1. 17 Jan, 2017 5 commits
  2. 13 Jan, 2017 1 commit
  3. 12 Jan, 2017 9 commits
  4. 09 Jan, 2017 2 commits
    • Dave Airlie's avatar
      Merge tag 'drm-misc-fixes-2017-01-09' of git://anongit.freedesktop.org/git/drm-misc into drm-fixes · 9afe69d5
      Dave Airlie authored
      Single drm bridge fix.
      
      * tag 'drm-misc-fixes-2017-01-09' of git://anongit.freedesktop.org/git/drm-misc:
        drm/bridge: analogix dp: Fix runtime PM state on driver bind
      9afe69d5
    • Marek Szyprowski's avatar
      drm/bridge: analogix dp: Fix runtime PM state on driver bind · f0a8b49c
      Marek Szyprowski authored
      
      
      Analogix_dp_bind() can be called from component framework, which doesn't
      guarantee proper runtime PM state of the device during bind operation,
      so ensure that device is runtime active before doing any register access.
      This ensures that the power domain, to which DP module belongs, is turned
      on. While at it, also fix the unbalanced call to phy_power_on() in
      analogix_dp_bind() function.
      
      This patch solves the following kernel oops on Samsung Exynos5250 Snow
      board:
      
      Unhandled fault: imprecise external abort (0x406) at 0x00000000
      pgd = c0004000
      [00000000] *pgd=00000000
      Internal error: : 406 [#1] PREEMPT SMP ARM
      Modules linked in:
      CPU: 0 PID: 75 Comm: kworker/0:2 Not tainted 4.9.0 #1046
      Hardware name: SAMSUNG EXYNOS (Flattened Device Tree)
      Workqueue: events deferred_probe_work_func
      task: ee272300 task.stack: ee312000
      PC is at analogix_dp_enable_sw_function+0x18/0x2c
      LR is at analogix_dp_init_dp+0x2c/0x50
      ...
      [<c03fcb38>] (analogix_dp_enable_sw_function) from [<c03fa9c4>] (analogix_dp_init_dp+0x2c/0x50)
      [<c03fa9c4>] (analogix_dp_init_dp) from [<c03fab6c>] (analogix_dp_bind+0x184/0x42c)
      [<c03fab6c>] (analogix_dp_bind) from [<c03fdb84>] (component_bind_all+0xf0/0x218)
      [<c03fdb84>] (component_bind_all) from [<c03ed64c>] (exynos_drm_load+0x134/0x200)
      [<c03ed64c>] (exynos_drm_load) from [<c03d5058>] (drm_dev_register+0xa0/0xd0)
      [<c03d5058>] (drm_dev_register) from [<c03d66b8>] (drm_platform_init+0x58/0xb0)
      [<c03d66b8>] (drm_platform_init) from [<c03fe0c4>] (try_to_bring_up_master+0x14c/0x188)
      [<c03fe0c4>] (try_to_bring_up_master) from [<c03fe188>] (component_add+0x88/0x138)
      [<c03fe188>] (component_add) from [<c0403a38>] (platform_drv_probe+0x50/0xb0)
      [<c0403a38>] (platform_drv_probe) from [<c0402470>] (driver_probe_device+0x1f0/0x2a8)
      [<c0402470>] (driver_probe_device) from [<c0400a54>] (bus_for_each_drv+0x44/0x8c)
      [<c0400a54>] (bus_for_each_drv) from [<c04021f8>] (__device_attach+0x9c/0x100)
      [<c04021f8>] (__device_attach) from [<c04018e8>] (bus_probe_device+0x84/0x8c)
      [<c04018e8>] (bus_probe_device) from [<c0401d1c>] (deferred_probe_work_func+0x60/0x8c)
      [<c0401d1c>] (deferred_probe_work_func) from [<c012fc14>] (process_one_work+0x120/0x318)
      [<c012fc14>] (process_one_work) from [<c012fe34>] (process_scheduled_works+0x28/0x38)
      [<c012fe34>] (process_scheduled_works) from [<c0130048>] (worker_thread+0x204/0x4ac)
      [<c0130048>] (worker_thread) from [<c01352c4>] (kthread+0xd8/0xf4)
      [<c01352c4>] (kthread) from [<c0107978>] (ret_from_fork+0x14/0x3c)
      Code: e59035f0 e5935018 f57ff04f e3c55001 (f57ff04e)
      ---[ end trace 3d1d0d87796de344 ]---
      Reviewed-by: default avatarSean Paul <seanpaul@chromium.org>
      Signed-off-by: default avatarMarek Szyprowski <m.szyprowski@samsung.com>
      Signed-off-by: default avatarArchit Taneja <architt@codeaurora.org>
      Link: http://patchwork.freedesktop.org/patch/msgid/1483091866-1088-1-git-send-email-m.szyprowski@samsung.com
      f0a8b49c
  5. 08 Jan, 2017 11 commits
    • Dave Airlie's avatar
      Merge branch 'drm-fixes-4.10' of git://people.freedesktop.org/~agd5f/linux into drm-fixes · 6edd870b
      Dave Airlie authored
      Fixes for 4.10:
      - Polaris 12 support
      - Add new amd-gfx mailing list to MAINTAINERS file
      - UVD clockgating fix
      - SI dpm fixes
      
