Martin Fuzzey [Thu, 22 Nov 2012 19:15:05 +0000 (20:15 +0100)]
clk: clock multiplexers may register out of order
When a clock, C is initialised any orphan clocks listing C as
a possible parent are reparented to it regardless of the
parent requested by the orphan's get_parent() operation.
This means that multiplexers registered before their parents
are reparented to the first parent subsequently declared,
regardless of the selection made by the hardware registers.
For example:
static const char *sel[] = { "srcA", "srcB", "dummy", "srcC" };
child = clk_register_mux(NULL, "child", sel, ARRAY_SIZE(sel), ...);
clk_register_fixed(NULL, "dummy", ...);
clk_register_fixed(NULL, "srcA", ...);
clk_register_fixed(NULL, "srcB", ...);
clk_register_fixed(NULL, "srcC", ...);
Causes child's parent to always be "dummy".
To fix this, when an orphanned clock has a get_parent() operation,
only reparent to the clock indicated by get_parent().
Signed-off-by: Martin Fuzzey <mfuzzey@parkeon.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
[mturquette@linaro.org: improve $SUBJECT]
Ulf Hansson [Thu, 22 Nov 2012 10:35:39 +0000 (11:35 +0100)]
clk: ux500: Initial support for abx500 clock driver
The abx500 clock driver is a platform driver which will be initialized
during arch init. The platform device shall be added from the ab-core
driver as a mfd child device to maintain correct boot sequence.
Depending on what ab version we use, different clock definitions will
be added.
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
Vipul Kumar Samar [Sat, 10 Nov 2012 06:43:47 +0000 (12:13 +0530)]
CLK: SPEAr: Remove unused dummy apb_pclk
Dummy clocks were added for ARM platforms, so that clk_get() for interface clk
doesn't fail for amba devices from amba_probe(). Because there is no amba device
for SPEAr that doesn't have a valid clock with dev_id for SPEAr, we don't need
these dummy clocks. Hence, remove them.
Signed-off-by: Vipul Kumar Samar <vipulkumar.samar@st.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
Deepak Sikri [Sat, 10 Nov 2012 06:43:46 +0000 (12:13 +0530)]
CLK: SPEAr: Correct index scanning done for clock synths
The patch corrects the case when the rate table is being scanned for a
given frequency, and the search frequency is beyond the maximum
frequency indexed in the table.
By default, the system should be set at max frequency present in the
rate table. This patch correctly returns the corresponding index value.
Signed-off-by: Deepak Sikri <deepak.sikri@st.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
Deepak Sikri [Sat, 10 Nov 2012 06:43:45 +0000 (12:13 +0530)]
CLK: SPEAr: Update clock rate table
This patch updates the existing rate tables with new frequencies.
Signed-off-by: Deepak Sikri <deepak.sikri@st.com>
Signed-off-by: Vipul Kumar Samar <vipulkumar.samar@st.com>
Signed-off-by: Rajeev Kumar <rajeev-dlh.kumar@st.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
Vipul Kumar Samar [Sat, 10 Nov 2012 06:43:44 +0000 (12:13 +0530)]
CLK: SPEAr: Add missing clocks
This patch adds missing clocks: twd and macb.
Signed-off-by: Vipul Kumar Samar <vipulkumar.samar@st.com>
Signed-off-by: Deepak Sikri <deepak.sikri@st.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
Vipul Kumar Samar [Sat, 10 Nov 2012 06:43:43 +0000 (12:13 +0530)]
CLK: SPEAr: Set CLK_SET_RATE_PARENT for few clocks
Flag CLK_SET_RATE_PARENT is required for a clock, where we want to
propagate clk_set_rate to its parent. This patch adds this to multiple clocks.
Signed-off-by: Vipul Kumar Samar <vipulkumar.samar@st.com>
Signed-off-by: Shiraz Hashim <shiraz.hashim@st.com>
Signed-off-by: Rajeev Kumar <rajeev-dlh.kumar@st.com>
Signed-off-by: Vijay Kumar Mishra <vijay.kumar@st.com>
Signed-off-by: Vijay Kumar Mishra <vijay.kumar@st.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
Shiraz Hashim [Sat, 10 Nov 2012 06:43:42 +0000 (12:13 +0530)]
CLK: SPEAr13xx: fix parent names of multiple clocks
This patch fixes parent names of multiple clocks.
Signed-off-by: Shiraz Hashim <shiraz.hashim@st.com>
Signed-off-by: Vipul Kumar Samar <vipulkumar.samar@st.com>
Signed-off-by: Rajeev Kumar <rajeev-dlh.kumar@st.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
Shiraz Hashim [Sat, 10 Nov 2012 06:43:41 +0000 (12:13 +0530)]
CLK: SPEAr13xx: Fix mux clock names
This patch updates mux clock names of multiple clocks. It updates _clk with
_mclk to make it more readable.
Signed-off-by: Shiraz Hashim <shiraz.hashim@st.com>
Signed-off-by: Rajeev Kumar <rajeev-dlh.kumar@st.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
Rajeev Kumar [Sat, 10 Nov 2012 06:43:40 +0000 (12:13 +0530)]
CLK: SPEAr: Fix dev_id & con_id for multiple clocks
dev_id & con_id names of multiple clocks are incorrect. This patch fixes these
names with the names that come via DT.
Signed-off-by: Rajeev Kumar <rajeev-dlh.kumar@st.com>
Signed-off-by: Shiraz Hashim <shiraz.hashim@st.com>
Signed-off-by: Bhavna Yadav <bhavna.yadav@st.com>
Signed-off-by: Vipul Kumar Samar <vipulkumar.samar@st.com>
Signed-off-by: Deepak Sikri <deepak.sikri@st.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
Linus Walleij [Tue, 20 Nov 2012 21:39:49 +0000 (22:39 +0100)]
clk: move IM-PD1 clocks to drivers/clk
The ARM IM-PD1 add-on module has a few clock of its own, let's
move also these down to the drivers/clk/versatile driver dir
and get rid of any remaining oldschool Integrator clocks.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
Linus Walleij [Tue, 20 Nov 2012 22:01:04 +0000 (23:01 +0100)]
clk: make ICST driver handle the VCO registers
It turns out that all platforms using the ICST VCO are really
just touching two registers, and in the same way as well: one
register with the VCO configuration as such, and one lock register
that makes it possible to write to the VCO.
Factor this register read/write into the ICST driver so we can
reuse it in the IM-PD1 driver.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
Linus Walleij [Tue, 20 Nov 2012 21:39:31 +0000 (22:39 +0100)]
clk: add GPLv2 headers to the Versatile clock files
The GPLv2 headers were missing and the subsystem maintainer likes
them so put them in. I am the copyright holder, so explicitly
licensing these under the GPLv2.
Reported-by: Mike Turquette <mturquette@ti.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
Fabio Estevam [Sat, 22 Sep 2012 16:54:55 +0000 (13:54 -0300)]
clk: mxs: Use a better name for the USB PHY clock
Use a better name for the USB PHY clock.
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
Axel Lin [Tue, 6 Nov 2012 02:34:20 +0000 (10:34 +0800)]
clk: spear: Add stub functions for spear3[0|1|2]0_clk_init()
This fixes compile error if one of SPEAr3xx implementations is not selected.
CC drivers/clk/spear/spear3xx_clock.o
drivers/clk/spear/spear3xx_clock.c: In function 'spear3xx_clk_init':
drivers/clk/spear/spear3xx_clock.c:599:3: error: implicit declaration of function 'spear300_clk_init' [-Werror=implicit-function-declaration]
drivers/clk/spear/spear3xx_clock.c:601:3: error: implicit declaration of function 'spear310_clk_init' [-Werror=implicit-function-declaration]
drivers/clk/spear/spear3xx_clock.c:603:3: error: implicit declaration of function 'spear320_clk_init' [-Werror=implicit-function-declaration]
cc1: some warnings being treated as errors
make[3]: *** [drivers/clk/spear/spear3xx_clock.o] Error 1
make[2]: *** [drivers/clk/spear] Error 2
make[1]: *** [drivers/clk] Error 2
make: *** [drivers] Error 2
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
Wei Yongjun [Thu, 1 Nov 2012 05:33:55 +0000 (13:33 +0800)]
CLK: clk-twl6040: fix return value check in twl6040_clk_probe()
In case of error, the function clk_register() returns ERR_PTR()
and never returns NULL. The NULL test in the return value check
should be replaced with IS_ERR().
dpatch engine is used to auto generate this patch.
