platform/adaptation/renesas_rcar/renesas_kernel.git
11 years agostaging/rtl8187se: Fix include file issue in ieee80211/ieee80211_module.c
YAMANE Toshiaki [Tue, 20 Nov 2012 12:11:40 +0000 (21:11 +0900)]
staging/rtl8187se: Fix include file issue in ieee80211/ieee80211_module.c

The following warning fixed.
- WARNING: Use #include <linux/uaccess.h> instead of <asm/uaccess.h>

Signed-off-by: YAMANE Toshiaki <yamanetoshi@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agostaging/rtl8187se: Fix spacing coding style in ieee80211/ieee80211_crypt.h
YAMANE Toshiaki [Tue, 20 Nov 2012 12:11:25 +0000 (21:11 +0900)]
staging/rtl8187se: Fix spacing coding style in ieee80211/ieee80211_crypt.h

The following error fixed.
-ERROR: "foo * bar" should be "foo *bar"

Signed-off-by: YAMANE Toshiaki <yamanetoshi@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agostaging/rtl8187se: Fix spacing coding style in ieee80211/ieee80211_crypt.c
YAMANE Toshiaki [Tue, 20 Nov 2012 12:11:12 +0000 (21:11 +0900)]
staging/rtl8187se: Fix spacing coding style in ieee80211/ieee80211_crypt.c

The following errors fixed.
-ERROR: "foo * bar" should be "foo *bar"

Signed-off-by: YAMANE Toshiaki <yamanetoshi@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agostaging/rtl8187se: Use pr_ printks in ieee80211/ieee80211_crypt.c
YAMANE Toshiaki [Tue, 20 Nov 2012 12:10:57 +0000 (21:10 +0900)]
staging/rtl8187se: Use pr_ printks in ieee80211/ieee80211_crypt.c

The following warnings fixed.
- WARNING: Prefer netdev_dbg(netdev, ... then dev_dbg(dev, ... then pr_debug(...  to printk(KERN_DEBUG ...

and add pr_fmt.

Signed-off-by: YAMANE Toshiaki <yamanetoshi@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agostaging/rtl8187se: Fix include file issue in ieee80211/ieee80211_crypt.c
YAMANE Toshiaki [Tue, 20 Nov 2012 12:10:42 +0000 (21:10 +0900)]
staging/rtl8187se: Fix include file issue in ieee80211/ieee80211_crypt.c

The following warnings fixed.
- WARNING: Use #include <linux/string.h> instead of <asm/string.h>
- WARNING: Use #include <linux/errno.h> instead of <asm/errno.h>

Signed-off-by: YAMANE Toshiaki <yamanetoshi@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agostaging/rtl8187se: Fix spacing coding style in r8180_dm.h
YAMANE Toshiaki [Tue, 20 Nov 2012 12:09:55 +0000 (21:09 +0900)]
staging/rtl8187se: Fix spacing coding style in r8180_dm.h

The following errors fixed.
-ERROR: "foo * bar" should be "foo *bar"

Signed-off-by: YAMANE Toshiaki <yamanetoshi@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agostaging: et131x: Removing final checkpatch errors, all line >80 chars
Mark Einon [Fri, 16 Nov 2012 10:47:42 +0000 (10:47 +0000)]
staging: et131x: Removing final checkpatch errors, all line >80 chars

Trivial Whitespace changes only. No checkpatch errors exist in et131x
after this change.

Signed-off-by: Mark Einon <mark.einon@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agostaging: et131x: Replace kmem_cache use with plain kmalloc/kfree
Mark Einon [Fri, 16 Nov 2012 10:47:41 +0000 (10:47 +0000)]
staging: et131x: Replace kmem_cache use with plain kmalloc/kfree

The use of a kmem_cache was noted as being unusual in the TODO. Replace
the kmem_cache with kmalloc/kfree so that the code is less suprising.

Also tidy up the mess that was the et131x_init_recv() out of memory
error path.

Signed-off-by: Mark Einon <mark.einon@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agostaging: et131x: Remove incorrect comments regarding alignment
Mark Einon [Fri, 16 Nov 2012 10:47:40 +0000 (10:47 +0000)]
staging: et131x: Remove incorrect comments regarding alignment

A previous change removed code that aligned memory returned from
dma_alloc_coherent() to a 4k boundary, which was not necessary.

Some comments regarding this alignment still exist, so remove them
as they no longer apply.

Signed-off-by: Mark Einon <mark.einon@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agostaging: et131x: Reduce indenting in et131x_rx_dma_memory_free()
Mark Einon [Fri, 16 Nov 2012 10:47:39 +0000 (10:47 +0000)]
staging: et131x: Reduce indenting in et131x_rx_dma_memory_free()

This change negates an 'if' statement, allowing a large block of code
to be un-indented, making the code more readable.

Signed-off-by: Mark Einon <mark.einon@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agostaging: et131x: Remove alignment offset padding on DMA buffer allocation/free
Mark Einon [Fri, 16 Nov 2012 10:47:38 +0000 (10:47 +0000)]
staging: et131x: Remove alignment offset padding on DMA buffer allocation/free

This padding was used to align buffers to a 4k boundary when returned
from dma_alloc_coherent(). As the buffers are already 4k aligned, and
the alignment no longer performed, the padding is not needed.

Signed-off-by: Mark Einon <mark.einon@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agostaging: et131x: Refactor et131x_isr() to remove indenting
Mark Einon [Fri, 16 Nov 2012 10:47:37 +0000 (10:47 +0000)]
staging: et131x: Refactor et131x_isr() to remove indenting

By negating a 'status' variable check in et131x_isr(), we can remove
the indenting of a large block of code, increasing the readability.

This patch does exactly that.

Signed-off-by: Mark Einon <mark.einon@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agostaging: et131x: remove use of __devexit_p
Bill Pemberton [Mon, 19 Nov 2012 18:20:50 +0000 (13:20 -0500)]
staging: et131x: remove use of __devexit_p

CONFIG_HOTPLUG is going away as an option so __devexit_p is no longer
needed.

Signed-off-by: Bill Pemberton <wfp5p@virginia.edu>
Cc: devel@driverdev.osuosl.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agostaging: et131x: remove use of __devinit
Bill Pemberton [Mon, 19 Nov 2012 18:22:12 +0000 (13:22 -0500)]
staging: et131x: remove use of __devinit

CONFIG_HOTPLUG is going away as an option so __devinit is no longer
needed.

Signed-off-by: Bill Pemberton <wfp5p@virginia.edu>
Acked-by: Mark Einon <mark.einon@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agostaging: et131x: remove use of __devexit
Bill Pemberton [Mon, 19 Nov 2012 18:26:57 +0000 (13:26 -0500)]
staging: et131x: remove use of __devexit

CONFIG_HOTPLUG is going away as an option so __devexit is no
longer needed.

Signed-off-by: Bill Pemberton <wfp5p@virginia.edu>
Acked-by: Mark Einon <mark.einon@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agostaging: wlags49_h2: remove use of __devexit
Bill Pemberton [Mon, 19 Nov 2012 18:26:54 +0000 (13:26 -0500)]
staging: wlags49_h2: remove use of __devexit

CONFIG_HOTPLUG is going away as an option so __devexit is no
longer needed.

Signed-off-by: Bill Pemberton <wfp5p@virginia.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agostaging: wlags49_h2: remove use of __devinitdata
Bill Pemberton [Mon, 19 Nov 2012 18:24:47 +0000 (13:24 -0500)]
staging: wlags49_h2: remove use of __devinitdata

CONFIG_HOTPLUG is going away as an option so __devinitdata is no
longer needed.

Signed-off-by: Bill Pemberton <wfp5p@virginia.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agostaging: wlags49_h2: remove use of __devinit
Bill Pemberton [Mon, 19 Nov 2012 18:21:53 +0000 (13:21 -0500)]
staging: wlags49_h2: remove use of __devinit

CONFIG_HOTPLUG is going away as an option so __devinit is no longer
needed.

