Commit Graph

647913 Commits

Author SHA1 Message Date
Kailang Yang
9eb5d0e635 ALSA: hda/realtek - Add support headphone Mic for ALC221 of HP platform
ALC221 HP platform need to support Headphone Mic.
This patch will turn on headphone Mic supported.

Signed-off-by: Kailang Yang <kailang@realtek.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-01-18 11:05:22 +01:00
Arnd Bergmann
8b169cb27c ALSA: mips: avoid potential uninitialized variable use
MIPS allmodconfig results in this warning:

sound/mips/hal2.c: In function 'hal2_gain_get':
sound/mips/hal2.c:224:35: error: 'r' may be used uninitialized in this function [-Werror=maybe-uninitialized]
sound/mips/hal2.c:223:35: error: 'l' may be used uninitialized in this function [-Werror=maybe-uninitialized]
sound/mips/hal2.c: In function 'hal2_gain_put':
sound/mips/hal2.c:260:13: error: 'new' may be used uninitialized in this function [-Werror=maybe-uninitialized]
sound/mips/hal2.c:260:13: error: 'old' may be used uninitialized in this function [-Werror=maybe-uninitialized]

Returning an error for all unexpected cases shuts up the warning

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-01-16 14:33:42 +01:00
Kailang Yang
a535ad57d0 ALSA: hda/realtek - New codec support of ALC1220
Add support for new codec of ALC1220.
It's compatible with ALC882 & co.

Signed-off-by: Kailang Yang <kailang@realtek.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-01-16 10:18:38 +01:00
Takashi Iwai
41438f1314 ALSA: hda - Make single_cmd option to stop the fallback mechanism
HD-audio driver has a mechanism to fall back to the single cmd mode as
a last resort if the CORB/RIRB communication goes wrong even after
switching to the polling mode.  The switching has worked in the past
well, but Enrico Mioso reported that his system crashes when this
happens.

Although the actual cause of the crash isn't still fully analyzed yet,
it'd be in anyway good to provide an option to turn off the fallback
mode.  Now this patch extends the behavior of the existing single_cmd
option for that.  Namely,

- The option is changed from bool to bint.
- As default, it is the mode allowing the fallback to single cmd.
- Once when either true/false value is given to the option, the driver
  explicitly turns on/off the single cmd mode, but without the
  fallback.

That is, if you want to disable the fallback, just pass single_cmd=0
option.  Passing single_cmd=1 will keep working like before.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-01-15 09:09:04 +01:00
Takashi Sakamoto
1753187e28 ALSA: oxfw: enclose identifiers referred by single function for scs1x feature
Some identifiers are referred just by one functions. In this case, they
can be put into the function definition. This brings two merits; readers
can easily follow codes related to the identifiers, developers are free
from name conflict.

This commit moves such identifiers to each function definition.

Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-01-14 09:31:57 +01:00
Takashi Iwai
f43e5407e4 ALSA: usb: Constify snd_rawmidi_ops
Now snd_rawmidi_ops is maintained as a const pointer in snd_rawmidi,
we can constify the definitions.

Reviewed-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-01-12 12:50:48 +01:00
Takashi Iwai
57eb67994a ALSA: firewire: Constify snd_rawmidi_ops
Now snd_rawmidi_ops is maintained as a const pointer in snd_rawmidi,
we can constify the definitions.

Reviewed-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-01-12 12:50:38 +01:00
Takashi Iwai
485885b9d0 ALSA: pci: Constify snd_rawmidi_ops
Now snd_rawmidi_ops is maintained as a const pointer in snd_rawmidi,
we can constify the definitions.

Reviewed-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-01-12 12:50:26 +01:00
Takashi Iwai
9021b2b8fd ALSA: isa: Constify snd_rawmidi_ops
Now snd_rawmidi_ops is maintained as a const pointer in snd_rawmidi,
we can constify the definitions.

Reviewed-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-01-12 12:50:16 +01:00
Takashi Iwai
c36f486d7b ALSA: drivers: Constify snd_rawmidi_ops
Now snd_rawmidi_ops is maintained as a const pointer in snd_rawmidi,
we can constify the definitions.

Reviewed-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-01-12 12:50:06 +01:00
Takashi Iwai
c62a57004a ALSA: seq: Constify snd_rawmidi_ops
Now snd_rawmidi_ops is maintained as a const pointer in snd_rawmidi,
we can constify the definitions.

