Commit Graph

574576 Commits

Author SHA1 Message Date
Imre Deak 441388a8a7 drm/mst: Don't ignore the MST PBN self-test result
Otherwise this call would have no effect.

Caught by Coverity.

Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: David Weinehall <david.weinehall@intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2016-02-05 15:23:48 +10:00
Insu Yun dabe19540a drm: fix missing reference counting decrease
In drm_dp_mst_allocate_vcpi, it returns true in two paths,
but in one path, there is no reference couting decrease.

Signed-off-by: Insu Yun <wuninsu@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
2016-02-05 15:23:48 +10:00
Dave Airlie c745884b30 Merge branch 'drm-fixes-4.5' of git://people.freedesktop.org/~agd5f/linux into drm-fixes
- fix and enable iceland/topaz support
- handle WC on platforms that don't support it

* 'drm-fixes-4.5' of git://people.freedesktop.org/~agd5f/linux:
  drm/amdgpu: disable uvd and vce clockgating on Fiji
  drm/amdgpu: remove exp hardware support from iceland
  drm/amdgpu: load MEC ucode manually on iceland
  drm/amdgpu: don't load MEC2 on topaz
  drm/amdgpu: drop topaz support from gmc8 module
  drm/amdgpu: pull topaz gmc bits into gmc_v7
  drm/amdgpu: The VI specific EXE bit should only apply to GMC v8.0 above
  drm/amdgpu: iceland use CI based MC IP
  drm/amdgpu: move gmc7 support out of CIK dependency
  drm/amdgpu/gfx7: enable cp inst/reg error interrupts
  drm/amdgpu/gfx8: enable cp inst/reg error interrupts
  drm/amdgpu: mask out WC from BO on unsupported arches
  drm/radeon: mask out WC from BO on unsupported arches
  drm: add helper to check for wc memory support
  drm/amdgpu: no need to load MC firmware on fiji
2016-02-05 14:48:36 +10:00
Dave Airlie ec71f1284a Merge tag 'drm-amdkfd-fixes-2016-01-28' of git://people.freedesktop.org/~gabbayo/linux into drm-fixes
two static checker fixes.

* tag 'drm-amdkfd-fixes-2016-01-28' of git://people.freedesktop.org/~gabbayo/linux:
  drm/amdkfd: Remove unnecessary cast in kfree
  drm/amdgpu: fix non-ANSI declaration of amdgpu_amdkfd_gfx_*_get_functions()
2016-02-05 14:47:24 +10:00
Dave Airlie 07c8fedd70 Merge branch 'exynos-drm-fixes' of git://git.kernel.org:/pub/scm/linux/kernel/git/daeinki/drm-exynos into drm-fixes
Just regression fixes.
   - Fix build warning and error without PM configuration
   - Fix no display issue on Snow board reported by Michal Suchanek,
     http://www.spinics.net/lists/dri-devel/msg99473.html

* 'exynos-drm-fixes' of git://git.kernel.org:/pub/scm/linux/kernel/git/daeinki/drm-exynos:
  drm/exynos: dp: Fix panel and bridge lookup logic
  drm: exynos: make PM functions as __maybe_unused
  drm/exynos: fix building without CONFIG_PM_SLEEP
2016-02-05 14:45:44 +10:00
Dave Airlie c6b431cc59 Merge branch 'drm/adv7511' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux into drm-fixes
misc adv7511 edid reading fixes.

* 'drm/adv7511' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
  drm: adv7511: it's HPD, not HDP
  drm: adv7511: mark ADV7511_REG_EDID_READ_CTRL volatile
  drm: adv7511: really enable interrupts for EDID detection
2016-02-05 14:44:16 +10:00
Dave Airlie 87d0f93961 Merge tag 'drm-intel-fixes-2016-02-04' of git://anongit.freedesktop.org/drm-intel into drm-fixes
misc i915 fixes.

* tag 'drm-intel-fixes-2016-02-04' of git://anongit.freedesktop.org/drm-intel:
  drm/i915: refine qemu south bridge detection
  drm/i915: Remove select to deleted STOP_MACHINE from Kconfig
  drm/i915: Fix NULL plane->fb oops on SKL
  drm/i915: Don't reject primary plane windowing with color keying enabled on SKL+
  drm/i915/dp: fall back to 18 bpp when sink capability is unknown
  drm/i915: Make sure DC writes are coherent on flush.
2016-02-05 14:43:35 +10:00
Joe Lawrence 89140fdaf1 xhci: harden xhci_find_next_ext_cap against device removal
xhci_find_next_ext_cap doesn't check for PCI hotplug removal and may use
the PCI master abort bit pattern (~0) to calculate a new PCI address
offset to read/write.  The has lead to reproducable crashes when testing
surprise removal during device initialization on a Stratus platform, at
least after commit d5ddcdf4d6 ("xhci: rework xhci extended capability
list parsing functions").

