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  1. 16 Jun, 2015 16 commits
  3. 15 Jun, 2015 7 commits
  5. 14 Jun, 2015 1 commit
    • Linus Torvalds's avatar
      Merge tag 'sound-4.1-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound · 2fbbada1
      Linus Torvalds authored 
      Pull sound fixes from Takashi Iwai:
 "Most of commits are regression fixes for HD-audio: a few corner case
  fixes for regmap transition, and i915 binding issues.

  In addition, a quirk for another USB-audio device supporting DSD"

* tag 'sound-4.1-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ALSA: hda - Abort the probe without i915 binding for HSW/BDW
  ALSA: hda - Re-add the lost fake mute support
  ALSA: hda - Continue probing even if i915 binding fails
  ALSA: hda - Don't actually write registers for caps overwrites
  ALSA: hda - fix number of devices query on hotplug
  ALSA: usb-audio: add native DSD support for JLsounds I2SoverUSB
      2fbbada1
  7. 13 Jun, 2015 3 commits
    • Jaedon Shin's avatar
      MPI: MIPS: Fix compilation error with GCC 5.1 · 36f58113
      Jaedon Shin authored 
      This patch fixes mips compilation error:

lib/mpi/generic_mpih-mul1.c: In function 'mpihelp_mul_1':
lib/mpi/longlong.h:651:2: error: impossible constraint in 'asm'
Signed-off-by: default avatarJaedon Shin <jaedon.shin@gmail.com>
Cc: Linux-MIPS <linux-mips@linux-mips.org>
Patchwork: https://patchwork.linux-mips.org/patch/10546/Signed-off-by: default avatarRalf Baechle <ralf@linux-mips.org>
      36f58113
    • Rabin Vincent's avatar
      IRQCHIP: mips-gic: Don't nest calls to do_IRQ() · 1b3ed367
      Rabin Vincent authored 
      The GIC chained handlers use do_IRQ() to call the subhandlers.  This
means that irq_enter() calls get nested, which leads to preempt count
looking like we're in nested interrupts, which in turn leads to all
system time being accounted as IRQ time in account_system_time().

Fix it by using generic_handle_irq().  Since these same functions are
used in some systems (if cpu_has_veic) from a low-level vectored
interrupt handler which does not go throught do_IRQ(), we need to do it
conditionally.
Signed-off-by: default avatarRabin Vincent <rabin.vincent@axis.com>
Reviewed-by: default avatarAndrew Bresticker <abrestic@chromium.org>
Acked-by: default avatarThomas Gleixner <tglx@linutronix.de>
Cc: linux-mips@linux-mips.org
Cc: tglx@linutronix.de
Cc: jason@lakedaemon.net
Patchwork: https://patchwork.linux-mips.org/patch/10545/Signed-off-by: default avatarRalf Baechle <ralf@linux-mips.org>
      1b3ed367
    • Linus Torvalds's avatar
      Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net · c8d17b45
      Linus Torvalds authored 
      Pull networking fixes from David Miller:

 1) Fix uninitialized struct station_info in cfg80211_wireless_stats(),
    from Johannes Berg.

 2) Revert commit attempt to fix ipv6 protocol resubmission, it adds
    regressions.

 3) Endless loops can be created in bridge port lists, fix from Nikolay
    Aleksandrov.

 4) Don't WARN_ON() if sk->sk_forward_alloc is non-zero in
    sk_clear_memalloc, it is a legal situation during swap deactivation.
    Fix from Mel Gorman.

 5) Fix order of disabling interrupts and unlocking NAPI in enic driver
    to avoid a race.  From Govindarajulu Varadarajan.

 6) High and low register writes are swapped when programming the start
    of periodic output in igb driver.  From Richard Cochran.

 7) Fix device rename handling in mpls stack, from Robert Shearman.

 8) Do not trigger compaction synchronously when optimistically trying
    to allocate an order 3 page in alloc_skb_with_frags() and
    skb_page_frag_refill().  From Shaohua Li.

