Commit graph

190609 commits

Author SHA1 Message Date
Ben Dooks
32b6cb3872 ARM: SAMSUNG: Fix additional increment when running through gpios
The pm-gpio.c code was incrementing the gpio_nr from the nr_gpios
field and the bank-bank offset inside the loop, and also in the
for() loop with a ++.

Remove the ++, as the number is already at the next GPIO, thus
ensuring that we don't skip a gpio bank by accident.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2010-05-18 19:07:05 +09:00
Ben Dooks
4ac2a39767 ARM: S3C24XX: Add note on GPIO bank sizes
Add a table for the GPIO bank sizes for each SoC

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2010-05-18 19:06:35 +09:00
Ben Dooks
1635ca4aaf ARM: S3C24XX: Remove macros mapping GPIO number to base
As part of the cleanup, remove the old macros mapping GPIO numbers
to the base of the register now we have gpiolib to manage the GPIO
mappings for us.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2010-05-18 19:06:34 +09:00
Ben Dooks
7987bd7a70 ARM: S3C24XX: Update missed gpio calls to use gpiolib
Update a couple of S3C24XX and S3C2412 files that are still
using the GPIO number to register mapping calls to get the
s3c_gpio_chip and use the base field from that.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2010-05-18 19:06:33 +09:00
Ben Dooks
2c8fcfbf73 ARM: S3C24XX: Start cleanup of GPIO numbering
Start cleaning up the numbering of GPIO banks by removing the old
bank start definitions currently being used by some of the header
files.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2010-05-18 19:06:32 +09:00
Vasily Khoruzhick
a0026418d3 ARM: S3C244X: fix gpiolib port J support
Increase GPIOs number for S3C244X, and make S3C_GPIO_END
point to BANKJ end, otherwise gpiolib refuses to register
BANKJ

Signed-off-by: Vasily Khoruzhick <anarsoul@gmail.com>
[ben-linux@fluff.org: Move pm fix to new patch]
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2010-05-18 19:06:15 +09:00
Ben Dooks
fcef85c0c1 ARM: SAMSUNG: Add spinlock locking to GPIO banks
Add locking to each GPIO bank to allow for SMP capable code
to use the gpiolib functions. See the gpio-core.h header file
for more information.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2010-05-11 17:45:46 +09:00
Ben Dooks
1d3ef014b5 ARM: S3C24XX: Remove _INP macros in <mach/regs-gpioj.h>
Remove the _INP definitions, they are all zero and also unused

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2010-05-06 11:32:14 +09:00
Ben Dooks
9772b7586e ARM: S3C24XX: Remove S3C2410_GPJ numbering
Remove the old S3C2410_GPJ as we will be moving to the new gpiolib
based driver code and these numbers will become invalid.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2010-05-06 11:23:35 +09:00
Ben Dooks
31da46d9f1 ARM: S3C24XX: Wrapper s3c2410_gpio_setpin and s3c2410_gpio_pullup()
Change s3c2410_gpio_setpin() and s3c2410_gpio_pullup() to use
the new s3c_ gpio configuration calls until all their users
are converted.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2010-05-06 11:21:05 +09:00
Ben Dooks
fb3787470e ARM: S3C2410: Remove the users of s3c2410_gpio_pullup()
Remove the last s3c2410_gpio_pullup() users in arch/arm/mach-s3c2410

