openwrt/staging/blogic.git
9 years agodrm/amdgpu: remove the unnecessary parameter adev for amdgpu_sa_bo_new()
Junwei Zhang [Sun, 6 Sep 2015 06:00:46 +0000 (14:00 +0800)]
drm/amdgpu: remove the unnecessary parameter adev for amdgpu_sa_bo_new()

Signed-off-by: Junwei Zhang <Jerry.Zhang@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
9 years agodrm/amdgpu: wait interruptible when semaphores are disabled v2
Christian König [Thu, 10 Sep 2015 13:03:50 +0000 (15:03 +0200)]
drm/amdgpu: wait interruptible when semaphores are disabled v2

Otherwise debugging locked up processes isn't possible.

v2: rebased

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com> (v1)
9 years agodrm/amdgpu: update pd while updating vm as well
Chunming Zhou [Thu, 12 Nov 2015 07:33:09 +0000 (15:33 +0800)]
drm/amdgpu: update pd while updating vm as well

Change-Id: I93a861cd6707f7d91672b9e19757cc50008cd7a2
Signed-off-by: Chunming Zhou <David1.Zhou@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
9 years agodrm/amdgpu: fix handling order in scheduler CS
Christian König [Fri, 13 Nov 2015 12:04:50 +0000 (13:04 +0100)]
drm/amdgpu: fix handling order in scheduler CS

We need to clear parser.ibs and num_ibs before amd_sched_fence_create,
otherwise the IB could be freed twice if fence creates fails.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Chunming Zhou <david1.zhou@amd.com>
9 years agodrm/amdgpu: fix incorrect mutex usage v3
Christian König [Thu, 5 Nov 2015 18:49:48 +0000 (19:49 +0100)]
drm/amdgpu: fix incorrect mutex usage v3

Before this patch the scheduler fence was created when we push the job
into the queue, so we could only get the fence after pushing it.

The mutex now was necessary to prevent the thread pushing the jobs to
the hardware from running faster than the thread pushing the jobs into
the queue.

Otherwise the thread pushing jobs into the queue would have accessed
possible freed up memory when it tries to get a reference to the fence.

So what you get in the end is thread A:
mutex_lock(&job->lock);
...
Kick of thread B.
...
mutex_unlock(&job->lock);

And thread B:
mutex_lock(&job->lock);
....
mutex_unlock(&job->lock);
kfree(job);

I'm actually not sure if I'm still up to date on this, but this usage
pattern used to be not allowed with mutexes. See here as well
https://lwn.net/Articles/575460/.

v2: remove unrelated changes, fix missing owner
v3: rebased, add more commit message

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
9 years agodrm/amdgpu: cleanup scheduler fence get/put dance
Christian König [Fri, 6 Nov 2015 13:09:21 +0000 (14:09 +0100)]
drm/amdgpu: cleanup scheduler fence get/put dance

The code was correct, but getting two references when the ownership
is linearly moved on is a bit awkward and just overhead.

Signed: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
9 years agodrm/amdgpu: add command submission workflow tracepoint
Chunming Zhou [Wed, 11 Nov 2015 06:56:00 +0000 (14:56 +0800)]
drm/amdgpu: add command submission workflow tracepoint

OGL needs these tracepoints to investigate performance issue.

Change-Id: I5e58187d061253f7d665dfce8e4e163ba91d3e2b
Signed-off-by: Chunming Zhou <David1.Zhou@amd.com>
9 years agodrm/amdgpu: update Fiji's tiling mode table
Flora Cui [Thu, 5 Nov 2015 01:50:21 +0000 (09:50 +0800)]
drm/amdgpu: update Fiji's tiling mode table

Change-Id: I925c15015390113f7e27746ec5751eaa6a92c2a7
Signed-off-by: Flora Cui <Flora.Cui@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
9 years agodrm/amdgpu: fix bug that can't enter thermal interrupt for bonaire.
Rex Zhu [Tue, 13 Oct 2015 05:57:52 +0000 (13:57 +0800)]
drm/amdgpu: fix bug that can't enter thermal interrupt for bonaire.

Set reversed bit to enable/disable thermal interrupt.

Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Reviewed-by: Jammy Zhou <Jammy.Zhou@amd.com>
9 years agodrm/amdgpu: fix seq_printf format string
Arnd Bergmann [Tue, 10 Nov 2015 12:17:55 +0000 (13:17 +0100)]
drm/amdgpu: fix seq_printf format string

The amdgpu driver has a debugfs interface that shows the amount of
VRAM in use, but the newly added code causes a build error on
all 32-bit architectures:

drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c:1076:17: warning: format '%lu' expects argument of type 'long unsigned int', but argument 4 has type 'long long int' [-Wformat=]

This fixes the format string to use "%llu" for printing 64-bit
numbers, which works everywhere, as long as we also cast to 'u64'.
Unlike atomic64_t, u64 is defined as 'unsigned long long' on
all architectures.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Fixes: a2ef8a974931 ("drm/amdgpu: add vram usage into debugfs")
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
9 years agodrm/radeon: fix quirk for MSI R7 370 Armor 2X
Maxim Sheviakov [Tue, 10 Nov 2015 18:09:13 +0000 (13:09 -0500)]
drm/radeon: fix quirk for MSI R7 370 Armor 2X

There was a typo in the original.

bug:
https://bugs.freedesktop.org/show_bug.cgi?id=92865

Signed-off-by: Maxim Sheviakov <mrader3940@yandex.ru>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
9 years agodrm/amdgpu: Fix default page access routing
Jay Cornwall [Thu, 5 Nov 2015 19:06:15 +0000 (13:06 -0600)]
drm/amdgpu: Fix default page access routing

The VM default page (used when a VM translation fails) is allocated in
system memory. The VM is misconfigured to interpret the physical address
as referencing a VRAM physical page.

Route default page accesses to system memory.

Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Jay Cornwall <jay@jcornwall.me>
Cc: <stable@vger.kernel.org> # v4.2+
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
9 years agodrm/radeon: unconditionally set sysfs_initialized
Alex Deucher [Tue, 10 Nov 2015 18:01:35 +0000 (13:01 -0500)]
drm/radeon: unconditionally set sysfs_initialized

Avoids spew on resume for systems where sysfs may
fail even on init.

bug:
https://bugzilla.kernel.org/show_bug.cgi?id=106851

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
9 years agodrm/amdgpu: cleanup amdgpu_cs_parser handling
Christian König [Wed, 4 Nov 2015 14:44:39 +0000 (15:44 +0100)]
drm/amdgpu: cleanup amdgpu_cs_parser handling

No need any more to allocate that structure dynamically, just put it on the
stack. This is a start to cleanup some of the scheduler fallouts.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Junwei Zhang <Jerry.Zhang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
9 years agodrm/amdgpu: fix leaking the IBs on error
Christian König [Thu, 5 Nov 2015 16:00:25 +0000 (17:00 +0100)]
drm/amdgpu: fix leaking the IBs on error

Fixing a memory leak when the scheduler is enabled.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Junwei Zhang <Jerry.Zhang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
9 years agodrm/amd: add kmem cache for sched fence
Chunming Zhou [Thu, 5 Nov 2015 03:41:50 +0000 (11:41 +0800)]
drm/amd: add kmem cache for sched fence

Change-Id: I45bb8ff10ef05dc3b15e31a77fbcf31117705f11
Signed-off-by: Chunming Zhou <David1.Zhou@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
9 years agodrm/amdgpu: add kmem cache for amdgpu fence
Chunming Zhou [Thu, 5 Nov 2015 03:28:28 +0000 (11:28 +0800)]
drm/amdgpu: add kmem cache for amdgpu fence

Change-Id: I5ad8dd156ccf27a6f18004aa0a215a0925b6e67b
Signed-off-by: Chunming Zhou <David1.Zhou@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
9 years agodrm/amdgpu: update fiji_mgcg_cgcg_init table
Flora Cui [Thu, 5 Nov 2015 07:24:46 +0000 (15:24 +0800)]
drm/amdgpu: update fiji_mgcg_cgcg_init table

Change-Id: If44b8057741c78208f1976f60f31b535c944d0bd
Signed-off-by: Flora Cui <Flora.Cui@amd.com>
Reviewed-by: Jammy Zhou <Jammy.Zhou@amd.com>
9 years agodrm/amdgpu: use common fence for amdgpu_vm_fence
Christian König [Tue, 3 Nov 2015 13:53:28 +0000 (14:53 +0100)]
drm/amdgpu: use common fence for amdgpu_vm_fence

Just cleanup the function parameters.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Chunming Zhou <david1.zhou@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
9 years agodrm/amdgpu: use fence_is_later() for vm_flush as well v2
Christian König [Thu, 29 Oct 2015 16:01:19 +0000 (17:01 +0100)]
drm/amdgpu: use fence_is_later() for vm_flush as well v2

v2: remove superfluous check

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com> (v1)
Reviewed-by: Chunming Zhou <david1.zhou@amd.com>
9 years agodrm/amdgpu: use a timer for fence fallback
Christian König [Tue, 3 Nov 2015 12:27:39 +0000 (13:27 +0100)]
drm/amdgpu: use a timer for fence fallback

Less overhead than a work item and also adds proper cleanup handling.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Chunming Zhou <david1.zhou@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
9 years agodrm/amdgpu: remove fence trace points
Christian König [Tue, 3 Nov 2015 20:23:08 +0000 (21:23 +0100)]
drm/amdgpu: remove fence trace points

Mostly unused and replaced by the common trace points.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Chunming Zhou <david1.zhou@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
9 years agodrm/amdgpu: update Fiji's mmPA_SC_RASTER_CONFIG value
Flora Cui [Fri, 30 Oct 2015 10:29:46 +0000 (18:29 +0800)]
drm/amdgpu: update Fiji's mmPA_SC_RASTER_CONFIG value

Change-Id: I6d138306a878450e5bf8a77a2f1aacc380a39fe5
Signed-off-by: Flora Cui <Flora.Cui@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
9 years agodrm/radeon: Only prompt for enabling PAT when we'd allow write-combining
Michel Dänzer [Thu, 5 Nov 2015 08:25:28 +0000 (17:25 +0900)]
drm/radeon: Only prompt for enabling PAT when we'd allow write-combining

No use bothering users about this for whom we disable write-combining for
other reasons anyway.

Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
9 years agodrm/radeon: Always disable RADEON_GEM_GTT_UC along with RADEON_GEM_GTT_WC
Michel Dänzer [Thu, 5 Nov 2015 08:25:27 +0000 (17:25 +0900)]
drm/radeon: Always disable RADEON_GEM_GTT_UC along with RADEON_GEM_GTT_WC

Write-combining is a CPU feature. From the GPU POV, these both simply
mean no GPU<->CPU cache coherency.

Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
9 years agodrm/radeon: Disable uncacheable CPU mappings of GTT with RV6xx
Michel Dänzer [Thu, 5 Nov 2015 08:25:26 +0000 (17:25 +0900)]
drm/radeon: Disable uncacheable CPU mappings of GTT with RV6xx

They reportedly cause random GPU hangs.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=91268

Reviewed-by: Christian König <christian.koenig@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
9 years agoRevert "drm/rockchip: Convert the probe function to the generic drm_of_component_probe()"
Mark Yao [Tue, 10 Nov 2015 08:47:19 +0000 (16:47 +0800)]
Revert "drm/rockchip: Convert the probe function to the generic drm_of_component_probe()"

This reverts commit 52f5eb60940de889ce98a876f6933b574ead3225.

Rockchip drm can't work with generic drm_of_component_probe now

Signed-off-by: Mark Yao <mark.yao@rock-chips.com>
Acked-by: Liviu Dudau <Liviu.Dudau@arm.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
9 years agodrm: Don't oops in drm_calc_timestamping_constants() if drm_vblank_init() wasn't...
Ville Syrjälä [Thu, 12 Nov 2015 12:34:18 +0000 (14:34 +0200)]
drm: Don't oops in drm_calc_timestamping_constants() if drm_vblank_init() wasn't called

Seems the crtc helpers call drm_calc_timestamping_constants()
unconditionally even if the driver didn't initialize vblank support by
calling drm_vblank_init(). That used to be OK since the constants were
stored under drm_crtc.

However I broke this with
commit eba1f35dfe14 ("drm: Move timestamping constants into drm_vblank_crtc")
when I moved the constants to live inside the drm_vblank_crtc struct
instead. If drm_vblank_init() isn't called, we don't allocate these
structures, and so drm_calc_timestamping_constants() will oops.

Fix it by adding a check into drm_calc_timestamping_constants() to see
if vblank support was initialized at all. And to keep in line with other
such checks, also toss in a check and warn for the case where vblank
support was initialized, but the wrong number of crtcs was specified.

Fixes the following sort of oops:
 BUG: unable to handle kernel NULL pointer dereference at 00000000000000b0
 IP: [<ffffffffa014b266>] drm_calc_timestamping_constants+0x86/0x130 [drm]
 PGD 0
 Oops: 0002 [#1] SMP
 Modules linked in: sr_mod cdrom mgag200(+) i2c_algo_bit drm_kms_helper ahci syscopyarea sysfillrect sysimgblt libahci fb_sys_fops bnx2x ttm tg3(+) mdio drm ptp sd_mod libata i2c_core pps_core libcrc32c hpsa dm_mirror dm_region_hash dm_log dm_mod
 CPU: 0 PID: 418 Comm: kworker/0:2 Not tainted 4.3.0+ #1
 Hardware name: HP ProLiant DL380 Gen9, BIOS P89 06/09/2015
 Workqueue: events work_for_cpu_fn
 task: ffff88046ca95500 ti: ffff88007830c000 task.ti: ffff88007830c000
 RIP: 0010:[<ffffffffa014b266>]  [<ffffffffa014b266>] drm_calc_timestamping_constants+0x86/0x130 [drm]
 RSP: 0018:ffff88007830f4e8  EFLAGS: 00010246
 RAX: 0000000000fe4c00 RBX: ffff88006a849160 RCX: 0000000000000540
 RDX: 0000000000000000 RSI: 000000000000fde8 RDI: ffff88006a849000
 RBP: ffff88007830f518 R08: ffff88007830c000 R09: 00000001b87e3712
 R10: 00000000000050c4 R11: 0000000000000000 R12: 0000000000fe4c00
 R13: ffff88006a849000 R14: 0000000000000000 R15: 000000000000fde8
 FS:  0000000000000000(0000) GS:ffff88046f800000(0000) knlGS:0000000000000000
 CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
 CR2: 00000000000000b0 CR3: 00000000019d6000 CR4: 00000000001406f0
 Stack:
  ffff88007830f518 ffff88006a849000 ffff880c69b90340 ffff880c69b90000
  ffff880c69b90348 ffff880c69b90340 ffff88007830f748 ffffffffa042f7e7
  ffff88006a849090 0000000000000000 ffff88006a849160 0000000000000000
 Call Trace:
  [<ffffffffa042f7e7>] drm_crtc_helper_set_mode+0x3d7/0x4b0 [drm_kms_helper]
  [<ffffffffa04307d4>] drm_crtc_helper_set_config+0x8d4/0xb10 [drm_kms_helper]
  [<ffffffffa01548d4>] drm_mode_set_config_internal+0x64/0x100 [drm]
  [<ffffffffa043c342>] drm_fb_helper_pan_display+0xa2/0x280 [drm_kms_helper]
  [<ffffffff81392c7b>] fb_pan_display+0xbb/0x170
  [<ffffffff8138cf70>] bit_update_start+0x20/0x50
  [<ffffffff8138b81b>] fbcon_switch+0x39b/0x590
  [<ffffffff8140a3d0>] redraw_screen+0x1a0/0x240
  [<ffffffff8140b30e>] do_bind_con_driver+0x2ee/0x310
  [<ffffffff8140b651>] do_take_over_console+0x141/0x1b0
  [<ffffffff81387377>] do_fbcon_takeover+0x57/0xb0
  [<ffffffff8138c98b>] fbcon_event_notify+0x60b/0x750
  [<ffffffff810a5599>] notifier_call_chain+0x49/0x70
  [<ffffffff810a58dd>] __blocking_notifier_call_chain+0x4d/0x70
  [<ffffffff810a5916>] blocking_notifier_call_chain+0x16/0x20
  [<ffffffff8139282b>] fb_notifier_call_chain+0x1b/0x20
  [<ffffffff81394881>] register_framebuffer+0x1f1/0x330
  [<ffffffffa043d9aa>] drm_fb_helper_initial_config+0x27a/0x3d0 [drm_kms_helper]
  [<ffffffffa0469b4d>] mgag200_fbdev_init+0xdd/0xf0 [mgag200]
  [<ffffffffa0468586>] mgag200_modeset_init+0x176/0x1e0 [mgag200]
  [<ffffffffa0464659>] mgag200_driver_load+0x3f9/0x580 [mgag200]
  [<ffffffffa014e067>] drm_dev_register+0xa7/0xb0 [drm]
  [<ffffffffa015054f>] drm_get_pci_dev+0x8f/0x1e0 [drm]
  [<ffffffffa046937b>] mga_pci_probe+0x9b/0xc0 [mgag200]
  [<ffffffff813662d5>] local_pci_probe+0x45/0xa0
  [<ffffffff8109afe4>] work_for_cpu_fn+0x14/0x20
  [<ffffffff8109e13c>] process_one_work+0x14c/0x3c0
  [<ffffffff8109eaa4>] worker_thread+0x244/0x470
  [<ffffffff8168bfba>] ? __schedule+0x2aa/0x760
  [<ffffffff8109e860>] ? rescuer_thread+0x310/0x310
  [<ffffffff810a4438>] kthread+0xd8/0xf0
  [<ffffffff810a4360>] ? kthread_park+0x60/0x60
  [<ffffffff8169030f>] ret_from_fork+0x3f/0x70
  [<ffffffff810a4360>] ? kthread_park+0x60/0x60
 Code: f6 31 d2 41 89 c2 8b 83 b4 00 00 00 0f af c1 48 98 48 69 c0 40 42 0f 00 48 f7 f6 f6 43 74 10 41 89 c4 75 26 f6 05 9a 6f 03 00 01 <45> 89 96 b0 00 00 00 45 89 a6 ac 00 00 00 75 35 48 83 c4 08 5b
 RIP  [<ffffffffa014b266>] drm_calc_timestamping_constants+0x86/0x130 [drm]
  RSP <ffff88007830f4e8>
 CR2: 00000000000000b0

Cc: Jeff Moyer <jmoyer@redhat.com>
Reported-by: Jeff Moyer <jmoyer@redhat.com>
References: http://lists.freedesktop.org/archives/dri-devel/2015-November/094217.html
Fixes: eba1f35dfe14 ("drm: Move timestamping constants into drm_vblank_crtc")
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
9 years agoMerge tag 'topic/drm-fixes-2015-11-11' of git://anongit.freedesktop.org/drm-intel...
Dave Airlie [Thu, 12 Nov 2015 23:54:31 +0000 (09:54 +1000)]
Merge tag 'topic/drm-fixes-2015-11-11' of git://anongit.freedesktop.org/drm-intel into drm-fixes

Single fix for uapi.