Reviewed-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-01-12 12:49:55 +01:00
Takashi Iwai
6ba79b8532 ALSA: rawmidi: Add const to snd_rawmidi_ops
Make snd_rawmidi_substream.ops to be a const pointer to be safer and
allow more optimization.  The patches to constify each rawmidi ops
will follow.

Reviewed-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-01-12 12:49:36 +01:00
Arnd Bergmann
46a049dae7 ALSA: hda/ca0132 - fix possible NULL pointer use
gcc-7 caught what it considers a NULL pointer dereference:

sound/pci/hda/patch_ca0132.c: In function 'dspio_scp.constprop':
sound/pci/hda/patch_ca0132.c:1487:4: error: argument 1 null where non-null expected [-Werror=nonnull]

This is plausible from looking at the function, as we compare 'reply'
to NULL earlier in it. I have not tried to analyze if there are constraints
that make it impossible to hit the bug, but adding another NULL check in
the end kills the warning and makes the function more robust.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-01-11 17:19:23 +01:00
Takashi Sakamoto
921282360b ALSA: firewire-tascam: enclose identifiers referred by single function
Some identifiers are referred just by one functions. In this case, they
can be put into the function definition. This brings two merits; readers
can easily follow codes related to the identifiers, developers are free
from name conflict.

This commit moves such identifiers to each function definition.

Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-01-05 16:58:10 +01:00
Takashi Sakamoto
a4e86cba09 ALSA: firewire-digi00x: enclose identifiers referred by single function
Some identifiers are referred just by one functions. In this case, they
can be put into the function definition. This brings two merits; readers
can easily follow codes related to the identifiers, developers are free
from name conflict.

This commit moves such identifiers to each function definition.

Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-01-05 16:58:07 +01:00
Takashi Sakamoto
fcbe08d469 ALSA: dice: enclose identifiers referred by single function
Some identifiers are referred just by one functions. In this case, they
can be put into the function definition. This brings two merits; readers
can easily follow codes related to the identifiers, developers are free
from name conflict.

This commit moves such identifiers to each function definition.

Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-01-05 16:58:06 +01:00
Takashi Sakamoto
39feaf2d0a ALSA: oxfw: enclose identifiers referred by single function
Some identifiers are referred just by one functions. In this case, they
can be put into the function definition. This brings two merits; readers
can easily follow codes related to the identifiers, developers are free
from name conflict.

This commit moves such identifiers to each function definition.

Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-01-05 16:58:05 +01:00
Takashi Sakamoto
7cdc887a00 ALSA: fireworks: enclose identifiers referred by single function
Some identifiers are referred just by one functions. In this case, they
can be put into the function definition. This brings two merits; readers
can easily follow codes related to the identifiers, developers are free
from name conflict.

This commit moves such identifiers to each function definition.

Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-01-05 16:58:03 +01:00
Takashi Sakamoto
4780f774f9 ALSA: bebob: enclose identifiers referred by single function
Some identifiers are referred just by one functions. In this case, they
can be put into the function definition. This brings two merits; readers
can easily follow codes related to the identifiers, developers are free
from name conflict.

This commit moves such identifiers to each function definition.

Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-01-05 16:58:01 +01:00
Takashi Iwai
ed3c177d96 ALSA: vx: Don't try to update capture stream before running
The update of stream costs significantly, and we should avoid it
unless the stream really has started.  Check pipe->running flag
instead of pipe->prepared.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-01-04 18:01:35 +01:00
Takashi Iwai
874e1f6fad ALSA: vx: Fix possible transfer overflow
The pseudo DMA transfer codes in VX222 and VX-pocket driver have a
slight bug where they check the buffer boundary wrongly, and may
overflow.  Also, the zero sample count might be handled badly for the
playback (although it shouldn't happen in theory).  This patch
addresses these issues.

