvpduj2j6b2o1j4@git.kernel.orgSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      88fd633c
    • Arnaldo Carvalho de Melo's avatar
      perf help: Use asprintf instead of adhoc equivalents · a610f5cb
      Arnaldo Carvalho de Melo authored
      That doesn't chekcs malloc return and that, when using strbuf, if it
      can't grow, just explodes away via die().
      
      Cc: Adrian Hunter <adrian.hunter@intel.com>
      Cc: Jiri Olsa <jolsa@kernel.org>
      Cc: Namhyung Kim <namhyung@kernel.org>
      Cc: Wang Nan <wangnan0@huawei.com>
      Link: http://lkml.kernel.org/n/tip-vr8qsjbwub7e892hpa9msz95@git.kernel.orgSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      a610f5cb
    • Bjorn Helgaas's avatar
      net: Fix typos and whitespace. · 5e82b4b2
      Bjorn Helgaas authored
      Fix typos.  Capitalize CPU, NAPI, RCU consistently.  Align structure
      indentation.  No functional change intended; only comment and whitespace
      changes.
      Signed-off-by: default avatarBjorn Helgaas <bhelgaas@google.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      5e82b4b2
    • Haiyang Zhang's avatar
      hv_netvsc: Fix the array sizes to be max supported channels · 9efc2f7d
      Haiyang Zhang authored
      The VRSS_CHANNEL_MAX is the max number of channels supported by Hyper-V
      hosts. We use it for the related array sizes instead of using NR_CPUS,
      which may be set to several thousands.
      This patch reduces possible memory allocation failures.
      Signed-off-by: default avatarHaiyang Zhang <haiyangz@microsoft.com>
      Reviewed-by: default avatarK. Y. Srinivasan <kys@microsoft.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      9efc2f7d
    • Haiyang Zhang's avatar
      hv_netvsc: Fix accessing freed memory in netvsc_change_mtu() · d212b463
      Haiyang Zhang authored
      struct netvsc_device is freed in rndis_filter_device_remove(). So we save
      the nvdev->num_chn into a temp variable for later usage.
      
      (Please also include this patch into stable branch.)
      Signed-off-by: default avatarHaiyang Zhang <haiyangz@microsoft.com>
      Reviewed-by: default avatarK. Y. Srinivasan <kys@microsoft.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      d212b463
    • Guillaume Nault's avatar
      ppp: take reference on channels netns · 1f461dcd
      Guillaume Nault authored
      Let channels hold a reference on their network namespace.
      Some channel types, like ppp_async and ppp_synctty, can have their
      userspace controller running in a different namespace. Therefore they
      can't rely on them to preclude their netns from being removed from
      under them.
      
      ==================================================================
      BUG: KASAN: use-after-free in ppp_unregister_channel+0x372/0x3a0 at
      addr ffff880064e217e0
      Read of size 8 by task syz-executor/11581
      =============================================================================
      BUG net_namespace (Not tainted): kasan: bad access detected
      -----------------------------------------------------------------------------
      
      Disabling lock debugging due to kernel taint
      INFO: Allocated in copy_net_ns+0x6b/0x1a0 age=92569 cpu=3 pid=6906
      [<      none      >] ___slab_alloc+0x4c7/0x500 kernel/mm/slub.c:2440
      [<      none      >] __slab_alloc+0x4c/0x90 kernel/mm/slub.c:2469
      [<     inline     >] slab_alloc_node kernel/mm/slub.c:2532
      [<     inline     >] slab_alloc kernel/mm/slub.c:2574
      [<      none      >] kmem_cache_alloc+0x23a/0x2b0 kernel/mm/slub.c:2579
      [<     inline     >] kmem_cache_zalloc kernel/include/linux/slab.h:597
      [<     inline     >] net_alloc kernel/net/core/net_namespace.c:325
      [<      none      >] copy_net_ns+0x6b/0x1a0 kernel/net/core/net_namespace.c:360
      [<      none      >] create_new_namespaces+0x2f6/0x610 kernel/kernel/nsproxy.c:95
      [<      none      >] copy_namespaces+0x297/0x320 kernel/kernel/nsproxy.c:150
      [<      none      >] copy_process.part.35+0x1bf4/0x5760 kernel/kernel/fork.c:1451
      [<     inline     >] copy_process kernel/kernel/fork.c:1274
      [<      none      >] _do_fork+0x1bc/0xcb0 kernel/kernel/fork.c:1723
      [<     inline     >] SYSC_clone kernel/kernel/fork.c:1832
      [<      none      >] SyS_clone+0x37/0x50 kernel/kernel/fork.c:1826
      [<      none      >] entry_SYSCALL_64_fastpath+0x16/0x7a kernel/arch/x86/entry/entry_64.S:185
      