* tag 'topic/drm-fixes-2015-11-11' of git://anongit.freedesktop.org/drm-intel:
  drm: Use userspace compatible type in fourcc_mod_code macro

9 years agoMerge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Linus Torvalds [Thu, 12 Nov 2015 23:33:11 +0000 (15:33 -0800)]
Merge tag 'arm64-fixes' of git://git./linux/kernel/git/arm64/linux

Pull arm64 fixes and clean-ups from Catalin Marinas:
 "Here's a second pull request for this merging window with some
  fixes/clean-ups:

   - __cmpxchg_double*() return type fix to avoid truncation of a long
     to int and subsequent logical "not" in cmpxchg_double()
     misinterpreting the operation success/failure

   - BPF fixes for mod and div by zero

   - Fix compilation with STRICT_MM_TYPECHECKS enabled

   - VDSO build fix without libgcov

   - Some static and __maybe_unused annotations

   - Kconfig clean-up (FRAME_POINTER)

   - defconfig update for CRYPTO_CRC32_ARM64"

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  arm64: suspend: make hw_breakpoint_restore static
  arm64: mmu: make split_pud and fixup_executable static
  arm64: smp: make of_parse_and_init_cpus static
  arm64: use linux/types.h in kvm.h
  arm64: build vdso without libgcov
  arm64: mark cpus_have_hwcap as __maybe_unused
  arm64: remove redundant FRAME_POINTER kconfig option and force to select it
  arm64: fix R/O permissions of FDT mapping
  arm64: fix STRICT_MM_TYPECHECKS issue in PTE_CONT manipulation
  arm64: bpf: fix mod-by-zero case
  arm64: bpf: fix div-by-zero case
  arm64: Enable CRYPTO_CRC32_ARM64 in defconfig
  arm64: cmpxchg_dbl: fix return value type

9 years agoMerge tag 'for-4.4' of git://git.osdn.jp/gitroot/uclinux-h8/linux
Linus Torvalds [Thu, 12 Nov 2015 23:26:39 +0000 (15:26 -0800)]
Merge tag 'for-4.4' of git://git.osdn.jp/gitroot/uclinux-h8/linux

Pull h8300 updates from Yoshinori Sato:
 "Some bug fixes"

* tag 'for-4.4' of git://git.osdn.jp/gitroot/uclinux-h8/linux:
  h8300: enable CLKSRC_OF
  h8300: Don't set CROSS_COMPILE unconditionally
  asm-generic: {get,put}_user ptr argument evaluate only 1 time
  h8300: bit io fix
  h8300: zImage fix
  h8300: register address fix
  h8300: Fix alignment for .data
  h8300: unaligned divcr register support.

9 years agoMerge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Linus Torvalds [Thu, 12 Nov 2015 22:34:06 +0000 (14:34 -0800)]
Merge tag 'for-linus' of git://git./virt/kvm/kvm

Pull second batch of kvm updates from Paolo Bonzini:
 "Four changes:

   - x86: work around two nasty cases where a benign exception occurs
     while another is being delivered.  The endless stream of exceptions
     causes an infinite loop in the processor, which not even NMIs or
     SMIs can interrupt; in the virt case, there is no possibility to
     exit to the host either.

   - x86: support for Skylake per-guest TSC rate.  Long supported by
     AMD, the patches mostly move things from there to common
     arch/x86/kvm/ code.

   - generic: remove local_irq_save/restore from the guest entry and
     exit paths when context tracking is enabled.  The patches are a few
     months old, but we discussed them again at kernel summit.  Andy
     will pick up from here and, in 4.5, try to remove it from the user
     entry/exit paths.

   - PPC: Two bug fixes, see merge commit 370289756becc for details"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (21 commits)
  KVM: x86: rename update_db_bp_intercept to update_bp_intercept
  KVM: svm: unconditionally intercept #DB
  KVM: x86: work around infinite loop in microcode when #AC is delivered
  context_tracking: avoid irq_save/irq_restore on guest entry and exit
  context_tracking: remove duplicate enabled check
  KVM: VMX: Dump TSC multiplier in dump_vmcs()
  KVM: VMX: Use a scaled host TSC for guest readings of MSR_IA32_TSC
  KVM: VMX: Setup TSC scaling ratio when a vcpu is loaded
  KVM: VMX: Enable and initialize VMX TSC scaling
  KVM: x86: Use the correct vcpu's TSC rate to compute time scale
  KVM: x86: Move TSC scaling logic out of call-back read_l1_tsc()
  KVM: x86: Move TSC scaling logic out of call-back adjust_tsc_offset()
  KVM: x86: Replace call-back compute_tsc_offset() with a common function
  KVM: x86: Replace call-back set_tsc_khz() with a common function
  KVM: x86: Add a common TSC scaling function
  KVM: x86: Add a common TSC scaling ratio field in kvm_vcpu_arch
  KVM: x86: Collect information for setting TSC scaling ratio
  KVM: x86: declare a few variables as __read_mostly
  KVM: x86: merge handle_mmio_page_fault and handle_mmio_page_fault_common
  KVM: PPC: Book3S HV: Don't dynamically split core when already split
  ...

9 years agoMerge tag 'pm+acpi-4.4-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael...
Linus Torvalds [Thu, 12 Nov 2015 19:50:33 +0000 (11:50 -0800)]
Merge tag 'pm+acpi-4.4-rc1-2' of git://git./linux/kernel/git/rafael/linux-pm

Pull more power management and ACPI updates from Rafael Wysocki:
 "The only new feature in this batch is support for the ACPI _CCA device
  configuration object, which it a pre-requisite for future ACPI PCI
  support on ARM64, but should not affect the other architectures.

  The rest is fixes and cleanups, mostly in cpufreq (including
  intel_pstate), the Operating Performace Points (OPP) framework and
  tools (cpupower and turbostat).

  Specifics:

   - Support for the ACPI _CCA configuration object intended to tell the
     OS whether or not a bus master device supports hardware managed
     cache coherency and a new set of functions to allow drivers to
     check the cache coherency support for devices in a platform
     firmware interface agnostic way (Suravee Suthikulpanit, Jeremy
     Linton).

   - ACPI backlight quirks for ESPRIMO Mobile M9410 and Dell XPS L421X
     (Aaron Lu, Hans de Goede).

   - Fixes for the arm_big_little and s5pv210-cpufreq cpufreq drivers
     (Jon Medhurst, Nicolas Pitre).

   - kfree()-related fixup for the recently introduced CPPC cpufreq
     frontend (Markus Elfring).

   - intel_pstate fix reducing kernel log noise on systems where
     P-states are managed by hardware (Prarit Bhargava).

   - intel_pstate maintainers information update (Srinivas Pandruvada).

   - cpufreq core optimization related to the handling of delayed work
     items used by governors (Viresh Kumar).

   - Locking fixes and cleanups of the Operating Performance Points
     (OPP) framework (Viresh Kumar).

   - Generic power domains framework cleanups (Lina Iyer).

   - cpupower tool updates (Jacob Tanenbaum, Sriram Raghunathan, Thomas
     Renninger).

   - turbostat tool updates (Len Brown)"

* tag 'pm+acpi-4.4-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (32 commits)
  PCI: ACPI: Add support for PCI device DMA coherency
  PCI: OF: Move of_pci_dma_configure() to pci_dma_configure()
  of/pci: Fix pci_get_host_bridge_device leak
  device property: ACPI: Remove unused DMA APIs
  device property: ACPI: Make use of the new DMA Attribute APIs
  device property: Adding DMA Attribute APIs for Generic Devices
  ACPI: Adding DMA Attribute APIs for ACPI Device
  device property: Introducing enum dev_dma_attr
  ACPI: Honor ACPI _CCA attribute setting
  cpufreq: CPPC: Delete an unnecessary check before the function call kfree()
  PM / OPP: Add opp_rcu_lockdep_assert() to _find_device_opp()
  PM / OPP: Hold dev_opp_list_lock for writers
  PM / OPP: Protect updates to list_dev with mutex
  PM / OPP: Propagate error properly from dev_pm_opp_set_sharing_cpus()
  cpufreq: s5pv210-cpufreq: fix wrong do_div() usage
  MAINTAINERS: update for intel P-state driver
  Creating a common structure initialization pattern for struct option
  cpupower: Enable disabled Cstates if they are below max latency
  cpupower: Remove debug message when using cpupower idle-set -D switch
  cpupower: cpupower monitor reports uninitialized values for offline cpus
  ...

9 years agoarm64: suspend: make hw_breakpoint_restore static
Jisheng Zhang [Thu, 12 Nov 2015 12:04:44 +0000 (20:04 +0800)]
arm64: suspend: make hw_breakpoint_restore static

hw_breakpoint_restore is only used within suspend.c, so it can be
declared static.

Signed-off-by: Jisheng Zhang <jszhang@marvell.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
9 years agoarm64: mmu: make split_pud and fixup_executable static
Jisheng Zhang [Thu, 12 Nov 2015 12:04:43 +0000 (20:04 +0800)]
arm64: mmu: make split_pud and fixup_executable static

split_pud and fixup_executable are only called from within mmu.c, so
they can be declared static.

Signed-off-by: Jisheng Zhang <jszhang@marvell.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
9 years agoarm64: smp: make of_parse_and_init_cpus static
Jisheng Zhang [Thu, 12 Nov 2015 12:04:42 +0000 (20:04 +0800)]
arm64: smp: make of_parse_and_init_cpus static

of_parse_and_init_cpus is only called from within smp.c, so it can be
declared static.

Signed-off-by: Jisheng Zhang <jszhang@marvell.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
9 years agoarm64: use linux/types.h in kvm.h
Arnd Bergmann [Thu, 12 Nov 2015 14:41:08 +0000 (15:41 +0100)]
arm64: use linux/types.h in kvm.h

We should always use linux/types.h instead of asm/types.h for
consistency, and Kbuild actually warns about it:

./usr/include/asm/kvm.h:35: include of <linux/types.h> is preferred over <asm/types.h>

This patch does as Kbuild asks us.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
9 years agoarm64: build vdso without libgcov
Arnd Bergmann [Thu, 12 Nov 2015 14:37:12 +0000 (15:37 +0100)]
arm64: build vdso without libgcov

On a cross-toolchain without glibc support, libgcov may not be
available, and attempting to build an arm64 kernel with GCOV
enabled then results in a build error:

/home/arnd/cross-gcc/lib/gcc/aarch64-linux/5.2.1/../../../../aarch64-linux/bin/ld: cannot find -lgcov

We don't really want to link libgcov into the vdso anyway, so
this patch just disables GCOV in the vdso directory, just as
we do for most other architectures.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
9 years agoarm64: mark cpus_have_hwcap as __maybe_unused
Arnd Bergmann [Thu, 12 Nov 2015 14:20:16 +0000 (15:20 +0100)]
arm64: mark cpus_have_hwcap as __maybe_unused

cpus_have_hwcap() is defined as a 'static' function an only used in
one place that is inside of an #ifdef, so we get a warning when
the only user is disabled:

arch/arm64/kernel/cpufeature.c:699:13: warning: 'cpus_have_hwcap' defined but not used [-Wunused-function]

This marks the function as __maybe_unused, so the compiler knows that
it can drop the function definition without warning about it.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Fixes: 37b01d53ceef ("arm64/HWCAP: Use system wide safe values")
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
9 years agoMerge branch 'kvm-ppc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus...
Paolo Bonzini [Thu, 12 Nov 2015 09:06:29 +0000 (10:06 +0100)]
Merge branch 'kvm-ppc-fixes' of git://git./linux/kernel/git/paulus/powerpc into HEAD

"Paolo,

I have two fixes for HV KVM which I would like to have included in
v4.4-rc1.  The first one is a fix for a bug identified by Red Hat
which causes occasional guest crashes.  The second one fixes a bug
which causes host stalls and timeouts under certain circumstances when
the host is configured for static 2-way micro-threading mode."