(https://github.com/weiyj/dpatch)
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
Ulf Hansson [Wed, 31 Oct 2012 13:40:53 +0000 (14:40 +0100)]
clk: ux500: Register nomadik keypad clock lookups for u8500
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
Ulf Hansson [Wed, 31 Oct 2012 13:40:52 +0000 (14:40 +0100)]
clk: ux500: Register rng clock lookups for u8500
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
Ulf Hansson [Mon, 22 Oct 2012 13:58:01 +0000 (15:58 +0200)]
clk: ux500: Register slimbus clock lookups for u8500
At the same time the prcc bit for the kclk is corrected to
bit 8 instead of 3.
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
Ulf Hansson [Mon, 22 Oct 2012 13:58:00 +0000 (15:58 +0200)]
clk: ux500: Update rtc clock lookup for u8500
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
Ulf Hansson [Mon, 22 Oct 2012 13:57:59 +0000 (15:57 +0200)]
clk: ux500: Register msp clock lookups for u8500
Cc: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
Ulf Hansson [Mon, 22 Oct 2012 13:57:58 +0000 (15:57 +0200)]
clk: ux500: Register ssp clock lookups for u8500
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
Ulf Hansson [Mon, 22 Oct 2012 13:57:57 +0000 (15:57 +0200)]
clk: ux500: Register i2c clock lookups for u8500
Cc: Ben Dooks <ben-linux@fluff.org>
Cc: Wolfram Sang <w.sang@pengutronix.de>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
Tony Prisk [Thu, 18 Oct 2012 09:26:53 +0000 (22:26 +1300)]
CLK: vt8500: Fix SDMMC clk special cases
This patch adds some additional handling for the SDMMC special case
in round_rate and set_rate which results in invalid divisor messages
at boot time.
Signed-off-by: Tony Prisk <linux@prisktech.co.nz>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
Wei Yongjun [Tue, 9 Oct 2012 02:46:00 +0000 (10:46 +0800)]
clk: fix return value check in bcm2835_init_clocks()
In case of error, the function clk_register_fixed_rate() returns
ERR_PTR() and never returns NULL. The NULL test in the return value
check should be replaced with IS_ERR().
dpatch engine is used to auto generate this patch.
(https://github.com/weiyj/dpatch)
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Acked-by: Stephen Warren <swarren@wwwdotorg.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
Ulf Hansson [Wed, 10 Oct 2012 11:42:29 +0000 (13:42 +0200)]
cpufreq: db8500: Use armss clk to update frequency
Using the armss clk to update the frequency makes the driver no more
directly dependant on the prmcu API.
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Cc: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
Ulf Hansson [Wed, 10 Oct 2012 11:42:28 +0000 (13:42 +0200)]
clk: ux500: Add armss clk and fixup smp_twd clk for u8500
The new armss clk is a prcmu_scalable_rate clk which represents
the ARMSS clk. This then makes it possible to convert the smp_twd
clk to a fixed factor clock type, using a fixed divider of 2 and
with the armss clk as parent.
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
Ulf Hansson [Wed, 10 Oct 2012 11:42:27 +0000 (13:42 +0200)]
clk: ux500: Support for prcmu_scalable_rate clock
The prcmu_scalable_rate clock can change rate but is not gateable.
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
Ulf Hansson [Wed, 10 Oct 2012 11:42:26 +0000 (13:42 +0200)]
mfd: db8500: Connect ARMSS clk to ARM OPP
ARMSS clk directly maps it's frequency towards the cpufreq table.
To be able to update the ARMSS clk rate, a new set_rate function for
the ARMSS clk is added, which also will trigger a corresponding ARM
OPP request. Additionally an ARMSS clk round_rate function is added
to fetch valid cpufreq frequencies.
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
Ulf Hansson [Wed, 10 Oct 2012 11:42:25 +0000 (13:42 +0200)]
cpufreq: db8500: Fetch cpufreq table from platform data
By fetching the table as platform data we do not need the internally
hardcoded cpufreq table anymore.
Moreover the corresponding arm_opp idx2opp table, used for mapping
frequency to correct opp bits is also removed. This due to that the
opp bits is put directly in the index field of the cpufreq table.
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Jonas Aaberg <jonas.aberg@stericsson.com>
Acked-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
Ulf Hansson [Wed, 10 Oct 2012 11:42:24 +0000 (13:42 +0200)]
cpufreq: db8500: Register as a platform driver
To fetch the mfd child device we register the cpufreq driver
as a platform driver.
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Jonas Aaberg <jonas.aberg@stericsson.com>
Acked-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
Ulf Hansson [Wed, 10 Oct 2012 11:42:23 +0000 (13:42 +0200)]
mfd: db8500: Provide cpufreq table as platform data
The cpufreq table needs dynamically update due to what the PRCMU
firmware is supporting. The table is then provided through to the
mfd child device as platform data.
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Jonas Aaberg <jonas.aberg@stericsson.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
Ulf Hansson [Wed, 10 Oct 2012 11:42:22 +0000 (13:42 +0200)]
ARM: ux500: Remove cpufreq platform device
The cpufreq device is already added from the prcmu driver as
a mfd child device.
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Jonas Aaberg <jonas.aberg@stericsson.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
Stephen Boyd [Mon, 24 Sep 2012 20:38:05 +0000 (13:38 -0700)]
clk: wm831x: Use devm_clk_register() to simplify code
Move this driver to use devm_clk_register() to simplify some
error paths and reduce lines of code.
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
Stephen Boyd [Mon, 24 Sep 2012 20:38:04 +0000 (13:38 -0700)]
clk: Add devm_clk_{register,unregister}()
Some clock drivers can be simplified if devres takes care of
unregistering any registered clocks along error paths. Introduce
devm_clk_register() so that clock drivers get unregistration for
free along with simplified error paths.
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
Stephen Boyd [Mon, 24 Sep 2012 20:38:03 +0000 (13:38 -0700)]
clk: wm831x: Fix clk_register() error code checking
clk_register() returns an ERR_PTR upon failure, not NULL. Fix
these error paths.
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
Pawel Moll [Tue, 18 Sep 2012 14:17:48 +0000 (15:17 +0100)]
clk: Common clocks implementation for Versatile Express
This patch adds a DT and non-DT based implementation of
the common clock infrastructure for Versatile Express
platform. It registers (statically or using DT) all
required fixed clocks, initialises motherboard's SP810
cell (that provides clocks for SP804 timers) and
explicitly registers VE "osc" driver, to make the
clock generators available early.
Signed-off-by: Pawel Moll <pawel.moll@arm.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
Pawel Moll [Tue, 18 Sep 2012 14:17:47 +0000 (15:17 +0100)]
clk: Versatile Express clock generators ("osc") driver
This driver provides a common clock framework hardware driver
for Versatile Express clock generators (a.k.a "osc") controlled
via the config bus.
Signed-off-by: Pawel Moll <pawel.moll@arm.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
Peter Ujfalusi [Fri, 14 Sep 2012 14:30:27 +0000 (17:30 +0300)]
CLK: clk-twl6040: Initial clock driver for OMAP4+ McPDM fclk clock
On OMAP4+ platforms the functional clock for the McPDM IP is suplied by
the twl6040 codec (bit clock on the PDM bus).
This common clock driver for twl6040 will register the mcpdm_fclk clock to
be used by the McPDM driver to make sure that the needed clocks are
available when needed.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
Wei Yongjun [Sun, 7 Oct 2012 14:02:09 +0000 (22:02 +0800)]
clk: fix return value check in sirfsoc_of_clk_init()
In case of error, the function clk_register() returns ERR_PTR()
and never returns NULL. The NULL test in the return value check
should be replaced with IS_ERR().
dpatch engine is used to auto generate this patch.