Signed-off-by: Bill Pemberton <wfp5p@virginia.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agostaging: wlags49_h2: remove use of __devexit_p
Bill Pemberton [Mon, 19 Nov 2012 18:19:34 +0000 (13:19 -0500)]
staging: wlags49_h2: remove use of __devexit_p

CONFIG_HOTPLUG is going away as an option so __devexit_p is no longer
needed, remove it.

This also changes the syntax for the initialization of the wl_driver
struct to match convention.

Signed-off-by: Bill Pemberton <wfp5p@virginia.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agostaging: wlags49_h2: ap_h2.c: fixes spaces-before-tabs problems
Johan Meiring [Tue, 20 Nov 2012 14:44:59 +0000 (16:44 +0200)]
staging: wlags49_h2: ap_h2.c: fixes spaces-before-tabs problems

This commit sorts out a few instances of spaces before tabs, as
reported by the checkpatch.pl tool.

Signed-off-by: Johan Meiring <johanmeiring@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agostaging: wlags49_h2: wl_if.h: gets rid of C99 // comments
Johan Meiring [Tue, 20 Nov 2012 14:44:58 +0000 (16:44 +0200)]
staging: wlags49_h2: wl_if.h: gets rid of C99 // comments

This commit converts all C99 // comments to standard /* */ comments

Signed-off-by: Johan Meiring <johanmeiring@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agostaging: wlags49_h2: wl_if.h: fixes brace placement
Johan Meiring [Tue, 20 Nov 2012 14:44:57 +0000 (16:44 +0200)]
staging: wlags49_h2: wl_if.h: fixes brace placement

This commit fixes incorrect brace placement, as reported by the
checkpatch.pl tool.

Signed-off-by: Johan Meiring <johanmeiring@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agostaging: wlags49_h2: wl_if.h: fixes 80 char line length issues
Johan Meiring [Tue, 20 Nov 2012 14:44:56 +0000 (16:44 +0200)]
staging: wlags49_h2: wl_if.h: fixes 80 char line length issues

This commit sorts out 80+ char line length issues that were reported
by the checkpatch.pl tool.

Signed-off-by: Johan Meiring <johanmeiring@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agostaging: wlags49_h2: wl_if.h: fixes spaces-before-tabs issue
Johan Meiring [Tue, 20 Nov 2012 14:44:55 +0000 (16:44 +0200)]
staging: wlags49_h2: wl_if.h: fixes spaces-before-tabs issue

This commit fixes a spaces-before-tabs problem that was reported by
the checkpatch.pl tool.

Signed-off-by: Johan Meiring <johanmeiring@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agostaging: wlags49_h2: wl_if.h: fixes tab indentation
Johan Meiring [Tue, 20 Nov 2012 14:44:54 +0000 (16:44 +0200)]
staging: wlags49_h2: wl_if.h: fixes tab indentation

This commit sorts out the tab & space indentation problems that were
reported by the checkpatch.pl tool.

Signed-off-by: Johan Meiring <johanmeiring@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agostaging: wlags49_h2: wl_if.h: fixes macro styling issues
Johan Meiring [Tue, 20 Nov 2012 14:44:10 +0000 (16:44 +0200)]
staging: wlags49_h2: wl_if.h: fixes macro styling issues

This commit sorts out macro styling issues that were indicated by
the checkpatch.pl script,

Signed-off-by: Johan Meiring <johanmeiring@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agostaging: ozwpan: Remove redundant null check before kfree in ozhcd.c
Sachin Kamat [Tue, 20 Nov 2012 11:40:10 +0000 (17:10 +0530)]
staging: ozwpan: Remove redundant null check before kfree in ozhcd.c

kfree on NULL pointer is a no-op.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Rupesh Gujare <rgujare@ozmodevices.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agostaging: ozwpan: Remove redundant null check before kfree in ozproto.c
Sachin Kamat [Tue, 20 Nov 2012 11:40:09 +0000 (17:10 +0530)]
staging: ozwpan: Remove redundant null check before kfree in ozproto.c

kfree on NULL pointer is a no-op.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Rupesh Gujare <rgujare@ozmodevices.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agostaging: ozwpan: Remove redundant null check before kfree in ozpd.c
Sachin Kamat [Tue, 20 Nov 2012 11:40:08 +0000 (17:10 +0530)]
staging: ozwpan: Remove redundant null check before kfree in ozpd.c

kfree on NULL pointer is a no-op.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Rupesh Gujare <rgujare@ozmodevices.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agostaging: ozwpan: Include oz_events_clear() conditionally
Sachin Kamat [Tue, 20 Nov 2012 08:56:58 +0000 (14:26 +0530)]
staging: ozwpan: Include oz_events_clear() conditionally

oz_events_clear() is referenced only when CONFIG_DEBUG_FS is defined.
Move the definition too under this flag.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Acked-by: Rupesh Gujare <rgujare@ozmodevices.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoMerge tag 'iio-for-3.8e' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio...
Greg Kroah-Hartman [Wed, 21 Nov 2012 20:32:57 +0000 (12:32 -0800)]
Merge tag 'iio-for-3.8e' of git://git./linux/kernel/git/jic23/iio into staging-next

From Jonathan:

  "Fifth round of new IIO drivers, cleanups and fixes for the 3.8 cycle.

  Here we have a number of minor fixes.
  * a quirk for the hid sensor driver should be a boolean option.
  * return an error for a failed memdup in the hid sensor driver.
  * Fix a return value in adt7410.
  * A double free in the IIO event infrastructure.
  * Disabling interrupts in tsl2563 was wrong (never been correct!)
  * Incorrect signature for the iio_buffer_register stub
  * Incorrect return for isl29018 write_raw callback.
  * A number of minor fixes as part of the various rework series.

  New drivers and major rework.
  * Introduce and use extensively an adis library for numerous spi
    Analog Devices mems sensors.  This then moves out of staging.
  * Lots of new stuff then added to this library to support newer
    sensors.
  * New drivers for ADIS16136 and ADIS16480 and similar.
  * Core support for barometric pressure sensors.
  * ad7298 cleanup and move out of staging.

  The bulk of this is from Lars-Peter Clausen.  He's been rather
  busy!"

11 years agoiio:adc:ad7298 make the tx and rx buffers __be16
Jonathan Cameron [Wed, 21 Nov 2012 18:24:26 +0000 (18:24 +0000)]
iio:adc:ad7298 make the tx and rx buffers __be16

These buffers are a little interesting in that their
content may have variable endianness, but all but one
element will definitely be big endian.

Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
11 years agoiio:imu: Add support for the ADIS16480 and similar IMUs
Lars-Peter Clausen [Tue, 20 Nov 2012 13:36:00 +0000 (13:36 +0000)]
iio:imu: Add support for the ADIS16480 and similar IMUs

This patch adds support for the ADIS16375, ADIS16480, ADIS16485, ADIS16488 6
degree to 10 degree of freedom IMUs.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
11 years agoiio: Factor out fixed point number parsing into its own function
Lars-Peter Clausen [Tue, 20 Nov 2012 13:36:00 +0000 (13:36 +0000)]
iio: Factor out fixed point number parsing into its own function

Factor out the code for parsing fixed point numbers into its own function and
make this function globally available. This allows us to reuse the code to parse
fixed point numbers in individual IIO drivers.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
11 years agoiio: Add pressure channel type
Lars-Peter Clausen [Tue, 20 Nov 2012 13:36:00 +0000 (13:36 +0000)]
iio: Add pressure channel type

This patch adds support for a new IIO channel type for pressure measurements.
This can for example be used for barometric pressure sensors.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
11 years agoiio:imu:adis: Add paging support
Lars-Peter Clausen [Tue, 20 Nov 2012 13:36:00 +0000 (13:36 +0000)]
iio:imu:adis: Add paging support

Some of the newer generation devices from the ADIS16XXX series have more
registers than what can be supported with the current register addressing
scheme. These devices implement register paging to support a larger register
range. Each page is 128 registers large and the currently active page can be
selected via register 0x00 in each page. This patch implements transparent
paging inside the common adis library. The register read/write interface stays
the same and when a register is accessed the library automatically switches to
the correct page if it is not already selected. The page number is encoded in
the upper bits of the register number, e.g. register 0x5 of page 1 is 0x85.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
11 years agoiio:gyro: Add support for the ADIS16136 gyroscope
Lars-Peter Clausen [Tue, 20 Nov 2012 13:36:00 +0000 (13:36 +0000)]
iio:gyro: Add support for the ADIS16136 gyroscope

