2
0
mirror of https://github.com/edk2-porting/linux-next.git synced 2025-01-02 02:34:05 +08:00
Commit Graph

348189 Commits

Author SHA1 Message Date
Michel JAOUEN
01ec8c5423 pm2301: Provide u9540 support for the pm2301 charger
AC charger driver for the DB9540 based platforms.

Signed-off-by: Rajkumar Kasirajan <rajkumar.kasirajan@stericsson.com>
Signed-off-by: Loic Pallardy <loic.pallardy@stericsson.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Reviewed-by: Michel JAOUEN <michel.jaouen@stericsson.com>
Tested-by: Michel JAOUEN <michel.jaouen@stericsson.com>
2013-01-23 11:33:02 +00:00
Andrew Lunn
8fd526fd18 qnap-poweroff: Fix license string
GPLv2+ is not a valid license string. Replace it with one that is.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Anton Vorontsov <anton@enomsg.org>
2013-01-19 18:04:04 -08:00
Lee Jones
41ce25657b ab8500_fg: Remove pointless round_jiffies() call
As HZ is a full-second, there is little point in rounding it.
Let's save a few cycles by using HZ directly.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Anton Vorontsov <anton@enomsg.org>
2013-01-15 17:44:46 -08:00
Paer-Olof Haakansson
f902dadc12 ab8500_fg: Overflow in current calculation
When calculating the average current the nominator will
overflow when the charging current is high.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Henrik Sölver <henrik.solver@stericsson.com>
Reviewed-by: Par-Olof HAKANSSON <par-olof.hakansson@stericsson.com>
Reviewed-by: Jonas ABERG <jonas.aberg@stericsson.com>
Tested-by: Par-Olof HAKANSSON <par-olof.hakansson@stericsson.com>
Signed-off-by: Anton Vorontsov <anton@enomsg.org>
2013-01-15 17:44:44 -08:00
Marcus Cooper
4b45f4a9cd ab8500_charger: Adds support for legacy USB chargers
A Legacy USB charger should be handled directly by the charger
driver.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Marcus Cooper <marcus.xm.cooper@stericsson.com>
Reviewed-by: Karl KOMIEROWSKI <karl.komierowski@stericsson.com>
Reviewed-by: Jonas ABERG <jonas.aberg@stericsson.com>
Signed-off-by: Anton Vorontsov <anton@enomsg.org>
2013-01-15 17:44:42 -08:00
Marcus Cooper
377345c2be ab8500_charger: Remove unused defines
Cleanup of the ab8500_charger driver.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Marcus Cooper <marcus.xm.cooper@stericsson.com>
Reviewed-by: Karl KOMIEROWSKI <karl.komierowski@stericsson.com>
Signed-off-by: Anton Vorontsov <anton@enomsg.org>
2013-01-15 17:44:40 -08:00
Hakan Berg
8bcf3b39a8 ab8500_fg: Added support for BATT_OVV
Add support for the battery over-voltage situation

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Hakan Berg <hakan.berg@stericsson.com>
Reviewed-by: Karl KOMIEROWSKI <karl.komierowski@stericsson.com>
Signed-off-by: Anton Vorontsov <anton@enomsg.org>
2013-01-15 17:44:38 -08:00
Hakan Berg
0cdaf9a900 ab8500_btemp: Remove superfluous BTEMP thermal comp
BTEMP thermal compensation factor times 10 is applied in two places, probe
and get_property. Removed from probe.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Hakan Berg <hakan.berg@stericsson.com>
Reviewed-by: Karl KOMIEROWSKI <karl.komierowski@stericsson.com>
Signed-off-by: Anton Vorontsov <anton@enomsg.org>
2013-01-15 17:44:36 -08:00
pender01
6eaf8740da ab8500_fg: Round capacity output
Round the capacity values for better enduser experience.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: pender01 <peter.enderborg@stericsson.com>
Reviewed-by: Jonas ABERG <jonas.aberg@stericsson.com>
Tested-by: Marcus COOPER <marcus.xm.cooper@stericsson.com>
Signed-off-by: Anton Vorontsov <anton@enomsg.org>
2013-01-15 17:44:34 -08:00
Hakan Berg
74a8e349b1 ab8500_bm: Adds support for Car/Travel Adapters
The Travel and Carkit adapter should be handled directly by
the charger driver.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Marcus Cooper <marcus.xm.cooper@stericsson.com>
Reviewed-by: Jonas ABERG <jonas.aberg@stericsson.com>
Signed-off-by: Anton Vorontsov <anton@enomsg.org>
2013-01-15 17:44:32 -08:00
Hakan Berg
d36e3e6d50 ab8500_btemp: Ignore false btemp low interrupt
Ignore the low btemp interrupts for ab8500 3.0 and 3.3