9 years agoMerge tag 'xfs-for-linus-4.4' of git://git.kernel.org/pub/scm/linux/kernel/git/dgc...
Linus Torvalds [Thu, 12 Nov 2015 04:18:48 +0000 (20:18 -0800)]
Merge tag 'xfs-for-linus-4.4' of git://git./linux/kernel/git/dgc/linux-xfs

Pull xfs updates from Dave Chinner:
 "There is nothing really major here - the only significant addition is
  the per-mount operation statistics infrastructure.  Otherwises there's
  various ACL, xattr, DAX, AIO and logging fixes, and a smattering of
  small cleanups and fixes elsewhere.

  Summary:

   - per-mount operational statistics in sysfs
   - fixes for concurrent aio append write submission
   - various logging fixes
   - detection of zeroed logs and invalid log sequence numbers on v5 filesystems
   - memory allocation failure message improvements
   - a bunch of xattr/ACL fixes
   - fdatasync optimisation
   - miscellaneous other fixes and cleanups"

* tag 'xfs-for-linus-4.4' of git://git.kernel.org/pub/scm/linux/kernel/git/dgc/linux-xfs: (39 commits)
  xfs: give all workqueues rescuer threads
  xfs: fix log recovery op header validation assert
  xfs: Fix error path in xfs_get_acl
  xfs: optimise away log forces on timestamp updates for fdatasync
  xfs: don't leak uuid table on rmmod
  xfs: invalidate cached acl if set via ioctl
  xfs: Plug memory leak in xfs_attrmulti_attr_set
  xfs: Validate the length of on-disk ACLs
  xfs: invalidate cached acl if set directly via xattr
  xfs: xfs_filemap_pmd_fault treats read faults as write faults
  xfs: add ->pfn_mkwrite support for DAX
  xfs: DAX does not use IO completion callbacks
  xfs: Don't use unwritten extents for DAX
  xfs: introduce BMAPI_ZERO for allocating zeroed extents
  xfs: fix inode size update overflow in xfs_map_direct()
  xfs: clear PF_NOFREEZE for xfsaild kthread
  xfs: fix an error code in xfs_fs_fill_super()
  xfs: stats are no longer dependent on CONFIG_PROC_FS
  xfs: simplify /proc teardown & error handling
  xfs: per-filesystem stats counter implementation
  ...

9 years agoMerge tag 'nfsd-4.4' of git://linux-nfs.org/~bfields/linux
Linus Torvalds [Thu, 12 Nov 2015 04:11:28 +0000 (20:11 -0800)]
Merge tag 'nfsd-4.4' of git://linux-nfs.org/~bfields/linux

Pull nfsd updates from Bruce Fields:
 "Apologies for coming a little late in the merge window.  Fortunately
  this is another fairly quiet one:

  Mainly smaller bugfixes and cleanup.  We're still finding some bugs
  from the breakup of the big NFSv4 state lock in 3.17 -- thanks
  especially to Andrew Elble and Jeff Layton for tracking down some of
  the remaining races"

* tag 'nfsd-4.4' of git://linux-nfs.org/~bfields/linux:
  svcrpc: document lack of some memory barriers
  nfsd: fix race with open / open upgrade stateids
  nfsd: eliminate sending duplicate and repeated delegations
  nfsd: remove recurring workqueue job to clean DRC
  SUNRPC: drop stale comment in svc_setup_socket()
  nfsd: ensure that seqid morphing operations are atomic wrt to copies
  nfsd: serialize layout stateid morphing operations
  nfsd: improve client_has_state to check for unused openowners
  nfsd: fix clid_inuse on mount with security change
  sunrpc/cache: make cache flushing more reliable.
  nfsd: move include of state.h from trace.c to trace.h
  sunrpc: avoid warning in gss_key_timeout
  lockd: get rid of reference-counted NSM RPC clients
  SUNRPC: Use MSG_SENDPAGE_NOTLAST when calling sendpage()
  lockd: create NSM handles per net namespace
  nfsd: switch unsigned char flags in svc_fh to bools
  nfsd: move svc_fh->fh_maxsize to just after fh_handle
  nfsd: drop null test before destroy functions
  nfsd: serialize state seqid morphing operations

9 years agoMerge tag 'devicetree-fixes-for-4.4' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Thu, 12 Nov 2015 03:54:05 +0000 (19:54 -0800)]
Merge tag 'devicetree-fixes-for-4.4' of git://git./linux/kernel/git/robh/linux

Pull DeviceTree fixes from Rob Herring:

 - Add empty of_translate_address needed for HiSilicon network driver.

 - Fix alignment requirements for CMA regions in DT.

 - Fix booting on PPC systems which can't do WARN() early.

 - Rename ak4554 binding doc from .c to .txt.

* tag 'devicetree-fixes-for-4.4' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
  of: Provide static inline function for of_translate_address if needed
  drivers: of: of_reserved_mem: fixup the alignment with CMA setup
  of: Print rather than WARN'ing when overlap check fails
  dt-bindings: ak4554: extension should be .txt

9 years agothermal: rockchip: fix compile error
Caesar Wang [Thu, 12 Nov 2015 03:43:11 +0000 (19:43 -0800)]
thermal: rockchip: fix compile error

Missing a include file caused compile error.

  drivers/thermal/rockchip_thermal.c: In function 'rockchip_thermal_suspend':
  drivers/thermal/rockchip_thermal.c:720:2: error: implicit declaration of function 'pinctrl_pm_select_sleep_state' [-Werror=implicit-function-declaration]
  ...

Fixes: 7e38a5b1daa1 ("thermal: rockchip: support the sleep pinctrl state
to avoid glitches")

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Caesar Wang <wxt@rock-chips.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
9 years agoh8300: enable CLKSRC_OF
Yoshinori Sato [Tue, 3 Nov 2015 17:10:09 +0000 (02:10 +0900)]
h8300: enable CLKSRC_OF

Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp>
9 years agoMerge branch 'pm-tools'
Rafael J. Wysocki [Wed, 11 Nov 2015 23:22:56 +0000 (00:22 +0100)]
Merge branch 'pm-tools'

* pm-tools:
  Creating a common structure initialization pattern for struct option
  cpupower: Enable disabled Cstates if they are below max latency
  cpupower: Remove debug message when using cpupower idle-set -D switch
  cpupower: cpupower monitor reports uninitialized values for offline cpus
  tools/power turbostat: bugfix: print MAX_NON_TURBO_RATIO
  tools/power turbostat: simplify Bzy_MHz calculation

9 years agoMerge branch 'pm-domains'
Rafael J. Wysocki [Wed, 11 Nov 2015 23:22:50 +0000 (00:22 +0100)]
Merge branch 'pm-domains'

* pm-domains:
  PM / Domains: Allocate memory outside domain locks
  PM / Domains: Remove dev->driver check for runtime PM

9 years agoMerge tag 'firewire-update' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394...
Linus Torvalds [Wed, 11 Nov 2015 18:21:34 +0000 (10:21 -0800)]
Merge tag 'firewire-update' of git://git./linux/kernel/git/ieee1394/linux1394

Pull firewire fix from Stefan Richter:
 "Work around JMicron initialization quirk, which ffected isochronous
  transmission, e.g. audio via FFADO or ALSA"

* tag 'firewire-update' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394:
  firewire: ohci: fix JMicron JMB38x IT context discovery

9 years agoMerge branch 'for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Linus Torvalds [Wed, 11 Nov 2015 17:45:24 +0000 (09:45 -0800)]
Merge branch 'for-linus-2' of git://git./linux/kernel/git/viro/vfs

Pull vfs update from Al Viro:

 - misc stable fixes

 - trivial kernel-doc and comment fixups

 - remove never-used block_page_mkwrite() wrapper function, and rename
   the function that is _actually_ used to not have double underscores.

* 'for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  fs: 9p: cache.h: Add #define of include guard
  vfs: remove stale comment in inode_operations
  vfs: remove unused wrapper block_page_mkwrite()
  binfmt_elf: Correct `arch_check_elf's description
  fs: fix writeback.c kernel-doc warnings
  fs: fix inode.c kernel-doc warning
  fs/pipe.c: return error code rather than 0 in pipe_write()
  fs/pipe.c: preserve alloc_file() error code
  binfmt_elf: Don't clobber passed executable's file header
  FS-Cache: Handle a write to the page immediately beyond the EOF marker
  cachefiles: perform test on s_blocksize when opening cache file.
  FS-Cache: Don't override netfs's primary_index if registering failed
  FS-Cache: Increase reference of parent after registering, netfs success
  debugfs: fix refcount imbalance in start_creating

9 years agoMerge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Linus Torvalds [Wed, 11 Nov 2015 17:23:07 +0000 (09:23 -0800)]
Merge branch 'linus' of git://git./linux/kernel/git/herbert/crypto-2.6

Pull crypto fix from Herbert Xu:
 "This fixes a bug in the algif_hash interface that may lead to crashes
  when used with certain algorithms such as HMAC"

* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
  crypto: algif_hash - Only export and import on sockets with data

9 years agoMerge tag 'pwm/for-4.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry...
Linus Torvalds [Wed, 11 Nov 2015 17:16:10 +0000 (09:16 -0800)]
Merge tag 'pwm/for-4.4-rc1' of git://git./linux/kernel/git/thierry.reding/linux-pwm

Pull pwm updates from Thierry Reding:
 "This round contains a couple of new drivers for the Marvell Berlin
  family of SoCs, various SoCs from Renesas and Broadcom as well as the
  backlight PWM present on MediaTek SoCs.

  Further existing drivers are extended to support a wider range of
  hardware.

  The remaining patches are minor fixes and cleanups across the board.

