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  1. 25 6月, 2016 2 次提交
  3. 24 6月, 2016 13 次提交
    • L
      Merge tag 'upstream-4.7-rc5' of git://git.infradead.org/linux-ubifs · 63c04ee7
      由 Linus Torvalds 提交于 
      Pull UBI/UBIFS fixes from Richard Weinberger:
 "This contains fixes for two critical bugs in UBI and UBIFS:

   - fix the possibility of losing data upon a power cut when UBI tries
     to recover from a write error

   - fix page migration on UBIFS.  It turned out that the default page
     migration function is not suitable for UBIFS"

* tag 'upstream-4.7-rc5' of git://git.infradead.org/linux-ubifs:
  UBIFS: Implement ->migratepage()
  mm: Export migrate_page_move_mapping and migrate_page_copy
  ubi: Make recover_peb power cut aware
  gpio: make library immune to error pointers
  gpio: make sure gpiod_to_irq() returns negative on NULL desc
  gpio: 104-idi-48: Fix missing spin_lock_init for ack_lock
      63c04ee7
    • L
      Merge tag 'drm-fixes-for-v4.7-rc5' of git://people.freedesktop.org/~airlied/linux · 0bf0ea43
      由 Linus Torvalds 提交于 
      Pull drm fixes from Dave Airlie:
 "This is the drm fixes tree for 4.7-rc5.

  It's a bit larger than normal, due to fixes for production AMD Polaris
  GPUs.  We only merged support for these in 4.7-rc1 so it would be good
  if we got all the fixes into final.  The changes don't hit any other
  hardware.

  Other than the amdgpu Polaris changes:

   - A single fix for atomic modesetting WARN
   - Nouveau fix for when fbdev is disabled
   - i915 fixes for FBC on Haswell and displayport regression
   - Exynos fix for a display panel regression and some other minor changes
   - Atmel fixes for scaling and OF graph interaction
   - Allwiinner build, warning and probing fixes
   - AMD GPU non-polaris fix for num_rbs and some minor fixes

  Also I've just moved house, and my new place is Internet challenged
  due to incompetent incumbent ISPs, hopefully sorted out in a couple of
  weeks, so I might not be too responsive over the next while.  It also
  helps Daniel is on holidays for those couple of weeks as well"

* tag 'drm-fixes-for-v4.7-rc5' of git://people.freedesktop.org/~airlied/linux: (38 commits)
  drm/atomic: Make drm_atomic_legacy_backoff reset crtc->acquire_ctx
  drm/nouveau: fix for disabled fbdev emulation
  drm/i915/fbc: Disable on HSW by default for now
  drm/i915: Revert DisplayPort fast link training feature
  drm/amd/powerplay: enable clock stretch feature for polaris
  drm/amdgpu/gfx8: update golden setting for polaris10
  drm/amd/powerplay: enable avfs feature for polaris
  drm/amdgpu/atombios: add avfs struct for Polaris10/11
  drm/amd/powerplay: add avfs related define for polaris
  drm/amd/powrplay: enable stutter_mode for polaris.
  drm/amd/powerplay: disable UVD SMU handshake for MCLK.
  drm/amd/powerplay: initialize variables which were missed.
  drm/amd/powerplay: enable PowerContainment feature for polaris10/11.
  drm/amd/powerplay: need to notify system bios pcie device ready
  drm/amd/powerplay: fix bug that function parameter was incorect.
  drm/amd/powerplay: fix logic error.
  drm: atmel-hlcdc: Fix OF graph parsing
  drm: atmel-hlcdc: actually disable scaling when no scaling is required
  drm/amdgpu: initialize amdgpu_cgs_acpi_eval_object result value
  drm/amdgpu: precedence bug in amdgpu_device_init()
  ...
      0bf0ea43
    • L
      Merge tag 'pci-v4.7-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci · 75befb31
      由 Linus Torvalds 提交于 
      Pull PCI fix from Bjorn Helgaas:
 "Here's a small fix for v4.7.  This problem was actually introduced in
  v4.6 when we unified Kconfig, making PCIe support available everywhere
  including sparc, where config reads into unaligned buffers cause
  warnings.  This fix is from Dave Miller.

