Graeme Gregory [Fri, 22 Jun 2012 12:36:19 +0000 (13:36 +0100)]
mfd: Add missing hunk to change palmas irq to clear on read
During conversion to regmap_irq this hunk was missing being moved
to MFD driver to put the chip into clear on read mode. Also as slave
is now set use it to determine which slave for the register call.
Signed-off-by: Graeme Gregory <gg@slimlogic.co.uk>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Graeme Gregory [Fri, 22 Jun 2012 12:36:18 +0000 (13:36 +0100)]
mfd: Fix palmas regulator pdata missing
Due to a merge error the section of code passing the pdata for the
regulator driver to the mfd_add_devices via the children structure
was missing. This corrects this problem.
Signed-off-by: Graeme Gregory <gg@slimlogic.co.uk>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Russ Dill [Thu, 14 Jun 2012 16:24:21 +0000 (09:24 -0700)]
mfd: USB: Fix the omap-usb EHCI ULPI PHY reset fix issues.
'ARM: OMAP3: USB: Fix the EHCI ULPI PHY reset issue' (
1fcb57d0) fixes
an issue where the ULPI PHYs were not held in reset while initializing
the EHCI controller. However, it also changes behavior in
omap-usb-host.c omap_usbhs_init by releasing reset while the
configuration in that function was done.
This change caused a regression on BB-xM where USB would not function
if 'usb start' had been run from u-boot before booting. A change was
made to release reset a little bit earlier which fixed the issue on
BB-xM and did not cause any regressions on 3430 sdp, the board for
which the fix was originally made.
This new fix, 'USB: EHCI: OMAP: Finish ehci omap phy reset cycle
before adding hcd.', (
3aa2ae74) caused a regression on OMAP5.
The original fix to hold the EHCI controller in reset during
initialization was correct, however it appears that changing
omap_usbhs_init to not hold the PHYs in reset during it's
configuration was incorrect. This patch first reverts both fixes, and
then changes ehci_hcd_omap_probe in ehci-omap.c to hold the PHYs in
reset as the original patch had done. It also is sure to incorporate
the _cansleep change that has been made in the meantime.
I've tested this on Beagleboard xM, I'd really like to get an ack from
the 3430 sdp and OMAP5 guys before getting this merged.
v3 - Brown paper bag its too early in the morning actually run
git commit amend fix
v2 - Put cansleep gpiolib call outside of spinlock
Acked-by: Mantesh Sarashetti <mantesh@ti.com>
Tested-by: Mantesh Sarashetti <mantesh@ti.com>
Acked-by: Keshava Munegowda <keshava_mgowda@ti.com>
Tested-by: Keshava Munegowda <keshava_mgowda@ti.com>
Signed-off-by: Russ Dill <Russ.Dill@gmail.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Peter Ujfalusi [Fri, 8 Jun 2012 08:54:21 +0000 (11:54 +0300)]
mfd: Update twl6040 Kconfig to avoid build breakage
twl6040 needs CONFIG_IRQ_DOMAIN to compile, without this we have:
drivers/mfd/twl6040-irq.c: In function 'twl6040_irq_init':
drivers/mfd/twl6040-irq.c:164:2: error: implicit declaration of function 'irq_domain_add_legacy'
drivers/mfd/twl6040-irq.c:165:11: error: 'irq_domain_simple_ops' undeclared (first use in this function)
drivers/mfd/twl6040-irq.c:165:11: note: each undeclared identifier is reported only once for each function it appears in
Reported-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Paul Bolle [Wed, 6 Jun 2012 21:25:11 +0000 (23:25 +0200)]
mfd: Delete ab5500-core.h
Commit
72fb92200d6c31b9982c06784e4bcff2f5b7d8b6 ("mfd/ab5500: delete
AB5500 support") deleted all files that used ab5500-core.h. That file
apparently was simply overlooked. Delete it too.
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Philippe Rétornaz [Tue, 29 May 2012 09:06:29 +0000 (11:06 +0200)]
mfd: mc13xxx workaround SPI hardware bug on i.Mx
The MC13xxx PMIC is mainly used on i.Mx SoC. On those SoC the SPI
hardware will deassert CS line as soon as the SPI FIFO is empty.