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Hakan Berg <hakan.berg@stericsson.com>
Reviewed-by: Jonas ABERG <jonas.aberg@stericsson.com>
Tested-by: Marcus COOPER <marcus.xm.cooper@stericsson.com>
Signed-off-by: Anton Vorontsov <anton@enomsg.org>
2013-01-15 17:44:30 -08:00
Lee Jones
5b41aa9f2b ab8500_btemp: Allign battery temperature resolution with the framework
The Linux Power Supply framework expects battery temperatures to have
a resolution of 0.1 degree Celsius; however, the AB8500 btemp driver
supplies a battery temperature resolution of 1 degree Celsius. We
therefore have to use a factor 10 on the measured values.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Anton Vorontsov <anton@enomsg.org>
2013-01-15 17:44:28 -08:00
Rickard Andersson
129d583b44 ab8500_fg: Balance IRQ enable
In case of time out error IRQ needs to be disabled
otherwise we will get unbalanced enable/disable pairs.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Rickard Andersson <rickard.andersson@stericsson.com>
Reviewed-by: Jonas ABERG <jonas.aberg@stericsson.com>
Signed-off-by: Anton Vorontsov <anton@enomsg.org>
2013-01-15 17:44:26 -08:00
Marcus Cooper
ea40240178 ab8500_bm: Recharge condition not optimal for battery
Today the battery recharge is determined with a voltage threshold. This
voltage threshold is only valid when the battery is relaxed. In charging
algorithm the voltage read is the loaded battery voltage and no
compensation is done to get the relaxed voltage. When maintenance
charging is not selected, this makes the recharging condition to almost
immediately activate when there is a discharge present on the battery.

Depending on which vendor the battery comes from this behavior can wear
out the battery much faster than normal.

The fuelgauge driver is responsible to monitor the actual battery
capacity and is able to estimate the remaining capacity. It is better to
use the remaining capacity as a limit to determine when battery should
be recharged.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Marcus Cooper <marcus.xm.cooper@stericsson.com>
Reviewed-by: Hakan BERG <hakan.berg@stericsson.com>
Reviewed-by: Jonas ABERG <jonas.aberg@stericsson.com>
Signed-off-by: Anton Vorontsov <anton@enomsg.org>
2013-01-15 17:43:46 -08:00
Jonas Aaberg
a864c5a869 ab8500_charger: Handle gpadc errors
Gracefully handle gpadc conversion errors.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Jonas Aaberg <jonas.aberg@stericsson.com>
Reviewed-by: Johan BJORNSTEDT <johan.bjornstedt@stericsson.com>
Signed-off-by: Anton Vorontsov <anton@enomsg.org>
2013-01-15 17:35:21 -08:00
Jonas Aaberg
9a0bd070fd ab8500_fg: Replace msleep() with usleep_range() for greater accuracy
Doing so provides a greater degree of accuracy when dealing with
time-frames between 1us and 20ms. msleep() is only accurate for
wake-ups greater than 20ms.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Jonas ABERG <jonas.aberg@stericsson.com>
Reviewed-by: Johan BJORNSTEDT <johan.bjornstedt@stericsson.com>
Signed-off-by: Anton Vorontsov <anton@enomsg.org>
2013-01-15 17:35:19 -08:00
Lee Jones
b269fff4f9 ab8500_charger: Detect charger removal
Add two new work queues to provide USB and AC charger disconnect
detection.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Anton Vorontsov <anton@enomsg.org>
2013-01-15 17:35:12 -08:00
Johan Bjornstedt
3988a4df34 ab8500_bm: Skip first CCEOC irq for instant current
When enabling the CCEOC irq we might get false interrupt
from ab8500-driver due to the latched value will be saved
and interpreted as an IRQ when enabled

