firefly-linux-kernel-4.4.55.git
9 years agoALSA: line6: Remove unused line6_midibuf_skip_message()
Chris Rorvick [Sun, 1 Feb 2015 07:01:09 +0000 (01:01 -0600)]
ALSA: line6: Remove unused line6_midibuf_skip_message()

Use of this function ended with commits 3e58c868db1d ("staging: line6:
drop midi_mask_receive") and af89d2897a71 ("staging: line6: drop
midi_mask_transmit".)

[Removed the corresponding line in midibuf.h, too -- tiwai]

Signed-off-by: Chris Rorvick <chris@rorvick.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
9 years agoALSA: line6: Remove unused line6_midibuf_status()
Chris Rorvick [Sun, 1 Feb 2015 07:01:08 +0000 (01:01 -0600)]
ALSA: line6: Remove unused line6_midibuf_status()

This function has not been used since merging the driver into the kernel
(and a good while before that.)

[Removed the corresponding line in midibuf.h, too -- tiwai]

Signed-off-by: Chris Rorvick <chris@rorvick.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
9 years agoMerge branch 'topic/line6' into for-next
Takashi Iwai [Fri, 30 Jan 2015 11:15:55 +0000 (12:15 +0100)]
Merge branch 'topic/line6' into for-next

9 years agoMerge branch 'topic/ak411x-fix' into for-next
Takashi Iwai [Wed, 28 Jan 2015 21:32:10 +0000 (22:32 +0100)]
Merge branch 'topic/ak411x-fix' into for-next

9 years agoALSA: ak411x: Fix race of reinit() calls
Takashi Iwai [Fri, 16 Jan 2015 12:03:28 +0000 (13:03 +0100)]
ALSA: ak411x: Fix race of reinit() calls

Protect the call with a mutex, as this may be called in parallel
(either from the PCM rate change and the clock change).

Acked-by: Jaroslav Kysela <perex@perex.cz>
Tested-by: Pavel Hofman <pavel.hofman@ivitera.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
9 years agoALSA: ak411x: Add PM helper functions
Takashi Iwai [Tue, 13 Jan 2015 10:24:08 +0000 (11:24 +0100)]
ALSA: ak411x: Add PM helper functions

Define snd_ak4114_suspend() and snd_ak4114_resume() functions to
handle PM properly, stopping and restarting the work at PM.
Currently only ice1712/juli.c deals with the PM and ak4114, so fix the
calls there appropriately.

The same PM functions are defined in ak4113.c, too, although they
aren't currently called yet (ice1712/quartet.c may be enhanced to
support PM later).

Acked-by: Jaroslav Kysela <perex@perex.cz>
Tested-by: Pavel Hofman <pavel.hofman@ivitera.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
9 years agoALSA: ak4114: Move EXPORT_SYMBOL() after each function
Takashi Iwai [Tue, 13 Jan 2015 09:58:31 +0000 (10:58 +0100)]
ALSA: ak4114: Move EXPORT_SYMBOL() after each function

... just to follow the standard coding style.

Acked-by: Jaroslav Kysela <perex@perex.cz>
Tested-by: Pavel Hofman <pavel.hofman@ivitera.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
9 years agoALSA: ak411x: Fix stall in work callback
Takashi Iwai [Tue, 13 Jan 2015 09:53:20 +0000 (10:53 +0100)]
ALSA: ak411x: Fix stall in work callback

When ak4114 work calls its callback and the callback invokes
ak4114_reinit(), it stalls due to flush_delayed_work().  For avoiding
this, control the reentrance by introducing a refcount.  Also
flush_delayed_work() is replaced with cancel_delayed_work_sync().

The exactly same bug is present in ak4113.c and fixed as well.

Reported-by: Pavel Hofman <pavel.hofman@ivitera.com>
Acked-by: Jaroslav Kysela <perex@perex.cz>
Tested-by: Pavel Hofman <pavel.hofman@ivitera.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
9 years agoALSA: line6: Remove snd_line6_ prefix of pcm property fields
Takashi Iwai [Wed, 28 Jan 2015 14:08:59 +0000 (15:08 +0100)]
ALSA: line6: Remove snd_line6_ prefix of pcm property fields

It's just superfluous and doesn't give any better readability.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
9 years agoALSA: line6: Remove invalid capability bits for PODxt Live Variax
Takashi Iwai [Wed, 28 Jan 2015 14:03:31 +0000 (15:03 +0100)]
ALSA: line6: Remove invalid capability bits for PODxt Live Variax

PODxt Live Variax doesn't have PCM and HWMON but only MIDI.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
9 years agoALSA: line6: Remove struct usb_line6_podhd
Takashi Iwai [Wed, 28 Jan 2015 14:00:01 +0000 (15:00 +0100)]
ALSA: line6: Remove struct usb_line6_podhd

It's identical with struct usb_line6.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
9 years agoALSA: line6: Move the contents of usbdefs.h into driver.h
Takashi Iwai [Wed, 28 Jan 2015 13:50:08 +0000 (14:50 +0100)]
ALSA: line6: Move the contents of usbdefs.h into driver.h

Most of them are rather relevant with the definitions in driver.h,
and there are only a few lines, so just rip it off.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
9 years agoALSA: line6: Remove revision.h
Takashi Iwai [Wed, 28 Jan 2015 13:45:22 +0000 (14:45 +0100)]
ALSA: line6: Remove revision.h

The definition is no longer used.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
9 years agoALSA: line6: Tidy up and typo fixes in comments
Takashi Iwai [Wed, 28 Jan 2015 13:43:11 +0000 (14:43 +0100)]
ALSA: line6: Tidy up and typo fixes in comments

Just reformatting the comments and typos fixed, no functional
changes.  Particularly,
- avoid the kerneldoc marker "/**",
- reduce multiple comment lines into single lines,
- corrected wrongly referred function names

Signed-off-by: Takashi Iwai <tiwai@suse.de>
9 years agoALSA: line6: Fix volume calculation for big-endian
Takashi Iwai [Wed, 28 Jan 2015 11:29:05 +0000 (12:29 +0100)]
ALSA: line6: Fix volume calculation for big-endian

Signed-off-by: Takashi Iwai <tiwai@suse.de>
9 years agoALSA: usx2y: Move UAPI definition into include/uapi/sound/usb_stream.h
Takashi Iwai [Wed, 28 Jan 2015 16:32:22 +0000 (17:32 +0100)]
ALSA: usx2y: Move UAPI definition into include/uapi/sound/usb_stream.h

The user-space API definition for usb_stream stuff should be moved
to include/uapi/sound to be exposed publicly.