The MC13xxx hardware is very sensitive to CS line change as it
corrupts the transfer if CS is deasserted in the middle of a register
read or write.
It is not possible to use the CS line as a GPIO on some SoC, so we
need to workaround this by implementing a single SPI transfer to
access the PMIC.
Reviewed-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Marc Reilly <marc@cpdesign.com.au>
Signed-off-by: Philippe Rétornaz <philippe.retornaz@epfl.ch>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Philippe Rétornaz [Tue, 29 May 2012 09:06:28 +0000 (11:06 +0200)]
mfd: Fix mc13xxx SPI regmap
This fix the SPI regmap configuration, the wrong write flag was used.
Also, bits_per_word should not be set as the regmap spi implementation
uses a 8bits transfert granularity.
Signed-off-by: Philippe Rétornaz <philippe.retornaz@epfl.ch>
Tested-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Axel Lin [Mon, 21 May 2012 15:33:22 +0000 (23:33 +0800)]
mfd: Add terminating entry for i2c_device_id palmas table
The i2c_device_id table is supposed to be zero-terminated.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Linus Torvalds [Sun, 8 Jul 2012 16:09:27 +0000 (09:09 -0700)]
Merge branch 'for-3.5-fixes' of git://git./linux/kernel/git/tj/cgroup
Pull cgroup fixes from Tejun Heo:
"The previous cgroup pull request contained a patch to fix a race
condition during cgroup hierarchy umount. Unfortunately, while the
patch reduced the race window such that the test case I and Sasha were
using didn't trigger it anymore, it wasn't complete - Shyju and Li
could reliably trigger the race condition using a different test case.
The problem wasn't the gap between dentry deletion and release which
the previous patch tried to fix. The window was between the last
dput() of a root's child and the resulting dput() of the root. For
cgroup dentries, the deletion and release always happen synchronously.
As this releases the s_active ref, the refcnt of the root dentry,
which doesn't hold s_active, stays above zero without the
corresponding s_active. If umount was in progress, the last
deactivate_super() proceeds to destory the superblock and triggers
BUG() on the non-zero root dentry refcnt after shrinking.
This issue surfaced because cgroup dentries are now allowed to linger
after rmdir(2) since 3.5-rc1. Before, rmdir synchronously drained the
dentry refcnt and the s_active acquired by rmdir from vfs layer
protected the whole thing. After 3.5-rc1, cgroup may internally hold
and put dentry refs after rmdir finishes and the delayed dput()
doesn't have surrounding s_active ref exposing this issue.
This pull request contains two patches - one reverting the previous
incorrect fix and the other adding the surrounding s_active ref around
the delayed dput().
This is quite late in the release cycle but the change is on the safer
side and fixes the test cases reliably, so I don't think it's too
crazy."
* 'for-3.5-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
cgroup: fix cgroup hierarchy umount race
Revert "cgroup: superblock can't be released with active dentries"
Trond Myklebust [Sun, 8 Jul 2012 14:24:10 +0000 (10:24 -0400)]
NFS: Fix list manipulation snafus in fs/nfs/direct.c
Fix 2 bugs in nfs_direct_write_reschedule:
- The request needs to be removed from the 'reqs' list before it can
be added to 'failed'.
- Fix an infinite loop if the 'failed' list is non-empty.
Reported-by: Julia Lawall <julia.lawall@lip6.fr>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Tomi Valkeinen [Wed, 4 Jul 2012 12:43:49 +0000 (18:13 +0530)]
OMAPDSS: fix warnings if CONFIG_PM_RUNTIME=n
If runtime PM is not enabled in the kernel config, pm_runtime_get_sync()
will always return 1 and pm_runtime_put_sync() will always return
-ENOSYS. pm_runtime_get_sync() returning 1 presents no problem to the
driver, but -ENOSYS from pm_runtime_put_sync() causes the driver to
print a warning.
One option would be to ignore errors returned by pm_runtime_put_sync()
totally, as they only say that the call was unable to put the hardware
into suspend mode.