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Johan Bjornstedt <johan.bjornstedt@stericsson.com>
Signed-off-by: Henrik Solver <henrik.solver@stericsson.com>
Reviewed-by: Karl KOMIEROWSKI <karl.komierowski@stericsson.com>
Signed-off-by: Anton Vorontsov <anton@enomsg.org>
2013-01-15 17:10:17 -08:00
Paer-Olof Haakansson
defbfa9cf8 ab8500_charger: Rename the power_loss function
Rename the ab8500_power_loss_handling function to a more
descriptive name ab8500_enable_disable_sw_fallback

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Robert Marklund <robert.marklund@stericsson.com>
Reviewed-by: Par-Olof HAKANSSON <par-olof.hakansson@stericsson.com>
Reviewed-by: Karl KOMIEROWSKI <karl.komierowski@stericsson.com>
Tested-by: Par-Olof HAKANSSON <par-olof.hakansson@stericsson.com>
Signed-off-by: Anton Vorontsov <anton@enomsg.org>
2013-01-15 17:10:16 -08:00
Nickolai Zeldovich
c4f3422630 da9052-battery: Avoid out-of-range array access
Avoid accessing vc_tbl_ref[3], which is one past the end of that array, in
da9052_determine_vc_tbl_index(), by adjusting the loop bound.

(Hint: there is 'i + 1' inside the loop.)

Signed-off-by: Nickolai Zeldovich <nickolai@csail.mit.edu>
Signed-off-by: Anton Vorontsov <anton@enomsg.org>
2013-01-06 14:34:26 -08:00
Devendra Naga
00edfc65c2 max17040_battery: Use devm_kzalloc
use devm_kzalloc and no need of error path and unload frees.

Signed-off-by: Devendra Naga <devendra.aaru@gmail.com>
Signed-off-by: Anton Vorontsov <anton@enomsg.org>
2013-01-06 14:18:58 -08:00
Kim, Milo
d5c2b14cb2 lp8788-charger: Fix a parent device in kernel messages
Use 'platform_device' in kernel messages rather than i2c client device
node. lp8788_update_charger_params() needs additional argument, 'pdev'.
Then, remove unnecessary lp8788 private data in lp8788_irq_register().

Signed-off-by: Milo(Woogyom) Kim <milo.kim@ti.com>
Signed-off-by: Anton Vorontsov <anton@enomsg.org>
2013-01-06 14:18:43 -08:00
Kim, Milo
05ac539b4f lp8788-charger: Fix a parent device in _probe()
The lp8788-charger is a platform driver of lp8788-mfd. The platform device
is allocated when mfd_add_devices() is called in lp8788-mfd. On the other
hand, 'lp->dev' is the i2c client device.

Therefore, this 'platform_device' is a proper parent device in case of
resource managed mem alloc and device kernel message.

Signed-off-by: Milo(Woogyom) Kim <milo.kim@ti.com>
Signed-off-by: Anton Vorontsov <anton@enomsg.org>
2013-01-06 14:18:19 -08:00
Andrew Lunn
ffd8f9a727 power/reset: Add a new driver implementing 'power off by restarting'
Some devices, Buffalo Linkstation LS-XHL and LS-CHLv2 for example,
power-off by restarting to letting u-boot hold the SoC until the user
presses a key. Add a generic driver to implement this. It binds a function
to pm_power_off, which calls arm_pm_restart.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Tested-by: Michael Walle <michael@walle.cc>
Signed-off-by: Anton Vorontsov <anton@enomsg.org>
2013-01-06 14:00:31 -08:00
Andrew Lunn
e8fc721a9a power/reset: Add a new driver to turn QNAP board power off
The QNAP NAS boxes have a microcontroller attached to the SoCs second
serial port. By sending it a simple command, it will turn the power for
the board off. This driver registers a function for pm_power_off to send
such a command.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Anton Vorontsov <anton@enomsg.org>
2013-01-06 14:00:23 -08:00
Kim, Milo
22f1229fe9 MAINTAINERS: Add LP8788 MFD driver entry
Cc: Anton Vorontsov <cbou@mail.ru>
Cc: Bryan Wu <cooloney@gmail.com>
Cc: Jonathan Cameron <jic23@cam.ac.uk>
Cc: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: Milo(Woogyom) Kim <milo.kim@ti.com>
Acked-by: Bryan Wu <cooloney@gmail.com>
Signed-off-by: Anton Vorontsov <anton@enomsg.org>
2013-01-06 13:20:07 -08:00
Kim, Milo
faf13f6dc8 MAINTAINERS: Add LP8727 charger driver entry
Cc: Anton Vorontsov <cbou@mail.ru>
Cc: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Milo(Woogyom) Kim <milo.kim@ti.com>
Signed-off-by: Anton Vorontsov <anton@enomsg.org>
2013-01-06 13:18:20 -08:00
Julia Lawall
0853699252 88pm860x_battery: Eliminate possible references to released resources
devm_kzalloc should not be followed by kfree, as this results in a double
free.  The problem was found using the following semantic match
(http://coccinelle.lip6.fr/):