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=141541
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-01-04 18:01:35 +01:00
Takashi Iwai
ab949d5196 ALSA: hda - Fix deadlock of controller device lock at unbinding
Imre Deak reported a deadlock of HD-audio driver at unbinding while
it's still in probing.  Since we probe the codecs asynchronously in a
work, the codec driver probe may still be kicked off while the
controller itself is being unbound.  And, azx_remove() tries to
process all pending tasks via cancel_work_sync() for fixing the other
races (see commit [0b8c82190c: ALSA: hda - Cancel probe work instead
of flush at remove]), now we may meet a bizarre deadlock:

Unbind snd_hda_intel via sysfs:
  device_release_driver() ->
    device_lock(snd_hda_intel) ->
      azx_remove() ->
        cancel_work_sync(azx_probe_work)

azx_probe_work():
  codec driver probe() ->
     __driver_attach() ->
       device_lock(snd_hda_intel)

This deadlock is caused by the fact that both device_release_driver()
and driver_probe_device() take both the device and its parent locks at
the same time.  The codec device sets the controller device as its
parent, and this lock is taken before the probe() callback is called,
while the controller remove() callback gets called also with the same
lock.

In this patch, as an ugly workaround, we unlock the controller device
temporarily during cancel_work_sync() call.  The race against another
bind call should be still suppressed by the parent's device lock.

Reported-by: Imre Deak <imre.deak@intel.com>
Fixes: 0b8c82190c ("ALSA: hda - Cancel probe work instead of flush at remove")
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-01-04 11:22:55 +01:00
Kailang Yang
28f1f9b26c ALSA: hda/realtek - Add new codec ID ALC299
ALC299 was similar as ALC225.
Add headset support for ALC299.
ALC3271 was for Dell rename.

Signed-off-by: Kailang Yang <kailang@realtek.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-01-04 08:33:26 +01:00
Takashi Iwai
337ccfce23 Merge branch 'for-linus' into for-next 2017-01-03 11:39:30 +01:00
Takashi Sakamoto
b0e159fe34 ALSA: dice: ensure transmission speed for transmitted packets
As of kernel 4.10, ALSA dice driver is expected to be used in default
speed. In most cases, it's S400. While, IEEE 1394 specification describes
the other speed such as S800.

According to 'TCD30XX User Guide', its link layer controller supports
several transmission speed up to S800[0]. In Dice software interface,
transmission speed in output direction can be configured by asynchronous
transaction to 'TX_SPEED' offset in its address space. S800 may be
available.

This commit improves configuration of transmission unit before starting
packet streaming for this purpose. The value of 'max_speed' in 'fw_device'
data structure has available maximum speed decided in bus arbitration,
thus it's within capacity of the unit.

[0] TCD3xx User Guide - TCAT 1394 LLC, Revision 0.9.0-41360 (TC Applied Technologies, May 6 2015)
http://www.tctechnologies.tc/index.php/support/support-hardware/dice-iii-detailed-documentation

Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-01-03 11:38:39 +01:00
Takashi Sakamoto
6b7e95d133 ALSA: firewire-lib: change structure member with proper type
The 'amdtp_stream' structure is initialized by a call of
'amdtp_stream_init()'. Although a parameter of this function is for bit
flags of packet attributes, its type is enumerator.

This commit changes the type so that it's proper for a bit flags.

Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-01-03 11:37:10 +01:00
Takashi Sakamoto
6a2a2f4556 ALSA: firewire-tascam: Fix to handle error from initialization of stream data
This module has a bug not to return error code in a case that data
structure for transmitted packets fails to be initialized.

This commit fixes the bug.

Fixes: 35efa5c489 ("ALSA: firewire-tascam: add streaming functionality")
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-01-03 11:36:34 +01:00
Takashi Sakamoto
e2eb31d721 ALSA: fireworks: fix asymmetric API call at unit removal
ALSA fireworks driver has a bug not to call an API to destroy
'cmp_connection' structure for input direction. Currently this causes no
issues because it just destroys 'mutex' structure, while it's better to
fix it for future work.

Fix: d23c2cc448 ("ALSA: fireworks/bebob/dice/oxfw: allow stream destructor after releasing runtime")
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-01-03 11:36:13 +01:00
Takashi Sakamoto
03abd33a11 ALSA: oxfw: add support for Mackie Onyx 1640i
As of kernel 4.10,  ALSA OXFW driver has no entry for Onyx 1640i produced
by Mackie (Loud Technologies). This commit supplement it.

I note that there're two models produced by Mackie (Loud Technologies),
which have the same name 'Onyx 1640i'. The former model based on OXFW970,
the latter model based on Dice. This is probably due to low quality of
communication of OXFW series.

Additionally, the tester reports his or her experiences to get unexpected
result at higher sampling transmission frequency as 88.2/96.0 kHz. We
didn't have further investigation yet[0].