  As a reminder, any future PCI fixes for v4.7 will probably come from
  Alex Williamson, since I'll be on vacation for most of the rest of
  this cycle.  I should be back about the time the merge window opens"

* tag 'pci-v4.7-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
  PCI: Fix unaligned accesses in VC code
      75befb31
    • M
      drm/atomic: Make drm_atomic_legacy_backoff reset crtc->acquire_ctx · 81e257e9
      由 Maarten Lankhorst 提交于 
      Atomic updates may acquire more state than initially locked through
drm_modeset_lock_crtc, running with heavy stress can cause a
WARN_ON(crtc->acquire_ctx) in drm_modeset_lock_crtc:

[  601.491296] ------------[ cut here ]------------
[  601.491366] WARNING: CPU: 0 PID: 2411 at
drivers/gpu/drm/drm_modeset_lock.c:191 drm_modeset_lock_crtc+0xeb/0xf0 [drm]
[  601.491369] Modules linked in: drm i915 drm_kms_helper
[  601.491414] CPU: 0 PID: 2411 Comm: kms_cursor_lega Tainted: G     U 4.7.0-rc4-patser+ #4798
[  601.491417] Hardware name: Intel Corporation Skylake Client
[  601.491420]  0000000000000000 ffff88044d153c98 ffffffff812ead28 0000000000000000
[  601.491425]  0000000000000000 ffff88044d153cd8 ffffffff810868e6 000000bf58058030
[  601.491431]  ffff880088b415e8 ffff880458058030 ffff88008a271548 ffff88008a271568
[  601.491436] Call Trace:
[  601.491443]  [<ffffffff812ead28>] dump_stack+0x4d/0x65
[  601.491447]  [<ffffffff810868e6>] __warn+0xc6/0xe0
[  601.491452]  [<ffffffff81086968>] warn_slowpath_null+0x18/0x20
[  601.491472]  [<ffffffffc00d4ffb>] drm_modeset_lock_crtc+0xeb/0xf0 [drm]
[  601.491491]  [<ffffffffc00c5526>] drm_mode_cursor_common+0x66/0x180 [drm]
[  601.491509]  [<ffffffffc00c91cc>] drm_mode_cursor_ioctl+0x3c/0x40 [drm]
[  601.491524]  [<ffffffffc00bc94d>] drm_ioctl+0x14d/0x530 [drm]
[  601.491540]  [<ffffffffc00c9190>] ? drm_mode_setcrtc+0x520/0x520 [drm]
[  601.491545]  [<ffffffff81176aeb>] ? handle_mm_fault+0x106b/0x1430
[  601.491550]  [<ffffffff81108441>] ? stop_one_cpu+0x61/0x70
[  601.491556]  [<ffffffff811bb71d>] do_vfs_ioctl+0x8d/0x570
[  601.491560]  [<ffffffff81290d7e>] ? security_file_ioctl+0x3e/0x60
[  601.491565]  [<ffffffff811bbc74>] SyS_ioctl+0x74/0x80
[  601.491571]  [<ffffffff810e321c>] ? posix_get_monotonic_raw+0xc/0x10
[  601.491576]  [<ffffffff8175b11b>] entry_SYSCALL_64_fastpath+0x13/0x8f
[  601.491581] ---[ end trace 56f3d3d85f000d00 ]---

For good measure, test mode_config.acquire_ctx too, although this should
never happen.