The crash is repeatable on a Stratus platform when injecting hardware
faults to induce xHCI host controller hotplug during driver
initialization.  If a PCI read in xhci_find_next_ext_cap returns the
master abort pattern, quirk_usb_handoff_xhci may start using a bogus
ext_cap_offset to start searching more bogus PCI addresses.

Signed-off-by: Joe Lawrence <joe.lawrence@stratus.com>
Acked-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-04 17:00:10 -08:00
Linus Torvalds df48ab3c2f arm64 fixes:
- Add missing PAN toggling in the futex code
 
 - Fix missing #include that briefly caused issues in -next
 
 - Allow changing of vmalloc permissions with set_memory_* (used by bpf)
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

Pull arm64 fixes from Will Deacon:
 "Nothing particularly interesting here, but all important fixes
  nonetheless:

   - Add missing PAN toggling in the futex code

   - Fix missing #include that briefly caused issues in -next

   - Allow changing of vmalloc permissions with set_memory_* (used by
     bpf)"

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  arm64: asm: Explicitly include linux/personality.h in asm/page.h
  arm64: futex.h: Add missing PAN toggling
  arm64: allow vmalloc regions to be set with set_memory_*
2016-02-04 14:09:55 -08:00
Dinh Nguyen 381a65c21a ARM: multi_v7_defconfig: enable DW_WATCHDOG
The watchdog timer on the SoCFPGA platform is the Synopsys Designware watchdog.
Enable CONFIG_DW_WATCHDOG for the driver to get built.

Signed-off-by: Dinh Nguyen <dinguyen@opensource.altera.com>
Tested-by: Kevin Hilman <khilman@baylibre.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
2016-02-04 13:25:33 -08:00
Linus Walleij 418d551656 ARM: nomadik: fix up SD/MMC DT settings
The DTSI file for the Nomadik does not properly specify how the
PL180 levelshifter is connected: the Nomadik actually needs all
the five st,sig-dir-* flags set to properly control all lines out.

Further this board supports full power cycling of the card, and
since this variant has no hardware clock gating, it needs a
ridiculously low frequency setting to keep up with the ever
overflowing FIFO.

The pin configuration set-up is a bit of a mystery, because of
course these pins are a mix of inputs and outputs. However the
reference implementation sets all pins to "output" with
unspecified initial value, so let's do that here as well.

Cc: stable@vger.kernel.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
2016-02-04 13:24:08 -08:00
Greg Kroah-Hartman 207b08b942 usb: fixes for v4.5-rc2
DWC3 got a fix for OTG Certification, DWC2 has two fixes for regressions on
 RasPI, MUSB has a NULL pointer dereference fix for ux500 platforms and two
 PHYs (MSM and MXS) got some minor fixes.
 
 While at that, I'm also adding a fix to my email address which has changed
 recently.
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Merge tag 'fixes-for-v4.5-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-linus

Felipe writes:

usb: fixes for v4.5-rc2

DWC3 got a fix for OTG Certification, DWC2 has two fixes for regressions on
RasPI, MUSB has a NULL pointer dereference fix for ux500 platforms and two
PHYs (MSM and MXS) got some minor fixes.

While at that, I'm also adding a fix to my email address which has changed
recently.
2016-02-04 13:07:23 -08:00
Linus Torvalds 5787c25240 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/shli/md
Pull MD fix from Shaohua Li:
 "As you know, Neil steps down from MD.  I'm looking after it.  Here are
  some patches queued.

  A build fix from Gayatri and several trival patches from me"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/shli/md:
  md-cluster: delete useless code
  md-cluster: fix missing memory free
  raid6/algos.c : bug fix : Add the missing definitions to the pq.h file
  MD: add myself as MD maintainer
  MD: rename some functions
2016-02-04 11:50:15 -08:00
Linus Torvalds 04d740d5f5 4.5-rc2 fixes
- One minor fix to the ib core
 - Four minor fixes to the Mellanox drivers
 - Remove three deprecated drivers from staging/rdma now that all of Greg's
   queued changes to them are merged
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma

Pull rdma fixes from Doug Ledford:
 - One minor fix to the ib core
 - Four minor fixes to the Mellanox drivers
 - Remove three deprecated drivers from staging/rdma now that all of
   Greg's queued changes to them are merged

