GitHub/moto-9609/android_kernel_motorola_exynos9610.git
10 years agoInput: zforce - use internal pdata pointer instead of dev_get_platdata
Heiko Stübner [Mon, 27 Jan 2014 20:32:38 +0000 (12:32 -0800)]
Input: zforce - use internal pdata pointer instead of dev_get_platdata

Devicetree support will be creating its own platfprm data structure that
is not attached to the device. Let's use the internal pointer to the
pdata instead of re-fetching it with dev_get_platdata().

Signed-off-by: Heiko Stuebner <heiko.stuebner@bqreaders.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
10 years agoInput: zforce - reduce stack memory allocated to frames
Luis Ortega [Mon, 27 Jan 2014 20:28:33 +0000 (12:28 -0800)]
Input: zforce - reduce stack memory allocated to frames

A frame is a u8 array with the following structure:
[PAYLOAD_HEADER, PAYLOAD_LENGTH, ...PAYLOAD_BODY...]

PAYLOAD_BODY can be at most 255 bytes long, as it's size is represented
by PAYLOAD_LENGTH. Therefore we can reduce the stack memory allocated to
payload_buffer[] roughly by half, from 512 to 257 bytes.

Signed-off-by: Luis Ortega <luiorpe1@upv.es>
Acked-by: Heiko Stuebner <heiko@sntech.de>
Tested-by: Heiko Stuebner <heiko@sntech.de> - bq Cervantes (imx6sl)
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
10 years agoInput: zforce - remove unnecessary payload data checks
Luis Ortega [Mon, 27 Jan 2014 20:27:49 +0000 (12:27 -0800)]
Input: zforce - remove unnecessary payload data checks

The function zforce_read_packet() reads 2 values (bytes) of payload
header, validates them and then proceeds to read the payload body.
The function stores all these in a u8 buffer.

The PAYLOAD_LENGTH check seems to be trying to detect an overflow error.
However, since we are just reading a u8 value from the buffer, these
checks are unnecessary and we should simply compare against zero.

Signed-off-by: Luis Ortega <luiorpe1@upv.es>
Acked-by: Heiko Stuebner <heiko@sntech.de>
Tested-by: Heiko Stuebner <heiko@sntech.de> - bq Cervantes (imx6sl)
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
10 years agoInput: zforce - fix lines exceeding 80 columns
Luis Ortega [Mon, 27 Jan 2014 20:27:35 +0000 (12:27 -0800)]
Input: zforce - fix lines exceeding 80 columns

Fixed lines exceeding 80 characters long wherever possible,
as per the coding style.

Signed-off-by: Luis Ortega <luiorpe1@upv.es>
Acked-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
10 years agoInput: zforce - fix spelling errors
Luis Ortega [Mon, 27 Jan 2014 20:27:06 +0000 (12:27 -0800)]
Input: zforce - fix spelling errors

Fixed a few spelling errors.

Signed-off-by: Luis Ortega <luiorpe1@upv.es>
Acked-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
10 years agoInput: gtco - fix usb_dev leak
Alexey Khoroshilov [Mon, 27 Jan 2014 20:25:47 +0000 (12:25 -0800)]
Input: gtco - fix usb_dev leak

There is usb_get_dev() in gtco_probe(), but there is no usb_put_dev()
anywhere in the driver.

As pointed out by Dmitry Torokhov:
The lifetime of gtco structure is already directly tied to lifetime of
usb_dev: when destroying usb_dev driver core will call remove() function
of currently bound driver (in our case gtco) which will destroy gtco
memory. Taking additional reference is not needed here.

Found by Linux Driver Verification project (linuxtesting.org).

Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
10 years agoInput: wistron_btns - add FS AMILO Pro 8210 support
Jakub Bogusz [Tue, 28 Jan 2014 01:21:32 +0000 (17:21 -0800)]
Input: wistron_btns - add FS AMILO Pro 8210 support

This adds Fujitsu-Siemens AMILO Pro 8210 support to wistron_btns driver.

Functions are very similar to already supported AMILO Pro 3505, but 8210
has WIFI led.

Such functionality is needed to enable WiFi under Linux on 8210 when it
cold boots with hardware rfkill enabled, without booting another operating
system or running custom utility that calls appropriate BIOS function.

Signed-off-by: Jakub Bogusz <qboosh@pld-linux.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
10 years agoInput: wacom - add support for DTU-1031
Ping Cheng [Tue, 21 Jan 2014 04:18:04 +0000 (20:18 -0800)]
Input: wacom - add support for DTU-1031

Signed-off-by: Ping Cheng <pingc@wacom.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
10 years agoInput: wacom - fix wacom->shared guards for dual input devices
Ping Cheng [Fri, 17 Jan 2014 00:28:47 +0000 (16:28 -0800)]
Input: wacom - fix wacom->shared guards for dual input devices

features->quirks can have multiple bits set. For dual input, we only
need to check WACOM_QUIRK_MULTI_INPUT.

Reviewed-by: Jason Gerecke <killertofu@gmail.com>
Signed-off-by: Ping Cheng <pingc@wacom.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
10 years agoInput: edt_ft5x06 - use devm_* functions where appropriate
Lothar Waßmann [Fri, 17 Jan 2014 00:26:55 +0000 (16:26 -0800)]
Input: edt_ft5x06 - use devm_* functions where appropriate

Simplify the error path and remove() function by using devm_*
functions for requesting gpios and irq and allocating the input
device.

Signed-off-by: Lothar Waßmann <LW@KARO-electronics.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
10 years agoInput: hyperv-keyboard - pass through 0xE1 prefix
K. Y. Srinivasan [Sun, 12 Jan 2014 19:09:14 +0000 (11:09 -0800)]
Input: hyperv-keyboard - pass through 0xE1 prefix

Pass through the 0xE1 prefix so atkbd can properly parse the scancode
data.

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
10 years agoInput: logips2pp - fix spelling s/reciver/receiver/
Geert Uytterhoeven [Sun, 12 Jan 2014 19:08:49 +0000 (11:08 -0800)]
Input: logips2pp - fix spelling s/reciver/receiver/

Signed-off-by: Geert Uytterhoeven <geert+renesas@linux-m68k.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
10 years agoInput: delete non-required instances of include <linux/init.h>
Paul Gortmaker [Mon, 6 Jan 2014 18:27:05 +0000 (10:27 -0800)]
Input: delete non-required instances of include <linux/init.h>

None of these files are actually using any __init type directives
and hence don't need to include <linux/init.h>.  Most are just a
left over from __devinit and __cpuinit removal, or simply due to
code getting copied from one driver to the next.

Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
10 years agoInput: twl4030-keypad - convert to using managed resources
Dmitry Torokhov [Sat, 4 Jan 2014 08:52:48 +0000 (00:52 -0800)]
Input: twl4030-keypad - convert to using managed resources

Reviewed-by: Jingoo Han <jg1.han@samsung.com>
Tested-by: Sebastian Reichel <sre@debian.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
10 years agoInput: twl6040-vibra - remove unneeded check for CONFIG_OF
Dmitry Torokhov [Sat, 4 Jan 2014 08:08:49 +0000 (00:08 -0800)]
Input: twl6040-vibra - remove unneeded check for CONFIG_OF

Since the driver requires DT now we do not need to check if CONFIG_OF is
defined.

Reviewed-by: David Herrmann <dh.herrmann@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
10 years agoInput: twl4030-keypad - add device tree support
Sebastian Reichel [Sat, 4 Jan 2014 08:41:03 +0000 (00:41 -0800)]
Input: twl4030-keypad - add device tree support

Add device tree support for twl4030 keypad driver.

Tested on Nokia N900.

Signed-off-by: Sebastian Reichel <sre@debian.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
10 years agoInput: twl6040-vibra - add missing of_node_put
Libo Chen [Sat, 4 Jan 2014 08:00:30 +0000 (00:00 -0800)]
Input: twl6040-vibra - add missing of_node_put

We should drop reference to twl6040_core_node device_node once we are done
using it.

Signed-off-by: Libo Chen <libo.chen@huawei.com>
Acked-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
10 years agoInput: twl4030-vibra - add missing of_node_put
Libo Chen [Sat, 4 Jan 2014 07:58:32 +0000 (23:58 -0800)]
Input: twl4030-vibra - add missing of_node_put

We should drop reference to twl6040_core_node device_node once we are done
using it.

Signed-off-by: Libo Chen <libo.chen@huawei.com>
Acked-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
10 years agoInput: i8042 - cleanup SERIO_I8042 dependencies
Mark Salter [Wed, 1 Jan 2014 19:34:39 +0000 (11:34 -0800)]
Input: i8042 - cleanup SERIO_I8042 dependencies

Remove messy dependencies from SERIO_I8042 by having it depend on one
Kconfig symbol (ARCH_MIGHT_HAVE_PC_SERIO) and having architectures
which need it select ARCH_MIGHT_HAVE_PC_SERIO in arch/*/Kconfig.
New architectures are unlikely to need SERIO_I8042, so this avoids
having an ever growing list of architectures to exclude.

Signed-off-by: Mark Salter <msalter@redhat.com>
Acked-by: "H. Peter Anvin" <hpa@zytor.com>
Acked-by: Ralf Baechle <ralf@linux-mips.org>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
10 years agoInput: i8042 - select ARCH_MIGHT_HAVE_PC_SERIO on x86
Mark Salter [Wed, 1 Jan 2014 19:34:16 +0000 (11:34 -0800)]
Input: i8042 - select ARCH_MIGHT_HAVE_PC_SERIO on x86

Architectures which might use an i8042 for serial IO to keyboard,
mouse, etc should select ARCH_MIGHT_HAVE_PC_SERIO.