  Note that one of the patches included in this pull request is against
  arch/unicore32.  I've included it here because I couldn't get a
  response from Guan Xuetao and I consider the change low-risk.
  Equivalent patches have been merged and tested in Samsung and PXA
  trees.  The goal is to finally get rid of legacy code paths that have
  repeatedly been causing headaches"

* tag 'pwm/for-4.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm: (24 commits)
  pwm: sunxi: Fix whitespace issue
  pwm: sysfs: Make use of the DEVICE_ATTR_[RW][WO] macro's
  pwm: sysfs: Remove unnecessary temporary variable
  unicore32: nb0916: Use PWM lookup table
  pwm: pwm-rcar: Revise the device tree binding document about compatible
  pwm: Return -ENODEV if no PWM lookup match is found
  pwm: sun4i: Add support for PWM controller on sun5i SoCs
  pwm: Set enable state properly on failed call to enable
  pwm: lpss: Add support for runtime PM
  pwm: lpss: Add more Intel Broxton IDs
  pwm: lpss: Support all four PWMs on Intel Broxton
  pwm: lpss: Add support for multiple PWMs
  pwm-pca9685: enable ACPI device found on Galileo Gen2
  pwm: Add MediaTek display PWM driver support
  dt-bindings: pwm: Add MediaTek display PWM bindings
  pwm: tipwmss: Enable on TI DRA7x and AM437x
  pwm: atmel-hlcdc: add sama5d2 SoC support.
  pwm: Add Broadcom BCM7038 PWM controller support
  Documentation: dt: add Broadcom BCM7038 PWM controller binding
  pwm: Add support for R-Car PWM Timer
  ...

9 years agoMerge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux
Linus Torvalds [Wed, 11 Nov 2015 17:03:01 +0000 (09:03 -0800)]
Merge branch 'next' of git://git./linux/kernel/git/rzhang/linux

Pull thermal updates from Zhang Rui:

 - Implement generic devfreq cooling mechanism through frequency
   reduction for devices using devfreq.  From Ørjan Eide and Javi
   Merino.

 - Introduce OMAP3 support on TI SoC thermal driver.  From Pavel Mack
   and Eduardo Valentin.

 - A bounch of small fixes on devfreq_cooling, Exynos, IMX, Armada, and
   Rockchip thermal drivers.

* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux: (24 commits)
  thermal: exynos: Directly return 0 instead of using local ret variable
  thermal: exynos: Remove unneeded semicolon
  thermal: exynos: Use IS_ERR() because regulator cannot be NULL
  thermal: exynos: Fix first temperature read after registering sensor
  thermal: exynos: Fix unbalanced regulator disable on probe failure
  devfreq_cooling: return on allocation failure
  thermal: rockchip: support the sleep pinctrl state to avoid glitches in s2r
  dt-bindings: rockchip-thermal: Add the pinctrl states in this document
  thermal: devfreq_cooling: Make power a u64
  thermal: devfreq_cooling: use a thermal_cooling_device for register and unregister
  thermal: underflow bug in imx_set_trip_temp()
  thermal: armada: Fix possible overflow in the Armada 380 thermal sensor formula
  thermal: imx: register irq handler later in probe
  thermal: rockhip: fix setting thermal shutdown polarity
  thermal: rockchip: fix handling of invalid readings
  devfreq_cooling: add trace information
  thermal: Add devfreq cooling
  PM / OPP: get the voltage for all OPPs
  tools/thermal: tmon: use pkg-config also for CFLAGS
  linux/thermal.h: rename KELVIN_TO_CELSIUS to DECI_KELVIN_TO_CELSIUS
  ...

9 years agofs: 9p: cache.h: Add #define of include guard
Tzvetelin Katchov [Thu, 8 Oct 2015 00:15:21 +0000 (20:15 -0400)]
fs: 9p: cache.h: Add #define of include guard

The include file was intended to have an include guard, but the #define
part is missing.

Signed-off-by: Tzvetelin Katchov <katchov@gmail.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
9 years agovfs: remove stale comment in inode_operations
Ross Zwisler [Thu, 8 Oct 2015 23:07:20 +0000 (17:07 -0600)]
vfs: remove stale comment in inode_operations

The big warning comment that is currently at the end of struct
inode_operations was added as part of this commit:

4aa7c6346be3 ("vfs: add i_op->dentry_open()")

It was added to warn people not to use the newly added 'dentry_open'
function pointer.

This function pointer was removed as part of this commit:

4bacc9c9234c ("overlayfs: Make f_path always point to the overlay and
f_inode to the underlay")

The comment was left behind and now refers to nothing, so remove it.

Signed-off-by: Ross Zwisler <ross.zwisler@linux.intel.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
9 years agovfs: remove unused wrapper block_page_mkwrite()
Ross Zwisler [Tue, 13 Oct 2015 22:51:02 +0000 (16:51 -0600)]
vfs: remove unused wrapper block_page_mkwrite()

The function currently called "__block_page_mkwrite()" used to be called
"block_page_mkwrite()" until a wrapper for this function was added by:

commit 24da4fab5a61 ("vfs: Create __block_page_mkwrite() helper passing
error values back")

This wrapper, the current "block_page_mkwrite()", is currently unused.
__block_page_mkwrite() is used directly by ext4, nilfs2 and xfs.

Remove the unused wrapper, rename __block_page_mkwrite() back to
block_page_mkwrite() and update the comment above block_page_mkwrite().

Signed-off-by: Ross Zwisler <ross.zwisler@linux.intel.com>
Reviewed-by: Jan Kara <jack@suse.com>
Cc: Jan Kara <jack@suse.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
9 years agobinfmt_elf: Correct `arch_check_elf's description
Maciej W. Rozycki [Mon, 26 Oct 2015 15:47:57 +0000 (15:47 +0000)]
binfmt_elf: Correct `arch_check_elf's description

Correct `arch_check_elf's description, mistakenly copied and pasted from
`arch_elf_pt_proc'.

Signed-off-by: Maciej W. Rozycki <macro@imgtec.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
9 years agofs: fix writeback.c kernel-doc warnings
Randy Dunlap [Fri, 6 Nov 2015 00:54:04 +0000 (16:54 -0800)]
fs: fix writeback.c kernel-doc warnings

Fix kernel-doc warnings in fs/fs-writeback.c by moving a #define macro
to after the function's opening brace. Also #undef this macro at the
end of the function.

..//fs/fs-writeback.c:1984: warning: Excess function parameter 'inode' description in 'I_DIRTY_INODE'
..//fs/fs-writeback.c:1984: warning: Excess function parameter 'flags' description in 'I_DIRTY_INODE'

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
9 years agofs: fix inode.c kernel-doc warning
Randy Dunlap [Fri, 6 Nov 2015 00:53:47 +0000 (16:53 -0800)]
fs: fix inode.c kernel-doc warning

Fix kernel-doc warning in fs/inode.c:

..//fs/inode.c:1606: warning: No description found for parameter 'inode'

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
9 years agofs/pipe.c: return error code rather than 0 in pipe_write()
Eric Biggers [Sat, 17 Oct 2015 21:26:09 +0000 (16:26 -0500)]
fs/pipe.c: return error code rather than 0 in pipe_write()

pipe_write() would return 0 if it failed to merge the beginning of the
data to write with the last, partially filled pipe buffer.  It should
return an error code instead.  Userspace programs could be confused by
write() returning 0 when called with a nonzero 'count'.

The EFAULT error case was a regression from f0d1bec9d5 ("new helper:
copy_page_from_iter()"), while the ops->confirm() error case was a much
older bug.

Test program:

#include <assert.h>
#include <errno.h>
#include <unistd.h>

int main(void)
{
int fd[2];
char data[1] = {0};

assert(0 == pipe(fd));
assert(1 == write(fd[1], data, 1));

/* prior to this patch, write() returned 0 here  */
assert(-1 == write(fd[1], NULL, 1));
assert(errno == EFAULT);
}

Cc: stable@vger.kernel.org # at least v3.15+
Signed-off-by: Eric Biggers <ebiggers3@gmail.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
9 years agofs/pipe.c: preserve alloc_file() error code
Eric Biggers [Sat, 17 Oct 2015 21:26:08 +0000 (16:26 -0500)]
fs/pipe.c: preserve alloc_file() error code

If sys_pipe() was unable to allocate a 'struct file', it always failed
with ENFILE, which means "The number of simultaneously open files in the
system would exceed a system-imposed limit." However, alloc_file()
actually returns an ERR_PTR value and might fail with other error codes.
Currently, in addition to ENFILE, it can fail with ENOMEM, potentially
when there are few open files in the system.  Update sys_pipe() to
preserve this error code.

In a prior submission of a similar patch (1) some concern was raised
about introducing a new error code for sys_pipe().  However, for most
system calls, programs cannot assume that new error codes will never be
introduced.  In addition, ENOMEM was, in fact, already a possible error
code for sys_pipe(), in the case where the file descriptor table could
not be expanded due to insufficient memory.

(1) http://comments.gmane.org/gmane.linux.kernel/1357942

Signed-off-by: Eric Biggers <ebiggers3@gmail.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
9 years agobinfmt_elf: Don't clobber passed executable's file header
Maciej W. Rozycki [Mon, 26 Oct 2015 15:48:19 +0000 (15:48 +0000)]
binfmt_elf: Don't clobber passed executable's file header

Do not clobber the buffer space passed from `search_binary_handler' and
originally preloaded by `prepare_binprm' with the executable's file
header by overwriting it with its interpreter's file header.  Instead
keep the buffer space intact and directly use the data structure locally
allocated for the interpreter's file header, fixing a bug introduced in
2.1.14 with loadable module support (linux-mips.org commit beb11695
[Import of Linux/MIPS 2.1.14], predating kernel.org repo's history).
Adjust the amount of data read from the interpreter's file accordingly.

This was not an issue before loadable module support, because back then
`load_elf_binary' was executed only once for a given ELF executable,
whether the function succeeded or failed.

With loadable module support supported and enabled, upon a failure of
`load_elf_binary' -- which may for example be caused by architecture
code rejecting an executable due to a missing hardware feature requested
in the file header -- a module load is attempted and then the function
reexecuted by `search_binary_handler'.  With the executable's file
header replaced with its interpreter's file header the executable can
then be erroneously accepted in this subsequent attempt.

