1. 26 Jan, 2017 1 commit
  2. 25 Jan, 2017 1 commit
    • Hans de Goede's avatar
      Revert "ACPI / video: Add force_native quirk for HP Pavilion dv6" · fd25ea29
      Hans de Goede authored
      Revert commit 6276e53f (ACPI / video: Add force_native quirk for
      HP Pavilion dv6).
      
      In the commit message for the quirk this revert removes I wrote:
      
      "Note that there are quite a few HP Pavilion dv6 variants, some
      woth ATI and some with NVIDIA hybrid gfx, both seem to need this
      quirk to have working backlight control. There are also some versions
      with only Intel integrated gfx, these may not need this quirk, but it
      should not hurt there."
      
      Unfortunately that seems wrong, I've already received 2 reports of
      this commit causing regressions on some dv6 variants (at least one
      of which actually has a nvidia GPU). So it seems that HP has made a
      mess here by using the same model-name both in marketing and in the
      DMI data for many different variants. Some of which need
      acpi_backlight=native for functional backlight control (as the
      quirk this commit reverts was doing), where as others are broken by
      it. So lets get back to the old sitation so as to avoid regressing
      on models which used to work without any kernel cmdline arguments
      before.
      
      Fixes: 6276e53f (ACPI / video: Add force_native quirk for HP Pavilion dv6)
      Signed-off-by: default avatarHans de Goede <hdegoede@redhat.com>
      Signed-off-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
      fd25ea29
  3. 22 Jan, 2017 10 commits
    • Linus Torvalds's avatar
      Linux 4.10-rc5 · 7a308bb3
      Linus Torvalds authored
      7a308bb3
    • Linus Torvalds's avatar
      Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 095cbe66
      Linus Torvalds authored
      Pull x86 fix from Thomas Gleixner:
       "Restore the retrigger callbacks in the IO APIC irq chips. That
        addresses a long standing regression which got introduced with the
        rewrite of the x86 irq subsystem two years ago and went unnoticed so
        far"
      
      * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        x86/ioapic: Restore IO-APIC irq_chip retrigger callback
      095cbe66
    • Linus Torvalds's avatar
      Merge branch 'smp-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 24b86839
      Linus Torvalds authored
      Pull smp/hotplug fix from Thomas Gleixner:
       "Remove an unused variable which is a leftover from the notifier
        removal"
      
      * 'smp-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        cpu/hotplug: Remove unused but set variable in _cpu_down()
      24b86839
    • Linus Torvalds's avatar
      Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost · 585457fc
      Linus Torvalds authored
      Pull virtio/vhost fixes from Michael Tsirkin:
       "Random fixes and cleanups that accumulated over the time"
      
      * tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost:
        virtio/s390: virtio: constify virtio_config_ops structures
        virtio/s390: add missing \n to end of dev_err message
        virtio/s390: support READ_STATUS command for virtio-ccw
        tools/virtio/ringtest: tweaks for s390
        tools/virtio/ringtest: fix run-on-all.sh for offline cpus
        virtio_console: fix a crash in config_work_handler
        vhost/scsi: silence uninitialized variable warning
        vhost: scsi: constify target_core_fabric_ops structures
      585457fc
    • Linus Torvalds's avatar
      Merge branch 'for-rc' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux · bb6c01c2
      Linus Torvalds authored
      Pull thermal management fixes from Zhang Rui:
      
       - fix a regression that thermal zone dynamically allocated sysfs
         attributes are freed before they're removed, which is introduced in
         4.10-rc1 (Jacob von Chorus)
      
       - fix a boot warning because deprecated hwmon API is used (Fabio
         Estevam)
      
       - a couple of fixes for rockchip thermal driver (Brian Norris, Caesar
         Wang)
      