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma:
  staging/rdma: remove deprecated ipath driver
  staging/rdma: remove deprecated ehca driver
  staging/rdma: remove deprecated amso1100 driver
  IB/core: Set correct payload length for RoCEv2 over IPv6
  IB/mlx5: Use MLX5_GET to correctly get end of padding mode
  IB/mlx5: Fix use of null pointer PD
  IB/mlx5: Fix reqlen validation in mlx5_ib_alloc_ucontext
  IB/mlx5: Add CREATE_CQ and CREATE_QP to uverbs_ex_cmd_mask
2016-02-04 11:18:22 -08:00
Mauro Carvalho Chehab ac75fe5d8f [media] saa7134-alsa: Only frees registered sound cards
That prevents this bug:
[ 2382.269496] BUG: unable to handle kernel NULL pointer dereference at 0000000000000540
[ 2382.270013] IP: [<ffffffffa01fe616>] snd_card_free+0x36/0x70 [snd]
[ 2382.270013] PGD 0
[ 2382.270013] Oops: 0002 [#1] SMP
[ 2382.270013] Modules linked in: saa7134_alsa(-) tda1004x saa7134_dvb videobuf2_dvb dvb_core tda827x tda8290 tuner saa7134 tveeprom videobuf2_dma_sg videobuf2_memops videobuf2_v4l2 videobuf2_core v4l2_common videodev media auth_rpcgss nfsv4 dns_resolver nfs lockd grace sunrpc tun bridge stp llc ebtables ip6table_filter ip6_tables nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack nf_conntrack it87 hwmon_vid snd_hda_codec_idt snd_hda_codec_generic iTCO_wdt iTCO_vendor_support snd_hda_intel snd_hda_codec snd_hwdep snd_hda_core snd_seq pcspkr i2c_i801 snd_seq_device snd_pcm snd_timer lpc_ich snd mfd_core soundcore binfmt_misc i915 video i2c_algo_bit drm_kms_helper drm r8169 ata_generic serio_raw pata_acpi mii i2c_core [last unloaded: videobuf2_memops]
[ 2382.270013] CPU: 0 PID: 4899 Comm: rmmod Not tainted 4.5.0-rc1+ #4
[ 2382.270013] Hardware name: PCCHIPS P17G/P17G, BIOS 080012  05/14/2008
[ 2382.270013] task: ffff880039c38000 ti: ffff88003c764000 task.ti: ffff88003c764000
[ 2382.270013] RIP: 0010:[<ffffffffa01fe616>]  [<ffffffffa01fe616>] snd_card_free+0x36/0x70 [snd]
[ 2382.270013] RSP: 0018:ffff88003c767ea0  EFLAGS: 00010286
[ 2382.270013] RAX: ffff88003c767eb8 RBX: 0000000000000000 RCX: 0000000000006260
[ 2382.270013] RDX: ffffffffa020a060 RSI: ffffffffa0206de1 RDI: ffff88003c767eb0
[ 2382.270013] RBP: ffff88003c767ed8 R08: 0000000000019960 R09: ffffffff811a5412
[ 2382.270013] R10: ffffea0000d7c200 R11: 0000000000000000 R12: ffff88003c767ea8
[ 2382.270013] R13: 00007ffe760617f7 R14: 0000000000000000 R15: 0000557625d7f1e0
[ 2382.270013] FS:  00007f80bb1c0700(0000) GS:ffff88003f400000(0000) knlGS:0000000000000000
[ 2382.270013] CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 2382.270013] CR2: 0000000000000540 CR3: 000000003c00f000 CR4: 00000000000006f0
[ 2382.270013] Stack:
[ 2382.270013]  000000003c767ed8 ffffffff00000000 ffff880000000000 ffff88003c767eb8
[ 2382.270013]  ffff88003c767eb8 ffffffffa049a890 00007ffe76060060 ffff88003c767ef0
[ 2382.270013]  ffffffffa049889d ffffffffa049a500 ffff88003c767f48 ffffffff8111079c
[ 2382.270013] Call Trace:
[ 2382.270013]  [<ffffffffa049889d>] saa7134_alsa_exit+0x1d/0x780 [saa7134_alsa]
[ 2382.270013]  [<ffffffff8111079c>] SyS_delete_module+0x19c/0x1f0
[ 2382.270013]  [<ffffffff8170fc2e>] entry_SYSCALL_64_fastpath+0x12/0x71
[ 2382.270013] Code: 20 a0 48 c7 c6 e1 6d 20 a0 48 89 e5 41 54 53 4c 8d 65 d0 48 89 fb 48 83 ec 28 c7 45 d0 00 00 00 00 49 8d 7c 24 08 e8 7a 55 ed e0 <4c> 89 a3 40 05 00 00 48 89 df e8 eb fd ff ff 85 c0 75 1a 48 8d
[ 2382.270013] RIP  [<ffffffffa01fe616>] snd_card_free+0x36/0x70 [snd]
[ 2382.270013]  RSP <ffff88003c767ea0>
[ 2382.270013] CR2: 0000000000000540

Cc: stable@vger.kernel.org
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-02-04 16:26:10 -02:00
Ilya Dryomov b0b31a8ffe libceph: MOSDOpReply v7 encoding
Empty request_redirect_t (struct ceph_request_redirect in the kernel
client) is now encoded with a bool.  NEW_OSDOPREPLY_ENCODING feature
bit overlaps with already supported CRUSH_TUNABLES5.

Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Reviewed-by: Sage Weil <sage@redhat.com>
2016-02-04 18:26:08 +01:00
Ilya Dryomov 97db9a8818 libceph: advertise support for TUNABLES5
Add TUNABLES5 feature (chooseleaf_stable tunable) to a set of features
supported by default.

Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Reviewed-by: Sage Weil <sage@redhat.com>
2016-02-04 18:26:04 +01:00
Ilya Dryomov b9b519b78c crush: decode and initialize chooseleaf_stable
Also add missing \n while at it.

Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Reviewed-by: Sage Weil <sage@redhat.com>
2016-02-04 18:25:58 +01:00
Ilya Dryomov dc6ae6d8e7 crush: add chooseleaf_stable tunable
Add a tunable to fix the bug that chooseleaf may cause unnecessary pg
migrations when some device fails.

Reflects ceph.git commit fdb3f664448e80d984470f32f04e2e6f03ab52ec.

Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Reviewed-by: Sage Weil <sage@redhat.com>
2016-02-04 18:25:55 +01:00
Ilya Dryomov 56a4f3091d crush: ensure take bucket value is valid
Ensure that the take argument is a valid bucket ID before indexing the
buckets array.

Reflects ceph.git commit 93ec538e8a667699876b72459b8ad78966d89c61.

Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Reviewed-by: Sage Weil <sage@redhat.com>
2016-02-04 18:25:50 +01:00
Ilya Dryomov f224a6915f crush: ensure bucket id is valid before indexing buckets array
We were indexing the buckets array without verifying the index was
within the [0,max_buckets) range.  This could happen because
a multistep rule does not have enough buckets and has CRUSH_ITEM_NONE
for an intermediate result, which would feed in CRUSH_ITEM_NONE and
make us crash.

Reflects ceph.git commit 976a24a326da8931e689ee22fce35feab5b67b76.

Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Reviewed-by: Sage Weil <sage@redhat.com>
2016-02-04 18:25:23 +01:00
Yan, Zheng db6aed7023 ceph: fix snap context leak in error path
Signed-off-by: Yan, Zheng <zyan@redhat.com>
2016-02-04 18:25:15 +01:00
Dan Carpenter 1418bf076d ceph: checking for IS_ERR instead of NULL
ceph_osdc_alloc_request() returns NULL on error, it never returns error
pointers.

Fixes: 5be0389dac ('ceph: re-send AIO write request when getting -EOLDSNAP error')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2016-02-04 18:25:08 +01:00
Takashi Iwai 094fd3be87 ALSA: timer: Fix leftover link at closing
In ALSA timer core, the active timer instance is managed in
active_list linked list.  Each element is added / removed dynamically
at timer start, stop and in timer interrupt.  The problem is that
snd_timer_interrupt() has a thinko and leaves the element in
active_list when it's the last opened element.  This eventually leads
to list corruption or use-after-free error.

This hasn't been revealed because we used to delete the list forcibly
in snd_timer_stop() in the past.  However, the recent fix avoids the
double-stop behavior (in commit [f784beb75ce8: ALSA: timer: Fix link
corruption due to double start or stop]), and this leak hits reality.

This patch fixes the link management in snd_timer_interrupt().  Now it
simply unlinks no matter which stream is.

BugLink: http://lkml.kernel.org/r/CACT4Y+Yy2aukHP-EDp8-ziNqNNmb-NTf=jDWXMP7jB8HDa2vng@mail.gmail.com
Reported-by: Dmitry Vyukov <dvyukov@google.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2016-02-04 17:19:09 +01:00
Mauro Carvalho Chehab 1f2c450185 [media] vb2-core: call threadio->fnc() if !VB2_BUF_STATE_ERROR
changeset 70433a152f ("media: videobuf2: Refactor vb2_fileio_data
and vb2_thread") broke videobuf2-dvb.

The root cause is that, instead of calling threadio->fnc() for
all types of events except for VB2_BUF_STATE_ERROR, it was calling
it only for VB2_BUF_STATE_DONE.

With that, the DVB thread were never called.

Cc: stable@vger.kernel.org # Kernel >= 4.3
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-02-04 09:15:51 -02:00
Hans Verkuil fac710e45d [media] vb2: fix nasty vb2_thread regression
The vb2_thread implementation was made generic and was moved from
videobuf2-v4l2.c to videobuf2-core.c in commit af3bac1a. Unfortunately
that clearly was never tested since it broke read() causing NULL address
references.