(https://github.com/weiyj/dpatch)
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
Wei Yongjun [Fri, 21 Sep 2012 06:35:18 +0000 (14:35 +0800)]
clk: fix return value check in of_fixed_clk_setup()
In case of error, the function clk_register_fixed_rate() returns
ERR_PTR() not NULL pointer. The NULL test in the return value
check should be replaced with IS_ERR().
dpatch engine is used to auto generated this patch.
(https://github.com/weiyj/dpatch)
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
Ulf Hansson [Mon, 24 Sep 2012 14:43:19 +0000 (16:43 +0200)]
clk: ux500: Update sdmmc clock to 100MHz for u8500
For u8500 and using 100MHz as the frequency also requires the ape opp 100
voltage, thus use the prcmu_opp_volt_scalable clock type.
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
Ulf Hansson [Mon, 24 Sep 2012 14:43:18 +0000 (16:43 +0200)]
clk: ux500: Support prcmu ape opp voltage clock
Some scalable prcmu clocks needs to be handled in conjuction with the
ape opp 100 voltage. A new prcmu clock type clk_prcmu_opp_volt_scalable
is implemented to handle this.
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
Ulf Hansson [Mon, 24 Sep 2012 14:43:17 +0000 (16:43 +0200)]
mfd: dbx500: Export prmcu_request_ape_opp_100_voltage
This function needs to be exported to let clients be able to
request the ape opp 100 voltage.
Cc: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
Stephen Boyd [Thu, 4 Oct 2012 06:38:55 +0000 (23:38 -0700)]
clk: Don't return negative numbers for unsigned values with !clk
Some of the helper functions return negative error codes if
passed a NULL clock. This can lead to confusing behavior when the
expected return value is unsigned. Fix up these accessors so that
they return unsigned values (or bool in the case of is_enabled).
This way we can't interpret NULL clocks as having valid and
interesting values.
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
Stephen Boyd [Thu, 4 Oct 2012 06:38:54 +0000 (23:38 -0700)]
clk: Fix documentation typos
Fix some minor typos in the documentation for the ops structure.
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
Stephen Boyd [Thu, 4 Oct 2012 06:38:53 +0000 (23:38 -0700)]
clk: Document .is_enabled op
Add the missing kernel-doc for this op.
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
Viresh Kumar [Thu, 4 Oct 2012 09:49:08 +0000 (15:19 +0530)]
clk: SPEAr: Vco-pll: Fix compilation warning
Currently we are getting following warning for SPEAr clk-vco-pll.
"warning: i is used uninitialized in this function."
This is because we are getting value of i by passing its pointer to another
routine.
The variables here are really not used uninitialized.
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
Linus Torvalds [Sun, 28 Oct 2012 19:24:48 +0000 (12:24 -0700)]
Linux 3.7-rc3
Linus Torvalds [Sun, 28 Oct 2012 18:14:52 +0000 (11:14 -0700)]
Merge tag 'ktest-v3.7-rc2' of git://git./linux/kernel/git/rostedt/linux-ktest
Pull ktest confusion fix from Steven Rostedt:
"With the v3.7-rc2 kernel, the network cards on my target boxes were
not being brought up.
I found that the modules for the network was not being installed.
This was due to the config CONFIG_MODULES_USE_ELF_RELA that came
before CONFIG_MODULES, and confused ktest in thinking that
CONFIG_MODULES=y was not found.
Ktest needs to test all configs and not just stop if something starts
with CONFIG_MODULES."
* tag 'ktest-v3.7-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-ktest:
ktest: Fix ktest confusion with CONFIG_MODULES_USE_ELF_RELA
Linus Torvalds [Sun, 28 Oct 2012 18:13:54 +0000 (11:13 -0700)]
Merge tag 'spi-mxs' of git://git./linux/kernel/git/broonie/misc
Pull minor spi MXS fixes from Mark Brown:
"These fixes are both pretty minor ones and are driver local."
* tag 'spi-mxs' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/misc:
spi: mxs: Terminate DMA in case of DMA timeout
spi: mxs: Assign message status after transfer finished
Linus Torvalds [Sun, 28 Oct 2012 18:12:38 +0000 (11:12 -0700)]
Merge tag 'fixes-for-3.7' of git://git./linux/kernel/git/arm/arm-soc
Pull arm-soc fixes from Arnd Bergmann:
"Bug fixes for a number of ARM platforms, mostly OMAP, imx and at91.
These come a little later than I had hoped but unfortunately we had a
few of these patches cause regressions themselves and had to work out
how to deal with those in the meantime."
* tag 'fixes-for-3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (38 commits)
Revert "ARM i.MX25: Fix PWM per clock lookups"
ARM: versatile: fix versatile_defconfig
ARM: mvebu: update defconfig with 3.7 changes
ARM: at91: fix at91x40 build
ARM: socfpga: Fix socfpga compilation with early_printk() enabled
ARM: SPEAr: Remove unused empty files
MAINTAINERS: Add arm-soc tree entry
ARM: dts: mxs: add the "clock-names" for gpmi-nand
ARM: ux500: Correct SDI5 address and add some format changes
ARM: ux500: Specify AMBA Primecell IDs for Nomadik I2C in DT
ARM: ux500: Fix build error relating to IRQCHIP_SKIP_SET_WAKE
ARM: at91: drop duplicated config SOC_AT91SAM9 entry
ARM: at91/i2c: change id to let i2c-at91 work
ARM: at91/i2c: change id to let i2c-gpio work
ARM: at91/dts: at91sam9g20ek_common: Fix typos in buttons labels.
ARM: at91: fix external interrupt specification in board code
ARM: at91: fix external interrupts in non-DT case
ARM: at91: at91sam9g10: fix SOC type detection
ARM: at91/tc: fix typo in the DT document
ARM: AM33XX: Fix configuration of dmtimer parent clock by dmtimer driverDate:Wed, 17 Oct 2012 13:55:55 -0500
...
Mikulas Patocka [Mon, 15 Oct 2012 21:20:17 +0000 (17:20 -0400)]
Lock splice_read and splice_write functions
Functions generic_file_splice_read and generic_file_splice_write access
the pagecache directly. For block devices these functions must be locked
so that block size is not changed while they are in progress.
This patch is an additional fix for commit
b87570f5d349 ("Fix a crash
when block device is read and block size is changed at the same time")
that locked aio_read, aio_write and mmap against block size change.
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Mikulas Patocka [Mon, 22 Oct 2012 23:39:16 +0000 (19:39 -0400)]
percpu-rw-semaphores: use rcu_read_lock_sched
Use rcu_read_lock_sched / rcu_read_unlock_sched / synchronize_sched
instead of rcu_read_lock / rcu_read_unlock / synchronize_rcu.
This is an optimization. The RCU-protected region is very small, so
there will be no latency problems if we disable preempt in this region.
So we use rcu_read_lock_sched / rcu_read_unlock_sched that translates
to preempt_disable / preempt_disable. It is smaller (and supposedly
faster) than preemptible rcu_read_lock / rcu_read_unlock.
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Mikulas Patocka [Mon, 22 Oct 2012 23:37:47 +0000 (19:37 -0400)]
percpu-rw-semaphores: use light/heavy barriers
This patch introduces new barrier pair light_mb() and heavy_mb() for
percpu rw semaphores.
This patch fixes a bug in percpu-rw-semaphores where a barrier was
missing in percpu_up_write.
This patch improves performance on the read path of
percpu-rw-semaphores: on non-x86 cpus, there was a smp_mb() in
percpu_up_read. This patch changes it to a compiler barrier and removes
the "#if defined(X86) ..." condition.