Cc: stable@vger.kernel.org # all the way back
Signed-off-by: Maciej W. Rozycki <macro@imgtec.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
9 years agoFS-Cache: Handle a write to the page immediately beyond the EOF marker
David Howells [Wed, 4 Nov 2015 15:20:42 +0000 (15:20 +0000)]
FS-Cache: Handle a write to the page immediately beyond the EOF marker

Handle a write being requested to the page immediately beyond the EOF
marker on a cache object.  Currently this gets an assertion failure in
CacheFiles because the EOF marker is used there to encode information about
a partial page at the EOF - which could lead to an unknown blank spot in
the file if we extend the file over it.

The problem is actually in fscache where we check the index of the page
being written against store_limit.  store_limit is set to the number of
pages that we're allowed to store by fscache_set_store_limit() - which
means it's one more than the index of the last page we're allowed to store.
The problem is that we permit writing to a page with an index _equal_ to
the store limit - when we should reject that case.

Whilst we're at it, change the triggered assertion in CacheFiles to just
return -ENOBUFS instead.

The assertion failure looks something like this:

CacheFiles: Assertion failed
1000 < 7b1 is false
------------[ cut here ]------------
kernel BUG at fs/cachefiles/rdwr.c:962!
...
RIP: 0010:[<ffffffffa02c9e83>]  [<ffffffffa02c9e83>] cachefiles_write_page+0x273/0x2d0 [cachefiles]

Cc: stable@vger.kernel.org # v2.6.31+; earlier - that + backport of a17754f (at least)
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
9 years agocachefiles: perform test on s_blocksize when opening cache file.
NeilBrown [Wed, 4 Nov 2015 15:20:34 +0000 (15:20 +0000)]
cachefiles: perform test on s_blocksize when opening cache file.

cachefiles requires that s_blocksize in the cache is not greater than
PAGE_SIZE, and performs the check every time a block is accessed.

Move the test to the place where the file is "opened", where other
file-validity tests are performed.

Signed-off-by: NeilBrown <neilb@suse.de>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
9 years agoFS-Cache: Don't override netfs's primary_index if registering failed
Kinglong Mee [Wed, 4 Nov 2015 15:20:24 +0000 (15:20 +0000)]
FS-Cache: Don't override netfs's primary_index if registering failed

Only override netfs->primary_index when registering success.

Cc: stable@vger.kernel.org # v2.6.30+
Signed-off-by: Kinglong Mee <kinglongmee@gmail.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
9 years agoFS-Cache: Increase reference of parent after registering, netfs success
Kinglong Mee [Wed, 4 Nov 2015 15:20:15 +0000 (15:20 +0000)]
FS-Cache: Increase reference of parent after registering, netfs success

If netfs exist, fscache should not increase the reference of parent's
usage and n_children, otherwise, never be decreased.

v2: thanks David's suggest,
 move increasing reference of parent if success
 use kmem_cache_free() freeing primary_index directly

v3: don't move "netfs->primary_index->parent = &fscache_fsdef_index;"

Cc: stable@vger.kernel.org # v2.6.30+
Signed-off-by: Kinglong Mee <kinglongmee@gmail.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
9 years agodebugfs: fix refcount imbalance in start_creating
Daniel Borkmann [Wed, 4 Nov 2015 23:01:51 +0000 (00:01 +0100)]
debugfs: fix refcount imbalance in start_creating

In debugfs' start_creating(), we pin the file system to safely access
its root. When we failed to create a file, we unpin the file system via
failed_creating() to release the mount count and eventually the reference
of the vfsmount.

However, when we run into an error during lookup_one_len() when still
in start_creating(), we only release the parent's mutex but not so the
reference on the mount. Looks like it was done in the past, but after
splitting portions of __create_file() into start_creating() and
end_creating() via 190afd81e4a5 ("debugfs: split the beginning and the
end of __create_file() off"), this seemed missed. Noticed during code
review.

Fixes: 190afd81e4a5 ("debugfs: split the beginning and the end of __create_file() off")
Cc: stable@vger.kernel.org # v4.0+
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
9 years agoMerge branch 'akpm' (patches from Andrew)
Linus Torvalds [Wed, 11 Nov 2015 05:14:23 +0000 (21:14 -0800)]
Merge branch 'akpm' (patches from Andrew)

Merge final patch-bomb from Andrew Morton:
 "Various leftovers, mainly Christoph's pci_dma_supported() removals"

* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
  pci: remove pci_dma_supported
  usbnet: remove ifdefed out call to dma_supported
  kaweth: remove ifdefed out call to dma_supported
  sfc: don't call dma_supported
  nouveau: don't call pci_dma_supported
  netup_unidvb: use pci_set_dma_mask insted of pci_dma_supported
  cx23885: use pci_set_dma_mask insted of pci_dma_supported
  cx25821: use pci_set_dma_mask insted of pci_dma_supported
  cx88: use pci_set_dma_mask insted of pci_dma_supported
  saa7134: use pci_set_dma_mask insted of pci_dma_supported
  saa7164: use pci_set_dma_mask insted of pci_dma_supported
  tw68-core: use pci_set_dma_mask insted of pci_dma_supported
  pcnet32: use pci_set_dma_mask insted of pci_dma_supported
  lib/string.c: add ULL suffix to the constant definition
  hugetlb: trivial comment fix
  selftests/mlock2: add ULL suffix to 64-bit constants
  selftests/mlock2: add missing #define _GNU_SOURCE

9 years agoMerge branch 'misc' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild
Linus Torvalds [Wed, 11 Nov 2015 05:11:58 +0000 (21:11 -0800)]
Merge branch 'misc' of git://git./linux/kernel/git/mmarek/kbuild

Pull misc kbuild updates from Michal Marek:
 "This is the non-critical part of kbuild:

   - several coccinelle updates
   - make deb-pkg creates an armhf package if CONFIG_VFP=y
   - make tags understands some more powerpc macros"

* 'misc' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild:
  coccinelle: Improve checking for missing NULL terminators
  coccinelle: ifnullfree: handle various destroy functions
  coccinelle: ifnullfree: various cleanups
  cocinelle: iterators: semantic patch to delete unneeded of_node_put
  deb-pkg: Add automatic support for armhf architecture
  scripts/coccinelle: fix typos
  coccinelle: misc: remove "complex return code" warnings
  Coccinelle: fix incorrect -include option transformation
  coccinelle: tests: improve odd_ptr_err.cocci
  coccinelle: misc: move constants to the right
  scripts/tags.sh: Teach tags about some powerpc macros

9 years agoMerge branch 'kconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild
Linus Torvalds [Wed, 11 Nov 2015 05:06:50 +0000 (21:06 -0800)]
Merge branch 'kconfig' of git://git./linux/kernel/git/mmarek/kbuild

Pull kconfig updates from Michal Marek:

 - 'make xconfig' ported to Qt5, dropping support for Qt3

 - merge_config.sh supports a single-input-file mode and also respects
   $KCONFIG_CONFIG

 - Fix for incorrect display of >= and > in dependency expressions

* 'kconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild: (44 commits)
  Add current selection check.
  Use pkg-config to find Qt 4 and 5 instead of direct qmake
  kconfig: Fix copy&paste error
  kconfig/merge_config.sh: Accept a single file
  kconfig/merge_config.sh: Support KCONFIG_CONFIG
  Update the buildsystem for KConfig finding Qt
  Port xconfig to Qt5 - Update copyright.
  Port xconfig to Qt5 - Fix goParent issue.
  Port xconfig to Qt5 - on Back clicked, deselect old item.
  Port xconfig to Qt5 - Add(back) one click checkbox toggle.
  Port xconfig to Qt5 - Add(back) lineedit editing.
  Port xconfig to Qt5 - Remove some commented code.
  Port xconfig to Qt5 - Source format.
  Port xconfig to Qt5 - Add horizontal scrollbar, and scroll per pixel.
  Port xconfig to Qt5 - Change ConfigItem constructor parent type.
  Port xconfig to Qt5 - Disable ConfigList soring
  Port xconfig to Qt5 - Remove ConfigList::updateMenuList template.
  Port xconfig to Qt5 - Add ConfigList::mode to initializer list.
  Port xconfig to Qt5 - Add ConfigItem::nextItem to initializer list.
  Port xconfig to Qt5 - Tree widget set column titles.
  ...

9 years agoMerge branch 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild
Linus Torvalds [Wed, 11 Nov 2015 04:55:37 +0000 (20:55 -0800)]
Merge branch 'kbuild' of git://git./linux/kernel/git/mmarek/kbuild

Pull kbuild update from Michal Marek:
 "The kbuild branch for v4.4-rc1 only has one commit: A new make
  kselftest-clean target cleans tools/testing/selftests"

* 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild:
  kselftest: add kselftest-clean rule

9 years agoMerge tag 'linux-kselftest-4.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Wed, 11 Nov 2015 04:46:45 +0000 (20:46 -0800)]
Merge tag 'linux-kselftest-4.4-rc1' of git://git./linux/kernel/git/shuah/linux-kselftest

Pull kselftest updates from Shuah Khan:
 "This 12 patch update for 4.4-rc1 consists of a new pstore test and
  fixes to existing tests"

* tag 'linux-kselftest-4.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
  selftests: breakpoint: Actually build it
  selftests: vm: Try harder to allocate huge pages
  selftests: Make scripts executable
  selftests: kprobe: Choose an always-defined function to probe
  selftests: memfd: Stop unnecessary rebuilds
  selftests: Add missing #include directives
  selftests/seccomp: Be more precise with syscall arguments.
  selftests/seccomp: build and pass on arm64
  selftests: memfd_test: Revised STACK_SIZE to make it 16-byte aligned
  selftests/pstore: add pstore test scripts going with reboot
  selftests/pstore: add pstore test script for pre-reboot
  selftests: add .gitignore for efivarfs

9 years agoMerge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
Linus Torvalds [Wed, 11 Nov 2015 04:37:28 +0000 (20:37 -0800)]
Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux

Pull drm fixes from Dave Airlie:
 "Two build fixes, one for VC4, one for nouveau where the ARM only code
  is doing something a bit strange.  While people are discussing that,
  just workaround it and fix the build for now.  The code in question
  will never get used on anything non-ARM anyways.

