Lee Jones [Mon, 10 Dec 2012 10:07:54 +0000 (10:07 +0000)]
gpio: Provide the STMPE GPIO driver with its own IRQ Domain
The STMPE GPIO driver can be used as an IRQ controller by some
related devices. Here we provide it with its very own IRQ Domain
so that IRQs can be issued dynamically. This will stand the
driver in good stead when it is enabled for Device Tree, as this
it a prerequisite.
Cc: Grant Likely <grant.likely@secretlab.ca>
Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Vivien Didelot [Sat, 8 Dec 2012 02:36:34 +0000 (21:36 -0500)]
gpio: add TS-5500 DIO blocks support
Technologic Systems TS-5500 provides digital I/O lines exposed through
pin blocks. On this platform, there are three of them, named DIO1, DIO2
and LCD port, that may be used as a DIO block.
The TS-5500 pin blocks are described in the product's wiki:
http://wiki.embeddedarm.com/wiki/TS-5500#Digital_I.2FO
This driver is not limited to the TS-5500 blocks. It can be extended to
support similar boards pin blocks, such as on the TS-5600.
This patch is the V2 of the previous https://lkml.org/lkml/2012/9/25/671
with corrections suggested by Linus Walleij.
Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: Jerome Oufella <jerome.oufella@savoirfairelinux.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Kuninori Morimoto [Thu, 6 Dec 2012 09:10:28 +0000 (01:10 -0800)]
gpio: pcf857x: use client->irq for gpio_to_irq()
6e20a0a429bd4dc07d6de16d9c247270e04e4aa0
(gpio: pcf857x: enable gpio_to_irq() support)
added gpio_to_irq() support on pcf857x driver,
but it used pdata->irq.
This patch modifies driver to use client->irq instead of it.
It modifies kzm9g board platform settings,
and device probe information too.
This patch is tested on kzm9g board
Reported-by: Christian Engelmayer <christian.engelmayer@frequentis.com>
Acked-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Vipul Kumar Samar [Mon, 26 Nov 2012 11:36:51 +0000 (17:06 +0530)]
gpio: stmpe: Add DT support for stmpe gpio
This patch allows the STMPE GPIO driver to be successfully probed and
initialised when Device Tree support is enabled. Bindings are mentioned in
Documentation too.
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Vipul Kumar Samar <vipulkumar.samar@st.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Alessandro Rubini [Fri, 23 Nov 2012 15:08:24 +0000 (16:08 +0100)]
gpio: pl061 depends on ARM
Commit
dece904d (gpio: pl061: use chained_irq_* functions in irq
handler) introduced chained_irq_enter/exit, which is only
available for arch/arm and the driver won't compile elsewhere.
The dependency is thus made explicit, because AMBA is used in the x86
world by a PCI-to-AMBA bridge, to be submitted.
Signed-off-by: Alessandro Rubini <rubini@gnudd.com>
Acked-by: Giancarlo Asnaghi <giancarlo.asnaghi@st.com>
Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Baruch Siach [Thu, 22 Nov 2012 09:46:14 +0000 (11:46 +0200)]
gpio/pl061: remove old comment
Since
3ab524754 (gpio: pl061: convert to use generic irq chip) we only have one
spinlock in struct pl061_gpio.
Cc: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Shiraz Hashim [Fri, 16 Nov 2012 05:15:25 +0000 (10:45 +0530)]
gpio: SPEAr: add spi chipselect control driver
SPEAr platform provides a provision to control chipselects of ARM PL022
Prime Cell spi controller through its system registers, which otherwise
remains under PL022 control which some protocols do not want.
This commit intends to provide the spi chipselect control in software over
gpiolib interface. spi chip drivers can use the exported gpiolib interface to
define their chipselect through DT or platform data.
Cc: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Shiraz Hashim <shiraz.hashim@st.com>
Reviewed-by: Vipin Kumar <vipin.kumar@st.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Roland Stigge [Thu, 15 Nov 2012 13:59:40 +0000 (14:59 +0100)]
gpio: gpio-max710x: Support device tree probing
For probing via device tree, we need to support the case without platform_data.
In this case, chip.base is set to -1 for automatic numbering.
Signed-off-by: Roland Stigge <stigge@antcom.de>
Acked-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Peter Ujfalusi [Tue, 13 Nov 2012 09:35:13 +0000 (10:35 +0100)]
gpio: twl4030: Use only TWL4030_MODULE_LED for LED configuration
Avoid using the TWL4030_MODULE_PWMA/B as module ID. The LEDEN, PWMA ON/OFF
and PWMB ON/OFF registers are in a continuous range starting from LED base.
This is going to be helpful for further cleanup in the twl stack.
No functional changes.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Laxman Dewangan [Fri, 9 Nov 2012 06:04:20 +0000 (11:34 +0530)]
gpio: tegra: read output value when gpio is set in direction_out
Read the output value when gpio is set for the output mode for
gpio_get_value(). Reading input value in direction out does not
give correct value.
Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Maxime Ripard [Thu, 8 Nov 2012 17:01:52 +0000 (18:01 +0100)]
gpio: pca953x: Add compatible strings to gpio-pca953x driver
Even though the device tree binding code was already written, the
compatible strings were not yet in the driver.
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Maxime Ripard [Thu, 8 Nov 2012 17:01:51 +0000 (18:01 +0100)]
gpio: pca953x: Register an IRQ domain
The PCA953x used to register no IRQ domain, which made it impossible to
use it as an interrupt-parent from the device tree.
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Axel Lin [Thu, 8 Nov 2012 02:27:29 +0000 (10:27 +0800)]
gpio: mvebu: Set free callback for gpio_chip
We call pinctrl_request_gpio() in request callback, thus we need to call
pinctrl_free_gpio() in free callback.
Both mvebu_gpio_request() and mvebu_gpio_free() are not referenced outside of
this file, make them static.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Axel Lin [Thu, 8 Nov 2012 02:47:02 +0000 (10:47 +0800)]
gpio: tegra: Drop exporting static functions
Both tegra_gpio_enable() and tegra_gpio_disable() are static functions, it does
not make sense to export them.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Axel Lin [Thu, 8 Nov 2012 02:45:24 +0000 (10:45 +0800)]
gpio: tegra: Staticize non-exported symbols
Both tegra_gpio_request() and tegra_gpio_free() are not referenced outside of
this file, make them static.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Laxman Dewangan [Wed, 7 Nov 2012 15:01:32 +0000 (20:31 +0530)]
gpio: tegra: fix suspend/resume apis
Following are changes done to fix the suspend/resume
functionality of tegra gpio driver:
- Protect suspend/resume callbacks with CONFIG_PM_SLEEP
because CONFIG_PM doesn't actually enable any of the PM callbacks, it
only allows to enable CONFIG_PM_SLEEP and CONFIG_PM_RUNTIME.
This means if CONFIG_PM is used to protect system sleep callbacks
then it may end up unreferenced if only runtime PM is enabled.
- Fix the suspend/resume APIs declaration as per callback prototype.
Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Alexander Stein [Fri, 2 Nov 2012 15:02:25 +0000 (16:02 +0100)]
gpio-pch: Set parent dev for gpio chip
This will show the gpio chip as a child node
under /sys/bus/pci/devices/xxxx:xx:xx.x/
Signed-off-by: Alexander Stein <alexander.stein@systec-electronic.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Axel Lin [Wed, 31 Oct 2012 09:03:33 +0000 (17:03 +0800)]
gpio: em: Fix build errors
Fix below build errors:
CC [M] drivers/gpio/gpio-em.o
drivers/gpio/gpio-em.c: In function 'em_gio_probe':
drivers/gpio/gpio-em.c:306: error: 'err' undeclared (first use in this function)
drivers/gpio/gpio-em.c:306: error: (Each undeclared identifier is reported only once
drivers/gpio/gpio-em.c:306: error: for each function it appears in.)