This patch adds support for the ADIS16133, ADIS16135, ADIS16136 single channel
gyroscopes. The main difference between them is the sensor precision.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
11 years agoiio:imu:adis: Add support for 32bit registers
Lars-Peter Clausen [Tue, 20 Nov 2012 13:36:00 +0000 (13:36 +0000)]
iio:imu:adis: Add support for 32bit registers

Some of the newer generation devices from the ADIS16XXX family have 32bit wide
register which spans two 16bit wide registers. This patch adds support for
reading and writing a 32bit wide register.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
11 years agoiio:imu:adis: Add debugfs register access support
Lars-Peter Clausen [Tue, 20 Nov 2012 13:36:00 +0000 (13:36 +0000)]
iio:imu:adis: Add debugfs register access support

Provide a IIO debugfs register access function for the ADIS library. This
function can be used by individual drivers to allow raw register access via
debugfs.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
11 years agostaging:iio: Move the ad7298 driver out of staging
Lars-Peter Clausen [Sat, 17 Nov 2012 11:42:59 +0000 (11:42 +0000)]
staging:iio: Move the ad7298 driver out of staging

The driver does not expose any custom API to userspace and none of the standard
static code checker tools report any issues, so move it out of staging.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
11 years agostaging:iio:ad7298: Squash everything into one file
Lars-Peter Clausen [Thu, 15 Nov 2012 13:15:00 +0000 (13:15 +0000)]
staging:iio:ad7298: Squash everything into one file

The recent cleanups have decimated the drivers code size by quite a bit. It is
only a few hundred lines in total now. Putting everything into one file also
allows to reduce the code size a bit more by removing a few lines of boilerplate
code. The only functional change made by this patch is that we now always
include buffer support, instead of making it optional. This is more consistent
with what we do for other drivers.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
11 years agostaging:iio:ad7298: Fix temperature scale and offset
Lars-Peter Clausen [Thu, 15 Nov 2012 13:15:00 +0000 (13:15 +0000)]
staging:iio:ad7298: Fix temperature scale and offset

The temperature scale and offset depend on the reference voltage, the current
formula used in the driver assumes a 2.5V reference. This patch modifies the
code to report the unprocessed value for the temperature channel "raw" property
and to provide proper "scale" and "offset" properties which depend on the
selected reference voltage.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
11 years agostaging:iio:ad7298: Rework regulator handling
Lars-Peter Clausen [Thu, 15 Nov 2012 13:15:00 +0000 (13:15 +0000)]
staging:iio:ad7298: Rework regulator handling

Rework the regulator handling of the driver to match more closely what we do in
other drivers. Make the regulator non-optional if a external reference is used.
Also dispose the option of specifying the reference voltage via platform data.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
11 years agostaging:iio:ad7298: Do not perform endianness conversion in buffered mode
Lars-Peter Clausen [Thu, 15 Nov 2012 13:15:00 +0000 (13:15 +0000)]
staging:iio:ad7298: Do not perform endianness conversion in buffered mode

For buffered mode we do not want to perform endianness conversion in the kernel,
but rather offload it to user space, since it is not always required to do a
conversion at all. It also greatly simplifies the kernel code since no
post-processing has to be done and may allow future optimizations like streaming
data directly to a storage device or over the network via DMA.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
11 years agostaging:iio: Move adis library out of staging
Lars-Peter Clausen [Tue, 13 Nov 2012 13:28:00 +0000 (13:28 +0000)]
staging:iio: Move adis library out of staging

Now that the adis library no longer depends on the sw_ring buffer implementation
we can move it out of staging.

While we are at it also sort the entries in the iio Kconfig and Makefile to be
in alphabetical order.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
11 years agostaging:iio:adis: Preallocate transfer message
Lars-Peter Clausen [Tue, 13 Nov 2012 13:28:00 +0000 (13:28 +0000)]
staging:iio:adis: Preallocate transfer message

Currently the driver reads out all sample registers of the device and throws
away those which it does not need. Furthermore the SPI message is constructed
each time the trigger handler is run, although it will be the same each time.
This patch preallocates and pre-constructs the SPI message in the
"update_scan_mode" callback. Only those register which are actually selected for
sampling are included in the message. The patch also gets rid of the conversion
of the sample data from big endian to the native endianness and instead marks
the channel as big endian in its scan type. This allows to directly push the
SPI transfer buffer to the IIO buffer without the need to post-process it.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
11 years agostaging:iio:adis_lib: Use triggered buffer setup helper function
Lars-Peter Clausen [Tue, 13 Nov 2012 13:28:00 +0000 (13:28 +0000)]
staging:iio:adis_lib: Use triggered buffer setup helper function

Use the triggered buffer helper functions to setup and tear down the buffer for
the adis library instead of doing this manually. This also means that we switch
away from the deprecated sw_ring buffer and use the kfifo buffer now instead.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
11 years agostaging:iio:adis16260: Use adis library
Lars-Peter Clausen [Tue, 13 Nov 2012 13:28:00 +0000 (13:28 +0000)]
staging:iio:adis16260: Use adis library

Use the new adis library for the adis16260 driver. This allows us to completely
scrap the adis16260 buffer and trigger code and about half of the core driver
code.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
11 years agostaging:iio:adis16240: Use adis library
Lars-Peter Clausen [Tue, 13 Nov 2012 13:28:00 +0000 (13:28 +0000)]
staging:iio:adis16240: Use adis library

Use the new adis library for the adis16240 driver. This allows us to completely
scrap the adis16240 buffer and trigger code and more than half of the core
driver code.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
11 years agostaging:iio:adis16220: Use adis library
Lars-Peter Clausen [Tue, 13 Nov 2012 13:28:00 +0000 (13:28 +0000)]
staging:iio:adis16220: Use adis library

Use the new adis library for the adis16220 driver. The adis16220 driver is a bit
special and so we can only make use of the generic register access and control
functions for now.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
11 years agostaging:iio:adis16209: Use adis library
Lars-Peter Clausen [Tue, 13 Nov 2012 13:28:00 +0000 (13:28 +0000)]
staging:iio:adis16209: Use adis library

Use the new adis library for the adis16209 driver. This allows us to completely
scrap the adis16209 buffer and trigger code and more than half of the core
driver code.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
11 years agostaging:iio:adis16204: Use adis library
Lars-Peter Clausen [Tue, 13 Nov 2012 13:28:00 +0000 (13:28 +0000)]
staging:iio:adis16204: Use adis library

Use the new adis library for the adis16204 driver. This allows us to completely
scrap the adis16204 buffer and trigger code and more than half of the core
driver code.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
11 years agostaging:iio:adis16203: Use adis library
Lars-Peter Clausen [Tue, 13 Nov 2012 13:28:00 +0000 (13:28 +0000)]
staging:iio:adis16203: Use adis library

Use the new adis library for the adis16203 driver. This allows us to completely
scrap the adis16203 buffer and trigger code and more than half of the core
driver code.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
11 years agostaging:iio:adis16201: Use adis library
Lars-Peter Clausen [Tue, 13 Nov 2012 13:28:00 +0000 (13:28 +0000)]
staging:iio:adis16201: Use adis library

Use the new adis library for the adis16201 driver. This allows us to completely
scrap the adis16201 buffer and trigger code and more than half of the core
driver code.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
11 years agostaging:iio: Add common ADIS library
Lars-Peter Clausen [Tue, 13 Nov 2012 13:28:00 +0000 (13:28 +0000)]
staging:iio: Add common ADIS library

A lot of the devices from the ADIS family use the same methods for accessing
registers, sampling data and trigger handling. They also have similar register
layout for the control registers.

This patch adds a common library for these devices. The library implements
functions for reading and writing registers as buffer and trigger management. It
also provides a set functions for accessing the control registers and for
running the devices internal self-test. Having this common library code will
allow us to remove a lot of duplicated code.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
11 years agoiio: isl29018: fix to return error or 0 in isl29018_write_raw()
Wei Yongjun [Thu, 8 Nov 2012 09:05:00 +0000 (09:05 +0000)]
iio: isl29018: fix to return error or 0 in isl29018_write_raw()

We had assigned the return value to 'ret' but ignored it when
return from isl29018_write_raw(), it's better to return 'ret'
instead of 0.