      * 'for-rc' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux:
        thermal: rockchip: fixes the conversion table
        thermal: core: move tz->device.groups cleanup to thermal_release
        thermal: thermal_hwmon: Convert to hwmon_device_register_with_info()
        thermal: rockchip: handle set_trips without the trip points
        thermal: rockchip: optimize the conversion table
        thermal: rockchip: fixes invalid temperature case
        thermal: rockchip: don't pass table structs by value
        thermal: rockchip: improve conversion error messages
      bb6c01c2
    • Linus Torvalds's avatar
      Merge tag 'usb-4.10-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb · c497f8d1
      Linus Torvalds authored
      Pull USB fixes from Greg KH:
       "Here are a few small USB fixes for 4.10-rc5.
      
        Most of these are gadget/dwc2 fixes for reported issues, all of these
        have been in linux-next for a while. The last one is a single xhci
        WARN_ON removal to handle an issue that the dwc3 driver is hitting in
        the 4.10-rc tree. The warning is harmless and needs to be removed, and
        a "real" fix that is more complex will show up in 4.11-rc1 for this
        device.
      
        That last patch hasn't been in linux-next yet due to the weekend
        timing, but it's a "simple" WARN_ON() removal so what could go wrong?
        :)"
      
      Famous last words.
      
      * tag 'usb-4.10-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
        xhci: remove WARN_ON if dma mask is not set for platform devices
        usb: dwc2: host: fix Wmaybe-uninitialized warning
        usb: dwc2: gadget: Fix GUSBCFG.USBTRDTIM value
        usb: gadget: udc: atmel: remove memory leak
        usb: dwc3: exynos fix axius clock error path to do cleanup
        usb: dwc2: Avoid suspending if we're in gadget mode
        usb: dwc2: use u32 for DT binding parameters
        usb: gadget: f_fs: Fix iterations on endpoints.
        usb: dwc2: gadget: Fix DMA memory freeing
        usb: gadget: composite: Fix function used to free memory
      c497f8d1
    • Linus Torvalds's avatar
      Merge branch 'libnvdimm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm · f68d8531
      Linus Torvalds authored
      Pull libnvdimm fixes from Dan Williams:
       "Two fixes:
      
         - a regression fix for the multiple-pmem-namespace-per-region support
           added in 4.9. Even if an existing environment is not using that
           feature the act of creating and a destroying a single namespace
           with the ndctl utility will lead to the proliferation of extra
           unwanted namespace devices.
      
         - a fix for the error code returned from the pmem driver when the
           memcpy_mcsafe() routine returns -EFAULT. Btrfs seems to be the only
           block I/O consumer that tries to parse the meaning of the error
           code when it is non-zero.
      
        Neither of these fixes are critical, the namespace leak is awkward in
        that it can cause device naming to change and complicates debugging
        namespace initialization issues. The error code fix is included out of
        caution for what other consumers might be expecting -EIO for block I/O
        errors"
      
      * 'libnvdimm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
        libnvdimm, namespace: fix pmem namespace leak, delete when size set to zero
        pmem: return EIO on read_pmem() failure
      f68d8531
    • Linus Torvalds's avatar
      Merge tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux · f5e8c0ff
      Linus Torvalds authored
      Pull clk fix from Stephen Boyd:
       "One fix for Samsung Exynos524x SoCs where recent IOMMU patches have
        caused some of these clocks to turn off when they were always left on
        before"
      
      * tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux:
        clk/samsung: exynos542x: mark some clocks as critical
      f5e8c0ff
    • Linus Torvalds's avatar
      Merge tag 'arc-4.10-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc · 455a70cb
      Linus Torvalds authored
      Pull ARC fixes from Vineet Gupta:
      
       - more intc updates [Yuriv]
      