drivers/gpio/gpio-em.c:308: error: label 'err3' used but not defined
drivers/gpio/gpio-em.c:279: error: label 'err2' used but not defined
drivers/gpio/gpio-em.c:265: error: label 'err1' used but not defined
drivers/gpio/gpio-em.c:250: error: label 'err0' used but not defined
drivers/gpio/gpio-em.c:309: warning: no return statement in function returning non-void
drivers/gpio/gpio-em.c: At top level:
drivers/gpio/gpio-em.c:311: error: expected identifier or '(' before 'if'
drivers/gpio/gpio-em.c:317: error: expected identifier or '(' before 'if'
drivers/gpio/gpio-em.c:323: warning: data definition has no type or storage class
drivers/gpio/gpio-em.c:323: warning: type defaults to 'int' in declaration of 'ret'
drivers/gpio/gpio-em.c:323: error: 'gpio_chip' undeclared here (not in a function)
drivers/gpio/gpio-em.c:323: error: initializer element is not constant
drivers/gpio/gpio-em.c:324: error: expected identifier or '(' before 'if'
drivers/gpio/gpio-em.c:328: error: expected identifier or '(' before 'return'
drivers/gpio/gpio-em.c:330: error: expected '=', ',', ';', 'asm' or '__attribute__' before ':' token
drivers/gpio/gpio-em.c:332: error: expected '=', ',', ';', 'asm' or '__attribute__' before ':' token
drivers/gpio/gpio-em.c:334: error: expected '=', ',', ';', 'asm' or '__attribute__' before ':' token
drivers/gpio/gpio-em.c:336: error: expected '=', ',', ';', 'asm' or '__attribute__' before ':' token
drivers/gpio/gpio-em.c:338: error: expected '=', ',', ';', 'asm' or '__attribute__' before ':' token
drivers/gpio/gpio-em.c:340: error: expected '=', ',', ';', 'asm' or '__attribute__' before ':' token
drivers/gpio/gpio-em.c:342: error: expected '=', ',', ';', 'asm' or '__attribute__' before ':' token
drivers/gpio/gpio-em.c:344: error: expected identifier or '(' before '}' token
drivers/gpio/gpio-em.c: In function 'em_gio_remove':
drivers/gpio/gpio-em.c:361: error: implicit declaration of function 'em_gio_irq_domain_cleanup'
make[2]: *** [drivers/gpio/gpio-em.o] Error 1
make[1]: *** [drivers/gpio] Error 2
make: *** [drivers] Error 2
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Wei Yongjun [Fri, 26 Oct 2012 15:15:05 +0000 (23:15 +0800)]
GPIO: clps711x: use platform_device_unregister in gpio_clps711x_init()
platform_device_unregister() only calls platform_device_del() and
platform_device_put(), thus use platform_device_unregister() to
simplify the code.
Also the documents in platform.c shows that platform_device_del
and platform_device_put must _only_ be externally called in error
cases. All other usage is a bug.
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: Linus Walleij <linus.walleij@linaro.org>
Linus Walleij [Tue, 16 Oct 2012 17:43:53 +0000 (19:43 +0200)]
gpio/tc3589x: convert to use the simple irqdomain
The special checks for whether we have a base IRQ offset or not
is surplus if we use the simple IRQ domain. The IRQ offset
zero will be interpreted as a linear domain case.
Plus this makes sure we allocate descriptors where need be, or
warn if they are preallocated with SPARSE_IRQ.
Cc: Grant Likely <grant.likely@secretlab.ca>
Cc: Rob Herring <rob.herring@calxeda.com>
Cc: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Linus Walleij [Tue, 16 Oct 2012 18:15:02 +0000 (20:15 +0200)]
gpio/em: convert to linear IRQ domain
The code in the em driver seems to want to try to do the job of
the linear IRQ domain (allocate descriptors and grab a virtual
range). So why not just use the linear IRQ domain? The code is
now cut down so we don't need isolated functions for this.
Also note that we use irq_create_mapping() to make sure
descriptors are allocated for these IRQs.
Also fixed the FIXME to remove the domain after use.
Cc: Grant Likely <grant.likely@secretlab.ca>
Cc: Magnus Damm <damm@opensource.se>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Linus Walleij [Tue, 16 Oct 2012 18:21:04 +0000 (20:21 +0200)]
gpio/mvebu: convert to use irq_domain_add_simple()
The MVEBU driver probably just wants a few IRQs. Using the simple
domain has the upside of allocating IRQ descriptors if need be,
especially in a SPARSE_IRQ environment.
Cc: Rob Herring <rob.herring@calxeda.com>
Cc: Grant Likely <grant.likely@secretlab.ca>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Cc: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Cc: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Linus Walleij [Tue, 16 Oct 2012 19:00:09 +0000 (21:00 +0200)]
gpio/tegra: convert to use linear irqdomain
The Tegra driver tries to do the work of irq_domain_add_linear()
by reserving a bunch of descriptors somewhere and keeping track
of the base offset, then calling irq_domain_add_legacy(). Let's
stop doing that and simply use the linear IRQ domain.
For this to work: use irq_create_mapping() in the IRQ iterator
so that the descriptors get allocated here.
Cc: Rob Herring <rob.herring@calxeda.com>
Cc: Grant Likely <grant.likely@secretlab.ca>
Tested-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Dan Carpenter [Fri, 26 Oct 2012 06:59:43 +0000 (09:59 +0300)]
gpiolib: unlock on error in gpio_export()
We need to unlock here before returning.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Mathias Nyman [Wed, 24 Oct 2012 14:25:27 +0000 (17:25 +0300)]
gpiolib: add gpio get direction callback support
Add .get_direction callback to gpio_chip. This allows gpiolib
to check the current direction of a gpio.
Used to show the correct gpio direction in sysfs and debug entries.
If callback is not set then gpiolib will work as previously;
e.g. guessing everything is input until a direction is set.
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Alexander Shiyan [Wed, 24 Oct 2012 08:34:46 +0000 (12:34 +0400)]
GPIO: clps711x: Fix direction logic for PORTD
PORTD have different direction logic, i.e. "0" is output and "1" is input.
This patch fix this issue.
Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Alexander Shiyan [Wed, 24 Oct 2012 06:58:57 +0000 (10:58 +0400)]
GPIO: clps711x: Fix return value for gpio_clps711x_get
Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Ryan Mallon [Mon, 22 Oct 2012 00:39:12 +0000 (11:39 +1100)]
gpiolib: Refactor gpio_export
The gpio_export function uses nested if statements and the status
variable to handle the failure cases. This makes the function logic
difficult to follow. Refactor the code to abort immediately on failure
using goto. This makes the code slightly longer, but significantly
reduces the nesting and number of split lines and makes the code easier
to read.
Signed-off-by: Ryan Mallon <rmallon@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Tony Prisk [Wed, 17 Oct 2012 18:18:13 +0000 (07:18 +1300)]
GPIO: vt8500: Add extended gpio bank for WM8505/WM8650
These SoC's have an extended bank of GPIO's seperate to the main
GPIO block. This patch adds the additional 5 GPIO's located in this
block which control I2C and PWMOUT.
Signed-off-by: Tony Prisk <linux@prisktech.co.nz>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Linus Walleij [Mon, 15 Oct 2012 20:32:37 +0000 (22:32 +0200)]
gpio: clps711x: delete local <mach/gpio.h> header
This header file is unused and we shall not add new headers
to the <mach/*> namespace. The macro may be reintroduced when
there is a user for it.
Cc: Alexander Shiyan <shc_work@mail.ru>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Alexander Shiyan [Tue, 9 Oct 2012 16:05:56 +0000 (20:05 +0400)]
GPIO: Add support for GPIO on CLPS711X-target platform
The CLPS711X CPUs provide some GPIOs for use in the system. This
driver provides support for these via gpiolib. Due to platform
limitations, driver does not support interrupts, only inputs and
outputs.
Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Ashish Jangam [Fri, 14 Sep 2012 13:30:16 +0000 (19:00 +0530)]
DA9055 GPIO driver
This is the GPIO patch for the DA9055 PMIC. This patch has got
dependency on the DA9055 MFD core.
This patch is functionally tested on SMDK6410 board.
Signed-off-by: David Dajun Chen <dchen@diasemi.com>
Signed-off-by: Ashish Jangam <ashish.jangam@kpitcummins.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Tobias Klauser [Fri, 5 Oct 2012 09:37:38 +0000 (11:37 +0200)]
gpio/gpio-omap: Use existing pointer to struct device
A pointer to "pdev->dev" is already stored in "dev", so use it in
devm_kzalloc.
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Acked-by: Kevin Hilman <khilman@ti.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Tobias Klauser [Fri, 5 Oct 2012 09:45:28 +0000 (11:45 +0200)]
gpio/gpio-pl061: Covert to use devm_* functions
Use the devm_* family of functions during probe to reduce the error
handling code footprint.