From: Lai Jiangshan <laijs@cn.fujitsu.com>
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Arnd Bergmann [Sat, 27 Oct 2012 15:41:13 +0000 (17:41 +0200)]
Revert "ARM i.MX25: Fix PWM per clock lookups"
This reverts commit
92063cee118655d25b50d04eb77b012f3287357a, it
was applied prematurely, causing this build error for
imx_v4_v5_defconfig:
arch/arm/mach-imx/clk-imx25.c: In function 'mx25_clocks_init':
arch/arm/mach-imx/clk-imx25.c:206:26: error: 'pwm_ipg_per' undeclared (first use in this function)
arch/arm/mach-imx/clk-imx25.c:206:26: note: each undeclared identifier is reported only once for each function it appears in
Sascha Hauer explains:
> There are several gates missing in clk-imx25.c. I have a patch which
> adds support for them and I seem to have missed that the above depends
> on it.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Arnd Bergmann [Fri, 26 Oct 2012 21:06:43 +0000 (23:06 +0200)]
ARM: versatile: fix versatile_defconfig
With the introduction of CONFIG_ARCH_MULTIPLATFORM, versatile is
no longer the default platform, so we need to enable
CONFIG_ARCH_VERSATILE explicitly in order for that to be selected
rather than the multiplatform configuration.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Thomas Petazzoni [Tue, 23 Oct 2012 08:17:49 +0000 (10:17 +0200)]
ARM: mvebu: update defconfig with 3.7 changes
The split of 370 and XP into two Kconfig options and the multiplatform
kernel support has changed a few Kconfig symbols, so let's update the
mvebu_defconfig file with the latest changes.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Arnd Bergmann [Fri, 26 Oct 2012 20:49:09 +0000 (22:49 +0200)]
ARM: at91: fix at91x40 build
patch
738a0fd7 "ARM: at91: fix external interrupts in non-DT case"
fixed a run-time error on some at91 platforms but did not apply
the same change to at91x40, which now doesn't build.
This changes at91x40 in the same way that the other platforms
were changed.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Linus Torvalds [Fri, 26 Oct 2012 22:00:48 +0000 (15:00 -0700)]
Merge git://git./linux/kernel/git/davem/net
Pull networking fixes from David Miller:
"This is what we usually expect at this stage of the game, lots of
little things, mostly in drivers. With the occasional 'oops didn't
mean to do that' kind of regressions in the core code."
1) Uninitialized data in __ip_vs_get_timeouts(), from Arnd Bergmann
2) Reject invalid ACK sequences in Fast Open sockets, from Jerry Chu.
3) Lost error code on return from _rtl_usb_receive(), from Christian
Lamparter.
4) Fix reset resume on USB rt2x00, from Stanislaw Gruszka.
5) Release resources on error in pch_gbe driver, from Veaceslav Falico.
6) Default hop limit not set correctly in ip6_template_metrics[], fix
from Li RongQing.
7) Gianfar PTP code requests wrong kind of resource during probe, fix
from Wei Yang.
8) Fix VHOST net driver on big-endian, from Michael S Tsirkin.
9) Mallenox driver bug fixes from Jack Morgenstein, Or Gerlitz, Moni
Shoua, Dotan Barak, and Uri Habusha.
10) usbnet leaks memory on TX path, fix from Hemant Kumar.
11) Use socket state test, rather than presence of FIN bit packet, to
determine FIONREAD/SIOCINQ value. Fix from Eric Dumazet.
12) Fix cxgb4 build failure, from Vipul Pandya.
13) Provide a SYN_DATA_ACKED state to complement SYN_FASTOPEN in socket
info dumps. From Yuchung Cheng.
14) Fix leak of security path in kfree_skb_partial(). Fix from Eric
Dumazet.
15) Handle RX FIFO overflows more resiliently in pch_gbe driver, from
Veaceslav Falico.
16) Fix MAINTAINERS file pattern for networking drivers, from Jean
Delvare.
17) Add iPhone5 IDs to IPHETH driver, from Jay Purohit.
18) VLAN device type change restriction is too strict, and should not
trigger for the automatically generated vlan0 device. Fix from Jiri
Pirko.
19) Make PMTU/redirect flushing work properly again in ipv4, from
Steffen Klassert.
20) Fix memory corruptions by using kfree_rcu() in netlink_release().
From Eric Dumazet.
21) More qmi_wwan device IDs, from Bjørn Mork.
22) Fix unintentional change of SNAT/DNAT hooks in generic NAT
infrastructure, from Elison Niven.
23) Fix 3.6.x regression in xt_TEE netfilter module, from Eric Dumazet.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (57 commits)
tilegx: fix some issues in the SW TSO support
qmi_wwan/cdc_ether: move Novatel 551 and E362 to qmi_wwan
net: usb: Fix memory leak on Tx data path
net/mlx4_core: Unmap UAR also in the case of error flow
net/mlx4_en: Don't use vlan tag value as an indication for vlan presence
net/mlx4_en: Fix double-release-range in tx-rings
bas_gigaset: fix pre_reset handling
vhost: fix mergeable bufs on BE hosts
gianfar_ptp: use iomem, not ioports resource tree in probe
ipv6: Set default hoplimit as zero.
NET_VENDOR_TI: make available for am33xx as well
pch_gbe: fix error handling in pch_gbe_up()
b43: Fix oops on unload when firmware not found
mwifiex: clean up scan state on error
mwifiex: return -EBUSY if specific scan request cannot be honored
brcmfmac: fix potential NULL dereference
Revert "ath9k_hw: Updated AR9003 tx gain table for 5GHz"
ath9k_htc: Add PID/VID for a Ubiquiti WiFiStation
rt2x00: usb: fix reset resume
rtlwifi: pass rx setup error code to caller
...
Linus Torvalds [Fri, 26 Oct 2012 21:59:01 +0000 (14:59 -0700)]
Merge branch 'fixes' of git://git.infradead.org/users/vkoul/slave-dma
Pull slave-dmaengine fixes from Vinod Koul:
"Three fixes for slave dmanegine.
Two are for typo omissions in sifr dmaengine driver and the last one
is for the imx driver fixing a missing unlock"
* 'fixes' of git://git.infradead.org/users/vkoul/slave-dma:
dmaengine: sirf: fix a typo in moving running dma_desc to active queue
dmaengine: sirf: fix a typo in dma_prep_interleaved
dmaengine: imx-dma: fix missing unlock on error in imxdma_xfer_desc()
Linus Torvalds [Fri, 26 Oct 2012 21:23:35 +0000 (14:23 -0700)]
Merge tag 'pm+acpi-for-3.7-rc3' of git://git./linux/kernel/git/rafael/linux-pm
Pull power management and ACPI fixes from Rafael J Wysocki:
- Fix for a memory leak in acpi_bind_one() from Jesper Juhl.
- Fix for an error code path memory leak in pm_genpd_attach_cpuidle()
from Jonghwan Choi.
- Fix for smp_processor_id() usage in preemptible code in powernow-k8
from Andreas Herrmann.
- Fix for a suspend-related memory leak in cpufreq stats from Xiaobing
Tu.
- Freezer fix for failure to clear PF_NOFREEZE along with PF_KTHREAD in
flush_old_exec() from Oleg Nesterov.
- acpi_processor_notify() fix from Alan Cox.
* tag 'pm+acpi-for-3.7-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
ACPI: missing break
freezer: exec should clear PF_NOFREEZE along with PF_KTHREAD
Fix memory leak in cpufreq stats.
cpufreq / powernow-k8: Remove usage of smp_processor_id() in preemptible code
PM / Domains: Fix memory leak on error path in pm_genpd_attach_cpuidle
ACPI: Fix memory leak in acpi_bind_one()
Linus Torvalds [Fri, 26 Oct 2012 20:46:41 +0000 (13:46 -0700)]
Merge tag 'rdma-for-linus' of git://git./linux/kernel/git/roland/infiniband
Pull infiniband fixes from Roland Dreier:
"Small batch of fixes for 3.7:
- Fix crash in error path in cxgb4
- Fix build error on 32 bits in mlx4
- Fix SR-IOV bugs in mlx4"
* tag 'rdma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband:
mlx4_core: Perform correct resource cleanup if mlx4_QUERY_ADAPTER() fails
mlx4_core: Remove annoying debug messages from SR-IOV flow
RDMA/cxgb4: Don't free chunk that we have failed to allocate
IB/mlx4: Synchronize cleanup of MCGs in MCG paravirtualization
IB/mlx4: Fix QP1 P_Key processing in the Primary Physical Function (PPF)
IB/mlx4: Fix build error on platforms where UL is not 64 bits
Linus Torvalds [Fri, 26 Oct 2012 17:26:36 +0000 (10:26 -0700)]
Merge tag 'usb-3.7-rc3' of git://git./linux/kernel/git/gregkh/usb
Pull USB fixes from Greg Kroah-Hartman:
"Here are a bunch of USB fixes for the 3.7-rc tree.
