Namjae Jeon [Tue, 26 Mar 2013 23:25:48 +0000 (10:25 +1100)]
fat: introduce 2 new values for the -o nfs mount option
This patchset eliminates the client side ESTALE errors when a FAT
partition exported over NFS has its dentries evicted from the cache. The
idea is to find the on-disk location_'i_pos' of the dirent of the inode
that has been evicted and use it to rebuild the inode.
This patch:
Provide two possible values 'stale_rw' and 'nostale_ro' for the -o nfs
mount option.The first one allows all file operations but does not reduce
ESTALE errors on memory constrained systems. The second one eliminates
ESTALE errors but mounts the filesystem as read-only. Not specifying a
value defaults to 'stale_rw'.
Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com> Signed-off-by: Ravishankar N <ravi.n1@samsung.com> Signed-off-by: Amit Sahrawat <a.sahrawat@samsung.com> Acked-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
fs/hfsplus/bfind.c: In function 'hfs_find_1st_rec_by_cnid':
(1) include/uapi/linux/swab.h:60:2: warning: 'search_cnid' may be used uninitialized in this function [-Wmaybe-uninitialized]
(2) include/uapi/linux/swab.h:60:2: warning: 'cur_cnid' may be used uninitialized in this function [-Wmaybe-uninitialized]
Signed-off-by: Vyacheslav Dubeyko <slava@dubeyko.com> Cc: Christoph Hellwig <hch@lst.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Sachin Kamat [Tue, 26 Mar 2013 23:25:46 +0000 (10:25 +1100)]
drivers/rtc/rtc-tps65910.c: fix incorrect return value on error
'ret' was not initialized to correct error value before returning. Since
'irq' is also being tested for 0, we cannot return irq itself as it means
function is success even though we are returning before completing the
probe.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Acked-by: Venu Byravarasu <vbyravarasu@nvidia.com> Cc: Chiwoong Byun <woong.byun@samsung.com> Cc: Jonghwa Lee <jonghwa3.lee@samsung.com> Cc: Laxman dewangan <ldewangan@nvidia.com> Cc: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Sachin Kamat [Tue, 26 Mar 2013 23:25:46 +0000 (10:25 +1100)]
drivers/rtc/rtc-tps6586x.c: remove incorrect use of rtc_device_unregister
Device managed functions do not need explicit freeing/unregistering.
Moreover in this case it was done using non-device managed function which
is incorrect. Hence remove it.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Cc: Laxman dewangan <ldewangan@nvidia.com> Cc: Chiwoong Byun <woong.byun@samsung.com> Cc: Jonghwa Lee <jonghwa3.lee@samsung.com> Cc: Venu Byravarasu <vbyravarasu@nvidia.com> Cc: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Jingoo Han [Tue, 26 Mar 2013 23:25:46 +0000 (10:25 +1100)]
drivers/rtc/rtc-88pm80x.c: add CONFIG_PM_SLEEP to suspend/resume functions
Add CONFIG_PM_SLEEP to suspend/resume functions to fix the following build
warning when CONFIG_PM_SLEEP is not selected. This is because sleep PM
callbacks defined by SIMPLE_DEV_PM_OPS are only used when the
CONFIG_PM_SLEEP is enabled.
drivers/rtc/rtc-88pm80x.c:238:12: warning: 'pm80x_rtc_suspend' defined but not used [-Wunused-function]
drivers/rtc/rtc-88pm80x.c:243:12: warning: 'pm80x_rtc_resume' defined but not used [-Wunused-function]
Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Jingoo Han [Tue, 26 Mar 2013 23:25:46 +0000 (10:25 +1100)]
drivers/rtc/rtc-ds1374.c: add CONFIG_PM_SLEEP to suspend/resume functions
Add CONFIG_PM_SLEEP to suspend/resume functions to fix the following build
warning when CONFIG_PM_SLEEP is not selected. This is because sleep PM
callbacks defined by SIMPLE_DEV_PM_OPS are only used when the
CONFIG_PM_SLEEP is enabled.
drivers/rtc/rtc-ds1374.c:413:12: warning: 'ds1374_suspend' defined but not used [-Wunused-function]
drivers/rtc/rtc-ds1374.c:422:12: warning: 'ds1374_resume' defined but not used [-Wunused-function]
Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Jingoo Han [Tue, 26 Mar 2013 23:25:44 +0000 (10:25 +1100)]
rtc: rtc-sh: switch to using SIMPLE_DEV_PM_OPS
Switch to using the SIMPLE_DEV_PM_OPS macro to declare the driver's
pm_ops. It reduces code size. Also, CONFIG_PM_SLEEP is added to prevent
build warning when CONFIG_PM_SLEEP is not selected.
Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Jingoo Han [Tue, 26 Mar 2013 23:25:33 +0000 (10:25 +1100)]
drivers/rtc/rtc-s3c.c: convert s3c_rtc to dev_pm_ops
Instead of using legacy suspend/resume methods, using newer dev_pm_ops
structure allows better control over power management. Also, 'wake_en'
variable is moved, because it is only used when CONFIG_PM_SLEEP is
enabled.