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: Jonathan Cameron <jic23@kernel.org>
11 years agoiio: Fix iio_buffer_register stub signature
Lars-Peter Clausen [Tue, 13 Nov 2012 11:48:00 +0000 (11:48 +0000)]
iio: Fix iio_buffer_register stub signature

Match the iio_buffer_register stub signature up to the real function and make
the second parameter const. This fixes a the following warnings if
CONFIG_IIO_BUFFER is disabled:

drivers/staging/iio/accel/adis16201_core.c: In function â€˜adis16201_probe’:
drivers/staging/iio/accel/adis16201_core.c:536: warning: passing argument 2 of â€˜iio_buffer_register’ discards qualifiers from pointer target type
drivers/staging/iio/accel/adis16203_core.c: In function â€˜adis16203_probe’:
drivers/staging/iio/accel/adis16203_core.c:468: warning: passing argument 2 of â€˜iio_buffer_register’ discards qualifiers from pointer target type
drivers/staging/iio/accel/adis16204_core.c: In function â€˜adis16204_probe’:
drivers/staging/iio/accel/adis16204_core.c:527: warning: passing argument 2 of â€˜iio_buffer_register’ discards qualifiers from pointer target type
drivers/staging/iio/accel/adis16209_core.c: In function â€˜adis16209_probe’:
drivers/staging/iio/accel/adis16209_core.c:542: warning: passing argument 2 of â€˜iio_buffer_register’ discards qualifiers from pointer target type
drivers/staging/iio/accel/adis16240_core.c: In function â€˜adis16240_probe’:
drivers/staging/iio/accel/adis16240_core.c:588: warning: passing argument 2 of â€˜iio_buffer_register’ discards qualifiers from pointer target type

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
11 years agoiio: hid-sensor: Return proper error if kmemdup fails
Axel Lin [Sat, 27 Oct 2012 15:03:00 +0000 (16:03 +0100)]
iio: hid-sensor: Return proper error if kmemdup fails

Return -ENOMEM instead of 0 if kmemdup fails.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
11 years agotsl2563: fixed bug with disabling interrupts
Derek Basehore [Thu, 4 Oct 2012 23:54:00 +0000 (00:54 +0100)]
tsl2563: fixed bug with disabling interrupts

In tsl_2563_write_interrupt_config and tsl2562_remove, interrupts are not
disabled where they should be. This seems to be from a mistake of using |=
instead of &= in 2 lines of code.

Signed-off-by: Derek Basehore <dbasehore@chromium.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
11 years agodrivers/iio/industrialio-event.c: eliminate possible double free
Julia Lawall [Sun, 21 Oct 2012 10:52:00 +0000 (11:52 +0100)]
drivers/iio/industrialio-event.c: eliminate possible double free

The function __iio_add_event_config_attrs is only called once, by the
function iio_device_register_eventset.  If the call fails,
iio_device_register_eventset calls __iio_remove_event_config_attrs.  There
is thus no need for __iio_add_event_config_attrs to also call
__iio_remove_event_config_attrs on failure.

A simplified version of the semantic match that finds this problem is as
follows: (http://coccinelle.lip6.fr/)

// <smpl>
@r@
identifier f,free,a;
parameter list[n] ps;
type T;
expression e;
@@

f(ps,T a,...) {
  ... when any
      when != a = e
  if(...) { ... free(a); ... return ...; }
  ... when any
}

@@
identifier r.f,r.free;
expression x,a;
expression list[r.n] xs;
@@

* x = f(xs,a,...);
  if (...) { ... free(a); ... return ...; }
// </smpl>

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
11 years agostaging:iio:adt7410: Fix adt7410_set_mode return value
Lars-Peter Clausen [Mon, 22 Oct 2012 09:42:00 +0000 (10:42 +0100)]
staging:iio:adt7410: Fix adt7410_set_mode return value

The function is expected to return the number of bytes consumed and as long as
not all bytes have been consumed the function will be called again. Currently
the function returns 'ret', which will always be 0 in this case, so we end up in
a endless loop since the caller will assume that no bytes have been consumed. So
instead return len as it is supposed to.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
11 years agoiio: hid-sensors: convert HID_SENSOR_ENUM_BASE_QUIRKS to bool
Kirill A. Shutemov [Mon, 22 Oct 2012 07:57:00 +0000 (08:57 +0100)]
iio: hid-sensors: convert HID_SENSOR_ENUM_BASE_QUIRKS to bool

It's non-sense to use tristate for the option, it's bool.

Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
11 years agoMerge 3.7-rc6 into staging-next
Greg Kroah-Hartman [Sat, 17 Nov 2012 02:24:22 +0000 (18:24 -0800)]
Merge 3.7-rc6 into staging-next

11 years agoLinux 3.7-rc6
Linus Torvalds [Sat, 17 Nov 2012 01:42:40 +0000 (17:42 -0800)]
Linux 3.7-rc6

11 years agoMerge git://git.kernel.org/pub/scm/virt/kvm/kvm
Linus Torvalds [Sat, 17 Nov 2012 00:49:10 +0000 (16:49 -0800)]
Merge git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull KVM fix from Marcelo Tosatti:
 "A correction for oops on module init with older Intel hosts."

* git://git.kernel.org/pub/scm/virt/kvm/kvm:
  KVM: x86: Fix invalid secondary exec controls in vmx_cpuid_update()

11 years agoMerge branch 'akpm' (Fixes from Andrew)
Linus Torvalds [Fri, 16 Nov 2012 23:26:38 +0000 (15:26 -0800)]
Merge branch 'akpm' (Fixes from Andrew)

Merge misc fixes from Andrew Morton.

* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (12 patches)
  revert "mm: fix-up zone present pages"
  tmpfs: change final i_blocks BUG to WARNING
  tmpfs: fix shmem_getpage_gfp() VM_BUG_ON
  mm: highmem: don't treat PKMAP_ADDR(LAST_PKMAP) as a highmem address
  mm: revert "mm: vmscan: scale number of pages reclaimed by reclaim/compaction based on failures"
  rapidio: fix kernel-doc warnings
  swapfile: fix name leak in swapoff
  memcg: fix hotplugged memory zone oops
  mips, arc: fix build failure
  memcg: oom: fix totalpages calculation for memory.swappiness==0
  mm: fix build warning for uninitialized value
  mm: add anon_vma_lock to validate_mm()

11 years agostaging: drm/omap: Fix usage of IS_ERR_OR_NULL and PTR_ERR
Andy Gross [Fri, 16 Nov 2012 19:10:57 +0000 (13:10 -0600)]
staging: drm/omap: Fix usage of IS_ERR_OR_NULL and PTR_ERR

Return -ENOMEM if dmm_txn_init cannot allocate a refill engine.

v2: Fix typing issue seen with newer compilers

Signed-off-by: Andy Gross <andy.gross@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agostaging/serqt_usb2: Refactor qt_status_change_check() in serqt_usb2.c
YAMANE Toshiaki [Fri, 16 Nov 2012 20:19:22 +0000 (05:19 +0900)]
staging/serqt_usb2: Refactor qt_status_change_check() in serqt_usb2.c

Modify qt_status_change_check() and delete qt_status_change().

Signed-off-by: YAMANE Toshiaki <yamanetoshi@gmail.com>
Acked-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agorevert "mm: fix-up zone present pages"
Andrew Morton [Fri, 16 Nov 2012 22:15:06 +0000 (14:15 -0800)]
revert "mm: fix-up zone present pages"

Revert commit 7f1290f2f2a4 ("mm: fix-up zone present pages")

That patch tried to fix a issue when calculating zone->present_pages,
but it caused a regression on 32bit systems with HIGHMEM.  With that
change, reset_zone_present_pages() resets all zone->present_pages to
zero, and fixup_zone_present_pages() is called to recalculate
zone->present_pages when the boot allocator frees core memory pages into
buddy allocator.  Because highmem pages are not freed by bootmem
allocator, all highmem zones' present_pages becomes zero.