While we're at it, add the missing ifdef guard for double inclusion,
too.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
9 years agoALSA: au88x0: Remove superfluous ifdef __KERNEL__
Takashi Iwai [Wed, 28 Jan 2015 16:26:45 +0000 (17:26 +0100)]
ALSA: au88x0: Remove superfluous ifdef __KERNEL__

Signed-off-by: Takashi Iwai <tiwai@suse.de>
9 years agoALSA: Include linux/uaccess.h and linux/bitopts.h instead of asm/*
Takashi Iwai [Wed, 28 Jan 2015 16:24:43 +0000 (17:24 +0100)]
ALSA: Include linux/uaccess.h and linux/bitopts.h instead of asm/*

Signed-off-by: Takashi Iwai <tiwai@suse.de>
9 years agoALSA: Include linux/io.h instead of asm/io.h
Takashi Iwai [Wed, 28 Jan 2015 15:49:33 +0000 (16:49 +0100)]
ALSA: Include linux/io.h instead of asm/io.h

Nowadays it's recommended.  Replace all in a shot.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
9 years agoALSA: sscape: add missing include of linux/io.h
Arnd Bergmann [Wed, 28 Jan 2015 15:04:46 +0000 (16:04 +0100)]
ALSA: sscape: add missing include of linux/io.h

The soundscape driver uses the ISA inb/outb functions declared
in linux/io.h, so it needs to include this header to avoid
a build error:

sscape.c: In function 'sscape_write_unsafe':
sscape.c:203:2: error: implicit declaration of function 'outb' [-Werror=implicit-function-declaration]

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
9 years agoMerge branch 'topic/line6' into for-next
Takashi Iwai [Wed, 28 Jan 2015 06:24:41 +0000 (07:24 +0100)]
Merge branch 'topic/line6' into for-next

9 years agoALSA: line6: Handle error from line6_pcm_acquire()
Takashi Iwai [Tue, 27 Jan 2015 15:42:14 +0000 (16:42 +0100)]
ALSA: line6: Handle error from line6_pcm_acquire()

Tested-by: Chris Rorvick <chris@rorvick.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
9 years agoALSA: line6: Make common PCM pointer callback
Takashi Iwai [Tue, 27 Jan 2015 14:41:27 +0000 (15:41 +0100)]
ALSA: line6: Make common PCM pointer callback

Both playback and capture callbacks are identical, so let's merge
them.

Tested-by: Chris Rorvick <chris@rorvick.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
9 years agoALSA: line6: Reorganize PCM stream handling
Takashi Iwai [Tue, 27 Jan 2015 14:24:09 +0000 (15:24 +0100)]
ALSA: line6: Reorganize PCM stream handling

The current code deals with the stream start / stop solely via
line6_pcm_acquire() and line6_pcm_release().  This was (supposedly)
intended to avoid the races, but it doesn't work as expected.  The
concurrent acquire and release calls can be performed without proper
protections, thus this might result in memory corruption.
Furthermore, we can't take a mutex to protect the whole function
because it can be called from the PCM trigger callback that is an
atomic context.  Also spinlock isn't appropriate because the function
allocates with kmalloc with GFP_KERNEL.  That is, these function just
lead to singular problems.

This is an attempt to reduce the existing races.  First off, separate
both the stream buffer management and the stream URB management.  The
former is protected via a newly introduced state_mutex while the
latter is protected via each line6_pcm_stream lock.

Secondly, the stream state are now managed in opened and running bit
flags of each line6_pcm_stream.  Not only this a bit clearer than
previous combined bit flags, this also gives a better abstraction.
These rewrites allows us to make common hw_params and hw_free
callbacks for both playback and capture directions.

For the monitor and impulse operations, still line6_pcm_acquire() and
line6_pcm_release() are used.  They call internally the corresponding
functions for both playback and capture streams with proper lock or
mutex.  Unlike the previous versions, these function don't take the
bit masks but the only single type value.  Also they are supposed to
be applied only as duplex operations.

Tested-by: Chris Rorvick <chris@rorvick.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
9 years agoALSA: line6: Clear prev_fbuf and prev_fsize properly
Takashi Iwai [Tue, 27 Jan 2015 15:17:26 +0000 (16:17 +0100)]
ALSA: line6: Clear prev_fbuf and prev_fsize properly

Clearing prev_fsize in line6_pcm_acquire() is pretty racy.
This can be called at any time while the stream is being played.
Rather better to clear prev_fbuf and prev_fsize at the proper place
like the stream stop for capture, and just after copying the monitor /
impulse data inside the spinlock.

Tested-by: Chris Rorvick <chris@rorvick.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
9 years agoALSA: line6: Fix racy loopback handling
Takashi Iwai [Tue, 27 Jan 2015 11:50:44 +0000 (12:50 +0100)]
ALSA: line6: Fix racy loopback handling

The impulse and monitor handling in submit_audio_out_urb() isn't
protected thus this can be racy with the capture stream handling.
This patch extends the range to protect via each stream's spinlock
(now the whole submit_audio_*_urb() are covered), and take the capture
stream lock additionally for the impulse and monitor handling part.

Tested-by: Chris Rorvick <chris@rorvick.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
9 years agoALSA: line6: Minor tidy up in line6_probe()
Takashi Iwai [Sun, 25 Jan 2015 17:41:26 +0000 (18:41 +0100)]
ALSA: line6: Minor tidy up in line6_probe()

Move the check of multi configurations before snd_card_new() as a
short path, and reduce superfluous pointer references.

Tested-by: Chris Rorvick <chris@rorvick.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
9 years agoALSA: line6: Let snd_card_new() allocate private data
Takashi Iwai [Sun, 25 Jan 2015 17:36:29 +0000 (18:36 +0100)]
ALSA: line6: Let snd_card_new() allocate private data

Instead of allocating the private data individually in each driver's
probe at first, let snd_card_new() allocate the data that is called in
line6_probe().  This simplifies the primary probe functions.

Tested-by: Chris Rorvick <chris@rorvick.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
9 years agoALSA: line6: Drop interface argument from private_init and disconnect callbacks
Takashi Iwai [Sun, 25 Jan 2015 17:22:58 +0000 (18:22 +0100)]
ALSA: line6: Drop interface argument from private_init and disconnect callbacks

The interface argument is used just for retrieving the assigned
device, which can be already found in line6->ifcdev.  Drop them from
the callbacks.  Also, pass the usb id to private_init so that the
driver can deal with it there.  This is a preliminary work for the
further cleanup to move the whole allocation into driver.c.

Tested-by: Chris Rorvick <chris@rorvick.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
9 years agoALSA: line6: Skip volume manipulation during silence copying
Takashi Iwai [Fri, 23 Jan 2015 15:58:30 +0000 (16:58 +0100)]
ALSA: line6: Skip volume manipulation during silence copying

A minor optimization; while pausing, the driver just copies the zero
that doesn't need any volume changes.

Tested-by: Chris Rorvick <chris@rorvick.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
9 years agoALSA: line6: Do clipping in volume / monitor manipulations
Takashi Iwai [Fri, 23 Jan 2015 15:54:36 +0000 (16:54 +0100)]
ALSA: line6: Do clipping in volume / monitor manipulations

Tested-by: Chris Rorvick <chris@rorvick.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
9 years agoALSA: line6: Consolidate PCM stream buffer allocation and free
Takashi Iwai [Fri, 23 Jan 2015 15:25:03 +0000 (16:25 +0100)]
ALSA: line6: Consolidate PCM stream buffer allocation and free

The PCM stream buffer allocation and free are identical for both
playback and capture streams.  Provide single helper functions.
These are used only in pcm.c, thus they can be even static.