 9) Authentication with COOKIE_ECHO is not handled properly in SCTP, fix
    from Marcelo Ricardo Leitner.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net:
  Doc: networking: Fix URL for wiki.wireshark.org in udplite.txt
  sctp: allow authenticating DATA chunks that are bundled with COOKIE_ECHO
  net: don't wait for order-3 page allocation
  mpls: handle device renames for per-device sysctls
  net: igb: fix the start time for periodic output signals
  enic: fix memory leak in rq_clean
  enic: check return value for stat dump
  enic: unlock napi busy poll before unmasking intr
  net, swap: Remove a warning and clarify why sk_mem_reclaim is required when deactivating swap
  bridge: fix multicast router rlist endless loop
  tipc: disconnect socket directly after probe failure
  Revert "ipv6: Fix protocol resubmission"
  cfg80211: wext: clear sinfo struct before calling driver
      c8d17b45
  9. 12 Jun, 2015 13 commits
    • Masanari Iida's avatar
      Doc: networking: Fix URL for wiki.wireshark.org in udplite.txt · b07d4961
      Masanari Iida authored 
      This patch fix URL (http to https) for wiki.wireshark.org.
Signed-off-by: default avatarMasanari Iida <standby24x7@gmail.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      b07d4961
    • Marcelo Ricardo Leitner's avatar
      sctp: allow authenticating DATA chunks that are bundled with COOKIE_ECHO · ae36806a
      Marcelo Ricardo Leitner authored 
      Currently, we can ask to authenticate DATA chunks and we can send DATA
chunks on the same packet as COOKIE_ECHO, but if you try to combine
both, the DATA chunk will be sent unauthenticated and peer won't accept
it, leading to a communication failure.

This happens because even though the data was queued after it was
requested to authenticate DATA chunks, it was also queued before we
could know that remote peer can handle authenticating, so
sctp_auth_send_cid() returns false.

The fix is whenever we set up an active key, re-check send queue for
chunks that now should be authenticated. As a result, such packet will
now contain COOKIE_ECHO + AUTH + DATA chunks, in that order.
Reported-by: default avatarLiu Wei <weliu@redhat.com>
Signed-off-by: default avatarMarcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Acked-by: default avatarNeil Horman <nhorman@tuxdriver.com>
Acked-by: default avatarVlad Yasevich <vyasevich@gmail.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      ae36806a
    • Linus Torvalds's avatar
      Merge branch 'for-linus' of git://git.kernel.dk/linux-block · b85dfd30
      Linus Torvalds authored 
      Pull block layer fixes from Jens Axboe:
 "Remember about a week ago when I sent the last pull request for 4.1?
  Well, I lied.  Now, I don't want to shift the blame, but Dan, Ming,
  and Richard made a liar out of me.

  Here are three small patches that should go into 4.1.  More
  specifically, this pull request contains:

   - A Kconfig dependency for the pmem block driver, so it can't be
     selected if HAS_IOMEM isn't availble.  From Richard Weinberger.

   - A fix for genhd, making the ext_devt_lock softirq safe.  This makes
     lockdep happier, since we also end up grabbing this lock on release
     off the softirq path.  From Dan Williams.

   - A blk-mq software queue release fix from Ming Lei.

  Last two are headed to stable, first fixes an issue introduced in this
  cycle"

* 'for-linus' of git://git.kernel.dk/linux-block:
  block: pmem: Add dependency on HAS_IOMEM
  block: fix ext_dev_lock lockdep report
  blk-mq: free hctx->ctxs in queue's release handler
      b85dfd30
    • Linus Torvalds's avatar
      Merge tag 'md/4.1-rc7-fixes' of git://neil.brown.name/md · 7b565d9d
      Linus Torvalds authored 
      Pull three more md fixes from Neil Brown:
 "Hasn't been a good cycle for md has it :-(

  The main issue fixed here is a rare race which can result in two
  reshape threads running at once, which doesn't end well.

  Also a minor issue with a write to a sysfs file returning the wrong
  value.  Backports to 4.0-stable are indicated"

* tag 'md/4.1-rc7-fixes' of git://neil.brown.name/md:
  md: make sure MD_RECOVERY_DONE is clear before starting recovery/resync
  md: Close race when setting 'action' to 'idle'.
  md: don't return 0 from array_state_store
      7b565d9d
    • Linus Torvalds's avatar
      Merge git://git.infradead.org/intel-iommu · c39f3bc6
      Linus Torvalds authored 
      Pull VT-d hardware workarounds from David Woodhouse:
 "This contains a workaround for hardware issues which I *thought* were
  never going to be seen on production hardware.  I'm glad I checked
  that before the 4.1 release...