Testcase: kms_cursor_legacy
Signed-off-by: NMaarten Lankhorst <maarten.lankhorst@linux.intel.com>
Reviewed-by: NDaniel Vetter <daniel.vetter@ffwll.ch>
Cc: stable@vger.kernel.org
Signed-off-by: NDave Airlie <airlied@redhat.com>
      81e257e9
    • D
      Merge branch 'drm-fixes-4.7' of git://people.freedesktop.org/~agd5f/linux into drm-fixes · f939a5f4
      由 Dave Airlie 提交于 
      A bit bigger than I would normally like, but most of the large changes are
for polaris support and since polaris went upstream in 4.7, I'd like
to get the fixes in so it's in good shape when the hw becomes available.
The major changes only touch the polaris code so there is little chance
for regressions on other asics.  The rest are just the usual collection
of bug fixes.

* 'drm-fixes-4.7' of git://people.freedesktop.org/~agd5f/linux:
  drm/amd/powerplay: enable clock stretch feature for polaris
  drm/amdgpu/gfx8: update golden setting for polaris10
  drm/amd/powerplay: enable avfs feature for polaris
  drm/amdgpu/atombios: add avfs struct for Polaris10/11
  drm/amd/powerplay: add avfs related define for polaris
  drm/amd/powrplay: enable stutter_mode for polaris.
  drm/amd/powerplay: disable UVD SMU handshake for MCLK.
  drm/amd/powerplay: initialize variables which were missed.
  drm/amd/powerplay: enable PowerContainment feature for polaris10/11.
  drm/amd/powerplay: need to notify system bios pcie device ready
  drm/amd/powerplay: fix bug that function parameter was incorect.
  drm/amd/powerplay: fix logic error.
  drm/amdgpu: initialize amdgpu_cgs_acpi_eval_object result value
  drm/amdgpu: precedence bug in amdgpu_device_init()
  drm/amdgpu: fix num_rbs exposed to userspace (v2)
  drm/amdgpu: missing bounds check in amdgpu_set_pp_force_state()
      f939a5f4
    • D
      Merge branch 'exynos-drm-fixes' of... · c65c3de6
      由 Dave Airlie 提交于 
      Merge branch 'exynos-drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos into drm-fixes

Since HW trigger mode was suppoted we have faced with a issue
that Display panel didn't work correctly when trigger mode was changed
in booting time.
For this, we keep trigger mode with SW trigger mode in default mode
like we did before.

However, we will need to consider PSR(Panel Self Reflash) mode to resolve
this issue fundamentally later.

* 'exynos-drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos:
  drm/exynos: use logical AND in exynos_drm_plane_check_size()
  drm/exynos: remove superfluous inclusions of fbdev header
  drm/exynos: g2d: drop the _REG postfix from the stride defines
  drm/exynos: don't use HW trigger for Exynos5420/5422/5800
  drm/exynos: fimd: don't set .has_hw_trigger in s3c6400 driver data
  drm/exynos: dp: Fix NULL pointer dereference due uninitialized connector
      c65c3de6
    • D
      Merge tag 'drm-atmel-hlcdc-fixes/for-4.7-rc5' of github.com:bbrezillon/linux-at91 into drm-fixes · 59b0b70f
      由 Dave Airlie 提交于 
      Two bug fixes for the atmel-hlcdc driver.

* tag 'drm-atmel-hlcdc-fixes/for-4.7-rc5' of github.com:bbrezillon/linux-at91:
  drm: atmel-hlcdc: Fix OF graph parsing
  drm: atmel-hlcdc: actually disable scaling when no scaling is required
      59b0b70f
    • D
      Merge tag 'sunxi-drm-fixes-for-4.7' of... · f762bfda
      由 Dave Airlie 提交于 
      Merge tag 'sunxi-drm-fixes-for-4.7' of https://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux into drm-fixes

Allwinner sun4i DRM driver fixes

A bunch of fixes that address:
  - Compilation errors in various corner cases
  - Move to helpers
  - Fix the pixel clock computation
  - Fix our panel probe