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Linus Torvalds [Sun, 14 Oct 2012 21:41:04 +0000 (14:41 -0700)]
Linux 3.7-rc1
Linus Torvalds [Sun, 14 Oct 2012 21:39:05 +0000 (14:39 -0700)]
Merge branch 'upstream' of git://git.linux-mips.org/ralf/upstream-linus
Pull MIPS update from Ralf Baechle:
"Cleanups and fixes for breakage that occured earlier during this merge
phase. Also a few patches that didn't make the first pull request.
Of those is the Alchemy work that merges code for many of the SOCs and
evaluation boards thus among other code shrinkage, reduces the number
of MIPS defconfigs by 5."
* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (22 commits)
MIPS: SNI: Switch RM400 serial to SCCNXP driver
MIPS: Remove unused empty_bad_pmd_table[] declaration.
MIPS: MT: Remove kspd.
MIPS: Malta: Fix section mismatch.
MIPS: asm-offset.c: Delete unused irq_cpustat_t struct offsets.
MIPS: Alchemy: Merge PB1100/1500 support into DB1000 code.
MIPS: Alchemy: merge PB1550 support into DB1550 code
MIPS: Alchemy: Single kernel for DB1200/1300/1550
MIPS: Optimize TLB refill for RI/XI configurations.
MIPS: proc: Cleanup printing of ASEs.
MIPS: Hardwire detection of DSP ASE Rev 2 for systems, as required.
MIPS: Add detection of DSP ASE Revision 2.
MIPS: Optimize pgd_init and pmd_init
MIPS: perf: Add perf functionality for BMIPS5000
MIPS: perf: Split the Kconfig option CONFIG_MIPS_MT_SMP
MIPS: perf: Remove unnecessary #ifdef
MIPS: perf: Add cpu feature bit for PCI (performance counter interrupt)
MIPS: perf: Change the "mips_perf_event" table unsupported indicator.
MIPS: Align swapper_pg_dir to 64K for better TLB Refill code.
vmlinux.lds.h: Allow architectures to add sections to the front of .bss
...
Linus Torvalds [Sun, 14 Oct 2012 20:39:34 +0000 (13:39 -0700)]
Merge branch 'modules-next' of git://git./linux/kernel/git/rusty/linux
Pull module signing support from Rusty Russell:
"module signing is the highlight, but it's an all-over David Howells frenzy..."
Hmm "Magrathea: Glacier signing key". Somebody has been reading too much HHGTTG.
* 'modules-next' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux: (37 commits)
X.509: Fix indefinite length element skip error handling
X.509: Convert some printk calls to pr_devel
asymmetric keys: fix printk format warning
MODSIGN: Fix 32-bit overflow in X.509 certificate validity date checking
MODSIGN: Make mrproper should remove generated files.
MODSIGN: Use utf8 strings in signer's name in autogenerated X.509 certs
MODSIGN: Use the same digest for the autogen key sig as for the module sig
MODSIGN: Sign modules during the build process
MODSIGN: Provide a script for generating a key ID from an X.509 cert
MODSIGN: Implement module signature checking
MODSIGN: Provide module signing public keys to the kernel
MODSIGN: Automatically generate module signing keys if missing
MODSIGN: Provide Kconfig options
MODSIGN: Provide gitignore and make clean rules for extra files
MODSIGN: Add FIPS policy
module: signature checking hook
X.509: Add a crypto key parser for binary (DER) X.509 certificates
MPILIB: Provide a function to read raw data into an MPI
X.509: Add an ASN.1 decoder
X.509: Add simple ASN.1 grammar compiler
...
Matt Fleming [Fri, 12 Oct 2012 10:19:59 +0000 (11:19 +0100)]
x86, boot: Explicitly include autoconf.h for hostprogs
The hostprogs need access to the CONFIG_* symbols found in
include/generated/autoconf.h. But commit
abbf1590de22 ("UAPI: Partition
the header include path sets and add uapi/ header directories") replaced
$(LINUXINCLUDE) with $(USERINCLUDE) which doesn't contain the necessary
include paths.
This has the undesirable effect of breaking the EFI boot stub because
the #ifdef CONFIG_EFI_STUB code in arch/x86/boot/tools/build.c is
never compiled.
It should also be noted that because $(USERINCLUDE) isn't exported by
the top-level Makefile it's actually empty in arch/x86/boot/Makefile.
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Ingo Molnar <mingo@kernel.org>
Acked-by: David Howells <dhowells@redhat.com>
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Ingo Molnar [Sun, 14 Oct 2012 08:40:57 +0000 (10:40 +0200)]
perf: Fix UAPI fallout
The UAPI commits forgot to test tooling builds such as tools/perf/,
and this fixes the fallout.
Manual conversion.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Sun, 14 Oct 2012 00:18:53 +0000 (17:18 -0700)]
Merge branch 'late-for-linus' of git://git.linaro.org/people/rmk/linux-arm
Pull ARM update from Russell King:
"This is the final round of stuff for ARM, left until the end of the
merge window to reduce the number of conflicts. This set contains the
ARM part of David Howells UAPI changes, and a fix to the ordering of
'select' statements in ARM Kconfig files (see the appropriate commit
for why this happened - thanks to Andrew Morton for pointing out the
problem.)
I've left this as long as I dare for this window to avoid conflicts,
and I regenerated the config patch yesterday, posting it to our
mailing list for review and testing. I have several acks which
include successful test reports for it.
However, today I notice we've got new conflicts with previously unseen
code... though that conflict should be trivial (it's my changes vs a
one liner.)"
* 'late-for-linus' of git://git.linaro.org/people/rmk/linux-arm:
ARM: config: make sure that platforms are ordered by option string
ARM: config: sort select statements alphanumerically
UAPI: (Scripted) Disintegrate arch/arm/include/asm
Fix up fairly conflict in arch/arm/Kconfig (the select re-organization
vs recent addition of GENERIC_KERNEL_EXECVE)
Linus Torvalds [Sat, 13 Oct 2012 20:28:32 +0000 (13:28 -0700)]
Merge tag 'disintegrate-main-
20121013' of git://git.infradead.org/users/dhowells/linux-headers
Pull UAPI disintegration for include/linux/{,byteorder/}*.h from David Howells:
"The patches contained herein do the following:
(1) Remove kernel-only stuff in linux/ppp-comp.h from the UAPI. I checked
this with Paul Mackerras before I created the patch and he suggested some
extra bits to unexport.
(2) Remove linux/blk_types.h entirely from the UAPI as none of it is userspace
applicable, and remove from the UAPI that part of linux/fs.h that was the
reason for linux/blk_types.h being exported in the first place. I
discussed this with Jens Axboe before creating the patch.
(3) The big patch of the series to disintegrate include/linux/*.h as a unit.
This could be split up, though there would be collisions in moving stuff
between the two Kbuild files when the parts are merged as that file is
sorted alphabetically rather than being grouped by subsystem.
Of this set of headers, 17 files have changed in the UAPI exported region
since the 4th and only 8 since the 9th so there isn't much change in this
area - as one might expect.
It should be pretty obvious and straightforward if it does come to fixing
up: stuff in __KERNEL__ guards stays where it is and stuff outside moves
to the same file in the include/uapi/linux/ directory.
If a new file appears then things get a bit more complicated as the
"headers +=" line has to move to include/uapi/linux/Kbuild. Only one new
file has appeared since the 9th and I judge this type of event relatively
unlikely.
(4) A patch to disintegrate include/linux/byteorder/*.h as a unit.
Signed-off-by: David Howells <dhowells@redhat.com>"
* tag 'disintegrate-main-
20121013' of git://git.infradead.org/users/dhowells/linux-headers:
UAPI: (Scripted) Disintegrate include/linux/byteorder
UAPI: (Scripted) Disintegrate include/linux
UAPI: Unexport linux/blk_types.h
UAPI: Unexport part of linux/ppp-comp.h
Linus Torvalds [Sat, 13 Oct 2012 20:26:39 +0000 (13:26 -0700)]
Merge tag 'disintegrate-spi-
20121009' of git://git.infradead.org/users/dhowells/linux-headers
Pull spi UAPI disintegration from David Howells:
"This is to complete part of the Userspace API (UAPI) disintegration
for which the preparatory patches were pulled recently. After these
patches, userspace headers will be segregated into:
include/uapi/linux/.../foo.h
for the userspace interface stuff, and:
include/linux/.../foo.h
for the strictly kernel internal stuff.
Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Grant Likely <grant.likely@secretlab.ca>"
* tag 'disintegrate-spi-
20121009' of git://git.infradead.org/users/dhowells/linux-headers:
UAPI: (Scripted) Disintegrate include/linux/spi
Linus Torvalds [Sat, 13 Oct 2012 20:25:19 +0000 (13:25 -0700)]
Merge tag 'openrisc-uapi' of git://openrisc.net/jonas/linux
Pull OpenRISC uapi disintegration from Jonas Bonn:
"OpenRISC UAPI disintegration work from David Howells"
* tag 'openrisc-uapi' of git://openrisc.net/jonas/linux:
UAPI: (Scripted) Disintegrate arch/openrisc/include/asm
Linus Torvalds [Sat, 13 Oct 2012 20:23:39 +0000 (13:23 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/ebiederm/user-namespace
Pull user namespace compile fixes from Eric W Biederman:
"This tree contains three trivial fixes. One compiler warning, one
thinko fix, and one build fix"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace:
btrfs: Fix compilation with user namespace support enabled
userns: Fix posix_acl_file_xattr_userns gid conversion
userns: Properly print bluetooth socket uids
Linus Torvalds [Sat, 13 Oct 2012 20:22:01 +0000 (13:22 -0700)]
Merge tag 'md-3.7' of git://neil.brown.name/md
Pull md updates from NeilBrown:
- "discard" support, some dm-raid improvements and other assorted bits
and pieces.
* tag 'md-3.7' of git://neil.brown.name/md: (29 commits)
md: refine reporting of resync/reshape delays.
md/raid5: be careful not to resize_stripes too big.
md: make sure manual changes to recovery checkpoint are saved.
md/raid10: use correct limit variable
md: writing to sync_action should clear the read-auto state.
Subject: [PATCH] md:change resync_mismatches to atomic64_t to avoid races
md/raid5: make sure to_read and to_write never go negative.
md: When RAID5 is dirty, force reconstruct-write instead of read-modify-write.
md/raid5: protect debug message against NULL derefernce.
md/raid5: add some missing locking in handle_failed_stripe.
MD: raid5 avoid unnecessary zero page for trim
MD: raid5 trim support
md/bitmap:Don't use IS_ERR to judge alloc_page().
md/raid1: Don't release reference to device while handling read error.
raid: replace list_for_each_continue_rcu with new interface
add further __init annotations to crypto/xor.c
DM RAID: Fix for "sync" directive ineffectiveness
DM RAID: Fix comparison of index and quantity for "rebuild" parameter
DM RAID: Add rebuild capability for RAID10
DM RAID: Move 'rebuild' checking code to its own function
...
Russell King [Sat, 13 Oct 2012 16:14:17 +0000 (17:14 +0100)]
Merge branch 'config' into late-for-linus
Russell King [Fri, 12 Oct 2012 13:20:52 +0000 (14:20 +0100)]
ARM: config: make sure that platforms are ordered by option string
The large platform selection choice should be sorted by option string
so it's easy to find the platform you're looking for. Fix the few
options which are out of this order.
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Russell King [Sat, 6 Oct 2012 16:12:25 +0000 (17:12 +0100)]
ARM: config: sort select statements alphanumerically
As suggested by Andrew Morton:
This is a pet peeve of mine. Any time there's a long list of items
(header file inclusions, kconfig entries, array initalisers, etc) and
someone wants to add a new item, they *always* go and stick it at the
end of the list.
Guys, don't do this. Either put the new item into a randomly-chosen
position or, probably better, alphanumerically sort the list.
lets sort all our select statements alphanumerically. This commit was
created by the following perl:
while (<>) {
while (/\\\s*$/) {
$_ .= <>;
}
undef %selects if /^\s*config\s+/;
if (/^\s+select\s+(\w+).*/) {
if (defined($selects{$1})) {
if ($selects{$1} eq $_) {
print STDERR "Warning: removing duplicated $1 entry\n";
} else {
print STDERR "Error: $1 differently selected\n".
"\tOld: $selects{$1}\n".
"\tNew: $_\n";
exit 1;
}
}
$selects{$1} = $_;
next;
}
if (%selects and (/^\s*$/ or /^\s+help/ or /^\s+---help---/ or
/^endif/ or /^endchoice/)) {
foreach $k (sort (keys %selects)) {
print "$selects{$k}";
}
undef %selects;
}
print;
}
if (%selects) {
foreach $k (sort (keys %selects)) {
print "$selects{$k}";
}
}
It found two duplicates:
Warning: removing duplicated S5P_SETUP_MIPIPHY entry
Warning: removing duplicated HARDIRQS_SW_RESEND entry
and they are identical duplicates, hence the shrinkage in the diffstat
of two lines.
We have four testers reporting success of this change (Tony, Stephen,
Linus and Sekhar.)
Acked-by: Jason Cooper <jason@lakedaemon.net>
Acked-by: Tony Lindgren <tony@atomide.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
David Howells [Sat, 13 Oct 2012 09:46:49 +0000 (10:46 +0100)]
UAPI: (Scripted) Disintegrate include/linux/byteorder
Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Michael Kerrisk <mtk.manpages@gmail.com>
Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Acked-by: Dave Jones <davej@redhat.com>
David Howells [Sat, 13 Oct 2012 09:46:48 +0000 (10:46 +0100)]
UAPI: (Scripted) Disintegrate include/linux
Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Michael Kerrisk <mtk.manpages@gmail.com>
Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Acked-by: Dave Jones <davej@redhat.com>
David Howells [Sat, 13 Oct 2012 09:45:06 +0000 (10:45 +0100)]
UAPI: Unexport linux/blk_types.h
It seems that was linux/blk_types.h incorrectly exported to fix up some missing
bits required by the exported parts of linux/fs.h (READ, WRITE, READA, etc.).
So unexport linux/blk_types.h and unexport the relevant bits of linux/fs.h.
Signed-off-by: David Howells <dhowells@redhat.com>
cc: Jens Axboe <jaxboe@fusionio.com>
cc: Tejun Heo <tj@kernel.org>
cc: Al Viro <viro@ZenIV.linux.org.uk>
David Howells [Sat, 13 Oct 2012 08:58:38 +0000 (09:58 +0100)]
UAPI: Unexport part of linux/ppp-comp.h
Unexport part of linux/ppp-comp.h as userspace can't make use of that bit.
Signed-off-by: David Howells <dhowells@redhat.com>
cc: Paul Mackerras <paulus@samba.org>
cc: David Miller <davem@davemloft.net>
Jonas Bonn [Sat, 13 Oct 2012 05:38:37 +0000 (07:38 +0200)]
Merge tag 'disintegrate-openrisc-
20121009' of git://git.infradead.org/users/dhowells/linux-headers
UAPI Disintegration 2012-10-09
* tag 'disintegrate-openrisc-
20121009' of git://git.infradead.org/users/dhowells/linux-headers:
UAPI: (Scripted) Disintegrate arch/openrisc/include/asm
Linus Torvalds [Sat, 13 Oct 2012 02:29:00 +0000 (11:29 +0900)]
Merge branch 'for-linus' of git://git./linux/kernel/git/jmorris/linux-security
Pull TPM bugfixes from James Morris.
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security:
tpm: Propagate error from tpm_transmit to fix a timeout hang
driver/char/tpm: fix regression causesd by ppi
Linus Torvalds [Sat, 13 Oct 2012 02:27:59 +0000 (11:27 +0900)]
Merge branch 'release' of git://git./linux/kernel/git/lenb/linux
Pull ACPI & Thermal updates from Len Brown:
"The generic Linux thermal layer is gaining some new capabilities
(generic cooling via cpufreq) and some new customers (ARM).
Also, an ACPI EC bug fix plus a regression fix."
