GitHub/LineageOS/G12/android_kernel_amlogic_linux-4.9.git
12 years agoasus-nb-wmi: set panel_power correctly
Corentin Chary [Tue, 20 Mar 2012 08:53:11 +0000 (09:53 +0100)]
asus-nb-wmi: set panel_power correctly

Even if it's currently unused.

Signed-off-by: Corentin Chary <corentin.chary@gmail.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
12 years agoasus-wmi: move WAPF variable into quirks_entry
Corentin Chary [Tue, 20 Mar 2012 08:53:10 +0000 (09:53 +0100)]
asus-wmi: move WAPF variable into quirks_entry

Some models work better with different values of wapf, so move the
variable into quriks_entry to make it more easy to give a specific
value to different models.

Based on original patch from AceLan Kao <acelan.kao@canonical.com>

Cc: AceLan Kao <acelan.kao@canonical.com>
Signed-off-by: Corentin Chary <corentin.chary@gmail.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
12 years agoasus-wmi: store backlight power status for AIO machine
AceLan Kao [Tue, 20 Mar 2012 08:53:09 +0000 (09:53 +0100)]
asus-wmi: store backlight power status for AIO machine

Due to some implementation reasons, ASUS ET2012 All-in-One machines
can't report the correct backlight power status, it will always return
1. To track the backlight power status correctly, we have to store the
status by ourselves.

BTW, by the BIOS design, the backlight power will be turn on/off
sequently, no matter what the value of the parameter will be.
More over, the brightness adjustment command will turn on the backlight
power. Those behaviors will make us fail to track the backlight power
status.
For example, While we are trying to turn on the backlight power,
we will send out the brightness adjustment command and then trying to
figure out if we have to turn on the backlight power, then send out
the command. But, the real case is that, the backlight power turns on
while sending the brightness adjustment command, and then we send out
the command to turn on the backlight power, it actually will turn off
the backlight power and the backlight power status we recorded becomes
wrong. So, we have to seperate these two commands by a if statement.

Signed-off-by: AceLan Kao <acelan.kao@canonical.com>
Signed-off-by: Corentin Chary <corentin.chary@gmail.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
12 years agoasus-wmi: add scalar board brightness adj. support
AceLan Kao [Tue, 20 Mar 2012 08:53:08 +0000 (09:53 +0100)]
asus-wmi: add scalar board brightness adj. support

Some ASUS ET2012E/I All-in-One machines that use a scalar board
to control the brightness, and they only accept brightness up and down
command. So, I introduced a get_scalar_command() function to pass the
command to the scalar board through WMI.

Besides, we have to store the brightness value locally, for we need the
old value to know the brightness value is increasing or decreasing.

BTW, since there is no way to retrieve the actual brightness(it would be
a fixed value), and the max brightness value would be fixed to 1, so we
have to keep passing the brightness up/down command when we reached the
max brightness value or 0.

Signed-off-by: AceLan Kao <acelan.kao@canonical.com>
Signed-off-by: Corentin Chary <corentin.chary@gmail.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
12 years agosamsung-laptop: cleanup return type: mode_t vs umode_t
Dan Carpenter [Tue, 20 Mar 2012 08:53:07 +0000 (09:53 +0100)]
samsung-laptop: cleanup return type: mode_t vs umode_t

This function returns a umode_t (unsigned short) instead of mode_t which
is an unsigned int on some architectures.  Cleaning this up silences a
compile warning:

drivers/platform/x86/samsung-laptop.c:1108:2: warning: initialization
from incompatible pointer type [enabled by default]

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Corentin Chary <corentincj@iksaif.net>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
12 years agodrivers, samsung-laptop: fix usage of isalnum
David Rientjes [Tue, 20 Mar 2012 08:53:06 +0000 (09:53 +0100)]
drivers, samsung-laptop: fix usage of isalnum

linux/ctype.h is needed for isalnum() to avoid a build error:

drivers/platform/x86/samsung-laptop.c: In function ‘samsung_sabi_diag’:
drivers/platform/x86/samsung-laptop.c:1306: error: implicit declaration of function ‘isalnum’

Signed-off-by: David Rientjes <rientjes@google.com>
Signed-off-by: Corentin Chary <corentincj@iksaif.net>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
12 years agodrivers, samsung-laptop: fix initialization of sabi_data in sabi_set_commandb
David Rientjes [Tue, 20 Mar 2012 08:53:05 +0000 (09:53 +0100)]
drivers, samsung-laptop: fix initialization of sabi_data in sabi_set_commandb

Fields d0, d1, d2, and d3 are members of an anonymous struct inside an
anonymous union inside struct sabi_data.  Initialization must be done by
wrapping the anonymous union and structs with brackets to avoid a build
error:

drivers/platform/x86/samsung-laptop.c: In function ‘sabi_set_commandb’:
drivers/platform/x86/samsung-laptop.c:433: error: unknown field ‘d0’ specified in initializer
drivers/platform/x86/samsung-laptop.c:433: warning: missing braces around initializer
drivers/platform/x86/samsung-laptop.c:433: warning: (near initialization for ‘in.<anonymous>’)
...

Signed-off-by: David Rientjes <rientjes@google.com>
Signed-off-by: Corentin Chary <corentincj@iksaif.net>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
12 years agoasus-wmi: on/off bit is not set when reading the value
Corentin Chary [Tue, 20 Mar 2012 08:53:04 +0000 (09:53 +0100)]
asus-wmi: on/off bit is not set when reading the value

Signed-off-by: Corentin Chary <corentin.chary@gmail.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
12 years agoeeepc-wmi: add extra keymaps for EP121
Chih-Wei Huang [Tue, 20 Mar 2012 08:53:03 +0000 (09:53 +0100)]
eeepc-wmi: add extra keymaps for EP121

Signed-off-by: Chih-Wei Huang <cwhuang@linux.org.tw>
Signed-off-by: Corentin Chary <corentincj@iksaif.net>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
12 years agoasus-nb-wmi: ignore useless keys
Corentin Chary [Tue, 20 Mar 2012 08:53:02 +0000 (09:53 +0100)]
asus-nb-wmi: ignore useless keys

Signed-off-by: Corentin Chary <corentincj@iksaif.net>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
12 years agoacer-wmi: support Lenovo ideapad S205 Brazos wifi switch
Lee, Chun-Yi [Tue, 20 Mar 2012 03:32:49 +0000 (11:32 +0800)]
acer-wmi: support Lenovo ideapad S205 Brazos wifi switch

Vaclav found a new ideapad S205 Brazos machine that used the same
EC register of wireless with S205 but has different product name.

So, add this machine to quirk for support wireless rfkill.

Tested on Lenovo ideapad S205 Brazos

Tested-by: Vaclav Mocek <vmocek@gmail.com>
Acked-by: Ike Panhc <ike.pan@canonical.com>
Cc: Carlos Corbacho <carlos@strangeworlds.co.uk>
Cc: Matthew Garrett <mjg@redhat.com>
Cc: Dmitry Torokhov <dtor@mail.ru>
Cc: Corentin Chary <corentincj@iksaif.net>
Cc: Thomas Renninger <trenn@suse.de>
Signed-off-by: Lee, Chun-Yi <jlee@suse.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
12 years agoacer-wmi: fix out of input parameter size when set
Lee, Chun-Yi [Mon, 19 Mar 2012 09:37:33 +0000 (17:37 +0800)]
acer-wmi: fix out of input parameter size when set

The input parameter of set device status is different with get device
status. There have volume value element for set status but don't need
for get action.