$ ./linux-firewire-utils/src/crpp < config_rom
               ROM header and bus information block
               -----------------------------------------------------------------
400  042525ce  bus_info_length 4, crc_length 37, crc 9678
404  31333934  bus_name "1394"
408  20ff5003  irmc 0, cmc 0, isc 1, bmc 0, cyc_clk_acc 255, max_rec 5 (64)
40c  000ff205  company_id 000ff2     |
410  00000fcf  device_id 0500000fcf  | EUI-64 000ff20500000fcf

               root directory
               -----------------------------------------------------------------
414  0006c1b7  directory_length 6, crc 49591
418  03000ff2  vendor
41c  8100000a  --> descriptor leaf at 444
420  17001640  model
424  81000011  --> descriptor leaf at 468
428  0c0083c0  node capabilities per IEEE 1394
42c  d1000001  --> unit directory at 430

               unit directory at 430
               -----------------------------------------------------------------
430  00040b97  directory_length 4, crc 2967
434  1200a02d  specifier id: 1394 TA
438  13010001  version: AV/C
43c  17001640  model
440  81000010  --> descriptor leaf at 480

               descriptor leaf at 444
               -----------------------------------------------------------------
444  0008a886  leaf_length 8, crc 43142
448  00000000  textual descriptor
44c  00000000  minimal ASCII
450  4c6f7564  "Loud"
454  20546563  " Tec"
458  686e6f6c  "hnol"
45c  6f676965  "ogie"
460  7320496e  "s In"
464  632e0000  "c."

               descriptor leaf at 468
               -----------------------------------------------------------------
468  00059fcf  leaf_length 5, crc 40911
46c  00000000  textual descriptor
470  00000000  minimal ASCII
474  4f6e7978  "Onyx"
478  20313634  " 164"
47c  30690000  "0i"

               descriptor leaf at 480
               -----------------------------------------------------------------
480  00059fcf  leaf_length 5, crc 40911
484  00000000  textual descriptor
488  00000000  minimal ASCII
48c  4f6e7978  "Onyx"
490  20313634  " 164"
494  30690000  "0i"

[0]: [FFADO-user] Mackie 1640i issues (finer details)
https://sourceforge.net/p/ffado/mailman/message/35229260/

Tested-by: Seth O'Bannion <saobannion@gmail.com>
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-01-03 11:34:38 +01:00
Linus Torvalds
0c744ea4f7 Linux 4.10-rc2 2017-01-01 14:31:53 -08:00
Linus Torvalds
4759d386d5 Merge branch 'libnvdimm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm
Pull DAX updates from Dan Williams:
 "The completion of Jan's DAX work for 4.10.

  As I mentioned in the libnvdimm-for-4.10 pull request, these are some
  final fixes for the DAX dirty-cacheline-tracking invalidation work
  that was merged through the -mm, ext4, and xfs trees in -rc1. These
  patches were prepared prior to the merge window, but we waited for
  4.10-rc1 to have a stable merge base after all the prerequisites were
  merged.

  Quoting Jan on the overall changes in these patches:

     "So I'd like all these 6 patches to go for rc2. The first three
      patches fix invalidation of exceptional DAX entries (a bug which
      is there for a long time) - without these patches data loss can
      occur on power failure even though user called fsync(2). The other
      three patches change locking of DAX faults so that ->iomap_begin()
      is called in a more relaxed locking context and we are safe to
      start a transaction there for ext4"

  These have received a build success notification from the kbuild
  robot, and pass the latest libnvdimm unit tests. There have not been
  any -next releases since -rc1, so they have not appeared there"

* 'libnvdimm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
  ext4: Simplify DAX fault path
  dax: Call ->iomap_begin without entry lock during dax fault
  dax: Finish fault completely when loading holes
  dax: Avoid page invalidation races and unnecessary radix tree traversals
  mm: Invalidate DAX radix tree entries only if appropriate
  ext2: Return BH_New buffers for zeroed blocks
2017-01-01 12:27:05 -08:00
Linus Torvalds
238d1d0f79 Two small fixes:
- A merge error on my part broke the DocBook build.  I've requisitioned
    one of tglx's frozen sharks for appropriate disciplinary action and
    resolved to be more careful about testing the DocBook stuff as long as
    it's still around.
 