The root cause was confused handling of vb2_buffer vs v4l2_buffer (the pb
pointer in various core functions).

The v4l2_buffer no longer exists after moving the code into the core and
it is no longer needed. However, the vb2_thread code passed a pointer to
a vb2_buffer to the core functions were a v4l2_buffer pointer was expected
and vb2_thread expected that the vb2_buffer fields would be filled in
correctly.

This is obviously wrong since v4l2_buffer != vb2_buffer. Note that the
pb pointer is a void pointer, so no type-checking took place.

This patch fixes this problem:

1) allow pb to be NULL for vb2_core_(d)qbuf. The vb2_thread code will use
   a NULL pointer here since they don't care about v4l2_buffer anyway.
2) let vb2_core_dqbuf pass back the index of the received buffer. This is
   all vb2_thread needs: this index is the index into the q->bufs array
   and vb2_thread just gets the vb2_buffer from there.
3) the fileio->b pointer (that originally contained a v4l2_buffer) is
   removed altogether since it is no longer needed.

Tested with vivid and the cobalt driver.

Cc: stable@vger.kernel.org # Kernel >= 4.3
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Reported-by: Matthias Schwarzott <zzam@gentoo.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-02-04 09:13:46 -02:00
Mauro Carvalho Chehab e8beb02343 [media] tda1004x: only update the frontend properties if locked
The tda1004x was updating the properties cache before locking.
If the device is not locked, the data at the registers are just
random values with no real meaning.

This caused the driver to fail with libdvbv5, as such library
calls GET_PROPERTY from time to time, in order to return the
DVB stats.

Tested with a saa7134 card 78:
	ASUSTeK P7131 Dual, vendor PCI ID: 1043:4862

Cc: stable@vger.kernel.org
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-02-04 09:10:45 -02:00
Shaohua Li 9ea064158f Merge branch 'mymd/for-next' into mymd/for-linus 2016-02-03 15:43:59 -08:00
Mathias Nyman 5c82171167 xhci: Fix list corruption in urb dequeue at host removal
xhci driver frees data for all devices, both usb2 and and usb3 the
first time usb_remove_hcd() is called, including td_list and and xhci_ring
structures.

When usb_remove_hcd() is called a second time for the second xhci bus it
will try to dequeue all pending urbs, and touches td_list which is already
freed for that endpoint.

Cc: <stable@vger.kernel.org>
Reported-by: Joe Lawrence <joe.lawrence@stratus.com>
Tested-by: Joe Lawrence <joe.lawrence@stratus.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-03 14:01:47 -08:00
Gregory CLEMENT 2ad294d5f9 usb: host: xhci-plat: fix NULL pointer in probe for device tree case
During probe, in the device tree case, the data pointer associated to a
compatible is dereferenced. However, not all the compatibles are
associated to a private data pointer.

The generic-xhci and the xhci-platform don't need them, this patch adds a
test on the data pointer before accessing it, avoiding a kernel crash.

Fixes: 4efb2f6941 ("usb: host: xhci-plat: add struct xhci_plat_priv")
Cc: stable@vger.kernel.org
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-03 14:01:47 -08:00
Chunfeng Yun 882fa27f48 usb: xhci-mtk: fix AHB bus hang up caused by roothubs polling
when ip fails to enter sleep mode, register access protection will
be disabled, at the same time if all clocks are disabled, access
register will hang up AHB bus.
the common case causes ip sleep failure is that after all ports
enter U3 but before ip enters sleep mode, a port receives a resume
signal('K'). this will happens when such as clicks mouse to try to
do remote-wakeup to stop system enter suspend.
so stop polling root hubs to avoid access xHCI register on bus
suspend, and restart it when bus resumes.

Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-03 14:01:47 -08:00
Chunfeng Yun b765a16a11 usb: xhci-mtk: fix bpkts value of LS/HS periodic eps not behind TT
when a LS or FS device doesn't connect though a HS hub,
the @bPkts field of its periodic endpoint context should
be set to 1.

Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-03 14:01:47 -08:00
Lu Baolu ccc04afb72 usb: xhci: apply XHCI_PME_STUCK_QUIRK to Intel Broxton-M platforms
Intel Broxton M was verifed to require XHCI_PME_STUCK_QUIRK quirk as well.

Cc: stable@vger.kernel.org
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-03 14:01:47 -08:00
Lu Baolu 92149c930c usb: xhci: set SSIC port unused only if xhci_suspend succeeds
XHCI_SSIC_PORT_UNUSED quirk was applied to the xHCI host controllers
in some Intel SoC chips.  With this quirk applied, SSIC port is set
to "unused" prior to xhci_suspend(). This may cause problem if host
fails to suspend.  In this case, the port is set to unused without
host further entering D3, and the port will not be usable anymore.

