16 Jun, 2009
25 commits
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request_firmware_nowait declares it can be called in non-sleep contexts,
but kthead_run called by request_firmware_nowait may sleep. So fix its
documentation and comment to make callers clear about it.Signed-off-by: Ming Lei
Signed-off-by: Greg Kroah-Hartman -
With SAMPLE_KOBJECT=y, it isn't even linked into the kernel image.
Signed-off-by: Michal Marek
Signed-off-by: Greg Kroah-Hartman -
A patch series to make .shutdown execute asynchronously. Some drivers's
shutdown can take a lot of time. The patches can help save some shutdown
time. The patches use Arjan's async API.This patch:
synchronize all tasks submitted by .shutdown
Signed-off-by: Shaohua Li
Cc: Arjan van de Ven
Cc: Dmitry Torokhov
Cc: James Bottomley
Signed-off-by: Andrew Morton
Signed-off-by: Greg Kroah-Hartman -
Fix an error in debugfs_create_blob's docbook description
It cannot actually be used to write a binary blob.
Signed-off-by: Jonathan Corbet
-
sysdev_class_register should check the kobject_set_name return value.
Add the return value checking code.
Signed-off-by: Dave Young
Signed-off-by: Greg Kroah-Hartman -
kset_create should check the kobject_set_name return value.
Add the return value checking code.
Signed-off-by: Dave Young
Signed-off-by: Greg Kroah-Hartman -
We are looking for matching drivers, not devices.
Signed-off-by: Dmitry Torokhov
Signed-off-by: Greg Kroah-Hartman -
debugfs: dont stop on first failed recursive delete
While running a while loop of removing a module that removes a debugfs
directory with debugfs_remove_recursive, and at the same time doing a
while loop of cat of a file in that directory, I would hit a point where
somehow the cat of the file caused the remove to fail.The result is that other files did not get removed when the module
was removed. I simple read of one of those file can oops the kernel
because the operations to the file no longer exist (removed by module).The funny thing is that the file being cat'ed was removed. It was
the siblings that were not. I see in the code to debugfs_remove_recursive
there's a test that checks if the child fails to bail out of the loop
to prevent an infinite loop.What this patch does is to still try any siblings in that directory.
If all the siblings fail, or there are no more siblings, then we exit
the loop.This fixes the above symptom, but...
This is no full proof. It makes the debugfs_remove_recursive a bit more
robust, but it does not explain why the one file failed. There may
be some kind of delay deletion that makes the debugfs think it did
not succeed. So this patch is more of a fix for the symptom but not
the disease.This patch still makes the debugfs_remove_recursive more robust and
until I can find out why the bug exists, this patch will keep
the kernel from oopsing in most cases. Even after the cause is found
I think this change can stand on its own and should be kept.[ Impact: prevent kernel oops on module unload and reading debugfs files ]
Signed-off-by: Steven Rostedt
Signed-off-by: Greg Kroah-Hartman -
This converts resource and IRQ getbyname functions for the platform
bus to use const char *, I ran into compiler moanings when I tried
using a const char * for looking up a certain resource.Signed-off-by: Linus Walleij
Signed-off-by: Greg Kroah-Hartman -
This patch adds a new bus notifier event which is emitted _after_ a
device is removed from its driver. This event will be used by the
dma-api debug code to check if a driver has released all dma allocations
for that device.Signed-off-by: Joerg Roedel
Signed-off-by: Greg Kroah-Hartman -
against v2.6.30-rc3-next tree.