// <smpl>
@@
expression x,e;
@@
x = devm_kzalloc(...)
... when != x = e
?-kfree(x,...);
// </smpl>

Furthermore, in the remove function, the calls to free_irq are moved up to
prevent a possible reference in the interrupt handler to resources freed by
power_supply_unregister.

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Anton Vorontsov <anton@enomsg.org>
2013-01-06 12:46:23 -08:00
Sachin Kamat
8feffd1099 ab8500_charger: Use devm_regulator_get API
devm_regulator_get() is device managed and makes error handling and code
cleanup simpler.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Acked-by: Arun Murthy <arun.murthy@stericsson.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Anton Vorontsov <anton@enomsg.org>
2013-01-05 19:07:22 -08:00
NeilBrown
bde83b9a6b bq27x00_battery: Fix bugs introduced with BQ27425 support
commit a66f59ba2e

    bq27x00_battery: Add support for BQ27425 chip

introduced 2 bugs.

1/ 'chip' was set to BQ27425 unconditionally - breaking support for
   other devices;

2/ BQ27425 does not support cycle count, how the code still tries to
   get the cycle count for BQ27425, and now does it twice for other chips.

Signed-off-by: NeilBrown <neilb@suse.de>
Cc: Saranya Gopal <saranya.gopal@intel.com>
Cc: stable@vger.kernel.org
Signed-off-by: Anton Vorontsov <anton@enomsg.org>
2013-01-05 18:53:28 -08:00
Ramakrishna Pallala
a05be99174 power_supply: Add watchdog and safety timer expiries under PROP_HEALTH_*
As most of the charger chips come with two kinds of safety features
related to timing:

1. Watchdog Timer (interms of seconds/mins)
2. Safety Timer (interms of hours)

This patch adds these to fault causes in POWER_SUPPLY_PROP_HEALTH_* enums
so that whenever there is either watchdog timeout or safety timer timeout
driver could notify the user space accurately about the fault and will
also be helpful for debug.

Signed-off-by: Ramakrishna Pallala <ramakrishna.pallala@intel.com>
Signed-off-by: Anton Vorontsov <anton@enomsg.org>
2013-01-05 18:51:18 -08:00
Sachin Kamat
a9672e1356 bq2415x_charger: Use devm_kzalloc()
devm_kzalloc is device managed and makes error handling and code cleanup a
bit simpler.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Anton Vorontsov <anton@enomsg.org>
2013-01-05 18:41:12 -08:00
Sachin Kamat
463df5147e bq2415x_charger: Use module_i2c_driver
module_i2c_driver() makes the code simpler by eliminating module_init and
module_exit calls.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Anton Vorontsov <anton@enomsg.org>
2013-01-05 18:41:01 -08:00
Sachin Kamat
d8ecb67581 bq2415x_charger: Remove unneeded version.h inclusion
<linux/version.h> is not required here.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Anton Vorontsov <anton@enomsg.org>
2013-01-05 18:39:56 -08:00
Anton Vorontsov
86b1e8294e Merge branch 'ab8500-from-Rajanikanth'
Conflicts:
	drivers/power/ab8500_bmdata.c
2013-01-05 17:35:35 -08:00
Rajanikanth H.V
e3e71007b0 ab8500: Promote ab8500_fg probe before ab8500_btemp probe
ab8500_fg driver prepares instance list of fuelgauge which is required by
btemp driver for battery identification. So make sure that ab8500
fuelgauge list is ready before btemp driver starts.

Signed-off-by: Rajanikanth H.V <rajanikanth.hv@stericsson.com>
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Anton Vorontsov <anton@enomsg.org>
2013-01-05 17:31:24 -08:00
Rajanikanth H.V
ed59828bb5 ab8500: Remove initial "UNKNOWN" battery-type string assignment
DT property 'stericsson,battery-type' shall be one of supported technology
type

Signed-off-by: Rajanikanth H.V <rajanikanth.hv@stericsson.com>
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Anton Vorontsov <anton@enomsg.org>
2013-01-05 17:31:15 -08:00
Anton Vorontsov
240fbe2347 Merge branch 'for-anton' of git://git.linaro.org/people/ljones/linux-3.0-ux500 2013-01-05 17:14:22 -08:00
Tejun Heo
2fbb520d20 charger_manager: Don't use [delayed_]work_pending()
There's no need to test whether a (delayed) work item in pending
before queueing, flushing or cancelling it.  Most uses are unnecessary
and quite a few of them are buggy.

