1. 17 Feb, 2018 10 commits
  2. 16 Feb, 2018 15 commits
    • Linus Torvalds's avatar
      Merge tag 'dma-mapping-4.16-2' of git://git.infradead.org/users/hch/dma-mapping · 1e3510b2
      Linus Torvalds authored
      Pull dma-mapping fixes from Christoph Hellwig:
       "A few dma-mapping fixes for the fallout from the changes in rc1"
      
      * tag 'dma-mapping-4.16-2' of git://git.infradead.org/users/hch/dma-mapping:
        powerpc/macio: set a proper dma_coherent_mask
        dma-mapping: fix a comment typo
        dma-direct: comment the dma_direct_free calling convention
        dma-direct: mark as is_phys
        ia64: fix build failure with CONFIG_SWIOTLB
      1e3510b2
    • Will Deacon's avatar
      arm64: mm: Use READ_ONCE/WRITE_ONCE when accessing page tables · 20a004e7
      Will Deacon authored
      
      
      In many cases, page tables can be accessed concurrently by either another
      CPU (due to things like fast gup) or by the hardware page table walker
      itself, which may set access/dirty bits. In such cases, it is important
      to use READ_ONCE/WRITE_ONCE when accessing page table entries so that
      entries cannot be torn, merged or subject to apparent loss of coherence
      due to compiler transformations.
      
      Whilst there are some scenarios where this cannot happen (e.g. pinned
      kernel mappings for the linear region), the overhead of using READ_ONCE
      /WRITE_ONCE everywhere is minimal and makes the code an awful lot easier
      to reason about. This patch consistently uses these macros in the arch
      code, as well as explicitly namespacing pointers to page table entries
      from the entries themselves by using adopting a 'p' suffix for the former
      (as is sometimes used elsewhere in the kernel source).
      
      Tested-by: default avatarYury Norov <ynorov@caviumnetworks.com>
      Tested-by: default avatarRichard Ruigrok <rruigrok@codeaurora.org>
      Reviewed-by: default avatarMarc Zyngier <marc.zyngier@arm.com>
      Signed-off-by: default avatarWill Deacon <will.deacon@arm.com>
      Signed-off-by: default avatarCatalin Marinas <catalin.marinas@arm.com>
      20a004e7
    • Arnd Bergmann's avatar
      mm: hide a #warning for COMPILE_TEST · af27d940
      Arnd Bergmann authored
      We get a warning about some slow configurations in randconfig kernels:
      
        mm/memory.c:83:2: error: #warning Unfortunate NUMA and NUMA Balancing config, growing page-frame for last_cpupid. [-Werror=cpp]
      
      The warning is reasonable by itself, but gets in the way of randconfig
      build testing, so I'm hiding it whenever CONFIG_COMPILE_TEST is set.
      
      The warning was added in 2013 in commit 75980e97
      
       ("mm: fold
      page->_last_nid into page->flags where possible").
      
      Cc: stable@vger.kernel.org
      Signed-off-by: default avatarArnd Bergmann <arnd@arndb.de>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      af27d940
    • Linus Torvalds's avatar
      Merge tag 'mips_fixes_4.16_2' of git://git.kernel.org/pub/scm/linux/kernel/git/jhogan/mips · 78352f18
      Linus Torvalds authored
      Pull MIPS fixes from James Hogan:
       "A few fixes for outstanding MIPS issues:
      
         - an __init section mismatch warning when brcmstb_pm is enabled
      
         - a regression handling multiple mem=X@Y arguments (4.11)
      
         - a USB Kconfig select warning, and related sparc cleanup (4.16)"
      
      * tag 'mips_fixes_4.16_2' of git://git.kernel.org/pub/scm/linux/kernel/git/jhogan/mips:
        sparc,leon: Select USB_UHCI_BIG_ENDIAN_{MMIO,DESC}
        usb: Move USB_UHCI_BIG_ENDIAN_* out of USB_SUPPORT
        MIPS: Fix incorrect mem=X@Y handling
        MIPS: BMIPS: Fix section mismatch warning
      78352f18
    • Linus Torvalds's avatar
      Merge tag 'for-4.16-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux · da370f1d
      Linus Torvalds authored
      Pull btrfs fixes from David Sterba:
       "We have a few assorted fixes, some of them show up during fstests so I
        gave them more testing"
      