However, I chose to ignore the returned -ENOSYS explicitly, and print a
warning for other errors, as I think we should get notified if the HW
failed to go to suspend properly.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: Jassi Brar <jaswinder.singh@linaro.org>
Cc: Grazvydas Ignotas <notasas@gmail.com>
Signed-off-by: Archit Taneja <archit@ti.com>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Tomi Valkeinen [Wed, 4 Jul 2012 12:43:48 +0000 (18:13 +0530)]
OMAPDSS: Use PM notifiers for system suspend
The current way how omapdss handles system suspend and resume is that
omapdss device (a platform device, which is not part of the device
hierarchy of the DSS HW devices, like DISPC and DSI, or panels.) uses
the suspend and resume callbacks from platform_driver to handle system
suspend. It does this by disabling all enabled panels on suspend, and
resuming the previously disabled panels on resume.
This presents a few problems.
One is that as omapdss device is not related to the panel devices or the
DSS HW devices, there's no ordering in the suspend process. This means
that suspend could be first ran for DSS HW devices and panels, and only
then for omapdss device. Currently this is not a problem, as DSS HW
devices and panels do not handle suspend.
Another, more pressing problem, is that when suspending or resuming, the
runtime PM functions return -EACCES as runtime PM is disabled during
system suspend. This causes the driver to print warnings, and operations
to fail as they think that they failed to bring up the HW.
This patch changes the omapdss suspend handling to use PM notifiers,
which are called before suspend and after resume. This way we have a
normally functioning system when we are suspending and resuming the
panels.
This patch, I believe, creates a problem that somebody could enable or
disable a panel between PM_SUSPEND_PREPARE and the system suspend, and
similarly the other way around in resume. I choose to ignore the problem
for now, as it sounds rather unlikely, and if it happens, it's not
fatal.
In the long run the system suspend handling of omapdss and panels should
be thought out properly. The current approach feels rather hacky.
Perhaps the panel drivers should handle system suspend, or the users of
omapdss (omapfb, omapdrm) should handle system suspend.
Note that after this patch we could probably revert
0eaf9f52e94f756147dbfe1faf1f77a02378dbf9 (OMAPDSS: use sync versions of
pm_runtime_put). But as I said, this patch may be temporary, so let's
leave the sync version still in place.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Reported-by: Jassi Brar <jaswinder.singh@linaro.org>
Tested-by: Jassi Brar <jaswinder.singh@linaro.org>
Tested-by: Joe Woodward <jw@terrafix.co.uk>
Signed-off-by: Archit Taneja <archit@ti.com>
[fts: fixed 2 brace coding style issues]
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Eddie Wai [Fri, 29 Jun 2012 23:37:35 +0000 (16:37 -0700)]
[SCSI] bnx2i: Removed the reference to the netdev->base_addr
The netdev->base_addr parameter has been deprecated in the L2 bnx2
driver. This is used by bnx2i for the BARn iomapping.
This patch will directly reference the pci_resource_start instead
of using the deprecated netdev->base_addr.
This patch is actually a critical bug fix as the 1G bnx2 driver no
longer supports the netdev->base_addr in the current kernel of the scsi
tree. This means that Broadcom's 1G Linux iSCSI offload solution would
not work at all without this patch.
Signed-off-by: Eddie Wai <eddie.wai@broadcom.com>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Dan Williams [Fri, 22 Jun 2012 17:52:34 +0000 (10:52 -0700)]
[SCSI] libsas: fix taskfile corruption in sas_ata_qc_fill_rtf
fill_result_tf() grabs the taskfile flags from the originating qc which
sas_ata_qc_fill_rtf() promptly overwrites. The presence of an
ata_taskfile in the sata_device makes it tempting to just copy the full
contents in sas_ata_qc_fill_rtf(). However, libata really only wants
the fis contents and expects the other portions of the taskfile to not
be touched by ->qc_fill_rtf. To that end store a fis buffer in the
sata_device and use ata_tf_from_fis() like every other ->qc_fill_rtf()
implementation.