      * 'drm-fixes-4.10' of git://people.freedesktop.org/~agd5f/linux:
        drm/amdgpu: drop verde dpm quirks
        drm/radeon: drop verde dpm quirks
        drm/radeon: update smc firmware selection for SI
        drm/amdgpu: update si kicker smc firmware
        drm/amd/powerplay: extend smu's response timeout time.
        drm/amdgpu: remove static integer for uvd pp state
        drm/amd/amdgpu: add Polaris12 PCI ID
        drm/amdgpu/powerplay: add Polaris12 support
        drm/amd/amdgpu: add Polaris12 support (v3)
        MAINTAINERS: Update mailing list for radeon and amdgpu
      6edd870b
    • Dave Airlie's avatar
      Merge branch 'msm-fixes-4.10' of git://people.freedesktop.org/~robclark/linux into drm-fixes · 6906407e
      Dave Airlie authored
      A few fixes for 4.10.. the first fixes a long-standing logic bug, that
      by luck (ie. size of packets written into RB for a submit) wasn't hit
      on a3xx/a4xx but was causing intermittent GPU lockups on a5xx.  And a
      couple other robustness issues that Jordan noticed.
      
      * 'msm-fixes-4.10' of git://people.freedesktop.org/~robclark/linux:
        drm/msm: Verify that MSM_SUBMIT_BO_FLAGS are set
        drm/msm: Put back the vaddr in submit_reloc()
        drm/msm: Ensure that the hardware write pointer is valid
      6906407e
    • Dave Airlie's avatar
      Merge tag 'meson-drm-fixes-for-4.10' of... · 90e5d2d4
      Dave Airlie authored
      Merge tag 'meson-drm-fixes-for-4.10' of git://people.freedesktop.org/~narmstrong/linux into drm-fixes
      
      - plan atomic check oops fix
      - fix CVBS init when HDMI is configured by bootloader
      - fix CVBS VDAC disable
      
      * tag 'meson-drm-fixes-for-4.10' of git://people.freedesktop.org/~narmstrong/linux:
        drm/meson: Fix CVBS VDAC disable
        drm/meson: Fix CVBS initialization when HDMI is configured by bootloader
        drm/meson: Fix plane atomic check when no crtc for the plane
      90e5d2d4
    • Dave Airlie's avatar
      Merge tag 'tilcdc-4.10-fixes' of https://github.com/jsarha/linux into drm-fixes · 13fe46b5
      Dave Airlie authored
      tilcdc fixes for v4.10.
      
      * tag 'tilcdc-4.10-fixes' of https://github.com/jsarha/linux:
        drm: tilcdc: simplify the recovery from sync lost error on rev1
      13fe46b5
    • Dave Airlie's avatar
      Merge tag 'drm-misc-fixes-2017-01-04' of git://anongit.freedesktop.org/git/drm-misc into drm-fixes · e1ef6f71
      Dave Airlie authored
      single drm fix.
      
      * tag 'drm-misc-fixes-2017-01-04' of git://anongit.freedesktop.org/git/drm-misc:
        drm: Clean up planes in atomic commit helper failure path
      e1ef6f71
    • Linus Torvalds's avatar
      Linux 4.10-rc3 · a121103c
      Linus Torvalds authored
      a121103c
    • Linus Torvalds's avatar
      Merge tag 'usb-4.10-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb · 83280e90
      Linus Torvalds authored
      Pull USB fixes from Greg KH:
       "Here are a bunch of USB fixes for 4.10-rc3. Yeah, it's a lot, an
        artifact of the holiday break I think.
      
        Lots of gadget and the usual XHCI fixups for reported issues (one day
        that driver will calm down...) Also included are a bunch of usb-serial
        driver fixes, and for good measure, a number of much-reported MUSB
        driver issues have finally been resolved.
      