  Also one fix for AST that SuSE had been hiding in their kernel, that
  allows all fbdev apps to work on that driver"

* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
  drm/nouveau: fix build failures on all non ARM.
  drm/ast: Initialized data needed to map fbdev memory
  drm/vc4: Add dependency on HAVE_DMA_ATTRS, and select DRM_GEM_CMA_HELPER

9 years agodrm/nouveau: fix build failures on all non ARM.
Dave Airlie [Mon, 9 Nov 2015 22:36:59 +0000 (08:36 +1000)]
drm/nouveau: fix build failures on all non ARM.

gk20a is an ARM only GPU, so we can just do the correct thing on
ARM but fail on other architectures. The other option was to use
SWIOTLB as the define, which means phys_to_page exists, but
this seems clearer.

Signed-off-by: Dave Airlie <airlied@redhat.com>
9 years agodrm/ast: Initialized data needed to map fbdev memory
Egbert Eich [Wed, 11 Jun 2014 12:59:55 +0000 (14:59 +0200)]
drm/ast: Initialized data needed to map fbdev memory

Due to a missing initialization there was no way to map fbdev memory.
Thus for example using the Xserver with the fbdev driver failed.
This fix adds initialization for fix.smem_start and fix.smem_len
in the fb_info structure, which fixes this problem.

Requested-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: stable@vger.kernel.org
Signed-off-by: Egbert Eich <eich@suse.de>
[pulled from SuSE tree by me - airlied]
Signed-off-by: Dave Airlie <airlied@redhat.com>
9 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Linus Torvalds [Wed, 11 Nov 2015 02:11:41 +0000 (18:11 -0800)]
Merge git://git./linux/kernel/git/davem/net

Pull networking fixes from David Miller:

 1) Fix null deref in xt_TEE netfilter module, from Eric Dumazet.

 2) Several spots need to get to the original listner for SYN-ACK
    packets, most spots got this ok but some were not.  Whilst covering
    the remaining cases, create a helper to do this.  From Eric Dumazet.

 3) Missiing check of return value from alloc_netdev() in CAIF SPI code,
    from Rasmus Villemoes.

 4) Don't sleep while != TASK_RUNNING in macvtap, from Vlad Yasevich.

 5) Use after free in mvneta driver, from Justin Maggard.

 6) Fix race on dst->flags access in dst_release(), from Eric Dumazet.

 7) Add missing ZLIB_INFLATE dependency for new qed driver.  From Arnd
    Bergmann.

 8) Fix multicast getsockopt deadlock, from WANG Cong.

 9) Fix deadlock in btusb, from Kuba Pawlak.

10) Some ipv6_add_dev() failure paths were not cleaning up the SNMP6
    counter state.  From Sabrina Dubroca.

11) Fix packet_bind() race, which can cause lost notifications, from
    Francesco Ruggeri.

12) Fix MAC restoration in qlcnic driver during bonding mode changes,
    from Jarod Wilson.

13) Revert bridging forward delay change which broke libvirt and other
    userspace things, from Vlad Yasevich.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (65 commits)
  Revert "bridge: Allow forward delay to be cfgd when STP enabled"
  bpf_trace: Make dependent on PERF_EVENTS
  qed: select ZLIB_INFLATE
  net: fix a race in dst_release()
  net: mvneta: Fix memory use after free.
  net: Documentation: Fix default value tcp_limit_output_bytes
  macvtap: Resolve possible __might_sleep warning in macvtap_do_read()
  mvneta: add FIXED_PHY dependency
  net: caif: check return value of alloc_netdev
  net: hisilicon: NET_VENDOR_HISILICON should depend on HAS_DMA
  drivers: net: xgene: fix RGMII 10/100Mb mode
  netfilter: nft_meta: use skb_to_full_sk() helper
  net_sched: em_meta: use skb_to_full_sk() helper
  sched: cls_flow: use skb_to_full_sk() helper
  netfilter: xt_owner: use skb_to_full_sk() helper
  smack: use skb_to_full_sk() helper
  net: add skb_to_full_sk() helper and use it in selinux_netlbl_skbuff_setsid()
  bpf: doc: correct arch list for supported eBPF JIT
  dwc_eth_qos: Delete an unnecessary check before the function call "of_node_put"
  bonding: fix panic on non-ARPHRD_ETHER enslave failure
  ...

9 years agoMerge branch 'for-4.4/io-poll' of git://git.kernel.dk/linux-block
Linus Torvalds [Wed, 11 Nov 2015 01:23:49 +0000 (17:23 -0800)]
Merge branch 'for-4.4/io-poll' of git://git.kernel.dk/linux-block

Pull block IO poll support from Jens Axboe:
 "Various groups have been doing experimentation around IO polling for
  (really) fast devices.  The code has been reviewed and has been
  sitting on the side for a few releases, but this is now good enough
  for coordinated benchmarking and further experimentation.

  Currently O_DIRECT sync read/write are supported.  A framework is in
  the works that allows scalable stats tracking so we can auto-tune
  this.  And we'll add libaio support as well soon.  Fow now, it's an
  opt-in feature for test purposes"

* 'for-4.4/io-poll' of git://git.kernel.dk/linux-block:
  direct-io: be sure to assign dio->bio_bdev for both paths
  directio: add block polling support
  NVMe: add blk polling support
  block: add block polling support
  blk-mq: return tag/queue combo in the make_request_fn handlers
  block: change ->make_request_fn() and users to return a queue cookie

9 years agoMerge tag 'upstream-4.4-rc1' of git://git.infradead.org/linux-ubifs
Linus Torvalds [Wed, 11 Nov 2015 00:35:06 +0000 (16:35 -0800)]
Merge tag 'upstream-4.4-rc1' of git://git.infradead.org/linux-ubifs

Pull UBI/UBIFS updates from Richard Weinberger:

 - access time support for UBIFS by Dongsheng Yang

 - random cleanups and bug fixes all over the place

* tag 'upstream-4.4-rc1' of git://git.infradead.org/linux-ubifs:
  ubifs: introduce UBIFS_ATIME_SUPPORT to ubifs
  ubifs: make ubifs_[get|set]xattr atomic
  UBIFS: Delete unnecessary checks before the function call "iput"
  UBI: Remove in vain semicolon
  UBI: Fastmap: Fix PEB array type
  UBIFS: Fix possible memory leak in ubifs_readdir()
  fs/ubifs: remove unnecessary new_valid_dev check
  ubi: fastmap: Implement produce_free_peb()
  UBIFS: print verbose message when rescanning a corrupted node
  UBIFS: call dbg_is_power_cut() instead of reading c->dbg->pc_happened
  UBI: drop null test before destroy functions
  UBI: Update comments to reflect UBI_METAONLY flag
  UBI: Fix debug message
  UBI: Fix typo in comment
  UBI: Fastmap: Simplify expression
  UBIFS: fix a typo in comment of ubifs_budget_req
  UBIFS: use kmemdup rather than duplicating its implementation

9 years agoMerge branch 'for-linus-4.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Wed, 11 Nov 2015 00:33:37 +0000 (16:33 -0800)]
Merge branch 'for-linus-4.4-rc1' of git://git./linux/kernel/git/rw/uml

Pull UML updates from Richard Weinberger:

 - a new hrtimer based clocksource by Anton Ivanov

 - ptrace() enhancments by Richard Weinberger

 - random cleanups and bug fixes all over the place

* 'for-linus-4.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml:
  um: Switch clocksource to hrtimers
  um: net: replace GFP_KERNEL with GFP_ATOMIC when spinlock is held
  um: Report host OOM more nicely
  um: Simplify STUB_DATA loading
  um: Remove dead symbol from i386 syscall stub
  um: Remove dead code from x86_64 syscall stub
  um: Get rid of open coded NR_SYSCALLS
  um: Store syscall number after syscall_trace_enter()
  um: Define PTRACE_OLDSETOPTIONS

9 years agopci: remove pci_dma_supported
Christoph Hellwig [Tue, 10 Nov 2015 22:45:50 +0000 (14:45 -0800)]
pci: remove pci_dma_supported

Signed-off-by: Christoph Hellwig <hch@lst.de>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: Helge Deller <deller@gmx.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
9 years agousbnet: remove ifdefed out call to dma_supported
Christoph Hellwig [Tue, 10 Nov 2015 22:45:47 +0000 (14:45 -0800)]
usbnet: remove ifdefed out call to dma_supported

Signed-off-by: Christoph Hellwig <hch@lst.de>
Cc: Oliver Neukum <oneukum@suse.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
9 years agokaweth: remove ifdefed out call to dma_supported
Christoph Hellwig [Tue, 10 Nov 2015 22:45:44 +0000 (14:45 -0800)]
kaweth: remove ifdefed out call to dma_supported

Signed-off-by: Christoph Hellwig <hch@lst.de>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Oliver Neukum <oliver@neukum.org>
Cc: Alexey Khoroshilov <khoroshilov@ispras.ru>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
9 years agosfc: don't call dma_supported
Christoph Hellwig [Tue, 10 Nov 2015 22:45:42 +0000 (14:45 -0800)]
sfc: don't call dma_supported

dma_set_mask already checks for a supported DMA mask before updating it,
the call to dma_supported is redundant.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Cc: Solarflare linux maintainers <linux-net-drivers@solarflare.com>
Cc: Shradha Shah <sshah@solarflare.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
9 years agonouveau: don't call pci_dma_supported
Christoph Hellwig [Tue, 10 Nov 2015 22:45:39 +0000 (14:45 -0800)]
nouveau: don't call pci_dma_supported

Just try to set a 64-bit DMA mask first and retry with the smaller dma_mask
if dma_set_mask failed.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Cc: David Airlie <airlied@linux.ie>
Cc: Ben Skeggs <bskeggs@redhat.com>
Cc: Alexandre Courbot <acourbot@nvidia.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Thierry Reding <treding@nvidia.com>
Cc: Dave Airlie <airlied@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
9 years agonetup_unidvb: use pci_set_dma_mask insted of pci_dma_supported
Christoph Hellwig [Tue, 10 Nov 2015 22:45:36 +0000 (14:45 -0800)]
netup_unidvb: use pci_set_dma_mask insted of pci_dma_supported