There's a lot of small USB serial driver fixes, and one larger one
(the mos7840 driver changes are mostly just moving code around to fix
problems.) Thanks to Johan Hovold for finding the problems and fixing
them all up.
Other than those, there is the usual new device ids, xhci bugfixes,
and gadget driver fixes, nothing out of the ordinary.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>"
* tag 'usb-3.7-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (49 commits)
xhci: trivial: Remove assigned but unused ep_ctx.
xhci: trivial: Remove assigned but unused slot_ctx.
xhci: Fix missing break in xhci_evaluate_context_result.
xhci: Fix potential NULL ptr deref in command cancellation.
ehci: Add yet-another Lucid nohandoff pci quirk
ehci: fix Lucid nohandoff pci quirk to be more generic with BIOS versions
USB: mos7840: fix port_probe flow
USB: mos7840: fix port-data memory leak
USB: mos7840: remove invalid disconnect handling
USB: mos7840: remove NULL-urb submission
USB: qcserial: fix interface-data memory leak in error path
USB: option: fix interface-data memory leak in error path
USB: ipw: fix interface-data memory leak in error path
USB: mos7840: fix port-device leak in error path
USB: mos7840: fix urb leak at release
USB: sierra: fix port-data memory leak
USB: sierra: fix memory leak in probe error path
USB: sierra: fix memory leak in attach error path
USB: usb-wwan: fix multiple memory leaks in error paths
USB: keyspan: fix NULL-pointer dereferences and memory leaks
...
Linus Torvalds [Fri, 26 Oct 2012 17:26:08 +0000 (10:26 -0700)]
Merge tag 'tty-3.7-rc3' of git://git./linux/kernel/git/gregkh/tty
Pull serial fix from Greg Kroah-Hartman:
"Here is one patch, a revert of a omap serial driver patch that was
causing problems, for your 3.7-rc tree.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>"
* tag 'tty-3.7-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
Revert "serial: omap: fix software flow control"
Linus Torvalds [Fri, 26 Oct 2012 17:25:31 +0000 (10:25 -0700)]
Merge tag 'staging-3.7-rc2' of git://git./linux/kernel/git/gregkh/staging
Pull staging driver fixes from Greg Kroah-Hartman:
"Here are some staging driver fixes for your 3.7-rc tree.
Nothing major here, a number of iio driver fixups that were causing
problems, some comedi driver bugfixes, and a bunch of tidspbridge
warning squashing and other regressions fixed from the 3.6 release.
All have been in the linux-next releases for a bit.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>"
* tag 'staging-3.7-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (32 commits)
staging: tidspbridge: delete unused mmu functions
staging: tidspbridge: ioremap physical address of the stack segment in shm
staging: tidspbridge: ioremap dsp sync addr
staging: tidspbridge: change type to __iomem for per and core addresses
staging: tidspbridge: drop const from custom mmu implementation
staging: tidspbridge: request the right irq for mmu
staging: ipack: add missing include (implicit declaration of function 'kfree')
staging: ramster: depends on NET
staging: omapdrm: fix allocation size for page addresses array
staging: zram: Fix handling of incompressible pages
Staging: android: binder: Allow using highmem for binder buffers
Staging: android: binder: Fix memory leak on thread/process exit
staging: comedi: ni_labpc: fix possible NULL deref during detach
staging: comedi: das08: fix possible NULL deref during detach
staging: comedi: amplc_pc263: fix possible NULL deref during detach
staging: comedi: amplc_pc236: fix possible NULL deref during detach
staging: comedi: amplc_pc236: fix invalid register access during detach
staging: comedi: amplc_dio200: fix possible NULL deref during detach
staging: comedi: 8255_pci: fix possible NULL deref during detach
staging: comedi: ni_daq_700: fix dio subdevice regression
...
Linus Torvalds [Fri, 26 Oct 2012 17:24:51 +0000 (10:24 -0700)]
Merge tag 'driver-core-3.7-rc3' of git://git./linux/kernel/git/gregkh/driver-core
Pull driver core fixes from Greg Kroah-Hartman:
"Here are a number of firmware core fixes for 3.7, and some other minor
fixes. And some documentation updates thrown in for good measure.
All have been in the linux-next tree for a while.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>"
* tag 'driver-core-3.7-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
Documentation:Chinese translation of Documentation/arm64/memory.txt
Documentation:Chinese translation of Documentation/arm64/booting.txt
Documentation:Chinese translation of Documentation/IRQ.txt
firmware loader: document kernel direct loading
sysfs: sysfs_pathname/sysfs_add_one: Use strlcat() instead of strcat()
dynamic_debug: Remove unnecessary __used
firmware loader: sync firmware cache by async_synchronize_full_domain
firmware loader: let direct loading back on 'firmware_buf'
firmware loader: fix one reqeust_firmware race
firmware loader: cancel uncache work before caching firmware
Linus Torvalds [Fri, 26 Oct 2012 17:24:19 +0000 (10:24 -0700)]
Merge tag 'char-misc-3.7-rc3' of git://git./linux/kernel/git/gregkh/char-misc
Pull char/misc driver fixes from Greg Kroah-Hartman:
"Here are some driver fixes for 3.7. They include extcon driver fixes,
a hyper-v bugfix, and two other minor driver fixes.
All of these have been in the linux-next releases for a while.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>"
* tag 'char-misc-3.7-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
sonypi: suspend/resume callbacks should be conditionally compiled on CONFIG_PM_SLEEP
Drivers: hv: Cleanup error handling in vmbus_open()
extcon : register for cable interest by cable name
extcon: trivial: kfree missed from remove path
extcon: driver model release call not needed
extcon: MAX77693: Add platform data for MUIC device to initialize registers
extcon: max77693: Use max77693_update_reg for rmw operations
extcon: Fix kerneldoc for extcon_set_cable_state and extcon_set_cable_state_
extcon: adc-jack: Add missing MODULE_LICENSE
extcon: adc-jack: Fix checking return value of request_any_context_irq
extcon: Fix return value in extcon_register_interest()
extcon: unregister compat link on cleanup
extcon: Unregister compat class at module unload to fix oops
extcon: optimising the check_mutually_exclusive function
extcon: standard cable names definition and declaration changed
extcon-max8997: remove usage of ret in max8997_muic_handle_charger_type_detach
extcon: Remove duplicate inclusion of extcon.h header file
Linus Torvalds [Fri, 26 Oct 2012 17:05:07 +0000 (10:05 -0700)]
VFS: don't do protected {sym,hard}links by default
In commit
800179c9b8a1 ("This adds symlink and hardlink restrictions to
the Linux VFS"), the new link protections were enabled by default, in
the hope that no actual application would care, despite it being
technically against legacy UNIX (and documented POSIX) behavior.
However, it does turn out to break some applications. It's rare, and
it's unfortunate, but it's unacceptable to break existing systems, so
we'll have to default to legacy behavior.
In particular, it has broken the way AFD distributes files, see
http://www.dwd.de/AFD/
along with some legacy scripts.
Distributions can end up setting this at initrd time or in system
scripts: if you have security problems due to link attacks during your
early boot sequence, you have bigger problems than some kernel sysctl
setting. Do:
echo 1 > /proc/sys/fs/protected_symlinks
echo 1 > /proc/sys/fs/protected_hardlinks
to re-enable the link protections.
Alternatively, we may at some point introduce a kernel config option
that sets these kinds of "more secure but not traditional" behavioural
options automatically.