      INFO: Freed in net_drop_ns+0x67/0x80 age=575 cpu=2 pid=2631
      [<      none      >] __slab_free+0x1fc/0x320 kernel/mm/slub.c:2650
      [<     inline     >] slab_free kernel/mm/slub.c:2805
      [<      none      >] kmem_cache_free+0x2a0/0x330 kernel/mm/slub.c:2814
      [<     inline     >] net_free kernel/net/core/net_namespace.c:341
      [<      none      >] net_drop_ns+0x67/0x80 kernel/net/core/net_namespace.c:348
      [<      none      >] cleanup_net+0x4e5/0x600 kernel/net/core/net_namespace.c:448
      [<      none      >] process_one_work+0x794/0x1440 kernel/kernel/workqueue.c:2036
      [<      none      >] worker_thread+0xdb/0xfc0 kernel/kernel/workqueue.c:2170
      [<      none      >] kthread+0x23f/0x2d0 kernel/drivers/block/aoe/aoecmd.c:1303
      [<      none      >] ret_from_fork+0x3f/0x70 kernel/arch/x86/entry/entry_64.S:468
      INFO: Slab 0xffffea0001938800 objects=3 used=0 fp=0xffff880064e20000
      flags=0x5fffc0000004080
      INFO: Object 0xffff880064e20000 @offset=0 fp=0xffff880064e24200
      