Remove unnecessary pending tests and rewrite _setup_polling() so that
it uses mod_delayed_work() if the next polling interval is sooner than
currently scheduled.  queue_delayed_work() is used otherwise.

Only compile tested.  I noticed that two work items - setup_polling
and cm_monitor_work - schedule each other.  It's a very unusual
construct and I'm fairly sure it's racy.  You can't break such
circular dependency by calling cancel on each.  I strongly recommend
revising the mechanism.

Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Anton Vorontsov <cbou@mail.ru>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Donggeun Kim <dg77.kim@samsung.com>
Cc: MyungJoo Ham <myungjoo.ham@samsung.com>
Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org>
2013-01-05 14:03:26 -08:00
Chanwoo Choi
41468a1119 charger-manager: Split _probe funtion to make the code more clean
This patch split _probe function for readability because _probe function
is longer than 400 line.

Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Myungjoo Ham <myungjoo.ham@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org>
2013-01-05 14:00:09 -08:00
Linus Torvalds
d1c3ed669a Linux 3.8-rc2 2013-01-02 18:13:21 -08:00
Linus Torvalds
d50403dcc5 Merge branch 'fixes-for-3.8' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/linux-leds
Pull LED fix from Bryan Wu.

* 'fixes-for-3.8' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/linux-leds:
  leds: leds-gpio: set devm_gpio_request_one() flags param correctly
2013-01-02 18:12:35 -08:00
Javier Martinez Canillas
2d7c22f67d leds: leds-gpio: set devm_gpio_request_one() flags param correctly
commit a99d76f leds: leds-gpio: use gpio_request_one

changed the leds-gpio driver to use gpio_request_one() instead
of gpio_request() + gpio_direction_output()

Unfortunately, it also made a semantic change that breaks the
leds-gpio driver.

The gpio_request_one() flags parameter was set to:

GPIOF_DIR_OUT | (led_dat->active_low ^ state)

Since GPIOF_DIR_OUT is 0, the final flags value will just be the
XOR'ed value of led_dat->active_low and state.

This value were used to distinguish between HIGH/LOW output initial
level and call gpio_direction_output() accordingly.

With this new semantic gpio_request_one() will take the flags value
of 1 as a configuration of input direction (GPIOF_DIR_IN) and will
call gpio_direction_input() instead of gpio_direction_output().

int gpio_request_one(unsigned gpio, unsigned long flags, const char *label)
{
..
	if (flags & GPIOF_DIR_IN)
		err = gpio_direction_input(gpio);
	else
		err = gpio_direction_output(gpio,
				(flags & GPIOF_INIT_HIGH) ? 1 : 0);
..
}

The right semantic is to evaluate led_dat->active_low ^ state and
set the output initial level explicitly.

Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Reported-by: Arnaud Patard <arnaud.patard@rtp-net.org>
Tested-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Signed-off-by: Bryan Wu <cooloney@gmail.com>
2013-01-02 17:58:41 -08:00
Linus Torvalds
ef05e9b960 Merge git://www.linux-watchdog.org/linux-watchdog
Pull watchdog fixes from Wim Van Sebroeck:
 "This fixes some small errors in the new da9055 driver, eliminates a
  compiler warning and adds DT support for the twl4030_wdt driver (so
  that we can have multiple watchdogs with DT on the omap platforms)."

