| Age | Commit message (Collapse) | Author |
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There is a risk that the variable will be used without being initialized.
This was largely found by using a static code analysis program called cppcheck.
Signed-off-by: Rickard Strandqvist <rickard_strandqvist@spectrumdigital.se>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
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This patch moves data allocated using kzalloc to managed data allocated
using devm_kzalloc and cleans now unnecessary kfrees in probe and remove
functions.
The following Coccinelle semantic patch was used for making the change:
@platform@
identifier p, probefn, removefn;
@@
struct platform_driver p = {
.probe = probefn,
.remove = removefn,
};
@prb@
identifier platform.probefn, pdev;
expression e, e1, e2;
@@
probefn(struct platform_device *pdev, ...) {
<+...
- e = kzalloc(e1, e2)
+ e = devm_kzalloc(&pdev->dev, e1, e2)
...
?-kfree(e);
...+>
}
@rem depends on prb@
identifier platform.removefn;
expression e;
@@
removefn(...) {
<...
- kfree(e);
...>
}
Signed-off-by: Himangi Saraogi <himangi774@gmail.com>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
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Signed-off-by: Ismael Luceno <ismael.luceno@gmail.com>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
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The Lenovo Yoga 2 11 always reports everything as blocked, causing userspace
to not even try to use the wlan / bluetooth even though they work fine.
Note this patch also removes the "else priv->rfk[i] = NULL;" bit of the
rfkill initialization, it is not necessary as the priv struct is allocated
with kzalloc.
Reported-and-tested-by: Vincent Gerris <vgerris@gmail.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
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The 'asus-nb-wmi' WAPF parameter must be set to 4, so the internal Wireless LAN device is operational.
Signed-off-by: Andreas Utterberg <andreas.utterberg@thundera.se>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
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Since there are now multiple HDMI attributes associated with the WMAX method,
create a sysfs group for them instead.
Signed-off-by: Mario Limonciello <mario_limonciello@dell.com>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
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Merge leftovers from Andrew Morton:
"A few leftovers: ocfs2, gcov, RTC"
* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
rtc: s5m: consolidate two device type switch statements
rtc: s5m: add support for S2MPS14 RTC
rtc: s5m: support different register layout
rtc: s5m: use shorter time of register update
rtc: s5m: remove undocumented time init on first boot
mfd/rtc: sec/s5m: rename SEC* symbols to S5M
gcov: add support for GCC 4.9
ocfs2/o2net: incorrect to terminate accepting connections loop upon rejecting an invalid one
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In probe the configuration of driver for different chipsets was done in
two switch (pdata->device_type) statements. Consolidate them into one
switch statement to increase code readability.
Additionally check the return value of regmap_irq_get_virq and exit
probe on error.
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Cc: Lee Jones <lee.jones@linaro.org>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: Sangbeom Kim <sbkim73@samsung.com>
Cc: Samuel Ortiz <sameo@linux.intel.com>
Cc: Marek Szyprowski <m.szyprowski@samsung.com>
Cc: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Add support for S2MPS14 to the rtc-s5m driver. Differences in S2MPS14
(in comparison to S5M8767):
- Layout of registers
- Lack of century support for time and alarms (7 registers used for
storing time/alarm)
- Two buffer control registers: WUDR and RUDR
- No register for enabling writing time
- RTC interrupts are reported in main PMIC I2C device
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Cc: Lee Jones <lee.jones@linaro.org>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: Sangbeom Kim <sbkim73@samsung.com>
Cc: Samuel Ortiz <sameo@linux.intel.com>
Cc: Marek Szyprowski <m.szyprowski@samsung.com>
Cc: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Prepare for adding support for S2MPS14 RTC device to the rtc-s5m driver:
1. Add a map of registers used by the driver which differ between
the chipsets (S5M876X and S2MPS14).
2. Move code of checking for alarm pending to separate function.
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Cc: Lee Jones <lee.jones@linaro.org>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: Sangbeom Kim <sbkim73@samsung.com>
Cc: Samuel Ortiz <sameo@linux.intel.com>
Cc: Marek Szyprowski <m.szyprowski@samsung.com>
Cc: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Set the time needed for updating alarm and time registers to 0.45 ms.