      * tag 'for-4.16-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
        btrfs: Fix use-after-free when cleaning up fs_devs with a single stale device
        Btrfs: fix null pointer dereference when replacing missing device
        btrfs: remove spurious WARN_ON(ref->count < 0) in find_parent_nodes
        btrfs: Ignore errors from btrfs_qgroup_trace_extent_post
        Btrfs: fix unexpected -EEXIST when creating new inode
        Btrfs: fix use-after-free on root->orphan_block_rsv
        Btrfs: fix btrfs_evict_inode to handle abnormal inodes correctly
        Btrfs: fix extent state leak from tree log
        Btrfs: fix crash due to not cleaning up tree log block's dirty bits
        Btrfs: fix deadlock in run_delalloc_nocow
      da370f1d
    • Linus Torvalds's avatar
      Merge tag 'for-4.16/dm-chained-bios-fix' of... · c85b0b14
      Linus Torvalds authored
      Merge tag 'for-4.16/dm-chained-bios-fix' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm
      
      Pull device mapper fix from Mike Snitzer:
       "Fix for DM core to properly propagate errors (avoids overriding
        non-zero error with 0). This is particularly important given DM core's
        increased use of chained bios"
      
      * tag 'for-4.16/dm-chained-bios-fix' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
        dm: correctly handle chained bios in dec_pending()
      c85b0b14
    • Linus Torvalds's avatar
      Merge tag 'platform-drivers-x86-v4.16-4' of git://git.infradead.org/linux-platform-drivers-x86 · 5e8639b7
      Linus Torvalds authored
      Pull x86 platform driver fixes from Andy Shevchenko:
      
       - regression fix in keyboard support for Dell laptops
      
       - prevent out-of-boundary write in WMI bus driver
      
       - increase timeout to read functional key status on Lenovo laptops
      
      * tag 'platform-drivers-x86-v4.16-4' of git://git.infradead.org/linux-platform-drivers-x86:
        platform/x86: dell-laptop: Removed duplicates in DMI whitelist
        platform/x86: dell-laptop: fix kbd_get_state's request value
        platform/x86: ideapad-laptop: Increase timeout to wait for EC answer
        platform/x86: wmi: fix off-by-one write in wmi_dev_probe()
      5e8639b7
    • Linus Torvalds's avatar
      Merge tag 'sound-4.16-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound · 1a2a7d3e
      Linus Torvalds authored
      Pull sound fixes from Takashi Iwai:
       "A collection of usual suspects:
      
         - a handful USB-audio and HD-audio device-specific quirks
      
         - some trivial fixes for the new AC97 bus stuff
      
         - another race fix in ALSA sequencer core"
      
      * tag 'sound-4.16-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
        ALSA: hda/realtek: PCI quirk for Fujitsu U7x7
        ALSA: seq: Fix racy pool initializations
        ALSA: usb: add more device quirks for USB DSD devices
        ALSA: usb-audio: Fix UAC2 get_ctl request with a RANGE attribute
        ALSA: ac97: Fix copy and paste typo in documentation
        ALSA: usb-audio: add implicit fb quirk for Behringer UFX1204
        ALSA: ac97: kconfig: Remove select of undefined symbol AC97
        ALSA: hda/realtek - Enable Thinkpad Dock device for ALC298 platform
        ALSA: hda/realtek - Add headset mode support for Dell laptop
        ALSA: hda - Fix headset mic detection problem for two Dell machines
      1a2a7d3e
    • Linus Torvalds's avatar
      Merge tag 'drm-fixes-for-v4.16-rc2' of git://people.freedesktop.org/~airlied/linux · bad57539
      Linus Torvalds authored
      Pull drm fixes from Dave Airlie:
       "One nouveau regression fix, one AMD quirk and a full set of i915
        fixes.
      