Reported-by: Nick Bowler <nbowler@elliptictech.com>
Reported-by: Holger Kiehl <Holger.Kiehl@dwd.de>
Cc: Kees Cook <keescook@chromium.org>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Theodore Ts'o <tytso@mit.edu>
Cc: stable@kernel.org # v3.6
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Fri, 26 Oct 2012 17:03:22 +0000 (10:03 -0700)]
Merge tag 'sound-3.7' of git://git./linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"Slightly a high amount of commits come from Adrian Knoth's HDSPM
driver fixes. Other than that, all small trival fixes or quirks that
are pretty driver-specific."
* tag 'sound-3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ASoC: wm8994: Only enable extra BCLK cycles when required
ALSA: als3000: check for the kzalloc return value
ALSA: sound/isa/opti9xx/miro.c: eliminate possible double free
ALSA: hda - Fix silent headphone output from Toshiba P200
ALSA: hdspm - Fix coding style in CTL_ELEM macros
ALSA: hdspm - Fix typo in kcontrol element on RME MADI cards
ALSA: hdspm - Fix sync_in detection on AES/AES32
ALSA: hdspm - Fix sync_in reporting on RME MADI cards
ALSA: hdspm - Also report autosync_sample_rate on MADI and MADIface
ALSA: hdspm - Fix reported autosync_sample_rate
ALSA: hdspm - Fix sync check reporting on all RME HDSPM cards
ALSA: hdspm - Report external rate in slave mode on PCI MADI
ALSA: hdspm - Allow DDS/Varispeed to be set from userspace
ALSA: hda - add dock support for Thinkpad T430
ASoC: ux500_msp_i2s: Fix devm_* and return code merge error
ASoC: Ux500: Dispose of device nodes correctly
Linus Torvalds [Fri, 26 Oct 2012 17:01:43 +0000 (10:01 -0700)]
Merge branch 'fixes_for_linus' of git://git.linaro.org/people/mszyprowski/linux-dma-mapping
Pull DMA-mapping revert from Marek Szyprowski:
"Due to my mistake, my previous pull request (merged as commit
cff7b8ba60e3: "Merge branch 'fixes_for_linus' ..") contained a patch
which is aimed for v3.8 and lacks its dependences. This pull request
reverts it and fixes build break of ARM architecture."
* 'fixes_for_linus' of git://git.linaro.org/people/mszyprowski/linux-dma-mapping:
Revert "ARM: dma-mapping: support debug_dma_mapping_error"
Linus Torvalds [Fri, 26 Oct 2012 16:35:46 +0000 (09:35 -0700)]
Merge branch 'x86-urgent-for-linus' of git://git./linux/kernel/git/tip/tip
Pull x86 fixes from Ingo Molnar:
"This fixes a couple of nasty page table initialization bugs which were
causing kdump regressions. A clean rearchitecturing of the code is in
the works - meanwhile these are reverts that restore the
best-known-working state of the kernel.
There's also EFI fixes and other small fixes."
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86, mm: Undo incorrect revert in arch/x86/mm/init.c
x86: efi: Turn off efi_enabled after setup on mixed fw/kernel
x86, mm: Find_early_table_space based on ranges that are actually being mapped
x86, mm: Use memblock memory loop instead of e820_RAM
x86, mm: Trim memory in memblock to be page aligned
x86/irq/ioapic: Check for valid irq_cfg pointer in smp_irq_move_cleanup_interrupt
x86/efi: Fix oops caused by incorrect set_memory_uc() usage
x86-64: Fix page table accounting
Revert "x86/mm: Fix the size calculation of mapping tables"
MAINTAINERS: Add EFI git repository location
Linus Torvalds [Fri, 26 Oct 2012 16:35:00 +0000 (09:35 -0700)]
Merge branch 'perf-urgent-for-linus' of git://git./linux/kernel/git/tip/tip
Pull perf fixes from Ingo Molnar:
"Most of the kernel diffstat relates to a group of Intel P6 and KNC
(Xeon-Phi Knights Corner) PMU driver fixes, neither of which is in
heavy use, so we took the fixes.
The rest is diverse smallish fixes to the tooling and kernel side."
* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
perf/x86: Remove unused variable in nhmex_rbox_alter_er()
perf/x86: Enable overflow on Intel KNC with a custom knc_pmu_handle_irq()
perf/x86: Remove cpuc->enable check on Intl KNC event enable/disable
perf/x86: Make Intel KNC use full 40-bit width of counters
perf/x86/uncore: Handle pci_read_config_dword() errors
perf/x86: Remove P6 cpuc->enabled check
perf/x86: Update/fix generic events on P6 PMU
perf/x86: Fix P6 FP_ASSIST event constraint
perf, cpu hotplug: Use cached value of smp_processor_id()
perf, cpu hotplug: Run CPU_STARTING notifiers with irqs disabled
x86/perf: Fix virtualization sanity check
perf test: Fix exclude_guest parse events tests
perf tools: do not flush maps on COMM for perf report
perf help: Fix --help for builtins
perf trace: Check if sample raw_data field is set
perf trace: Validate syscall id before growing syscall table
Linus Torvalds [Fri, 26 Oct 2012 16:34:04 +0000 (09:34 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/mason/linux-btrfs
Pull btrfs fixes from Chris Mason:
"This has our series of fixes for the next rc. The biggest batch is
from Jan Schmidt, fixing up some problems in our subvolume quota code
and fixing btrfs send/receive to work with the new extended inode
refs."
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs:
Btrfs: do not bug when we fail to commit the transaction
Btrfs: fix memory leak when cloning root's node
Btrfs: Use btrfs_update_inode_fallback when creating a snapshot
Btrfs: Send: preserve ownership (uid and gid) also for symlinks.
Btrfs: fix deadlock caused by the nested chunk allocation
btrfs: Return EINVAL when length to trim is less than FSB
Btrfs: fix memory leak in btrfs_quota_enable()
Btrfs: send correct rdev and mode in btrfs-send
Btrfs: extended inode refs support for send mechanism
Btrfs: Fix wrong error handling code
Fix a sign bug causing invalid memory access in the ino_paths ioctl.
Btrfs: comment for loop in tree_mod_log_insert_move
Btrfs: fix extent buffer reference for tree mod log roots
Btrfs: determine level of old roots
Btrfs: tree mod log's old roots could still be part of the tree
Btrfs: fix a tree mod logging issue for root replacement operations
Btrfs: don't put removals from push_node_left into tree mod log twice
John W. Linville [Fri, 26 Oct 2012 14:32:13 +0000 (10:32 -0400)]
Merge branch 'master' of git://git./linux/kernel/git/linville/wireless into for-davem
Arnd Bergmann [Fri, 26 Oct 2012 13:11:30 +0000 (15:11 +0200)]
Merge branch 'fixes' of git://git./linux/kernel/git/horms/renesas into fixes
* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
ARM: shmobile: r8a7779: I/O address abuse cleanup
Arnd Bergmann [Fri, 26 Oct 2012 12:45:06 +0000 (14:45 +0200)]
Merge branch 'v3.7-samsung-fixes-2' of git://git./linux/kernel/git/kgene/linux-samsung into fixes
From Kukjin Kim <kgene.kim@samsung.com>:
One is spi stuff for fix the device names for the different subtypes of
the spi controller. And the other is adding missing .smp field for
exynos4-dt and fixing memory sections for exynos4210-trats board.
* 'v3.7-samsung-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung:
ARM: EXYNOS: Set .smp field of machine descriptor for exynos4-dt
ARM: dts: Split memory into 4 sections for exynos4210-trats
ARM: SAMSUNG: Add naming of s3c64xx-spi devices
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Ingo Molnar [Fri, 26 Oct 2012 08:17:38 +0000 (10:17 +0200)]
Merge tag 'efi-for-3.7' of git://git./linux/kernel/git/mfleming/efi into x86/urgent
Pull EFI fixes from Matt Fleming:
"Fix oops with EFI variables on mixed 32/64-bit firmware/kernels and
document EFI git repository location on kernel.org."
Conflicts:
arch/x86/include/asm/efi.h
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Chris Metcalf [Thu, 25 Oct 2012 07:25:20 +0000 (07:25 +0000)]
tilegx: fix some issues in the SW TSO support
This change correctly computes the header length and data length in
the fragments to avoid a bug where we would end up with extremely
slow performance. Also adopt use of skb_frag_size() accessor.