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux: (30 commits)
tools/power/acpi/acpidump: remove duplicated include from acpidump.c
ACPI idle, CPU hotplug: Fix NULL pointer dereference during hotplug
cpuidle / ACPI: fix potential NULL pointer dereference
ACPI: EC: Add a quirk for CLEVO M720T/M730T laptop
ACPI: EC: Make the GPE storm threshold a module parameter
thermal: Exynos: Fix NULL pointer dereference in exynos_unregister_thermal()
Thermal: Fix bug on cpu_cooling, cooling device's id conflict problem.
thermal: exynos: Use devm_* functions
ARM: exynos: add thermal sensor driver platform data support
thermal: exynos: register the tmu sensor with the kernel thermal layer
thermal: exynos5: add exynos5250 thermal sensor driver support
hwmon: exynos4: move thermal sensor driver to driver/thermal directory
thermal: add generic cpufreq cooling implementation
Fix a build error.
thermal: Fix potential NULL pointer accesses
thermal: add Renesas R-Car thermal sensor support
thermal: fix potential out-of-bounds memory access
Thermal: Introduce locking for cdev.thermal_instances list.
Thermal: Unify the code for both active and passive cooling
Thermal: Introduce simple arbitrator for setting device cooling state
...
Linus Torvalds [Sat, 13 Oct 2012 02:25:41 +0000 (11:25 +0900)]
Merge tag 'for-3.7' of git://openrisc.net/jonas/linux
Pull OpenRISC updates from Jonas Bonn:
"Fixups for some corner cases, build issues, and some obvious bugs in
IRQ handling. No major changes."
* tag 'for-3.7' of git://openrisc.net/jonas/linux:
openrisc: mask interrupts in irq_mask_ack function
openrisc: fix typos in comments and warnings
openrisc: PIC should act on domain-local irqs
openrisc: Make cpu_relax() invoke barrier()
audit: define AUDIT_ARCH_OPENRISC
openrisc: delay: fix handling of counter overflow
openrisc: delay: fix loops calculation for __const_udelay
Linus Torvalds [Sat, 13 Oct 2012 02:22:31 +0000 (11:22 +0900)]
Merge tag 'disintegrate-misc-arches-
20121010' of git://git.infradead.org/users/dhowells/linux-headers
Pull UAPI disintegration for misc arches from David Howells:
"UAPI disintegration for MN10300, FRV and AVR32 arches"
* tag 'disintegrate-misc-arches-
20121010' of git://git.infradead.org/users/dhowells/linux-headers:
UAPI: (Scripted) Disintegrate arch/mn10300/include/asm
UAPI: (Scripted) Disintegrate arch/frv/include/asm
UAPI: (Scripted) Disintegrate arch/avr32/include/asm
Linus Torvalds [Sat, 13 Oct 2012 02:21:15 +0000 (11:21 +0900)]
Merge branch 'merge' of git://git./linux/kernel/git/benh/powerpc
Pull powerpc uapi disintegration from Benjamin Herrenschmidt.
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc:
UAPI: (Scripted) Disintegrate arch/powerpc/include/asm
Linus Torvalds [Sat, 13 Oct 2012 02:20:04 +0000 (11:20 +0900)]
Merge tag 'arm64-uapi' of git://git./linux/kernel/git/cmarinas/linux-aarch64
Pull arm64 uapi disintegration from Catalin Marinas:
"UAPI headers for arm64 together with some clean-up to make it
possible:
- Do not export the COMPAT_* definitions to user
- Simplify the compat unistd32.h definitions and remove the
__SYSCALL_COMPAT guard
- Disintegrate the arch/arm64/include/asm/* headers"
* tag 'arm64-uapi' of git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas/linux-aarch64:
UAPI: (Scripted) Disintegrate arch/arm64/include/asm
arm64: Do not export the compat-specific definitions to the user
arm64: Do not include asm/unistd32.h in asm/unistd.h
arm64: Remove unused definitions from asm/unistd32.h
Linus Torvalds [Sat, 13 Oct 2012 02:19:00 +0000 (11:19 +0900)]
Merge tag 'for-linus' of git://linux-c6x.org/git/projects/linux-c6x-upstreaming
Pull C6X UAPI disintegration from Mark Salter:
- scripted UAPI disintegration by David Howells.
* tag 'for-linus' of git://linux-c6x.org/git/projects/linux-c6x-upstreaming:
UAPI: (Scripted) Disintegrate arch/c6x/include/asm
Linus Torvalds [Sat, 13 Oct 2012 02:16:58 +0000 (11:16 +0900)]
Merge tag 'for_linus-3.7' of git://git./linux/kernel/git/jwessel/kgdb
Pull KGDB/KDB fixes and cleanups from Jason Wessel:
"Cleanups
- Clean up compile warnings in kgdboc.c and x86/kernel/kgdb.c
- Add module event hooks for simplified debugging with gdb
Fixes
- Fix kdb to stop paging with 'q' on bta and dmesg
- Fix for data that scrolls off the vga console due to line wrapping
when using the kdb pager
New
- The debug core registers for kernel module events which allows a
kernel aware gdb to automatically load symbols and break on entry
to a kernel module
- Allow kgdboc=kdb to setup kdb on the vga console"
* tag 'for_linus-3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/jwessel/kgdb:
tty/console: fix warnings in drivers/tty/serial/kgdboc.c
kdb,vt_console: Fix missed data due to pager overruns
kdb: Fix dmesg/bta scroll to quit with 'q'
kgdboc: Accept either kbd or kdb to activate the vga + keyboard kdb shell
kgdb,x86: fix warning about unused variable
mips,kgdb: fix recursive page fault with CONFIG_KPROBES
kgdb: Add module event hooks
Linus Torvalds [Sat, 13 Oct 2012 02:14:29 +0000 (11:14 +0900)]
Merge tag 'stable/for-linus-3.7-uapi-tag' of git://git./linux/kernel/git/konrad/xen
Pull Xen UAPI disintegration from Konrad Rzeszutek Wilk:
"This has the UAPI disintegration work done by David Howells"
* tag 'stable/for-linus-3.7-uapi-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen:
UAPI: (Scripted) Disintegrate include/xen
Linus Torvalds [Sat, 13 Oct 2012 02:07:40 +0000 (11:07 +0900)]
Merge tag 'mmc-merge-for-3.7-rc1-part2' of git://git./linux/kernel/git/cjb/mmc
Pull two more mmc changes from Chris Ball:
- Disintegrate UAPI
- fix a mismerge that caused a build error.
* tag 'mmc-merge-for-3.7-rc1-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc:
UAPI: (Scripted) Disintegrate include/linux/mmc
mmc: mxs-mmc: Fix merge issue causing build error
Linus Torvalds [Sat, 13 Oct 2012 01:57:57 +0000 (10:57 +0900)]
Merge tag 'dm-3.7-changes' of git://git./linux/kernel/git/agk/linux-dm
Pull device-mapper changes from Alasdair G Kergon:
"Remove the power-of-2 block size constraint on discards in dm thin
provisioning and factor the bio_prison code out into a separate module
(for sharing with the forthcoming cache target).
Use struct bio's front_pad to eliminate the use of one separate
mempool by bio-based devices.
A few other tiny clean-ups."
* tag 'dm-3.7-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/agk/linux-dm:
dm: store dm_target_io in bio front_pad
dm thin: move bio_prison code to separate module
dm thin: prepare to separate bio_prison code
dm thin: support discard with non power of two block size
dm persistent data: convert to use le32_add_cpu
dm: use ACCESS_ONCE for sysfs values
dm bufio: use list_move
dm mpath: fix check for null mpio in end_io fn
Linus Torvalds [Sat, 13 Oct 2012 01:57:01 +0000 (10:57 +0900)]
Merge tag 'scsi-misc' of git://git./linux/kernel/git/jejb/scsi
Pull misc SCSI updates from James Bottomley:
"This is an assorted set of stragglers into the merge window with
driver updates for megaraid_sas, lpfc, bfi and mvumi. It also
includes some fairly major fixes for virtio-scsi (scatterlist init),
scsi_debug (off by one error), storvsc (use after free) and qla2xxx
(potential deadlock).