Signed-off-by: Ming Lei
Signed-off-by: Greg Kroah-Hartman -
There is the possiblity of a memory leak if a page is allocated and if
sysfs_getlink() fails in the sysfs_follow_link.Signed-off-by: Armin Kuster
Signed-off-by: Greg Kroah-Hartman -
Add a blurb to the driver-model documentation about how (not) to add
extra attributes to a struct device at driver probe time.Signed-off-by: Grant Likely
Cc: Kay Sievers
Signed-off-by: Greg Kroah-Hartman -
During bootup performance tracing we see repeated occurrences of
/sys/kernel/uid/* events for the same uid, leading to a,
in this case, rather pointless userspace processing for the
same uid over and over.This is usually caused by tools which change their uid to "nobody",
to run without privileges to read data supplied by untrusted users.This change delays the execution of the (already existing) scheduled
work, to cleanup the uid after one second, so the allocated and announced
uid can possibly be re-used by another process.This is the current behavior, where almost every invocation of a
binary, which changes the uid, creates two events:
$ read START < /sys/kernel/uevent_seqnum; \
for i in `seq 100`; do su --shell=/bin/true bin; done; \
read END < /sys/kernel/uevent_seqnum; \
echo $(($END - $START))
178With the delayed cleanup, we get only two events, and userspace finishes
a bit faster too:
$ read START < /sys/kernel/uevent_seqnum; \
for i in `seq 100`; do su --shell=/bin/true bin; done; \
read END < /sys/kernel/uevent_seqnum; \
echo $(($END - $START))
1Acked-by: Dhaval Giani
Signed-off-by: Kay Sievers
Signed-off-by: Greg Kroah-Hartman -
All recent distros depend on the non-deprecated sysfs layout, so
change the default value of the option to reflect that.Signed-off-by: Kay Sievers
Signed-off-by: Greg Kroah-Hartman -
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6:
[IA64] fix compile error in arch/ia64/mm/extable.c -
…kernel/git/tip/linux-2.6-tip
* 'timers-for-linus-migration' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
timers: Logic to move non pinned timers
timers: /proc/sys sysctl hook to enable timer migration
timers: Identifying the existing pinned timers
timers: Framework for identifying pinned timers
timers: allow deferrable timers for intervals tv2-tv5 to be deferredFix up conflicts in kernel/sched.c and kernel/timer.c manually
-
…x/kernel/git/tip/linux-2.6-tip
* 'timers-for-linus-clockevents' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
clockevent: export register_device and delta2ns
clockevents: tick_broadcast_device can become static -
…x/kernel/git/tip/linux-2.6-tip
* 'timers-for-linus-clocksource' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
clocksource: prevent selection of low resolution clocksourse also for nohz=on
clocksource: sanity check sysfs clocksource changes -
…/git/tip/linux-2.6-tip
* 'timers-for-linus-ntp' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
ntp: fix comment typos
ntp: adjust SHIFT_PLL to improve NTP convergence -
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6: (1244 commits)
pkt_sched: Rename PSCHED_US2NS and PSCHED_NS2US
ipv4: Fix fib_trie rebalancing
Bluetooth: Fix issue with uninitialized nsh.type in DTL-1 driver
Bluetooth: Fix Kconfig issue with RFKILL integration
PIM-SM: namespace changes
ipv4: update ARPD help text
net: use a deferred timer in rt_check_expire
ieee802154: fix kconfig bool/tristate muckup
bonding: initialization rework
bonding: use is_zero_ether_addr
bonding: network device names are case sensative
bonding: elminate bad refcount code
bonding: fix style issues
bonding: fix destructor
bonding: remove bonding read/write semaphore
bonding: initialize before registration
bonding: bond_create always called with default parameters
x_tables: Convert printk to pr_err
netfilter: conntrack: optional reliable conntrack event delivery
list_nulls: add hlist_nulls_add_head and hlist_nulls_del
... -
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (103 commits)
powerpc: Fix bug in move of altivec code to vector.S
powerpc: Add support for swiotlb on 32-bit
powerpc/spufs: Remove unused error path
powerpc: Fix warning when printing a resource_size_t
powerpc/xmon: Remove unused variable in xmon.c
powerpc/pseries: Fix warnings when printing resource_size_t
powerpc: Shield code specific to 64-bit server processors
powerpc: Separate PACA fields for server CPUs
powerpc: Split exception handling out of head_64.S
powerpc: Introduce CONFIG_PPC_BOOK3S
powerpc: Move VMX and VSX asm code to vector.S
powerpc: Set init_bootmem_done on NUMA platforms as well
powerpc/mm: Fix a AB->BA deadlock scenario with nohash MMU context lock
powerpc/mm: Fix some SMP issues with MMU context handling
powerpc: Add PTRACE_SINGLEBLOCK support
fbdev: Add PLB support and cleanup DCR in xilinxfb driver.
powerpc/virtex: Add ml510 reference design device tree
powerpc/virtex: Add Xilinx ML510 reference design support
powerpc/virtex: refactor intc driver and add support for i8259 cascading
powerpc/virtex: Add support for Xilinx PCI host bridge
... -
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lrg/voltage-2.6:
regulator/max1586: fix V3 gain calculation integer overflow
regulator/max1586: support increased V3 voltage range
regulator: lp3971 - fix driver link error when built-in.