Cc: stable@vger.kernel.org
Signed-off-by: Zhuang Jin Can <jin.can.zhuang@intel.com>
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-03 14:01:47 -08:00
Lu Baolu 7e70cbffe2 usb: xhci: add a quirk bit for ssic port unused
Two workarounds introduced by commit b8cb91e058 ("xhci: Workaround
for PME stuck issues in Intel xhci") and commit abce329c27 ("xhci:
Workaround to get D3 working in Intel xHCI") share a single quirk bit
XHCI_PME_STUCK_QUIRK. These two workarounds actually are different and
might happen on different hardwares. Need to separate them by adding a
quirk bit for the later.

Cc: stable@vger.kernel.org
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-03 14:01:47 -08:00
Lu Baolu fa89537783 usb: xhci: handle both SSIC ports in PME stuck quirk
Commit abce329c27 ("xhci: Workaround to get D3 working in Intel xHCI")
adds a workaround for a limitation of PME storm caused by SSIC port in
some Intel SoCs. This commit only handled one SSIC port, while there
are actually two SSIC ports in the chips. This patch handles both SSIC
ports. Without this fix, users still see PME storm.

Cc: stable@vger.kernel.org # v4.2+
Signed-off-by: Zhuang Jin Can <jin.can.zhuang@intel.com>
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-03 14:01:47 -08:00
Jianqiang Tang 6a4290cc28 usb: dwc3: gadget: set the OTG flag in dwc3 gadget driver.
This patch is needed in order to pass one test case
defined in the OTG Automated Compliance Test specification.

Specification location:
http://www.usb.org/developers/onthego/otgeh_compliance_plan_1_2.pdf

This test case uses PET Tool, and PET Tool is one USB hardware
equipment provided by MQP Electronics.

Test case id is 6.8.3 B-UUT Bypass Capacitance.

We must set this otg flag in order to be able to return OTG
descriptor during enumeration, otherwise this test case with
failed with below error: "Get OTG descriptor request stalled".

Signed-off-by: Jianqiang Tang <jianqiang.tang@intel.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
2016-02-03 23:58:20 +02:00
Mathias Nyman a683509071 Revert "xhci: don't finish a TD if we get a short-transfer event mid TD"
This reverts commit e210c422b6 ("xhci: don't finish a TD if we get a
short transfer event mid TD")

Turns out that most host controllers do not follow the xHCI specs and never
send the second event for the last TRB in the TD if there was a short event
mid-TD.

Returning the URB directly after the first short-transfer event is far
better than never returning the URB. (class drivers usually timeout
after 30sec). For the hosts that do send the second event we will go
back to treating it as misplaced event and print an error message for it.

The origial patch was sent to stable kernels and needs to be reverted from
there as well

Cc: stable@vger.kernel.org
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-03 13:55:42 -08:00
Felipe Balbi a55f628657 MAINTAINERS: fix my email address
As I'm not working for Texas Instruments anymore,
balbi@ti.com isn't a valid address. I'll be using
balbi@kernel.org at least for the time being.

Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
2016-02-03 23:52:33 +02:00
Mark Brown 3e275c64a9 arm64: asm: Explicitly include linux/personality.h in asm/page.h
asm/page.h uses READ_IMPLIES_EXEC from linux/personality.h but does not
explicitly include it causing build failures in -next where whatever was
causing it to be implicitly included has changed to remove that
inclusion.  Add an explicit inclusion to fix this.

Signed-off-by: Mark Brown <broonie@kernel.org>
[will: moved #include inside #ifndef __ASSEMBLY__ block]
Signed-off-by: Will Deacon <will.deacon@arm.com>
2016-02-03 19:22:02 +00:00
Alex Deucher 6357b75a5c drm/amdgpu: disable uvd and vce clockgating on Fiji
Doesn't work properly yet.

Reviewed-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Sonny Jiang <sonny.jiang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-02-03 13:49:51 -05:00
John Youn 192cb07f79 usb: dwc2: Fix probe problem on bcm2835
Fixes an issue found on Raspberry PI platform that prevents probe. Don't
skip setting the force mode if it's already set.

Fixes: 09c96980dc ("usb: dwc2: Add functions to set and clear force mode")
Tested-by: Heiko Stuebner <heiko@sntech.de>
Tested-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: John Youn <johnyoun@synopsys.com>
Reported-by: Stefan Wahren <stefan.wahren@i2se.com>
Reported-by: Remi Pommarel <repk@triplefau.lt>
Tested-by: Stefan Wahren <stefan.wahren@i2se.com>
Tested-by: Remi Pommarel <repk@triplefau.lt>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
2016-02-03 20:15:49 +02:00
John Youn 03b32e4c9b Revert "usb: dwc2: Move reset into dwc2_get_hwparams()"
This reverts commit 263b7fb557 ("usb: dwc2: Move reset into
dwc2_get_hwparams()") due to regression found on bcm2835 platform. USB
ethernet fails, due to being unable to pick up proper parameters when
performing a plain reset before reading hw params.