Signed-off-by: James Bottomley <JBottomley@Parallels.com>"
* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (49 commits)
[SCSI] storvsc: Account for in-transit packets in the RESET path
[SCSI] qla2xxx: fix potential deadlock on ha->hardware_lock
[SCSI] scsi_debug: Fix off-by-one bug when unmapping region
[SCSI] Shorten the path length of scsi_cmd_to_driver()
[SCSI] virtio-scsi: support online resizing of disks
[SCSI] virtio-scsi: fix LUNs greater than 255
[SCSI] virtio-scsi: initialize scatterlist structure
[SCSI] megaraid_sas: Version, Changelog, Copyright update
[SCSI] megaraid_sas: Remove duplicate code
[SCSI] megaraid_sas: Add SystemPD FastPath support
[SCSI] megaraid_sas: Add array boundary check for SystemPD
[SCSI] megaraid_sas: Load io_request DataLength in bytes
[SCSI] megaraid_sas: Add module param for configurable MSI-X vector count
[SCSI] megaraid_sas: Remove un-needed completion_lock spinlock calls
[SCSI] lpfc 8.3.35: Update lpfc version for 8.3.35 driver release
[SCSI] lpfc 8.3.35: Fixed not reporting logical link speed to SCSI midlayer when QoS not on
[SCSI] lpfc 8.3.35: Fix error with fabric service parameters causing performance issues
[SCSI] lpfc 8.3.35: Fixed SCSI host create showing wrong link speed on SLI3 HBA ports
[SCSI] lpfc 8.3.35: Fixed not checking solicition in progress bit when verifying FCF record for use
[SCSI] lpfc 8.3.35: Fixed messages for misconfigured port errors
...
Linus Torvalds [Sat, 13 Oct 2012 01:56:03 +0000 (10:56 +0900)]
Merge branch 'for-linus' of git://git./linux/kernel/git/dtor/input
Pull input layer updates from Dmitry Torokhov:
"2nd round of updates for the input subsystem. With it input core no
longer limits number of character devices per event handler (such as
evdev) to 32, but switches to dynamic minors once legacy range is
exhausted. This should get multi-seat installations that currently
run our of event devices very quickly.
You will also get an update for Wacom driver and a couple of driver
fixes."
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: extend the number of event (and other) devices
Input: mousedev - mark mousedev interfaces as non-seekable
Input: mousedev - rename mixdev_open to opened_by_mixdev
Input: mousedev - reformat structure initializers
Input: mousedev - factor out psaux code to reduce #ifdefery
Input: samsung-keypad - add clk_prepare and clk_unprepare
Input: atmel_mxt_ts - simplify mxt_dump_message
Input: wacom - clean up wacom_query_tablet_data
Input: wacom - introduce wacom_fix_phy_from_hid
Input: wacom - allow any multi-input Intuos device to set prox
Input: wacom - report correct touch contact size for I5/Bamboo
Linus Torvalds [Sat, 13 Oct 2012 01:53:54 +0000 (10:53 +0900)]
Merge branch 'for-3.7' of git://linux-nfs.org/~bfields/linux
Pull nfsd update from J Bruce Fields:
"Another relatively quiet cycle. There was some progress on my
remaining 4.1 todo's, but a couple of them were just of the form
"check that we do X correctly", so didn't have much affect on the
code.
Other than that, a bunch of cleanup and some bugfixes (including an
annoying NFSv4.0 state leak and a busy-loop in the server that could
cause it to peg the CPU without making progress)."
* 'for-3.7' of git://linux-nfs.org/~bfields/linux: (46 commits)
UAPI: (Scripted) Disintegrate include/linux/sunrpc
UAPI: (Scripted) Disintegrate include/linux/nfsd
nfsd4: don't allow reclaims of expired clients
nfsd4: remove redundant callback probe
nfsd4: expire old client earlier
nfsd4: separate session allocation and initialization
nfsd4: clean up session allocation
nfsd4: minor free_session cleanup
nfsd4: new_conn_from_crses should only allocate
nfsd4: separate connection allocation and initialization
nfsd4: reject bad forechannel attrs earlier
nfsd4: enforce per-client sessions/no-sessions distinction
nfsd4: set cl_minorversion at create time
nfsd4: don't pin clientids to pseudoflavors
nfsd4: fix bind_conn_to_session xdr comment
nfsd4: cast readlink() bug argument
NFSD: pass null terminated buf to kstrtouint()
nfsd: remove duplicate init in nfsd4_cb_recall
nfsd4: eliminate redundant nfs4_free_stateid
fs/nfsd/nfs4idmap.c: adjust inconsistent IS_ERR and PTR_ERR
...
Linus Torvalds [Sat, 13 Oct 2012 01:51:48 +0000 (10:51 +0900)]
Merge git://git./linux/kernel/git/davem/net
Pull networking updates from David Miller:
1) Alexey Kuznetsov noticed we routed TCP resets improperly in the
assymetric routing case, fix this by reverting a change that made us
use the incoming interface in the outgoing route key when we didn't
have a socket context to work with.
2) TCP sysctl kernel memory leakage to userspace fix from Alan Cox.
3) Move UAPI bits from David Howells, WIMAX and CAN this time.
4) Fix TX stalls in e1000e wrt. Byte Queue Limits, from Hiroaki
SHIMODA, Denys Fedoryshchenko, and Jesse Brandeburg.
5) Fix IPV6 crashes in packet generator module, from Amerigo Wang.
6) Tidies and fixes in the new VXLAN driver from Stephen Hemminger.
7) Bridge IP options parse doesn't check first if SKB header has at
least an IP header's worth of content present. Fix from Sarveshwar
Bandi.
8) The kernel now generates compound pages on transmit and the Xen
netback drivers needs some adjustments in order to handle this. Fix
from Ian Campbell.
9) Turn off ASPM in JME driver, from Kevin Bardon and Matthew Garrett.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (43 commits)
mcs7830: Fix link state detection
net: add doc for in4_pton()
net: add doc for in6_pton()
vti: fix sparse bit endian warnings
tcp: resets are misrouted
usbnet: Support devices reporting idleness
Add CDC-ACM support for the CX93010-2x UCMxx USB Modem
net/ethernet/jme: disable ASPM
tcp: sysctl interface leaks 16 bytes of kernel memory
kaweth: print correct debug ptr
e1000e: Change wthresh to 1 to avoid possible Tx stalls
ipv4: fix route mark sparse warning
xen: netback: handle compound page fragments on transmit.
bridge: Pull ip header into skb->data before looking into ip header.
isdn: fix a wrapping bug in isdn_ppp_ioctl()
vxlan: fix oops when give unknown ifindex
vxlan: fix receive checksum handling
vxlan: add additional headroom
vxlan: allow configuring port range
vxlan: associate with tunnel socket on transmit
...
Linus Torvalds [Sat, 13 Oct 2012 01:47:41 +0000 (10:47 +0900)]
Merge git://git./linux/kernel/git/davem/sparc
Pull Sparc updates from David Miller:
1) Updated syscall tracing fix from Al Viro.
2) SUN4V error reporting was deficient in several areas.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc:
sparc64: fix ptrace interaction with force_successful_syscall_return()
sparc64: Fix deficiencies in sun4v error reporting.
Linus Torvalds [Sat, 13 Oct 2012 01:46:18 +0000 (10:46 +0900)]
Merge git://git./linux/kernel/git/cmetcalf/linux-tile
Pull tile arch update from Chris Metcalf:
"The bulk of this change is the tile uapi disintegration. There is
also a one-line change in here to enable interrupts in
do_work_pending() to avoid a WARN_ON in _local_bh_enable_ip()."
* git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile:
arch/tile: enable interrupts in do_work_pending()
UAPI: (Scripted) Disintegrate arch/tile/include/asm
UAPI: (Scripted) Disintegrate arch/tile/include/arch
Linus Torvalds [Sat, 13 Oct 2012 01:38:34 +0000 (10:38 +0900)]
Merge tag 'please-pull-dhowells-uapi' of git://git./linux/kernel/git/aegl/linux
Pull ia64 UAPI changes from Tony Luck:
"ia64 pieces of David Howells great UAPI include file move"
* tag 'please-pull-dhowells-uapi' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux:
UAPI: (Scripted) Disintegrate arch/ia64/include/asm
Linus Torvalds [Sat, 13 Oct 2012 01:20:11 +0000 (10:20 +0900)]
Merge branch 'perf-urgent-for-linus' of git://git./linux/kernel/git/tip/tip
Pull perf updates from Ingo Molnar:
"This tree includes some late late perf items that missed the first
round:
tools:
- Bash auto completion improvements, now we can auto complete the
tools long options, tracepoint event names, etc, from Namhyung Kim.
- Look up thread using tid instead of pid in 'perf sched'.