Various options for improving the situation are being discussed but for
now, let's return to the 3.6 code.

Cc: Jianguo Wu <wujianguo@huawei.com>
Cc: Jiang Liu <jiang.liu@huawei.com>
Cc: Petr Tesarik <ptesarik@suse.cz>
Cc: "Luck, Tony" <tony.luck@intel.com>
Cc: Mel Gorman <mel@csn.ul.ie>
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: Minchan Kim <minchan.kim@gmail.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: David Rientjes <rientjes@google.com>
Tested-by: Chris Clayton <chris2553@googlemail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
11 years agotmpfs: change final i_blocks BUG to WARNING
Hugh Dickins [Fri, 16 Nov 2012 22:15:04 +0000 (14:15 -0800)]
tmpfs: change final i_blocks BUG to WARNING

Under a particular load on one machine, I have hit shmem_evict_inode()'s
BUG_ON(inode->i_blocks), enough times to narrow it down to a particular
race between swapout and eviction.

It comes from the "if (freed > 0)" asymmetry in shmem_recalc_inode(),
and the lack of coherent locking between mapping's nrpages and shmem's
swapped count.  There's a window in shmem_writepage(), between lowering
nrpages in shmem_delete_from_page_cache() and then raising swapped
count, when the freed count appears to be +1 when it should be 0, and
then the asymmetry stops it from being corrected with -1 before hitting
the BUG.

One answer is coherent locking: using tree_lock throughout, without
info->lock; reasonable, but the raw_spin_lock in percpu_counter_add() on
used_blocks makes that messier than expected.  Another answer may be a
further effort to eliminate the weird shmem_recalc_inode() altogether,
but previous attempts at that failed.

So far undecided, but for now change the BUG_ON to WARN_ON: in usual
circumstances it remains a useful consistency check.

Signed-off-by: Hugh Dickins <hughd@google.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
11 years agotmpfs: fix shmem_getpage_gfp() VM_BUG_ON
Hugh Dickins [Fri, 16 Nov 2012 22:15:03 +0000 (14:15 -0800)]
tmpfs: fix shmem_getpage_gfp() VM_BUG_ON

Fuzzing with trinity hit the "impossible" VM_BUG_ON(error) (which Fedora
has converted to WARNING) in shmem_getpage_gfp():

  WARNING: at mm/shmem.c:1151 shmem_getpage_gfp+0xa5c/0xa70()
  Pid: 29795, comm: trinity-child4 Not tainted 3.7.0-rc2+ #49
  Call Trace:
    warn_slowpath_common+0x7f/0xc0
    warn_slowpath_null+0x1a/0x20
    shmem_getpage_gfp+0xa5c/0xa70
    shmem_fault+0x4f/0xa0
    __do_fault+0x71/0x5c0
    handle_pte_fault+0x97/0xae0
    handle_mm_fault+0x289/0x350
    __do_page_fault+0x18e/0x530
    do_page_fault+0x2b/0x50
    page_fault+0x28/0x30
    tracesys+0xe1/0xe6

Thanks to Johannes for pointing to truncation: free_swap_and_cache()
only does a trylock on the page, so the page lock we've held since
before confirming swap is not enough to protect against truncation.

What cleanup is needed in this case? Just delete_from_swap_cache(),
which takes care of the memcg uncharge.

Signed-off-by: Hugh Dickins <hughd@google.com>
Reported-by: Dave Jones <davej@redhat.com>
Cc: Johannes Weiner <hannes@cmpxchg.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
11 years agomm: highmem: don't treat PKMAP_ADDR(LAST_PKMAP) as a highmem address
Will Deacon [Fri, 16 Nov 2012 22:15:00 +0000 (14:15 -0800)]
mm: highmem: don't treat PKMAP_ADDR(LAST_PKMAP) as a highmem address

kmap_to_page returns the corresponding struct page for a virtual address
of an arbitrary mapping.  This works by checking whether the address
falls in the pkmap region and using the pkmap page tables instead of the
linear mapping if appropriate.

Unfortunately, the bounds checking means that PKMAP_ADDR(LAST_PKMAP) is
incorrectly treated as a highmem address and we can end up walking off
the end of pkmap_page_table and subsequently passing junk to pte_page.

This patch fixes the bound check to stay within the pkmap tables.

Signed-off-by: Will Deacon <will.deacon@arm.com>
Cc: Mel Gorman <mgorman@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
11 years agomm: revert "mm: vmscan: scale number of pages reclaimed by reclaim/compaction based...
Mel Gorman [Fri, 16 Nov 2012 22:14:59 +0000 (14:14 -0800)]
mm: revert "mm: vmscan: scale number of pages reclaimed by reclaim/compaction based on failures"

Jiri Slaby reported the following:

(It's an effective revert of "mm: vmscan: scale number of pages
reclaimed by reclaim/compaction based on failures".) Given kswapd
had hours of runtime in ps/top output yesterday in the morning
and after the revert it's now 2 minutes in sum for the last 24h,
I would say, it's gone.

The intention of the patch in question was to compensate for the loss of
lumpy reclaim.  Part of the reason lumpy reclaim worked is because it
aggressively reclaimed pages and this patch was meant to be a sane
compromise.

When compaction fails, it gets deferred and both compaction and
reclaim/compaction is deferred avoid excessive reclaim.  However, since
commit c654345924f7 ("mm: remove __GFP_NO_KSWAPD"), kswapd is woken up
each time and continues reclaiming which was not taken into account when
the patch was developed.

Attempts to address the problem ended up just changing the shape of the
problem instead of fixing it.  The release window gets closer and while
a THP allocation failing is not a major problem, kswapd chewing up a lot
of CPU is.

This patch reverts commit 83fde0f22872 ("mm: vmscan: scale number of
pages reclaimed by reclaim/compaction based on failures") and will be
revisited in the future.

Signed-off-by: Mel Gorman <mgorman@suse.de>
Cc: Zdenek Kabelac <zkabelac@redhat.com>
Tested-by: Valdis Kletnieks <Valdis.Kletnieks@vt.edu>
Cc: Jiri Slaby <jirislaby@gmail.com>
Cc: Rik van Riel <riel@redhat.com>
Cc: Jiri Slaby <jslaby@suse.cz>
Cc: Johannes Hirte <johannes.hirte@fem.tu-ilmenau.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
11 years agorapidio: fix kernel-doc warnings
Randy Dunlap [Fri, 16 Nov 2012 22:14:56 +0000 (14:14 -0800)]
rapidio: fix kernel-doc warnings

Fix rapidio kernel-doc warnings:

  Warning(drivers/rapidio/rio.c:415): No description found for parameter 'local'
  Warning(drivers/rapidio/rio.c:415): Excess function parameter 'lstart' description in 'rio_map_inb_region'
  Warning(include/linux/rio.h:290): No description found for parameter 'switches'
  Warning(include/linux/rio.h:290): No description found for parameter 'destid_table'

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Matt Porter <mporter@kernel.crashing.org>
Acked-by: Alexandre Bounine <alexandre.bounine@idt.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
11 years agoswapfile: fix name leak in swapoff
Xiaotian Feng [Fri, 16 Nov 2012 22:14:55 +0000 (14:14 -0800)]
swapfile: fix name leak in swapoff

There's a name leak introduced by commit 91a27b2a7567 ("vfs: define
struct filename and have getname() return it").  Add the missing
putname.

[akpm@linux-foundation.org: cleanup]
Signed-off-by: Xiaotian Feng <dannyfeng@tencent.com>
Reviewed-by: Jeff Layton <jlayton@redhat.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
11 years agomemcg: fix hotplugged memory zone oops
Hugh Dickins [Fri, 16 Nov 2012 22:14:54 +0000 (14:14 -0800)]
memcg: fix hotplugged memory zone oops

When MEMCG is configured on (even when it's disabled by boot option),
when adding or removing a page to/from its lru list, the zone pointer
used for stats updates is nowadays taken from the struct lruvec.  (On
many configurations, calculating zone from page is slower.)