* git://www.linux-watchdog.org/linux-watchdog:
  watchdog: twl4030_wdt: add DT support
  watchdog: omap_wdt: eliminate unused variable and a compiler warning
  watchdog: da9055: Don't update wdt_dev->timeout in da9055_wdt_set_timeout error path
  watchdog: da9055: Fix invalid free of devm_ allocated data
2013-01-02 17:46:14 -08:00
Linus Torvalds
080a62e2ce PCI updates for v3.8:
PCI: Reduce Ricoh 0xe822 SD card reader base clock frequency to 50MHz
   PCI: Remove spurious error for sriov_numvfs store and simplify flow
   PCI: Add PCIe Link Capability link speed and width names
   PCI/PM: Do not suspend port if any subordinate device needs PME polling
   PCI: Work around Stratus ftServer broken PCIe hierarchy (fix DMI check)
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.10 (GNU/Linux)
 
 iQIcBAABAgAGBQJQ5HnVAAoJEPGMOI97Hn6zprgP/1we4RhVaXLRnmLyc9OpS97Z
 9KZUU/rsMQ/RYstdNFV30JOypMFL1BlK7jpLR14gjSgCulKK9etvjBTwiV26Rfor
 n/LWru4CWUtGUH/2c4IwuN0FKxfU7W4GxuVfKi3uACh7yJRwKgxZhFKLLb4OZ/T0
 A1CiIktdpZhH5A8+WdoSkZSsfQPuUA6UVKQleEQh/qJl9qgxwEDLsdj5fIZLsFUB
 Fo3bbusq2X+pHU0uuBIzrheSUeSmxXzeZcte8JxTEEwB/Gdsn24lJ39MK5PHAaOE
 gSVC7HDi+vNCICZhi7H93musPczL1TqeyMZQWSa/rj7KV836kG+Phz61SmsXTxyR
 VpfnEZOx7GreErpBuLKrOVslXJl1TBc/ZiiLd5SBUlO4ZClAssPcevtUexCR3xr6
 eHoSYMtwblW/vgJ3rn/PD8SgksZVJsd6+JAlVbC53XAdeJuEheCdEU7HnQZ3ZQRF
 6wpWOBfIxdSQM4AukncNjUSTQpVjNFoEXNcPBCamazDz9NgRIcrnBAd/94+AVD0t
 WQpoU0HDP6h00pK8Ls3Fsv23qbfPDPP9i6zhSGlv5Q9Sz5T8b178j8h7tkUgtPy/
 vxAtwUgFwz5cxE053lrht0JEQUikv99VcUJKrQc17g6GIMenh4duXrxF1I1EERXD
 fcVZNas3SrnLSKfsVwws
 =Ehs+
 -----END PGP SIGNATURE-----

Merge tag '3.8-pci-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci

Pull PCI updates from Bjorn Helgaas:
 "Some fixes for v3.8.  They include a fix for the new SR-IOV sysfs
  management support, an expanded quirk for Ricoh SD card readers, a
  Stratus DMI quirk fix, and a PME polling fix."

* tag '3.8-pci-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
  PCI: Reduce Ricoh 0xe822 SD card reader base clock frequency to 50MHz
  PCI/PM: Do not suspend port if any subordinate device needs PME polling
  PCI: Add PCIe Link Capability link speed and width names
  PCI: Work around Stratus ftServer broken PCIe hierarchy (fix DMI check)
  PCI: Remove spurious error for sriov_numvfs store and simplify flow
2013-01-02 17:44:29 -08:00
David Howells
8a7eab2b54 UAPI: Strip _UAPI prefix on header install no matter the whitespace
Commit 56c176c9ca ("UAPI: strip the _UAPI prefix from header guards
during header installation") strips the _UAPI prefix from header guards,
but only if there's a single space between the cpp directive and the
label.

Make it more flexible and able to handle tabs and multiple white space
characters.

Signed-off-by: David Howells <dhowell@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-01-02 17:36:10 -08:00
David Howells
3d33fcc11b UAPI: Remove empty Kbuild files
Empty files can get deleted by the patch program, so remove empty Kbuild
files and their links from the parent Kbuilds.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-01-02 17:36:10 -08:00
Linus Torvalds
007f6c3a63 Two self-explanatory fixes and a third patch which improves performance. When
overwriting a full page in the eCryptfs page cache, skip reading in and
 decrypting the corresponding lower page.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.11 (GNU/Linux)
 