Tested-by: Chris Rorvick <chris@rorvick.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
9 years agoALSA: line6: Use dev_err()
Takashi Iwai [Fri, 23 Jan 2015 15:20:50 +0000 (16:20 +0100)]
ALSA: line6: Use dev_err()

This is the last remaining snd_printk() usage in this driver.

Tested-by: Chris Rorvick <chris@rorvick.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
9 years agoALSA: line6: Consolidate URB unlink and sync helpers
Takashi Iwai [Fri, 23 Jan 2015 15:18:42 +0000 (16:18 +0100)]
ALSA: line6: Consolidate URB unlink and sync helpers

The codes to unlink and sync URBs are identical for both playback and
capture streams.  Consolidate to single helper functions.

Tested-by: Chris Rorvick <chris@rorvick.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
9 years agoALSA: line6: Rearrange PCM structure
Takashi Iwai [Fri, 23 Jan 2015 15:10:57 +0000 (16:10 +0100)]
ALSA: line6: Rearrange PCM structure

Introduce a new line6_pcm_stream structure and group individual
fields of snd_line6_pcm struct to playback and capture groups.

This patch itself just does rename and nothing else.  More
meaningful cleanups based on these fields shuffling will follow.

Tested-by: Chris Rorvick <chris@rorvick.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
9 years agoALSA: line6: Drop voodoo workarounds
Takashi Iwai [Fri, 23 Jan 2015 14:12:13 +0000 (15:12 +0100)]
ALSA: line6: Drop voodoo workarounds

If the problem still really remains, we should fix it instead of
papering over it like this...

Tested-by: Chris Rorvick <chris@rorvick.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
9 years agoALSA: line6: Use incremental loop
Takashi Iwai [Fri, 23 Jan 2015 14:08:40 +0000 (15:08 +0100)]
ALSA: line6: Use incremental loop

Using a decremental loop without particular reasons worsens the
readability a lot.  Use incremental loops instead.

Tested-by: Chris Rorvick <chris@rorvick.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
9 years agoALSA: line6: Drop superfluous spinlock for trigger
Takashi Iwai [Fri, 23 Jan 2015 13:49:22 +0000 (14:49 +0100)]
ALSA: line6: Drop superfluous spinlock for trigger

The trigger callback is already spinlocked, so we need no more lock
here (even for the linked substreams).  Let's drop it.

Tested-by: Chris Rorvick <chris@rorvick.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
9 years agoALSA: line6: Fix the error recovery in line6_pcm_acquire()
Takashi Iwai [Fri, 23 Jan 2015 13:34:42 +0000 (14:34 +0100)]
ALSA: line6: Fix the error recovery in line6_pcm_acquire()

line6_pcm_acquire() tries to restore the newly obtained resources at
the error path.  But some flags aren't recorded and released properly
when the corresponding buffer is already present.  These bits have to
be cleared in the error recovery, too.

Also, "flags_final" can be initialized to zero since we pass only the
subset of "channels" bits.

Tested-by: Chris Rorvick <chris@rorvick.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
9 years agoALSA: line6: Use logical OR
Takashi Iwai [Fri, 23 Jan 2015 13:31:03 +0000 (14:31 +0100)]
ALSA: line6: Use logical OR

Fixed a few places using bits OR wrongly for condition checks.

Tested-by: Chris Rorvick <chris@rorvick.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
9 years agoALSA: line6: Fix missing error handling in line6_pcm_acquire()
Takashi Iwai [Fri, 23 Jan 2015 12:00:03 +0000 (13:00 +0100)]
ALSA: line6: Fix missing error handling in line6_pcm_acquire()

Tested-by: Chris Rorvick <chris@rorvick.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
9 years agoALSA: line6: Reduce superfluous spinlock in midi.c
Takashi Iwai [Fri, 23 Jan 2015 11:39:11 +0000 (12:39 +0100)]
ALSA: line6: Reduce superfluous spinlock in midi.c

The midi_transmit_lock is used always inside the send_urb_lock, thus
it doesn't play any role.  Let's kill it.  Also, rename
"send_urb_lock" as a more simple name "lock" since this is the only
lock for midi.

Tested-by: Chris Rorvick <chris@rorvick.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
9 years agoALSA: line6: Remove unused line6_nop_read()
Takashi Iwai [Fri, 23 Jan 2015 11:30:48 +0000 (12:30 +0100)]
ALSA: line6: Remove unused line6_nop_read()

The function isn't used any longer after rewriting from sysfs to leds
class in toneport.c.

Tested-by: Chris Rorvick <chris@rorvick.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
9 years agoALSA: line6: Fix memory leak at probe error path
Takashi Iwai [Fri, 23 Jan 2015 11:27:39 +0000 (12:27 +0100)]
ALSA: line6: Fix memory leak at probe error path

Fix memory leak at probe error path by rearranging the call order in
line6_destruct() so that the common destructor is always called.
Also this simplifies the error path to a single goto label.

Tested-by: Chris Rorvick <chris@rorvick.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
9 years agoALSA: line6: Minor refactoring
Takashi Iwai [Fri, 23 Jan 2015 11:24:03 +0000 (12:24 +0100)]
ALSA: line6: Minor refactoring

Split some codes in the lengthy line6_probe().

Tested-by: Chris Rorvick <chris@rorvick.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
9 years agoALSA: line6/toneport: Implement LED controls via LED class
Takashi Iwai [Tue, 20 Jan 2015 08:36:31 +0000 (09:36 +0100)]
ALSA: line6/toneport: Implement LED controls via LED class

Instead of non-standard sysfs, reimplement the LED controls on
TonePort as LED class devices.

Tested-by: Chris Rorvick <chris@rorvick.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
9 years agoALSA: line6/toneport: Fix wrong argument for toneport_has_led()
Takashi Iwai [Tue, 20 Jan 2015 07:55:06 +0000 (08:55 +0100)]
ALSA: line6/toneport: Fix wrong argument for toneport_has_led()

Tested-by: Chris Rorvick <chris@rorvick.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
9 years agoALSA: line6: Don't forget to call driver's destructor at error path
Takashi Iwai [Tue, 20 Jan 2015 08:09:27 +0000 (09:09 +0100)]
ALSA: line6: Don't forget to call driver's destructor at error path

Currently disconnect callback is used as a driver's destructor, and
this has to be called not only at the disconnection time but also at
the error paths during probe.

Tested-by: Chris Rorvick <chris@rorvick.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
9 years agoALSA: line6/toneport: Move setup_timer() at the beginning
Takashi Iwai [Tue, 20 Jan 2015 08:40:20 +0000 (09:40 +0100)]
ALSA: line6/toneport: Move setup_timer() at the beginning

... so that timer_del_sync() in the destructor can be called safely at
any time.  Also move the mod_timer() call in toneport_setup(), which
is a bit clearer place.