But we have no code to update all the lruvecs (per zone, per memcg) when
a memory node is hotadded.  Here's an extract from the oops which
results when running numactl to bind a program to a newly onlined node:

  BUG: unable to handle kernel NULL pointer dereference at 0000000000000f60
  IP:  __mod_zone_page_state+0x9/0x60
  Pid: 1219, comm: numactl Not tainted 3.6.0-rc5+ #180 Bochs Bochs
  Process numactl (pid: 1219, threadinfo ffff880039abc000, task ffff8800383c4ce0)
  Call Trace:
    __pagevec_lru_add_fn+0xdf/0x140
    pagevec_lru_move_fn+0xb1/0x100
    __pagevec_lru_add+0x1c/0x30
    lru_add_drain_cpu+0xa3/0x130
    lru_add_drain+0x2f/0x40
   ...

The natural solution might be to use a memcg callback whenever memory is
hotadded; but that solution has not been scoped out, and it happens that
we do have an easy location at which to update lruvec->zone.  The lruvec
pointer is discovered either by mem_cgroup_zone_lruvec() or by
mem_cgroup_page_lruvec(), and both of those do know the right zone.

So check and set lruvec->zone in those; and remove the inadequate
attempt to set lruvec->zone from lruvec_init(), which is called before
NODE_DATA(node) has been allocated in such cases.

Ah, there was one exceptionr.  For no particularly good reason,
mem_cgroup_force_empty_list() has its own code for deciding lruvec.
Change it to use the standard mem_cgroup_zone_lruvec() and
mem_cgroup_get_lru_size() too.  In fact it was already safe against such
an oops (the lru lists in danger could only be empty), but we're better
proofed against future changes this way.

I've marked this for stable (3.6) since we introduced the problem in 3.5
(now closed to stable); but I have no idea if this is the only fix
needed to get memory hotadd working with memcg in 3.6, and received no
answer when I enquired twice before.

Reported-by: Tang Chen <tangchen@cn.fujitsu.com>
Signed-off-by: Hugh Dickins <hughd@google.com>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Konstantin Khlebnikov <khlebnikov@openvz.org>
Cc: Wen Congyang <wency@cn.fujitsu.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
11 years agomips, arc: fix build failure
David Rientjes [Fri, 16 Nov 2012 22:14:52 +0000 (14:14 -0800)]
mips, arc: fix build failure

Using a cross-compiler to fix another issue, the following build error
occurred for mips defconfig:

  arch/mips/fw/arc/misc.c: In function 'ArcHalt':
  arch/mips/fw/arc/misc.c:25:2: error: implicit declaration of function 'local_irq_disable'

Fix it up by including irqflags.h.

Signed-off-by: David Rientjes <rientjes@google.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
11 years agomemcg: oom: fix totalpages calculation for memory.swappiness==0
Michal Hocko [Fri, 16 Nov 2012 22:14:49 +0000 (14:14 -0800)]
memcg: oom: fix totalpages calculation for memory.swappiness==0

oom_badness() takes a totalpages argument which says how many pages are
available and it uses it as a base for the score calculation.  The value
is calculated by mem_cgroup_get_limit which considers both limit and
total_swap_pages (resp.  memsw portion of it).

This is usually correct but since fe35004fbf9e ("mm: avoid swapping out
with swappiness==0") we do not swap when swappiness is 0 which means
that we cannot really use up all the totalpages pages.  This in turn
confuses oom score calculation if the memcg limit is much smaller than
the available swap because the used memory (capped by the limit) is
negligible comparing to totalpages so the resulting score is too small
if adj!=0 (typically task with CAP_SYS_ADMIN or non zero oom_score_adj).
A wrong process might be selected as result.

The problem can be worked around by checking mem_cgroup_swappiness==0
and not considering swap at all in such a case.

Signed-off-by: Michal Hocko <mhocko@suse.cz>
Acked-by: David Rientjes <rientjes@google.com>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
11 years agomm: fix build warning for uninitialized value
David Rientjes [Fri, 16 Nov 2012 22:14:48 +0000 (14:14 -0800)]
mm: fix build warning for uninitialized value

do_wp_page() sets mmun_called if mmun_start and mmun_end were
initialized and, if so, may call mmu_notifier_invalidate_range_end()
with these values.  This doesn't prevent gcc from emitting a build
warning though:

  mm/memory.c: In function `do_wp_page':
  mm/memory.c:2530: warning: `mmun_start' may be used uninitialized in this function
  mm/memory.c:2531: warning: `mmun_end' may be used uninitialized in this function

It's much easier to initialize the variables to impossible values and do
a simple comparison to determine if they were initialized to remove the
bool entirely.

Signed-off-by: David Rientjes <rientjes@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
11 years agomm: add anon_vma_lock to validate_mm()
Michel Lespinasse [Fri, 16 Nov 2012 22:14:47 +0000 (14:14 -0800)]
mm: add anon_vma_lock to validate_mm()

Iterating over the vma->anon_vma_chain without anon_vma_lock may cause
NULL ptr deref in anon_vma_interval_tree_verify(), because the node in the
chain might have been removed.

  BUG: unable to handle kernel paging request at fffffffffffffff0
  IP: [<ffffffff8122c29c>] anon_vma_interval_tree_verify+0xc/0xa0
  PGD 4e28067 PUD 4e29067 PMD 0
  Oops: 0000 [#1] PREEMPT SMP DEBUG_PAGEALLOC
  CPU 0
  Pid: 9050, comm: trinity-child64 Tainted: G        W    3.7.0-rc2-next-20121025-sasha-00001-g673f98e-dirty #77
  RIP: 0010: anon_vma_interval_tree_verify+0xc/0xa0
  Process trinity-child64 (pid: 9050, threadinfo ffff880045f80000, task ffff880048eb0000)
  Call Trace:
    validate_mm+0x58/0x1e0
    vma_adjust+0x635/0x6b0
    __split_vma.isra.22+0x161/0x220
    split_vma+0x24/0x30
    sys_madvise+0x5da/0x7b0
    tracesys+0xe1/0xe6
  RIP  anon_vma_interval_tree_verify+0xc/0xa0
  CR2: fffffffffffffff0

Figured out by Bob Liu.

Reported-by: Sasha Levin <sasha.levin@oracle.com>
Cc: Bob Liu <lliubbo@gmail.com>
Signed-off-by: Michel Lespinasse <walken@google.com>
Reviewed-by: Rik van Riel <riel@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
11 years agoKVM: x86: Fix invalid secondary exec controls in vmx_cpuid_update()
Takashi Iwai [Fri, 9 Nov 2012 14:20:17 +0000 (15:20 +0100)]
KVM: x86: Fix invalid secondary exec controls in vmx_cpuid_update()

The commit [ad756a16: KVM: VMX: Implement PCID/INVPCID for guests with
EPT] introduced the unconditional access to SECONDARY_VM_EXEC_CONTROL,
and this triggers kernel warnings like below on old CPUs:

    vmwrite error: reg 401e value a0568000 (err 12)
    Pid: 13649, comm: qemu-kvm Not tainted 3.7.0-rc4-test2+ #154
    Call Trace:
     [<ffffffffa0558d86>] vmwrite_error+0x27/0x29 [kvm_intel]
     [<ffffffffa054e8cb>] vmcs_writel+0x1b/0x20 [kvm_intel]
     [<ffffffffa054f114>] vmx_cpuid_update+0x74/0x170 [kvm_intel]
     [<ffffffffa03629b6>] kvm_vcpu_ioctl_set_cpuid2+0x76/0x90 [kvm]
     [<ffffffffa0341c67>] kvm_arch_vcpu_ioctl+0xc37/0xed0 [kvm]
     [<ffffffff81143f7c>] ? __vunmap+0x9c/0x110
     [<ffffffffa0551489>] ? vmx_vcpu_load+0x39/0x1a0 [kvm_intel]
     [<ffffffffa0340ee2>] ? kvm_arch_vcpu_load+0x52/0x1a0 [kvm]
     [<ffffffffa032dcd4>] ? vcpu_load+0x74/0xd0 [kvm]
     [<ffffffffa032deb0>] kvm_vcpu_ioctl+0x110/0x5e0 [kvm]
     [<ffffffffa032e93d>] ? kvm_dev_ioctl+0x4d/0x4a0 [kvm]
     [<ffffffff8117dc6f>] do_vfs_ioctl+0x8f/0x530
     [<ffffffff81139d76>] ? remove_vma+0x56/0x60
     [<ffffffff8113b708>] ? do_munmap+0x328/0x400
     [<ffffffff81187c8c>] ? fget_light+0x4c/0x100
     [<ffffffff8117e1a1>] sys_ioctl+0x91/0xb0
     [<ffffffff815a942d>] system_call_fastpath+0x1a/0x1f

This patch adds a check for the availability of secondary exec
control to avoid these warnings.