- Move global variables into a perf_kvm struct, from David Ahern.
- Hists refactorings, preparatory for improved 'diff' command, from
Jiri Olsa.
- Hists refactorings, preparatory for event group viewieng work, from
Namhyung Kim.
- Remove double negation on optional feature macro definitions, from
Namhyung Kim.
- Remove several cases of needless global variables, on most
builtins.
- misc fixes
kernel:
- sysfs support for IBS on AMD CPUs, from Robert Richter.
- Support for an upcoming Intel CPU, the Xeon-Phi / Knights Corner
HPC blade PMU, from Vince Weaver.
- misc fixes"
* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (46 commits)
perf: Fix perf_cgroup_switch for sw-events
perf: Clarify perf_cpu_context::active_pmu usage by renaming it to ::unique_pmu
perf/AMD/IBS: Add sysfs support
perf hists: Add more helpers for hist entry stat
perf hists: Move he->stat.nr_events initialization to a template
perf hists: Introduce struct he_stat
perf diff: Removing the total_period argument from output code
perf tool: Add hpp interface to enable/disable hpp column
perf tools: Removing hists pair argument from output path
perf hists: Separate overhead and baseline columns
perf diff: Refactor diff displacement possition info
perf hists: Add struct hists pointer to struct hist_entry
perf tools: Complete tracepoint event names
perf/x86: Add support for Intel Xeon-Phi Knights Corner PMU
perf evlist: Remove some unused methods
perf evlist: Introduce add_newtp method
perf kvm: Move global variables into a perf_kvm struct
perf tools: Convert to BACKTRACE_SUPPORT
perf tools: Long option completion support for each subcommands
perf tools: Complete long option names of perf command
...
Markus Trippelsdorf [Tue, 9 Oct 2012 18:01:56 +0000 (20:01 +0200)]
perf: Handle new rbtree implementation
Perf build fails with the new rbtree implementation:
../../lib/rbtree.c:24:36: fatal error: linux/rbtree_augmented.h: No such file or directory compilation terminated.
Fix by updating the Makefile and adding a btree_augmented.h
wrapper.
Reported-and-tested-by: Borislav Petkov <borislav.petkov@amd.com>
Signed-off-by: Markus Trippelsdorf <markus@trippelsdorf.de>
Cc: Arnaldo Carvalho de Melo <acme@infradead.org>
Cc: Borislav Petkov <bp@amd64.org>
Link: http://lkml.kernel.org/r/20121009180156.GA245@x4
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Sat, 13 Oct 2012 01:05:52 +0000 (10:05 +0900)]
Merge branch 'for-linus' of git://git./linux/kernel/git/viro/signal
Pull third pile of kernel_execve() patches from Al Viro:
"The last bits of infrastructure for kernel_thread() et.al., with
alpha/arm/x86 use of those. Plus sanitizing the asm glue and
do_notify_resume() on alpha, fixing the "disabled irq while running
task_work stuff" breakage there.
At that point the rest of kernel_thread/kernel_execve/sys_execve work
can be done independently for different architectures. The only
pending bits that do depend on having all architectures converted are
restrictred to fs/* and kernel/* - that'll obviously have to wait for
the next cycle.
I thought we'd have to wait for all of them done before we start
eliminating the longjump-style insanity in kernel_execve(), but it
turned out there's a very simple way to do that without flagday-style
changes."
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal:
alpha: switch to saner kernel_execve() semantics
arm: switch to saner kernel_execve() semantics
x86, um: convert to saner kernel_execve() semantics
infrastructure for saner ret_from_kernel_thread semantics
make sure that kernel_thread() callbacks call do_exit() themselves
make sure that we always have a return path from kernel_execve()
ppc: eeh_event should just use kthread_run()
don't bother with kernel_thread/kernel_execve for launching linuxrc
alpha: get rid of switch_stack argument of do_work_pending()
alpha: don't bother passing switch_stack separately from regs
alpha: take SIGPENDING/NOTIFY_RESUME loop into signal.c
alpha: simplify TIF_NEED_RESCHED handling
Linus Torvalds [Sat, 13 Oct 2012 01:04:42 +0000 (10:04 +0900)]
Merge branch 'for-linus' of git://git./linux/kernel/git/viro/vfs
Pull third pile of VFS updates from Al Viro:
"Stuff from Jeff Layton, mostly. Sanitizing interplay between audit
and namei, removing a lot of insanity from audit_inode() mess and
getting things ready for his ESTALE patchset."
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
procfs: don't need a PATH_MAX allocation to hold a string representation of an int
vfs: embed struct filename inside of names_cache allocation if possible
audit: make audit_inode take struct filename
vfs: make path_openat take a struct filename pointer
vfs: turn do_path_lookup into wrapper around struct filename variant
audit: allow audit code to satisfy getname requests from its names_list
vfs: define struct filename and have getname() return it
vfs: unexport getname and putname symbols
acct: constify the name arg to acct_on
vfs: allocate page instead of names_cache buffer in mount_block_root
audit: overhaul __audit_inode_child to accomodate retrying
audit: optimize audit_compare_dname_path
audit: make audit_compare_dname_path use parent_len helper
audit: remove dirlen argument to audit_compare_dname_path
audit: set the name_len in audit_inode for parent lookups
audit: add a new "type" field to audit_names struct
audit: reverse arguments to audit_inode_child
audit: no need to walk list in audit_inode if name is NULL
audit: pass in dentry to audit_copy_inode wherever possible
audit: remove unnecessary NULL ptr checks from do_path_lookup
Jeff Layton [Wed, 10 Oct 2012 20:43:21 +0000 (16:43 -0400)]
procfs: don't need a PATH_MAX allocation to hold a string representation of an int
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Jeff Layton [Wed, 10 Oct 2012 20:43:13 +0000 (16:43 -0400)]
vfs: embed struct filename inside of names_cache allocation if possible
In the common case where a name is much smaller than PATH_MAX, an extra
allocation for struct filename is unnecessary. Before allocating a
separate one, try to embed the struct filename inside the buffer first. If
it turns out that that's not long enough, then fall back to allocating a
separate struct filename and redoing the copy.
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Jeff Layton [Wed, 10 Oct 2012 20:43:13 +0000 (16:43 -0400)]
audit: make audit_inode take struct filename
Keep a pointer to the audit_names "slot" in struct filename.
Have all of the audit_inode callers pass a struct filename ponter to
audit_inode instead of a string pointer. If the aname field is already
populated, then we can skip walking the list altogether and just use it
directly.
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Jeff Layton [Wed, 10 Oct 2012 20:43:10 +0000 (16:43 -0400)]
vfs: make path_openat take a struct filename pointer
...and fix up the callers. For do_file_open_root, just declare a
struct filename on the stack and fill out the .name field. For
do_filp_open, make it also take a struct filename pointer, and fix up its
callers to call it appropriately.
For filp_open, add a variant that takes a struct filename pointer and turn
filp_open into a wrapper around it.
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Jeff Layton [Wed, 10 Oct 2012 19:25:29 +0000 (15:25 -0400)]
vfs: turn do_path_lookup into wrapper around struct filename variant
...and make the user_path callers use that variant instead.
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Jeff Layton [Wed, 10 Oct 2012 19:25:28 +0000 (15:25 -0400)]
audit: allow audit code to satisfy getname requests from its names_list
Currently, if we call getname() on a userland string more than once,
we'll get multiple copies of the string and multiple audit_names
records.
Add a function that will allow the audit_names code to satisfy getname
requests using info from the audit_names list, avoiding a new allocation
and audit_names records.
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Jeff Layton [Wed, 10 Oct 2012 19:25:28 +0000 (15:25 -0400)]
vfs: define struct filename and have getname() return it
getname() is intended to copy pathname strings from userspace into a
kernel buffer. The result is just a string in kernel space. It would
however be quite helpful to be able to attach some ancillary info to
the string.
For instance, we could attach some audit-related info to reduce the
amount of audit-related processing needed. When auditing is enabled,
we could also call getname() on the string more than once and not
need to recopy it from userspace.
This patchset converts the getname()/putname() interfaces to return
a struct instead of a string. For now, the struct just tracks the
string in kernel space and the original userland pointer for it.
Later, we'll add other information to the struct as it becomes
convenient.