 iQIcBAABCgAGBQJQ5HR+AAoJENaSAD2qAscKg/gQAJSGpz9Frh3QqV30smvbKASI
 vBcHpbEBMhpExzkcLF3Gqdj7KqcwpN3Nh+oAD1vNyvermeczazEebr5wFfNTv4eE
 TetUfa2e92RS0c0yxgS+9k1Fhxi8BCovNxmFfiq5iPFHSNwjixPBHLLZVFPCdp9N
 il/dV8Y7wg1exDikZQc8lqiVULZxvkBc+R/dgXFhAnwFxDMT2jiInXbBU4Onct0P
 +YX4FwrKnDCOg7bk8Mk/lW6mwAuhoelnuF3dy9v/soBeclOeTfmUmO44dv0D3IPY
 iGpGofhs+cDSKxOZ0XXocAdFdmY7fbcijppoF00XyZiuqcd59zc0l+LDRuCBcXD7
 SFSTzR0uFf8C0rM4Mjfz6WGbwW7Ae0KqLbFIVg03MJDCquOtDBr0Xdpviy1GYNo3
 H0Z3400olyGqp/3ZoEjefOoz9DbzqHtzhcMtGBN/ihyaolPJzS81pLTYCsja2SJM
 pHUjId3abWOVRgtrAk+XUO9Sn6W8Or5bug4+idYwD6LfUILz9OpHin/mplnHoF9F
 8lEjhzNHyvU3HQPyR4v/TidExyx7IBeP0tOLk4X2N+fmH45ukl/pPDNfpF/2lxpd
 mN7HK2H2cYtGrYSwSmwuG0q9W365vmk8mvu2Xz5aIMe9r5SeucgPjzZ3zg+kHgRE
 OqJljwln6TaSB/7o0MQ5
 =JNeQ
 -----END PGP SIGNATURE-----

Merge tag 'ecryptfs-3.8-rc2-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tyhicks/ecryptfs

Pull ecryptfs fixes from Tyler Hicks:
 "Two self-explanatory fixes and a third patch which improves
  performance: when overwriting a full page in the eCryptfs page cache,
  skip reading in and decrypting the corresponding lower page."

* tag 'ecryptfs-3.8-rc2-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tyhicks/ecryptfs:
  fs/ecryptfs/crypto.c: make ecryptfs_encode_for_filename() static
  eCryptfs: fix to use list_for_each_entry_safe() when delete items
  eCryptfs: Avoid unnecessary disk read and data decryption during writing
2013-01-02 17:33:50 -08:00
Linus Torvalds
58890c0669 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client
Pull Ceph fixes from Sage Weil:
 "Two of Alex's patches deal with a race when reseting server
  connections for open RBD images, one demotes some non-fatal BUGs to
  WARNs, and my patch fixes a protocol feature bit failure path."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client:
  libceph: fix protocol feature mismatch failure path
  libceph: WARN, don't BUG on unexpected connection states
  libceph: always reset osds when kicking
  libceph: move linger requests sooner in kick_requests()
2013-01-02 17:32:49 -08:00
Mel Gorman
42288fe366 mm: mempolicy: Convert shared_policy mutex to spinlock
Sasha was fuzzing with trinity and reported the following problem:

  BUG: sleeping function called from invalid context at kernel/mutex.c:269
  in_atomic(): 1, irqs_disabled(): 0, pid: 6361, name: trinity-main
  2 locks held by trinity-main/6361:
   :  (&mm->mmap_sem){++++++}, at: [<ffffffff810aa314>] __do_page_fault+0x1e4/0x4f0
   :  (&(&mm->page_table_lock)->rlock){+.+...}, at: [<ffffffff8122f017>] handle_pte_fault+0x3f7/0x6a0
  Pid: 6361, comm: trinity-main Tainted: G        W
  3.7.0-rc2-next-20121024-sasha-00001-gd95ef01-dirty 
  Call Trace:
    __might_sleep+0x1c3/0x1e0
    mutex_lock_nested+0x29/0x50
    mpol_shared_policy_lookup+0x2e/0x90
    shmem_get_policy+0x2e/0x30
    get_vma_policy+0x5a/0xa0
    mpol_misplaced+0x41/0x1d0
    handle_pte_fault+0x465/0x6a0

This was triggered by a different version of automatic NUMA balancing
but in theory the current version is vunerable to the same problem.

do_numa_page
  -> numa_migrate_prep
    -> mpol_misplaced
      -> get_vma_policy
        -> shmem_get_policy

It's very unlikely this will happen as shared pages are not marked
pte_numa -- see the page_mapcount() check in change_pte_range() -- but
it is possible.

To address this, this patch restores sp->lock as originally implemented
by Kosaki Motohiro.  In the path where get_vma_policy() is called, it
should not be calling sp_alloc() so it is not necessary to treat the PTL
specially.

Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Tested-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Signed-off-by: Mel Gorman <mgorman@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-01-02 17:32:13 -08:00