Note, since mach-h1940.c is setting output and a pull-up, the call
has vbeen chanerd to S3C_GPIO_PULL_NONE instead of S3C_GPIO_PULL_UP.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2010-05-06 11:03:50 +09:00
Ben Dooks
64f508da58 ARM: mini2440: Move to using gpiolib API and s3c_gpio functions
Move the mach-mini2440 to using the gpiolib API for GPIOS it
directly uses, and s3c_gpio calls for configuration.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2010-05-06 10:59:55 +09:00
Ben Dooks
9933847b29 ARM: S3C24XX: Remove s3c2410_gpio_getcfg(), implement s3c_gpio_getcfg()
Add s3c_gpio_getcfg() and change anything using s3c2410_gpio_getcfg() to
use this instead.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2010-05-06 10:50:42 +09:00
Ben Dooks
97a339995f ARM: SAMSUNG: Add GPIO configuration read calls
Add the necessary 1,2 and 4 bit configuration read calls for the new
gpio code to allow removal of the old s3c24xx gpio code.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2010-05-06 10:27:16 +09:00
Ben Dooks
5690a6267f ARM: S3C24XX: Remove s3c2410_gpio_getirq()
Remove s3c2410_gpio_getirq() as the only users is the pm code, and it
can be replicated by using gpio_to_irq().

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2010-05-06 09:32:32 +09:00
Ben Dooks
e6528d5e87 ARM: S3C24XX: Remove s3c2410_gpio_getpull()
Remove the unused s3c2410_gpio_getpull()

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2010-05-06 09:32:31 +09:00
Ben Dooks
eee2b94f01 ARM: S3C24XX: Remove s3c2410_gpio_setcfg()
Remove the implementation of s3c2410_gpio_setcfg() as it should now be
functionally equivalent to s3c_gpio_cfgpin(), and add a wrapper for those
drivers that are still using this call.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2010-05-06 09:32:30 +09:00
Ben Dooks
40b956f026 ARM: S3C24XX: Drop s3c2410 specific s3c2410_gpio_cfgpin()
The s3c_gpio_cfgpin() call should be functionally equivalent, so replace
the s3c2410_gpio_cfgpin() calls in the s3c24xx code with s3c_gpio_cfgpin
to allow moving away from a fixed GPIO number to register address mapping

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2010-05-06 09:32:29 +09:00
Ben Dooks
82a4b6dcc7 ARM: S3C24XX: Change s3c2410_gpio_pullupl(x, 1) to use s3c_gpio_cfgpull()
Start moving code that is using the old s3c2410_gpio API to using the
newer s3c_gpio variants by finding all the usages of s3c2410_gpio_pullup()
which disable the pin's pull up and replacing them.

 sed 's/s3c2410_gpio_pullup\(.*\), 1/s3c_gpio_cfgpull\1, S3C_GPIO_PULL_NONE/g'

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2010-05-06 09:32:28 +09:00
Ben Dooks
27da04049c ARM: S3C2410: Change s3c2410_gpio_pullupl(x, 1) to use s3c_gpio_cfgpull()
Start moving code that is using the old s3c2410_gpio API to using the
newer s3c_gpio variants by finding all the usages of s3c2410_gpio_pullup()
which disable the pin's pull up and replacing them.

sed 's/s3c2410_gpio_pullup\(.*\), 1/s3c_gpio_cfgpull\1, S3C_GPIO_PULL_NONE/g'

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2010-05-06 09:32:27 +09:00
Ben Dooks
7614e1d9b9 ARM: VR1000: Update mach-vr1000.c to use gpiolib API
Change mach-vr1000.c to use gpiolib for gpio control.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2010-05-06 09:32:26 +09:00
Ben Dooks
408c8b8ca4 ARM: BAST: Update mach-bast to use gpiolib API
Change mach-bast .c to use gpiolib for the GPIO lines that are directly
manipulated by it.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2010-05-06 09:32:25 +09:00
Ben Dooks
96efa8dac8 ARM: n30: Update mach-n30 to use gpiolib API
Change mach-n30.c to use gpiolib for the GPIO lines that are directly
manipulated by it.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2010-05-06 09:32:24 +09:00
Ben Dooks
2d2e0c8998 ARM: QT2410: Update mach-qt2410 to use gpiolib API
Change mach-qt2410.c to use gpiolib for the GPIO lines that are directly
manipulated by it.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2010-05-06 09:32:23 +09:00
Ben Dooks
db61ac54c9 ARM: H1940: Change mach-h1940 to use gpiolib API
Change  mach-h1940 to use the gpiolib calls instead of s3c2410_gpio
directly.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2010-05-06 09:32:22 +09:00
Ben Dooks
afc84ad11b ARM: JIVE: Update mach-jive to use gpiolib API
Change mach-jive to use gpiolib for the GPIO lines that are directly
manipulated by it.