Cc: <stable@vger.kernel.org>
Reported-by: Praveen Murali <pmurali@logicube.com>
Tested-by: Praveen Murali <pmurali@logicube.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Mark Rustad [Thu, 21 Jun 2012 19:23:42 +0000 (12:23 -0700)]
[SCSI] Fix NULL dereferences in scsi_cmd_to_driver
Avoid crashing if the private_data pointer happens to be NULL. This has
been seen sometimes when a host reset happens, notably when there are
many LUNs:
host3: Assigned Port ID 0c1601
scsi host3: libfc: Host reset succeeded on port (0c1601)
BUG: unable to handle kernel NULL pointer dereference at
0000000000000350
IP: [<
ffffffff81352bb8>] scsi_send_eh_cmnd+0x58/0x3a0
<snip>
Process scsi_eh_3 (pid: 4144, threadinfo
ffff88030920c000, task
ffff880326b160c0)
Stack:
000000010372e6ba 0000000000000282 000027100920dca0 ffffffffa0038ee0
0000000000000000 0000000000030003 ffff88030920dc80 ffff88030920dc80
00000002000e0000 0000000a00004000 ffff8803242f7760 ffff88031326ed80
Call Trace:
[<
ffffffff8105b590>] ? lock_timer_base+0x70/0x70
[<
ffffffff81352fbe>] scsi_eh_tur+0x3e/0xc0
[<
ffffffff81353a36>] scsi_eh_test_devices+0x76/0x170
[<
ffffffff81354125>] scsi_eh_host_reset+0x85/0x160
[<
ffffffff81354291>] scsi_eh_ready_devs+0x91/0x110
[<
ffffffff813543fd>] scsi_unjam_host+0xed/0x1f0
[<
ffffffff813546a8>] scsi_error_handler+0x1a8/0x200
[<
ffffffff81354500>] ? scsi_unjam_host+0x1f0/0x1f0
[<
ffffffff8106ec3e>] kthread+0x9e/0xb0
[<
ffffffff81509264>] kernel_thread_helper+0x4/0x10
[<
ffffffff8106eba0>] ? kthread_freezable_should_stop+0x70/0x70
[<
ffffffff81509260>] ? gs_change+0x13/0x13
Code: 25 28 00 00 00 48 89 45 c8 31 c0 48 8b 87 80 00 00 00 48 8d b5 60 ff ff ff 89 d1 48 89 fb 41 89 d6 4c 89 fa 48 8b 80 b8 00 00 00
<48> 8b 80 50 03 00 00 48 8b 00 48 89 85 38 ff ff ff 48 8b 07 4c
RIP [<
ffffffff81352bb8>] scsi_send_eh_cmnd+0x58/0x3a0
RSP <
ffff88030920dc50>
CR2:
0000000000000350
Signed-off-by: Mark Rustad <mark.d.rustad@intel.com>
Tested-by: Marcus Dennis <marcusx.e.dennis@intel.com>
Cc: <stable@kernel.org>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Linus Torvalds [Sun, 8 Jul 2012 00:23:56 +0000 (17:23 -0700)]
Linux 3.5-rc6
Linus Torvalds [Sun, 8 Jul 2012 00:21:59 +0000 (17:21 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/jmorris/linux-security
Pull security docs update from James Morris.
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security:
security: Minor improvements to no_new_privs documentation
Linus Torvalds [Sat, 7 Jul 2012 17:17:00 +0000 (10:17 -0700)]
vfs: make O_PATH file descriptors usable for 'fchdir()'
We already use them for openat() and friends, but fchdir() also wants to
be able to use O_PATH file descriptors. This should make it comparable
to the O_SEARCH of Solaris. In particular, O_PATH allows you to access
(not-quite-open) a directory you don't have read persmission to, only
execute permission.
Noticed during development of multithread support for ksh93.
Reported-by: ольга крыжановская <olga.kryzhanovska@gmail.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: stable@kernel.org # O_PATH introduced in 3.0+
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Tejun Heo [Sat, 7 Jul 2012 23:08:18 +0000 (16:08 -0700)]
cgroup: fix cgroup hierarchy umount race
48ddbe1946 "cgroup: make css->refcnt clearing on cgroup removal
optional" allowed a css to linger after the associated cgroup is
removed. As a css holds a reference on the cgroup's dentry, it means
that cgroup dentries may linger for a while.
Destroying a superblock which has dentries with positive refcnts is a
critical bug and triggers BUG() in vfs code. As each cgroup dentry
holds an s_active reference, any lingering cgroup has both its dentry
and the superblock pinned and thus preventing premature release of
superblock.
Unfortunately, after
48ddbe1946, there's a small window while
releasing a cgroup which is directly under the root of the hierarchy.