This ensures the dma mask that is supported by the driver is recorded
in the device structure.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Cc: Sergey Kozlov <serjk@netup.ru>
Cc: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
9 years agocx23885: use pci_set_dma_mask insted of pci_dma_supported
Christoph Hellwig [Tue, 10 Nov 2015 22:45:33 +0000 (14:45 -0800)]
cx23885: use pci_set_dma_mask insted of pci_dma_supported

This ensures the dma mask that is supported by the driver is recorded
in the device structure.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Cc: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Cc: Hans Verkuil <hans.verkuil@cisco.com>
Cc: Pawel Osciak <pawel@osciak.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
9 years agocx25821: use pci_set_dma_mask insted of pci_dma_supported
Christoph Hellwig [Tue, 10 Nov 2015 22:45:31 +0000 (14:45 -0800)]
cx25821: use pci_set_dma_mask insted of pci_dma_supported

This ensures the dma mask that is supported by the driver is recorded
in the device structure.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Cc: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Cc: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
9 years agocx88: use pci_set_dma_mask insted of pci_dma_supported
Christoph Hellwig [Tue, 10 Nov 2015 22:45:28 +0000 (14:45 -0800)]
cx88: use pci_set_dma_mask insted of pci_dma_supported

This ensures the dma mask that is supported by the driver is recorded
in the device structure.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Cc: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Cc: Hans Verkuil <hverkuil@xs4all.nl>
Cc: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
9 years agosaa7134: use pci_set_dma_mask insted of pci_dma_supported
Christoph Hellwig [Tue, 10 Nov 2015 22:45:25 +0000 (14:45 -0800)]
saa7134: use pci_set_dma_mask insted of pci_dma_supported

This ensures the dma mask that is supported by the driver is recorded
in the device structure.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Cc: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Cc: Pawel Osciak <pawel@osciak.com>
Cc: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
9 years agosaa7164: use pci_set_dma_mask insted of pci_dma_supported
Christoph Hellwig [Tue, 10 Nov 2015 22:45:23 +0000 (14:45 -0800)]
saa7164: use pci_set_dma_mask insted of pci_dma_supported

This ensures the dma mask that is supported by the driver is recorded
in the device structure.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Cc: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Cc: Hans Verkuil <hverkuil@xs4all.nl>
Cc: Steven Toth <stoth@kernellabs.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
9 years agotw68-core: use pci_set_dma_mask insted of pci_dma_supported
Christoph Hellwig [Tue, 10 Nov 2015 22:45:20 +0000 (14:45 -0800)]
tw68-core: use pci_set_dma_mask insted of pci_dma_supported

This ensures the dma mask that is supported by the driver is recorded
in the device structure.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Cc: Hans Verkuil <hverkuil@xs4all.nl>
Cc: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Cc: Pawel Osciak <pawel@osciak.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
9 years agopcnet32: use pci_set_dma_mask insted of pci_dma_supported
Christoph Hellwig [Tue, 10 Nov 2015 22:45:17 +0000 (14:45 -0800)]
pcnet32: use pci_set_dma_mask insted of pci_dma_supported

All drivers should be using dma_set_mask / pci_set_dma_mask to try to
set the dma mask instead of just querying it.  Without that some iommu
implementations may not work.

pci_dma_supported is removed entirely, but dma_supported stays for
dma_ops implementations for now.

This patch (of 15):

This ensures the dma mask that is supported by the driver is recorded
in the device structure.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Don Fry <pcnet32@frontier.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: Alexandre Courbot <acourbot@nvidia.com>
Cc: Alexey Khoroshilov <khoroshilov@ispras.ru>
Cc: Ben Skeggs <bskeggs@redhat.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Dave Airlie <airlied@redhat.com>
Cc: David Airlie <airlied@linux.ie>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Hans Verkuil <hverkuil@xs4all.nl>
Cc: Helge Deller <deller@gmx.de>
Cc: Jiri Slaby <jslaby@suse.com>
Cc: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Cc: Pawel Osciak <pawel@osciak.com>
Cc: Sakari Ailus <sakari.ailus@linux.intel.com>
Cc: Sergey Kozlov <serjk@netup.ru>
Cc: Shradha Shah <sshah@solarflare.com>
Cc: Solarflare linux maintainers <linux-net-drivers@solarflare.com>
Cc: Steven Toth <stoth@kernellabs.com>
Cc: Thierry Reding <treding@nvidia.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
9 years agolib/string.c: add ULL suffix to the constant definition
Andy Shevchenko [Tue, 10 Nov 2015 22:45:14 +0000 (14:45 -0800)]
lib/string.c: add ULL suffix to the constant definition

8-byte constant is too big for long and compiler complains about this.

  lib/string.c:907:20: warning: constant 0x0101010101010101 is so big it is long

Append ULL suffix to explicitly show its type.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
9 years agohugetlb: trivial comment fix
Naoya Horiguchi [Tue, 10 Nov 2015 22:45:11 +0000 (14:45 -0800)]
hugetlb: trivial comment fix

Recently alloc_buddy_huge_page() was renamed to __alloc_buddy_huge_page(),
so let's sync comments.

Signed-off-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
9 years agoselftests/mlock2: add ULL suffix to 64-bit constants
Geert Uytterhoeven [Tue, 10 Nov 2015 22:45:09 +0000 (14:45 -0800)]
selftests/mlock2: add ULL suffix to 64-bit constants

On 32-bit (e.g. m68k):

    mlock2-tests.c: In function 'lock_check':
    mlock2-tests.c:293: warning: integer constant is too large for 'long' type
    mlock2-tests.c:294: warning: integer constant is too large for 'long' type
    mlock2-tests.c:299: warning: integer constant is too large for 'long' type
    ...

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Eric B Munson <emunson@akamai.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
9 years agoselftests/mlock2: add missing #define _GNU_SOURCE
Geert Uytterhoeven [Tue, 10 Nov 2015 22:45:06 +0000 (14:45 -0800)]
selftests/mlock2: add missing #define _GNU_SOURCE

On glibc 2.3.6:

    mlock2-tests.c: In function 'seek_to_smaps_entry':
    mlock2-tests.c:158: warning: implicit declaration of function 'getline'

According to the manpage of getline(), it needs _GNU_SOURCE before glibc
2.10.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Eric B Munson <emunson@akamai.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
9 years agoMerge tag 'metag-for-v4.4' of git://git.kernel.org/pub/scm/linux/kernel/git/jhogan...
Linus Torvalds [Wed, 11 Nov 2015 00:24:25 +0000 (16:24 -0800)]
Merge tag 'metag-for-v4.4' of git://git./linux/kernel/git/jhogan/metag

Pull metag arch updates from James Hogan:
 "A fix for 4KiB stacks with SMP, and a change of maintenance status to
  'Odd Fixes'"

* tag 'metag-for-v4.4' of git://git.kernel.org/pub/scm/linux/kernel/git/jhogan/metag:
  MAINTAINERS: Change Meta arch port status to Odd Fixes
  metag: Turn irq_ctx_* macros into static inlines
  metag: SMP: Fix 4KiB stack setup on secondary CPUs

9 years agoof: Provide static inline function for of_translate_address if needed
Guenter Roeck [Sat, 7 Nov 2015 03:28:22 +0000 (19:28 -0800)]
of: Provide static inline function for of_translate_address if needed

If OF_ADDRESS is not configured, builds can fail with errors such as

drivers/net/ethernet/hisilicon/hns_mdio.c:
In function 'hns_mdio_bus_name':
drivers/net/ethernet/hisilicon/hns_mdio.c:411:3:
error: implicit declaration of function 'of_translate_address'

as currently seen when building sparc:allmodconfig.

Introduce a static inline function if OF_ADDRESS is not configured to fix
the build failure. Return OF_BAD_ADDR in this case. For this to work, the
definition of OF_BAD_ADDR has to be moved outside CONFIG_OF conditional
code.

Fixes: 876133d3161d ("net: hisilicon: add OF dependency")
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Frank Rowand <frank.rowand@sonymobile.com>
Signed-off-by: Rob Herring <robh@kernel.org>
9 years agodrivers: of: of_reserved_mem: fixup the alignment with CMA setup
Jason Liu [Tue, 10 Nov 2015 12:30:26 +0000 (20:30 +0800)]
drivers: of: of_reserved_mem: fixup the alignment with CMA setup

There is an alignment mismatch issue between the of_reserved_mem and
the CMA setup requirement. The of_reserved_mem will try to get the
alignment value from the DTS and pass it to __memblock_alloc_base to
do the memory block base allocation, but the alignment value specified
in the DTS may not satisfy the CAM setup requirement since CMA setup
required the alignment as the following in the code:

align = PAGE_SIZE << max(MAX_ORDER - 1, pageblock_order);

The sanity check in the function of rmem_cma_setup will fail if the
alignment does not setup correctly and thus CMA will fail to setup.

This patch is to fixup the alignment to meet the CMA setup required.

Mailing-list-thread: https://lkml.org/lkml/2015/11/9/138
Signed-off-by: Jason Liu <r64343@freescale.com>
Acked-by: Marek Szyprowski <m.szyprowski@samsung.com>
Cc: Grant Likely <grant.likely@linaro.org>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: stable@vger.kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
9 years agoof: Print rather than WARN'ing when overlap check fails
Michael Ellerman [Tue, 10 Nov 2015 05:08:33 +0000 (16:08 +1100)]
of: Print rather than WARN'ing when overlap check fails

__rmem_check_for_overlap() is called very early in boot, and on some
powerpc systems it's not safe to call WARN that early in boot.

If the overlap check fails the system will oops instead of printing a
warning. Furthermore because it's so early in boot the console is not up
and the user doesn't see the oops, they just get a dead system.

Fix it by printing an error instead of calling WARN.

Fixes: ae1add247bf8 ("of: Check for overlap in reserved memory regions")
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Rob Herring <robh@kernel.org>
9 years agodt-bindings: ak4554: extension should be .txt
Raphael Poggi [Fri, 6 Nov 2015 21:51:47 +0000 (13:51 -0800)]
dt-bindings: ak4554: extension should be .txt

Signed-off-by: Raphaël Poggi <poggi.raph@gmail.com>
Signed-off-by: Rob Herring <robh@kernel.org>