The default is 7.32 ms which is too long and leads to warnings when
setting alarm or time:
s5m-rtc: waiting for UDR update, reached max number of retries
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Cc: Lee Jones <lee.jones@linaro.org>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: Sangbeom Kim <sbkim73@samsung.com>
Cc: Samuel Ortiz <sameo@linux.intel.com>
Cc: Marek Szyprowski <m.szyprowski@samsung.com>
Cc: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Remove the code for initializing time if this is first boot.
The code for detecting first boot uses undocumented field RTC_TCON in
RTC_UDR_CON register. According to S5M8767's datasheet this field is
reserved. On S2MPS14 it is not documented at all.
On device first boot the registers will be initialized with reset value
(2000-01-01 00:00:00).
The code might work on S5M8763 but still this does not look like a task
for RTC driver.
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Cc: Lee Jones <lee.jones@linaro.org>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: Sangbeom Kim <sbkim73@samsung.com>
Cc: Samuel Ortiz <sameo@linux.intel.com>
Cc: Marek Szyprowski <m.szyprowski@samsung.com>
Cc: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Prepare for adding support for S2MPS14 RTC device to the rtc-s5m driver:
1. Rename SEC* symbols to S5M.
2. Add S5M prefix to some of defines which are different between S5M876X
and S2MPS14.
This is only a rename-like patch, new code is not added.
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Acked-by: Lee Jones <lee.jones@linaro.org>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: Sangbeom Kim <sbkim73@samsung.com>
Cc: Samuel Ortiz <sameo@linux.intel.com>
Cc: Marek Szyprowski <m.szyprowski@samsung.com>
Cc: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc
Pull MMC update from Chris Ball:
"MMC highlights for 3.16:
Core:
- support HS400 mode of eMMC 5.0, via DT bindings mmc-hs400-1_{2,8}v
- if card init at 3.3v doesn't work, try 1.8v and 1.2v too
Drivers:
- moxart: New driver for MOXA ART SoCs
- rtsx_usb_sdmmc: New driver for Realtek USB card readers
- sdhci: Large rework around IRQ/regulator handling, remove card_tasklet
- sdhci-pci-o2micro: Add SeaBird SeaEagle SD3 support
- sunxi: New driver for Allwinner sunxi SoCs
- usdhi6rol0: New driver for Renesas SD/SDIO controller"
* tag 'mmc-updates-for-3.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc: (95 commits)
mmc: sdhci-s3c: use mmc_of_parse and remove the card_tasklet
mmc: add a driver for the Renesas usdhi6rol0 SD/SDIO host controller
mmc: sdhci-of-esdhc: Fixup compile error
mmc: tegra: fix reporting of base clock frequency
mmc: tegra: disable UHS modes
mmc: sdhci-dove: use mmc_of_parse() and remove card_tasklet CD handler
MAINTAINERS: mmc: Add path to git tree
mmc: dove: fix missing MACH_DOVE dependency
mmc: sdhci: SD tuning is broken for some controllers
mmc: sdhci-esdhc-imx: fix mmc ddr mode regression issue
mmc: sdhci-pci-o2micro: Add SeaBird SeaEagle SD3 support
mmc: omap_hsmmc: split omap-dma header file
mmc: omap_hsmmc: fix cmd23 multiblock read/write
mmc: omap_hsmmc: use devm_ioremap_resource
mmc: omap_hsmmc: use devm_request_threaded_irq
mmc: omap_hsmmc: use devm_request_irq
mmc: omap_hsmmc: use devm_clk_get
mmc: sunxi: Add driver for SD/MMC hosts found on Allwinner sunxi SoCs
mmc: wmt-sdmmc: Use GFP_KERNEL instead of hard-coded value
mmc: omap: Use DIV_ROUND_UP instead of open coded
...
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cpufreq-cpu0 uses thermal framework to register a cooling device, but doesn't
depend on it as there are dummy calls provided by thermal layer when
CONFIG_THERMAL=n. And when these calls fail, the driver is still usable.
Similar explanation is valid for regulators as well. We do have dummy calls
available for regulator APIs and the driver can work even when those calls
fail.
So, we don't really need to mention thermal and regulators as a dependency for
cpufreq-cpu0 in Kconfig as platforms without support for thermal/regulator can
also use this driver. Remove this dependency.