        All of these have been in linux-next with no reported issues"
      
      * tag 'usb-4.10-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (72 commits)
        USB: fix problems with duplicate endpoint addresses
        usb: ohci-at91: use descriptor-based gpio APIs correctly
        usb: storage: unusual_uas: Add JMicron JMS56x to unusual device
        usb: hub: Move hub_port_disable() to fix warning if PM is disabled
        usb: musb: blackfin: add bfin_fifo_offset in bfin_ops
        usb: musb: fix compilation warning on unused function
        usb: musb: Fix trying to free already-free IRQ 4
        usb: musb: dsps: implement clear_ep_rxintr() callback
        usb: musb: core: add clear_ep_rxintr() to musb_platform_ops
        USB: serial: ti_usb_3410_5052: fix NULL-deref at open
        USB: serial: spcp8x5: fix NULL-deref at open
        USB: serial: quatech2: fix sleep-while-atomic in close
        USB: serial: pl2303: fix NULL-deref at open
        USB: serial: oti6858: fix NULL-deref at open
        USB: serial: omninet: fix NULL-derefs at open and disconnect
        USB: serial: mos7840: fix misleading interrupt-URB comment
        USB: serial: mos7840: remove unused write URB
        USB: serial: mos7840: fix NULL-deref at open
        USB: serial: mos7720: remove obsolete port initialisation
        USB: serial: mos7720: fix parallel probe
        ...
      83280e90
    • Linus Torvalds's avatar
      Merge tag 'char-misc-4.10-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc · cc250e26
      Linus Torvalds authored
      Pull char/misc fixes from Greg KH:
       "Here are a few small char/misc driver fixes for 4.10-rc3.
      
        Two MEI driver fixes, and three NVMEM patches for reported issues, and
        a new Hyper-V driver MAINTAINER update. Nothing major at all, all have
        been in linux-next with no reported issues"
      
      * tag 'char-misc-4.10-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
        hyper-v: Add myself as additional MAINTAINER
        nvmem: fix nvmem_cell_read() return type doc
        nvmem: imx-ocotp: Fix wrong register size
        nvmem: qfprom: Allow single byte accesses for read/write
        mei: move write cb to completion on credentials failures
        mei: bus: fix mei_cldev_enable KDoc
      cc250e26
    • Linus Torvalds's avatar
      Merge tag 'staging-4.10-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging · 6ea17ed1
      Linus Torvalds authored
      Pull staging/IIO fixes from Greg KH:
       "Here are some staging and IIO driver fixes for 4.10-rc3.
      
        Most of these are minor IIO fixes of reported issues, along with one
        network driver fix to resolve an issue. And a MAINTAINERS update with
        a new mailing list. All of these, except the MAINTAINERS file update,
        have been in linux-next with no reported issues (the MAINTAINERS patch
        happened on Friday...)"
      
      * tag 'staging-4.10-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
        MAINTAINERS: add greybus subsystem mailing list
        staging: octeon: Call SET_NETDEV_DEV()
        iio: accel: st_accel: fix LIS3LV02 reading and scaling
        iio: common: st_sensors: fix channel data parsing
        iio: max44000: correct value in illuminance_integration_time_available
        iio: adc: TI_AM335X_ADC should depend on HAS_DMA
        iio: bmi160: Fix time needed to sleep after command execution
        iio: 104-quad-8: Fix active level mismatch for the preset enable option
        iio: 104-quad-8: Fix off-by-one errors when addressing IOR
        iio: 104-quad-8: Fix index control configuration
      6ea17ed1
    • Johannes Weiner's avatar
      mm: workingset: fix use-after-free in shadow node shrinker · ea07b862
      Johannes Weiner authored
      Several people report seeing warnings about inconsistent radix tree
      nodes followed by crashes in the workingset code, which all looked like
      use-after-free access from the shadow node shrinker.
      
      Dave Jones managed to reproduce the issue with a debug patch applied,
      which confirmed that the radix tree shrinking indeed frees shadow nodes
      while they are still linked to the shadow LRU:
      
        WARNING: CPU: 2 PID: 53 at lib/radix-tree.c:643 delete_node+0x1e4/0x200
        CPU: 2 PID: 53 Comm: kswapd0 Not tainted 4.10.0-rc2-think+ #3
        Call Trace:
           delete_node+0x1e4/0x200
           __radix_tree_delete_node+0xd/0x10
           shadow_lru_isolate+0xe6/0x220
           __list_lru_walk_one.isra.4+0x9b/0x190
           list_lru_walk_one+0x23/0x30
           scan_shadow_nodes+0x2e/0x40
           shrink_slab.part.44+0x23d/0x5d0
           shrink_node+0x22c/0x330
           kswapd+0x392/0x8f0
      
      This is the WARN_ON_ONCE(!list_empty(&node->private_list)) placed in the
      inlined radix_tree_shrink().
      