Signed-off-by: Mark Salter <msalter@redhat.com>
Acked-by: "H. Peter Anvin" <hpa@zytor.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
10 years agoInput: i8042 - select ARCH_MIGHT_HAVE_PC_SERIO on unicore32
Mark Salter [Wed, 1 Jan 2014 19:33:53 +0000 (11:33 -0800)]
Input: i8042 - select ARCH_MIGHT_HAVE_PC_SERIO on unicore32

Architectures which might use an i8042 for serial IO to keyboard,
mouse, etc should select ARCH_MIGHT_HAVE_PC_SERIO.

Signed-off-by: Mark Salter <msalter@redhat.com>
Acked-by: Guan Xuetao <gxt@mprc.pku.edu.cn>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
10 years agoInput: i8042 - select ARCH_MIGHT_HAVE_PC_SERIO on sparc
Mark Salter [Wed, 1 Jan 2014 19:33:21 +0000 (11:33 -0800)]
Input: i8042 - select ARCH_MIGHT_HAVE_PC_SERIO on sparc

Architectures which might use an i8042 for serial IO to keyboard,
mouse, etc should select ARCH_MIGHT_HAVE_PC_SERIO.

Signed-off-by: Mark Salter <msalter@redhat.com>
Acked-by: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
10 years agoInput: i8042 - select ARCH_MIGHT_HAVE_PC_SERIO for SH_CAYMAN
Mark Salter [Wed, 1 Jan 2014 19:32:52 +0000 (11:32 -0800)]
Input: i8042 - select ARCH_MIGHT_HAVE_PC_SERIO for SH_CAYMAN

Architectures which might use an i8042 for serial IO to keyboard,
mouse, etc should select ARCH_MIGHT_HAVE_PC_SERIO. Cayman board
is only sh board which needs this.

Signed-off-by: Mark Salter <msalter@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
10 years agoInput: i8042 - select ARCH_MIGHT_HAVE_PC_SERIO on powerpc
Mark Salter [Wed, 1 Jan 2014 19:32:26 +0000 (11:32 -0800)]
Input: i8042 - select ARCH_MIGHT_HAVE_PC_SERIO on powerpc

Architectures which might use an i8042 for serial IO to keyboard,
mouse, etc should select ARCH_MIGHT_HAVE_PC_SERIO.

Signed-off-by: Mark Salter <msalter@redhat.com>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
10 years agoInput: i8042 - select ARCH_MIGHT_HAVE_PC_SERIO on mips
Mark Salter [Wed, 1 Jan 2014 19:32:00 +0000 (11:32 -0800)]
Input: i8042 - select ARCH_MIGHT_HAVE_PC_SERIO on mips

Architectures which might use an i8042 for serial IO to keyboard,
mouse, etc should select ARCH_MIGHT_HAVE_PC_SERIO.

Signed-off-by: Mark Salter <msalter@redhat.com>
Acked-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
10 years agoInput: i8042 - select ARCH_MIGHT_HAVE_PC_SERIO on IA64
Mark Salter [Wed, 1 Jan 2014 19:31:12 +0000 (11:31 -0800)]
Input: i8042 - select ARCH_MIGHT_HAVE_PC_SERIO on IA64

Architectures which might use an i8042 for serial IO to keyboard,
mouse, etc should select ARCH_MIGHT_HAVE_PC_SERIO.

Signed-off-by: Mark Salter <msalter@redhat.com>
Acked-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
10 years agoInput: i8042 - select ARCH_MIGHT_HAVE_PC_SERIO on ARM/Footbridge
Mark Salter [Wed, 1 Jan 2014 19:28:54 +0000 (11:28 -0800)]
Input: i8042 - select ARCH_MIGHT_HAVE_PC_SERIO on ARM/Footbridge

Architectures which might use an i8042 for serial IO to keyboard,
mouse, etc should select ARCH_MIGHT_HAVE_PC_SERIO.

Signed-off-by: Mark Salter <msalter@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
10 years agoInput: i8042 - select ARCH_MIGHT_HAVE_PC_SERIO on alpha
Mark Salter [Wed, 1 Jan 2014 19:27:31 +0000 (11:27 -0800)]
Input: i8042 - select ARCH_MIGHT_HAVE_PC_SERIO on alpha

Architectures which might use an i8042 for serial IO to keyboard,
mouse, etc should select ARCH_MIGHT_HAVE_PC_SERIO.

Signed-off-by: Mark Salter <msalter@redhat.com>
Acked-by: Matt Turner <mattst88@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
10 years agoInput: cros_ec_keyb - fix problems with backslash
Doug Anderson [Mon, 30 Dec 2013 00:52:46 +0000 (16:52 -0800)]
Input: cros_ec_keyb - fix problems with backslash

The driver can't deal with two entries its keymap having the same keycode.
When this happens it will get confused about whether the key is down or up
and will cause some screwy behavior.

We need to have two entries for KEY_BACKSLASH to handle US and UK
keyboards. Specifically:
* On the US keyboard the backslash key (above enter) is r3 c11 and is
  supposed to be reported as BACKSLASH.
* On the UK keyboard the # key (left of enter) is r4 c10 and is
  supposed to be reported as BACKSLASH.
* On the UK keyboard the \ key (left of Z) is r2 c7 and is supposed to
  be reported as KEY_102ND.

Note that both keyboards (US and UK) have only one physical backslash
key so the constraint that each physical key should have its own keycode
still stands.

Signed-off-by: Doug Anderson <dianders@chromium.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
10 years agoInput: keypad-omap - cleanup header file
Sachin Kamat [Sat, 28 Dec 2013 01:13:45 +0000 (17:13 -0800)]
Input: keypad-omap - cleanup header file

Commit 2203747c9771 ("ARM: omap: move platform_data definitions")
moved the file to the current location but forgot to remove the pointer
to its previous location. Clean it up. While at it also change the header
file protection macros appropriately.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
10 years agoInput: keypad-ep93xx - cleanup header file
Sachin Kamat [Sat, 28 Dec 2013 01:13:17 +0000 (17:13 -0800)]
Input: keypad-ep93xx - cleanup header file

Commit a3b2924547a7 ("ARM: ep93xx: move platform_data definitions")
moved the file to the current location but forgot to remove the pointer
to its previous location. Clean it up. While at it also change the header
file protection macros appropriately.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
10 years agoInput: pmic8xxx-pwrkey - switch to using managed resources
Dmitry Torokhov [Sun, 15 Dec 2013 11:28:26 +0000 (03:28 -0800)]
Input: pmic8xxx-pwrkey - switch to using managed resources

This simplifies error handling and device removal paths.

Acked-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
10 years agoInput: pmic8xxx-pwrkey - pass correct device identity to free_irq()
Wei Yongjun [Tue, 17 Dec 2013 17:03:05 +0000 (09:03 -0800)]
Input: pmic8xxx-pwrkey - pass correct device identity to free_irq()

free_irq() in the error handling case is missing when change
pass input device directly to interrupt.

Fixes: b27f8fee4965('Input: pmic8xxx-pwrkey - pass input device directly to interrupt')

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
10 years agoInput: ALPS - add support for "Dolphin" devices
Yunkang Tang [Thu, 26 Dec 2013 22:54:19 +0000 (14:54 -0800)]
Input: ALPS - add support for "Dolphin" devices

This adds support for another flavor of ALPS protocol used in newer
"Dolphin" devices.

Signed-off-by: Yunkang Tang <yunkang.tang@cn.alps.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
10 years agoInput: fix typos in Documentation/input/gamepad.txt
Antonio Ospite [Wed, 18 Dec 2013 16:39:10 +0000 (08:39 -0800)]
Input: fix typos in Documentation/input/gamepad.txt

Fix some typos and while at it also use "PS" as the name for the central
"HOME" button on Sony controllers, this is how Sony itself calls it.

Reviewed-by: David Herrmann <dh.herrmann@gmail.com>
Signed-off-by: Antonio Ospite <ospite@studenti.unina.it>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
10 years agoInput: zforce - fix error return code in zforce_start()
Wei Yongjun [Tue, 17 Dec 2013 16:58:18 +0000 (08:58 -0800)]
Input: zforce - fix error return code in zforce_start()

The error code was not set if unable to set config, so the error
condition wasn't reflected in the return value. Fix to return a
negative error code from the error handling case instead of 0.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Acked-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
10 years agoInput: elantech - improve clickpad detection
Hans de Goede [Mon, 16 Dec 2013 15:09:25 +0000 (07:09 -0800)]
Input: elantech -  improve clickpad detection

The current assumption in the elantech driver that hw version 3 touchpads
are never clickpads and hw version 4 touchpads are always clickpads is
wrong.

There are several bug reports for this, ie:
https://bugzilla.redhat.com/show_bug.cgi?id=1030802
http://superuser.com/questions/619582/right-elantech-touchpad-button-not-working-in-linux

I've spend a couple of hours wading through various bugzillas, launchpads
and forum posts to create a list of fw-versions and capabilities for
different laptop models to find a good method to differentiate between
clickpads and versions with separate hardware buttons.