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Tegra's driver got updated a bit (00917dd cpufreq: Tegra: implement intermediate
frequency callbacks) and implements new 'intermediate freq' infrastructure of
core. Above commit updated comments about when to call
clk_prepare_enable(pll_x_clk) and Doug wasn't satisfied with those comments and
said this:
> The "Though when target-freq is intermediate freq, we don't need to
> take this reference." makes me think that this function is actually
> called when target-freq is intermediate freq. I don't think it is,
> right?
For better clarity just make that comment more explicit about when we call
tegra_target_intermediate().
Reviewed-by: Stephen Warren <swarren@nvidia.com>
Reported-and-reviewed-by: Doug Anderson <dianders@chromium.org>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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We check the CPU ID during driver init. There is no need
to do it again per logical CPU initialization.
So, remove the duplicate check.
Signed-off-by: Stratos Karafotis <stratosk@semaphore.gr>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Dirk Brandewie <dirk.j.brandewie@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Add initial Intel MID watchdog driver support.
This driver is an initial implementation of generic Intel MID watchdog
driver. Currently it supports Intel Merrifield platform.
Signed-off-by: Eric Ernst <eric.ernst@intel.com>
Signed-off-by: David Cohen <david.a.cohen@linux.intel.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
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Implementation of ->set_timeout() is supposed to set 'timeout' field of 'struct
watchdog_device' passed to it. sp805 was rather setting this in a local
variable. Fix it.
Reported-by: Arun Ramamurthy <arun.ramamurthy@broadcom.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Cc: <stable@vger.kernel.org> # 2.6.36+
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Basically, this patch does the following:
1. Move the codes of parsing boot parameters from setup-common.c
to driver. In this way, code reader can know directly that
there are boot parameters that can change the timeout.
2. Make boot parameter 'booke_wdt_period' effective.
currently, when driver is loaded, default timeout is always
being used in stead of booke_wdt_period.
3. Wrap up the watchdog timeout in device struct and clean up
unnecessary codes.
Signed-off-by: Tang Yuantian <yuantian.tang@freescale.com>
Acked-by: Scott Wood <scottwood@freescale.com>
Reviewed-by: Li Yang <leoli@freescale.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
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All three iop variants we support in Linux (iop32x, iop33x and
iop13xx) seem to have support for the watchdog hardware, but this
driver fails to build for the first two of these because it
uses the IOP13XX_WDTCR_IB_RESET macro that is only defined for
iop13xx.
This clarifies the dependency in Kconfig to avoid randconfig
build errors. It is unlikely that anyone will ever miss support
for this driver on the ancient iop3xx platforms, so we don't
need to bother trying to fix it properly.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Cc: linux-watchdog@vger.kernel.org
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Since both chips are now supported by the w83627hf watchdog driver,
the chip specific drivers are no longer needed and can be removed.
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
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Add early_disable module parameter to match functionality previously
available in the w83697hf_wdt driver.
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
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This commit adds support for the Armada 375 and Armada 380 SoCs.
This SoC variant has a second RSTOUT register, in addition to the already
existent, which is shared with the system-controller. To handle this RSTOUT,
we introduce a new MMIO register 'rstout_mask' to be required on
'armada-{375,380}-watchdog' new compatible string.
Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Jason Cooper <jason@lakedaemon.net>
Tested-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Tested-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
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In order to support other SoCs, it's needed to have a different enabled()
implementation for each SoC. This commit adds no functionality, and it
consists of preparation work.
Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Jason Cooper <jason@lakedaemon.net>
Tested-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Tested-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
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In order to support other SoCs, it's needed to have a different stop()
implementation for each SoC. This commit adds no functionality, and it
consists of preparation work.
Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Jason Cooper <jason@lakedaemon.net>
Tested-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Tested-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
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The RSTOUT register on the Armada 370 SoC variant is a dedicated register
(not shared across orthogonal subsystems) and so it's not needed to write
it atomically.
Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Jason Cooper <jason@lakedaemon.net>
Tested-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Tested-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
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Separate the RSTOUT register mapping for the different compatible strings
supported by the driver. This allows to use devm_ioremap on SoC variants that
share the RSTOUT register, and devm_ioremap_resource (which requests the MMIO
region) on SoCs that have a dedicated RSTOUT register.
Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Jason Cooper <jason@lakedaemon.net>
Tested-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Tested-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
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Follow-up patches will extend the registers ioremap and request
to handle SoC-specific quirks on the RSTOUT register. Therefore,
in order to keep the code readable, this commit introduces a special
function for this.
Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Jason Cooper <jason@lakedaemon.net>
Tested-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
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Make of_device_id array const, because all OF functions
handle it as const.
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Reviewed-by: Michal Simek <monstr@monstr.eu>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
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Convert the imx2_wdt driver to the new watchdog core api.
Signed-off-by: Anatolij Gustschin <agust@denx.de>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Cc: Wolfram Sang <wsa@the-dreams.de>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
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This watchdog driver will be working on IMX2+, Vybrid, LS1, LS2+
platforms, and will be in different endianness mode in those SoCs:
SoCs CPU endian mode WDT endian mode
------------------------------------------------
IMX2+ LE LE
Vybird LE LE
LS1 LE BE
LS2 LE LE
Other possible SoCs:
SoCs CPU endian mode WDT endian mode
------------------------------------------------
Soc1 BE BE
Soc2 BE LE
And also the watchdog's registers will be 32-bits for some versions,
and though it is 16-bits in IMX2+, Vybird and LS+.
Using the regmap APIs, could be more easy to support different
endianness and also more easy to support 32-bits version...
Signed-off-by: Xiubo Li <Li.Xiubo@freescale.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
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Signed-off-by: Xiubo Li <Li.Xiubo@freescale.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
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Replace clk_enable() and clk_disable() calls with
clk_prepare_enable() and clk_disable_unprepare()
to get ready for the migration to the common clock
framework.
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
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On some AR934x based systems, where the frequency of
the AHB bus is relatively high, the built-in watchdog
causes a spurious restart when it gets enabled.
The possible cause of these restarts is that the timeout
value written into the TIMER register does not reaches
the hardware in time.
Add an explicit delay into the ath79_wdt_enable function
to avoid the spurious restarts.
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Cc: <stable@vger.kernel.org>
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This patch removes platform_set_drvdata() which is not used in
the driver.
Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
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with the watchdog
Use the prescaler index, rather than its value, to configure the watchdog.
This will prevent a mismatch with the prescaler used to calculate the cycles.
Signed-off-by: Per Gundberg <per.gundberg@icomera.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Michael Brunner <michael.brunner@kontron.com>
Tested-by: Michael Brunner <michael.brunner@kontron.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Cc: stable <stable@vger.kernel.org>
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When compiling sunxi_defconfig while using C=2, the following error
causes the compilation to fail:
drivers/watchdog/sunxi_wdt.c:60:15: error: constant 0b0001 is not a valid number
Fix it by using hex notation instead of the non-standard binary one
Signed-off-by: Emilio Lopez <emilio@elopez.com.ar>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
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Use del_timer_sync to ensure that the timer is stopped on all CPUs before
the driver exits.
This change was suggested by Thomas Gleixner.
The semantic patch that makes this change is as follows:
(http://coccinelle.lip6.fr/)
// <smpl>
@r@
identifier i,t,ex;
@@
struct t i = { .remove = ex, };
@@
identifier r.ex;
@@
ex(...) {
<...
- del_timer
+ del_timer_sync
(...)
...>
}
// </smpl>
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
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According to its Kconfig help text, the sbc8360 watchdog driver is
only used on the Axiomtek SBC8360 single-board computer. This piece of
hardware is 32-bit x86 so the driver is useless beyond X86_32.
Signed-off-by: Jean Delvare <jdelvare@suse.de>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
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Move EXPORT_SYMBOL so it immediately follows the function or variable.
No functional change.
[bhelgaas: squash similar changes, fix hotplug, probe, rom, search, too]
Signed-off-by: Ryan Desfosses <ryan@desfo.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband
Pull main InfiniBand/RDMA updates from Roland Dreier:
- add iWARP port mapper to avoid conflicts between RDMA and normal
stack TCP connections.
- fixes for i386 / x86-64 structure padding differences (ABI
compatibility for 32-on-64) from Yann Droneaud.
- a pile of SRP initiator fixes from Bart Van Assche.
- fixes for a writeback / memory allocation deadlock with NFS over
IPoIB connected mode from Jiri Kosina.
- the usual fixes and cleanups to mlx4, mlx5, cxgb4 and other low-level
drivers.