When a cgroup directory is released, vfs layer first deletes the
corresponding dentry and then invokes dput() on the parent, which may
recurse further, so when a cgroup directly below root cgroup is
released, the cgroup is first destroyed - which releases the s_active
it was holding - and then the dentry for the root cgroup is dput().
This creates a window where the root dentry's refcnt isn't zero but
superblock's s_active is. If umount happens before or during this
window, vfs will see the root dentry with non-zero refcnt and trigger
BUG().
Before
48ddbe1946, this problem didn't exist because the last dentry
reference was guaranteed to be put synchronously from rmdir(2)
invocation which holds s_active around the whole process.
Fix it by holding an extra superblock->s_active reference across
dput() from css release, which is the dput() path added by
48ddbe1946
and the only one which doesn't hold an extra s_active ref across the
final cgroup dput().
Signed-off-by: Tejun Heo <tj@kernel.org>
LKML-Reference: <
4FEEA5CB.
8070809@huawei.com>
Reported-by: shyju pv <shyju.pv@huawei.com>
Tested-by: shyju pv <shyju.pv@huawei.com>
Cc: Sasha Levin <levinsasha928@gmail.com>
Acked-by: Li Zefan <lizefan@huawei.com>
Tejun Heo [Sat, 7 Jul 2012 22:55:47 +0000 (15:55 -0700)]
Revert "cgroup: superblock can't be released with active dentries"
This reverts commit
fa980ca87d15bb8a1317853f257a505990f3ffde. The
commit was an attempt to fix a race condition where a cgroup hierarchy
may be unmounted with positive dentry reference on root cgroup. While
the commit made the race condition slightly more difficult to trigger,
the race was still there and could be reliably triggered using a
different test case.
Revert the incorrect fix. The next commit will describe the race and
fix it correctly.
Signed-off-by: Tejun Heo <tj@kernel.org>
LKML-Reference: <
4FEEA5CB.
8070809@huawei.com>
Reported-by: shyju pv <shyju.pv@huawei.com>
Cc: Sasha Levin <levinsasha928@gmail.com>
Acked-by: Li Zefan <lizefan@huawei.com>
Shinya Kuribayashi [Sat, 7 Jul 2012 10:37:42 +0000 (13:37 +0300)]
hwspinlock/core: use global ID to register hwspinlocks on multiple devices
Commit
300bab9770 (hwspinlock/core: register a bank of hwspinlocks in a
single API call, 2011-09-06) introduced 'hwspin_lock_register_single()'
to register numerous (a bank of) hwspinlock instances in a single API,
'hwspin_lock_register()'.
At which time, 'hwspin_lock_register()' accidentally passes 'local IDs'
to 'hwspin_lock_register_single()', despite that ..._single() requires
'global IDs' to register hwspinlocks.
We have to convert into global IDs by supplying the missing 'base_id'.
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Shinya Kuribayashi <shinya.kuribayashi.px@renesas.com>
[ohad: fix error path of hwspin_lock_register, too]
Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
Linus Torvalds [Sat, 7 Jul 2012 18:20:59 +0000 (11:20 -0700)]
Merge branch 'fixes' of git://git.linaro.org/people/rmk/linux-arm
Pull ARM fixes from Russell King:
"Last merge window, we had some updates from Al cleaning up the signal
restart handling. These have caused some problems on ARM, and while
Al has some fixes, we have some concerns with Al's patches but we've
been unsuccesful with discussing this.
We have got to the point where we need to do something, and we've
decided that the best solution is to revert the appropriate commits
until Al is able to reply to us.
Also included here are four patches to fix warnings that I've noticed
in my build system, and one fix for kprobes test code."
* 'fixes' of git://git.linaro.org/people/rmk/linux-arm:
ARM: fix warning caused by wrongly typed arm_dma_limit
ARM: fix warnings about atomic64_read
ARM: 7440/1: kprobes: only test 'sub pc, pc, #1b-2b+8-2' on ARMv6
ARM: 7441/1: perf: return -EOPNOTSUPP if requested mode exclusion is unavailable
ARM: 7443/1: Revert "new way of handling ERESTART_RESTARTBLOCK"
ARM: 7442/1: Revert "remove unused restart trampoline"
ARM: fix set_domain() macro
ARM: fix mach-versatile/pci.c warning
Andy Lutomirski [Thu, 5 Jul 2012 18:23:24 +0000 (11:23 -0700)]
security: Minor improvements to no_new_privs documentation
The documentation didn't actually mention how to enable no_new_privs.