On Acer TravelMate 4750 creates field on volume value element even
doesn't use it in DSDT. So, add this patch for separate input paramter
between set device status with get status.

Tested on Acer TravelMate 4750

Cc: Carlos Corbacho <carlos@strangeworlds.co.uk>
Cc: Matthew Garrett <mjg@redhat.com>
Cc: Dmitry Torokhov <dtor@mail.ru>
Cc: Corentin Chary <corentincj@iksaif.net>
Cc: Thomas Renninger <trenn@suse.de>
Signed-off-by: Lee, Chun-Yi <jlee@suse.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
12 years agoacer-wmi: Detect communication hot key number
Lee, Chun-Yi [Mon, 19 Mar 2012 09:37:32 +0000 (17:37 +0800)]
acer-wmi: Detect communication hot key number

Currently we set a fixed hot key number to 0x01 for communction button,
but, actually, the key number is different on each acer laptop and it was
reported by SMBIOS.

So, add this patch to get the communication hot key number from Acer
OEM-specific SMBIOS Type AA.

Tested on Acer TravelMate 4750

Cc: Carlos Corbacho <carlos@strangeworlds.co.uk>
Cc: Matthew Garrett <mjg@redhat.com>
Cc: Dmitry Torokhov <dtor@mail.ru>
Cc: Corentin Chary <corentincj@iksaif.net>
Cc: Thomas Renninger <trenn@suse.de>
Signed-off-by: Lee, Chun-Yi <jlee@suse.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
12 years agoplatform/x86: Add driver for Apple gmux device
Seth Forshee [Fri, 16 Mar 2012 19:41:22 +0000 (14:41 -0500)]
platform/x86: Add driver for Apple gmux device

Apple laptops with hybrid graphics have a device named gmux that
controls the muxing of the LVDS panel between the GPUs as well as screen
brightness. This driver adds support for the gmux device. Only backlight
control is supported initially.

Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Tested-by: Grant Likely <grant.likely@secretlab.ca>
12 years agoapple_bl: Add register/unregister functions
Seth Forshee [Fri, 16 Mar 2012 19:41:21 +0000 (14:41 -0500)]
apple_bl: Add register/unregister functions

Add functions to allow other modules to enable or disable apple_bl. This
will be used by the gmux driver to disable apple_bl when the gmux is
present, as it is a better and more reliable option for brightness
control.

Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
12 years agotoshiba_acpi: Refuse to load on machines with buggy INFO implementations
Seth Forshee [Wed, 18 Jan 2012 19:44:11 +0000 (13:44 -0600)]
toshiba_acpi: Refuse to load on machines with buggy INFO implementations

Several Satellite models have a buggy implementation of the INFO method
that causes ACPI exceptions when executed:

 ACPI Error: Result stack is empty! State=ffff88012d70f800 (20110413/dswstate-98)
 ACPI Exception: AE_AML_NO_RETURN_VALUE, Missing or null operand (20110413/dsutils-646)
 ACPI Exception: AE_AML_NO_RETURN_VALUE, While creating Arg 0 (20110413/dsutils-763)
 ACPI Error: Method parse/execution failed [\_SB_.VALZ.GETE] (Node ffff880131175eb0), AE_AML_NO_RETURN_VALUE (20110413/psparse-536)
 ACPI Error: Method parse/execution failed [\_SB_.VALZ.INFO] (Node ffff880131175ed8), AE_AML_NO_RETURN_VALUE (20110413/psparse-536)
 toshiba_acpi: ACPI INFO method execution failed
 toshiba_acpi: Failed to query hotkey event

All known machines with this implementation also have a WMI interface
with event GUID 59142400-C6A3-40FA-BADB-8A2652834100 which is not seen
on any other models. Refuse to load toshiba_acpi on machines with this
guid.

Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
12 years agotoshiba_acpi: Support additional hotkey scancodes
Azael Avalos [Wed, 18 Jan 2012 19:44:10 +0000 (13:44 -0600)]
toshiba_acpi: Support additional hotkey scancodes

These scancodes are used by many of the models now supported with
the addition of TOS1900 device support.

Signed-off-by: Azael Avalos <coproscefalo@gmail.com>
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
12 years agotoshiba_acpi: Support alternate hotkey interfaces
Seth Forshee [Wed, 18 Jan 2012 19:44:09 +0000 (13:44 -0600)]
toshiba_acpi: Support alternate hotkey interfaces

There are two types of problems that prevent hotkeys from working
on many of the machines supported by toshiba_acpi. The first of
these is the lack of a functioning SCI for hotkey events. For these
machines it is possible to filter the Fn keypresses from the
keyboard and generate a notification by executing the ACPI NTFY
method.

The second problem is a lack of support for HCI_SYSTEM_EVENT, which
is used for reading the hotkey scancodes. On these machines the
scancodes can be read by executing the ACPI NTFY method.

This patch fixes both problems by installing an i8042 filter when
the NTFY method is present to generate notifications and by
detecting which of INFO or HCI_SYSTEM_EVENT is supported for
reading scancodes. If neither method of reading scancodes is
supported, the hotkey input device is not registered.

Signed-off-by: Azael Avalos <coproscefalo@gmail.com>
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
12 years agoACPI: EC: Add ec_get_handle()
Seth Forshee [Wed, 18 Jan 2012 19:44:08 +0000 (13:44 -0600)]
ACPI: EC: Add ec_get_handle()

toshiba_acpi needs to execute an AML method within the EC namespace
to make hotkeys work on some platforms. Provide an interface to
allow it to easily get a handle to the EC namespace for this purpose.

Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
12 years agointel_mid_powerbtn: use MSIC read/write instead of ipc_scu
Michael Demeter [Thu, 26 Jan 2012 17:40:27 +0000 (17:40 +0000)]
intel_mid_powerbtn: use MSIC read/write instead of ipc_scu

In the 2.6.36 kernel we did not have the MSIC driver. Changed
all ipc_scu_reads/writes to use the MSIC driver and defines.
Added a fix from the 2.6.36 kernel where the SCU FW could send
a power button interrupt to the IA32 FW and the kernel was not
running yet. This resulted in the interrupt not getting cleared
and the power button was ignored. this fix just clears the
interrupt on start-up.

Signed-off-by: Michael Demeter <michael.demeter@intel.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Revert style-only changes. Remove unused variable. Fix comment style.]
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
12 years agoplatform, x86: Kill off Moorestown
Alan Cox [Thu, 26 Jan 2012 17:37:36 +0000 (17:37 +0000)]
platform, x86: Kill off Moorestown

All production devices operate in the Oaktrail configuration with legacy PC
elements present and an ACPI BIOS. Continue stripping out the Moorestown
elements from the tree leaving Medfield.

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
12 years agohdaps: trivial fix for -Wuninitialized
Danny Kukawka [Mon, 30 Jan 2012 22:00:11 +0000 (23:00 +0100)]
hdaps: trivial fix for -Wuninitialized

Trivial fix for some -Wuninitialized compiler warnings.