Cc: <stable@vger.kernel.org> [v3.6+]
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
11 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Linus Torvalds [Fri, 16 Nov 2012 22:10:15 +0000 (14:10 -0800)]
Merge git://git./linux/kernel/git/davem/net

Pull networking updates from David Miller:

 1) tx_filtered/ps_tx_buf queues need to be accessed with the SKB queue
    lock, from Arik Nemtsov.

 2) Don't call 802.11 driver's filter configure method until it's
    actually open, from Felix Fietkau.

 3) Use ieee80211_free_txskb otherwise we leak control information.
    From Johannes Berg.

 4) Fix memory leak in bluetooth UUID removal,f rom Johan Hedberg.

 5) The shift mask trick doesn't work properly when 'optname' is out of
    range in do_ip_setsockopt().  Use a straightforward switch statement
    instead, the compiler emits essentially the same code but without
    the missing range check.  From Xi Wang.

 6) Fix when we call tcp_replace_ts_recent() otherwise we can
    erroneously accept a too-high tsval.  From Eric Dumazet.

 7) VXLAN bug fixes, mostly to do with VLAN header length handling, from
    Alexander Duyck.

 8) Missing return value initialization for IPV6_MINHOPCOUNT socket
    option handling.  From Hannes Frederic.

 9) Fix regression in tasklet handling in jme/ksz884x/xilinx drivers,
    from Xiaotian Feng.

10) At smsc911x driver init time, we don't know if the chip is in word
    swap mode or not.  However we do need to wait for the control
    register's ready bit to be set before we program any other part of
    the chip.  Adjust the wait loop to account for this.  From Kamlakant
    Patel.

11) Revert erroneous MDIO bus unregister change to mdio-bitbang.c

12) Fix memory leak in /proc/net/sctp/, from Tommi Rantala.

13) tilegx driver registers IRQ with NULL name, oops, from Simon Marchi.

14) TCP metrics hash table kzalloc() based allocation can fail, back
    down to using vmalloc() if it does.  From Eric Dumazet.

15) Fix packet steering out-of-order delivery regression, from Tom
    Herbert.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (40 commits)
  net-rps: Fix brokeness causing OOO packets
  tcp: handle tcp_net_metrics_init() order-5 memory allocation failures
  batman-adv: process broadcast packets in BLA earlier
  batman-adv: don't add TEMP clients belonging to other backbone nodes
  batman-adv: correctly pass the client flag on tt_response
  batman-adv: fix tt_global_entries flags update
  tilegx: request_irq with a non-null device name
  net: correct check in dev_addr_del()
  tcp: fix retransmission in repair mode
  sctp: fix /proc/net/sctp/ memory leak
  Revert "drivers/net/phy/mdio-bitbang.c: Call mdiobus_unregister before mdiobus_free"
  net/smsc911x: Fix ready check in cases where WORD_SWAP is needed
  drivers/net: fix tasklet misuse issue
  ipv4/ip_vti.c: VTI fix post-decryption forwarding
  brcmfmac: fix typo in CONFIG_BRCMISCAN
  vxlan: Update hard_header_len based on lowerdev when instantiating VXLAN
  vxlan: fix a typo.
  ipv6: setsockopt(IPIPPROTO_IPV6, IPV6_MINHOPCOUNT) forgot to set return value
  doc/net: Fix typo in netdev-features.txt
  vxlan: Fix error that was resulting in VXLAN MTU size being 10 bytes too large
  ...

11 years agoMerge branch 'for-davem' of git://git.kernel.org/pub/scm/linux/kernel/git/linville...
David S. Miller [Fri, 16 Nov 2012 19:37:18 +0000 (14:37 -0500)]
Merge branch 'for-davem' of git://git./linux/kernel/git/linville/wireless

John W. Linville says:

====================
This batch of fixes is intended for the 3.7 stream...

This includes a pull of the Bluetooth tree.  Gustavo says:

"A few important fixes to go into 3.7. There is a new hw support by Marcos
Chaparro. Johan added a memory leak fix and hci device index list fix.
Also Marcel fixed a race condition in the device set up that was prevent the
bt monitor to work properly. Last, Paulo Sérgio added a fix to the error
status when pairing for LE fails. This was prevent userspace to work to handle
the failure properly."

Regarding the mac80211 pull, Johannes says:

"I have a locking fix for some SKB queues, a variable initialization to
avoid crashes in a certain failure case, another free_txskb fix from
Felix and another fix from him to avoid calling a stopped driver, a fix
for a (very unlikely) memory leak and a fix to not send null data
packets when resuming while not associated."

Regarding the iwlwifi pull, Johannes says:

"Two more fixes for iwlwifi ... one to use ieee80211_free_txskb(), and
one to check DMA mapping errors, please pull."

On top of that, Johannes also included a wireless regulatory fix
to allow 40 MHz on channels 12 and 13 in world roaming mode.  Also,
Hauke Mehrtens fixes a #ifdef typo in brcmfmac.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agonet-rps: Fix brokeness causing OOO packets
Tom Herbert [Fri, 16 Nov 2012 09:04:15 +0000 (09:04 +0000)]
net-rps: Fix brokeness causing OOO packets

In commit c445477d74ab3779 which adds aRFS to the kernel, the CPU
selected for RFS is not set correctly when CPU is changing.
This is causing OOO packets and probably other issues.

Signed-off-by: Tom Herbert <therbert@google.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Acked-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agoipack: remove ipack_ids.h file
Samuel Iglesias Gonsalvez [Fri, 16 Nov 2012 18:33:46 +0000 (19:33 +0100)]
ipack: remove ipack_ids.h file

Its contents are merged into ipack.h. So this file is not needed.

Doing that, it simplifies the ipack-related driver development.

Signed-off-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoipack: move header files to include/linux
Samuel Iglesias Gonsalvez [Fri, 16 Nov 2012 18:33:45 +0000 (19:33 +0100)]
ipack: move header files to include/linux

Move ipack header files to include/linux/ directory where they belong.

Signed-off-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoMerge tag 'batman-adv-fix-for-davem' of git://git.open-mesh.org/linux-merge
David S. Miller [Fri, 16 Nov 2012 18:38:12 +0000 (13:38 -0500)]
Merge tag 'batman-adv-fix-for-davem' of git://git.open-mesh.org/linux-merge

Included fixes are:
- update the client entry status flags when using the "early client
  detection". This makes the Distributed AP isolation correctly work;
- transfer the client entry status flags when recovering the translation
  table from another node. This makes the Distributed AP isolation correctly
  work;
- prevent the "early client detection mechanism" to add clients belonging to
  other backbone nodes in the same LAN. This breaks connectivity when using this
  mechanism together with the Bridge Loop Avoidance
- process broadcast packets with the Bridge Loop Avoidance before any other
  component. BLA can possibly drop the packets based on the source address. This
  makes the "early client detection mechanism" correctly work when used with
  BLA.

Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agotcp: handle tcp_net_metrics_init() order-5 memory allocation failures
Eric Dumazet [Fri, 16 Nov 2012 05:31:53 +0000 (05:31 +0000)]
tcp: handle tcp_net_metrics_init() order-5 memory allocation failures

order-5 allocations can fail with current kernels, we should
try vmalloc() as well.

Reported-by: Julien Tinnes <jln@google.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agoThermal: Add Linux/Thermal subsystem info in MAINTAINER file
Zhang Rui [Thu, 15 Nov 2012 00:58:27 +0000 (08:58 +0800)]
Thermal: Add Linux/Thermal subsystem info in MAINTAINER file

All the changes made to the generic thermal layer, or platform thermal
drivers that make use of the thermal layer, should be sent to
linux-pm@vger.kernel.org for discussion.