Which shows that a device being a clickpad is reliable indicated by bit 12
being set in the fw_version. I've included the gathered list inside the
driver, so that we've this info at hand if we need to revisit this later.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
10 years agoInput: don't call input_dev_release_keys() in resume
Aleksej Makarov [Sat, 23 Nov 2013 18:20:36 +0000 (10:20 -0800)]
Input: don't call input_dev_release_keys() in resume

When waking up the platform by pressing a specific key, sending a
release on that key makes it impossible to react on the event in
user-space. This is fixed by moving the input_reset_device() call to
resume instead.

[dmitry.torokhov@gmail.com: make sure we still restore LED/sound state
after resume, handle hibernation properly]

Signed-off-by: Aleksej Makarov <aleksej.makarov@sonymobile.com>
Signed-off-by: Oskar Andero <oskar.andero@sonymobile.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
10 years agoInput: joystick - use sizeof(VARIABLE) in documentation
Antonio Ospite [Mon, 16 Dec 2013 09:52:17 +0000 (01:52 -0800)]
Input: joystick - use sizeof(VARIABLE) in documentation

Use the preferred style sizeof(VARIABLE) instead of sizeof(TYPE) in the
joystick API documentation, Documentation/CodingStyle states that this
is the preferred style for allocations but using it elsewhere is good
too.

Also fix some errors like "sizeof(struct mybuffer)" which didn't mean
anything.

Signed-off-by: Antonio Ospite <ospite@studenti.unina.it>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
10 years agoInput: joystick - refer to /dev/input/js0 in documentation
Antonio Ospite [Mon, 16 Dec 2013 09:51:47 +0000 (01:51 -0800)]
Input: joystick - refer to /dev/input/js0 in documentation

Nowadays the joystick device nodes are created under /dev/input, reflect
this in the documentation in order to make copy and paste easier for
users.

Signed-off-by: Antonio Ospite <ospite@studenti.unina.it>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
10 years agoInput: ads7846 - convert to hwmon_device_register_with_groups()
Guenter Roeck [Thu, 28 Nov 2013 04:08:33 +0000 (20:08 -0800)]
Input: ads7846 - convert to hwmon_device_register_with_groups()

Simplify the code and create mandatory 'name' attribute by using
new hwmon API.

Also use is_visible to determine visible attributes instead of creating
several different attribute groups.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
10 years agoInput: wacom - add reporting of SW_MUTE_DEVICE events
Ping Cheng [Thu, 5 Dec 2013 20:54:53 +0000 (12:54 -0800)]
Input: wacom - add reporting of SW_MUTE_DEVICE events

New Intuos series models added a hardware switch to turn touch
data on/off. The state of the switch is reported periodically
from the tablet. To report the state the driver will emit SW_MUTE_DEVICE
events.

Reviewed_by: Chris Bagwell <chris@cnpbagwell.com>
Acked-by: Peter Hutterer <peter.hutterer@who-t.net>
Tested-by: Jason Gerecke <killertofu@gmail.com>
Signed-off-by: Ping Cheng <pingc@wacom.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
10 years agoMerge tag 'v3.13-rc4' into next
Dmitry Torokhov [Mon, 16 Dec 2013 10:04:49 +0000 (02:04 -0800)]
Merge tag 'v3.13-rc4' into next

Synchronize with mainline to bring in the new keycode definitions and
new hwmon API.

10 years agoLinux 3.13-rc4
Linus Torvalds [Sun, 15 Dec 2013 20:31:33 +0000 (12:31 -0800)]
Linux 3.13-rc4

10 years agonull_blk: mem garbage on NUMA systems during init
Matias Bjorling [Tue, 10 Dec 2013 15:50:38 +0000 (16:50 +0100)]
null_blk: mem garbage on NUMA systems during init

For NUMA systems, initializing the blk-mq layer and using per node hctx.
We initialize submit queues to 1, while blk-mq nr_hw_queues is
initialized to the number of NUMA nodes.

This makes the null_init_hctx function overwrite memory outside of what
it allocated.  In my case it lead to writing garbage into struct
request_queue's mq_map.

Signed-off-by: Matias Bjorling <m@bjorling.me>
Cc: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agoradeon_pm: fix oops in hwmon_attributes_visible() and radeon_hwmon_show_temp_thresh()
Sergey Senozhatsky [Thu, 12 Dec 2013 23:25:57 +0000 (02:25 +0300)]
radeon_pm: fix oops in hwmon_attributes_visible() and radeon_hwmon_show_temp_thresh()

Since commit ec39f64bba34 ("drm/radeon/dpm: Convert to use
devm_hwmon_register_with_groups") radeon_hwmon_init() is using
hwmon_device_register_with_groups(), which sets `rdev' as a device
private driver_data, while hwmon_attributes_visible() and
radeon_hwmon_show_temp_thresh() are still waiting for `drm_device'.

Fix them by using dev_get_drvdata(), in order to avoid this oops:

  BUG: unable to handle kernel paging request at 0000000000001e28
  IP: [<ffffffffa02ae8b4>] hwmon_attributes_visible+0x18/0x3d [radeon]
  PGD 15057e067 PUD 151a8e067 PMD 0
  Oops: 0000 [#1] PREEMPT SMP
  Call Trace:
    internal_create_group+0x114/0x1d9
    sysfs_create_group+0xe/0x10
    sysfs_create_groups+0x22/0x5f
    device_add+0x34f/0x501
    device_register+0x15/0x18
    hwmon_device_register_with_groups+0xb5/0xed
    radeon_hwmon_init+0x56/0x7c [radeon]
    radeon_pm_init+0x134/0x7e5 [radeon]
    radeon_modeset_init+0x75f/0x8ed [radeon]
    radeon_driver_load_kms+0xc6/0x187 [radeon]
    drm_dev_register+0xf9/0x1b4 [drm]
    drm_get_pci_dev+0x98/0x129 [drm]
    radeon_pci_probe+0xa3/0xac [radeon]
    pci_device_probe+0x6e/0xcf
    driver_probe_device+0x98/0x1c4
    __driver_attach+0x5c/0x7e
    bus_for_each_dev+0x7b/0x85
    driver_attach+0x19/0x1b
    bus_add_driver+0x104/0x1ce
    driver_register+0x89/0xc5
    __pci_register_driver+0x58/0x5b
    drm_pci_init+0x86/0xea [drm]
    radeon_init+0x97/0x1000 [radeon]
    do_one_initcall+0x7f/0x117
    load_module+0x1583/0x1bb4
    SyS_init_module+0xa0/0xaf

Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Alexander Deucher <Alexander.Deucher@amd.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Linus Torvalds [Sun, 15 Dec 2013 19:56:47 +0000 (11:56 -0800)]
Merge git://git./linux/kernel/git/davem/net

Pull networking fixes from David Miller:

 1) Revert CHECKSUM_COMPLETE optimization in pskb_trim_rcsum(), I can't
    figure out why it breaks things.

 2) Fix comparison in netfilter ipset's hash_netnet4_data_equal(), it
    was basically doing "x == x", from Dave Jones.

 3) Freescale FEC driver was DMA mapping the wrong number of bytes, from
    Sebastian Siewior.

 4) Blackhole and prohibit routes in ipv6 were not doing the right thing
    because their ->input and ->output methods were not being assigned
    correctly.  Now they behave properly like their ipv4 counterparts.
    From Kamala R.

 5) Several drivers advertise the NETIF_F_FRAGLIST capability, but
    really do not support this feature and will send garbage packets if
    fed fraglist SKBs.  From Eric Dumazet.

 6) Fix long standing user triggerable BUG_ON over loopback in RDS
    protocol stack, from Venkat Venkatsubra.

 7) Several not so common code paths can potentially try to invoke
    packet scheduler actions that might be NULL without checking.  Shore
    things up by either 1) defining a method as mandatory and erroring
    on registration if that method is NULL 2) defininig a method as
    optional and the registration function hooks up a default
    implementation when NULL is seen.  From Jamal Hadi Salim.

 8) Fix fragment detection in xen-natback driver, from Paul Durrant.

 9) Kill dangling enter_memory_pressure method in cg_proto ops, from
    Eric W Biederman.

10) SKBs that traverse namespaces should have their local_df cleared,
    from Hannes Frederic Sowa.

11) IOCB file position is not being updated by macvtap_aio_read() and
    tun_chr_aio_read().  From Zhi Yong Wu.

12) Don't free virtio_net netdev before releasing all of the NAPI
    instances.  From Andrey Vagin.

13) Procfs entry leak in xt_hashlimit, from Sergey Popovich.

14) IPv6 routes that are no cached routes should not count against the
    garbage collection limits.  We had this almost right, but were
    missing handling addrconf generated routes properly.  From Hannes
    Frederic Sowa.

15) fib{4,6}_rule_suppress() have to consider potentially seeing NULL
    route info when they are called, from Stefan Tomanek.

16) TUN and MACVTAP have had truncated packet signalling for some time,
    fix from Jason Wang.

17) Fix use after frrr in __udp4_lib_rcv(), from Eric Dumazet.