  - Fix an error in unaligned-memory-access.txt
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Merge tag 'docs-4.10-rc1-fix' of git://git.lwn.net/linux

Pull documentation fixes from Jonathan Corbet:
 "Two small fixes:

   - A merge error on my part broke the DocBook build. I've
     requisitioned one of tglx's frozen sharks for appropriate
     disciplinary action and resolved to be more careful about testing
     the DocBook stuff as long as it's still around.

   - Fix an error in unaligned-memory-access.txt"

* tag 'docs-4.10-rc1-fix' of git://git.lwn.net/linux:
  Documentation/unaligned-memory-access.txt: fix incorrect comparison operator
  docs: Fix build failure
2016-12-30 09:32:26 -08:00
Linus Torvalds
f3de082c12 Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto fix from Herbert Xu:
 "This fixes a boot failure on some platforms when crypto self test is
  enabled along with the new acomp interface"

* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
  crypto: testmgr - Use heap buffer for acomp test input
2016-12-30 09:29:50 -08:00
Olof Johansson
98473f9f3f mm/filemap: fix parameters to test_bit()
mm/filemap.c: In function 'clear_bit_unlock_is_negative_byte':
  mm/filemap.c:933:9: error: too few arguments to function 'test_bit'
    return test_bit(PG_waiters);
         ^~~~~~~~

Fixes: b91e1302ad ('mm: optimize PageWaiters bit use for unlock_page()')
Signed-off-by: Olof Johansson <olof@lixom.net>
Brown-paper-bag-by: Linus Torvalds <dummy@duh.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-12-29 14:46:39 -08:00
Linus Torvalds
b91e1302ad mm: optimize PageWaiters bit use for unlock_page()
In commit 6290602709 ("mm: add PageWaiters indicating tasks are
waiting for a page bit") Nick Piggin made our page locking no longer
unconditionally touch the hashed page waitqueue, which not only helps
performance in general, but is particularly helpful on NUMA machines
where the hashed wait queues can bounce around a lot.

However, the "clear lock bit atomically and then test the waiters bit"
sequence turns out to be much more expensive than it needs to be,
because you get a nasty stall when trying to access the same word that
just got updated atomically.

On architectures where locking is done with LL/SC, this would be trivial
to fix with a new primitive that clears one bit and tests another
atomically, but that ends up not working on x86, where the only atomic
operations that return the result end up being cmpxchg and xadd.  The
atomic bit operations return the old value of the same bit we changed,
not the value of an unrelated bit.

On x86, we could put the lock bit in the high bit of the byte, and use
"xadd" with that bit (where the overflow ends up not touching other
bits), and look at the other bits of the result.  However, an even
simpler model is to just use a regular atomic "and" to clear the lock
bit, and then the sign bit in eflags will indicate the resulting state
of the unrelated bit #7.

So by moving the PageWaiters bit up to bit #7, we can atomically clear
the lock bit and test the waiters bit on x86 too.  And architectures
with LL/SC (which is all the usual RISC suspects), the particular bit
doesn't matter, so they are fine with this approach too.

This avoids the extra access to the same atomic word, and thus avoids
the costly stall at page unlock time.

The only downside is that the interface ends up being a bit odd and
specialized: clear a bit in a byte, and test the sign bit.  Nick doesn't
love the resulting name of the new primitive, but I'd rather make the
name be descriptive and very clear about the limitation imposed by
trying to work across all relevant architectures than make it be some
generic thing that doesn't make the odd semantics explicit.

So this introduces the new architecture primitive

    clear_bit_unlock_is_negative_byte();

and adds the trivial implementation for x86.  We have a generic
non-optimized fallback (that just does a "clear_bit()"+"test_bit(7)"
combination) which can be overridden by any architecture that can do
better.  According to Nick, Power has the same hickup x86 has, for
example, but some other architectures may not even care.

All these optimizations mean that my page locking stress-test (which is
just executing a lot of small short-lived shell scripts: "make test" in
the git source tree) no longer makes our page locking look horribly bad.
Before all these optimizations, just the unlock_page() costs were just
over 3% of all CPU overhead on "make test".  After this, it's down to
0.66%, so just a quarter of the cost it used to be.

(The difference on NUMA is bigger, but there this micro-optimization is
likely less noticeable, since the big issue on NUMA was not the accesses
to 'struct page', but the waitqueue accesses that were already removed
by Nick's earlier commit).