* tag 'rdma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband: (61 commits)
RDMA/cxgb4: Add support for iWARP Port Mapper user space service
RDMA/nes: Add support for iWARP Port Mapper user space service
RDMA/core: Add support for iWARP Port Mapper user space service
IB/mlx4: Fix gfp passing in create_qp_common()
IB/umad: Fix use-after-free on close
IB/core: Fix kobject leak on device register error flow
RDMA/cxgb4: add missing padding at end of struct c4iw_alloc_ucontext_resp
mlx4_core: Fix GFP flags parameters to be gfp_t
IB/core: Fix port kobject deletion during error flow
IB/core: Remove unneeded kobject_get/put calls
IB/core: Fix sparse warnings about redeclared functions
IB/mad: Fix sparse warning about gfp_t use
IB/mlx4: Implement IB_QP_CREATE_USE_GFP_NOIO
IB: Add a QP creation flag to use GFP_NOIO allocations
IB: Return error for unsupported QP creation flags
IB: Allow build of hw/ and ulp/ subdirectories independently
mlx4_core: Move handling of MLX4_QP_ST_MLX to proper switch statement
RDMA/cxgb4: Add missing padding at end of struct c4iw_create_cq_resp
IB/srp: Avoid problems if a header uses pr_fmt
IB/umad: Fix error handling
...
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Pull slave-dmaengine updates from Vinod Koul:
- new Xilixn VDMA driver from Srikanth
- bunch of updates for edma driver by Thomas, Joel and Peter
- fixes and updates on dw, ste_dma, freescale, mpc512x, sudmac etc
* 'for-linus' of git://git.infradead.org/users/vkoul/slave-dma: (45 commits)
dmaengine: sh: don't use dynamic static allocation
dmaengine: sh: fix print specifier warnings
dmaengine: sh: make shdma_prep_dma_cyclic static
dmaengine: Kconfig: Update MXS_DMA help text to include MX6Q/MX6DL
of: dma: Grammar s/requests/request/, s/used required/required/
dmaengine: shdma: Enable driver compilation with COMPILE_TEST
dmaengine: rcar-hpbdma: Include linux/err.h
dmaengine: sudmac: Include linux/err.h
dmaengine: sudmac: Keep #include sorted alphabetically
dmaengine: shdmac: Include linux/err.h
dmaengine: shdmac: Keep #include sorted alphabetically
dmaengine: s3c24xx-dma: Add cyclic transfer support
dmaengine: s3c24xx-dma: Process whole SG chain
dmaengine: imx: correct sdmac->status for cyclic dma tx
dmaengine: pch: fix compilation for alpha target
dmaengine: dw: check return code of dma_async_device_register()
dmaengine: dw: fix regression in dw_probe() function
dmaengine: dw: enable clock before access
dma: pch_dma: Fix Kconfig dependencies
dmaengine: mpc512x: add support for peripheral transfers
...
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'mlx5', 'noio', 'ocrdma', 'qib', 'srp' and 'usnic' into for-next
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Based on original work by Vipul Pandya.
Signed-off-by: Steve Wise <swise@opengridcomputing.com>
[ Fix htons -> ntohs to make sparse happy. - Roland ]
Signed-off-by: Roland Dreier <roland@purestorage.com>
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Signed-off-by: Tatyana Nikolova <tatyana.e.nikolova@intel.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
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This patch adds iWARP Port Mapper (IWPM) Version 2 support. The iWARP
Port Mapper implementation is based on the port mapper specification
section in the Sockets Direct Protocol paper -
http://www.rdmaconsortium.org/home/draft-pinkerton-iwarp-sdp-v1.0.pdf
Existing iWARP RDMA providers use the same IP address as the native
TCP/IP stack when creating RDMA connections. They need a mechanism to
claim the TCP ports used for RDMA connections to prevent TCP port
collisions when other host applications use TCP ports. The iWARP Port
Mapper provides a standard mechanism to accomplish this. Without this
service it is possible for RDMA application to bind/listen on the same
port which is already being used by native TCP host application. If
that happens the incoming TCP connection data can be passed to the
RDMA stack with error.
The iWARP Port Mapper solution doesn't contain any changes to the
existing network stack in the kernel space. All the changes are
contained with the infiniband tree and also in user space.