18) xen-netback does not interpret the NAPI budget properly for TX work,
    fix from Paul Durrant.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (132 commits)
  igb: Fix for issue where values could be too high for udelay function.
  i40e: fix null dereference
  xen-netback: fix gso_prefix check
  net: make neigh_priv_len in struct net_device 16bit instead of 8bit
  drivers: net: cpsw: fix for cpsw crash when build as modules
  xen-netback: napi: don't prematurely request a tx event
  xen-netback: napi: fix abuse of budget
  sch_tbf: use do_div() for 64-bit divide
  udp: ipv4: must add synchronization in udp_sk_rx_dst_set()
  net:fec: remove duplicate lines in comment about errata ERR006358
  Revert "8390 : Replace ei_debug with msg_enable/NETIF_MSG_* feature"
  8390 : Replace ei_debug with msg_enable/NETIF_MSG_* feature
  xen-netback: make sure skb linear area covers checksum field
  net: smc91x: Fix device tree based configuration so it's usable
  udp: ipv4: fix potential use after free in udp_v4_early_demux()
  macvtap: signal truncated packets
  tun: unbreak truncated packet signalling
  net: sched: htb: fix the calculation of quantum
  net: sched: tbf: fix the calculation of max_size
  micrel: add support for KSZ8041RNLI
  ...

10 years agoMerge branch 'x86/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Linus Torvalds [Sun, 15 Dec 2013 19:52:47 +0000 (11:52 -0800)]
Merge branch 'x86/urgent' of git://git./linux/kernel/git/tip/tip

Pull x86 fixes from Peter Anvin:
 "This is a pretty small batch:

  The biggest single change is to stop using EFI time services on 32-bit
  platforms.  This matches our current behavior on 64-bit platforms as
  we already had ruled them out there as being too unreliable.  Turns
  out that affects 32-bit platforms, too.

  One NULL pointer fix for SGI UV.

  Two minor build fixes, one of which only affects icc and the other
  which affects icc and future versions or nonstandard default settings
  of gcc"

* 'x86/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86, efi: Don't use (U)EFI time services on 32 bit
  x86, build, icc: Remove uninitialized_var() from compiler-intel.h
  x86/UV: Fix NULL pointer dereference in uv_flush_tlb_others() if the 'nobau' boot option is used
  x86, build: Pass in additional -mno-mmx, -mno-sse options

10 years agoMerge tag 'pci-v3.13-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaa...
Linus Torvalds [Sun, 15 Dec 2013 19:45:27 +0000 (11:45 -0800)]
Merge tag 'pci-v3.13-fixes-2' of git://git./linux/kernel/git/helgaas/pci

Pull PCI updates from Bjorn Helgaas:
 "PCI device hotplug
    - Move device_del() from pci_stop_dev() to pci_destroy_dev() (Rafael
      Wysocki)

  Host bridge drivers
    - Update maintainers for DesignWare, i.MX6, Armada, R-Car (Bjorn
      Helgaas)
    - mvebu: Return 'unsupported' for Interrupt Line and Interrupt Pin
      (Jason Gunthorpe)

  Miscellaneous
    - Avoid unnecessary CPU switch when calling .probe() (Alexander
      Duyck)
    - Revert "workqueue: allow work_on_cpu() to be called recursively"
      (Bjorn Helgaas)
    - Disable Bus Master only on kexec reboot (Khalid Aziz)
    - Omit PCI ID macro strings to shorten quirk names for LTO (Michal
      Marek)"

* tag 'pci-v3.13-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
  MAINTAINERS: Add DesignWare, i.MX6, Armada, R-Car PCI host maintainers
  PCI: Disable Bus Master only on kexec reboot
  PCI: mvebu: Return 'unsupported' for Interrupt Line and Interrupt Pin
  PCI: Omit PCI ID macro strings to shorten quirk names
  PCI: Move device_del() from pci_stop_dev() to pci_destroy_dev()
  Revert "workqueue: allow work_on_cpu() to be called recursively"
  PCI: Avoid unnecessary CPU switch when calling driver .probe() method

10 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris...
Linus Torvalds [Sun, 15 Dec 2013 19:28:02 +0000 (11:28 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/jmorris/linux-security

Pull SELinux fixes from James Morris.

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security:
  selinux: process labeled IPsec TCP SYN-ACK packets properly in selinux_ip_postroute()
  selinux: look for IPsec labels on both inbound and outbound packets
  selinux: handle TCP SYN-ACK packets correctly in selinux_ip_postroute()
  selinux: handle TCP SYN-ACK packets correctly in selinux_ip_output()
  selinux: fix possible memory leak

10 years agoRevert "selinux: consider filesystem subtype in policies"
Linus Torvalds [Sun, 15 Dec 2013 19:17:45 +0000 (11:17 -0800)]
Revert "selinux: consider filesystem subtype in policies"

This reverts commit 102aefdda4d8275ce7d7100bc16c88c74272b260.

Tom London reports that it causes sync() to hang on Fedora rawhide:

  https://bugzilla.redhat.com/show_bug.cgi?id=1033965

and Josh Boyer bisected it down to this commit.  Reverting the commit in
the rawhide kernel fixes the problem.

Eric Paris root-caused it to incorrect subtype matching in that commit
breaking fuse, and has a tentative patch, but by now we're better off
retrying this in 3.14 rather than playing with it any more.

Reported-by: Tom London <selinux@gmail.com>
Bisected-by: Josh Boyer <jwboyer@fedoraproject.org>
Acked-by: Eric Paris <eparis@redhat.com>
Cc: James Morris <jmorris@namei.org>
Cc: Anand Avati <avati@redhat.com>
Cc: Paul Moore <paul@paul-moore.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agoInput: pmic8xxx-pwrkey - migrate to regmap APIs
Stephen Boyd [Sun, 15 Dec 2013 11:24:45 +0000 (03:24 -0800)]
Input: pmic8xxx-pwrkey - migrate to regmap APIs

Use the regmap APIs for this driver instead of custom pm8xxx
APIs. This breaks this driver's dependency on the pm8xxx APIs and
allows us to easily port it to other bus protocols in the future.

Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
10 years agoInput: pmic8xxx-pwrkey - pass input device directly to interrupt
Stephen Boyd [Sun, 15 Dec 2013 11:14:47 +0000 (03:14 -0800)]
Input: pmic8xxx-pwrkey - pass input device directly to interrupt

Instead of passing the pointer to the container structure just
pass the input device here. This saves a dereference in the fast
path.

Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
10 years agoInput: pm8xxx-vibrator - migrate to regmap APIs
Stephen Boyd [Sun, 15 Dec 2013 11:46:21 +0000 (03:46 -0800)]
Input: pm8xxx-vibrator - migrate to regmap APIs

Use the regmap APIs for this driver instead of custom pm8xxx
APIs. This breaks this driver's dependency on the pm8xxx APIs and
allows us to easily port it to other bus protocols in the future.

Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
10 years agoInput: pm8xxx-vibrator - switch to using managed resources
Stephen Boyd [Sun, 15 Dec 2013 11:43:06 +0000 (03:43 -0800)]
Input: pm8xxx-vibrator - switch to using managed resources

Simplify the error paths and reduce the lines of code in this
driver by using the devm_* APIs.

Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
10 years agoInput: cyttsp - include appropriate header file in cyttsp_i2c_common.c
Rashika Kheria [Sun, 15 Dec 2013 10:25:55 +0000 (02:25 -0800)]
Input: cyttsp - include appropriate header file in cyttsp_i2c_common.c

Include cyttsp4_core.h in cyttsp_i2c_common.c to ensure that implementation
of cyttsp_i2c_read_block_data() and cyttsp_i2c_write_block_data()
match what the rest of the driver expects.

Thus, it also eliminates the following warning in cyttsp_i2c_common.c:
drivers/input/touchscreen/cyttsp_i2c_common.c:34:5: warning: no previous prototype for ‘cyttsp_i2c_read_block_data’ [-Wmissing-prototypes]
drivers/input/touchscreen/cyttsp_i2c_common.c:64:5: warning: no previous prototype for ‘cyttsp_i2c_write_block_data’ [-Wmissing-prototypes]

Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
10 years agoigb: Fix for issue where values could be too high for udelay function.
Carolyn Wyborny [Sat, 14 Dec 2013 11:26:46 +0000 (03:26 -0800)]
igb: Fix for issue where values could be too high for udelay function.

This patch changes the igb_phy_has_link function to check the value of the
parameter before deciding to use udelay or mdelay in order to be sure that
the value is not too high for udelay function.

CC: stable kernel <stable@vger.kernel.org> # 3.9+
Signed-off-by: Sunil K Pandey <sunil.k.pandey@intel.com>
Signed-off-by: Kevin B Smith <kevin.b.smith@intel.com>
Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agoi40e: fix null dereference
Jesse Brandeburg [Sat, 14 Dec 2013 11:26:45 +0000 (03:26 -0800)]
i40e: fix null dereference

If the vsi->tx_rings structure is NULL we don't want to panic.

Change-Id: Ic694f043701738c434e8ebe0caf0673f4410dc10
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agoMerge tag 'edac_fixes_for_3.13' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Sat, 14 Dec 2013 17:37:17 +0000 (09:37 -0800)]
Merge tag 'edac_fixes_for_3.13' of git://git./linux/kernel/git/bp/bp

Pull EDAC fix from Borislav Petkov:
 "Silence a compiler warning in sb_edac"

* tag 'edac_fixes_for_3.13' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp:
  sb_edac: Shut up compiler warning when EDAC_DEBUG is enabled

10 years agoMerge branch 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm
Linus Torvalds [Sat, 14 Dec 2013 00:16:03 +0000 (16:16 -0800)]
Merge branch 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm

Pull ARM fixes from Russell King:
 "This resolves some further issues with the dma mask changes on ARM
  which have been found by TI and others, and also some corner cases
  with the updates to the virtual to physical address translations.