        The i915 fixes are mostly for things caught by their CI system, main
        ones being DSI panel fixes and GEM fixes"
      
      * tag 'drm-fixes-for-v4.16-rc2' of git://people.freedesktop.org/~airlied/linux:
        drm/nouveau: Make clock gate support conditional
        drm/i915: Fix DSI panels with v1 MIPI sequences without a DEASSERT sequence v3
        drm/i915: Free memdup-ed DSI VBT data structures on driver_unload
        drm/i915: Add intel_bios_cleanup() function
        drm/i915/vlv: Add cdclk workaround for DSI
        drm/i915/gvt: fix one typo of render_mmio trace
        drm/i915/gvt: Support BAR0 8-byte reads/writes
        drm/i915/gvt: add 0xe4f0 into gen9 render list
        drm/i915/pmu: Fix building without CONFIG_PM
        drm/i915/pmu: Fix sleep under atomic in RC6 readout
        drm/i915/pmu: Fix PMU enable vs execlists tasklet race
        drm/i915: Lock out execlist tasklet while peeking inside for busy-stats
        drm/i915/breadcrumbs: Ignore unsubmitted signalers
        drm/i915: Don't wake the device up to check if the engine is asleep
        drm/i915: Avoid truncation before clamping userspace's priority value
        drm/i915/perf: Fix compiler warning for string truncation
        drm/i915/perf: Fix compiler warning for string truncation
        drm/amdgpu: add new device to use atpx quirk
      bad57539
    • NeilBrown's avatar
      dm: correctly handle chained bios in dec_pending() · 8dd601fa
      NeilBrown authored
      dec_pending() is given an error status (possibly 0) to be recorded
      against a bio.  It can be called several times on the one 'struct
      dm_io', and it is careful to only assign a non-zero error to
      io->status.  However when it then assigned io->status to bio->bi_status,
      it is not careful and could overwrite a genuine error status with 0.
      
      This can happen when chained bios are in use.  If a bio is chained
      beneath the bio that this dm_io is handling, the child bio might
      complete and set bio->bi_status before the dm_io completes.
      
      This has been possible since chained bios were introduced in 3.14, and
      has become a lot easier to trigger with commit 18a25da8
      
       ("dm: ensure
      bio submission follows a depth-first tree walk") as that commit caused
      dm to start using chained bios itself.
      
      A particular failure mode is that if a bio spans an 'error' target and a
      working target, the 'error' fragment will complete instantly and set the
      ->bi_status, and the other fragment will normally complete a little
      later, and will clear ->bi_status.
      
      The fix is simply to only assign io_error to bio->bi_status when
      io_error is not zero.
      
      Reported-and-tested-by: default avatarMilan Broz <gmazyland@gmail.com>
      Cc: stable@vger.kernel.org (v3.14+)
      Signed-off-by: default avatarNeilBrown <neilb@suse.com>
      Signed-off-by: default avatarMike Snitzer <snitzer@redhat.com>
      8dd601fa
    • Nathan Fontenot's avatar
      powerpc/pseries: Check for zero filled ibm,dynamic-memory property · 2c10636a
      Nathan Fontenot authored
      
      
      Some versions of QEMU will produce an ibm,dynamic-reconfiguration-memory
      node with a ibm,dynamic-memory property that is zero-filled. This
      causes the drmem code to oops trying to parse this property.
      
      The fix for this is to validate that the property does contain LMB
      entries before trying to parse it and bail if the count is zero.
      
        Oops: Kernel access of bad area, sig: 11 [#1]
        DAR: 0000000000000010
        NIP read_drconf_v1_cell+0x54/0x9c
        LR  read_drconf_v1_cell+0x48/0x9c
        Call Trace:
          __param_initcall_debug+0x0/0x28 (unreliable)
          drmem_init+0x144/0x2f8
          do_one_initcall+0x64/0x1d0
          kernel_init_freeable+0x298/0x38c
          kernel_init+0x24/0x160
          ret_from_kernel_thread+0x5c/0xb4
      
      The ibm,dynamic-reconfiguration-memory device tree property generated
      that causes this:
      
        ibm,dynamic-reconfiguration-memory {
                ibm,lmb-size = <0x0 0x10000000>;
                ibm,memory-flags-mask = <0xff>;
                ibm,dynamic-memory = <0x0 0x0 0x0 0x0 0x0 0x0>;
                linux,phandle = <0x7e57eed8>;
                ibm,associativity-lookup-arrays = <0x1 0x4 0x0 0x0 0x0 0x0>;
                ibm,memory-preservation-time = <0x0>;
        };
      