  Firstly, PASID support is so broken on existing chips that we're just
  going to declare the old capability bit 28 as 'reserved' and change
  the VT-d spec to move PASID support to another bit.  So any existing
  hardware doesn't support SVM; it only sets that (now) meaningless bit
  28.

  That patch *wasn't* imperative for 4.1 because we don't have PASID
  support yet.  But *even* the extended context tables are broken — if
  you just enable the wider tables and use none of the new bits in them,
  which is precisely what 4.1 does, you find that translations don't
  work.  It's this problem which I thought was caught in time to be
  fixed before production, but wasn't.

  To avoid triggering this issue, we now *only* enable the extended
  context tables on hardware which also advertises "we have PASID
  support and we actually tested it this time" with the new PASID
  feature bit.

  In addition, I've added an 'intel_iommu=ecs_off' command line
  parameter to allow us to disable it manually if we need to"

* git://git.infradead.org/intel-iommu:
  iommu/vt-d: Only enable extended context tables if PASID is supported
  iommu/vt-d: Change PASID support to bit 40 of Extended Capability Register
      c39f3bc6
    • David Woodhouse's avatar
      iommu/vt-d: Only enable extended context tables if PASID is supported · c83b2f20
      David Woodhouse authored 
      Although the extended tables are theoretically a completely orthogonal
feature to PASID and anything else that *uses* the newly-available bits,
some of the early hardware has problems even when all we do is enable
them and use only the same bits that were in the old context tables.

For now, there's no motivation to support extended tables unless we're
going to use PASID support to do SVM. So just don't use them unless
PASID support is advertised too. Also add a command-line bailout just in
case later chips also have issues.

The equivalent problem for PASID support has already been fixed with the
upcoming VT-d spec update and commit bd00c606 ("iommu/vt-d: Change
PASID support to bit 40 of Extended Capability Register"), because the
problematic platforms use the old definition of the PASID-capable bit,
which is now marked as reserved and meaningless.

So with this change, we'll magically start using ECS again only when we
see the new hardware advertising "hey, we have PASID support and we
actually tested it this time" on bit 40.

The VT-d hardware architect has promised that we are not going to have
any reason to support ECS *without* PASID any time soon, and he'll make
sure he checks with us before changing that.

In the future, if hypothetical new features also use new bits in the
context tables and can be seen on implementations *without* PASID support,
we might need to add their feature bits to the ecs_enabled() macro.
Signed-off-by: default avatarDavid Woodhouse <David.Woodhouse@intel.com>
      c83b2f20
    • NeilBrown's avatar
      md: make sure MD_RECOVERY_DONE is clear before starting recovery/resync · ea358cd0
      NeilBrown authored 
      MD_RECOVERY_DONE is normally cleared by md_check_recovery after a
resync etc finished.  However it is possible for raid5_start_reshape
to race and start a reshape before MD_RECOVERY_DONE is cleared.  This
can lean to multiple reshapes running at the same time, which isn't
good.

To make sure it is cleared before starting a reshape, and also clear
it when reaping a thread, just to be safe.
Signed-off-by: default avatarNeilBrown  <neilb@suse.de>
      ea358cd0
    • NeilBrown's avatar
      md: Close race when setting 'action' to 'idle'. · 8e8e2518
      NeilBrown authored 
      Checking ->sync_thread without holding the mddev_lock()
isn't really safe, even after flushing the workqueue which
ensures md_start_sync() has been run.

While this code is waiting for the lock, md_check_recovery could reap
the thread itself, and then start another thread (e.g. recovery might
finish, then reshape starts).  When this thread gets the lock
md_start_sync() hasn't run so it doesn't get reaped, but
MD_RECOVERY_RUNNING gets cleared.  This allows two threads to start
which leads to confusion.

So don't both if MD_RECOVERY_RUNNING isn't set, but if it is do
the flush and the test and the reap all under the mddev_lock to
avoid any race with md_check_recovery.
Signed-off-by: default avatarNeilBrown <neilb@suse.de>
Fixes: 6791875e ("md: make reconfig_mutex optional for writes to md sysfs files.")
Cc: stable@vger.kernel.org (v4.0+)
      8e8e2518
    • NeilBrown's avatar
      md: don't return 0 from array_state_store · c008f1d3
      NeilBrown authored 
      Returning zero from a 'store' function is bad.
The return value should be either len length of the string
or an error.

So use 'len' if 'err' is zero.