Tested-by: Chris Rorvick <chris@rorvick.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
9 years agoALSA: line6: Remove superfluous NULL checks in each driver
Takashi Iwai [Tue, 20 Jan 2015 07:42:42 +0000 (08:42 +0100)]
ALSA: line6: Remove superfluous NULL checks in each driver

The interface and driver objects are always set when callbacks are
called.  Drop such superfluous NULL checks in init and disconnect
calls of each driver.

Tested-by: Chris Rorvick <chris@rorvick.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
9 years agoALSA: line6: Abort if inconsistent usbdev is found at disconnect
Takashi Iwai [Tue, 20 Jan 2015 08:58:54 +0000 (09:58 +0100)]
ALSA: line6: Abort if inconsistent usbdev is found at disconnect

It's utterly unsafe to proceed further the disconnect procedure if the
assigned usbdev is inconsistent with the expected object.  Better to
put a WARN_ON() for more cautions and abort immediately.

Tested-by: Chris Rorvick <chris@rorvick.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
9 years agoALSA: line6: Yet more cleanup of superfluous NULL checks
Takashi Iwai [Tue, 20 Jan 2015 07:40:51 +0000 (08:40 +0100)]
ALSA: line6: Yet more cleanup of superfluous NULL checks

... in line6_disconnect() as well.

Tested-by: Chris Rorvick <chris@rorvick.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
9 years agoALSA: seq: increase the maximum number of queues
Clemens Ladisch [Sun, 25 Jan 2015 13:36:46 +0000 (14:36 +0100)]
ALSA: seq: increase the maximum number of queues

Queues are used both for scheduling playback events and for assigning
timestamps to recorded events, so it is easy to need quite a lot of
them, especially on a multi-user system.  Additionally, the actual
queue objects are allocated dynamically, so it does not really make
sense to have a low limit.  Increase it to something still sane.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
9 years agoALSA: seq: remove unused callback_all field
Clemens Ladisch [Sun, 25 Jan 2015 13:36:27 +0000 (14:36 +0100)]
ALSA: seq: remove unused callback_all field

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
9 years agoALSA: seq: remove unused symbols
Clemens Ladisch [Sun, 25 Jan 2015 13:35:58 +0000 (14:35 +0100)]
ALSA: seq: remove unused symbols

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
9 years agoALSA: seq: fix off-by-one error in port limit check
Clemens Ladisch [Sun, 25 Jan 2015 13:35:24 +0000 (14:35 +0100)]
ALSA: seq: fix off-by-one error in port limit check

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
9 years agoALSA: seq: correctly report maximum number of ports
Clemens Ladisch [Sun, 25 Jan 2015 13:34:57 +0000 (14:34 +0100)]
ALSA: seq: correctly report maximum number of ports

Due to SNDRV_SEQ_ADDRESS_BROADCAST, not all 256 port number values can
be used.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
9 years agoMerge branch 'for-linus' into for-next
Takashi Iwai [Mon, 26 Jan 2015 12:53:41 +0000 (13:53 +0100)]
Merge branch 'for-linus' into for-next

Sync with the latest 3.19-rc state for applying other ALSA sequencer
core fixes.

9 years agoALSA: seq-dummy: remove deadlock-causing events on close
Clemens Ladisch [Sun, 25 Jan 2015 13:34:29 +0000 (14:34 +0100)]
ALSA: seq-dummy: remove deadlock-causing events on close

When the last subscriber to a "Through" port has been removed, the
subscribed destination ports might still be active, so it would be
wrong to send "all sounds off" and "reset controller" events to them.
The proper place for such a shutdown would be the closing of the actual
MIDI port (and close_substream() in rawmidi.c already can do this).

This also fixes a deadlock when dummy_unuse() tries to send events to
its own port that is already locked because it is being freed.

Reported-by: Peter Billam <peter@www.pjb.com.au>
Cc: <stable@vger.kernel.org>
Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
9 years agoMerge tag 'asoc-v3.19-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie...
Takashi Iwai [Mon, 26 Jan 2015 12:33:39 +0000 (13:33 +0100)]
Merge tag 'asoc-v3.19-rc6' of git://git./linux/kernel/git/broonie/sound into for-linus

ASoC: Fixes for v3.19

There's a lot more fixes here than I'd like since I've been lax in
sending things throughout the release cycle but there's only two in
generic code and they've had quite some time to cook in -next so
hopefully on balance are OK.

The two generic fixes are a fix for crashes on capture DAIs in the
compress code and a fix for error handling on probe failures which would
have been harmless in the past but now oopses with the new dynamic probe
code.

9 years agoMerge remote-tracking branches 'asoc/fix/rt5677', 'asoc/fix/simple', 'asoc/fix/ts3a22...
Mark Brown [Mon, 26 Jan 2015 11:29:58 +0000 (11:29 +0000)]
Merge remote-tracking branches 'asoc/fix/rt5677', 'asoc/fix/simple', 'asoc/fix/ts3a227e', 'asoc/fix/wm8904' and 'asoc/fix/wm8960' into asoc-linus

9 years agoMerge remote-tracking branches 'asoc/fix/adi', 'asoc/fix/compress', 'asoc/fix/fsl...
Mark Brown [Mon, 26 Jan 2015 11:29:55 +0000 (11:29 +0000)]
Merge remote-tracking branches 'asoc/fix/adi', 'asoc/fix/compress', 'asoc/fix/fsl-ssi', 'asoc/fix/imx', 'asoc/fix/intel', 'asoc/fix/omap', 'asoc/fix/rockchip' and 'asoc/fix/rt286' into asoc-linus

9 years agoMerge remote-tracking branch 'asoc/fix/pcm512x' into asoc-linus
Mark Brown [Mon, 26 Jan 2015 11:29:55 +0000 (11:29 +0000)]
Merge remote-tracking branch 'asoc/fix/pcm512x' into asoc-linus

9 years agoMerge remote-tracking branch 'asoc/fix/fsl-esai' into asoc-linus
Mark Brown [Mon, 26 Jan 2015 11:29:54 +0000 (11:29 +0000)]
Merge remote-tracking branch 'asoc/fix/fsl-esai' into asoc-linus

9 years agoLinux 3.19-rc6
Linus Torvalds [Mon, 26 Jan 2015 04:04:41 +0000 (20:04 -0800)]
Linux 3.19-rc6

9 years agoMerge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Mon, 26 Jan 2015 02:11:17 +0000 (18:11 -0800)]
Merge branch 'x86-urgent-for-linus' of git://git./linux/kernel/git/tip/tip

Pull x86 fixes from Thomas Gleixner:
 "Hopefully the last round of fixes for 3.19

   - regression fix for the LDT changes
   - regression fix for XEN interrupt handling caused by the APIC
     changes
   - regression fixes for the PAT changes
   - last minute fixes for new the MPX support
   - regression fix for 32bit UP
   - fix for a long standing relocation issue on 64bit tagged for stable
   - functional fix for the Hyper-V clocksource tagged for stable
   - downgrade of a pr_err which tends to confuse users