LP3971 PMIC regulator driver (updated and combined version)
regulator: remove driver_data direct access of struct device
regulator: Set MODULE_ALIAS for regulator drivers
regulator: Support list_voltage for fixed voltage regulator
regulator: Move regulator drivers to subsys_initcall()
regulator: build fix for powerpc - renamed show_state
regulator: add userspace-consumer driver
Maxim 1586 regulator driver -
ad6561dffa17f17bb68d7207d422c26c381c4313 ("module: trim exception table on init
free.") put a bogus trim_init_extable() function into ia64 which didn't compile.Signed-off-by: Rusty Russell
Signed-off-by: Tony Luck -
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ryusuke/nilfs2: (22 commits)
nilfs2: support contiguous lookup of blocks
nilfs2: add sync_page method to page caches of meta data
nilfs2: use device's backing_dev_info for btree node caches
nilfs2: return EBUSY against delete request on snapshot
nilfs2: modify list of unsupported features in caveats
nilfs2: enable sync_page method
nilfs2: set bio unplug flag for the last bio in segment
nilfs2: allow future expansion of metadata read out via get info ioctl
NILFS2: Pagecache usage optimization on NILFS2
nilfs2: remove nilfs_btree_operations from btree mapping
nilfs2: remove nilfs_direct_operations from direct mapping
nilfs2: remove bmap pointer operations
nilfs2: remove useless b_low and b_high fields from nilfs_bmap struct
nilfs2: remove pointless NULL check of bpop_commit_alloc_ptr function
nilfs2: move get block functions in bmap.c into btree codes
nilfs2: remove nilfs_bmap_delete_block
nilfs2: remove nilfs_bmap_put_block
nilfs2: remove header file for segment list operations
nilfs2: eliminate removal list of segments
nilfs2: add sufile function that can modify multiple segment usages
...
15 Jun, 2009
15 commits
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On Thu, May 28, 2009 at 10:59 AM, Mark Brown wrote:
> On Thu, May 28, 2009 at 07:15:16AM +0200, Philipp Zabel wrote:
>> The V3 regulator can be configured with an external resistor
>> connected to the feedback pin (R24 in the data sheet) to
>> increase the voltage range.
>>
>> For example, hx4700 has R24 = 3.32 kOhm to achieve a maximum
>> V3 voltage of 1.55 V which is needed for 624 MHz CPU frequency.
>>
>> Signed-off-by: Philipp Zabel
>
> Looks good.
>
> Acked-by: Mark BrownThanks, but it turns out I hit a 32 bit integer overflow in
the gain calculation. I'd like to mend that with the following
patch. Now max_uV could be increased up to 4.294 V, enough to
charge LiPo cells.Signed-off-by: Philipp Zabel
Acked-by: Robert Jarzmik
Signed-off-by: Liam Girdwood -
The V3 regulator can be configured with an external resistor
connected to the feedback pin (R24 in the data sheet) to
increase the voltage range.For example, hx4700 has R24 = 3.32 kOhm to achieve a maximum
V3 voltage of 1.55 V which is needed for 624 MHz CPU frequency.Signed-off-by: Philipp Zabel
Acked-by: Mark Brown
Acked-by: Robert Jarzmik
Signed-off-by: Liam Girdwood -
lp3971_i2c_remove' referenced in section `.data' of drivers/built-in.o:
defined in discarded section `.devexit.text' of drivers/built-in.oSigned-off-by: Liam Girdwood
-
This patch adds regulator drivers for National Semiconductors LP3971 PMIC.
