linux-toradex.git/include/uapi, branch v3.12.22

drm/tegra: Remove gratuitous pad field

2014-06-06T10:38:17+00:00

commit cbfbbabb89b37f6bad05f478d906a385149f288d upstream.

The version of the drm_tegra_submit structure that was merged all the
way back in 3.10 contains a pad field that was originally intended to
properly pad the following __u64 field. Unfortunately it seems like a
different field was dropped during review that caused this padding to
become unnecessary, but the pad field wasn't removed at that time.

One possible side-effect of this is that since the __u64 following the
pad is now no longer properly aligned, the compiler may (or may not)
introduce padding itself, which results in no predictable ABI.

Rectify this by removing the pad field so that all fields are again
naturally aligned. Technically this is breaking existing userspace ABI,
but given that there aren't any (released) userspace drivers that make
use of this yet, the fallout should be minimal.

Fixes: d43f81cbaf43 ("drm/tegra: Add gr2d device")
Signed-off-by: Thierry Reding 
Signed-off-by: Jiri Slaby

xattr: guard against simultaneous glibc header inclusion

2014-05-15T07:55:38+00:00

commit ea1a8217b06b41b31a2b60b0b83f75c77ef9c873 upstream.

If the glibc xattr.h header is included after the uapi header,
compilation fails due to an enum re-using a #define from the uapi
header.

Protect against this by guarding the define and enum inclusions against
each other.

(See https://lists.debian.org/debian-glibc/2014/03/msg00029.html
and https://sourceware.org/glibc/wiki/Synchronizing_Headers
for more information.)

Signed-off-by: Serge Hallyn 
Cc: Andrew Morton 
Cc: Allan McRae 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds 
Signed-off-by: Jiri Slaby

media: videodev2.h: add parenthesis around macro arguments

2014-05-15T07:55:25+00:00

commit aee786acfc0a12bcd37a1c60f3198fb25cf7181a upstream.

bt->width should be (bt)->width, and same for the other fields.

Signed-off-by: Hans Verkuil 
Signed-off-by: Mauro Carvalho Chehab 
Signed-off-by: Jiri Slaby

floppy: bail out in open() if drive is not responding to block0 read

2014-04-18T08:58:54+00:00

commit 7b7b68bba5ef23734c35ffb0d8d82079ed604d33 upstream.

In case reading of block 0 during open() fails, it is not the right thing
to let open() succeed.

Fix this by introducing FD_OPEN_SHOULD_FAIL_BIT flag, and setting it in
case the bio callback encounters an error while trying to read block 0.

As a bonus, this works around certain broken userspace (blkid), which is
not able to properly handle read()s returning IO errors. Hence be nice to
those, and bail out during open() already; if block 0 is not readable,
read()s are not going to provide any meaningful data anyway.

Signed-off-by: Jiri Kosina 
Signed-off-by: Jiri Slaby

drm/radeon: expose render backend mask to the userspace

2014-01-09T20:25:11+00:00

commit 439a1cfffe2c1a06e5a6394ccd5d18a8e89b15d3 upstream.

This will allow userspace to correctly program the PA_SC_RASTER_CONFIG
register, so it can be considered a fix.

Signed-off-by: Marek Olšák 
Signed-off-by: Alex Deucher 
Signed-off-by: Greg Kroah-Hartman

ALSA: compress: Fix 64bit ABI incompatibility

2013-12-20T15:48:49+00:00

commit 6733cf572a9e20db2b7580a5dd39d5782d571eec upstream.

snd_pcm_uframes_t is defined as unsigned long so it would take
different sizes depending on 32 or 64bit architectures.  As we don't
want this ABI incompatibility, and there is no real 64bit user yet,
let's make it the fixed size with __u32.

Also bump the protocol version number to 0.1.2.

Acked-by: Vinod Koul 
Signed-off-by: Takashi Iwai 
Signed-off-by: Greg Kroah-Hartman

pkt_sched: fq: fix pacing for small frames

2013-12-08T15:29:13+00:00

[ Upstream commit f52ed89971adbe79b6438c459814034707b8ab91 ]

For performance reasons, sch_fq tried hard to not setup timers for every
sent packet, using a quantum based heuristic : A delay is setup only if
the flow exhausted its credit.

Problem is that application limited flows can refill their credit
for every queued packet, and they can evade pacing.

This problem can also be triggered when TCP flows use small MSS values,
as TSO auto sizing builds packets that are smaller than the default fq
quantum (3028 bytes)

This patch adds a 40 ms delay to guard flow credit refill.

Fixes: afe4fd062416 ("pkt_sched: fq: Fair Queue packet scheduler")
Signed-off-by: Eric Dumazet 
Cc: Maciej Żenczykowski 
Cc: Willem de Bruijn 
Cc: Yuchung Cheng 
Cc: Neal Cardwell 
Signed-off-by: David S. Miller 
Signed-off-by: Greg Kroah-Hartman

pkt_sched: fq: warn users using defrate

2013-12-08T15:29:12+00:00

[ Upstream commit 65c5189a2b57b9aa1d89e4b79da39928257c9505 ]

Commit 7eec4174ff29 ("pkt_sched: fq: fix non TCP flows pacing")
obsoleted TCA_FQ_FLOW_DEFAULT_RATE without notice for the users.

Suggested by David Miller

Signed-off-by: Eric Dumazet 
Signed-off-by: David S. Miller 
Signed-off-by: Greg Kroah-Hartman

perf: Fix perf ring buffer memory ordering

2013-10-29T11:01:19+00:00

The PPC64 people noticed a missing memory barrier and crufty old
comments in the perf ring buffer code. So update all the comments and
add the missing barrier.

When the architecture implements local_t using atomic_long_t there
will be double barriers issued; but short of introducing more
conditional barrier primitives this is the best we can do.

Reported-by: Victor Kaplansky 
Tested-by: Victor Kaplansky 
Signed-off-by: Peter Zijlstra 
Cc: Mathieu Desnoyers 
Cc: michael@ellerman.id.au
Cc: Paul McKenney 
Cc: Michael Neuling 
Cc: Frederic Weisbecker 
Cc: anton@samba.org
Cc: benh@kernel.crashing.org
Link: http://lkml.kernel.org/r/20131025173749.GG19466@laptop.lan
Signed-off-by: Ingo Molnar

Merge tag 'rdma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband

2013-10-23T06:51:25+00:00

Pull infiniband bugfix from Roland Dreier:
 "Disable not-quite-ready userspace ABI for IB flow steering"

* tag 'rdma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband:
  IB/core: Temporarily disable create_flow/destroy_flow uverbs