  Looks a bit on the large side, but almost half of it are valuable
  comments"

* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/tsc: Change Fast TSC calibration failed from error to info
  x86/apic: Re-enable PCI_MSI support for non-SMP X86_32
  x86, mm: Change cachemode exports to non-gpl
  x86, tls: Interpret an all-zero struct user_desc as "no segment"
  x86, tls, ldt: Stop checking lm in LDT_empty
  x86, mpx: Strictly enforce empty prctl() args
  x86, mpx: Fix potential performance issue on unmaps
  x86, mpx: Explicitly disable 32-bit MPX support on 64-bit kernels
  x86, hyperv: Mark the Hyper-V clocksource as being continuous
  x86: Don't rely on VMWare emulating PAT MSR correctly
  x86, irq: Properly tag virtualization entry in /proc/interrupts
  x86, boot: Skip relocs when load address unchanged
  x86/xen: Override ACPI IRQ management callback __acpi_unregister_gsi
  ACPI: pci: Do not clear pci_dev->irq in acpi_pci_irq_disable()
  x86/xen: Treat SCI interrupt as normal GSI interrupt

9 years agoMerge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Mon, 26 Jan 2015 02:07:01 +0000 (18:07 -0800)]
Merge branch 'irq-urgent-for-linus' of git://git./linux/kernel/git/tip/tip

Pull irq fixes from Thomas Gleixner:
 "From the irqchip departement you get:

   - regression fix for omap-intc

   - regression fix for atmel-aic-common

   - functional correctness fix for hip04

   - type mismatch fix for gic-v3-its

   - proper error pointer check for mtd-sysirq

  Mostly one and two liners except for the omap regression fix which is
  slightly larger than desired"

* 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  irqchip: atmel-aic-common: Prevent clobbering of priority when changing IRQ type
  irqchip: omap-intc: Fix legacy DMA regression
  irqchip: gic-v3-its: Fix use of max with decimal constant
  irqchip: hip04: Initialize hip04_cpu_map to 0xffff
  irqchip: mtk-sysirq: Use IS_ERR() instead of NULL pointer check

9 years agoMerge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Mon, 26 Jan 2015 01:47:34 +0000 (17:47 -0800)]
Merge branch 'timers-urgent-for-linus' of git://git./linux/kernel/git/tip/tip

Pull timer fixes from Thomas Gleixner:
 "A set of small fixes:

   - regression fix for exynos_mct clocksource

   - trivial build fix for kona clocksource

   - functional one liner fix for the sh_tmu clocksource

   - two validation fixes to prevent (root only) data corruption in the
     kernel via settimeofday and adjtimex.  Tagged for stable"

* 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  time: adjtimex: Validate the ADJ_FREQUENCY values
  time: settimeofday: Validate the values of tv from user
  clocksource: sh_tmu: Set cpu_possible_mask to fix SMP broadcast
  clocksource: kona: fix __iomem annotation
  clocksource: exynos_mct: Fix bitmask regression for exynos4_mct_write

9 years agoMerge tag 'armsoc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm...
Linus Torvalds [Mon, 26 Jan 2015 01:29:06 +0000 (17:29 -0800)]
Merge tag 'armsoc-for-linus' of git://git./linux/kernel/git/arm/arm-soc

Pull ARM SoC fixes from Olof Johansson:
 "A week's worth of fixes for various ARM platforms.  Diff wise, the
  largest fix is for OMAP to deal with how GIC now registers interrupts
  (irq_domain_add_legacy() -> irq_domain_add_linear() changes).

  Besides this, a few more renesas platforms needed the GIC instatiation
  done for legacy boards.  There's also a fix that disables coherency of
  mvebu due to issues, and a few other smaller fixes"

* tag 'armsoc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  arm64: dts: add baud rate to Juno stdout-path
  ARM: dts: imx25: Fix PWM "per" clocks
  bus: mvebu-mbus: fix support of MBus window 13
  Merge tag 'mvebu-fixes-3.19-3' of git://git.infradead.org/linux-mvebu into fixes
  ARM: mvebu: completely disable hardware I/O coherency
  ARM: OMAP: Work around hardcoded interrupts
  ARM: shmobile: r8a7779: Instantiate GIC from C board code in legacy builds
  ARM: shmobile: r8a7778: Instantiate GIC from C board code in legacy builds
  arm: boot: dts: dra7: enable dwc3 suspend PHY quirk

9 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Linus Torvalds [Mon, 26 Jan 2015 01:27:18 +0000 (17:27 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/viro/vfs

Pull vfs fixes from Al Viro:
 "A couple of fixes - deadlock in CIFS and build breakage in cris serial
  driver (resurfaced f_dentry in there)"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  VFS: Convert file->f_dentry->d_inode to file_inode()
  fix deadlock in cifs_ioctl_clone()

9 years agoMerge tag 'dm-3.19-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/device...
Linus Torvalds [Mon, 26 Jan 2015 01:25:01 +0000 (17:25 -0800)]
Merge tag 'dm-3.19-fixes-2' of git://git./linux/kernel/git/device-mapper/linux-dm

Pull device mapper fixes from Mike Snitzer:
 "Two stable fixes for dm-cache and one 3.19 DM core fix:

   - fix potential for dm-cache metadata corruption via stale metadata
     buffers being used when switching an inactive cache table to
     active; this could occur due to each table having it's own bufio
     client rather than sharing the client between tables.

   - fix dm-cache target to properly account for discard IO while
     suspending otherwise IO quiescing could complete prematurely.

   - fix DM core's handling of multiple internal suspends by maintaining
     an 'internal_suspend_count' and only resuming the device when this
     count drops to zero"

* tag 'dm-3.19-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
  dm: fix handling of multiple internal suspends
  dm cache: fix problematic dual use of a single migration count variable
  dm cache: share cache-metadata object across inactive and active DM tables

9 years agoMerge branch 'for-linus' of git://git.kernel.dk/linux-block
Linus Torvalds [Mon, 26 Jan 2015 01:23:34 +0000 (17:23 -0800)]
Merge branch 'for-linus' of git://git.kernel.dk/linux-block

Pull two block layer fixes from Jens Axboe:
 "Two small patches that should make it into 3.19:

   - a fixup from me for NVMe, making the cq_vector a signed variable.
     Otherwise our -1 comparison fails, and commit 2b25d981790b doesn't
     do what it was supposed to.

   - a fixup for the hotplug handling for blk-mq from Ming Lei, using
     the proper kobject referencing to ensure we release resources at
     the right time"

* 'for-linus' of git://git.kernel.dk/linux-block:
  blk-mq: fix hctx/ctx kobject use-after-free
  NVMe: cq_vector should be signed

9 years agoMerge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Linus Torvalds [Sat, 24 Jan 2015 22:52:30 +0000 (14:52 -0800)]
Merge tag 'scsi-fixes' of git://git./linux/kernel/git/jejb/scsi

pULL SCSI fixes from James Bottomley:
 "This consists of four real fixes and three MAINTAINER updates.