This also adds a note about possible interactions between
no_new_privs and LSMs (i.e. why teaching systemd to set no_new_privs
is not necessarily a good idea), and it references the new docs
from include/linux/prctl.h.
Suggested-by: Rob Landley <rob@landley.net>
Signed-off-by: Andy Lutomirski <luto@amacapital.net>
Acked-by: Kees Cook <keescook@chromium.org>
Signed-off-by: James Morris <james.l.morris@oracle.com>
Sylwester Nawrocki [Wed, 27 Jun 2012 13:12:31 +0000 (10:12 -0300)]
[media] Revert "[media] V4L: JPEG class documentation corrections"
This reverts commit
feed0258e11e04b7e0, as the same issues
are already covered in another version of that patch that
was also applied (
579e92ffac65c717c9c8a50feb755a).
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Sylwester Nawrocki [Mon, 4 Jun 2012 16:15:56 +0000 (13:15 -0300)]
[media] s5p-fimc: Add missing FIMC-LITE file operations locking
commit
5126f2590bee412e3053de851cb07f531e4be36a
"v4l2-dev: add flag to have the core lock all file operations"
introduced an additional bit flag (V4L2_FL_LOCK_ALL_FOPS) that
should be set by drivers that use the v4l2 core lock for all file
operations. Since this driver has been merged at the same time as
the core changes it doesn't set this flags and thus its all file
operations except IOCTL are not properly serialized. Fix this by
adding file ops locking in the driver.
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Laurent Pinchart [Fri, 6 Jul 2012 11:41:25 +0000 (08:41 -0300)]
[media] omap3isp: preview: Fix contrast and brightness handling
Commit
bac387efbb88cf0e8df6f46a38387897cea464ee ("omap3isp: preview:
Simplify configuration parameters access") added three fields to the
preview_update structure, but failed to properly update the related
initializers. Fix this.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Laurent Pinchart [Thu, 5 Jul 2012 17:31:33 +0000 (14:31 -0300)]
[media] omap3isp: preview: Fix output size computation depending on input format
The preview engine crops 4 columns and 4 lines when CFA is enabled.
Commit
b2da46e52fe7871cba36e1a435844502c0eccf39 ("omap3isp: preview: Add
support for greyscale input") inverted the condition by mistake, fix
this.
Reported-by: Florian Neuhaus <florian.neuhaus@reberinformatik.ch>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Tested-by: Florian Neuhaus <florian.neuhaus@reberinformatik.ch>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Anton Blanchard [Mon, 2 Jul 2012 00:58:52 +0000 (21:58 -0300)]
[media] winbond-cir: Initialise timeout, driver_type and allowed_protos
We need to set a timeout so we can go idle on no activity.
Signed-off-by: Anton Blanchard <anton@samba.org>
Acked-by: David Härdeman <david@hardeman.nu>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Anton Blanchard [Mon, 2 Jul 2012 00:58:00 +0000 (21:58 -0300)]
[media] winbond-cir: Fix txandrx module info
We aren't getting any module info for the txandx option because
of a typo:
parm: txandrx:bool
Signed-off-by: Anton Blanchard <anton@samba.org>
Acked-by: David Härdeman <david@hardeman.nu>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Anton Blanchard [Mon, 2 Jul 2012 00:38:03 +0000 (21:38 -0300)]
[media] cx23885: Silence unknown command warnings
I am seeing a constant stream of warnings on my cx23885 based card:
cx23885_tuner_callback(): Unknown command 0x2.
Add a check in cx23885_tuner_callback to silence it.
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Devin Heitmueller [Sun, 1 Jul 2012 19:15:14 +0000 (16:15 -0300)]
[media] cx23885: add support for HVR-1255 analog (cx23888 variant)
Get the HVR-1255 analog support working for all supported inputs. This
includes introduction of a new board profile for an OEM variant which
doesn't have all the same inputs as the retail version of the board.