       - fix module build when unwinder is turned off
      
       - IO Coherency Programming model updates
      
       - other miscellaneous
      
      * tag 'arc-4.10-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc:
        ARC: Revert "ARC: mm: IOC: Don't enable IOC by default"
        ARC: mm: split arc_cache_init to allow __init reaping of bulk
        ARCv2: IOC: Use actual memory size to setup aperture size
        ARCv2: IOC: Adhere to progamming model guidelines to avoid DMA corruption
        ARCv2: IOC: refactor the IOC and SLC operations into own functions
        ARC: module: Fix !CONFIG_ARC_DW2_UNWIND builds
        ARCv2: save r30 on kernel entry as gcc uses it for code-gen
        ARCv2: IRQ: Call entry/exit functions for chained handlers in MCIP
        ARC: IRQ: Use hwirq instead of virq in mask/unmask
        ARC: mmu: clarify the MMUv3 programming model
      455a70cb
    • Linus Torvalds's avatar
      Merge tag 'powerpc-4.10-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux · 83fd57a7
      Linus Torvalds authored
      Pull powerpc fixes from Michael Ellerman:
       "Two fixes for fallout from the hugetlb changes we merged this cycle.
      
        Ten other fixes, four only affect Power9, and the rest are a bit of a
        mixture though nothing terrible.
      
        Thanks to: Aneesh Kumar K.V, Anton Blanchard, Benjamin Herrenschmidt,
        Dave Martin, Gavin Shan, Madhavan Srinivasan, Nicholas Piggin, Reza
        Arbab"
      
      * tag 'powerpc-4.10-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
        powerpc: Ignore reserved field in DCSR and PVR reads and writes
        powerpc/ptrace: Preserve previous TM fprs/vsrs on short regset write
        powerpc/ptrace: Preserve previous fprs/vsrs on short regset write
        powerpc/perf: Use MSR to report privilege level on P9 DD1
        selftest/powerpc: Wrong PMC initialized in pmc56_overflow test
        powerpc/eeh: Enable IO path on permanent error
        powerpc/perf: Fix PM_BRU_CMPL event code for power9
        powerpc/mm: Fix little-endian 4K hugetlb
        powerpc/mm/hugetlb: Don't panic when we don't find the default huge page size
        powerpc: Fix pgtable pmd cache init
        powerpc/icp-opal: Fix missing KVM case and harden replay
        powerpc/mm: Fix memory hotplug BUG() on radix
      83fd57a7
  4. 20 Jan, 2017 20 commits
    • Linus Torvalds's avatar
      Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm · 4c9eff7a
      Linus Torvalds authored
      Pull KVM fixes from Radim Krčmář:
       "ARM:
         - Fix for timer setup on VHE machines
         - Drop spurious warning when the timer races against the vcpu running
           again
         - Prevent a vgic deadlock when the initialization fails (for stable)
      
        s390:
         - Fix a kernel memory exposure (for stable)
      
        x86:
         - Fix exception injection when hypercall instruction cannot be
           patched"
      
      * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
        KVM: s390: do not expose random data via facility bitmap
        KVM: x86: fix fixing of hypercalls
        KVM: arm/arm64: vgic: Fix deadlock on error handling
        KVM: arm64: Access CNTHCTL_EL2 bit fields correctly on VHE systems
        KVM: arm/arm64: Fix occasional warning from the timer work function
      4c9eff7a
    • Linus Torvalds's avatar
      Merge branch 'scsi-target-for-v4.10' of... · 51162264
      Linus Torvalds authored
      Merge branch 'scsi-target-for-v4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/bvanassche/linux
      
      Pull SCSI target fixes from Bart Van Assche:
      
       - two small fixes for the ibmvscsis driver
      
       - ten patches with bug fixes for the target mode of the qla2xxx driver
      
       - four patches that avoid that the "sparse" and "smatch" static
         analyzer tools report false positives for the qla2xxx code base
      