  Three of the fixes are obvious (the DIX and atomic allocation are bug
  on and warn on fixes and the other is just trivial) and the ipr one is
  a bit more involved but is required because without it, the card
  double completes aborted commands and causes a kernel oops"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  MAINTAINERS: ibmvscsi driver maintainer change
  MAINTAINERS: ibmvfc driver maintainer change
  MAINTAINERS: Remove self as isci maintainer
  scsi_debug: test always evaluates to false, || should be used instead
  scsi: Avoid crashing if device uses DIX but adapter does not support it
  scsi_debug: use atomic allocation in resp_rsup_opcodes
  ipr: wait for aborted command responses

9 years agoMerge git://www.linux-watchdog.org/linux-watchdog
Linus Torvalds [Sat, 24 Jan 2015 22:47:24 +0000 (14:47 -0800)]
Merge git://www.linux-watchdog.org/linux-watchdog

Pull watchdog fixes from Wim Van Sebroeck:
 "This will fix reboot issues with the imx2_wdt driver and it also drops
  some forgotten owner assignments from platform_drivers"

* git://www.linux-watchdog.org/linux-watchdog:
  watchdog: drop owner assignment from platform_drivers
  watchdog: imx2_wdt: Disable power down counter on boot
  watchdog: imx2_wdt: Improve power management support.

9 years agoMerge branch 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelv...
Linus Torvalds [Sat, 24 Jan 2015 22:37:31 +0000 (14:37 -0800)]
Merge branch 'hwmon-for-linus' of git://git./linux/kernel/git/jdelvare/staging

Pull hwmon update from Jean Delvare:
 "This contains a single thing: a new driver for the temperature sensor
  embedded in the Intel 5500/5520/X58 chipsets.

  Sorry for the late request, it's been so long since I last sent a pull
  request and I've been so busy with other tasks meanwhile that I simply
  forgot about these patches.  But given that this is a new driver, it
  can't introduce any regression so I thought it could still be OK.

  This has been in linux-next for months now"

* 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging:
  hwmon: (i5500_temp) Convert to use ATTRIBUTE_GROUPS macro
  hwmon: (i5500_temp) Convert to module_pci_driver
  hwmon: (i5500_temp) Don't bind to disabled sensors
  hwmon: (i5500_temp) Convert to devm_hwmon_device_register_with_groups
  hwmon: (i5500_temp) New driver for the Intel 5500/5520/X58 chipsets

9 years agoMerge tag 'media/v3.19-4' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab...
Linus Torvalds [Sat, 24 Jan 2015 22:34:54 +0000 (14:34 -0800)]
Merge tag 'media/v3.19-4' of git://git./linux/kernel/git/mchehab/linux-media

Pull media fixes from Mauro Carvalho Chehab:
  - fix some race conditions caused by a regression on videobuf2
  - fix a interrupt release bug on cx23885
  - fix support for Mygica T230 and HVR4400
  - fix compilation breakage when USB is not selected on tlg2300
  - fix capabilities report on ompa3isp, soc-camera, rcar_vin and
    pvrusb2

* tag 'media/v3.19-4' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media:
  [media] omap3isp: Correctly set QUERYCAP capabilities
  [media] cx23885: fix free interrupt bug
  [media] pvrusb2: fix missing device_caps in querycap
  [media] vb2: fix vb2_thread_stop race conditions
  [media] rcar_vin: Update device_caps and capabilities in querycap
  [media] soc-camera: fix device capabilities in multiple camera host drivers
  [media] Fix Mygica T230 support
  [media] cx23885: Split Hauppauge WinTV Starburst from HVR4400 card entry
  [media] tlg2300: Fix media dependencies

9 years agodm: fix handling of multiple internal suspends
Mikulas Patocka [Thu, 8 Jan 2015 23:52:26 +0000 (18:52 -0500)]
dm: fix handling of multiple internal suspends

Commit ffcc393641 ("dm: enhance internal suspend and resume interface")
attempted to handle multiple internal suspends on the same device, but
it did that incorrectly.  When these functions are called in this order
on the same device the device is no longer suspended, but it should be:
dm_internal_suspend_noflush
dm_internal_suspend_noflush
dm_internal_resume

Fix this bug by maintaining an 'internal_suspend_count' and resuming
the device when this count drops to zero.

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
9 years agohwmon: (i5500_temp) Convert to use ATTRIBUTE_GROUPS macro
Axel Lin [Sat, 24 Jan 2015 13:16:22 +0000 (14:16 +0100)]
hwmon: (i5500_temp) Convert to use ATTRIBUTE_GROUPS macro

Use ATTRIBUTE_GROUPS macro to simplify the code a bit.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Jean Delvare <jdelvare@suse.de>
9 years agohwmon: (i5500_temp) Convert to module_pci_driver
Axel Lin [Sat, 24 Jan 2015 13:16:22 +0000 (14:16 +0100)]
hwmon: (i5500_temp) Convert to module_pci_driver

Use module_pci_driver to simplify the code a bit.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Jean Delvare <jdelvare@suse.de>
9 years agohwmon: (i5500_temp) Don't bind to disabled sensors
Jean Delvare [Sat, 24 Jan 2015 13:16:21 +0000 (14:16 +0100)]
hwmon: (i5500_temp) Don't bind to disabled sensors

On many motherboards, for an unknown reason, the thermal sensor seems
to be disabled and will return a constant temperature value of 36.5
degrees Celsius. Don't bind to the device in that case, so that we
don't report this bogus value to userspace.

Signed-off-by: Jean Delvare <jdelvare@suse.de>
Cc: Romain Dolbeau <romain@dolbeau.org>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
9 years agohwmon: (i5500_temp) Convert to devm_hwmon_device_register_with_groups
Jean Delvare [Sat, 24 Jan 2015 13:16:21 +0000 (14:16 +0100)]
hwmon: (i5500_temp) Convert to devm_hwmon_device_register_with_groups

Use devm_hwmon_device_register_with_groups() to simplify the code a
bit.

Signed-off-by: Jean Delvare <jdelvare@suse.de>
Cc: Romain Dolbeau <romain@dolbeau.org>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
9 years agohwmon: (i5500_temp) New driver for the Intel 5500/5520/X58 chipsets
Jean Delvare [Sat, 24 Jan 2015 13:16:21 +0000 (14:16 +0100)]
hwmon: (i5500_temp) New driver for the Intel 5500/5520/X58 chipsets

The Intel 5500, 5520 and X58 chipsets embed a digital thermal sensor.
This new driver supports it.

Note that on many boards the sensor seems to be disabled and reports
the minimum value (36.5 degrees Celsius) all the time.

Signed-off-by: Jean Delvare <jdelvare@suse.de>
Tested-by: Romain Dolbeau <romain@dolbeau.org>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
9 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux...
Linus Torvalds [Sat, 24 Jan 2015 02:31:27 +0000 (14:31 +1200)]
Merge branch 'for-linus' of git://git./linux/kernel/git/mason/linux-btrfs

Pull btrfs fixes from Chris Mason:
 "We have a few fixes in my for-linus branch.