Signed-off-by: Danny Kukawka <danny.kukawka@bisect.de>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
12 years agoacer-wmi: ignore missing Aspire 5741G keys (checkpatched)
Sergey Senozhatsky [Mon, 12 Mar 2012 10:07:13 +0000 (13:07 +0300)]
acer-wmi: ignore missing Aspire 5741G keys (checkpatched)

acer-wmi: ignore missing Aspire 5741G keys

Ignore Aspire's 5741G:
 KEY_PREVIOUSSONG
 KEY_NEXTSONG
 KEY_PLAYPAUSE
 KEY_STOP
 KEY_VOLUMEDOWN

Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
12 years agoacer-wmi: support for P key on TM8372
Merlin Schumacher [Mon, 23 Jan 2012 20:35:35 +0000 (04:35 +0800)]
acer-wmi: support for P key on TM8372

BugLink: http://launchpad.net/bugs/865807
There is no entry for P key on TM8372, so when P key is pressed, only
"acer_wmi: Unknown key number - 0x29" in dmesg.

Signed-off-by: Merlin Schumacher <merlin.schumacher@gmail.com>
Signed-off-by: Ike Panhc <ike.pan@canonical.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
12 years agodell-laptop: touchpad LED should persist its status after S3
AceLan Kao [Tue, 17 Jan 2012 08:18:06 +0000 (16:18 +0800)]
dell-laptop: touchpad LED should persist its status after S3

Touchpad LED will not turn on after S3, it will make the touchpad status
doesn't consist with the LED.
By adding one flag to let the LED device restore it's status.

Signed-off-by: AceLan Kao <acelan.kao@canonical.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
12 years agogeos: Platform driver for Geos and Geos2 single-board computers.
Philip A. Prindeville [Sat, 14 Jan 2012 08:45:39 +0000 (01:45 -0700)]
geos: Platform driver for Geos and Geos2 single-board computers.

Trivial platform driver for Traverse Technologies Geos and Geos2
single-board computers. Uses SMBIOS to identify platform.
Based on progressive revisions of the leds-net5501 driver that
was rewritten by Ed Wildgoose as a platform driver.

Supports GPIO-based LEDs (3) and 1 polled button which is
typically used for a soft reset.

Signed-off-by: Philip Prindeville <philipp@redfish-solutions.com>
Reviewed-by: Ed Wildgoose <ed@wildgooses.com>
Acked-by: Andres Salomon <dilinger@queued.net>
Cc: Richard Purdie <rpurdie@rpsys.net>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
12 years agotoshiba_acpi: make one-bit bitfields unsigned
Dan Carpenter [Sun, 15 Jan 2012 11:28:20 +0000 (14:28 +0300)]
toshiba_acpi: make one-bit bitfields unsigned

This doesn't change how the code works, but it silences a Sparse
complaint:
drivers/platform/x86/toshiba_acpi.c:121:37: error: dubious one-bit signed bitfield

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
12 years agoacer-wmi: remove useless input argument for internal wmi
Lee, Chun-Yi [Mon, 9 Jan 2012 06:26:44 +0000 (14:26 +0800)]
acer-wmi: remove useless input argument for internal wmi

The "wmi_interface *iface" is a useless input argument for internal wmi get/set
functions, remove it to clear up source code.

Tested on Lenovo E520.
Tested on Acer TravelMate 4750.

Tested-by: mr.kobzar <mr.kobzar@gmail.com>
Cc: Carlos Corbacho <carlos@strangeworlds.co.uk>
Cc: Matthew Garrett <mjg@redhat.com>
Cc: Dmitry Torokhov <dtor@mail.ru>
Cc: Corentin Chary <corentincj@iksaif.net>
Cc: Thomas Renninger <trenn@suse.de>
Signed-off-by: Lee, Chun-Yi <jlee@suse.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
12 years agox86, mrst: add msic_thermal platform support
Mika Westerberg [Thu, 15 Dec 2011 22:28:37 +0000 (22:28 +0000)]
x86, mrst: add msic_thermal platform support

This will let the MSIC driver to create platform device for the thermal
driver.

Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
12 years agoplatform-x86: intel_mid_thermal: turn off thermistor voltage by default
Mika Westerberg [Thu, 15 Dec 2011 22:28:24 +0000 (22:28 +0000)]
platform-x86: intel_mid_thermal: turn off thermistor voltage by default

Instead of complaining that the voltage is on, we can just ask the MSIC to
turn the voltage off. This should save some power.

Voltage for thermistors is turned on when ADC conversion is initiated.

Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
12 years agoplatform-x86: intel_mid_thermal: convert to use Intel MSIC API
Mika Westerberg [Thu, 15 Dec 2011 22:28:11 +0000 (22:28 +0000)]
platform-x86: intel_mid_thermal: convert to use Intel MSIC API

Intel MSIC MFD driver provides common register access interface to the
devices in the MSIC die so we use that instead of SCU IPC.

Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
12 years agoplatform-x86: intel_mid_thermal: add msic_thermal alias
Mika Westerberg [Thu, 15 Dec 2011 22:27:59 +0000 (22:27 +0000)]
platform-x86: intel_mid_thermal: add msic_thermal alias

In newer boards this device is called "msic_thermal" instead of
"msic_sensor". To support both we add suitable alias for the driver.

Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
12 years agosamsung-laptop: fix seclinux rfkill and us it as fallback
Corentin Chary [Thu, 15 Dec 2011 07:27:39 +0000 (08:27 +0100)]
samsung-laptop: fix seclinux rfkill and us it as fallback

Signed-off-by: Corentin Chary <corentincj@iksaif.net>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
12 years agoasus-laptop: add some keys found on Lenovo SL500
Corentin Chary [Thu, 15 Dec 2011 07:27:38 +0000 (08:27 +0100)]
asus-laptop: add some keys found on Lenovo SL500

Signed-off-by: Corentin Chary <corentin.chary@gmail.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
12 years agoplatform/x86: drop deprecated asus_acpi driver
Corentin Chary [Thu, 15 Dec 2011 07:27:37 +0000 (08:27 +0100)]
platform/x86: drop deprecated asus_acpi driver

asus_acpi only support old models, it has been deprecated since
2009 in favor of asus-laptop, it's not built by any (sane) distro,
so it is time to say good bye.

Thanks to Julien Lerouge and Karol Kozimor for the work they have
done on it, I would never have wrote asus-laptop and other asus
related drivers without asus_acpi.

Signed-off-by: Corentin Chary <corentin.chary@gmail.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
12 years agoasus-laptop: check WLED and BLED presence before adding rfkill
Corentin Chary [Thu, 15 Dec 2011 07:27:36 +0000 (08:27 +0100)]
asus-laptop: check WLED and BLED presence before adding rfkill

Signed-off-by: Corentin Chary <corentin.chary@gmail.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
12 years agoasus-laptop: add rfkill interfaces for wlan and wwan
Corentin Chary [Thu, 15 Dec 2011 07:27:35 +0000 (08:27 +0100)]
asus-laptop: add rfkill interfaces for wlan and wwan

But don't try to do than on pegatron tablets to avoid any
conflict.

Signed-off-by: Corentin Chary <corentin.chary@gmail.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
12 years agoasus-laptop: control how BLED and WLED should be exposed
Corentin Chary [Thu, 15 Dec 2011 07:27:34 +0000 (08:27 +0100)]
asus-laptop: control how BLED and WLED should be exposed

Let the user tells if BLED and WLED should be exposed as led or
rfkill (the old sysfs are still here, but this adds a standard
interface to control the device).

For example on my A6JC, with WAPF=1, I would do:

$ modprobe asus-laptop wled_type=led bluetooth_type=rfkill

There is still no known way to automatically guess what BLED
and WLED methods will control, it's why user information is needed.

A userspace database could do that automatically, and maybe some DMI
matching in the driver.