Validated with the following boards:
HVR-1255 (0070:2259)
Thanks to Steven Toth and Hauppauge for loaning me various boards to
regression test with.
Thanks-to: Steven Toth <stoth@kernellabs.com>
Signed-off-by: Devin Heitmueler <dheitmueller@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Devin Heitmueller [Sun, 1 Jul 2012 19:15:13 +0000 (16:15 -0300)]
[media] cx23885: make analog support work for HVR_1250 (cx23885 variant)
The analog support in the cx23885 driver was completely broken for the
HVR-1250. Add the necessary code.
Note that this only implements analog for the composite and s-video
inputs. The tuner input continues to be non-functional due to a lack of
analog support in the mt2131 driver.
Validated with the following boards:
HVR-1250 (0070:7911)
Thanks to Steven Toth and Hauppauge for loaning me various boards to
regression test with.
Thanks-to: Steven Toth <stoth@kernellabs.com>
Signed-off-by: Devin Heitmueler <dheitmueller@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Devin Heitmueller [Sun, 1 Jul 2012 19:15:12 +0000 (16:15 -0300)]
[media] cx25840: fix vsrc/hsrc usage on cx23888 designs
The location of the vsrc/hsrc registers moved in the cx23888, causing
the s_mbus call to fail prematurely indicating that "720x480 is not a
valid size". The function bailed out before many pertinent registers
were set related to the scaler (causing unexpected results in video
rendering when doing raw video capture).
Use the correct registers for the cx23888.
Validated with the following boards:
HVR-1800 retail (0070:7801)
HVR-1800 OEM (0070:7809)
HVR-1850 retail (0070:8541)
Thanks to Steven Toth and Hauppauge for loaning me various boards to
regression test with.
Reported-by: Jonathan <sitten74490@mypacks.net>
Thanks-to: Steven Toth <stoth@kernellabs.com>
Signed-off-by: Devin Heitmueler <dheitmueller@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Devin Heitmueller [Sun, 1 Jul 2012 19:15:11 +0000 (16:15 -0300)]
[media] cx25840: fix regression in HVR-1800 analog audio
The refactoring of the cx25840 driver to support the cx23888 caused breakage
with the existing support for cx23885/cx23887 analog audio support. Tweak
the code so that it only uses the code if it really is a cx23888 instead of
applying it to all cx2388x based devices.
Validated with the following boards:
HVR-1800 retail (0070:7801)
HVR-1800 OEM (0070:7809)
HVR_1850 retail (0070:8541)
Thanks to Steven Toth and Hauppauge for loaning me various boards to
regression test with.
Reported-by: Jonathan <sitten74490@mypacks.net>
Thanks-to: Steven Toth <stoth@kernellabs.com>
Signed-off-by: Devin Heitmueler <dheitmueller@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Devin Heitmueller [Sun, 1 Jul 2012 19:15:10 +0000 (16:15 -0300)]
[media] cx25840: fix regression in analog support hue/saturation controls
Fix regression in HVR-1800 analog support hue/saturation controls.
The changes made for the cx23888 caused regressions in the analog
support for cx23885/cx23887 based boards (partly due to changes in the
locations of the hue/saturation controls). As a result the wrong
registers were being overwritten.
Add code to use the correct registers if it's a cx23888
Validated with the following boards:
HVR-1800 retail (0070:7801)
HVR-1800 OEM (0070:7809)
HVR-1850 retail (0070:8541)
Thanks to Steven Toth and Hauppauge for loaning me various boards to
regression test with.
Reported-by: Jonathan <sitten74490@mypacks.net>
Thanks-to: Steven Toth <stoth@kernellabs.com>
Signed-off-by: Devin Heitmueler <dheitmueller@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Devin Heitmueller [Sun, 1 Jul 2012 19:15:09 +0000 (16:15 -0300)]
[media] cx25840: fix regression in HVR-1800 analog support
The refactoring of the cx25840 driver to support the cx23888 caused breakage
with the existing support for cx23885/cx23887 analog support. Rework the
routines such that the new code is only used for the 888.
Validated with the following boards:
HVR-1800 retail (0070:7801)
HVR-1800 OEM (0070:7809)
HVR_1850 retail (0070:8541)
Thanks to Steven Toth and Hauppauge for loaning me various boards to
regression test with.
