Граф коммитов

440815 Коммитов

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Lars-Peter Clausen a4e9154c42 ASoC: dapm: Revert "ASoC: dapm: Fix double prefix addition"
This reverts commit bd23c5b661.

The patch claims that the patch is necessary to avoid double prefix addition
when calling snd_soc_dapm_add_route() from snd_soc_dapm_connect_dai_link_widgets().
But snd_soc_dapm_add_route() is called with the card's DAPM context, which does
not have a prefix, which means there is no prefix that could be added a second
time.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-05-12 21:34:43 +01:00
Lars-Peter Clausen c9e065c27f ASoC: dapm: Make sure to always update the DAPM graph in _put_volsw()
When using auto-muted controls it may happen that the register value will not
change when changing a control from enabled to disabled (since the control might
be physically disabled due to the auto-muting). We have to make sure to still
update the DAPM graph and disconnect the mixer input.

Fixes: commit 5729507 ("ASoC: dapm: Implement mixer input auto-disable")
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-05-05 12:31:14 -07:00
Mark Brown 00a41d9fe2 Merge branch 'topic/component' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into asoc-dapm 2014-04-29 09:49:49 -07:00
Lars-Peter Clausen c471fdd1b6 ASoC: dapm: Factor out duplicated code in soc_dapm_stream_event()
In soc_dapm_stream_event() we have the same code twice, once for the codec_dai
and once for the cpu_dai.  This patch factors the duplicated code out into a
separate function. This will make it easier to modify the implementation (since
there is only one place that needs to be updated) and also easier to add support
for more than two DAIs per DAI link.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-04-29 09:40:51 -07:00
Lars-Peter Clausen 907fe36a2c ASoC: Move standard kcontrol helpers to the component level
After moving the IO layer inside ASoC to the component level we can now easily
move the standard control helpers also to the component level. This allows to
reuse the same standard helper control implementations for other components.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-04-22 13:38:21 +01:00
Mark Brown 9f68730dc8 Merge branch 'topic/multicodec' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into asoc-component 2014-04-22 13:38:14 +01:00
Lars-Peter Clausen 111c0cf566 ASoC: Remove ASoC level IO tracing
The ASoC framework is in the process of migrating all IO operations to regmap.
regmap has its own more sophisticated tracing infrastructure for IO operations,
which means that the ASoC level IO tracing becomes redundant, hence this patch
removes them. There are still a handful of ASoC drivers left that do not use
regmap yet, but hopefully the removal of the ASoC IO tracing will be an
additional incentive to switch to regmap.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-04-22 13:24:24 +01:00
Lars-Peter Clausen 23d5442be9 ASoC: dapm: Rename soc_widget_update_bits_locked() to soc_widget_update_bits()
There is no unlocked version of soc_widget_update_bits_locked() and there is no
plan to introduce it in the near future, so drop the _locked suffix.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-04-22 13:24:24 +01:00
Lars-Peter Clausen b0a9f8e06c ASoC: Remove snd_soc_update_bits_locked()
There are no users of snd_soc_update_bits_locked() left and it is identical to
snd_soc_update_bits(). So it can be removed.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-04-22 13:24:24 +01:00
Lars-Peter Clausen e2c330b9b5 ASoC: Move IO abstraction to the component level
We currently have two very similar IO abstractions in ASoC, one for CODECs, the
other for platforms. Moving this to the component level will allow us to unify
those two. It will also enable us to move the standard kcontrol helpers as well
as DAPM support to the component level.

The new component level abstraction layer is primarily build around regmap.
There is a per component pointer for the regmap instance for the underlying
device. There are four new function snd_soc_component_read(),
snd_soc_component_write(), snd_soc_component_update_bits() and
snd_soc_component_update_bits_async(). They have the same signature as their
regmap counter-part and will internally forward the call one-to-one to regmap.
If the component it not using regmap it will fallback to using the custom IO
callbacks. This is done to be able to support drivers that haven't been
converted to regmap yet, but it is expected that this will eventually be removed
in the future once all component drivers have been converted to regmap.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-04-22 13:23:35 +01:00
Mark Brown 2b17ef4071 Merge branches 'topic/sta350', 'topic/core', 'topic/dapm' and 'topic/cache' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into asoc-component 2014-04-22 13:22:52 +01:00
Lars-Peter Clausen ab2874a8fa ASoC: Change return type of snd_soc_write() to int
The CODEC's write callback can return a negative error code, make sure to pass
that on correctly.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-04-21 11:21:25 +01:00
Lars-Peter Clausen 8ab1a06497 ASoC: sta350: Use snd_soc_kcontrol_codec()
In preparation for componentisation of the kcontrol helpers use
snd_soc_kcontrol_codec() instead of snd_kcontrol_chip().