Signed-off-by: Corentin Chary <corentin.chary@gmail.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
12 years agoasus-laptop: cleanup rfkill code
Corentin Chary [Thu, 15 Dec 2011 07:27:33 +0000 (08:27 +0100)]
asus-laptop: cleanup rfkill code

Signed-off-by: Corentin Chary <corentincj@iksaif.net>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
12 years agoeeepc-laptop: log unknown keys
Corentin Chary [Thu, 15 Dec 2011 07:27:32 +0000 (08:27 +0100)]
eeepc-laptop: log unknown keys

Signed-off-by: Corentin Chary <corentin.chary@gmail.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
12 years agoasus-laptop: log unknown keys
Corentin Chary [Thu, 15 Dec 2011 07:27:31 +0000 (08:27 +0100)]
asus-laptop: log unknown keys

Signed-off-by: Corentin Chary <corentin.chary@gmail.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
12 years agoacerhdf: Message logging neatening
Joe Perches [Tue, 29 Nov 2011 19:04:06 +0000 (11:04 -0800)]
acerhdf: Message logging neatening

Use pr_warn not pr_warning.
Coalesce formats.
Argument aligning.
Remove superfluous parentheses.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Lee, Chun-Yi <jlee@suse.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
12 years agoacer-wmi: Message logging neatening
Joe Perches [Tue, 29 Nov 2011 19:04:05 +0000 (11:04 -0800)]
acer-wmi: Message logging neatening

Use pr_warn not pr_warning.
Coalesce formats.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Lee, Chun-Yi <jlee@suse.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
12 years agosamsung-laptop: promote myself as maintainer of samsung-laptop
Corentin Chary [Mon, 5 Dec 2011 17:38:35 +0000 (12:38 -0500)]
samsung-laptop: promote myself as maintainer of samsung-laptop

Signed-off-by: Corentin Chary <corentincj@iksaif.net>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
12 years agosamsung-laptop: tweak traces
Corentin Chary [Sat, 26 Nov 2011 10:00:12 +0000 (11:00 +0100)]
samsung-laptop: tweak traces

- don't output error when probing features at load
- print the SABI signature if samsung_sabi_init()
  succeed

Signed-off-by: Corentin Chary <corentincj@iksaif.net>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
12 years agosamsung-laptop: dump model and version informations
Corentin Chary [Sat, 26 Nov 2011 10:00:11 +0000 (11:00 +0100)]
samsung-laptop: dump model and version informations

We still need to figure out exactly what each of different fields
represent, but they contain at least model and version informations.

Signed-off-by: Corentin Chary <corentincj@iksaif.net>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
12 years agosamsung-laptop: make the dmi check less strict
Corentin Chary [Sat, 26 Nov 2011 10:00:10 +0000 (11:00 +0100)]
samsung-laptop: make the dmi check less strict

This enable the driver for everything that look like
a laptop and is from vendor "SAMSUNG ELECTRONICS CO., LTD.".
Note that laptop supported by samsung-q10 seem to have a different
vendor strict.

Also remove every log output until we know that we have a SABI interface
(except if the driver is forced to load, or debug is enabled).

Keeping a whitelist of laptop with a model granularity is something that can't
work without close vendor cooperation (and we don't have that).

Signed-off-by: Corentin Chary <corentincj@iksaif.net>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
12 years agosamsung-laptop: add true rfkill support for swsmi
Corentin Chary [Sat, 26 Nov 2011 10:00:09 +0000 (11:00 +0100)]
samsung-laptop: add true rfkill support for swsmi

The wireless status get and get commands seems to use one
byte per device. First byte is for wlan and third is for bluetooh,
we will have to find what the other are for.

Signed-off-by: Corentin Chary <corentincj@iksaif.net>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
12 years agosamsung-laptop: add keyboard backlight support
Corentin Chary [Sat, 26 Nov 2011 10:00:08 +0000 (11:00 +0100)]
samsung-laptop: add keyboard backlight support

Signed-off-by: Corentin Chary <corentincj@iksaif.net>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
12 years agosamsung-laptop: cleanup KConfig
Corentin Chary [Sat, 26 Nov 2011 10:00:07 +0000 (11:00 +0100)]
samsung-laptop: cleanup KConfig

Signed-off-by: Corentin Chary <corentincj@iksaif.net>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
12 years agosamsung-laptop: add usb charge support
Corentin Chary [Sat, 26 Nov 2011 10:00:06 +0000 (11:00 +0100)]
samsung-laptop: add usb charge support

Signed-off-by: Corentin Chary <corentincj@iksaif.net>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
12 years agosamsung-laptop: add battery life extender support
Corentin Chary [Sat, 26 Nov 2011 10:00:05 +0000 (11:00 +0100)]
samsung-laptop: add battery life extender support

Signed-off-by: Corentin Chary <corentincj@iksaif.net>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
12 years agosamsung-laptop: remove selftest
Corentin Chary [Sat, 26 Nov 2011 10:00:04 +0000 (11:00 +0100)]
samsung-laptop: remove selftest

We can now do the self test using debugfs, so remove the code
and keep the debug flag to enable more traces.

Signed-off-by: Corentin Chary <corentincj@iksaif.net>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
12 years agosamsung-laptop: add a small debugfs interface
Corentin Chary [Sat, 26 Nov 2011 10:00:03 +0000 (11:00 +0100)]
samsung-laptop: add a small debugfs interface

This allow to call arbitrary sabi commands wihout
modifying the driver at all. For example, setting
the keyboard backlight brightness to 5 using debugfs
interface can be done like that:

 ; Set the command
 echo 0x78 > command
 ; Set the data
 echo 0x0582 > d0
 ; Fill the rest with 0
 echo 0 > d1
 echo 0 > d2
 echo 0 > d3
 ; And issue the command
 cat call

Signed-off-by: Corentin Chary <corentincj@iksaif.net>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
12 years agosamsung-laptop: ehance SABI support
Corentin Chary [Sat, 26 Nov 2011 10:00:02 +0000 (11:00 +0100)]
samsung-laptop: ehance SABI support

* SABI command are on 16 bits, not 8
* SABI can read/write up to 11 byte of data
* There is not real difference between "get" and "set"
  commands, so refactorise the code of both functions

Signed-off-by: Corentin Chary <corentincj@iksaif.net>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
12 years agosamsung-laptop: use a sysfs group
Corentin Chary [Sat, 26 Nov 2011 10:00:01 +0000 (11:00 +0100)]
samsung-laptop: use a sysfs group

Will be usefull later when we will have more platform sysfs files
like battery_life_extender or usb_charge.

Signed-off-by: Corentin Chary <corentincj@iksaif.net>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
12 years agosamsung-laptop: don't handle backlight if handled by acpi/video
Corentin Chary [Sat, 26 Nov 2011 10:00:00 +0000 (11:00 +0100)]
samsung-laptop: don't handle backlight if handled by acpi/video

samsung-laptop is not at all related to ACPI, but since this interface
is not documented at all, and the driver has to use it at load to
understand how it works on the laptop, I think it's a good idea to
disable it if a better solution is available.

Signed-off-by: Corentin Chary <corentincj@iksaif.net>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
12 years agosamsung-laptop: move code into init/exit functions
Corentin Chary [Sat, 26 Nov 2011 09:59:59 +0000 (10:59 +0100)]
samsung-laptop: move code into init/exit functions

Create _init()/_exit() function for each subsystem, remove
the local struct samsung_laptop * and only keep a
struct platform_device * that can only be used in samsung_init()
and samsung_exit().