      * 'scsi-target-for-v4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/bvanassche/linux:
        qla2xxx: Disable out-of-order processing by default in firmware
        qla2xxx: Fix erroneous invalid handle message
        qla2xxx: Reduce exess wait during chip reset
        qla2xxx: Terminate exchange if corrupted
        qla2xxx: Fix crash due to null pointer access
        qla2xxx: Collect additional information to debug fw dump
        qla2xxx: Reset reserved field in firmware options to 0
        qla2xxx: Set tcm_qla2xxx version to automatically track qla2xxx version
        qla2xxx: Include ATIO queue in firmware dump when in target mode
        qla2xxx: Fix wrong IOCB type assumption
        qla2xxx: Avoid that building with W=1 triggers complaints about set-but-not-used variables
        qla2xxx: Move two arrays from header files to .c files
        qla2xxx: Declare an array with file scope static
        qla2xxx: Fix indentation
        ibmvscsis: Fix sleeping in interrupt context
        ibmvscsis: Fix max transfer length
      51162264
    • Linus Torvalds's avatar
      Merge branch 'for-linus' of git://git.kernel.dk/linux-block · e3737b91
      Linus Torvalds authored
      Pull block fixes from Jens Axboe:
       "Just two small fixes for this -rc.
      
        One is just killing an unused variable from Keith, but the other
        fixes a performance regression for nbd in this series, where we
        inadvertently flipped when we set MSG_MORE when outputting data"
      
      * 'for-linus' of git://git.kernel.dk/linux-block:
        nbd: only set MSG_MORE when we have more to send
        blk-mq: Remove unused variable
      e3737b91
    • Linus Torvalds's avatar
      Merge tag 'spi-fix-v4.10-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi · cca112ec
      Linus Torvalds authored
      Pull spi fixes from Mark Brown:
       "The usual small smattering of driver specific fixes. A few bits that
        stand out here:
      
         - the R-Car patches adding fallbacks are just adding new compatible
           strings to the driver so that device trees are written in a more
           robustly future proof fashion, this isn't strictly a fix but it's
           just new IDs and it's better to get it into mainline sooner to
           improve the ABI
      
         - the DesignWare "switch to new API part 2" patch is actually a
           misleadingly titled fix for a bit that got missed in the original
           conversion"
      
      * tag 'spi-fix-v4.10-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi:
        spi: davinci: use dma_mapping_error()
        spi: spi-axi: Free resources on error path
        spi: pxa2xx: add missed break
        spi: dw-mid: switch to new dmaengine_terminate_* API (part 2)
        spi: dw: Make debugfs name unique between instances
        spi: sh-msiof: Do not use C++ style comment
        spi: armada-3700: Set mode bits correctly
        spi: armada-3700: fix unsigned compare than zero on irq
        spi: sh-msiof: Add R-Car Gen 2 and 3 fallback bindings
        spi: SPI_FSL_DSPI should depend on HAS_DMA
      cca112ec
    • Linus Torvalds's avatar
      Merge tag 'ceph-for-4.10-rc5' of git://github.com/ceph/ceph-client · e90665a5
      Linus Torvalds authored
      Pull ceph fixes from Ilya Dryomov:
       "Three filesystem endianness fixes (one goes back to the 2.6 era, all
        marked for stable) and two fixups for this merge window's patches"
      
      * tag 'ceph-for-4.10-rc5' of git://github.com/ceph/ceph-client:
        ceph: fix bad endianness handling in parse_reply_info_extra
        ceph: fix endianness bug in frag_tree_split_cmp
        ceph: fix endianness of getattr mask in ceph_d_revalidate
        libceph: make sure ceph_aes_crypt() IV is aligned
        ceph: fix ceph_get_caps() interruption
      e90665a5
    • Linus Torvalds's avatar
      Merge branch 'overlayfs-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs · 56ef1882
      Linus Torvalds authored
      Pull overlayfs fix from Miklos Szeredi:
       "This fixes a regression introduced in this cycle"
      