      CPU: 1 PID: 11581 Comm: syz-executor Tainted: G    B           4.4.0+
      Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS
      rel-1.8.2-0-g33fbe13 by qemu-project.org 04/01/2014
       00000000ffffffff ffff8800662c7790 ffffffff8292049d ffff88003e36a300
       ffff880064e20000 ffff880064e20000 ffff8800662c77c0 ffffffff816f2054
       ffff88003e36a300 ffffea0001938800 ffff880064e20000 0000000000000000
      Call Trace:
       [<     inline     >] __dump_stack kernel/lib/dump_stack.c:15
       [<ffffffff8292049d>] dump_stack+0x6f/0xa2 kernel/lib/dump_stack.c:50
       [<ffffffff816f2054>] print_trailer+0xf4/0x150 kernel/mm/slub.c:654
       [<ffffffff816f875f>] object_err+0x2f/0x40 kernel/mm/slub.c:661
       [<     inline     >] print_address_description kernel/mm/kasan/report.c:138
       [<ffffffff816fb0c5>] kasan_report_error+0x215/0x530 kernel/mm/kasan/report.c:236
       [<     inline     >] kasan_report kernel/mm/kasan/report.c:259
       [<ffffffff816fb4de>] __asan_report_load8_noabort+0x3e/0x40 kernel/mm/kasan/report.c:280
       [<     inline     >] ? ppp_pernet kernel/include/linux/compiler.h:218
       [<ffffffff83ad71b2>] ? ppp_unregister_channel+0x372/0x3a0 kernel/drivers/net/ppp/ppp_generic.c:2392
       [<     inline     >] ppp_pernet kernel/include/linux/compiler.h:218
       [<ffffffff83ad71b2>] ppp_unregister_channel+0x372/0x3a0 kernel/drivers/net/ppp/ppp_generic.c:2392
       [<     inline     >] ? ppp_pernet kernel/drivers/net/ppp/ppp_generic.c:293
       [<ffffffff83ad6f26>] ? ppp_unregister_channel+0xe6/0x3a0 kernel/drivers/net/ppp/ppp_generic.c:2392
       [<ffffffff83ae18f3>] ppp_asynctty_close+0xa3/0x130 kernel/drivers/net/ppp/ppp_async.c:241
       [<ffffffff83ae1850>] ? async_lcp_peek+0x5b0/0x5b0 kernel/drivers/net/ppp/ppp_async.c:1000
       [<ffffffff82c33239>] tty_ldisc_close.isra.1+0x99/0xe0 kernel/drivers/tty/tty_ldisc.c:478
       [<ffffffff82c332c0>] tty_ldisc_kill+0x40/0x170 kernel/drivers/tty/tty_ldisc.c:744
       [<ffffffff82c34943>] tty_ldisc_release+0x1b3/0x260 kernel/drivers/tty/tty_ldisc.c:772
       [<ffffffff82c1ef21>] tty_release+0xac1/0x13e0 kernel/drivers/tty/tty_io.c:1901
       [<ffffffff82c1e460>] ? release_tty+0x320/0x320 kernel/drivers/tty/tty_io.c:1688
       [<ffffffff8174de36>] __fput+0x236/0x780 kernel/fs/file_table.c:208
       [<ffffffff8174e405>] ____fput+0x15/0x20 kernel/fs/file_table.c:244
       [<ffffffff813595ab>] task_work_run+0x16b/0x200 kernel/kernel/task_work.c:115
       [<     inline     >] exit_task_work kernel/include/linux/task_work.h:21
       [<ffffffff81307105>] do_exit+0x8b5/0x2c60 kernel/kernel/exit.c:750
       [<ffffffff813fdd20>] ? debug_check_no_locks_freed+0x290/0x290 kernel/kernel/locking/lockdep.c:4123
       [<ffffffff81306850>] ? mm_update_next_owner+0x6f0/0x6f0 kernel/kernel/exit.c:357
       [<ffffffff813215e6>] ? __dequeue_signal+0x136/0x470 kernel/kernel/signal.c:550
       [<ffffffff8132067b>] ? recalc_sigpending_tsk+0x13b/0x180 kernel/kernel/signal.c:145
       [<ffffffff81309628>] do_group_exit+0x108/0x330 kernel/kernel/exit.c:880
       [<ffffffff8132b9d4>] get_signal+0x5e4/0x14f0 kernel/kernel/signal.c:2307
       [<     inline     >] ? kretprobe_table_lock kernel/kernel/kprobes.c:1113
       [<ffffffff8151d355>] ? kprobe_flush_task+0xb5/0x450 kernel/kernel/kprobes.c:1158
       [<ffffffff8115f7d3>] do_signal+0x83/0x1c90 kernel/arch/x86/kernel/signal.c:712
       [<ffffffff8151d2a0>] ? recycle_rp_inst+0x310/0x310 kernel/include/linux/list.h:655
       [<ffffffff8115f750>] ? setup_sigcontext+0x780/0x780 kernel/arch/x86/kernel/signal.c:165
       [<ffffffff81380864>] ? finish_task_switch+0x424/0x5f0 kernel/kernel/sched/core.c:2692
       [<     inline     >] ? finish_lock_switch kernel/kernel/sched/sched.h:1099
       [<ffffffff81380560>] ? finish_task_switch+0x120/0x5f0 kernel/kernel/sched/core.c:2678
       [<     inline     >] ? context_switch kernel/kernel/sched/core.c:2807
       [<ffffffff85d794e9>] ? __schedule+0x919/0x1bd0 kernel/kernel/sched/core.c:3283
       [<ffffffff81003901>] exit_to_usermode_loop+0xf1/0x1a0 kernel/arch/x86/entry/common.c:247
       [<     inline     >] prepare_exit_to_usermode kernel/arch/x86/entry/common.c:282
       [<ffffffff810062ef>] syscall_return_slowpath+0x19f/0x210 kernel/arch/x86/entry/common.c:344
       [<ffffffff85d88022>] int_ret_from_sys_call+0x25/0x9f kernel/arch/x86/entry/entry_64.S:281
      Memory state around the buggy address:
       ffff880064e21680: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
       ffff880064e21700: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
      >ffff880064e21780: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                                                             ^
       ffff880064e21800: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
       ffff880064e21880: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
      ==================================================================
      
      Fixes: 273ec51d ("net: ppp_generic - introduce net-namespace functionality v2")
      Reported-by: default avatarBaozeng Ding <sploving1@gmail.com>
      Signed-off-by: default avatarGuillaume Nault <g.nault@alphalink.fr>
      Reviewed-by: default avatarCyrill Gorcunov <gorcunov@openvz.org>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      1f461dcd
    • Arnaldo Carvalho de Melo's avatar
      perf tools: Remove unused perf_pathdup, xstrdup functions · cf47a8ae
      Arnaldo Carvalho de Melo authored
      Cc: Adrian Hunter <adrian.hunter@intel.com>
      Cc: Jiri Olsa <jolsa@kernel.org>
      Cc: Namhyung Kim <namhyung@kernel.org>
      Cc: Wang Nan <wangnan0@huawei.com>
      Link: http://lkml.kernel.org/n/tip-s87zi5d03m6rz622y1z6rlsa@git.kernel.orgSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      cf47a8ae