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-04-21 11:20:46 +01:00
Christoph Jaeger b7580cde70 ASoC: core: use PTR_ERR instead of PTR_RET
PTR_RET is deprecated. PTR_ERR_OR_ZERO should be used instead. However,
we already know that IS_ERR is true, and thus PTR_ERR_OR_ZERO would
never yield zero, so we can use PTR_ERR here.

Signed-off-by: Christoph Jaeger <christophjaeger@linux.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-04-18 17:12:35 +01:00
Bard Liao 3477501274 ASoC: dapm: Allow update_bits use 32 bits reg
This patch change reg's type from unsigned short to int.

Signed-off-by: Bard Liao <bardliao@realtek.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-04-18 15:53:22 +01:00
Lars-Peter Clausen 66097ca788 ASoC: Fix snd_soc_kcontrol_platform() return type
This should obviously be snd_soc_platform * and not snd_soc_codec *

Fixes: f6272ff8a5 ("ASoC: Add snd_soc_kcontrol_platform() helper function")
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-04-15 23:53:10 +01:00
Misael Lopez Cruz 02c9c7b91c ASoC: core: Add function for ac97 codec registration
Add codec registration specific function in preparation
for DAI-multicodec support.

No functional change.

Signed-off-by: Misael Lopez Cruz <misael.lopez@ti.com>
[fparent@baylibre.com: Adapt to 3.14+]
Signed-off-by: Fabien Parent <fparent@baylibre.com>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-04-14 20:37:25 +01:00
Misael Lopez Cruz 2436a723f3 ASoC: core: Add helper for DAI widgets linking
Add a helper for DAI widgets linking in preparation for
DAI-multicodec support.

No functional change.

Signed-off-by: Misael Lopez Cruz <misael.lopez@ti.com>
[fparent@baylibre.com: Adapt to 3.14+]
Signed-off-by: Fabien Parent <fparent@baylibre.com>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-04-14 20:37:25 +01:00
Misael Lopez Cruz b0aa88af23 ASoC: core: Add helpers for codec DAI probe & remove
Add helper functions for codec DAI probe and remove in
preparation for DAI-multicodec support.

No functional change.

Signed-off-by: Misael Lopez Cruz <misael.lopez@ti.com>
[fparent@baylibre.com: Adapt to 3.14+]
Signed-off-by: Fabien Parent <fparent@baylibre.com>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-04-14 20:37:25 +01:00
Misael Lopez Cruz 12023a9af8 ASoC: core: Add helpers for codec and codec_dai search
Add dedicated helpers for codec and codec_dai search in preparation
for DAI-multicodec. It will help reducing the extra indentation
that will be introduced by the iteration over multiple codecs.

Previous implementation unnecessarily kept searching for a matching
codec in the remaining register codecs even if it was already found.

Fix that by returning in case of matching.

Signed-off-by: Misael Lopez Cruz <misael.lopez@ti.com>
[fparent@baylibre.com: Adapt to 3.14+]
Signed-off-by: Fabien Parent <fparent@baylibre.com>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-04-14 20:37:25 +01:00
Mark Brown aa0258adf6 Merge branch 'topic/component' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into asoc-core
Conflicts:
	sound/soc/soc-core.c
2014-04-14 17:42:28 +01:00
Sven Brandau 2439ea1f0f ASoC: sta350: Add codec driver
The TI STA350 is an integrated 2.1-channel power amplifier that is
controllable over I2C. This patch adds an ASoC driver for it.

At a glance, this chip is very similar to the STA320 for which a driver
already exists. In details, however, the register maps contain subtle
differences which made a whole new driver easier to write and maintain.

[daniel@zonque.org: cleanups, DT property rework, rebased on asoc-next]
Signed-off-by: Sven Brandau <brandau@gmx.de>
Signed-off-by: Daniel Mack <daniel@zonque.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-04-14 17:28:43 +01:00
Bard Liao 1a39019e93 ASoC: core: Allow snd_soc_update_bits use 32 bits register
Change reg's type from unsigned short to unsigned int. So that we can use
32 bits reg value in snd_soc_update_bits.