      The problem is with 14b46879 ("mm: workingset: move shadow entry
      tracking to radix tree exceptional tracking"), which passes an update
      callback into the radix tree to link and unlink shadow leaf nodes when
      tree entries change, but forgot to pass the callback when reclaiming a
      shadow node.
      
      While the reclaimed shadow node itself is unlinked by the shrinker, its
      deletion from the tree can cause the left-most leaf node in the tree to
      be shrunk.  If that happens to be a shadow node as well, we don't unlink
      it from the LRU as we should.
      
      Consider this tree, where the s are shadow entries:
      
             root->rnode
                  |
             [0       n]
              |       |
           [s    ] [sssss]
      
      Now the shadow node shrinker reclaims the rightmost leaf node through
      the shadow node LRU:
      
             root->rnode
                  |
             [0        ]
              |
          [s     ]
      
      Because the parent of the deleted node is the first level below the
      root and has only one child in the left-most slot, the intermediate
      level is shrunk and the node containing the single shadow is put in
      its place:
      
             root->rnode
                  |
             [s        ]
      
      The shrinker again sees a single left-most slot in a first level node
      and thus decides to store the shadow in root->rnode directly and free
      the node - which is a leaf node on the shadow node LRU.
      
        root->rnode
             |
             s
      
      Without the update callback, the freed node remains on the shadow LRU,
      where it causes later shrinker runs to crash.
      
      Pass the node updater callback into __radix_tree_delete_node() in case
      the deletion causes the left-most branch in the tree to collapse too.
      
      Also add warnings when linked nodes are freed right away, rather than
      wait for the use-after-free when the list is scanned much later.
      
      Fixes: 14b46879
      
       ("mm: workingset: move shadow entry tracking to radix tree exceptional tracking")
      Reported-by: default avatarDave Chinner <david@fromorbit.com>
      Reported-by: default avatarHugh Dickins <hughd@google.com>
      Reported-by: default avatarAndrea Arcangeli <aarcange@redhat.com>
      Reported-and-tested-by: default avatarDave Jones <davej@codemonkey.org.uk>
      Signed-off-by: default avatarJohannes Weiner <hannes@cmpxchg.org>
      Cc: Christoph Hellwig <hch@lst.de>
      Cc: Chris Leech <cleech@redhat.com>
      Cc: Lee Duncan <lduncan@suse.com>
      Cc: Jan Kara <jack@suse.cz>
      Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
      Cc: Matthew Wilcox <mawilcox@linuxonhyperv.com>
      Cc: Andrew Morton <akpm@linux-foundation.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      ea07b862
    • Hugh Dickins's avatar
      mm: stop leaking PageTables · b0b9b3df
      Hugh Dickins authored
      4.10-rc loadtest (even on x86, and even without THPCache) fails with
      "fork: Cannot allocate memory" or some such; and /proc/meminfo shows
      PageTables growing.
      
      Commit 953c66c2 ("mm: THP page cache support for ppc64") that got
      merged in rc1 removed the freeing of an unused preallocated pagetable
      after do_fault_around() has called map_pages().
      
      This is usually a good optimization, so that the followup doesn't have
      to reallocate one; but it's not sufficient to shift the freeing into
      alloc_set_pte(), since there are failure cases (most commonly
      VM_FAULT_RETRY) which never reach finish_fault().
      
      Check and free it at the outer level in do_fault(), then we don't need
      to worry in alloc_set_pte(), and can restore that to how it was (I
      cannot find any reason to pte_free() under lock as it was doing).
      
      And fix a separate pagetable leak, or crash, introduced by the same
      change, that could only show up on some ppc64: why does do_set_pmd()'s
      failure case attempt to withdraw a pagetable when it never deposited
      one, at the same time overwriting (so leaking) the vmf->prealloc_pte?
      Residue of an earlier implementation, perhaps? Delete it.
      
      Fixes: 953c66c2
      
       ("mm: THP page cache support for ppc64")
      Cc: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
      Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
      Cc: Michael Ellerman <mpe@ellerman.id.au>
      Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
      Cc: Michael Neuling <mikey@neuling.org>
      Cc: Paul Mackerras <paulus@samba.org>
      Cc: Balbir Singh <bsingharora@gmail.com>
      Cc: Andrew Morton <akpm@linux-foundation.org>
      Signed-off-by: default avatarHugh Dickins <hughd@google.com>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      b0b9b3df
  6. 07 Jan, 2017 2 commits
  7. 06 Jan, 2017 10 commits