* tag 'sunxi-drm-fixes-for-4.7' of https://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux:
  drm: sun4i: do cleanup if RGB output init fails
  drm/sun4i: Convert to connector register helpers
  drm/sun4i: remove simplefb at probe
  drm/sun4i: rgb: panel is an error pointer
  drm/sun4i: defer only if we didn't find our panel
  drm/sun4i: rgb: Validate the clock rate
  drm/sun4i: request exact rates to our parents
  drm: sun4i: fix probe error handling
  drm: sun4i: print DMA address correctly
  drm/sun4i: add COMMON_CLK dependency
      f762bfda
    • D
      Merge tag 'drm-intel-fixes-2016-06-22' of git://anongit.freedesktop.org/drm-intel into drm-fixes · c38e8016
      由 Dave Airlie 提交于 
       Hi Dave, just a couple of display fixes, both stable stuff. Maybe we'll
be able to enable fbc by default one day.

* tag 'drm-intel-fixes-2016-06-22' of git://anongit.freedesktop.org/drm-intel:
  drm/i915/fbc: Disable on HSW by default for now
  drm/i915: Revert DisplayPort fast link training feature
      c38e8016
    • D
      Merge branch 'linux-4.7' of git://github.com/skeggsb/linux into drm-fixes · 718cc664
      由 Dave Airlie 提交于 
      * 'linux-4.7' of git://github.com/skeggsb/linux:
  drm/nouveau: fix for disabled fbdev emulation
      718cc664
    • D
      drm/nouveau: fix for disabled fbdev emulation · 52dfcc5c
      由 Dmitrii Tcvetkov 提交于 
      Hello,

after this commit:

commit f045f459
Author: Ben Skeggs <bskeggs@redhat.com>
Date:   Thu Jun 2 12:23:31 2016 +1000
    drm/nouveau/fbcon: fix out-of-bounds memory accesses

kernel started to oops when loading nouveau module when using GTX 780 Ti
video adapter. This patch fixes the problem.

Bug report: https://bugzilla.kernel.org/show_bug.cgi?id=120591Signed-off-by: NDmitrii Tcvetkov <demfloro@demfloro.ru>
Suggested-by: NIlia Mirkin <imirkin@alum.mit.edu>
Fixes: f045f459 ("nouveau_fbcon_init()")
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>
Cc: stable@vger.kernel.org
      52dfcc5c
    • L
      x86: avoid avoid passing around 'thread_info' in stack dumping code · da01e18a
      由 Linus Torvalds 提交于 
      None of the code actually wants a thread_info, it all wants a
task_struct, and it's just converting to a thread_info pointer much too
early.

No semantic change.
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
      da01e18a
    • L
      locking: avoid passing around 'thread_info' in mutex debugging code · 6720a305
      由 Linus Torvalds 提交于 
      None of the code actually wants a thread_info, it all wants a
task_struct, and it's just converting back and forth between the two
("ti->task" to get the task_struct from the thread_info, and
"task_thread_info(task)" to go the other way).