Signed-off-by: Bard Liao <bardliao@realtek.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-04-14 17:23:39 +01:00
Nariman Poushin b318ad5036 ASoC: core: Fail codec probe if we fail to add controls
Signed-off-by: Nariman Poushin <nariman@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-04-14 17:23:38 +01:00
Nariman Poushin 261edc7013 ASoC: core: Fail probe if we fail to add dai widgets
Signed-off-by: Nariman Poushin <nariman@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-04-14 17:23:38 +01:00
Lars-Peter Clausen b37f1d123c ASoC: Let snd_soc_platform subclass snd_soc_component
There is an increasing amount of code that is very similar between platforms,
CODECS and other components. Making platforms a component will allow us to
share this code. For now the patch just adds component and component_driver
fields to the platform and platform_driver structs and registers the platform as
a component. Followup patches will be used to consolidate code between the
different types of components.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-04-14 17:22:44 +01:00
Lars-Peter Clausen 98e639fb8a ASoC: Track which components have been registered with snd_soc_register_component()
snd_soc_unregister_component() takes the parent device of the component as a
parameter and then looks up the component based on this. This is a problem if
multiple components are registered for the same parent device. Currently drivers
do not do this, but some drivers register a CPU DAI component and a platform for
the same parent device. This will become a problem once platforms are also made
components. To make sure that snd_soc_unregister_component() will not
accidentally unregister the platform in such a case only consider components
that were registered with snd_soc_register_component(). This is only meant as
short term stopgap solution to be able to continue componentisation. Long term
we'll need something different.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-04-14 17:22:43 +01:00
Lars-Peter Clausen 20a0ec27ea ASoC: Remove IO register modifier callbacks
There are no ASoC drivers left that use them and new drivers are supposed to use
regmap for this.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-04-14 17:22:43 +01:00
Lars-Peter Clausen 96241c8329 ASoC: Move IO functions to soc-io.c
soc-core.c is getting quite crowded. Move all IO related functions that are
still in soc-core.c to soc-io.c

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-04-14 17:22:43 +01:00
Lars-Peter Clausen 6137a5ca32 ASoC: Prepare SOC_SINGLE_XR_SX controls for regmap
SOC_SINGLE_XR_SX controls currently only work with CODECs that set the
'reg_word_size' field in their snd_soc_codec_driver struct. Going forward
support for ASoC level IO will eventually be removed and all drivers will be
converted to regmap. Preparing for the transition this patch adds support for
CODECs using regmap for IO to the SOC_SINGLE_XR_SX control. We already have the
val_bytes field in the CODEC struct which holds the number of bytes per word,
but it is only initialized when regmap is used. Also initialize it for drivers
still using legacy IO and update the SOC_SINGLE_XR_SX handlers to use it.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-04-14 17:22:43 +01:00
Lars-Peter Clausen f6272ff8a5 ASoC: Add snd_soc_kcontrol_platform() helper function
For platform controls snd_kcontrol_chip() currently returns a pointer to the
platform that registered the control. With the upcoming consolidation of
platform and CODEC controls this will change. Prepare for this by introducing
the snd_soc_kcontrol_platform() helper function that will hide the
implementation details of how the platform for a control can be obtained. This
will allow us to change this easily in the future.

The patch also updates all platforms to use this new helper function.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-04-14 17:22:43 +01:00
Lars-Peter Clausen ea53bf77d1 ASoC: Add snd_soc_kcontrol_codec() helper function
For CODEC controls snd_kcontrol_chip() currently returns a pointer to the
CODEC that registered the control. With the upcoming consolidation of
platform and CODEC controls this will change. Prepare for this by introducing
the snd_soc_kcontrol_codec() helper function that will hide the implementation
details of how the CODEC for a control can be obtained. This will allow us to
change this easily in the future.

The patch also updates all CODEC drivers to use the new helper function.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-04-14 17:22:43 +01:00
Xiubo Li 7a34b1c1df ASoC: codec: fix the sparse check warnings.
Some thing Likes:

reproduce: make C=1 CF=-D__CHECK_ENDIAN__

sparse warnings: (new ones prefixed by >>)

>> sound/soc/codecs/wm8997.c:1084:15: sparse: symbol \
'wm8997_get_regmap' was not declared. Should it be static?

Signed-off-by: Xiubo Li <Li.Xiubo@freescale.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-04-14 17:22:20 +01:00
Xiubo Li 964eafb1d5 ASoC: wm8997: Remove the set_cache_io() entirely from ASoC probe.
As we can set the CODEC I/O while snd_soc_register_codec(), so the
calling of set_cache_io() from CODEC ASoC probe could be removed
entirely.

And then we can set the CODEC I/O in the device probe instead of
CODEC ASoC probe as earily as possible.

Signed-off-by: Xiubo Li <Li.Xiubo@freescale.com>
Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-04-14 17:22:20 +01:00
Xiubo Li c0b6f59b70 ASoC: wm8994: Remove the set_cache_io() entirely from ASoC probe.
As we can set the CODEC I/O while snd_soc_register_codec(), so the
calling of set_cache_io() from CODEC ASoC probe could be removed
entirely.