The iWARP Port Mapper service is implemented as a user space daemon
process. Source for the IWPM service is located at
http://git.openfabrics.org/git?p=~tnikolova/libiwpm-1.0.0/.git;a=summary
The iWARP driver (port mapper client) sends to the IWPM service the
local IP address and TCP port it has received from the RDMA
application, when starting a connection. The IWPM service performs a
socket bind from user space to get an available TCP port, called a
mapped port, and communicates it back to the client. In that sense,
the IWPM service is used to map the TCP port, which the RDMA
application uses to any port available from the host TCP port
space. The mapped ports are used in iWARP RDMA connections to avoid
collisions with native TCP stack which is aware that these ports are
taken. When an RDMA connection using a mapped port is terminated, the
client notifies the IWPM service, which then releases the TCP port.
The message exchange between the IWPM service and the iWARP drivers
(between user space and kernel space) is implemented using netlink
sockets.
1) Netlink interface functions are added: ibnl_unicast() and
ibnl_mulitcast() for sending netlink messages to user space
2) The signature of the existing ibnl_put_msg() is changed to be more
generic
3) Two netlink clients are added: RDMA_NL_NES, RDMA_NL_C4IW
corresponding to the two iWarp drivers - nes and cxgb4 which use
the IWPM service
4) Enums are added to enumerate the attributes in the netlink
messages, which are exchanged between the user space IWPM service
and the iWARP drivers
Signed-off-by: Tatyana Nikolova <tatyana.e.nikolova@intel.com>
Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Reviewed-by: PJ Waskiewicz <pj.waskiewicz@solidfire.com>
[ Fold in range checking fixes and nlh_next removal as suggested by Dan
Carpenter and Steve Wise. Fix sparse endianness in hash. - Roland ]
Signed-off-by: Roland Dreier <roland@purestorage.com>
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Pull UBIFS updates from Artem Bityutskiy:
"This contains several UBIFS fixes. One of them fixes a race condition
between the mmap page fault path and fsync. Another just removes a
bogus assertion from the UBIFS memory shrinker.
UBIFS also started honoring the MS_SILENT mount flag, so now it won't
print many I/O errors when user-space just tries to probe for the FS.
Rest of the changes are rather minor UBI/UBIFS fixes, improvements,
and clean-ups"
* tag 'upstream-3.16-rc1-v2' of git://git.infradead.org/linux-ubifs:
UBIFS: Add an assertion for clean_zn_cnt
UBIFS: respect MS_SILENT mount flag
UBIFS: Remove incorrect assertion in shrink_tnc()
UBIFS: fix debugging check
UBIFS: add missing ui pointer in debugging code
UBI: block: Fix error path on alloc_workqueue failure
UBIFS: Fix dump messages in ubifs_dump_lprops
UBI: fix rb_tree node comparison in add_map
UBIFS: Remove unused variables in ubifs_budget_space
UBI: weaken the 'exclusive' constraint when opening volumes to rename
UBIFS: fix an mmap and fsync race condition
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dyn_callback_lock is being taken from IRQ context through hid_irq_in() ->
hid_input_report() -> sensor_hub_raw_event() -> sensor_hub_get_callback(),
therefore anyone else acquiring it needs to disable IRQs to disable deadlocks.
Reported-by: Alexander Holler <holler@ahsoftware.de>
Tested-by: Alexander Holler <holler@ahsoftware.de>
Reported-by: Reyad Attiyat <reyad.attiyat@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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airq_iv_(alloc|free) is called by some users with interrupts enabled
and by some with interrupts disabled which leads to the following
lockdep warning:
[ INFO: possible irq lock inversion dependency detected ]
3.14.0-15249-gbf29b7b-dirty #25 Not tainted
---------------------------------------------------------
insmod/2108 just changed the state of lock:
(&(&iv->lock)->rlock){+.....}, at: [<000000000046ee3e>] airq_iv_alloc+0x62/0x228
but this lock was taken by another, HARDIRQ-READ-safe lock in the past:
(&info->lock){.-.-..}
and interrupts could create inverse lock ordering between them.
other info that might help us debug this:
Possible interrupt unsafe locking scenario:
CPU0 CPU1
---- ----
lock(&(&iv->lock)->rlock);
local_irq_disable();
lock(&info->lock);
lock(&(&iv->lock)->rlock);
<Interrupt>
lock(&info->lock);
*** DEADLOCK ***
Although this is a false alarm (since each airq user consistently
calls these functions from the same context) fix this by ensuring
that interrupts are disabled when the airq lock is held.
Reported-by: Frank Blaschka <frank.blaschka@de.ibm.com>
Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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