Note, we ignore any errors from gpio_request(), unlikely to see any.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2010-05-06 09:32:21 +09:00
Ben Dooks
f4146a65fb ARM: H1940: Change h1940-bluetooth to use gpiolib API
Change the h1940-bluetooth driver to use gpiolib to set the output state
of GPH1.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2010-05-06 09:32:20 +09:00
Ben Dooks
7ced5eab39 ARM: S3C24XX: Add extended GPIO used on S3C2443 and beyond
Add the GPIO banks that are used on the S3C2443 and above to the
list of available GPIOS.

Currently we do not have any limit on the SoC GPIO, so these are
being registered whether the SoC has them or not. It is currently
up to the user not to try and use them.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2010-05-06 09:32:13 +09:00
Ben Dooks
1ec7269fd8 ARM: S3C24XX: Add the gpio pull configuration for pull-up
Add the necessary gpio configuration helper for the devices which
have a single-bit pull-up resistor disabled.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2010-05-06 09:25:57 +09:00
Ben Dooks
9bbb851c70 ARM: S3C24XX: Add initial s3c_gpio configuration code
Add support for s3c_gpio_setcfg() and s3c_gpio_setpull() implementations
to get ready for removal of the specific code being used by s3c24xx.

Also rename the s3c_gpio_setcfg_s3c24xx_banka to s3c_gpio_setcfg_s3c24xx_a
as seen in the header file to correct a build warning.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2010-05-06 09:25:50 +09:00
Linus Torvalds
7ebd467551 Merge branch 'drm-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6
* 'drm-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6:
  drm/radeon/kms/legacy: only enable load detection property on DVI-I
  drm/radeon/kms: fix panel scaling adjusted mode setup
  drivers/gpu/drm/drm_sysfs.c: sysfs files error handling
  drivers/gpu/drm/radeon/radeon_atombios.c: range check issues
  gpu: vga_switcheroo, fix lock imbalance
  drivers/gpu/drm/drm_memory.c: fix check for end of loop
  drivers/gpu/drm/via/via_video.c: fix off by one issue
  drm/radeon/kms/agp The wrong AGP chipset can cause a NULL pointer dereference
  drm/radeon/kms: r300 fix CS checker to allow zbuffer-only fastfill
2010-05-04 19:08:12 -07:00
Linus Torvalds
d7526f271f Merge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-tip
* 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-tip:
  powernow-k8: Fix frequency reporting
  x86: Fix parse_reservetop() build failure on certain configs
  x86: Fix NULL pointer access in irq_force_complete_move() for Xen guests
  x86: Fix 'reservetop=' functionality
2010-05-04 19:07:35 -07:00
Linus Torvalds
67bff7c087 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/security-testing-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/security-testing-2.6:
  KEYS: Fix RCU handling in key_gc_keyring()
  KEYS: Fix an RCU warning in the reading of user keys
2010-05-04 18:49:34 -07:00
David Howells
cf8304e8f3 KEYS: Fix RCU handling in key_gc_keyring()
key_gc_keyring() needs to either hold the RCU read lock or hold the keyring
semaphore if it's going to scan the keyring's list.  Given that it only needs
to read the key list, and it's doing so under a spinlock, the RCU read lock is
the thing to use.

Furthermore, the RCU check added in e7b0a61b79 is
incorrect as holding the spinlock on key_serial_lock is not grounds for
assuming a keyring's pointer list can be read safely.  Instead, a simple
rcu_dereference() inside of the previously mentioned RCU read lock is what we
want.