Fixes: 6791875e ("md: make reconfig_mutex optional for writes to md sysfs files.")
Signed-off-by: default avatarNeilBrown <neilb@suse.de>
Cc: stable@vger.kernel (v4.0+)
      c008f1d3
    • Krzysztof Kozlowski's avatar
      dmaengine: Fix choppy sound because of unimplemented resume · 88d04643
      Krzysztof Kozlowski authored 
      Some drivers implement only pause operation (no resuming). Example is
pl330 where pause is needed for getting residuum. pl330 does not support
resume operation, transfer must be stopped after pause.

However for slaves this is exposed always as "pause and resume" which
introduces subtle errors on Odroid U3 board (Exynos4412 with pl330).
After adding pause function to pl330 driver the audio playback
(utilizing DMA) gets choppy after some time (approximately 24 hours).

Fix this by exposing "cmd_pause" if and only if pause and resume are
implemented.
Signed-off-by: default avatarKrzysztof Kozlowski <k.kozlowski@samsung.com>
Reported-by: gabriel@unseen.is
Reported-by: default avatarMarek Szyprowski <m.szyprowski@samsung.com>
Cc: <stable@vger.kernel.org>
Fixes: 88987d2c ("dmaengine: pl330: add DMA_PAUSE feature")
Acked-by: default avatarMaxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: default avatarVinod Koul <vinod.koul@intel.com>
      88d04643
    • Takashi Iwai's avatar
      ALSA: hda - Abort the probe without i915 binding for HSW/BDW · 535115b5
      Takashi Iwai authored 
      The previous patch tried to continue the probe if i915 binding fails.
For for simplicity reason, we haven't implemented abort even for
controller chips that are dedicated for HDMI/DP on HSW and BDW.
However, Mengdong suggested that this can be dangerous; BIOS may
disable gfx power well although the PCI entry for HD-audio is left,
and this may result in the unexpected behavior, kernel errors, etc.

For avoiding this situation, abort the probe at i915 binding failure
only for HSW/BDW chips selectively.  For other chips, it still
continues.

Fixes: bf06848b ('ALSA: hda - Continue probing even if i915 binding fails')
Reported-by: default avatarMengdong Lin <mengdong.lin@intel.com>
Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
      535115b5
    • Linus Torvalds's avatar
      Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux · df5f4158
      Linus Torvalds authored 
      Pull drm fixes from Dave Airlie:
 "i915 and radeon fixes:

  i915:
      fix for connector oops regression
      DDC probing fix

  radeon:
      two radeon reverts, along with a freeze workaround and a fix"

* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
  drm/radeon: Make sure radeon_vm_bo_set_addr always unreserves the BO
  Revert "drm/radeon: adjust pll when audio is not enabled"
  Revert "drm/radeon: don't share plls if monitors differ in audio support"
  drm/radeon: fix freeze for laptop with Turks/Thames GPU.
  drm/i915: Fix DDC probe for passive adapters
  drm/i915: Properly initialize SDVO analog connectors
      df5f4158
    • Shaohua Li's avatar
      net: don't wait for order-3 page allocation · fb05e7a8
      Shaohua Li authored 
      We saw excessive direct memory compaction triggered by skb_page_frag_refill.
This causes performance issues and add latency. Commit 5640f768
introduces the order-3 allocation. According to the changelog, the order-3
allocation isn't a must-have but to improve performance. But direct memory
compaction has high overhead. The benefit of order-3 allocation can't
compensate the overhead of direct memory compaction.

This patch makes the order-3 page allocation atomic. If there is no memory
pressure and memory isn't fragmented, the alloction will still success, so we
don't sacrifice the order-3 benefit here. If the atomic allocation fails,
direct memory compaction will not be triggered, skb_page_frag_refill will
fallback to order-0 immediately, hence the direct memory compaction overhead is
avoided. In the allocation failure case, kswapd is waken up and doing
compaction, so chances are allocation could success next time.

alloc_skb_with_frags is the same.

The mellanox driver does similar thing, if this is accepted, we must fix
the driver too.

V3: fix the same issue in alloc_skb_with_frags as pointed out by Eric
V2: make the changelog clearer

Cc: Eric Dumazet <edumazet@google.com>
Cc: Chris Mason <clm@fb.com>
Cc: Debabrata Banerjee <dbavatar@gmail.com>
Signed-off-by: default avatarShaohua Li <shli@fb.com>
Acked-by: default avatarEric Dumazet <edumazet@google.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      fb05e7a8
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