Acked-by: Nick Piggin <npiggin@gmail.com>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Bob Peterson <rpeterso@redhat.com>
Cc: Steven Whitehouse <swhiteho@redhat.com>
Cc: Andrew Lutomirski <luto@kernel.org>
Cc: Andreas Gruenbacher <agruenba@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mel Gorman <mgorman@techsingularity.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-12-29 11:03:15 -08:00
Gabriele Mazzotta
823ff161fe ALSA: hda - Fix click noises on Samsung Ativ Book 8
The Samsung Ativ Book 8 makes a loud click noise on boot, shutdown
and when the audio card enters or exits power saving states. All
these noises disappear applying ALC269_FIXUP_NO_SHUTUP.

In addition to that, fix the loud click noise that the laptop
makes when inserting or removing the headphone jack by automuting
via amp instead of pinctl.

Signed-off-by: Gabriele Mazzotta <gabriele.mzt@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2016-12-28 16:14:04 +01:00
Gabriele Mazzotta
972aa2c708 ALSA: hda - Apply ALC269_FIXUP_NO_SHUTUP on HDA_FIXUP_ACT_PROBE
Setting shutup when the action is HDA_FIXUP_ACT_PRE_PROBE might
not have the desired effect since it could be overridden by
another more generic shutup function. Prevent this by setting
the more specific shutup function on HDA_FIXUP_ACT_PROBE.

Signed-off-by: Gabriele Mazzotta <gabriele.mzt@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2016-12-28 16:13:56 +01:00
Geliang Tang
1c623c2409 ALSA: mixart: fix a comment typo
Fix a comment typo in mixart.h.

Signed-off-by: Geliang Tang <geliangtang@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2016-12-28 16:11:34 +01:00
Jussi Laako
3eff682d76 ALSA: usb-audio: Support both DSD LE/BE Amanero firmware versions
Add DSD support for both little endian (DSD_U32_LE) and big endian
(DSD_U32_BE) version of the Amanero firmware.

Signed-off-by: Jussi Laako <jussi@sonarnerd.net>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2016-12-28 16:07:11 +01:00
Kees Cook
f93a1c9e5e ALSA: synth: use designated initializers
Prepare to mark sensitive kernel structures for randomization by making
sure they're using designated initializers. These were identified during
allyesconfig builds of x86, arm, and arm64, with most initializer fixes
extracted from grsecurity.

Signed-off-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2016-12-28 16:06:16 +01:00
Jérémy Lefaure
fe4cb86cde ALSA: cs5535audio: fix unused warnings on resume/suspend
When CONFIG_PM_SLEEP is disabled, SIMPLE_DEV_PM_OPS does not use
snd_cs5535audio_resume and snd_cs5535audio_suspend functions:

sound/pci/cs5535audio/cs5535audio_pm.c:77:12: warning: ‘snd_cs5535audio_resume’ defined but not used [-Wunused-function]
 static int snd_cs5535audio_resume(struct device *dev)
            ^~~~~~~~~~~~~~~~~~~~~~
sound/pci/cs5535audio/cs5535audio_pm.c:58:12: warning: ‘snd_cs5535audio_suspend’ defined but not used [-Wunused-function]
 static int snd_cs5535audio_suspend(struct device *dev)
            ^~~~~~~~~~~~~~~~~~~~~~~

Adding __maybe_unused to the declaration of these functions removes the
warnings.

Signed-off-by: Jérémy Lefaure <jeremy.lefaure@lse.epita.fr>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2016-12-28 16:05:12 +01:00
Linus Torvalds
2d706e790f Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto fix from Herbert Xu:
 "This fixes a hash corruption bug in the marvell driver"

* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
  crypto: marvell - Copy IVDIG before launching partial DMA ahash requests
2016-12-27 17:51:36 -08:00
Linus Torvalds
8f18e4d03e Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull networking fixes from David Miller:

 1) Various ipvlan fixes from Eric Dumazet and Mahesh Bandewar.

    The most important is to not assume the packet is RX just because
    the destination address matches that of the device. Such an
    assumption causes problems when an interface is put into loopback
    mode.