Reported-by: Serge E. Hallyn <serue@us.ibm.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Serge Hallyn <serue@us.ibm.com>
Acked-by: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Signed-off-by: James Morris <jmorris@namei.org>
2010-05-05 11:39:23 +10:00
David Howells
d9a9b4aeea KEYS: Fix an RCU warning in the reading of user keys
Fix an RCU warning in the reading of user keys:

===================================================
[ INFO: suspicious rcu_dereference_check() usage. ]
---------------------------------------------------
security/keys/user_defined.c:202 invoked rcu_dereference_check() without protection!

other info that might help us debug this:

rcu_scheduler_active = 1, debug_locks = 0
1 lock held by keyctl/3637:
 #0:  (&key->sem){+++++.}, at: [<ffffffff811a80ae>] keyctl_read_key+0x9c/0xcf

stack backtrace:
Pid: 3637, comm: keyctl Not tainted 2.6.34-rc5-cachefs #18
Call Trace:
 [<ffffffff81051f6c>] lockdep_rcu_dereference+0xaa/0xb2
 [<ffffffff811aa55f>] user_read+0x47/0x91
 [<ffffffff811a80be>] keyctl_read_key+0xac/0xcf
 [<ffffffff811a8a06>] sys_keyctl+0x75/0xb7
 [<ffffffff81001eeb>] system_call_fastpath+0x16/0x1b

Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Serge Hallyn <serue@us.ibm.com>
Signed-off-by: James Morris <jmorris@namei.org>
2010-05-05 11:38:52 +10:00
Alex Deucher
68b3adb429 drm/radeon/kms/legacy: only enable load detection property on DVI-I
DVI-D doesn't have analog.  This matches the avivo behavior.

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2010-05-05 11:28:11 +10:00
Alex Deucher
3515387ba9 drm/radeon/kms: fix panel scaling adjusted mode setup
This should duplicate exactly what the ddx does for both
legacy and avivo.

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2010-05-05 11:27:59 +10:00
Linus Torvalds
7572e56314 Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jlbec/ocfs2
* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jlbec/ocfs2:
  ocfs2: Avoid a gcc warning in ocfs2_wipe_inode().
  ocfs2: Avoid direct write if we fall back to buffered I/O
  ocfs2_dlmfs: Fix math error when reading LVB.
  ocfs2: Update VFS inode's id info after reflink.
  ocfs2: potential ERR_PTR dereference on error paths
  ocfs2: Add directory entry later in ocfs2_symlink() and ocfs2_mknod()
  ocfs2: use OCFS2_INODE_SKIP_ORPHAN_DIR in ocfs2_mknod error path
  ocfs2: use OCFS2_INODE_SKIP_ORPHAN_DIR in ocfs2_symlink error path
  ocfs2: add OCFS2_INODE_SKIP_ORPHAN_DIR flag and honor it in the inode wipe code
  ocfs2: Reset status if we want to restart file extension.
  ocfs2: Compute metaecc for superblocks during online resize.
  ocfs2: Check the owner of a lockres inside the spinlock
  ocfs2: one more warning fix in ocfs2_file_aio_write(), v2
  ocfs2_dlmfs: User DLM_* when decoding file open flags.
2010-05-04 16:33:18 -07:00
David Howells
a66f6375bd Fix the x86_64 implementation of call_rwsem_wait()
The x86_64 call_rwsem_wait() treats the active state counter part of the
R/W semaphore state as being 16-bit when it's actually 32-bit (it's half
of the 64-bit state).  It should do "decl %edx" not "decw %dx".