And then we can set the CODEC I/O in the device probe instead of
CODEC ASoC probe as earily as possible.

Signed-off-by: Xiubo Li <Li.Xiubo@freescale.com>
Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-04-14 17:22:20 +01:00
Xiubo Li 4504badea3 ASoC: wm8400: Remove the set_cache_io() entirely from ASoC probe.
As we can set the CODEC I/O while snd_soc_register_codec(), so the
calling of set_cache_io() from CODEC ASoC probe could be removed
entirely.

And then we can set the CODEC I/O in the device probe instead of
CODEC ASoC probe as earily as possible.

Signed-off-by: Xiubo Li <Li.Xiubo@freescale.com>
Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-04-14 17:22:20 +01:00
Xiubo Li aec0eb50e5 ASoC: wm8350: Remove the set_cache_io() entirely from ASoC probe.
As we can set the CODEC I/O while snd_soc_register_codec(), so the
calling of set_cache_io() from CODEC ASoC probe could be removed
entirely.

And then we can set the CODEC I/O in the device probe instead of
CODEC ASoC probe as earily as possible.

Signed-off-by: Xiubo Li <Li.Xiubo@freescale.com>
Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-04-14 17:22:19 +01:00
Xiubo Li 6e4842d30c ASoC: wm5110: Remove the set_cache_io() entirely from ASoC probe.
As we can set the CODEC I/O while snd_soc_register_codec(), so the
calling of set_cache_io() from CODEC ASoC probe could be removed
entirely.

And then we can set the CODEC I/O in the device probe instead of
CODEC ASoC probe as earily as possible.

Signed-off-by: Xiubo Li <Li.Xiubo@freescale.com>
Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-04-14 17:22:19 +01:00
Xiubo Li c8b02acd45 ASoC: wm5102: Remove the set_cache_io() entirely from ASoC probe.
As we can set the CODEC I/O while snd_soc_register_codec(), so the
calling of set_cache_io() from CODEC ASoC probe could be removed
entirely.

And then we can set the CODEC I/O in the device probe instead of
CODEC ASoC probe as earily as possible.

Signed-off-by: Xiubo Li <Li.Xiubo@freescale.com>
Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-04-14 17:22:19 +01:00
Xiubo Li 83905ef3cb ASoC: si476x: Remove the set_cache_io() entirely from ASoC probe.
As we can set the CODEC I/O while snd_soc_register_codec(), so the
calling of set_cache_io() from CODEC ASoC probe could be removed
entirely.

And then we can set the CODEC I/O in the device probe instead of
CODEC ASoC probe as earily as possible.

Signed-off-by: Xiubo Li <Li.Xiubo@freescale.com>
Acked-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-04-14 17:22:19 +01:00
Xiubo Li d957f1651e ASoC: mc13783: Remove the set_cache_io() entirely from ASoC probe.
As we can set the CODEC I/O while snd_soc_register_codec(), so the
calling of set_cache_io() from CODEC ASoC probe could be removed
entirely.

And then we can set the CODEC I/O in the device probe instead of
CODEC ASoC probe as earily as possible.

Signed-off-by: Xiubo Li <Li.Xiubo@freescale.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-04-14 17:22:19 +01:00
Xiubo Li 49101a25ac ASoC: cq93vc: Remove the set_cache_io() entirely from ASoC probe.
As we can set the CODEC I/O while snd_soc_register_codec(), so the
calling of set_cache_io() from CODEC ASoC probe could be removed
entirely.

And then we can set the CODEC I/O in the device probe instead of
CODEC ASoC probe as earily as possible.

Signed-off-by: Xiubo Li <Li.Xiubo@freescale.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-04-14 17:22:19 +01:00
Xiubo Li bbc0bd7fd3 ASoC: 88pm860x: Remove the set_cache_io() entirely from ASoC probe.
As we can set the CODEC I/O while snd_soc_register_codec(), so the
calling of set_cache_io() from CODEC ASoC probe could be removed
entirely.

And then we can set the CODEC I/O in the device probe instead of
CODEC ASoC probe as earily as possible.

Signed-off-by: Xiubo Li <Li.Xiubo@freescale.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-04-14 17:22:19 +01:00
Xiubo Li a39f75f790 ASoC: core: Move the default regmap I/O setting to snd_soc_register_codec()
Add the default regmap I/O setting to snd_soc_register_codec() while
the CODEC is initialising, which will be called by CODEC driver device
probe(), and then we can make XXX_set_cache_io() go away entirely from each
CODEC ASoC probe.