      * 'overlayfs-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs:
        ovl: fix possible use after free on redirect dir lookup
      56ef1882
    • Linus Torvalds's avatar
      Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse · eefa9feb
      Linus Torvalds authored
      Pull fuse fixes from Miklos Szeredi:
       "Fix two regressions, one introduced in 4.9 and a less recent one in
        4.2"
      
      * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse:
        fuse: fix time_to_jiffies nsec sanity check
        fuse: clear FR_PENDING flag when moving requests out of pending queue
      eefa9feb
    • Linus Torvalds's avatar
      Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi · f09ff1de
      Linus Torvalds authored
      Pull SCSI fixes from James Bottomley:
       "This is a set of 12 fixes including the mpt3sas one that was causing
        hangs on ATA passthrough.
      
        The others are a couple of zoned block device fixes, a SAS device
        detection bug which lead to SATA drives not being matched to bays, two
        qla2xxx MSI fixes, a qla2xxx req for rsp confusion caused by cut and
        paste, and a few other minor fixes"
      
      * tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
        scsi: mpt3sas: fix hang on ata passthrough commands
        scsi: lpfc: Set elsiocb contexts to NULL after freeing it
        scsi: sd: Ignore zoned field for host-managed devices
        scsi: sd: Fix wrong DPOFUA disable in sd_read_cache_type
        scsi: bfa: fix wrongly initialized variable in bfad_im_bsg_els_ct_request()
        scsi: ses: Fix SAS device detection in enclosure
        scsi: libfc: Fix variable name in fc_set_wwpn
        scsi: lpfc: avoid double free of resource identifiers
        scsi: qla2xxx: remove irq_affinity_notifier
        scsi: qla2xxx: fix MSI-X vector affinity
        scsi: qla2xxx: Fix apparent cut-n-paste error.
        scsi: qla2xxx: Get mutex lock before checking optrom_state
      f09ff1de
    • Linus Torvalds's avatar
      Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux · f8f2d4bd
      Linus Torvalds authored
      Pull arm64 fixes from Catalin Marinas:
      
       - avoid potential stack information leak via the ptrace ABI caused by
         uninitialised variables
      
       - SWIOTLB DMA API fall-back allocation fix when the SWIOTLB buffer is
         not initialised (all RAM is suitable for 32-bit DMA masks)
      
       - fix the bad_mode function returning for unhandled exceptions coming
         from user space
      
       - fix name clash in __page_to_voff()
      
      * tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
        arm64: avoid returning from bad_mode
        arm64/ptrace: Reject attempts to set incomplete hardware breakpoint fields
        arm64/ptrace: Avoid uninitialised struct padding in fpr_set()
        arm64/ptrace: Preserve previous registers for short regset write
        arm64/ptrace: Preserve previous registers for short regset write
        arm64/ptrace: Preserve previous registers for short regset write
        arm64: mm: avoid name clash in __page_to_voff()
        arm64: Fix swiotlb fallback allocation
      f8f2d4bd
    • Radim Krčmář's avatar
      Merge tag 'kvm-s390-master-4.10-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kvms390/linux · fec96901
      Radim Krčmář authored
      KVM: s390: Fix for 4.10 (via kvm/master)
      
      Fix a kernel memory exposure.
      fec96901
    • Christian Borntraeger's avatar
      KVM: s390: do not expose random data via facility bitmap · 04478197
      Christian Borntraeger authored
      kvm_s390_get_machine() populates the facility bitmap by copying bytes
      from the host results that are stored in a 256 byte array in the prefix
      page. The KVM code does use the size of the target buffer (2k), thus
      copying and exposing unrelated kernel memory (mostly machine check
      related logout data).
      
      Let's use the size of the source buffer instead.  This is ok, as the
      target buffer will always be greater or equal than the source buffer as
      the KVM internal buffers (and thus S390_ARCH_FAC_LIST_SIZE_BYTE) cover
      the maximum possible size that is allowed by STFLE, which is 256
      doublewords. All structures are zero allocated so we can leave bytes
      256-2047 unchanged.
      