  Qu Wenruo's batch fix a regression between some our merge window pull
  and the inode_cache feature.  The rest are smaller bugs"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs:
  btrfs: Don't call btrfs_start_transaction() on frozen fs to avoid deadlock.
  btrfs: Fix the bug that fs_info->pending_changes is never cleared.
  btrfs: fix state->private cast on 32 bit machines
  Btrfs: fix race deleting block group from space_info->ro_bgs list
  Btrfs: fix incorrect freeing in scrub_stripe
  btrfs: sync ioctl, handle errors after transaction start

9 years agoMerge tag 'platform-drivers-x86-v3.19-2' of git://git.infradead.org/users/dvhart...
Linus Torvalds [Fri, 23 Jan 2015 23:26:13 +0000 (11:26 +1200)]
Merge tag 'platform-drivers-x86-v3.19-2' of git://git.infradead.org/users/dvhart/linux-platform-drivers-x86

Pull platform driver fix from Darren Hart:
 "Revert keyboard backlight sysfs support and documentation.

  The support for the dell-laptop keyboard backlight was flawed and the
  fix:

        https://lkml.org/lkml/2015/1/14/539

  was more invasive that I felt comfortable sending at RC5.

  This series reverts the support for the dell-laptop keyboard backlight
  as well as the documentation for the newly created sysfs attributes.

  We'll get this implemented correctly for 3.20"

* tag 'platform-drivers-x86-v3.19-2' of git://git.infradead.org/users/dvhart/linux-platform-drivers-x86:
  Revert "platform: x86: dell-laptop: Add support for keyboard backlight"
  Revert "Documentation: Add entry for dell-laptop sysfs interface"

9 years agoMerge tag 'pci-v3.19-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaa...
Linus Torvalds [Fri, 23 Jan 2015 22:58:47 +0000 (10:58 +1200)]
Merge tag 'pci-v3.19-fixes-1' of git://git./linux/kernel/git/helgaas/pci

Pull PCI fixes from Bjorn Helgaas:
 "These are fixes for:

   - a resource management problem that causes a Radeon "Fatal error
     during GPU init" on machines where the BIOS programmed an invalid
     Root Port window.  This was a regression in v3.16.

   - an Atheros AR93xx device that doesn't handle PCI bus resets
     correctly.  This was a regression in v3.14.

   - an out-of-date email address"

* tag 'pci-v3.19-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
  MAINTAINERS: Update Richard Zhu's email address
  sparc/PCI: Clip bridge windows to fit in upstream windows
  powerpc/PCI: Clip bridge windows to fit in upstream windows
  parisc/PCI: Clip bridge windows to fit in upstream windows
  mn10300/PCI: Clip bridge windows to fit in upstream windows
  microblaze/PCI: Clip bridge windows to fit in upstream windows
  ia64/PCI: Clip bridge windows to fit in upstream windows
  frv/PCI: Clip bridge windows to fit in upstream windows
  alpha/PCI: Clip bridge windows to fit in upstream windows
  x86/PCI: Clip bridge windows to fit in upstream windows
  PCI: Add pci_claim_bridge_resource() to clip window if necessary
  PCI: Add pci_bus_clip_resource() to clip to fit upstream window
  PCI: Pass bridge device, not bus, when updating bridge windows
  PCI: Mark Atheros AR93xx to avoid bus reset
  PCI: Add flag for devices where we can't use bus reset

9 years agoMerge tag 'devicetree-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Fri, 23 Jan 2015 22:55:05 +0000 (10:55 +1200)]
Merge tag 'devicetree-for-linus' of git://git./linux/kernel/git/glikely/linux

Pull devicetree bug fixes and documentation updates from Grant Likely:
 "A few bugfixes for the new DT overlay feature, documentation updates,
  spelling corrections, and changes to MAINTAINERS.  Nothing earth
  shattering here"

* tag 'devicetree-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/glikely/linux:
  of/unittest: Overlays with sub-devices tests
  of/platform: Handle of_populate drivers in notifier
  of/overlay: Do not generate duplicate nodes
  devicetree: document the "qemu" and "virtio" vendor prefixes
  devicetree: document ARM bindings for QEMU's Firmware Config interface
  Documentation: of: fix typo in graph bindings
  dma-mapping: fix debug print to display correct dma_pfn_offset
  of: replace Asahi Kasei Corp vendor prefix
  ARM: dt: GIC: Spelling s/specific/specifier/, s/flaggs/flags/
  dt/bindings: arm-boards: Spelling s/pointong/pointing/
  MAINTAINERS: Update DT website and git repository
  MAINTAINERS: drop DT regex matching on of_get_property and of_match_table

9 years agoMerge tag 'imx-fixes-3.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/shawngu...
Olof Johansson [Fri, 23 Jan 2015 22:23:40 +0000 (14:23 -0800)]
Merge tag 'imx-fixes-3.19-2' of git://git./linux/kernel/git/shawnguo/linux into fixes

Merge "ARM: imx: fixes for 3.19, 2nd round" from Shawn Guo:

The i.MX fixes for 3.19, 2nd round:
 - Correct pwm clock assignment in i.MX25 device tree to fix the broken
   pwm support on i.MX25

* tag 'imx-fixes-3.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
  ARM: dts: imx25: Fix PWM "per" clocks

Signed-off-by: Olof Johansson <olof@lixom.net>
9 years agoarm64: dts: add baud rate to Juno stdout-path
Robin Murphy [Thu, 22 Jan 2015 11:21:32 +0000 (11:21 +0000)]
arm64: dts: add baud rate to Juno stdout-path

Without explicit command-line parameters, the Juno UART ends up running
at 57600 baud in the kernel, which is at odds with the 115200 baud used
by the rest of the firmware. Since commit 7914a7c5651a5161 now lets us
fix this by specifying default options in stdout-path, do so.

Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
9 years agoMerge tag 'mvebu-fixes-3.19-4' of git://git.infradead.org/linux-mvebu into fixes
Olof Johansson [Fri, 23 Jan 2015 22:08:13 +0000 (14:08 -0800)]
Merge tag 'mvebu-fixes-3.19-4' of git://git.infradead.org/linux-mvebu into fixes

Merge "mvebu/fixes #3" from Andrew Lunn:

mvebu fixes for 3.19. (Part 4)

bus: mvebu-mbus: fix support of MBus window 13

* tag 'mvebu-fixes-3.19-4' of git://git.infradead.org/linux-mvebu:
  bus: mvebu-mbus: fix support of MBus window 13
  ARM: mvebu: completely disable hardware I/O coherency

Signed-off-by: Olof Johansson <olof@lixom.net>
9 years agoMerge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Linus Torvalds [Fri, 23 Jan 2015 21:58:17 +0000 (09:58 +1200)]
Merge tag 'for-linus' of git://git./virt/kvm/kvm

Pull kvm fixes from Paolo Bonzini:
 "Three small fixes.

