Input: cy8ctmg110_ts - use C99-style structure initializators

Convert the struct i2c_msg initialization to C99 format. This makes
maintaining and editing the code simpler. Also helps once other fields
like transferred are added in future.

Thanks to Julia Lawall <julia.lawall@lip6.fr>  for automating the
conversion.

Signed-off-by: Shubhrajyoti D <shubhrajyoti@ti.com>
Acked-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Input: as5011 - use C99-style structure initializators

Convert the struct i2c_msg initialization to C99 format. This makes
maintaining and editing the code simpler. Also helps once other fields
like transferred are added in future.

Thanks to Julia Lawall <julia.lawall@lip6.fr> for automating the
conversion.

Signed-off-by: Shubhrajyoti D <shubhrajyoti@ti.com>
Acked-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Input: wm831x-ts - remove unneeded clearing of driver data

This is unneeded, only a bound driver can use driver data and a driver
relying on the state prior to probe() is buggy.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Input: wm831x-ts - convert to devm_kzalloc()

Saves a little code and eliminates the possibility of introducing some
leaks.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Input: wm831x-on - convert to devm_kzalloc()

Saves a small amount of code and reduces the potential for leaks.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Input: mms114 - add device tree bindings

Add device tree bindings for mms114 touchscreen.

[Dmitry Torokhov: added #ifdef CONFIG_OF guards]

Signed-off-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
osduld: Add osdname & systemid sysfs at scsi_osd class

This patch adds the support for following two read-only sysfs attributes
to scsi_osd class members : osdname & systemid

These attributes will show up as below in sysfs class hierarchy:
/sys/class/scsi_osd/osdX/osdname
/sys/class/scsi_osd/osdX/systemid

The osdname & systemid are OSD device attributes which uniquely
identify a device on the network, while it's IP and certainly
it's /dev/osdX device path might change.
Userspace utilities (e.g. mkfs.exofs) can parse these attributes to
identify the correct OSD in safer and faster way.

(Today osd apps open each device in the system and send a
 attributes query for these, in order to access the user
 requested device)

Signed-off-by: Sachin Bhamare <sbhamare@panasas.com>
Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Input: i8042-io - fix up region handling on MIPS

i8042_platform_init() skips reguest_region() on MIPS, but in
i8042_platform_exit() release_region() is still called. Fix this by
reserving the region also on MIPS.

The patch eliminates the following error message seen on MIPS:

[    2.112000] Trying to free nonexistent resource <0000000000000060-000000000000006f>

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Input: edt-ft5x06 - convert to use simple_open()

This removes an open coded simple_open() function and
replaces file operations references to the function
with simple_open() instead.

dpatch engine is used to auto generate this patch.
(https://github.com/weiyj/dpatch)

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
slub: remove one code path and reduce lock contention in __slab_free()

When we try to free object, there is some of case that we need
to take a node lock. This is the necessary step for preventing a race.
After taking a lock, then we try to cmpxchg_double_slab().
But, there is a possible scenario that cmpxchg_double_slab() is failed
with taking a lock. Following example explains it.

CPU A               CPU B
need lock
...                 need lock
...                 lock!!
lock..but spin      free success
spin...             unlock
lock!!
free fail

In this case, retry with taking a lock is occured in CPU A.
I think that in this case for CPU A,
"release a lock first, and re-take a lock if necessary" is preferable way.

There are two reasons for this.

First, this makes __slab_free()'s logic somehow simple.
With this patch, 'was_frozen = 1' is "always" handled without taking a lock.
So we can remove one code path.

Second, it may reduce lock contention.
When we do retrying, status of slab is already changed,
so we don't need a lock anymore in almost every case.
"release a lock first, and re-take a lock if necessary" policy is
helpful to this.

Signed-off-by: Joonsoo Kim <js1304@gmail.com>
Acked-by: Christoph Lameter <cl@linux.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
Input: serio - add ARC PS/2 driver

This adds support for the PS/2 block that is used in various ARC FPGA
platforms.

Signed-off-by: Mischa Jonker <mischa.jonker@synopsys.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
mm/sl[au]b: Move slabinfo processing to slab_common.c

This patch moves all the common machinery to slabinfo processing
to slab_common.c. We can do better by noticing that the output is
heavily common, and having the allocators to just provide finished
information about this. But after this first step, this can be done
easier.

Signed-off-by: Glauber Costa <glommer@parallels.com>
Acked-by: Christoph Lameter <cl@linux.com>
CC: David Rientjes <rientjes@google.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
mm/sl[au]b: Move print_slabinfo_header to slab_common.c

The header format is highly similar between slab and slub. The main
difference lays in the fact that slab may optionally have statistics
added here in case of CONFIG_SLAB_DEBUG, while the slub will stick them
somewhere else.

By making sure that information conditionally lives inside a
globally-visible CONFIG_DEBUG_SLAB switch, we can move the header
printing to a common location.

Signed-off-by: Glauber Costa <glommer@parallels.com>
Acked-by: Christoph Lameter <cl@linux.com>
CC: David Rientjes <rientjes@google.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
sl[au]b: Process slabinfo_show in common code

With all the infrastructure in place, we can now have slabinfo_show
done from slab_common.c. A cache-specific function is called to grab
information about the cache itself, since that is still heavily
dependent on the implementation. But with the values produced by it, all
the printing and handling is done from common code.

Signed-off-by: Glauber Costa <glommer@parallels.com>
CC: Christoph Lameter <cl@linux.com>
CC: David Rientjes <rientjes@google.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
Merge branch 'slab/procfs' into slab/next
slub: Commonize slab_cache field in struct page

Right now, slab and slub have fields in struct page to derive which
cache a page belongs to, but they do it slightly differently.

slab uses a field called slab_cache, that lives in the third double
word. slub, uses a field called "slab", living outside of the
doublewords area.

Ideally, we could use the same field for this. Since slub heavily makes
use of the doubleword region, there isn't really much room to move
slub's slab_cache field around. Since slab does not have such strict
placement restrictions, we can move it outside the doubleword area.

The naming used by slab, "slab_cache", is less confusing, and it is
preferred over slub's generic "slab".

Signed-off-by: Glauber Costa <glommer@parallels.com>
Acked-by: Christoph Lameter <cl@linux.com>
CC: David Rientjes <rientjes@google.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
Input: arc_ps2 - switch to using managed resources

Using managed resources simplifies error handling and shrinks
size of arc_ps2_remove().

Tested-by: Mischa Jonker <mischa.jonker@synopsys.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Input: fix sparse warning in multitouch code

This fixes the following sparse warning:
drivers/input/input-mt.c:193:18: warning: Using plain integer as NULL pointer

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Input: fix sparse warning in __input_release_device()

This fixes the following warning:
drivers/input/input.c:538:23: error: incompatible types in comparison expression (different address spaces)

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Input: remove CONFIG_EXPERIMENTAL from keyboard drivers

This config item has not carried much meaning for a while now and is
almost always enabled by default. As agreed during the Linux kernel
summit, remove it.

Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>