      Add a similar fix for kvm_arch_init_vm().
      Reported-by: default avatarHeiko Carstens <heiko.carstens@de.ibm.com>
      [found with smatch]
      Signed-off-by: default avatarChristian Borntraeger <borntraeger@de.ibm.com>
      CC: stable@vger.kernel.org
      Acked-by: default avatarCornelia Huck <cornelia.huck@de.ibm.com>
      04478197
    • Mathias Nyman's avatar
      xhci: remove WARN_ON if dma mask is not set for platform devices · 488dc164
      Mathias Nyman authored
      The warn on is a bit too much, we will anyway set the dma mask if not set
      previously.
      
      The main reason for this fix is that 4.10-rc1  has a dwc3 change that
      pass a parent sysdev dev pointer instead of setting the dma mask of
      its xhci platform device. xhci platform driver can then get more
      attributes from the sysdev than just the dma mask.
      
      The usb core and xhci changes are not yet in 4.10, and a fix like
      this was preferred instead of taking those big changes this late in
      the rc-cycle.
      Signed-off-by: default avatarMathias Nyman <mathias.nyman@linux.intel.com>
      Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
      488dc164
    • Zhang Rui's avatar
      bad94f80
    • Anton Blanchard's avatar
      powerpc: Ignore reserved field in DCSR and PVR reads and writes · 178f3582
      Anton Blanchard authored
      IBM bit 31 (for the rest of us - bit 0) is a reserved field in the
      instruction definition of mtspr and mfspr. Hardware is encouraged to
      (and does) ignore it.
      
      As a result, if userspace executes an mtspr DSCR with the reserved bit
      set, we get a DSCR facility unavailable exception. The kernel fails to
      match against the expected value/mask, and we silently return to
      userspace to try and re-execute the same mtspr DSCR instruction. We
      loop forever until the process is killed.
      
      We should do something here, and it seems mirroring what hardware does
      is the better option vs killing the process. While here, relax the
      matching of mfspr PVR too.
      
      Cc: stable@vger.kernel.org
      Signed-off-by: default avatarAnton Blanchard <anton@samba.org>
      Signed-off-by: default avatarMichael Ellerman <mpe@ellerman.id.au>
      178f3582
    • Dave Martin's avatar
      powerpc/ptrace: Preserve previous TM fprs/vsrs on short regset write · b34ca601
      Dave Martin authored
      Ensure that if userspace supplies insufficient data to PTRACE_SETREGSET
      to fill all the check pointed registers, the thread's old check pointed
      registers are preserved.
      
      Fixes: 9d3918f7 ("powerpc/ptrace: Enable support for NT_PPC_CVSX")
      Fixes: 19cbcbf7 ("powerpc/ptrace: Enable support for NT_PPC_CFPR")
      Cc: stable@vger.kernel.org # v4.8+
      Signed-off-by: default avatarDave Martin <Dave.Martin@arm.com>
      Signed-off-by: default avatarMichael Ellerman <mpe@ellerman.id.au>
      b34ca601
    • Dave Martin's avatar
      powerpc/ptrace: Preserve previous fprs/vsrs on short regset write · 99dfe80a
      Dave Martin authored
      Ensure that if userspace supplies insufficient data to PTRACE_SETREGSET
      to fill all the registers, the thread's old registers are preserved.
      
      Fixes: c6e6771b ("powerpc: Introduce VSX thread_struct and CONFIG_VSX")
      Cc: stable@vger.kernel.org # v2.6.27+
      Signed-off-by: default avatarDave Martin <Dave.Martin@arm.com>
      Signed-off-by: default avatarMichael Ellerman <mpe@ellerman.id.au>
      99dfe80a
    • Lv Zheng's avatar
      ACPICA: Tables: Fix hidden logic related to acpi_tb_install_standard_table() · 7a37052a
      Lv Zheng authored
      There is a hidden logic for acpi_tb_install_standard_table() as it can be
      invoked from the boot stage and during runtime.
      