And as the maintainer, I will only apply the patches that have been sent
to linux-pm@vger.kernel.org.

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
11 years agomm, oom: reintroduce /proc/pid/oom_adj
David Rientjes [Tue, 13 Nov 2012 01:53:04 +0000 (17:53 -0800)]
mm, oom: reintroduce /proc/pid/oom_adj

This is mostly a revert of 01dc52ebdf47 ("oom: remove deprecated oom_adj")
from Davidlohr Bueso.

It reintroduces /proc/pid/oom_adj for backwards compatibility with earlier
kernels.  It simply scales the value linearly when /proc/pid/oom_score_adj
is written.

The major difference is that its scheduled removal is no longer included
in Documentation/feature-removal-schedule.txt.  We do warn users with a
single printk, though, to suggest the more powerful and supported
/proc/pid/oom_score_adj interface.

Reported-by: Artem S. Tashkinov <t.artem@lycos.com>
Signed-off-by: David Rientjes <rientjes@google.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
11 years agoMerge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm...
Linus Torvalds [Fri, 16 Nov 2012 18:08:45 +0000 (10:08 -0800)]
Merge tag 'fixes-for-linus' of git://git./linux/kernel/git/arm/arm-soc

Pull ARM SoC fixes from Olof Johansson:
 "We've been sitting on this longer than we meant to due to travel and
  other activities, but the number of patches is luckily not that high.

  Biggest changes are from a batch of OMAP bugfixes, but there are a few
  for the broader set of SoCs too (bcm2835, pxa, highbank, tegra, at91
  and i.MX).

  The OMAP patches contain some fixes for MUSB/PHY on omap4 which ends
  up being a bit on the large side but needed for legacy (non-DT)
  platforms.  Beyond that there are a handful of hwmod/pm changes.

  So, fairly noncontroversial stuff all in all, and as usual around this
  time the fixes are well targeted at specific problems."

* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  ARM: imx: ehci: fix host power mask bit
  ARM i.MX: fix error-valued pointer dereference in clk_register_gate2()
  ARM: at91/usbh: fix overcurrent gpio setup
  ARM: at91/AT91SAM9G45: fix crypto peripherals irq issue due to sparse irq support
  ARM: boot: Fix usage of kecho
  ARM: OMAP: ocp2scp: create omap device for ocp2scp
  ARM: OMAP4: add _dev_attr_ to ocp2scp for representing usb_phy
  drivers: bus: ocp2scp: add pdata support
  irqchip: irq-bcm2835: Add terminating entry for of_device_id table
  ARM: highbank: retry wfi on reset request
  ARM: OMAP4: PM: fix regulator name for VDD_MPU
  ARM: OMAP4: hwmod data: do not enable or reset the McPDM during kernel init
  ARM: OMAP2+: hwmod: add flag to prevent hwmod code from touching IP block during init
  ARM: dt: tegra: fix length of pad control and mux registers
  ARM: OMAP: hwmod: wait for sysreset complete after enabling hwmod
  ARM: OMAP2+: clockdomain: Fix OMAP4 ISS clk domain to support only SWSUP
  ARM: pxa/spitz_pm: Fix hang when resuming from STR
  ARM: pxa: hx4700: Fix backlight PWM device number
  ARM: OMAP2+: PM: add missing newline to VC warning message

11 years agoMerge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wirel...
John W. Linville [Fri, 16 Nov 2012 17:59:13 +0000 (12:59 -0500)]
Merge branch 'master' of git://git./linux/kernel/git/linville/wireless into for-davem

11 years agoMerge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas...
Linus Torvalds [Fri, 16 Nov 2012 16:32:07 +0000 (08:32 -0800)]
Merge tag 'arm64-fixes' of git://git./linux/kernel/git/cmarinas/linux-aarch64

Pull arm64 bugfix from Catalin Marinas:
 "Arm64 page permission bug fix.

  Without this fix, the CPU speculatively accesses the interrupt
  controller memory causing random IRQ acknowledge."

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas/linux-aarch64:
  arm64: Distinguish between user and kernel XN bits

11 years agoMAINTAINERS: Add maintainers for Industry Pack subsystem
Samuel Iglesias Gonsalvez [Fri, 16 Nov 2012 15:19:59 +0000 (16:19 +0100)]
MAINTAINERS: Add maintainers for Industry Pack subsystem

Add Samuel Iglesias Gonsalvez, Jens Taprogge and Greg Kroah-Hartman as
maintainers for the Industry Pack subsystem.

Cc: Jens Taprogge <jens.taprogge@taprogge.org>
Signed-off-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoStaging: ipack: move out of staging
Greg Kroah-Hartman [Fri, 16 Nov 2012 16:14:18 +0000 (08:14 -0800)]
Staging: ipack: move out of staging

The ipack subsystem is cleaned up enough to now move out of the staging
tree, and into drivers/ipack.

Cc: Samuel Iglesias Gonsalvez <siglesias@igalia.com>
Cc: Jens Taprogge <jens.taprogge@taprogge.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoStaging: ipack: adapt copyright to CERN guidelines
Samuel Iglesias Gonsalvez [Fri, 16 Nov 2012 15:19:58 +0000 (16:19 +0100)]
Staging: ipack: adapt copyright to CERN guidelines

Adapt the copyright clause to CERN guidelines, as it has the copyright over
them.

Signed-off-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid
Linus Torvalds [Fri, 16 Nov 2012 15:58:20 +0000 (07:58 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/jikos/hid

Pull HID fix from Jiri Kosina:
 "This has a build fix for architectures where memcmp() is macro, from
  Jiri Slaby"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid:
  HID: microsoft: do not use compound literal - fix build

11 years agoarm64: Distinguish between user and kernel XN bits
Catalin Marinas [Thu, 15 Nov 2012 17:21:16 +0000 (17:21 +0000)]
arm64: Distinguish between user and kernel XN bits

On AArch64, the meaning of the XN bit has changed to UXN (user). The PXN
(privileged) bit must be set to prevent kernel execution. Without the
PXN bit set, the CPU may speculatively access device memory. This patch
ensures that all the mappings that the kernel must not execute from
(including user mappings) have the PXN bit set.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
11 years agoMerge tag 'usb-3.7-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Linus Torvalds [Fri, 16 Nov 2012 15:47:18 +0000 (07:47 -0800)]
Merge tag 'usb-3.7-rc5' of git://git./linux/kernel/git/gregkh/usb

Pull USB fixes from Greg Kroah-Hartman:
 "Here are some USB fixes for the 3.7 tree.

  Nothing huge here, just a number of tiny bugfixes resolving issues
  that have been found, and two reverts of patches that were found to
  have caused problems.

  All of these have been in linux-next already.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>"
* tag 'usb-3.7-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
  Revert "USB/host: Cleanup unneccessary irq disable code"
  USB: option: add Alcatel X220/X500D USB IDs
  USB: option: add Novatel E362 and Dell Wireless 5800 USB IDs
  USB: keyspan: fix typo causing GPF on open
  USB: fix build with XEN and EARLY_PRINTK_DBGP enabled but USB_SUPPORT disabled
  USB: usb_wwan: fix bulk-urb allocation
  usb: otg: Fix build errors if USB_MUSB_OMAP2PLUS is selected as module
  usb: musb: ux500: fix 'musbid' undeclared error in ux500_remove()
  Revert "usb: musb: use DMA mode 1 whenever possible"

11 years agoMerge tag 'tty-3.7-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Linus Torvalds [Fri, 16 Nov 2012 15:46:38 +0000 (07:46 -0800)]
Merge tag 'tty-3.7-rc5' of git://git./linux/kernel/git/gregkh/tty

Pull TTY fixes from Greg Kroah-Hartman:
 "Here are two TTY driver fixes for 3.7-rc5.

  They resolve a bug in the hvc driver that has been reported, and fix a
  problem with the list of device ids in the max310x serial driver.

  Both have been in linux-next for a while.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>"
* tag 'tty-3.7-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
  tty: serial: max310x: Add terminating entry for spi_device_id table
  TTY: hvc_console, fix port reference count going to zero prematurely