Below shows the results of the gnptxfsiz and hptxfsiz with and before
and after reverting this (from Stefan Wahren):

So here is the probe result before Patch 1 is applied:

[    1.283148] dwc2 20980000.usb: Configuration mismatch. dr_mode forced to host
[    1.313894] dwc2 20980000.usb: gnptxfsiz=00201000
[    1.314104] dwc2 20980000.usb: hptxfsiz=00000000
[    1.353908] dwc2 20980000.usb: 256 invalid for host_nperio_tx_fifo_size. Check HW configuration.
[    1.354262] dwc2 20980000.usb: 512 invalid for host_perio_tx_fifo_size. Check HW configuration.
[    1.394249] dwc2 20980000.usb: DWC OTG Controller
[    1.394561] dwc2 20980000.usb: new USB bus registered, assigned bus number 1
[    1.394917] dwc2 20980000.usb: irq 33, io mem 0x00000000

And here is the probe result after Patch 1 is applied:

[    1.280107] dwc2 20980000.usb: Configuration mismatch. dr_mode forced to host
[    1.353949] dwc2 20980000.usb: gnptxfsiz=01001000
[    1.354166] dwc2 20980000.usb: hptxfsiz=02002000
[    1.434301] dwc2 20980000.usb: DWC OTG Controller
[    1.434616] dwc2 20980000.usb: new USB bus registered, assigned bus number 1
[    1.434973] dwc2 20980000.usb: irq 33, io mem 0x00000000

Tested-by: Heiko Stuebner <heiko@sntech.de>
Tested-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: John Youn <johnyoun@synopsys.com>
Reported-by: Stefan Wahren <stefan.wahren@i2se.com>
Reported-by: Remi Pommarel <repk@triplefau.lt>
Tested-by: Stefan Wahren <stefan.wahren@i2se.com>
Tested-by: Remi Pommarel <repk@triplefau.lt>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
2016-02-03 20:15:19 +02:00
Rafael J. Wysocki e79aee49bc PM: Avoid false-positive warnings in dev_pm_domain_set()
There is a WARN_ON() in dev_pm_domain_set() that triggers on attempts
to set the pm_domain pointer for devices with a driver bound.

However, that WARN_ON() triggers on attempts to clear the pointer
too and the test it uses is based on checking the device's
p->knode_driver pointer which still is set when the device bus
type's/driver's ->remove callback has been executed.  This
leads to false-positive warnings when bus type code calls
dev_pm_domain_set() to clear the pm_domain pointer after
invoking the driver's ->remove() callback.

To avoid those false-positives, make dev_pm_domain_set() check
if the pointer passed to it is NULL and skip the warning in
that case.

Fixes: 989561de9b (PM / Domains: add setter for dev.pm_domain)
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Tested-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Tested-by: Sinan Kaya <okaya@codeaurora.org>
Tested-by: Steven Rostedt <rostedt@goodmis.org>
Acked-by: Ulf Hansson <ulf.hansson@linaro.org>
2016-02-03 19:10:37 +01:00
Linus Torvalds b37a05c083 Merge branch 'akpm' (patches from Andrew)
Merge fixes from Andrew Morton:
 "18 fixes"

[ The 18 fixes turned into 17 commits, because one of the fixes was a
  fix for another patch in the series that I just folded in by editing
  the patch manually - hopefully correctly     - Linus ]

* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
  mm: fix memory leak in copy_huge_pmd()
  drivers/hwspinlock: fix race between radix tree insertion and lookup
  radix-tree: fix race in gang lookup
  mm/vmpressure.c: fix subtree pressure detection
  mm: polish virtual memory accounting
  mm: warn about VmData over RLIMIT_DATA
  Documentation: cgroup-v2: add memory.stat::sock description
  mm: memcontrol: drop superfluous entry in the per-memcg stats array
  drivers/scsi/sg.c: mark VMA as VM_IO to prevent migration
  proc: revert /proc/<pid>/maps [stack:TID] annotation
  numa: fix /proc/<pid>/numa_maps for hugetlbfs on s390
  MAINTAINERS: update Seth email
  ocfs2/cluster: fix memory leak in o2hb_region_release
  lib/test-string_helpers.c: fix and improve string_get_size() tests
  thp: limit number of object to scan on deferred_split_scan()
  thp: change deferred_split_count() to return number of THP in queue
  thp: make split_queue per-node
2016-02-03 10:10:02 -08:00
Linus Torvalds d5bfb96bda Fix a compile error on IPMI when ACPI is disabled.
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Merge tag 'for-linus-4.5-2' of git://git.code.sf.net/p/openipmi/linux-ipmi