       1. When it is invoked from the OS boot stage, the ACPICA mutex may not have
          been initialized yet and so acpi_ut_acquire_mutex()/acpi_ut_release_mutex()
          are not invoked in these code paths:
      
         acpi_initialize_tables
           acpi_tb_parse_root_table
             acpi_tb_install_standard_table (4 invocations)
         acpi_install_table
             acpi_tb_install_standard_table
      
       2. When it is invoked during the runtime, ACPICA mutex is used as
          appropriate:
      
         acpi_ex_load_op
           acpi_tb_install_and_load_table
             acpi_tb_install_standard_table
         acpi_load_table
           acpi_tb_install_and_load_table
             acpi_tb_install_standard_table
      
      The mutex is now used in acpi_tb_install_and_load_table(), while it actually
      should be in acpi_tb_install_standard_table().
      
      This introduces another problem in acpi_tb_install_standard_table() where
      acpi_gbl_table_handler is invoked from and the lock contexts are thus not
      consistent for the table handlers. This triggers a regression when
      acpi_get_table()/acpi_put_table() start to hold table mutex during runtime.
      
      The regression is noticed by LKP as new errors reported by ACPICA mutex
      debugging facility.
      
      [    2.043693] ACPI Error: Mutex [ACPI_MTX_Tables] already acquired by this thread [497483776] (20160930/utmutex-254)
      [    2.054084] ACPI Error: Mutex [0x2] is not acquired, cannot release (20160930/utmutex-326)
      
      And it triggers a deadlock:
      
      [  247.066214] INFO: task swapper/0:1 blocked for more than 120 seconds.
      ...
      [  247.091271] Call Trace:
      ...
      [  247.121523]  down_timeout+0x47/0x50
      [  247.125065]  acpi_os_wait_semaphore+0x47/0x62
      [  247.129475]  acpi_ut_acquire_mutex+0x43/0x81
      [  247.133798]  acpi_get_table+0x2d/0x84
      [  247.137513]  acpi_table_attr_init+0xcd/0x100
      [  247.146590]  acpi_sysfs_table_handler+0x5d/0xb8
      [  247.151174]  acpi_bus_table_handler+0x23/0x2a
      [  247.155583]  acpi_tb_install_standard_table+0xe0/0x213
      [  247.164489]  acpi_tb_install_and_load_table+0x3a/0x82
      [  247.169592]  acpi_ex_load_op+0x194/0x201
      ...
      [  247.200108]  acpi_ns_evaluate+0x1bb/0x247
      [  247.204170]  acpi_evaluate_object+0x178/0x274
      [  247.213249]  acpi_processor_set_pdc+0x154/0x17b
      ...
      The table mutex is held in acpi_tb_install_and_load_table() and is re-visited by
      acpi_get_table().
      
      Noticing that the early mutex requirement actually belongs to the OSL layer
      and has already been handled in acpi_os_wait_semaphore()/acpi_os_signal_semaphore(),
      the regression canbe fixed by removing this hidden logic from the ACPICA core
      to the OS-specific code.
      
      Fixes: 174cc718 ("ACPICA: Tables: Back port acpi_get_table_with_size() and early_acpi_os_unmap_memory() from Linux kernel")
      Reported-and-tested-by: default avatarTomi Sarvela <tomi.p.sarvela@intel.com>
      Reported-by: default avatarYe Xiaolong <xiaolong.ye@intel.com>
      Signed-off-by: default avatarLv Zheng <lv.zheng@intel.com>
      Signed-off-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
      7a37052a
    • Linus Torvalds's avatar
      Merge tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc · 44b4b461
      Linus Torvalds authored
      Pull ARM SoC fixes from Olof Johansson:
       "We've been sitting on fixes for a while, and they keep trickling in at
        a low rate. Nothing in here comes across as particularly scary or
        noteworthy, for the most part it's a large collection of small DT
        tweaks"
      
      * tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (24 commits)
        ARM: dts: da850-evm: fix read access to SPI flash
        ARM: dts: omap3: Fix Card Detect and Write Protect on Logic PD SOM-LV
        ARM64: dts: meson-gxbb-odroidc2: Disable SCPI DVFS
        ARM: dts: OMAP5 / DRA7: indicate that SATA port 0 is available.
        ARM: dts: NSP: Fix DT ranges error
        ARM: multi_v7_defconfig: set bcm47xx watchdog
        ARM: multi_v7_defconfig: fix config typo
        ARM: dts: dra72-evm-revc: fix typo in ethernet-phy node
        soc: ti: wkup_m3_ipc: Fix error return code in wkup_m3_ipc_probe()
        ARM: ux500: fix prcmu_is_cpu_in_wfi() calculation
        ARM: dts: sunxi: Change node name for pwrseq pin on Olinuxino-lime2-emmc
        ARM: dts: sun8i: Support DTB build for NanoPi M1
        ARM: dts: sun6i: hummingbird: Enable display engine again
        ARM: dts: sun6i: Disable display pipeline by default
        ARM, ARM64: dts: drop "arm,amba-bus" in favor of "simple-bus" part 3
        ARM: dts: imx6qdl-nitrogen6_som2: fix sgtl5000 pinctrl init
        ARM: dts: imx6qdl-nitrogen6_max: fix sgtl5000 pinctrl init
        ARM: OMAP1: DMA: Correct the number of logical channels
        ARM: dts: am335x-icev2: Remove the duplicated pinmux setting
        ARM: OMAP2+: Fix WL1283 Bluetooth Baud Rate
        ...
      44b4b461
    • Linus Torvalds's avatar
      Merge tag 'xfs-for-linux-4.10-rc5-1' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux · 6e0362b3
      Linus Torvalds authored
      Pull xfs fixes from Darrick Wong:
       "I have a few more patches this week -- one to make the behavior of a
        quota id ioctl consistent with the other filesystems, and the rest
        improve validation of i_mode & i_size values coming into xfs so that
        we don't read off the ends of arrays or crash when handed garbage disk
        data.
      
        Summary:
         - inode i_mode sanitization
         - prevent overflows in getnextquota
         - minor build fixes"
      
      * tag 'xfs-for-linux-4.10-rc5-1' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
        xfs: fix xfs_mode_to_ftype() prototype
        xfs: don't wrap ID in xfs_dq_get_next_id
        xfs: sanity check inode di_mode
        xfs: sanity check inode mode when creating new dentry
        xfs: replace xfs_mode_to_ftype table with switch statement
        xfs: add missing include dependencies to xfs_dir2.h
        xfs: sanity check directory inode di_size
        xfs: make the ASSERT() condition likely
      6e0362b3
    • Fabien Parent's avatar
      ARM: dts: da850-evm: fix read access to SPI flash · 43849785
      Fabien Parent authored
      Read access to the SPI flash are broken on da850-evm, i.e. the data
      read is not what is actually programmed on the flash.
      According to the datasheet for the M25P64 part present on the da850-evm,
      if the SPI frequency is higher than 20MHz then the READ command is not
      usable anymore and only the FAST_READ command can be used to read data.
      
      This commit specifies in the DTS that we should use FAST_READ command
      instead of the READ command.
      
      Cc: stable@vger.kernel.org
      Tested-by: default avatarKevin Hilman <khilman@baylibre.com>
      Signed-off-by: default avatarFabien Parent <fparent@baylibre.com>
      [nsekhar@ti.com: subject line adjustment]
      Signed-off-by: default avatarSekhar Nori <nsekhar@ti.com>
      Signed-off-by: default avatarOlof Johansson <olof@lixom.net>
      43849785
  5. 19 Jan, 2017 8 commits