      Signed-off-by: default avatarNathan Fontenot <nfont@linux.vnet.ibm.com>
      Reviewed-by: default avatarCyril Bur <cyrilbur@gmail.com>
      Tested-by: default avatarDaniel Black <daniel@linux.vnet.ibm.com>
      [mpe: Trim oops report]
      Signed-off-by: default avatarMichael Ellerman <mpe@ellerman.id.au>
      2c10636a
    • Dave Airlie's avatar
      Merge branch 'linux-4.16' of git://github.com/skeggsb/linux into drm-fixes · bfad2d08
      Dave Airlie authored
      single fix for older gpus.
      
      * 'linux-4.16' of git://github.com/skeggsb/linux:
        drm/nouveau: Make clock gate support conditional
      bfad2d08
    • Thierry Reding's avatar
      drm/nouveau: Make clock gate support conditional · 92256269
      Thierry Reding authored
      The recently introduced clock gate support breaks on Tegra chips because
      no thermal support is enabled for those devices. Conditionalize the code
      on the existence of thermal support to fix this.
      
      Fixes: b138eca6
      
       ("drm/nouveau: Add support for basic clockgating on Kepler1")
      Cc: Martin Peres <martin.peres@free.fr>
      Cc: Lyude Paul <lyude@redhat.com>
      Signed-off-by: default avatarThierry Reding <treding@nvidia.com>
      Reviewed-by: default avatarLyude Paul <lyude@redhat.com>
      Signed-off-by: default avatarBen Skeggs <bskeggs@redhat.com>
      92256269
    • Dave Airlie's avatar
      Merge tag 'drm-intel-fixes-2018-02-14-1' of... · 8d3c6294
      Dave Airlie authored
      Merge tag 'drm-intel-fixes-2018-02-14-1' of git://anongit.freedesktop.org/drm/drm-intel into drm-fixes
      
      There are important fixes for VLV with MIPI/DSI panels,
      2 clean-up patches needed for this MIPI/DSI fix,
      and many fixes for GEM including fixes for Perf OA and PMU,
      and fixes on scheduler and preemption.
      
      This also includes GVT fixes: "This has one to fix GTT mmio 8b
      access from guest and two simple ones for mmio switch and typo fix"
      
      * tag 'drm-intel-fixes-2018-02-14-1' of git://anongit.freedesktop.org/drm/drm-intel:
        drm/i915: Fix DSI panels with v1 MIPI sequences without a DEASSERT sequence v3
        drm/i915: Free memdup-ed DSI VBT data structures on driver_unload
        drm/i915: Add intel_bios_cleanup() function
        drm/i915/vlv: Add cdclk workaround for DSI
        drm/i915/gvt: fix one typo of render_mmio trace
        drm/i915/gvt: Support BAR0 8-byte reads/writes
        drm/i915/gvt: add 0xe4f0 into gen9 render list
        drm/i915/pmu: Fix building without CONFIG_PM
        drm/i915/pmu: Fix sleep under atomic in RC6 readout
        drm/i915/pmu: Fix PMU enable vs execlists tasklet race
        drm/i915: Lock out execlist tasklet while peeking inside for busy-stats
        drm/i915/breadcrumbs: Ignore unsubmitted signalers
        drm/i915: Don't wake the device up to check if the engine is asleep
        drm/i915: Avoid truncation before clamping userspace's priority value
        drm/i915/perf: Fix compiler warning for string truncation
        drm/i915/perf: Fix compiler warning for string truncation
      8d3c6294
    • Dave Airlie's avatar
      Merge branch 'drm-next-4.16' of git://people.freedesktop.org/~agd5f/linux into drm-fixes · 6bdd5b4e
      Dave Airlie authored
      single atpx fix
      
      * 'drm-next-4.16' of git://people.freedesktop.org/~agd5f/linux:
        drm/amdgpu: add new device to use atpx quirk
      6bdd5b4e
  3. 15 Feb, 2018 15 commits