Pull IPMI fix from Corey Minyard:
 "Fix a compile error on IPMI when ACPI is disabled"

* tag 'for-linus-4.5-2' of git://git.code.sf.net/p/openipmi/linux-ipmi:
  ipmi: put acpi.h with the other headers
2016-02-03 10:04:58 -08:00
Ulf Hansson 79c5623f1c usb: musb: ux500: Fix NULL pointer dereference at system PM
The commit 7d32cdef53 ("usb: musb: fail with error when no DMA
controller set"), caused the core platform driver to correctly return an
error code when fail probing.

Unfurtante it also caused bug for a NULL pointer dereference, during
system suspend for the ux500 driver. The reason is a lacking validation
of the corresponding ->driver_data pointer, which won't be set when the
musb core driver fails to probe (or haven't yet been probed).

Fixes: 7d32cdef53 ("usb: musb: fail with error when no DMA...")
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
2016-02-03 20:03:40 +02:00
Li Jun 63b121e3a3 usb: phy: mxs: declare variable with initialized value
Initialize vbus_value to be 0 since it's possible not to assign
any value before judgement.

Acked-by: Peter Chen <peter.chen@nxp.com
Signed-off-by: Li Jun <jun.li@nxp.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
2016-02-03 19:57:41 +02:00
Linus Torvalds 86270c8d7b DeviceTree fixes for 4.5:
- Fix build error with *_OF_DECLARE() when used in modules
 
 - Add missing platform maintainers for dts files in MAINTAINERS
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Merge tag 'devicetree-fixes-for-4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux

Pull DeviceTree fixes from Rob Herring:

 - Fix build error with *_OF_DECLARE() when used in modules

 - Add missing platform maintainers for dts files in MAINTAINERS

* tag 'devicetree-fixes-for-4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
  of: drop symbols declared by _OF_DECLARE() from modules
  MAINTAINERS: Add missing platform maintainers for dts files
2016-02-03 09:55:50 -08:00
Srinivas Kandagatla a38a08dfaa usb: phy: msm: fix error handling in probe.
This driver registers for extcon events as part of its probe, but
never unregisters them in case of error in the probe path.

There were multiple issues noticed due to this missing error handling.
One of them is random crashes if the regulators are not ready yet by the
time probe is invoked.

Ivan's previous attempt [1] to fix this issue, did not really address
all the failure cases like regualtor/get_irq failures.

[1] https://lkml.org/lkml/2015/9/7/62

Without this patch the kernel would carsh with log:
...
Unable to handle kernel paging request at virtual address 17d78410
pgd = ffffffc001a5c000
[17d78410] *pgd=00000000b6806003, *pud=00000000b6806003, *pmd=0000000000000000
Internal error: Oops: 96000005 [#1] PREEMPT SMP
Modules linked in:
CPU: 0 PID: 6 Comm: kworker/u8:0 Not tainted 4.4.0+ #48
Hardware name: Qualcomm Technologies, Inc. APQ 8016 SBC (DT)
Workqueue: deferwq deferred_probe_work_func
task: ffffffc03686e900 ti: ffffffc0368b0000 task.ti: ffffffc0368b0000
PC is at raw_notifier_chain_register+0x1c/0x44
LR is at extcon_register_notifier+0x88/0xc8
pc : [<ffffffc0000da43c>] lr : [<ffffffc000606298>] pstate: 80000085
sp : ffffffc0368b3a70
x29: ffffffc0368b3a70 x28: ffffffc03680c310
x27: ffffffc035518000 x26: ffffffc035518000
x25: ffffffc03bfa20e0 x24: ffffffc035580a18
x23: 0000000000000000 x22: ffffffc035518458
x21: ffffffc0355e9a60 x20: ffffffc035518000
x19: 0000000000000000 x18: 0000000000000028
x17: 0000000000000003 x16: ffffffc0018153c8
x15: 0000000000000001 x14: ffffffc03686f0f8
x13: ffffffc03686f0f8 x12: 0000000000000003
x11: 0000000000000001 x10: 0000000000000001
x9 : ffffffc03686f0f8 x8 : 0000e3872014c1a1
x7 : 0000000000000028 x6 : 0000000000000000
x5 : 0000000000000001 x4 : 0000000000000000
x3 : 00000000354fb170 x2 : 0000000017d78400
x1 : ffffffc0355e9a60 x0 : ffffffc0354fb268

Fixes: 	591fc116f3 ("usb: phy: msm: Use extcon framework for VBUS and ID detection")
CC: Stable <stable@vger.kernel.org>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
2016-02-03 19:52:29 +02:00