Signed-off-by: Jingoo Han <jg1.han@samsung.com> Cc: Grant Likely <grant.likely@secretlab.ca> Cc: Rob Herring <rob.herring@calxeda.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Bertrand Achard [Tue, 26 Mar 2013 23:25:32 +0000 (10:25 +1100)]
drivers/rtc/rtc-ds1307.c: long block operations bugfix
The rtc-ds1307 driver does not properly handle block operations bigger
than 32 bytes in either of the two modes supported (SMbus native, or
emulated if not supported by the SMbus platform driver).
It also does not properly handle userland-supplied input (block operation
length) through sysfs and may suffer a type of buffer overrun.
The driver has been modified with proper input validation, buffer sizes,
and now splits block transfers bigger than 32 bytes into separate
transfers.
Explanation : Buffer size allocated is I2C_SMBUS_BLOCK_MAX which equals to
32 as per the SMbus spec. Reads and write may be up to 56 bytes (to the
NVRAM). This patch allocated a 255 byte buffer, the maximum allowable
(address is an u8). It's not only a buffer problem, SMbus only supports
up to 32 bytes transfer at once, so it's needed to split bigger transfers.
Patch successfully tested on 3.2.27; cleanly applies on 3.7-rc4.
[akpm@linux-foundation.org: rework code to avoid 80-column overflows] Signed-off-by: Bertrand Achard <ba@cykian.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Laxman Dewangan [Tue, 26 Mar 2013 23:25:32 +0000 (10:25 +1100)]
drivers/rtc/rtc-tegra.c: fix build warning
Fix the below build warning:
drivers/rtc/rtc-tegra.c: In function 'tegra_rtc_probe':
drivers/rtc/rtc-tegra.c:353:33: warning: passing argument 1 of 'devm_rtc_device_register' from incompatible pointer type [enabled by default]
include/linux/rtc.h:136:27: note: expected 'struct device *' but argument is of type 'const char *'
drivers/rtc/rtc-tegra.c:353:33: warning: passing argument 2 of 'devm_rtc_device_register' from incompatible pointer type [enabled by default]
include/linux/rtc.h:136:27: note: expected 'const char *' but argument is of type 'struct device *'
Laxman Dewangan [Tue, 26 Mar 2013 23:25:32 +0000 (10:25 +1100)]
drivers/rtc/rtc-tegra.c: use managed rtc_device_register()
Use devm_rtc_device_register() for registering RTC device. This will
reduce the code for unregistering RTC device in cleanup path and remove
the implementation of remove callback of platform driver.
Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com> Reviewed-by: Thierry Reding <thierry.reding@avionic-design.de> Reviewed-by: Stephen Warren <swarren@nvidia.com> Cc: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Laxman Dewangan [Tue, 26 Mar 2013 23:25:31 +0000 (10:25 +1100)]
drivers/rtc/rtc-tegra.c: use struct dev_pm_ops for power management
Make the Tegra RTC controller driver define its PM callbacks through a
struct dev_pm_ops object rather than by using legacy PM hooks in struct
platform_driver.
Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com> Reviewed-by: Thierry Reding <thierry.reding@avionic-design.de> Reviewed-by: Stephen Warren <swarren@nvidia.com> Cc: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Laxman Dewangan [Tue, 26 Mar 2013 23:25:31 +0000 (10:25 +1100)]
drivers/rtc/rtc-tegra.c: protect suspend/resume callbacks with CONFIG_PM_SLEEP
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. Hence protecting sleep callbacks with
CONFIG_PM_SLEEP.
Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com> Reviewed-by: Thierry Reding <thierry.reding@avionic-design.de> Reviewed-by: Stephen Warren <swarren@nvidia.com> Cc: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
The "fix set time sync time issue" adds calls to udelay(), but
doesn't add the include file. End result is build breakage:
drivers/rtc/rtc-pxa.c: In function 'pxa_rtc_set_time':
drivers/rtc/rtc-pxa.c:267:2: error: implicit declaration of function 'udelay' [-Werror=implicit-function-declaration]
Signed-off-by: Olof Johansson <olof@lixom.net> Cc: Leo Song <liangs@marvell.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Devendra Naga [Tue, 26 Mar 2013 23:25:30 +0000 (10:25 +1100)]
below is the warning reported with the gcc (gcc (GCC) 4.7.2 20121109 (Red
Hat 4.7.2-8))
with make W=1
drivers/rtc/rtc-ds1286.c: In function `ds1286_read_alarm':
drivers/rtc/rtc-ds1286.c:273:16: warning: variable `cmd' set but not used [-Wunused-but-set-variable]
fixed by removing the variable
Signed-off-by: Devendra Naga <devendra.aaru@gmail.com> Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Cc: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
projects / karo-tx-linux.git / log