Signed-off-by: Corentin Chary <corentincj@iksaif.net>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
12 years agosamsung-laptop: put all local variables in a single structure
Corentin Chary [Sat, 26 Nov 2011 09:59:58 +0000 (10:59 +0100)]
samsung-laptop: put all local variables in a single structure

Even if this driver can only be loaded once, it is still a good
idea to create some kind of context structure.

Signed-off-by: Corentin Chary <corentincj@iksaif.net>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
12 years agoplatform-drivers-x86: convert drivers/platform/x86/* to use module_platform_driver()
Axel Lin [Sat, 26 Nov 2011 04:14:37 +0000 (12:14 +0800)]
platform-drivers-x86: convert drivers/platform/x86/* to use module_platform_driver()

This patch converts the drivers in drivers/platform/x86/* to use the
module_platform_driver() macro which makes the code smaller and a bit
simpler.

Cc: Hong Liu <hong.liu@intel.com>
Cc: Durgadoss R <durgadoss.r@intel.com>
Cc: Daniel Drake <dsd@laptop.org>
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
12 years agohdaps: Shut up gcc uninitialized variable warnings
Borislav Petkov [Thu, 24 Nov 2011 14:01:31 +0000 (15:01 +0100)]
hdaps: Shut up gcc uninitialized variable warnings

Turn off the following triggered with gcc 4.6.1 on Debian testing:

drivers/platform/x86/hdaps.c: In function ‘hdaps_temp2_show’:
drivers/platform/x86/hdaps.c:398:16: warning: ‘temp’ may be used uninitialized in this function [-Wuninitialized]
drivers/platform/x86/hdaps.c: In function ‘hdaps_temp1_show’:
drivers/platform/x86/hdaps.c:385:16: warning: ‘temp’ may be used uninitialized in this function [-Wuninitialized]

Cc: Frank Seidel <frank@f-seidel.de>
Cc: Matthew Garrett <mjg@redhat.com>
Cc: platform-driver-x86@vger.kernel.org
Signed-off-by: Borislav Petkov <bp@alien8.de>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
12 years agodell-laptop: add 3 machines that has touchpad LED
AceLan Kao [Thu, 17 Nov 2011 07:30:42 +0000 (15:30 +0800)]
dell-laptop: add 3 machines that has touchpad LED

Add "Vostro 3555", "Inspiron N311z", and "Inspiron M5110" into quirks,
so that they could have touchpad LED function work.

Signed-off-by: AceLan Kao <acelan.kao@canonical.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
12 years agoto fix scancodes returned by sony-laptop driver
John Hughes [Wed, 16 Nov 2011 18:51:57 +0000 (19:51 +0100)]
to fix scancodes returned by sony-laptop driver

Fix scancodes returned by driver to match scancodes used to remap keys.

(Before the patch FN/E returned scancode 0x1B, but to remap scancode
0x14 had to be used).

The scancodes returned by the sony-laptop driver for function keys did not
match the scancodes used to remap keys.  Also, since the scancode was sent
to the input subsystem after the mapped keysym the /lib/udev/keymap
utility was confused about which scancode to report for which keysym.

This patch fixes the driver so the correct scancode is shown for each
key.  It also adds to the documentation a description of where to find
the scancodes.

Signed-off-by: John Hughes <john@calva.com>
Acked-by: Dmitry Torokhov <dtor@mail.ru>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
12 years agointel_scu_ipc: Remove Moorestown support
Alan Cox [Wed, 16 Nov 2011 16:41:39 +0000 (16:41 +0000)]
intel_scu_ipc: Remove Moorestown support

All the production devices use the PC compatible version of this device so
don't use the SCU interfaces or the SCU firmware interfaces.

Delete lots of code and conditional paths

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
12 years agointel-oaktrail: switch to using use MODULE_DEVICE_TABLE
Dmitry Torokhov [Mon, 14 Nov 2011 08:27:00 +0000 (00:27 -0800)]
intel-oaktrail: switch to using use MODULE_DEVICE_TABLE

Use MODULE_DEVCE_TABLE instead of rolling MODULE_ALIAS by hand.

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
12 years agocompal-laptop: switch to using use MODULE_DEVICE_TABLE
Dmitry Torokhov [Mon, 14 Nov 2011 08:25:54 +0000 (00:25 -0800)]
compal-laptop: switch to using use MODULE_DEVICE_TABLE

Use MODULE_DEVCE_TABLE instead of rolling MODULE_ALIAS by hand.

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
12 years agodell-laptop: switch to using use MODULE_DEVICE_TABLE
Dmitry Torokhov [Mon, 14 Nov 2011 08:25:00 +0000 (00:25 -0800)]
dell-laptop: switch to using use MODULE_DEVICE_TABLE

Use MODULE_DEVCE_TABLE instead of rolling MODULE_ALIAS by hand.

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
12 years agodrivers/platform/x86/dell-laptop.c: Remove some unneeded break statements
Marcos Paulo de Souza [Thu, 10 Nov 2011 20:34:23 +0000 (18:34 -0200)]
drivers/platform/x86/dell-laptop.c: Remove some unneeded break statements

Signed-off-by: Marcos Paulo de Souza <marcos.mage@gmail.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
12 years agosony-laptop: Enable keyboard backlight by default
Josh Boyer [Wed, 2 Nov 2011 18:32:00 +0000 (14:32 -0400)]
sony-laptop: Enable keyboard backlight by default

When the keyboard backlight support was originally added, the commit said
to default it to on with a 10 second timeout.  That actually wasn't the
case, as the default value is commented out for the kbd_backlight parameter.
Because it is a static variable, it gets set to 0 by default without some
other form of initialization.

However, it seems the function to set the value wasn't actually called
immediately, so whatever state the keyboard was in initially would remain.
Then commit df410d522410e67660 was introduced during the 2.6.39 timeframe to
immediately set whatever value was present (as well as attempt to
restore/reset the state on module removal or resume).  That seems to have
now forced the light off immediately when the module is loaded unless
the option kbd_backlight=1 is specified.

Let's enable it by default again (for the first time).  This should solve
https://bugzilla.redhat.com/show_bug.cgi?id=728478

Signed-off-by: Josh Boyer <jwboyer@redhat.com>
Acked-by: Mattia Dongili <malattia@linux.it>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
12 years agoLinux 3.3
Linus Torvalds [Sun, 18 Mar 2012 23:15:34 +0000 (16:15 -0700)]
Linux 3.3

12 years agoDon't limit non-nested epoll paths
Jason Baron [Fri, 16 Mar 2012 20:34:03 +0000 (16:34 -0400)]
Don't limit non-nested epoll paths

Commit 28d82dc1c4ed ("epoll: limit paths") that I did to limit the
number of possible wakeup paths in epoll is causing a few applications
to longer work (dovecot for one).

The original patch is really about limiting the amount of epoll nesting
(since epoll fds can be attached to other fds). Thus, we probably can
allow an unlimited number of paths of depth 1. My current patch limits
it at 1000. And enforce the limits on paths that have a greater depth.

This is captured in: https://bugzilla.redhat.com/show_bug.cgi?id=681578

Signed-off-by: Jason Baron <jbaron@redhat.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
12 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Linus Torvalds [Sun, 18 Mar 2012 02:22:24 +0000 (19:22 -0700)]
Merge git://git./linux/kernel/git/davem/net

Pull networking changes from David Miller:
 "1) icmp6_dst_alloc() returns NULL instead of ERR_PTR() leading to
     crashes, particularly during shutdown.  Reported by Dave Jones and
     fixed by Eric Dumazet.