This LP3971 PMIC controller has 3 DC/DC voltage converters and 5 low
drop-out (LDO) regulators. LP3971 PMIC controller uses I2C interface.Reviewed-by: Kyungmin Park
Signed-off-by: Marek Szyprowski
Acked-by: Mark Brown
Signed-off-by: Liam Girdwood -
In the near future, the driver core is going to not allow direct access
to the driver_data pointer in struct device. Instead, the functions
dev_get_drvdata() and dev_set_drvdata() should be used. These functions
have been around since the beginning, so are backwards compatible with
all older kernel versions.Cc: Mark Brown
Cc: Liam Girdwood
Signed-off-by: Greg Kroah-Hartman
Acked-by: Mark Brown
Signed-off-by: Liam Girdwood -
Several of the regulator drivers didn't have MODULE_ALIAS so couldn't be
auto loaded. Add the MODULE_ALIAS in case they do get built as modules.Signed-off-by: Mark Brown
Signed-off-by: Liam Girdwood -
Signed-off-by: Mark Brown
Signed-off-by: Liam Girdwood -
Regulators need to be available early in init in order to allow them
to be available for consumers when requested. This is generally done
by registering them at subsys_initcall() time but not all regulator
drivers have done that. Convert these drivers to do so in order to
mimimise future support.Signed-off-by: Mark Brown
Acked-by: Mike Rapoport
Signed-off-by: Liam Girdwood -
This patch fixes the follwing build failure on powerpc:-
> Today's linux-next build (powerpc allyesconfig) failed like this:
>
> drivers/regulator/userspace-consumer.c:43: error: conflicting types
> for 'show_state'
> include/linux/sched.h:273: note: previous definition of 'show_state'
> was here
>
> Caused by commit 5defa2bce704ca4151cfe24e4297aa7797cafd22 ("regulator:
> add userspace-consumer driver") which I have reverted for today.Signed-off-by: Liam Girdwood
-
The userspace-consumer driver allows control of voltage and current
regulator state from userspace. This is required for fine-grained
power management of devices that are completely controller by userspace
applications, e.g. a GPS transciever connected to a serial port.Signed-off-by: Mike Rapoport
Acked-by: Mark Brown
Signed-off-by: Liam Girdwood -
The Maxim 1586 regulator is a voltage regulator with 2
voltage outputs, specially suitable for Marvell PXA
chips. One output is in the range of required VCC_CORE by
the PXA27x chips, the other in the VCC_USIM required as well
by PXA27x chips.The chip is controlled through the I2C bus.
Signed-off-by: Robert Jarzmik
Acked-by: Mark Brown
Signed-off-by: Liam Girdwood -
Conflicts:
Documentation/feature-removal-schedule.txt
drivers/scsi/fcoe/fcoe.c
net/core/drop_monitor.c
net/core/net-traces.c -
Let's use TICKS instead of US, so PSCHED_TICKS2NS and PSCHED_NS2TICKS
(like in PSCHED_TICKS_PER_SEC already) to avoid misleading.Signed-off-by: Jarek Poplawski
Signed-off-by: David S. Miller -
While doing trie_rebalance(): resize(), inflate(), halve() RCU free
tnodes before updating their parents. It depends on RCU delaying the
real destruction, but if RCU readers start after call_rcu() and before
parent update they could access freed memory.It is currently prevented with preempt_disable() on the update side,
but it's not safe, except maybe classic RCU, plus it conflicts with
memory allocations with GFP_KERNEL flag used from these functions.This patch explicitly delays freeing of tnodes by adding them to the
list, which is flushed after the update is finished.Reported-by: Yan Zheng
Signed-off-by: Jarek Poplawski
Signed-off-by: David S. Miller -
On systems where CONFIG_SHMEM is disabled, mounting tmpfs filesystems can
fail when tmpfs options are used. This is because tmpfs creates a small
wrapper around ramfs which rejects unknown options, and ramfs itself only
supports a tiny subset of what tmpfs supports. This makes it pretty hard
to use the same userspace systems across different configuration systems.
As such, ramfs should ignore the tmpfs options when tmpfs is merely a
wrapper around ramfs.This used to work before commit c3b1b1cbf0 as previously, ramfs would
ignore all options. But now, we get:
ramfs: bad mount option: size=10M
mount: mounting mdev on /dev failed: Invalid argumentAnother option might be to restore the previous behavior, where ramfs
simply ignored all unknown mount options ... which is what Hugh prefers.Signed-off-by: Mike Frysinger
Signed-off-by: Hugh Dickins
Acked-by: Matt Mackall
Acked-by: Wu Fengguang
Cc: stable@kernel.org
Signed-off-by: Linus Torvalds