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Eric W. Biederman [Fri, 12 Oct 2012 21:25:24 +0000 (14:25 -0700)]
btrfs: Fix compilation with user namespace support enabled
When compiling with user namespace support btrfs fails like:
fs/btrfs/tree-log.c: In function ‘fill_inode_item’:
fs/btrfs/tree-log.c:2955:2: error: incompatible type for argument 3 of ‘btrfs_set_inode_uid’
fs/btrfs/ctree.h:2026:1: note: expected ‘u32’ but argument is of type ‘kuid_t’
fs/btrfs/tree-log.c:2956:2: error: incompatible type for argument 3 of ‘btrfs_set_inode_gid’
fs/btrfs/ctree.h:2027:1: note: expected ‘u32’ but argument is of type ‘kgid_t’
Fix this by using i_uid_read and i_gid_read in
Cc: Chris Mason <chris.mason@fusionio.com>
Cc: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Eric W. Biederman [Tue, 9 Oct 2012 22:11:55 +0000 (15:11 -0700)]
userns: Fix posix_acl_file_xattr_userns gid conversion
The code needs to be from_kgid(make_kgid(...)...) not
from_kuid(make_kgid(...)...). Doh!
Reported-by: Jan Kara <jack@suse.cz>
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Eric W. Biederman [Thu, 4 Oct 2012 03:32:17 +0000 (20:32 -0700)]
userns: Properly print bluetooth socket uids
With user namespace support enabled building bluetooth generated the warning.
net/bluetooth/af_bluetooth.c: In function ‘bt_seq_show’:
net/bluetooth/af_bluetooth.c:598:7: warning: format ‘%u’ expects argument of type ‘unsigned int’, but argument 7 has type ‘kuid_t’ [-Wformat]
Convert sock_i_uid from a kuid_t to a uid_t before printing, to avoid
this problem.
Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Cc: Masatake YAMATO <yamato@redhat.com>
Cc: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Mikulas Patocka [Fri, 12 Oct 2012 20:02:15 +0000 (21:02 +0100)]
dm: store dm_target_io in bio front_pad
Use the recently-added bio front_pad field to allocate struct dm_target_io.
Prior to this patch, dm_target_io was allocated from a mempool. For each
dm_target_io, there is exactly one bio allocated from a bioset.
This patch merges these two allocations into one allocation: we create a
bioset with front_pad equal to the size of dm_target_io so that every
bio allocated from the bioset has sizeof(struct dm_target_io) bytes
before it. We allocate a bio and use the bytes before the bio as
dm_target_io.
_tio_cache is removed and the tio_pool mempool is now only used for
request-based devices.
This idea was introduced by Kent Overstreet.
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Cc: Kent Overstreet <koverstreet@google.com>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: tj@kernel.org
Cc: Vivek Goyal <vgoyal@redhat.com>
Cc: Bill Pemberton <wfp5p@viridian.itc.virginia.edu>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Mike Snitzer [Fri, 12 Oct 2012 20:02:13 +0000 (21:02 +0100)]
dm thin: move bio_prison code to separate module
The bio prison code will be useful to other future DM targets so
move it to a separate module.
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Joe Thornber <ejt@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Mike Snitzer [Fri, 12 Oct 2012 20:02:10 +0000 (21:02 +0100)]
dm thin: prepare to separate bio_prison code
The bio prison code will be useful to share with future DM targets.
Prepare to move this code into a separate module, adding a dm prefix
to structures and functions that will be exported.
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Joe Thornber <ejt@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Mike Snitzer [Fri, 12 Oct 2012 20:02:07 +0000 (21:02 +0100)]
dm thin: support discard with non power of two block size
Support discards when the pool's block size is not a power of 2.
The block layer assumes discard_granularity is a power of 2 (in
blkdev_issue_discard), so we set this to the largest power of 2 that is
a divides into the number of sectors in each block, but never less than
DATA_DEV_BLOCK_SIZE_MIN_SECTORS.
This patch eliminates the "Discard support must be disabled when the
block size is not a power of 2" constraint that was imposed in commit
55f2b8b ("dm thin: support for non power of 2 pool blocksize"). That
commit was incomplete: using a block size that is not a power of 2
shouldn't mean disabling discard support on the device completely.
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Joe Thornber <ejt@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Chris Metcalf [Fri, 12 Oct 2012 19:38:54 +0000 (15:38 -0400)]
arch/tile: enable interrupts in do_work_pending()
All the called functions expect interrupts to be enabled, and
now one of them has started to warn about it, so make it correct.
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
Chris Metcalf [Fri, 12 Oct 2012 19:11:08 +0000 (15:11 -0400)]
Merge tag 'tags/disintegrate-tile-
20121009' into for-linus
UAPI Disintegration 2012-10-09
Ondrej Zary [Thu, 11 Oct 2012 22:51:41 +0000 (22:51 +0000)]
mcs7830: Fix link state detection
The device had an undocumented "feature": it can provide a sequence of
spurious link-down status data even if the link is up all the time.
A sequence of 10 was seen so update the link state only after the device
reports the same link state 20 times.
Signed-off-by: Ondrej Zary <linux@rainbow-software.org>
Reported-by: Michael Leun <lkml20120218@newton.leun.net>
Tested-by: Michael Leun <lkml20120218@newton.leun.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Amerigo Wang [Thu, 11 Oct 2012 21:06:17 +0000 (21:06 +0000)]
net: add doc for in4_pton()
It is not easy to use in4_pton() correctly without reading
its definition, so add some doc for it.
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Cong Wang <amwang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Amerigo Wang [Thu, 11 Oct 2012 21:06:16 +0000 (21:06 +0000)]
net: add doc for in6_pton()
It is not easy to use in6_pton() correctly without reading
its definition, so add some doc for it.
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Cong Wang <amwang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
stephen hemminger [Thu, 11 Oct 2012 12:51:28 +0000 (12:51 +0000)]
vti: fix sparse bit endian warnings
Use be32_to_cpu instead of htonl to keep sparse happy.
Signed-off-by: Stephen Hemminger <shemminger@vyatta.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Alexey Kuznetsov [Fri, 12 Oct 2012 04:34:17 +0000 (04:34 +0000)]
tcp: resets are misrouted
After commit
e2446eaa ("tcp_v4_send_reset: binding oif to iif in no
sock case").. tcp resets are always lost, when routing is asymmetric.
Yes, backing out that patch will result in misrouting of resets for
dead connections which used interface binding when were alive, but we
actually cannot do anything here. What's died that's died and correct
handling normal unbound connections is obviously a priority.
Comment to comment:
> This has few benefits:
> 1. tcp_v6_send_reset already did that.
It was done to route resets for IPv6 link local addresses. It was a
mistake to do so for global addresses. The patch fixes this as well.
Actually, the problem appears to be even more serious than guaranteed
loss of resets. As reported by Sergey Soloviev <sol@eqv.ru>, those
misrouted resets create a lot of arp traffic and huge amount of
unresolved arp entires putting down to knees NAT firewalls which use
asymmetric routing.
Signed-off-by: Alexey Kuznetsov <kuznet@ms2.inr.ac.ru>
Al Viro [Thu, 11 Oct 2012 03:12:01 +0000 (23:12 -0400)]
alpha: switch to saner kernel_execve() semantics
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Thu, 11 Oct 2012 02:23:29 +0000 (22:23 -0400)]
arm: switch to saner kernel_execve() semantics
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Thu, 11 Oct 2012 01:35:42 +0000 (21:35 -0400)]
x86, um: convert to saner kernel_execve() semantics
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Thu, 11 Oct 2012 01:28:25 +0000 (21:28 -0400)]
infrastructure for saner ret_from_kernel_thread semantics
* allow kernel_execve() leave the actual return to userland to
caller (selected by CONFIG_GENERIC_KERNEL_EXECVE). Callers
updated accordingly.
* architecture that does select GENERIC_KERNEL_EXECVE in its
Kconfig should have its ret_from_kernel_thread() do this:
call schedule_tail
call the callback left for it by copy_thread(); if it ever
returns, that's because it has just done successful kernel_execve()
jump to return from syscall
IOW, its only difference from ret_from_fork() is that it does call the
callback.
* such an architecture should also get rid of ret_from_kernel_execve()
and __ARCH_WANT_KERNEL_EXECVE
This is the last part of infrastructure patches in that area - from
that point on work on different architectures can live independently.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>