 2) If we retry when creating a new tc entry (because we dropped the
    RTNL mutex in order to load a module, for example) we end up with
    -EAGAIN and then loop trying to replay the request. But we didn't
    reset some state when looping back to the top like this, and if
    another thread meanwhile inserted the same tc entry we were trying
    to, we re-link it creating an enless loop in the tc chain. Fix from
    Daniel Borkmann.

 3) There are two different WRITE bits in the MDIO address register for
    the stmmac chip, depending upon the chip variant. Due to a bug we
    could set them both, fix from Hock Leong Kweh.

 4) Fix mlx4 bug in XDP_TX handling, from Tariq Toukan.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net:
  net: stmmac: fix incorrect bit set in gmac4 mdio addr register
  r8169: add support for RTL8168 series add-on card.
  net: xdp: remove unused bfp_warn_invalid_xdp_buffer()
  openvswitch: upcall: Fix vlan handling.
  ipv4: Namespaceify tcp_tw_reuse knob
  net: korina: Fix NAPI versus resources freeing
  net, sched: fix soft lockup in tc_classify
  net/mlx4_en: Fix user prio field in XDP forward
  tipc: don't send FIN message from connectionless socket
  ipvlan: fix multicast processing
  ipvlan: fix various issues in ipvlan_process_multicast()
2016-12-27 16:04:37 -08:00
Cihangir Akturk
36f671be1d Documentation/unaligned-memory-access.txt: fix incorrect comparison operator
In the actual implementation ether_addr_equal function tests for equality to 0
when returning. It seems in commit 0d74c4 it is somehow overlooked to change
this operator to reflect the actual function.

Signed-off-by: Cihangir Akturk <cakturk@gmail.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2016-12-27 13:08:42 -07:00
John Brooks
66115335fb docs: Fix build failure
The 80211.tmpl DocBook file was removed in commit 819bf59376 ("docs-rst:
sphinxify 802.11 documentation"), but the 80211.xml target was re-added to
the Makefile by commit 7ddedebb03 ("ALSA: doc: ReSTize
writing-an-alsa-driver document"), leading to a failure when building the
documentation:

*** No rule to make target 'Documentation/DocBook/80211.xml', needed by
'Documentation/DocBook/80211.aux.xml'.

cc: stable@vger.kernel.org
Signed-off-by: John Brooks <john@fastquake.com>
Mea-culpa-by: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2016-12-27 13:05:36 -07:00
Jonathan Corbet
54ab6db090 Linux 4.10-rc1
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Merge tag 'v4.10-rc1' into docs-next

Linux 4.10-rc1
2016-12-27 12:53:44 -07:00
Kweh, Hock Leong
5799fc9059 net: stmmac: fix incorrect bit set in gmac4 mdio addr register
Fixing the gmac4 mdio write access to use MII_GMAC4_WRITE only instead of
OR together with MII_WRITE.

Signed-off-by: Kweh, Hock Leong <hock.leong.kweh@intel.com>
Acked-By: Joao Pinto <jpinto@synopsys.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-27 12:28:08 -05:00
Chun-Hao Lin
610c908773 r8169: add support for RTL8168 series add-on card.
This chip is the same as RTL8168, but its device id is 0x8161.

Signed-off-by: Chun-Hao Lin <hau@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-27 12:28:07 -05:00
Jason Wang
be26727772 net: xdp: remove unused bfp_warn_invalid_xdp_buffer()
After commit 73b62bd085 ("virtio-net:
remove the warning before XDP linearizing"), there's no users for
bpf_warn_invalid_xdp_buffer(), so remove it. This is a revert for
commit f23bc46c30.

Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: John Fastabend <john.r.fastabend@intel.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-27 12:28:07 -05:00
pravin shelar
df30f7408b openvswitch: upcall: Fix vlan handling.
Networking stack accelerate vlan tag handling by
keeping topmost vlan header in skb. This works as
long as packet remains in OVS datapath. But during
OVS upcall vlan header is pushed on to the packet.
When such packet is sent back to OVS datapath, core
networking stack might not handle it correctly. Following
patch avoids this issue by accelerating the vlan tag
during flow key extract. This simplifies datapath by
bringing uniform packet processing for packets from
all code paths.

Fixes: 5108bbaddc ("openvswitch: add processing of L3 packets").
CC: Jarno Rajahalme <jarno@ovn.org>
CC: Jiri Benc <jbenc@redhat.com>
Signed-off-by: Pravin B Shelar <pshelar@ovn.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-27 12:28:07 -05:00