  Konstantin also found some problems with the unwinder, which now
  performs tighter verification that the stack is valid while unwinding"

* 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm:
  ARM: fix asm/memory.h build error
  ARM: 7917/1: cacheflush: correctly limit range of memory region being flushed
  ARM: 7913/1: fix framepointer check in unwind_frame
  ARM: 7912/1: check stack pointer in get_wchan
  ARM: 7909/1: mm: Call setup_dma_zone() post early_paging_init()
  ARM: 7908/1: mm: Fix the arm_dma_limit calculation
  ARM: another fix for the DMA mapping checks

10 years agoMerge tag 'arc-fixes-for-3.13' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupt...
Linus Torvalds [Sat, 14 Dec 2013 00:14:39 +0000 (16:14 -0800)]
Merge tag 'arc-fixes-for-3.13' of git://git./linux/kernel/git/vgupta/arc

Pull ARC fixes from Vineet Gupta:
 "These are couple of weeks old already, but I just couldn't get them to
  you earlier.

   - couple of fixes for recently added perf code
   - build time extable sort"

* tag 'arc-fixes-for-3.13' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc:
  ARC: [perf] Fix a few thinkos
  ARC: Add guard macro to uapi/asm/unistd.h
  ARC: extable: Enable sorting at build time

10 years agoMerge tag 'dm-3.13-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/device...
Linus Torvalds [Fri, 13 Dec 2013 21:22:22 +0000 (13:22 -0800)]
Merge tag 'dm-3.13-fixes' of git://git./linux/kernel/git/device-mapper/linux-dm

Pull device mapper fixes from Mike Snitzer:
 "A set of device-mapper fixes for 3.13.

  A fix for possible memory corruption during DM table load, fix a
  possible leak of snapshot space in case of a crash, fix a possible
  deadlock due to a shared workqueue in the delay target, fix to
  initialize read-only module parameters that are used to export metrics
  for dm stats and dm bufio.

  Quite a few stable fixes were identified for both the thin-
  provisioning and caching targets as a result of increased regression
  testing using the device-mapper-test-suite (dmts).  The most notable
  of these are the reference counting fixes for the space map btree that
  is used by the dm-array interface -- without these the dm-cache
  metadata will leak, resulting in dm-cache devices running out of
  metadata blocks.  Also, some important fixes related to the
  thin-provisioning target's transition to read-only mode on error"

* tag 'dm-3.13-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
  dm array: fix a reference counting bug in shadow_ablock
  dm space map: disallow decrementing a reference count below zero
  dm stats: initialize read-only module parameter
  dm bufio: initialize read-only module parameters
  dm cache: actually resize cache
  dm cache: update Documentation for invalidate_cblocks's range syntax
  dm cache policy mq: fix promotions to occur as expected
  dm thin: allow pool in read-only mode to transition to read-write mode
  dm thin: re-establish read-only state when switching to fail mode
  dm thin: always fallback the pool mode if commit fails
  dm thin: switch to read-only mode if metadata space is exhausted
  dm thin: switch to read only mode if a mapping insert fails
  dm space map metadata: return on failure in sm_metadata_new_block
  dm table: fail dm_table_create on dm_round_up overflow
  dm snapshot: avoid snapshot space leak on crash
  dm delay: fix a possible deadlock due to shared workqueue

10 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid
Linus Torvalds [Fri, 13 Dec 2013 21:21:28 +0000 (13:21 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/jikos/hid

Pull HID fixes from Jiri Kosina:

 - Genius Gx Imperator Keyboard regression fix (missing break in case),
   by Ben Hutchings

 - duplicate sysfs entry error fix for hid-sensor-hub driver, by
   Srinivas Pandruvada

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid:
  HID: hid-sensor-hub: fix duplicate sysfs entry error
  HID: kye: Fix missing break in kye_report_fixup()

10 years agoARM: fix asm/memory.h build error
Russell King [Tue, 10 Dec 2013 19:21:08 +0000 (19:21 +0000)]
ARM: fix asm/memory.h build error

Jason Gunthorpe reports a build failure when ARM_PATCH_PHYS_VIRT is
not defined:

In file included from arch/arm/include/asm/page.h:163:0,
                 from include/linux/mm_types.h:16,
                 from include/linux/sched.h:24,
                 from arch/arm/kernel/asm-offsets.c:13:
arch/arm/include/asm/memory.h: In function '__virt_to_phys':
arch/arm/include/asm/memory.h:244:40: error: 'PHYS_OFFSET' undeclared (first use in this function)
arch/arm/include/asm/memory.h:244:40: note: each undeclared identifier is reported only once for each function it appears in
arch/arm/include/asm/memory.h: In function '__phys_to_virt':
arch/arm/include/asm/memory.h:249:13: error: 'PHYS_OFFSET' undeclared (first use in this function)

Fixes: ca5a45c06cd4 ("ARM: mm: use phys_addr_t appropriately in p2v and v2p conversions")
Tested-By: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
10 years agoMerge tag 'regulator-v3.13-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Fri, 13 Dec 2013 19:39:54 +0000 (11:39 -0800)]
Merge tag 'regulator-v3.13-rc3' of git://git./linux/kernel/git/broonie/regulator

Pull regulator fixes from Mark Brown:
 "A small set of driver fixes plus one larger core change which changes
  the way we check to see if we're using DT so that there aren't any
  races between deciding we're using DT and the regulator subsystem
  noticing.

  This makes the new support for substituting a dummy regulator and
  optional regulators work a lot better on DT systems since it ensures
  that we don't trigger probe deferral when we shouldn't which was
  causing bugs in clients"

* tag 'regulator-v3.13-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator:
  regulator: pfuze100: allow misprogrammed ID
  regulator: pfuze100: Fix address of FABID
  regulator: as3722: set the correct current limit
  regulator: core: Check for DT every time we check full constraints
  regulator: core: Replace checks of have_full_constraints with a function

10 years agoMerge tag 'regmap-v3.13-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie...
Linus Torvalds [Fri, 13 Dec 2013 19:38:35 +0000 (11:38 -0800)]
Merge tag 'regmap-v3.13-rc3' of git://git./linux/kernel/git/broonie/regmap

Pull regmap fixes from Mark Brown:
 "Two small changes to fix some error handling and checking (both of
  which would be quite serious if the errors trigger) plus a trivial
  documentation fix"

* tag 'regmap-v3.13-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap:
  regmap: use IS_ERR() to check clk_get() results
  regmap: make sure we unlock on failure in regmap_bulk_write
  regmap: trivial comment fix (copy'n'paste error)

10 years agoMerge branch 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa...
Linus Torvalds [Fri, 13 Dec 2013 19:37:57 +0000 (11:37 -0800)]
Merge branch 'i2c/for-current' of git://git./linux/kernel/git/wsa/linux

Pull i2c fixes from Wolfram Sang:
 "Here are two simple but wanted fixes for the i2c subsystem"

* 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
  i2c: imx: Check the return value from clk_prepare_enable()
  i2c: mux: Inherit retry count and timeout from parent for muxed bus

10 years agoMerge tag 'for-linus-20131212' of git://git.infradead.org/linux-mtd
Linus Torvalds [Fri, 13 Dec 2013 19:31:22 +0000 (11:31 -0800)]
Merge tag 'for-linus-20131212' of git://git.infradead.org/linux-mtd

Pull MTD fixes from Brian Norris:
 "Two MTD fixes, for the pxa3xx-nand driver:

   - This driver was not ready to fully Armada 370 NAND, with
     particularly notable problems seen on flash with 2KB page sizes.
     This "compatible" entry really should have been held back until
     3.14 or later.

   - Fix a bug seen in rare cases on the error path of a failed probe
     attempt, where we free unallocated DMA resources"

* tag 'for-linus-20131212' of git://git.infradead.org/linux-mtd:
  mtd: nand: pxa3xx: Use info->use_dma to release DMA resources
  Partially revert "mtd: nand: pxa3xx: Introduce 'marvell,armada370-nand' compatible string"

10 years agoMerge branch 'fixes' of git://git.infradead.org/users/vkoul/slave-dma
Linus Torvalds [Fri, 13 Dec 2013 19:29:51 +0000 (11:29 -0800)]
Merge branch 'fixes' of git://git.infradead.org/users/vkoul/slave-dma

Pull slave-dmaengine fixes from Vinod Koul:
 "Here is the common fixes PULL for dmaengine.

  Dan has been working on fixing the build issues in bunch of drivers.
  Here we have one fixing s3c24xx-dma, along with fix from Russell on
  pl08x.  Also we have Kuninori rcar dma fixes.  The s3c24xx-dma which
  was added in last merge window missed updates to usage of DMA_COMPLETE
  so converting the last driver"

* 'fixes' of git://git.infradead.org/users/vkoul/slave-dma:
  dma: fix build breakage in s3c24xx-dma
  Fix pl08x warnings
  rcar-hpbdma: initialise plane information when halted
  rcar-hpbdma: fixup channel busy check for double plane
  rcar-hpbdma: add max transfer size
  dma: mmp_pdma: add missing platform_set_drvdata() in mmp_pdma_probe()
  dmaengine: s3c24xx-dma: use DMA_COMPLETE for dma completion status

10 years agodm array: fix a reference counting bug in shadow_ablock
Joe Thornber [Fri, 13 Dec 2013 14:55:55 +0000 (14:55 +0000)]
dm array: fix a reference counting bug in shadow_ablock

An old array block could have its reference count decremented below
zero when it is being replaced in the btree by a new array block.