No semantic change.
Acked-by: NPeter Zijlstra <peterz@infradead.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
      6720a305
  5. 23 6月, 2016 8 次提交
    • K
      UBIFS: Implement ->migratepage() · 4ac1c17b
      由 Kirill A. Shutemov 提交于 
      During page migrations UBIFS might get confused
and the following assert triggers:
[  213.480000] UBIFS assert failed in ubifs_set_page_dirty at 1451 (pid 436)
[  213.490000] CPU: 0 PID: 436 Comm: drm-stress-test Not tainted 4.4.4-00176-geaa802524636-dirty #1008
[  213.490000] Hardware name: Allwinner sun4i/sun5i Families
[  213.490000] [<c0015e70>] (unwind_backtrace) from [<c0012cdc>] (show_stack+0x10/0x14)
[  213.490000] [<c0012cdc>] (show_stack) from [<c02ad834>] (dump_stack+0x8c/0xa0)
[  213.490000] [<c02ad834>] (dump_stack) from [<c0236ee8>] (ubifs_set_page_dirty+0x44/0x50)
[  213.490000] [<c0236ee8>] (ubifs_set_page_dirty) from [<c00fa0bc>] (try_to_unmap_one+0x10c/0x3a8)
[  213.490000] [<c00fa0bc>] (try_to_unmap_one) from [<c00fadb4>] (rmap_walk+0xb4/0x290)
[  213.490000] [<c00fadb4>] (rmap_walk) from [<c00fb1bc>] (try_to_unmap+0x64/0x80)
[  213.490000] [<c00fb1bc>] (try_to_unmap) from [<c010dc28>] (migrate_pages+0x328/0x7a0)
[  213.490000] [<c010dc28>] (migrate_pages) from [<c00d0cb0>] (alloc_contig_range+0x168/0x2f4)
[  213.490000] [<c00d0cb0>] (alloc_contig_range) from [<c010ec00>] (cma_alloc+0x170/0x2c0)
[  213.490000] [<c010ec00>] (cma_alloc) from [<c001a958>] (__alloc_from_contiguous+0x38/0xd8)
[  213.490000] [<c001a958>] (__alloc_from_contiguous) from [<c001ad44>] (__dma_alloc+0x23c/0x274)
[  213.490000] [<c001ad44>] (__dma_alloc) from [<c001ae08>] (arm_dma_alloc+0x54/0x5c)
[  213.490000] [<c001ae08>] (arm_dma_alloc) from [<c035cecc>] (drm_gem_cma_create+0xb8/0xf0)
[  213.490000] [<c035cecc>] (drm_gem_cma_create) from [<c035cf20>] (drm_gem_cma_create_with_handle+0x1c/0xe8)
[  213.490000] [<c035cf20>] (drm_gem_cma_create_with_handle) from [<c035d088>] (drm_gem_cma_dumb_create+0x3c/0x48)
[  213.490000] [<c035d088>] (drm_gem_cma_dumb_create) from [<c0341ed8>] (drm_ioctl+0x12c/0x444)
[  213.490000] [<c0341ed8>] (drm_ioctl) from [<c0121adc>] (do_vfs_ioctl+0x3f4/0x614)
[  213.490000] [<c0121adc>] (do_vfs_ioctl) from [<c0121d30>] (SyS_ioctl+0x34/0x5c)
[  213.490000] [<c0121d30>] (SyS_ioctl) from [<c000f2c0>] (ret_fast_syscall+0x0/0x34)

UBIFS is using PagePrivate() which can have different meanings across
filesystems. Therefore the generic page migration code cannot handle this
case correctly.
We have to implement our own migration function which basically does a
plain copy but also duplicates the page private flag.
UBIFS is not a block device filesystem and cannot use buffer_migrate_page().

Cc: stable@vger.kernel.org
Signed-off-by: NKirill A. Shutemov <kirill.shutemov@linux.intel.com>
[rw: Massaged changelog, build fixes, etc...]
Signed-off-by: NRichard Weinberger <richard@nod.at>
Acked-by: NChristoph Hellwig <hch@lst.de>
      4ac1c17b
    • R
      mm: Export migrate_page_move_mapping and migrate_page_copy · 1118dce7
      由 Richard Weinberger 提交于 
      Export these symbols such that UBIFS can implement
->migratepage.

Cc: stable@vger.kernel.org
Signed-off-by: NRichard Weinberger <richard@nod.at>
Acked-by: NChristoph Hellwig <hch@lst.de>
      1118dce7
    • R
      ubi: Make recover_peb power cut aware · 972228d8
      由 Richard Weinberger 提交于 
      recover_peb() was never power cut aware,
if a power cut happened right after writing the VID header
upon next attach UBI would blindly use the new partial written
PEB and all data from the old PEB is lost.

In order to make recover_peb() power cut aware, write the new
VID with a proper crc and copy_flag set such that the UBI attach
process will detect whether the new PEB is completely written
or not.
We cannot directly use ubi_eba_atomic_leb_change() since we'd
have to unlock the LEB which is facing a write error.