Signed-off-by: Xiubo Li <Li.Xiubo@freescale.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-04-14 17:22:18 +01:00
Linus Torvalds c9eaa447e7 Linux 3.15-rc1 2014-04-13 14:18:35 -07:00
Geert Uytterhoeven f7c1d07420 mm: Initialize error in shmem_file_aio_read()
Some versions of gcc even warn about it:

  mm/shmem.c: In function ‘shmem_file_aio_read’:
  mm/shmem.c:1414: warning: ‘error’ may be used uninitialized in this function

If the loop is aborted during the first iteration by one of the two
first break statements, error will be uninitialized.

Introduced by commit 6e58e79db8 ("introduce copy_page_to_iter, kill
loop over iovec in generic_file_aio_read()").

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-04-13 14:10:26 -07:00
Geert Uytterhoeven e686bd8dc5 cifs: Use min_t() when comparing "size_t" and "unsigned long"
On 32 bit, size_t is "unsigned int", not "unsigned long", causing the
following warning when comparing with PAGE_SIZE, which is always "unsigned
long":

  fs/cifs/file.c: In function ‘cifs_readdata_to_iov’:
  fs/cifs/file.c:2757: warning: comparison of distinct pointer types lacks a cast

Introduced by commit 7f25bba819 ("cifs_iovec_read: keep iov_iter
between the calls of cifs_readdata_to_iov()"), which changed the
signedness of "remaining" and the code from min_t() to min().

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-04-13 14:10:26 -07:00
Linus Torvalds bf3a340738 Merge branch 'slab/next' of git://git.kernel.org/pub/scm/linux/kernel/git/penberg/linux
Pull slab changes from Pekka Enberg:
 "The biggest change is byte-sized freelist indices which reduces slab
  freelist memory usage:

    https://lkml.org/lkml/2013/12/2/64"

* 'slab/next' of git://git.kernel.org/pub/scm/linux/kernel/git/penberg/linux:
  mm: slab/slub: use page->list consistently instead of page->lru
  mm/slab.c: cleanup outdated comments and unify variables naming
  slab: fix wrongly used macro
  slub: fix high order page allocation problem with __GFP_NOFAIL
  slab: Make allocations with GFP_ZERO slightly more efficient
  slab: make more slab management structure off the slab
  slab: introduce byte sized index for the freelist of a slab
  slab: restrict the number of objects in a slab
  slab: introduce helper functions to get/set free object
  slab: factor out calculate nr objects in cache_estimate
2014-04-13 13:28:13 -07:00
Linus Torvalds 321d03c867 Merge branch 'misc' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild
Pull misc kbuild changes from Michal Marek:
 "Here is the non-critical part of kbuild:
   - One bogus coccinelle check removed, one check fixed not to suggest
     the obsolete PTR_RET macro
   - scripts/tags.sh does not index the generated *.mod.c files
   - new objdiff tool to list differences between two versions of an
     object file
   - A fix for scripts/bootgraph.pl"

* 'misc' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild:
  scripts/coccinelle: Use PTR_ERR_OR_ZERO
  scripts/bootgraph.pl: Add graphic header
  scripts: objdiff: detect object code changes between two commits
  Coccicheck: Remove memcpy to struct assignment test
  scripts/tags.sh: Ignore *.mod.c
2014-04-12 18:22:27 -07:00
Mikulas Patocka fd1232b214 sym53c8xx_2: Set DID_REQUEUE return code when aborting squeue
This patch fixes I/O errors with the sym53c8xx_2 driver when the disk
returns QUEUE FULL status.

When the controller encounters an error (including QUEUE FULL or BUSY
status), it aborts all not yet submitted requests in the function
sym_dequeue_from_squeue.

This function aborts them with DID_SOFT_ERROR.

If the disk has full tag queue, the request that caused the overflow is
aborted with QUEUE FULL status (and the scsi midlayer properly retries
it until it is accepted by the disk), but the sym53c8xx_2 driver aborts
the following requests with DID_SOFT_ERROR --- for them, the midlayer
does just a few retries and then signals the error up to sd.

The result is that disk returning QUEUE FULL causes request failures.

The error was reproduced on 53c895 with COMPAQ BD03685A24 disk
(rebranded ST336607LC) with command queue 48 or 64 tags.  The disk has
64 tags, but under some access patterns it return QUEUE FULL when there
are less than 64 pending tags.  The SCSI specification allows returning
QUEUE FULL anytime and it is up to the host to retry.

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Cc: Matthew Wilcox <matthew@wil.cx>
Cc: James Bottomley <JBottomley@Parallels.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-04-12 18:02:16 -07:00