The fix is to increment the old ablock's reference count just before
inserting a new ablock into the btree.

Signed-off-by: Joe Thornber <ejt@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Cc: stable@vger.kernel.org # 3.9+
10 years agodm space map: disallow decrementing a reference count below zero
Joe Thornber [Fri, 13 Dec 2013 12:31:08 +0000 (12:31 +0000)]
dm space map: disallow decrementing a reference count below zero

The old behaviour, returning -EINVAL if a ref_count of 0 would be
decremented, was removed in commit f722063 ("dm space map: optimise
sm_ll_dec and sm_ll_inc").  To fix this regression we return an error
code from the mutator function pointer passed to sm_ll_mutate() and have
dec_ref_count() return -EINVAL if the old ref_count is 0.

Add a DMERR to reflect the potential seriousness of this error.

Also, add missing dm_tm_unlock() to sm_ll_mutate()'s error path.

With this fix the following dmts regression test now passes:
 dmtest run --suite cache -n /metadata_use_kernel/

The next patch fixes the higher-level dm-array code that exposed this
regression.

Signed-off-by: Joe Thornber <ejt@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Cc: stable@vger.kernel.org # 3.12+
10 years agoMerge remote-tracking branch 'regulator/topic/constraints' into regulator-linus
Mark Brown [Fri, 13 Dec 2013 13:44:57 +0000 (13:44 +0000)]
Merge remote-tracking branch 'regulator/topic/constraints' into regulator-linus

10 years agoMerge branch 'master' of git://git.infradead.org/users/pcmoore/selinux_fixes into...
James Morris [Fri, 13 Dec 2013 02:27:55 +0000 (13:27 +1100)]
Merge branch 'master' of git://git.infradead.org/users/pcmoore/selinux_fixes into for-linus

10 years agoMerge branch 'akpm' (fixes from Andrew)
Linus Torvalds [Fri, 13 Dec 2013 02:22:10 +0000 (18:22 -0800)]
Merge branch 'akpm' (fixes from Andrew)

Merge patches from Andrew Morton:
  "13 fixes"

* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
  mm: memcg: do not allow task about to OOM kill to bypass the limit
  mm: memcg: fix race condition between memcg teardown and swapin
  thp: move preallocated PTE page table on move_huge_pmd()
  mfd/rtc: s5m: fix register updating by adding regmap for RTC
  rtc: s5m: enable IRQ wake during suspend
  rtc: s5m: limit endless loop waiting for register update
  rtc: s5m: fix unsuccesful IRQ request during probe
  drivers/rtc/rtc-s5m.c: fix info->rtc assignment
  include/linux/kernel.h: make might_fault() a nop for !MMU
  drivers/rtc/rtc-at91rm9200.c: correct alarm over day/month wrap
  procfs: also fix proc_reg_get_unmapped_area() for !MMU case
  mm: memcg: do not declare OOM from __GFP_NOFAIL allocations
  include/linux/hugetlb.h: make isolate_huge_page() an inline

10 years agomm: memcg: do not allow task about to OOM kill to bypass the limit
Johannes Weiner [Fri, 13 Dec 2013 01:12:35 +0000 (17:12 -0800)]
mm: memcg: do not allow task about to OOM kill to bypass the limit

Commit 4942642080ea ("mm: memcg: handle non-error OOM situations more
gracefully") allowed tasks that already entered a memcg OOM condition to
bypass the memcg limit on subsequent allocation attempts hoping this
would expedite finishing the page fault and executing the kill.

David Rientjes is worried that this breaks memcg isolation guarantees
and since there is no evidence that the bypass actually speeds up fault
processing just change it so that these subsequent charge attempts fail
outright.  The notable exception being __GFP_NOFAIL charges which are
required to bypass the limit regardless.

Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Reported-by: David Rientjes <rientjes@google.com>
Acked-by: Michal Hocko <mhocko@suse.cz>
Acked-bt: David Rientjes <rientjes@google.com>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agomm: memcg: fix race condition between memcg teardown and swapin
Johannes Weiner [Fri, 13 Dec 2013 01:12:34 +0000 (17:12 -0800)]
mm: memcg: fix race condition between memcg teardown and swapin

There is a race condition between a memcg being torn down and a swapin
triggered from a different memcg of a page that was recorded to belong
to the exiting memcg on swapout (with CONFIG_MEMCG_SWAP extension).  The
result is unreclaimable pages pointing to dead memcgs, which can lead to
anything from endless loops in later memcg teardown (the page is charged
to all hierarchical parents but is not on any LRU list) or crashes from
following the dangling memcg pointer.

Memcgs with tasks in them can not be torn down and usually charges don't
show up in memcgs without tasks.  Swapin with the CONFIG_MEMCG_SWAP
extension is the notable exception because it charges the cgroup that
was recorded as owner during swapout, which may be empty and in the
process of being torn down when a task in another memcg triggers the
swapin:

  teardown:                 swapin:

                            lookup_swap_cgroup_id()
                            rcu_read_lock()
                            mem_cgroup_lookup()
                            css_tryget()
                            rcu_read_unlock()
  disable css_tryget()
  call_rcu()
    offline_css()
      reparent_charges()
                            res_counter_charge() (hierarchical!)
                            css_put()
                              css_free()
                            pc->mem_cgroup = dead memcg
                            add page to dead lru

Add a final reparenting step into css_free() to make sure any such raced
charges are moved out of the memcg before it's finally freed.

In the longer term it would be cleaner to have the css_tryget() and the
res_counter charge under the same RCU lock section so that the charge
reparenting is deferred until the last charge whose tryget succeeded is
visible.  But this will require more invasive changes that will be
harder to evaluate and backport into stable, so better defer them to a
separate change set.

Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: Michal Hocko <mhocko@suse.cz>
Cc: David Rientjes <rientjes@google.com>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agothp: move preallocated PTE page table on move_huge_pmd()
Kirill A. Shutemov [Fri, 13 Dec 2013 01:12:33 +0000 (17:12 -0800)]
thp: move preallocated PTE page table on move_huge_pmd()

Andrey Wagin reported crash on VM_BUG_ON() in pgtable_pmd_page_dtor() with
fallowing backtrace:

  free_pgd_range+0x2bf/0x410
  free_pgtables+0xce/0x120
  unmap_region+0xe0/0x120
  do_munmap+0x249/0x360
  move_vma+0x144/0x270
  SyS_mremap+0x3b9/0x510
  system_call_fastpath+0x16/0x1b

The crash can be reproduce with this test case:

  #define _GNU_SOURCE
  #include <sys/mman.h>
  #include <stdio.h>
  #include <unistd.h>

  #define MB (1024 * 1024UL)
  #define GB (1024 * MB)

  int main(int argc, char **argv)
  {
char *p;
int i;

p = mmap((void *) GB, 10 * MB, PROT_READ | PROT_WRITE,
MAP_PRIVATE | MAP_ANONYMOUS | MAP_FIXED, -1, 0);
for (i = 0; i < 10 * MB; i += 4096)
p[i] = 1;
mremap(p, 10 * MB, 10 * MB, MREMAP_FIXED | MREMAP_MAYMOVE, 2 * GB);
return 0;
  }

Due to split PMD lock, we now store preallocated PTE tables for THP
pages per-PMD table.  It means we need to move them to other PMD table
if huge PMD moved there.

Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Reported-by: Andrey Vagin <avagin@openvz.org>
Tested-by: Andrey Vagin <avagin@openvz.org>
Reviewed-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agomfd/rtc: s5m: fix register updating by adding regmap for RTC
Krzysztof Kozlowski [Fri, 13 Dec 2013 01:12:31 +0000 (17:12 -0800)]
mfd/rtc: s5m: fix register updating by adding regmap for RTC

Rename old regmap field of "struct sec_pmic_dev" to "regmap_pmic" and
add new regmap for RTC.

On S5M8767A registers were not properly updated and read due to usage of
the same regmap as the PMIC.  This could be observed in various hangs,
e.g.  in infinite loop during waiting for UDR field change.

On this chip family the RTC has different I2C address than PMIC so
additional regmap is needed.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Reviewed-by: Mark Brown <broonie@linaro.org>
Acked-by: Sangbeom Kim <sbkim73@samsung.com>
Cc: Samuel Ortiz <sameo@linux.intel.com>
Cc: Lee Jones <lee.jones@linaro.org>
Cc: Liam Girdwood <lgirdwood@gmail.com>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: Marek Szyprowski <m.szyprowski@samsung.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agortc: s5m: enable IRQ wake during suspend
Krzysztof Kozlowski [Fri, 13 Dec 2013 01:12:30 +0000 (17:12 -0800)]
rtc: s5m: enable IRQ wake during suspend

Add PM suspend/resume ops to rtc-s5m driver and enable IRQ wake during
suspend so the RTC would act like a wake up source.  This allows waking
up from suspend to RAM on RTC alarm interrupt.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Cc: Mark Brown <broonie@linaro.org>
Acked-by: Sangbeom Kim <sbkim73@samsung.com>
Cc: Samuel Ortiz <sameo@linux.intel.com>
Cc: Lee Jones <lee.jones@linaro.org>
Cc: Liam Girdwood <lgirdwood@gmail.com>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: Marek Szyprowski <m.szyprowski@samsung.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agortc: s5m: limit endless loop waiting for register update
Krzysztof Kozlowski [Fri, 13 Dec 2013 01:12:28 +0000 (17:12 -0800)]
rtc: s5m: limit endless loop waiting for register update

After setting alarm or time the driver is waiting for UDR register to be
cleared indicating that registers data have been transferred.