Cc: stable@vger.kernel.org
Reported-by: NJörg Pfähler <pfaehler@isse.de>
Reviewed-by: NJörg Pfähler <pfaehler@isse.de>
Signed-off-by: NRichard Weinberger <richard@nod.at>
      972228d8
    • L
      gpio: make library immune to error pointers · c0a1ecb9
      由 Linus Walleij 提交于 
      Most functions that take a GPIO descriptor in need to check the
descriptor for IS_ERR(). We do this mostly in the VALIDATE_DESC()
macro except for the gpiod_to_irq() function which needs special
handling.

Cc: stable@vger.kernel.org
Reported-by: NGrygorii Strashko <grygorii.strashko@ti.com>
Reviewed-by: NGrygorii Strashko <grygorii.strashko@ti.com>
Acked-by: NAlexandre Courbot <acourbot@nvidia.com>
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>
      c0a1ecb9
    • L
      gpio: make sure gpiod_to_irq() returns negative on NULL desc · 39243ee7
      由 Linus Walleij 提交于 
      commit 54d77198
("gpio: bail out silently on NULL descriptors")
doesn't work for gpiod_to_irq(): drivers assume that NULL
descriptors will give negative IRQ numbers in return.

It has been pointed out that returning 0 is NO_IRQ and that
drivers should be amended to treat this as an error, but that
is for the longer term: now let us repair the semantics.

Cc: Maxime Ripard <maxime.ripard@free-electrons.com>
Reported-by: NHans de Goede <hdegoede@redhat.com>
Tested-by: NHans de Goede <hdegoede@redhat.com>
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>
      39243ee7
    • A
      gpio: 104-idi-48: Fix missing spin_lock_init for ack_lock · 0b305ccc
      由 Axel Lin 提交于 
      Fixes: 9ae48210 ("gpio: 104-idi-48: Clear pending interrupt once in IRQ handler")
Signed-off-by: NAxel Lin <axel.lin@ingics.com>
Acked-by: NWilliam Breathitt Gray <vilhelm.gray@gmail.com>
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>
      0b305ccc
    • L
      Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace · f9020d17
      由 Linus Torvalds 提交于 
      Pull userns fix from Eric Biederman:
 "This contains just a single small patch that fixes a tiny hole in the
  logic of allowing unprivileged mounting of proc and sysfs.

  In practice I don't think anyone is affected because having MNT_RDONLY
  clear in mnt->mnt_flags but MS_RDONLY set in sb->s_flags is very weird
  for a filesystem, and weirder for proc and sysfs.  However if it
  happens let's handle it correctly and then no one has to to worry
  about this crazy case"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace:
  mnt: Account for MS_RDONLY in fs_fully_visible
      f9020d17
    • L
      Merge tag 'gpio-v4.7-4' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio · 144b5ae3
      由 Linus Torvalds 提交于 
      Pull GPIO fixes from Linus Walleij:
 "More GPIO fixes.  Most prominent the gpiod_to_irq() fix brought to my
  attention by Hans de Goede.  The hardening patch is a consequence of
  the reasoning around that bug.

   - It was discovered that too many parts of the kernel does not
     respect gpiod_to_irq() returning zero for an invalid IRQ.  While
     this gets fixed, we need to make it return negative errorcodes
     again.

   - Harden the library a bit when passed error pointers.  It is a bug
     to use these, but let's be helpful and warn the users.

   - Fix an uninitialized spinlock in the 104-idi-48 driver"

* tag 'gpio-v4.7-4' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio:
  gpio: make library immune to error pointers
  gpio: make sure gpiod_to_irq() returns negative on NULL desc
  gpio: 104-idi-48: Fix missing spin_lock_init for ack_lock
      144b5ae3
  7. 22 6月, 2016 2 次提交
  9. 21 6月, 2016 15 次提交