  2) hyperv and wimax/i2400m return NETDEV_TX_BUSY when they have
     already freed the SKB, which causes crashes as to the caller this
     means requeue the packet.  Fixes from Eric Dumazet.

  3) usbnet driver doesn't allocate the right amount of headroom on
     fresh RX SKBs, fix from Eric Dumazet.

  4) Fix regression in ip6_mc_find_dev_rcu(), as an RCU lookup it
     abolutely should not take a reference to 'dev', this leads to
     leaks.  Fix from RonQing Li.

  5) Fix netfilter ctnetlink race between delete and timeout expiration.
     From Pablo Neira Ayuso.

  6) Revert SFQ change which causes regressions, specifically queueing
     to tail can lead to unavoidable flow starvation.  From Eric
     Dumazet.

  7) Fix a memory leak and a crash on corrupt firmware files in bnx2x,
     from Michal Schmidt."

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net:
  netfilter: ctnetlink: fix race between delete and timeout expiration
  ipv6: Don't dev_hold(dev) in ip6_mc_find_dev_rcu.
  wimax/i2400m: fix erroneous NETDEV_TX_BUSY use
  net/hyperv: fix erroneous NETDEV_TX_BUSY use
  net/usbnet: reserve headroom on rx skbs
  bnx2x: fix memory leak in bnx2x_init_firmware()
  bnx2x: fix a crash on corrupt firmware file
  sch_sfq: revert dont put new flow at the end of flows
  ipv6: fix icmp6_dst_alloc()

12 years agoMerge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sat, 17 Mar 2012 16:54:16 +0000 (09:54 -0700)]
Merge branch 'perf-urgent-for-linus' of git://git./linux/kernel/git/tip/tip

Pull perf fixes from Ingo Molnar.

* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf tools, x86: Build perf on older user-space as well
  perf tools: Use scnprintf where applicable
  perf tools: Incorrect use of snprintf results in SEGV

12 years agonetfilter: ctnetlink: fix race between delete and timeout expiration
Pablo Neira Ayuso [Fri, 16 Mar 2012 02:00:34 +0000 (02:00 +0000)]
netfilter: ctnetlink: fix race between delete and timeout expiration

Kerin Millar reported hardlockups while running `conntrackd -c'
in a busy firewall. That system (with several processors) was
acting as backup in a primary-backup setup.

After several tries, I found a race condition between the deletion
operation of ctnetlink and timeout expiration. This patch fixes
this problem.

Tested-by: Kerin Millar <kerframil@gmail.com>
Reported-by: Kerin Millar <kerframil@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agoipv6: Don't dev_hold(dev) in ip6_mc_find_dev_rcu.
RongQing.Li [Thu, 15 Mar 2012 22:54:14 +0000 (22:54 +0000)]
ipv6: Don't dev_hold(dev) in ip6_mc_find_dev_rcu.

ip6_mc_find_dev_rcu() is called with rcu_read_lock(), so don't
need to dev_hold().
With dev_hold(), not corresponding dev_put(), will lead to leak.

[ bug introduced in 96b52e61be1 (ipv6: mcast: RCU conversions) ]

Signed-off-by: RongQing.Li <roy.qing.li@gmail.com>
Acked-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agoMerge branch 'akpm' (more patches from Andrew)
Linus Torvalds [Sat, 17 Mar 2012 00:14:55 +0000 (17:14 -0700)]
Merge branch 'akpm' (more patches from Andrew)

Merge some more email patches from Andrew Morton:
 "A couple of nilfs fixes"

* emailed from Andrew Morton <akpm@linux-foundation.org>:
  nilfs2: fix NULL pointer dereference in nilfs_load_super_block()
  nilfs2: clamp ns_r_segments_percentage to [1, 99]

12 years agonilfs2: fix NULL pointer dereference in nilfs_load_super_block()
Ryusuke Konishi [Sat, 17 Mar 2012 00:08:39 +0000 (17:08 -0700)]
nilfs2: fix NULL pointer dereference in nilfs_load_super_block()

According to the report from Slicky Devil, nilfs caused kernel oops at
nilfs_load_super_block function during mount after he shrank the
partition without resizing the filesystem:

 BUG: unable to handle kernel NULL pointer dereference at 00000048
 IP: [<d0d7a08e>] nilfs_load_super_block+0x17e/0x280 [nilfs2]
 *pde = 00000000
 Oops: 0000 [#1] PREEMPT SMP
 ...
 Call Trace:
  [<d0d7a87b>] init_nilfs+0x4b/0x2e0 [nilfs2]
  [<d0d6f707>] nilfs_mount+0x447/0x5b0 [nilfs2]
  [<c0226636>] mount_fs+0x36/0x180
  [<c023d961>] vfs_kern_mount+0x51/0xa0
  [<c023ddae>] do_kern_mount+0x3e/0xe0
  [<c023f189>] do_mount+0x169/0x700
  [<c023fa9b>] sys_mount+0x6b/0xa0
  [<c04abd1f>] sysenter_do_call+0x12/0x28
 Code: 53 18 8b 43 20 89 4b 18 8b 4b 24 89 53 1c 89 43 24 89 4b 20 8b 43
 20 c7 43 2c 00 00 00 00 23 75 e8 8b 50 68 89 53 28 8b 54 b3 20 <8b> 72
 48 8b 7a 4c 8b 55 08 89 b3 84 00 00 00 89 bb 88 00 00 00
 EIP: [<d0d7a08e>] nilfs_load_super_block+0x17e/0x280 [nilfs2] SS:ESP 0068:ca9bbdcc
 CR2: 0000000000000048

This turned out due to a defect in an error path which runs if the
calculated location of the secondary super block was invalid.

This patch fixes it and eliminates the reported oops.

Reported-by: Slicky Devil <slicky.dvl@gmail.com>
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Tested-by: Slicky Devil <slicky.dvl@gmail.com>
Cc: <stable@vger.kernel.org> [2.6.30+]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
12 years agonilfs2: clamp ns_r_segments_percentage to [1, 99]
Haogang Chen [Sat, 17 Mar 2012 00:08:38 +0000 (17:08 -0700)]
nilfs2: clamp ns_r_segments_percentage to [1, 99]

ns_r_segments_percentage is read from the disk.  Bogus or malicious
value could cause integer overflow and malfunction due to meaningless
disk usage calculation.  This patch reports error when mounting such
bogus volumes.

Signed-off-by: Haogang Chen <haogangchen@gmail.com>
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
12 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris...
Linus Torvalds [Sat, 17 Mar 2012 00:04:02 +0000 (17:04 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/jmorris/linux-security

Pull maintainer update from James Morris:
 "Please pull this patch which adds Serge as maintainer of the
  capabilities code, as discussed on lwn and the lsm list.

  New capabilities must be signed off by the maintainer, and new uses of
  any capabilities should at be cc'd to the maintainer."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security:
  MAINTAINERS: Add Serge as maintainer of capabilities

12 years agoMerge tag 'for-linus' of git://linux-c6x.org/git/projects/linux-c6x-upstreaming
Linus Torvalds [Sat, 17 Mar 2012 00:03:15 +0000 (17:03 -0700)]
Merge tag 'for-linus' of git://linux-c6x.org/git/projects/linux-c6x-upstreaming

Pull c6x bugfix from Mark Salter:
 "Remove dead code from entry.S which causes a build failure when using
  a newer assembler (v2.22 complains about it, v2.20 ignores it)."