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-04 15:24:14 -07:00
Linus Torvalds
c81406d642 Merge branch 'i2c-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging
* 'i2c-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging:
  i2c-core: Use per-adapter userspace device lists
  i2c: Fix probing of FSC hardware monitoring chips
  i2c-core: Erase pointer to clientdata on removal
2010-05-04 15:20:37 -07:00
Linus Torvalds
f5fa05d972 Merge branch 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  perf: Fix resource leak in failure path of perf_event_open()
2010-05-04 15:16:15 -07:00
Linus Torvalds
f2809d61d6 Merge branch 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  rcu: Fix RCU lockdep splat on freezer_fork path
  rcu: Fix RCU lockdep splat in set_task_cpu on fork path
  mutex: Don't spin when the owner CPU is offline or other weird cases
2010-05-04 15:15:43 -07:00
Jean Delvare
6629dcff19 i2c-core: Use per-adapter userspace device lists
Using a single list for all userspace devices leads to a dead lock
on multiplexed buses in some circumstances (mux chip instantiated
from userspace). This is solved by using a separate list for each
bus segment.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Michael Lawnick <ml.lawnick@gmx.de>
2010-05-04 11:09:28 +02:00
Jean Delvare
b1d4b390ea i2c: Fix probing of FSC hardware monitoring chips
Some FSC hardware monitoring chips (Syleus at least) doesn't like
quick writes we typically use to probe for I2C chips. Use a regular
byte read instead for the address they live at (0x73). These are the
only known chips living at this address on PC systems.

For clarity, this fix should not be needed for kernels 2.6.30 and
later, as we started instantiating the hwmon devices explicitly based
on DMI data. Still, this fix is valuable in the following two cases:
* Support for recent FSC chips on older kernels. The DMI-based device
  instantiation is more difficult to backport than the device support
  itself.
* Case where the DMI-based device instantiation fails, whatever the
  reason. We fall back to probing in that case, so it should work.

This fixes kernel bug #15634:
https://bugzilla.kernel.org/show_bug.cgi?id=15634

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Cc: stable@kernel.org
2010-05-04 11:09:28 +02:00
Wolfram Sang
e4a7b9b04d i2c-core: Erase pointer to clientdata on removal
After discovering that a lot of i2c-drivers leave the pointer to their
clientdata dangling, it was decided to let the core handle this issue.
It is assumed that the core may access the private data after remove()
as there are no guarantees for the lifetime of such pointers anyhow (see
thread starting at http://lkml.org/lkml/2010/3/21/68)

Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
2010-05-04 11:09:27 +02:00
Joel Becker
d577632e65 ocfs2: Avoid a gcc warning in ocfs2_wipe_inode().
gcc warns that a variable is uninitialized.  It's actually handled, but
an early return fools gcc.  Let's just initialize the variable to a
garbage value that will crash if the usage is ever broken.

Signed-off-by: Joel Becker <joel.becker@oracle.com>
2010-05-03 19:15:49 -07:00
Linus Torvalds
d93ac51c7a Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client:
  ceph: remove bad auth_x kmem_cache
  ceph: fix lockless caps check
  ceph: clear dir complete, invalidate dentry on replayed rename
  ceph: fix direct io truncate offset
  ceph: discard incoming messages with bad seq #
  ceph: fix seq counting for skipped messages
  ceph: add missing #includes
  ceph: fix leaked spinlock during mds reconnect
  ceph: print more useful version info on module load
  ceph: fix snap realm splits
  ceph: clear dir complete on d_move
2010-05-03 16:36:19 -07:00
Sage Weil
b0930f8d38 ceph: remove bad auth_x kmem_cache
It's useless, since our allocations are already a power of 2.  And it was
allocated per-instance (not globally), which caused a name collision when
we tried to mount a second file system with auth_x enabled.

Signed-off-by: Sage Weil <sage@newdream.net>
2010-05-03 10:49:25 -07:00
Sage Weil
7ff899da02 ceph: fix lockless caps check
The __ variant requires caller to hold i_lock.

Signed-off-by: Sage Weil <sage@newdream.net>
2010-05-03 10:49:25 -07:00
Sage Weil
ea1409f961 ceph: clear dir complete, invalidate dentry on replayed rename
If a rename operation is resent to the MDS following an MDS restart, the
client does not get a full reply (containing the resulting metadata) back.
In that case, a ceph_rename() needs to compensate by doing anything useful
that fill_inode() would have, like d_move().

It also needs to invalidate the dentry (to workaround the vfs_rename_dir()
bug) and clear the dir complete flag, just like fill_trace().

Signed-off-by: Sage Weil <sage@newdream.net>
2010-05-03 10:49:25 -07:00