Limit the endless loop to only 5 retries.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Reviewed-by: Mark Brown <broonie@linaro.org>
Acked-by: Sangbeom Kim <sbkim73@samsung.com>
Cc: Samuel Ortiz <sameo@linux.intel.com>
Cc: Lee Jones <lee.jones@linaro.org>
Cc: Liam Girdwood <lgirdwood@gmail.com>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: Marek Szyprowski <m.szyprowski@samsung.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agortc: s5m: fix unsuccesful IRQ request during probe
Krzysztof Kozlowski [Fri, 13 Dec 2013 01:12:26 +0000 (17:12 -0800)]
rtc: s5m: fix unsuccesful IRQ request during probe

Probe failed for rtc-s5m:

s5m-rtc s5m-rtc: Failed to request alarm IRQ: 12: -22
s5m-rtc: probe of s5m-rtc failed with error -22

Fix rtc-s5m interrupt request by using regmap_irq_get_virq() for mapping
the IRQ.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Reviewed-by: Mark Brown <broonie@linaro.org>
Acked-by: Sangbeom Kim <sbkim73@samsung.com>
Cc: Samuel Ortiz <sameo@linux.intel.com>
Cc: Lee Jones <lee.jones@linaro.org>
Cc: Liam Girdwood <lgirdwood@gmail.com>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: Marek Szyprowski <m.szyprowski@samsung.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agodrivers/rtc/rtc-s5m.c: fix info->rtc assignment
Geert Uytterhoeven [Fri, 13 Dec 2013 01:12:25 +0000 (17:12 -0800)]
drivers/rtc/rtc-s5m.c: fix info->rtc assignment

Fix this warning:

  drivers/rtc/rtc-s5m.c: In function `s5m_rtc_probe':
  drivers/rtc/rtc-s5m.c:545: warning: assignment from incompatible pointer type

struct s5m_rtc_info.rtc has type "struct regmap *", while
struct sec_pmic_dev.rtc has type "struct i2c_client *".

Probably the author wanted to assign "struct sec_pmic_dev.regmap", which
has the correct type.

Also, as "rtc" doesn't make much sense as a name for a regmap, rename it
to "regmap".

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Sangbeom Kim <sbkim73@samsung.com>
Cc: Sachin Kamat <sachin.kamat@linaro.org>
Tested-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agoinclude/linux/kernel.h: make might_fault() a nop for !MMU
Axel Lin [Fri, 13 Dec 2013 01:12:24 +0000 (17:12 -0800)]
include/linux/kernel.h: make might_fault() a nop for !MMU

The machine cannot fault if !MUU, so make might_fault() a nop for !MMU.

This fixes below build error if
!CONFIG_MMU && (CONFIG_PROVE_LOCKING=y || CONFIG_DEBUG_ATOMIC_SLEEP=y):

  arch/arm/kernel/built-in.o: In function `arch_ptrace':
  arch/arm/kernel/ptrace.c:852: undefined reference to `might_fault'
  arch/arm/kernel/built-in.o: In function `restore_sigframe':
  arch/arm/kernel/signal.c:173: undefined reference to `might_fault'
  ...
  arch/arm/kernel/built-in.o:arch/arm/kernel/signal.c:177: more undefined references to `might_fault' follow
  make: *** [vmlinux] Error 1

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agodrivers/rtc/rtc-at91rm9200.c: correct alarm over day/month wrap
Linus Pizunski [Fri, 13 Dec 2013 01:12:23 +0000 (17:12 -0800)]
drivers/rtc/rtc-at91rm9200.c: correct alarm over day/month wrap

Update month and day of month to the alarm month/day instead of current
day/month when setting the RTC alarm mask.

Signed-off-by: Linus Pizunski <linus@narrativeteam.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agoprocfs: also fix proc_reg_get_unmapped_area() for !MMU case
Jan Beulich [Fri, 13 Dec 2013 01:12:22 +0000 (17:12 -0800)]
procfs: also fix proc_reg_get_unmapped_area() for !MMU case

Commit fad1a86e25e0 ("procfs: call default get_unmapped_area on
MMU-present architectures"), as its title says, took care of only the
MMU case, leaving the !MMU side still in the regressed state (returning
-EIO in all cases where pde->proc_fops->get_unmapped_area is NULL).

From the fad1a86e25e0 changelog:

 "Commit c4fe24485729 ("sparc: fix PCI device proc file mmap(2)") added
  proc_reg_get_unmapped_area in proc_reg_file_ops and
  proc_reg_file_ops_no_compat, by which now mmap always returns EIO if
  get_unmapped_area method is not defined for the target procfs file, which
  causes regression of mmap on /proc/vmcore.

  To address this issue, like get_unmapped_area(), call default
  current->mm->get_unmapped_area on MMU-present architectures if
  pde->proc_fops->get_unmapped_area, i.e.  the one in actual file operation
  in the procfs file, is not defined"

Signed-off-by: Jan Beulich <jbeulich@suse.com>
Cc: HATAYAMA Daisuke <d.hatayama@jp.fujitsu.com>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: <stable@vger.kernel.org> [3.12.x]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agomm: memcg: do not declare OOM from __GFP_NOFAIL allocations
Johannes Weiner [Fri, 13 Dec 2013 01:12:20 +0000 (17:12 -0800)]
mm: memcg: do not declare OOM from __GFP_NOFAIL allocations

Commit 84235de394d9 ("fs: buffer: move allocation failure loop into the
allocator") started recognizing __GFP_NOFAIL in memory cgroups but
forgot to disable the OOM killer.

Any task that does not fail allocation will also not enter the OOM
completion path.  So don't declare an OOM state in this case or it'll be
leaked and the task be able to bypass the limit until the next
userspace-triggered page fault cleans up the OOM state.

Reported-by: William Dauchy <wdauchy@gmail.com>
Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: Michal Hocko <mhocko@suse.cz>
Cc: David Rientjes <rientjes@google.com>
Cc: <stable@vger.kernel.org> [3.12.x]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agoinclude/linux/hugetlb.h: make isolate_huge_page() an inline
Naoya Horiguchi [Fri, 13 Dec 2013 01:12:19 +0000 (17:12 -0800)]
include/linux/hugetlb.h: make isolate_huge_page() an inline

With CONFIG_HUGETLBFS=n:

  mm/migrate.c: In function `do_move_page_to_node_array':
  include/linux/hugetlb.h:140:33: warning: statement with no effect [-Wunused-value]
   #define isolate_huge_page(p, l) false
                                   ^
  mm/migrate.c:1170:4: note: in expansion of macro `isolate_huge_page'
      isolate_huge_page(page, &pagelist);

Reported-by: Borislav Petkov <bp@alien8.de>
Tested-by: Borislav Petkov <bp@alien8.de>
Signed-off-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Acked-by: David Rientjes <rientjes@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agoMerge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Linus Torvalds [Thu, 12 Dec 2013 23:46:06 +0000 (15:46 -0800)]
Merge tag 'for-linus' of git://git./virt/kvm/kvm

Pull kvm fixes from Paolo Bonzini:
 "Four security fixes for KVM on x86.  Thanks to Andrew Honig and Lars
  Bull from Google for reporting them"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  KVM: x86: fix guest-initiated crash with x2apic (CVE-2013-6376)
  KVM: x86: Convert vapic synchronization to _cached functions (CVE-2013-6368)
  KVM: x86: Fix potential divide by 0 in lapic (CVE-2013-6367)
  KVM: Improve create VCPU parameter (CVE-2013-4587)

10 years agoMerge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm...
Linus Torvalds [Thu, 12 Dec 2013 23:45:03 +0000 (15:45 -0800)]
Merge tag 'fixes-for-linus' of git://git./linux/kernel/git/arm/arm-soc

Pull ARM SoC fixes from Olof Johansson:
 "Another week, another batch of fixes.

  Again, OMAP regressions due to move to DT is the bulk of the changes
  here, but this should be the last of it for 3.13.  There are also a
  handful of OMAP hwmod changes (power management, reset handling) for
  USB on OMAP3 that fixes some longish-standing bugs around USB resets.