* tag 'for-linus' of git://linux-c6x.org/git/projects/linux-c6x-upstreaming:
  C6X: remove dead code from entry.S

12 years agoafs: Remote abort can cause BUG in rxrpc code
Anton Blanchard [Fri, 16 Mar 2012 10:28:19 +0000 (10:28 +0000)]
afs: Remote abort can cause BUG in rxrpc code

When writing files to afs I sometimes hit a BUG:

kernel BUG at fs/afs/rxrpc.c:179!

With a backtrace of:

afs_free_call
afs_make_call
afs_fs_store_data
afs_vnode_store_data
afs_write_back_from_locked_page
afs_writepages_region
afs_writepages

The cause is:

ASSERT(skb_queue_empty(&call->rx_queue));

Looking at a tcpdump of the session the abort happens because we
are exceeding our disk quota:

rx abort fs reply store-data error diskquota exceeded (32)

So the abort error is valid. We hit the BUG because we haven't
freed all the resources for the call.

By freeing any skbs in call->rx_queue before calling afs_free_call
we avoid hitting leaking memory and avoid hitting the BUG.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: David Howells <dhowells@redhat.com>
Cc: <stable@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
12 years agoafs: Read of file returns EBADMSG
Anton Blanchard [Fri, 16 Mar 2012 10:28:07 +0000 (10:28 +0000)]
afs: Read of file returns EBADMSG

A read of a large file on an afs mount failed:

# cat junk.file > /dev/null
cat: junk.file: Bad message

Looking at the trace, call->offset wrapped since it is only an
unsigned short. In afs_extract_data:

        _enter("{%u},{%zu},%d,,%zu", call->offset, len, last, count);
...

        if (call->offset < count) {
                if (last) {
                        _leave(" = -EBADMSG [%d < %zu]", call->offset, count);
                        return -EBADMSG;
                }

Which matches the trace:

[cat   ] ==> afs_extract_data({65132},{524},1,,65536)
[cat   ] <== afs_extract_data() = -EBADMSG [0 < 65536]

call->offset went from 65132 to 0. Fix this by making call->offset an
unsigned int.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: David Howells <dhowells@redhat.com>
Cc: <stable@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
12 years agoC6X: remove dead code from entry.S
Mark Salter [Fri, 16 Mar 2012 13:27:57 +0000 (09:27 -0400)]
C6X: remove dead code from entry.S

The ENDPROC() on sys_fadvise64_c6x() in arch/c6x/kernel/entry.S is
outside of the conditional block with the matching ENTRY() macro. This
leads a newer (v2.22 vs. v2.20) assembler to complain:

  /tmp/ccGZBaPT.s: Assembler messages:
  /tmp/ccGZBaPT.s: Error: .size expression for sys_fadvise64_c6x does not evaluate to a constant

The conditional block became dead code when c6x switched to generic
unistd.h and should be removed along with the offending ENDPROC().

Signed-off-by: Mark Salter <msalter@redhat.com>
Acked-by: David Howells <dhowells@redhat.com>
12 years agowimax/i2400m: fix erroneous NETDEV_TX_BUSY use
Eric Dumazet [Wed, 14 Mar 2012 09:21:44 +0000 (09:21 +0000)]
wimax/i2400m: fix erroneous NETDEV_TX_BUSY use

A driver start_xmit() method cannot free skb and return NETDEV_TX_BUSY,
since caller is going to reuse freed skb.

In fact netif_tx_stop_queue() / netif_stop_queue() is needed before
returning NETDEV_TX_BUSY or you can trigger a ksoftirqd fatal loop.

In case of memory allocation error, only safe way is to drop the packet
and return NETDEV_TX_OK

Also increments tx_dropped counter

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Cc: Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agonet/hyperv: fix erroneous NETDEV_TX_BUSY use
Eric Dumazet [Wed, 14 Mar 2012 08:53:34 +0000 (08:53 +0000)]
net/hyperv: fix erroneous NETDEV_TX_BUSY use

A driver start_xmit() method cannot free skb and return NETDEV_TX_BUSY,
since caller is going to reuse freed skb.

This is mostly a revert of commit bf769375c (staging: hv: fix the return
status of netvsc_start_xmit())

In fact netif_tx_stop_queue() / netif_stop_queue() is needed before
returning NETDEV_TX_BUSY or you can trigger a ksoftirqd fatal loop.

In case of memory allocation error, only safe way is to drop the packet
and return NETDEV_TX_OK

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Cc: "K. Y. Srinivasan" <kys@microsoft.com>
Cc: Haiyang Zhang <haiyangz@microsoft.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agonet/usbnet: reserve headroom on rx skbs
Eric Dumazet [Wed, 14 Mar 2012 06:56:25 +0000 (06:56 +0000)]
net/usbnet: reserve headroom on rx skbs

network drivers should reserve some headroom on incoming skbs so that we
dont need expensive reallocations, eg forwarding packets in tunnels.

This NET_SKB_PAD padding is done in various helpers, like
__netdev_alloc_skb_ip_align() in this patch, combining NET_SKB_PAD and
NET_IP_ALIGN magic.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Cc: Oliver Neukum <oneukum@suse.de>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agobnx2x: fix memory leak in bnx2x_init_firmware()
Michal Schmidt [Thu, 15 Mar 2012 14:08:29 +0000 (14:08 +0000)]
bnx2x: fix memory leak in bnx2x_init_firmware()

When cycling the interface down and up, bnx2x_init_firmware() knows that
the firmware is already loaded, but nevertheless it allocates certain
arrays anew (init_data, init_ops, init_ops_offsets, iro_arr). The old
arrays are leaked.

Fix the leaks by returning early if the firmware was already loaded.
Because if the firmware is loaded, so are the arrays.

Signed-off-by: Michal Schmidt <mschmidt@redhat.com>
Acked-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agobnx2x: fix a crash on corrupt firmware file
Michal Schmidt [Thu, 15 Mar 2012 14:08:28 +0000 (14:08 +0000)]
bnx2x: fix a crash on corrupt firmware file

If the requested firmware is deemed corrupt and then released, reset the
pointer to NULL in order to avoid double-freeing it in
bnx2x_release_firmware() or dereferencing it in bnx2x_init_firmware().

Signed-off-by: Michal Schmidt <mschmidt@redhat.com>
Acked-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agosch_sfq: revert dont put new flow at the end of flows
Eric Dumazet [Tue, 13 Mar 2012 18:04:25 +0000 (18:04 +0000)]
sch_sfq: revert dont put new flow at the end of flows

This reverts commit d47a0ac7b6 (sch_sfq: dont put new flow at the end of
flows)

As Jesper found out, patch sounded great but has bad side effects.

In stress situation, pushing new flows in front of the queue can prevent
old flows doing any progress. Packets can stay in SFQ queue for
unlimited amount of time.

It's possible to add heuristics to limit this problem, but this would
add complexity outside of SFQ scope.

A more sensible answer to Dave Taht concerns (who reported the issued I
tried to solve in original commit) is probably to use a qdisc hierarchy
so that high prio packets dont enter a potentially crowded SFQ qdisc.

Reported-by: Jesper Dangaard Brouer <jdb@comx.dk>
Cc: Dave Taht <dave.taht@gmail.com>
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agoipv6: fix icmp6_dst_alloc()
Eric Dumazet [Wed, 14 Mar 2012 21:13:11 +0000 (21:13 +0000)]
ipv6: fix icmp6_dst_alloc()

commit 87a115783 ( ipv6: Move xfrm_lookup() call down into
icmp6_dst_alloc().) forgot to convert one error path, leading
to crashes in mld_sendpack()

Many thanks to Dave Jones for providing a very complete bug report.