  Two for x86 and one avoids that sparse bails out"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  KVM: x86: SYSENTER emulation is broken
  KVM: x86: Fix of previously incomplete fix for CVE-2014-8480
  KVM: fix sparse warning in include/trace/events/kvm.h

9 years agoMerge branch 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm
Linus Torvalds [Fri, 23 Jan 2015 21:57:01 +0000 (09:57 +1200)]
Merge branch 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm

Pull ARM fixes from Russell King:
 "Another round of small ARM fixes.

  restore_user_regs early stack deallocation is buggy in the presence of
  FIQs which switch to SVC mode, and could lead to corrupted registers
  being returned to a user process given an inopportune FIQ event.

  Another bug was spotted in the ARM perf code where it could lose track
  of perf counter overflows, leading to incorrect perf results.

  Lastly, a bug in arm_add_memory() was spotted where the memory sizes
  aren't properly rounded.  As most people pass properly rounded sizes,
  this hasn't been noticed"

* 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm:
  ARM: 8292/1: mm: fix size rounding-down of arm_add_memory() function
  ARM: 8255/1: perf: Prevent wraparound during overflow
  ARM: 8266/1: Remove early stack deallocation from restore_user_regs

9 years agoMerge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Linus Torvalds [Fri, 23 Jan 2015 21:55:13 +0000 (09:55 +1200)]
Merge tag 'arm64-fixes' of git://git./linux/kernel/git/arm64/linux

Pull two arm64 fixes from Will Deacon:
 "Arm64 fixes seem to come in pairs recently.  We've got a fix for
  removing device-tree blobs when doing a make clean and another one
  addressing a missing include, which fixes build failures in -next for
  allmodconfig (spotted by Mark's buildbot).

  Summary from signed tag:

   - fix cleaning of .dtbs following directory restructuring
   - fix allmodconfig build breakage in -next due to missing include"

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  arm64: dump: Fix implicit inclusion of definition for PCI_IOBASE
  arm64: Add dtb files to archclean rule

9 years agoRevert "platform: x86: dell-laptop: Add support for keyboard backlight"
Darren Hart [Wed, 21 Jan 2015 18:36:11 +0000 (10:36 -0800)]
Revert "platform: x86: dell-laptop: Add support for keyboard backlight"

This reverts commit 02b2aaaa57ab41504e8d03a3b2ceeb9440a2c188.

This interface was determined to be flawed and required too invasive a
fix for the RC cycle. This will be revisited in 3.20.

Signed-off-by: Darren Hart <dvhart@linux.intel.com>
9 years agoRevert "Documentation: Add entry for dell-laptop sysfs interface"
Darren Hart [Wed, 21 Jan 2015 18:34:43 +0000 (10:34 -0800)]
Revert "Documentation: Add entry for dell-laptop sysfs interface"

This reverts commit 3161293ba6dfceee9c1efe75185677445def05d4.

This interface was determined to be flawed and required too invasive a
fix for the RC cycle. This will be revisited in 3.20.

Signed-off-by: Darren Hart <dvhart@linux.intel.com>
9 years agodm cache: fix problematic dual use of a single migration count variable
Joe Thornber [Fri, 23 Jan 2015 10:16:16 +0000 (10:16 +0000)]
dm cache: fix problematic dual use of a single migration count variable

Introduce a new variable to count the number of allocated migration
structures.  The existing variable cache->nr_migrations became
overloaded.  It was used to:

 i) track of the number of migrations in flight for the purposes of
    quiescing during suspend.

 ii) to estimate the amount of background IO occuring.

Recent discard changes meant that REQ_DISCARD bios are processed with
a migration.  Discards are not background IO so nr_migrations was not
incremented.  However this could cause quiescing to complete early.

(i) is now handled with a new variable cache->nr_allocated_migrations.
cache->nr_migrations has been renamed cache->nr_io_migrations.
cleanup_migration() is now called free_io_migration(), since it
decrements that variable.

Also, remove the unused cache->next_migration variable that got replaced
with with prealloc_structs a while ago.

Signed-off-by: Joe Thornber <ejt@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Cc: stable@vger.kernel.org
9 years agodm cache: share cache-metadata object across inactive and active DM tables
Joe Thornber [Fri, 23 Jan 2015 10:00:07 +0000 (10:00 +0000)]
dm cache: share cache-metadata object across inactive and active DM tables

If a DM table is reloaded with an inactive table when the device is not
suspended (normal procedure for LVM2), then there will be two dm-bufio
objects that can diverge.  This can lead to a situation where the
inactive table uses bufio to read metadata at the same time the active
table writes metadata -- resulting in the inactive table having stale
metadata buffers once it is promoted to the active table slot.

Fix this by using reference counting and a global list of cache metadata
objects to ensure there is only one metadata object per metadata device.

Signed-off-by: Joe Thornber <ejt@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Cc: stable@vger.kernel.org
9 years agoof/unittest: Overlays with sub-devices tests
Pantelis Antoniou [Fri, 19 Dec 2014 12:34:34 +0000 (14:34 +0200)]
of/unittest: Overlays with sub-devices tests

Introduce selftests for overlays using sub-devices present
in children nodes.

Signed-off-by: Pantelis Antoniou <pantelis.antoniou@konsulko.com>
Signed-off-by: Grant Likely <grant.likely@linaro.org>
9 years agoKVM: x86: SYSENTER emulation is broken
Nadav Amit [Thu, 1 Jan 2015 21:11:11 +0000 (23:11 +0200)]
KVM: x86: SYSENTER emulation is broken

SYSENTER emulation is broken in several ways:
1. It misses the case of 16-bit code segments completely (CVE-2015-0239).
2. MSR_IA32_SYSENTER_CS is checked in 64-bit mode incorrectly (bits 0 and 1 can
   still be set without causing #GP).
3. MSR_IA32_SYSENTER_EIP and MSR_IA32_SYSENTER_ESP are not masked in
   legacy-mode.
4. There is some unneeded code.

Fix it.

Cc: stable@vger.linux.org
Signed-off-by: Nadav Amit <namit@cs.technion.ac.il>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
9 years agoKVM: x86: Fix of previously incomplete fix for CVE-2014-8480
Nadav Amit [Thu, 8 Jan 2015 10:59:03 +0000 (11:59 +0100)]
KVM: x86: Fix of previously incomplete fix for CVE-2014-8480

STR and SLDT with rip-relative operand can cause a host kernel oops.
Mark them as DstMem as well.

Cc: stable@vger.linux.org
Signed-off-by: Nadav Amit <namit@cs.technion.ac.il>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
9 years agoarm64: dump: Fix implicit inclusion of definition for PCI_IOBASE
Mark Brown [Thu, 22 Jan 2015 20:52:10 +0000 (20:52 +0000)]
arm64: dump: Fix implicit inclusion of definition for PCI_IOBASE

Since c9465b4ec37a68425 (arm64: add support to dump the kernel page tables)
allmodconfig has failed to build on arm64 as a result of:

../arch/arm64/mm/dump.c:55:20: error: 'PCI_IOBASE' undeclared here (not in a function)

Fix this by explicitly including io.h to ensure that a definition is
present.

Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>