  There are a couple of other changes that also add up line count a bit:
  One is a long-standing bug with the keyboard layout on one of the PXA
  platforms.  The other is a fix for highbank that moves their
  power-off/reset button handling to be done in-kernel since relying on
  userspace to handle it was fragile and awkward"

* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  ARM: sun6i: dt: Fix interrupt trigger types
  ARM: sun7i: dt: Fix interrupt trigger types
  MAINTAINERS: merge IMX6 entry into IMX
  ARM: tegra: add missing break to fuse initialization code
  ARM: pxa: prevent PXA270 occasional reboot freezes
  ARM: pxa: tosa: fix keys mapping
  ARM: OMAP2+: omap_device: add fail hook for runtime_pm when bad data is detected
  ARM: OMAP2+: hwmod: Fix usage of invalid iclk / oclk when clock node is not present
  ARM: OMAP3: hwmod data: Don't prevent RESET of USB Host module
  ARM: OMAP2+: hwmod: Fix SOFTRESET logic
  ARM: OMAP4+: hwmod data: Don't prevent RESET of USB Host module
  ARM: dts: Fix booting for secure omaps
  ARM: OMAP2+: Fix the machine entry for am3517
  ARM: dts: Fix missing entries for am3517
  ARM: OMAP2+: Fix overwriting hwmod data with data from device tree
  ARM: davinci: Fix McASP mem resource names
  ARM: highbank: handle soft poweroff and reset key events
  ARM: davinci: fix number of resources passed to davinci_gpio_register()
  gpio: davinci: fix check for unbanked gpio

10 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux...
Linus Torvalds [Thu, 12 Dec 2013 23:25:10 +0000 (15:25 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/mason/linux-btrfs

Pull btrfs fixes from Chris Mason:
 "This is a small collection of fixes.  It was rebased this morning, but
  I was just fixing signed-off-by tags with the wrong email"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs:
  Btrfs: fix access_ok() check in btrfs_ioctl_send()
  Btrfs: make sure we cleanup all reloc roots if error happens
  Btrfs: skip building backref tree for uuid and quota tree when doing balance relocation
  Btrfs: fix an oops when doing balance relocation
  Btrfs: don't miss skinny extent items on delayed ref head contention
  btrfs: call mnt_drop_write after interrupted subvol deletion
  Btrfs: don't clear the default compression type

10 years agoMerge branch 'for-3.13' of git://linux-nfs.org/~bfields/linux
Linus Torvalds [Thu, 12 Dec 2013 23:24:32 +0000 (15:24 -0800)]
Merge branch 'for-3.13' of git://linux-nfs.org/~bfields/linux

Pull nfsd reply cache bugfix from Bruce Fields:
 "One bugfix for nfsd crashes"

* 'for-3.13' of git://linux-nfs.org/~bfields/linux:
  nfsd: when reusing an existing repcache entry, unhash it first

10 years agomtd: nand: pxa3xx: Use info->use_dma to release DMA resources
Ezequiel Garcia [Tue, 10 Dec 2013 12:57:15 +0000 (09:57 -0300)]
mtd: nand: pxa3xx: Use info->use_dma to release DMA resources

In commit:

  commit 62e8b851783138a11da63285be0fbf69530ff73d
  Author: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
  Date:   Fri Oct 4 15:30:38 2013 -0300

  mtd: nand: pxa3xx: Allocate data buffer on detected flash size

the way the buffer is allocated was changed: the first READ_ID is issued
with a small kmalloc'ed buffer. Only once the flash page size is detected
the DMA buffers are allocated, and info->use_dma is set.

Currently, if the device detection fails, the driver checks the 'use_dma'
module parameter and tries to release unallocated DMA resources.

Fix this by checking the proper indicator of the DMA allocation, which
is 'info->use_dma'.

Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
10 years agoPartially revert "mtd: nand: pxa3xx: Introduce 'marvell,armada370-nand' compatible...
Ezequiel Garcia [Mon, 9 Dec 2013 21:36:26 +0000 (18:36 -0300)]
Partially revert "mtd: nand: pxa3xx: Introduce 'marvell,armada370-nand' compatible string"

This partially reverts c0f3b8643a6fa2461d70760ec49d21d2b031d611.

The "armada370-nand" compatible support is not complete, and it was mistake
to add it. Revert it and postpone the support until the infrastructure is
in place.

Cc: <stable@vger.kernel.org> # 3.12
Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Acked-by: Jason Cooper <jason@lakedaemon.net>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
10 years agoselinux: process labeled IPsec TCP SYN-ACK packets properly in selinux_ip_postroute()
Paul Moore [Tue, 10 Dec 2013 19:58:01 +0000 (14:58 -0500)]
selinux: process labeled IPsec TCP SYN-ACK packets properly in selinux_ip_postroute()

Due to difficulty in arriving at the proper security label for
TCP SYN-ACK packets in selinux_ip_postroute(), we need to check packets
while/before they are undergoing XFRM transforms instead of waiting
until afterwards so that we can determine the correct security label.

Reported-by: Janak Desai <Janak.Desai@gtri.gatech.edu>
Cc: stable@vger.kernel.org
Signed-off-by: Paul Moore <pmoore@redhat.com>
10 years agoselinux: look for IPsec labels on both inbound and outbound packets
Paul Moore [Tue, 10 Dec 2013 19:57:54 +0000 (14:57 -0500)]
selinux: look for IPsec labels on both inbound and outbound packets

Previously selinux_skb_peerlbl_sid() would only check for labeled
IPsec security labels on inbound packets, this patch enables it to
check both inbound and outbound traffic for labeled IPsec security
labels.

Reported-by: Janak Desai <Janak.Desai@gtri.gatech.edu>
Cc: stable@vger.kernel.org
Signed-off-by: Paul Moore <pmoore@redhat.com>
10 years agoselinux: handle TCP SYN-ACK packets correctly in selinux_ip_postroute()
Paul Moore [Wed, 4 Dec 2013 21:10:51 +0000 (16:10 -0500)]
selinux: handle TCP SYN-ACK packets correctly in selinux_ip_postroute()

In selinux_ip_postroute() we perform access checks based on the
packet's security label.  For locally generated traffic we get the
packet's security label from the associated socket; this works in all
cases except for TCP SYN-ACK packets.  In the case of SYN-ACK packet's
the correct security label is stored in the connection's request_sock,
not the server's socket.  Unfortunately, at the point in time when
selinux_ip_postroute() is called we can't query the request_sock
directly, we need to recreate the label using the same logic that
originally labeled the associated request_sock.

See the inline comments for more explanation.

Reported-by: Janak Desai <Janak.Desai@gtri.gatech.edu>
Tested-by: Janak Desai <Janak.Desai@gtri.gatech.edu>
Cc: stable@vger.kernel.org
Signed-off-by: Paul Moore <pmoore@redhat.com>
10 years agoselinux: handle TCP SYN-ACK packets correctly in selinux_ip_output()
Paul Moore [Wed, 4 Dec 2013 21:10:45 +0000 (16:10 -0500)]
selinux: handle TCP SYN-ACK packets correctly in selinux_ip_output()

In selinux_ip_output() we always label packets based on the parent
socket.  While this approach works in almost all cases, it doesn't
work in the case of TCP SYN-ACK packets when the correct label is not
the label of the parent socket, but rather the label of the larval
socket represented by the request_sock struct.

Unfortunately, since the request_sock isn't queued on the parent
socket until *after* the SYN-ACK packet is sent, we can't lookup the
request_sock to determine the correct label for the packet; at this
point in time the best we can do is simply pass/NF_ACCEPT the packet.
It must be said that simply passing the packet without any explicit
labeling action, while far from ideal, is not terrible as the SYN-ACK
packet will inherit any IP option based labeling from the initial
connection request so the label *should* be correct and all our
access controls remain in place so we shouldn't have to worry about
information leaks.

Reported-by: Janak Desai <Janak.Desai@gtri.gatech.edu>
Tested-by: Janak Desai <Janak.Desai@gtri.gatech.edu>
Cc: stable@vger.kernel.org
Signed-off-by: Paul Moore <pmoore@redhat.com>
10 years agoi2c: imx: Check the return value from clk_prepare_enable()
Fabio Estevam [Wed, 4 Dec 2013 22:21:37 +0000 (20:21 -0200)]
i2c: imx: Check the return value from clk_prepare_enable()

clk_prepare_enable() may fail, so let's check its return value and propagate it
in the case of error.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
10 years agoKVM: x86: fix guest-initiated crash with x2apic (CVE-2013-6376)
Gleb Natapov [Thu, 12 Dec 2013 20:20:08 +0000 (21:20 +0100)]
KVM: x86: fix guest-initiated crash with x2apic (CVE-2013-6376)

A guest can cause a BUG_ON() leading to a host kernel crash.
When the guest writes to the ICR to request an IPI, while in x2apic
mode the following things happen, the destination is read from
ICR2, which is a register that the guest can control.

kvm_irq_delivery_to_apic_fast uses the high 16 bits of ICR2 as the
cluster id.  A BUG_ON is triggered, which is a protection against
accessing map->logical_map with an out-of-bounds access and manages
to avoid that anything really unsafe occurs.

The logic in the code is correct from real HW point of view. The problem
is that KVM supports only one cluster with ID 0 in clustered mode, but
the code that has the bug does not take this into account.

Reported-by: Lars Bull <larsbull@google.com>
Cc: stable@vger.kernel.org
Signed-off-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
10 years agoKVM: x86: Convert vapic synchronization to _cached functions (CVE-2013-6368)
Andy Honig [Wed, 20 Nov 2013 18:23:22 +0000 (10:23 -0800)]
KVM: x86: Convert vapic synchronization to _cached functions (CVE-2013-6368)

In kvm_lapic_sync_from_vapic and kvm_lapic_sync_to_vapic there is the
potential to corrupt kernel memory if userspace provides an address that
is at the end of a page.  This patches concerts those functions to use
kvm_write_guest_cached and kvm_read_guest_cached.  It also checks the
vapic_address specified by userspace during ioctl processing and returns
an error to userspace if the address is not a valid GPA.

This is generally not guest triggerable, because the required write is
done by firmware that runs before the guest.  Also, it only affects AMD
processors and oldish Intel that do not have the FlexPriority feature
(unless you disable FlexPriority, of course; then newer processors are
also affected).

Fixes: b93463aa59d6 ('KVM: Accelerated apic support')

Reported-by: Andrew Honig <ahonig@google.com>
Cc: stable@vger.kernel.org
Signed-off-by: Andrew Honig <ahonig@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>