Reported-by: Dave Jones <davej@redhat.com>
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agoMAINTAINERS: Add Serge as maintainer of capabilities
James Morris [Fri, 16 Mar 2012 01:05:48 +0000 (12:05 +1100)]
MAINTAINERS: Add Serge as maintainer of capabilities

Add Serge as maintainer of capabilities, per suggestion on LWN:
http://lwn.net/Articles/486306/

Signed-off-by: James Morris <james.l.morris@oracle.com>
12 years agoMerge branch 'akpm' (Andrew's patch-bomb)
Linus Torvalds [Fri, 16 Mar 2012 00:16:22 +0000 (17:16 -0700)]
Merge branch 'akpm' (Andrew's patch-bomb)

Merge patches from Andrew Morton:
 "Nine patches - some bug fixes and some MAINTAINERS fiddling."

* emailed from Andrew Morton <akpm@linux-foundation.org>:
  drivers/video/backlight/s6e63m0.c: fix corruption storing gamma mode
  MAINTAINERS: add entry for exynos mipi display drivers
  MAINTAINERS: fix link to Gustavo Padovans tree
  MAINTAINERS: add Johan to Bluetooth maintainers
  MAINTAINERS: Gustavo has moved
  prctl: use CAP_SYS_RESOURCE for PR_SET_MM option
  rapidio/tsi721: fix bug in register offset definitions
  MAINTAINERS: update ST's Mailing list for SPEAr
  memcg: free mem_cgroup by RCU to fix oops

12 years agoMerge branch 'i2c-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvar...
Linus Torvalds [Fri, 16 Mar 2012 00:14:35 +0000 (17:14 -0700)]
Merge branch 'i2c-for-linus' of git://git./linux/kernel/git/jdelvare/staging

Pull i2c subsystem fixes from Jean Delvare.

* 'i2c-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging:
  i2c-algo-bit: Fix spurious SCL timeouts under heavy load
  i2c-core: Comment says "transmitted" but means "received"

12 years agoMerge tag 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck...
Linus Torvalds [Fri, 16 Mar 2012 00:13:39 +0000 (17:13 -0700)]
Merge tag 'hwmon-for-linus' of git://git./linux/kernel/git/groeck/linux-staging

Pull hwmon fixes from Guenter Roeck.

* tag 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
  hwmon: (zl6100) Enable interval between chip accesses for all chips
  hwmon: (w83627ehf) Describe undocumented pwm attributes
  hwmon: (w83627ehf) Fix temp2 source for W83627UHG
  hwmon: (w83627ehf) Fix memory leak in probe function
  hwmon: (w83627ehf) Fix writing into fan_stop_time for NCT6775F/NCT6776F

12 years agoMerge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
Linus Torvalds [Fri, 16 Mar 2012 00:07:25 +0000 (17:07 -0700)]
Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux

Pull drm exynos/intel updates from Dave Airlie:
 "Two minor updates from Jesse for Intel SNB fixes, and a few fixes from
  Samsung for exynos.  The pull req has Alan's commit in it since Intel
  based their tree on my tree at that time, but it all seems fine wrt
  merging."

* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
  drm exynos: use drm_fb_helper_set_par directly
  drm/exynos: Fix fb_videomode <-> drm_mode_modeinfo conversion
  drm/exynos: fix runtime_pm fimd device state on probe
  drm/exynos: use correct 'exynos-drm' name for platform device
  drm/i915: support 32 bit BGR formats in sprite planes
  drm/i915: fix color order for BGR formats on SNB
  drm/gma500: Fix Cedarview boot failures in 3.3-rc

12 years agoMerge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab...
Linus Torvalds [Fri, 16 Mar 2012 00:06:05 +0000 (17:06 -0700)]
Merge branch 'v4l_for_linus' of git://git./linux/kernel/git/mchehab/linux-media

Pull media fixes from Mauro Carvalho Chehab:
 "For 4 fixes for 3.3 (all trivial):
       - uvc video driver: fixes a division by zero;
       - davinci: add module.h to fix compilation;
       - smsusb: fix the delivery system setting;
       - smsdvb: the get_frontend implementation there is broken.

  The smsdvb patch has 127 lines, but it is trivial: instead of
  returning a cache of the set_frontend (with is wrong, as it doesn't
  have the updated values for the data, and the implementation there is
  buggy), it copies the information of the detected DVB parameters from
  the smsdvb private structures into the corresponding DVBv5 struct
  fields."

* 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media:
  [media] smsdvb: fix get_frontend
  [media] smsusb: fix the default delivery system setting
  [media] media: davinci: added module.h to resolve unresolved macros
  [media] [FOR,v3.3] uvcvideo: Avoid division by 0 in timestamp calculation

12 years agoMerge branch '3.3-urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target...
Linus Torvalds [Fri, 16 Mar 2012 00:04:56 +0000 (17:04 -0700)]
Merge branch '3.3-urgent' of git://git./linux/kernel/git/nab/target-pending

Pull target fixes from Nicholas Bellinger:
 "This series addresses two recently reported regression bugs related to
  legacy SCSI reservation usage in target core, and iscsi-target
  reservation conflict handling.

  The second patch in particular addresses possible data-corruption with
  SCSI reservations that is specific to iscsi-target fabric LUNs with
  multiple client writers.  Both patches need to go into v3.2 stable
  ASAP, and the branch based on the last target-pending/3.3-rc-fixes
  HEAD.

  Again, thanks to Martin Svec for his help to identify and address this
  regression bug with iscsi-target."

* '3.3-urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending:
  iscsi-target: Fix reservation conflict -EBUSY response handling bug
  target: Fix compatible reservation handling (CRH=1) with legacy RESERVE/RELEASE

12 years agodrivers/video/backlight/s6e63m0.c: fix corruption storing gamma mode
Dan Carpenter [Thu, 15 Mar 2012 22:17:12 +0000 (15:17 -0700)]
drivers/video/backlight/s6e63m0.c: fix corruption storing gamma mode

strict_strtoul() writes a long but ->gamma_mode only has space to store an
int, so on 64 bit systems we end up scribbling over ->gamma_table_count as
well.  I've changed it to use kstrtouint() instead.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
12 years agoMAINTAINERS: add entry for exynos mipi display drivers
Donghwa Lee [Thu, 15 Mar 2012 22:17:11 +0000 (15:17 -0700)]
MAINTAINERS: add entry for exynos mipi display drivers

I'd like to add Inki Dae, Donghwa Lee and Kyungmin Park as maintainers
who developers for exynos mipi display drivers for
video/driver/exynos/exynos_mipi* and include/video/exynos_mipi*.

Signed-off-by: Donghwa Lee <dh09.lee@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Cc: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Cc: Richard Purdie <rpurdie@rpsys.net>
Cc: Kukjin Kim <kgene.kim@samsung.com>
Cc: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
12 years agoMAINTAINERS: fix link to Gustavo Padovans tree
Johan Hedberg [Thu, 15 Mar 2012 22:17:11 +0000 (15:17 -0700)]
MAINTAINERS: fix link to Gustavo Padovans tree

Gustavo's tree is called just bluetooth.git and not bluetooth-2.6.git
anymore.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Cc: Marcel Holtmann <marcel@holtmann.org>
Cc: "Gustavo F. Padovan" <padovan@profusion.mobi>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>