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
Cc: stable@vger.kernel.org [v3.6]
Signed-off-by: David S. Miller <davem@davemloft.net>
Dan Williams [Wed, 24 Oct 2012 12:10:34 +0000 (12:10 +0000)]
qmi_wwan/cdc_ether: move Novatel 551 and E362 to qmi_wwan
These devices provide QMI and ethernet functionality via a standard CDC
ethernet descriptor. But when driven by cdc_ether, the QMI
functionality is unavailable because only cdc_ether can claim the USB
interface. Thus blacklist the devices in cdc_ether and add their IDs to
qmi_wwan, which enables both QMI and ethernet simultaneously.
Signed-off-by: Dan Williams <dcbw@redhat.com>
Cc: stable@vger.kernel.org
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
Hemant Kumar [Thu, 25 Oct 2012 18:17:54 +0000 (18:17 +0000)]
net: usb: Fix memory leak on Tx data path
Driver anchors the tx urbs and defers the urb submission if
a transmit request comes when the interface is suspended.
Anchoring urb increments the urb reference count. These
deferred urbs are later accessed by calling usb_get_from_anchor()
for submission during interface resume. usb_get_from_anchor()
unanchors the urb but urb reference count remains same.
This causes the urb reference count to remain non-zero
after usb_free_urb() gets called and urb never gets freed.
Hence call usb_put_urb() after anchoring the urb to properly
balance the reference count for these deferred urbs. Also,
unanchor these deferred urbs during disconnect, to free them
up.
Signed-off-by: Hemant Kumar <hemantk@codeaurora.org>
Acked-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Dotan Barak [Thu, 25 Oct 2012 01:12:49 +0000 (01:12 +0000)]
net/mlx4_core: Unmap UAR also in the case of error flow
If a failure takes place during the EQ creation, we need to unmap the
UAR memory block too.
Signed-off-by: Dotan Barak <dotanb@dev.mellanox.co.il>
Signed-off-by: Uri Habusha <urih@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Moni Shoua [Thu, 25 Oct 2012 01:12:48 +0000 (01:12 +0000)]
net/mlx4_en: Don't use vlan tag value as an indication for vlan presence
The vlan tag can be zero. This is why it can't serve as an indication
that packet requires VLAN header in the TX flow.
Signed-off-by: Moni Shoua <monis@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jack Morgenstein [Thu, 25 Oct 2012 01:12:47 +0000 (01:12 +0000)]
net/mlx4_en: Fix double-release-range in tx-rings
The QP range is reserved as a single block. However, when freeing the
en resources, the tx-ring QPs are released both in mlx4_en_destroy_tx_ring
(one at a time) and in mlx4_en_free_resources (as a block release).
Fix by eliminating the one-at-a-time release in mlx4_en_destroy_tx_ring.
Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Tilman Schmidt [Wed, 24 Oct 2012 08:44:32 +0000 (08:44 +0000)]
bas_gigaset: fix pre_reset handling
The delayed work function int_in_work() may call usb_reset_device()
and thus, indirectly, the driver's pre_reset method. Trying to
cancel the work synchronously in that situation would deadlock.
Fix by avoiding cancel_work_sync() in the pre_reset method.
If the reset was NOT initiated by int_in_work() this might cause
int_in_work() to run after the post_reset method, with urb_int_in
already resubmitted, so handle that case gracefully.
Signed-off-by: Tilman Schmidt <tilman@imap.cc>
Signed-off-by: David S. Miller <davem@davemloft.net>
Marek Szyprowski [Fri, 26 Oct 2012 05:39:13 +0000 (07:39 +0200)]
Revert "ARM: dma-mapping: support debug_dma_mapping_error"
This reverts commit
871ae57adc5ed092c1341f411514d0e8482e2611, which is
scheduled for v3.8 and accidently got into v3.7-rc series.
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Steven Rostedt [Fri, 26 Oct 2012 04:10:32 +0000 (00:10 -0400)]
ktest: Fix ktest confusion with CONFIG_MODULES_USE_ELF_RELA
In order to decide if ktest should bother installing modules on the
target box, it checks if the config file has CONFIG_MODULES=y. But it
also checks if the '=y' part exists. It only will install modules if the
config exists and is set with '=y'. But as the regex that was used
tests:
/^CONFIG_MODULES(=y)?/
this will also match:
CONFIG_MODULES_USE_ELF_RELA
as the '=y' part was optional and it did not test the rest of the line.
When this happens, ktest will stop checking the rest of the configs but
it will also think that no modules are needed to be installed. What it
should do is only jump out of the loop if it actually found a
CONFIG_MODULES that is set to true.
Otherwise, ktest wont install the necessary modules needed for proper
booting of the test target.
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Linus Torvalds [Fri, 26 Oct 2012 02:26:54 +0000 (19:26 -0700)]
Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
Pull drm radeon fixes from Dave Airlie:
"Just radeon fixes in this one:
- some new PCI IDs
- ATPX regression fix
- async VM regression fixes
- some module options fixes"
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
drm/radeon: fix ATPX regression in acpi rework
drm/radeon: fix ATPX function documentation
drm/radeon: move the retry to gem_object_create
drm/radeon: move size limits to gem_object_create.
drm/radeon: use vzalloc for gart pages
drm/radeon: fix and simplify pot argument checks v3
drm/radeon: fix header size estimation in VM code
drm/radeon: remove set_page check from VM code
drm/radeon: fix si_set_page v2
drm/radeon: fix cayman_vm_set_page v2
drm/radeon: fix PFP sync in vm_flush
drm/radeon: add error output if VM CS fails on cayman
drm/radeon: give each backlight a unique id
drm/radeon: fix sparse warning
drm/radeon: add some new SI PCI ids
Linus Torvalds [Fri, 26 Oct 2012 02:26:16 +0000 (19:26 -0700)]
Merge tag 'nfs-for-3.7-3' of git://git.linux-nfs.org/projects/trondmy/linux-nfs
Pull NFS bugfixes from Trond Myklebust:
- Fix the NFSv2/v3 kernel statd protocol, which broke due to net
namespace related changes.
- Fix a number of races in the SUNRPC TCP disconnect/reconnect code.
* tag 'nfs-for-3.7-3' of git://git.linux-nfs.org/projects/trondmy/linux-nfs:
LOCKD: Clear ln->nsm_clnt only when ln->nsm_users is zero
LOCKD: fix races in nsm_client_get
SUNRPC: Get rid of the xs_error_report socket callback
SUNRPC: Prevent races in xs_abort_connection()
Revert "SUNRPC: Ensure we close the socket on EPIPE errors too..."
SUNRPC: Clear the connect flag when socket state is TCP_CLOSE_WAIT
Dave Airlie [Thu, 25 Oct 2012 01:36:05 +0000 (11:36 +1000)]
Merge branch 'drm-fixes-3.7' of git://people.freedesktop.org/~agd5f/linux into drm-fixes
Alex writes:
"Fixes pull request for radeon. The main things here are
fixing a ATPX regression from the acpi rework, fixing some
fallout from the async VM work, and fixing some module options
that were broken in certain cases. Other than that, mainly
just bug fixes."
* 'drm-fixes-3.7' of git://people.freedesktop.org/~agd5f/linux:
drm/radeon: fix ATPX regression in acpi rework
drm/radeon: fix ATPX function documentation
drm/radeon: move the retry to gem_object_create
drm/radeon: move size limits to gem_object_create.
drm/radeon: use vzalloc for gart pages
drm/radeon: fix and simplify pot argument checks v3
drm/radeon: fix header size estimation in VM code
drm/radeon: remove set_page check from VM code
drm/radeon: fix si_set_page v2
drm/radeon: fix cayman_vm_set_page v2
drm/radeon: fix PFP sync in vm_flush
drm/radeon: add error output if VM CS fails on cayman
drm/radeon: give each backlight a unique id
drm/radeon: fix sparse warning
drm/radeon: add some new SI PCI ids
Linus Torvalds [Thu, 25 Oct 2012 23:05:57 +0000 (16:05 -0700)]
Merge branch 'akpm' (Andrew's fixes)
Merge misc fixes from Andrew Morton:
"18 total. 15 fixes and some updates to a device_cgroup patchset which
bring it up to date with the version which I should have merged in the
first place."
* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (18 patches)
fs/compat_ioctl.c: VIDEO_SET_SPU_PALETTE missing error check
gen_init_cpio: avoid stack overflow when expanding
drivers/rtc/rtc-imxdi.c: add missing spin lock initialization
mm, numa: avoid setting zone_reclaim_mode unless a node is sufficiently distant
pidns: limit the nesting depth of pid namespaces
drivers/dma/dw_dmac: make driver's endianness configurable
mm/mmu_notifier: allocate mmu_notifier in advance
tools/testing/selftests/epoll/test_epoll.c: fix build
UAPI: fix tools/vm/page-types.c
mm/page_alloc.c:alloc_contig_range(): return early for err path
rbtree: include linux/compiler.h for definition of __always_inline
genalloc: stop crashing the system when destroying a pool
backlight: ili9320: add missing SPI dependency
device_cgroup: add proper checking when changing default behavior
device_cgroup: stop using simple_strtoul()
device_cgroup: rename deny_all to behavior
cgroup: fix invalid rcu dereference
mm: fix XFS oops due to dirty pages without buffers on s390
Alan Cox [Thu, 25 Oct 2012 23:05:56 +0000 (01:05 +0200)]
ACPI: missing break
We handle NOTIFY_THROTTLING so don't then fall through to unsupported event.
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Jason Gerecke [Sun, 21 Oct 2012 07:38:04 +0000 (00:38 -0700)]
Input: wacom - add touch sensor support for Cintiq 24HD touch
Decode multitouch reports from the touch sensor of the Cintiq 24HD
touch.
Signed-off-by: Jason Gerecke <killertofu@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Jason Gerecke [Sun, 21 Oct 2012 07:38:03 +0000 (00:38 -0700)]
Input: wacom - handle split-sensor devices with internal hubs
Like our other pen-and-touch products, the Cintiq 24HD touch needs data
to be shared between its two sensors to facilitate proximity-based palm
rejection.
Unlike other tablets that report sensor data through separate interfaces
of the same USB device, the Cintiq 24HD touch has separate USB devices
that are connected to an internal USB hub.
This patch makes it possible to designate the USB VID/PID of the other
device so that the two may share data. To ensure we don't accidentally
link to a sensor from a physically separate device (if several have been
plugged in), we limit the search to siblings (i.e., devices directly
connected to the same hub).
Signed-off-by: Jason Gerecke <killertofu@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
H. Peter Anvin [Wed, 24 Oct 2012 21:11:48 +0000 (14:11 -0700)]
Makefile: Documentation for external tool should be correct
If one includes documentation for an external tool, it should be
correct. This is not:
1. Overriding the input to rngd should typically be neither
necessary nor desired. This is especially so since newer
versions of rngd support a number of different *types* of sources.
2. The default kernel-exported device is called /dev/hwrng not
/dev/hwrandom nor /dev/hw_random (both of which were used in the
past; however, kernel and udev seem to have converged on
/dev/hwrng.)
Overall it is better if the documentation for rngd is kept with rngd
rather than in a kernel Makefile.
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Cc: David Howells <dhowells@redhat.com>
Cc: Jeff Garzik <jgarzik@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Thu, 25 Oct 2012 22:59:34 +0000 (15:59 -0700)]
Merge branch 'fixes' of git://git.linaro.org/people/rmk/linux-arm
Pull ARM fixes from Russell King:
"A random collection of various fixes, mainly from Arnd and a few other
people. Not thing really stands out here."
* 'fixes' of git://git.linaro.org/people/rmk/linux-arm:
ARM: drop experimental status for hotplug and Thumb2
ARM: 7560/1: SMP_TWD: use DIV_ROUND_CLOSEST() for periodic mode
ARM: 7559/1: smp: switch away from the idmap before updating init_mm.mm_count
ARM: 7556/1: perf: fix updated event period in response to PERF_EVENT_IOC_PERIOD
ARM: 7555/1: kexec: fix segment memory addresses check
ARM: warnings in arch/arm/include/asm/uaccess.h
ARM: binfmt_flat: unused variable 'persistent'
ARM: be really quiet when building with 'make -s'
ARM: pass -marm to gcc by default for both C and assembler
ARM: Xen: fix initial build problems
ARM: export default read_current_timer
ARM: Fix another build warning in arch/arm/mm/alignment.c
ARM: export set_irq_flags
ARM: kprobes: make more tests conditional
Linus Torvalds [Thu, 25 Oct 2012 22:57:48 +0000 (15:57 -0700)]
Merge branch 'fixes_for_linus' of git://git.linaro.org/people/mszyprowski/linux-dma-mapping
Pull CMA and DMA-mapping fixes from Marek Szyprowski:
"This consists mainly of a set of one-liner fixes and cleanups for a
few minor issues identified in both Contiguous Memory Allocator code
and ARM DMA-mapping subsystem."
* 'fixes_for_linus' of git://git.linaro.org/people/mszyprowski/linux-dma-mapping:
ARM: mm: Remove unused arm_vmregion priv field
ARM: dma-mapping: fix build warning in __dma_alloc()
ARM: dma-mapping: support debug_dma_mapping_error
mm: cma: alloc_contig_range: return early for err path
drivers: cma: Fix wrong CMA selected region size default value
drivers: dma-coherent: Fix typo in dma_mmap_from_coherent documentation
drivers: dma-contiguous: Don't redefine SZ_1M
Yinghai Lu [Thu, 25 Oct 2012 22:45:26 +0000 (15:45 -0700)]
x86, mm: Undo incorrect revert in arch/x86/mm/init.c
Commit
844ab6f9 x86, mm: Find_early_table_space based on ranges that are actually being mapped
added back some lines back wrongly that has been removed in commit
7b16bbf97 Revert "x86/mm: Fix the size calculation of mapping tables"
remove them again.
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Link: http://lkml.kernel.org/r/CAE9FiQW_vuaYQbmagVnxT2DGsYc=9tNeAbdBq53sYkitPOwxSQ@mail.gmail.com
Acked-by: Jacob Shin <jacob.shin@amd.com>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Kees Cook [Thu, 25 Oct 2012 20:38:16 +0000 (13:38 -0700)]
fs/compat_ioctl.c: VIDEO_SET_SPU_PALETTE missing error check
The compat ioctl for VIDEO_SET_SPU_PALETTE was missing an error check
while converting ioctl arguments. This could lead to leaking kernel
stack contents into userspace.
Patch extracted from existing fix in grsecurity.
Signed-off-by: Kees Cook <keescook@chromium.org>
Cc: David Miller <davem@davemloft.net>
Cc: Brad Spengler <spender@grsecurity.net>
Cc: PaX Team <pageexec@freemail.hu>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Kees Cook [Thu, 25 Oct 2012 20:38:14 +0000 (13:38 -0700)]
gen_init_cpio: avoid stack overflow when expanding
Fix possible overflow of the buffer used for expanding environment
variables when building file list.
In the extremely unlikely case of an attacker having control over the
environment variables visible to gen_init_cpio, control over the
contents of the file gen_init_cpio parses, and gen_init_cpio was built
without compiler hardening, the attacker can gain arbitrary execution
control via a stack buffer overflow.
$ cat usr/crash.list
file foo ${BIG}${BIG}${BIG}${BIG}${BIG}${BIG} 0755 0 0
$ BIG=$(perl -e 'print "A" x 4096;') ./usr/gen_init_cpio usr/crash.list
*** buffer overflow detected ***: ./usr/gen_init_cpio terminated
This also replaces the space-indenting with tabs.
Patch based on existing fix extracted from grsecurity.
Signed-off-by: Kees Cook <keescook@chromium.org>
Cc: Michal Marek <mmarek@suse.cz>
Cc: Brad Spengler <spender@grsecurity.net>
Cc: PaX Team <pageexec@freemail.hu>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>