Reported-by: Jonathan <sitten74490@mypacks.net>
Thanks-to: Steven Toth <stoth@kernellabs.com>
Signed-off-by: Devin Heitmueler <dheitmueller@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Kamil Debski [Tue, 26 Jun 2012 07:44:40 +0000 (04:44 -0300)]
[media] s5p-mfc: Fixed setup of custom controls in decoder and encoder
Fixed bugs in functions that initialize custom controls.
Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
David Dillow [Mon, 18 Jun 2012 03:15:21 +0000 (00:15 -0300)]
[media] cx231xx: don't DMA to random addresses
Commit
7a6f6c29d264cdd2fe0eb3d923217eed5f0ad134 (cx231xx: use
URB_NO_TRANSFER_DMA_MAP) was intended to avoid mapping the DMA buffer
for URB twice. This works for the URBs allocated with usb_alloc_urb(),
as those are allocated from cohernent DMA pools, but the flag was also
added for the VBI and audio URBs, which have a manually allocated area.
This leaves the random trash in the structure after allocation as the
DMA address, corrupting memory and preventing VBI and audio from
working. Letting the USB core map the buffers solves the problem.
Cc: stable@kernel.org
Signed-off-by: David Dillow <dave@thedillows.org>
Cc: Sri Deevi <srinivasa.deevi@conexant.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Mauro Carvalho Chehab [Fri, 6 Jul 2012 01:52:34 +0000 (22:52 -0300)]
[media] em28xx: fix em28xx-rc load
The logic that checks if a device has remote control is wrong.
Due to that, the em28xx RC module is not loaded by default.
Fix the logic, in order to make it work properly.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Santosh Nayak [Sat, 23 Jun 2012 10:59:54 +0000 (07:59 -0300)]
[media] dvb-core: Release semaphore on error path dvb_register_device()
There is a missing "up_write()" here. Semaphore should be released
before returning error value.
Cc: stable@kernel.org
Signed-off-by: Santosh Nayak <santoshprasadnayak@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Linus Torvalds [Fri, 6 Jul 2012 22:32:18 +0000 (15:32 -0700)]
Merge tag 'ecryptfs-3.5-rc6-fixes' of git://git./linux/kernel/git/tyhicks/ecryptfs
Pull eCryptfs fixes from Tyler Hicks:
"Fixes an incorrect access mode check when preparing to open a file in
the lower filesystem. This isn't an urgent fix, but it is simple and
the check was obviously incorrect.
Also fixes a couple important bugs in the eCryptfs miscdev interface.
These changes are low risk due to the small number of users that use
the miscdev interface. I was able to keep the changes minimal and I
have some cleaner, more complete changes queued up for the next merge
window that will build on these patches."
* tag 'ecryptfs-3.5-rc6-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tyhicks/ecryptfs:
eCryptfs: Gracefully refuse miscdev file ops on inherited/passed files
eCryptfs: Fix lockdep warning in miscdev operations
eCryptfs: Properly check for O_RDONLY flag before doing privileged open
Linus Torvalds [Fri, 6 Jul 2012 20:59:50 +0000 (13:59 -0700)]
Merge git://git./linux/kernel/git/nab/target-pending
Pull target fixes from Nicholas Bellinger:
"Two minor target fixes. There is really nothing exciting and/or
controversial this time around.
There's one fix from MDR for a RCU debug warning message within tcm_fc
code (CC'ed to stable), and a small AC fix for qla_target.c based upon
a recent Coverity static report.
Also, there is one other outstanding virtio-scsi LUN scanning bugfix
that has been uncovered with the in-flight tcm_vhost driver over the
last days, and that needs to make it into 3.5 final too. This patch
has been posted to linux-scsi again here:
http://marc.info/?l=linux-scsi&m=
134160609212542&w=2
and I've asked James to include it in his next PULL request."
* git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending:
qla2xxx: print the right array elements in qlt_async_event
tcm_fc: Resolve suspicious RCU usage warnings
Tyler Hicks [Mon, 11 Jun 2012 16:24:11 +0000 (09:24 -0700)]
eCryptfs: Gracefully refuse miscdev file ops on inherited/passed files
File operations on /dev/ecryptfs would BUG() when the operations were
performed by processes other than the process that originally opened the
file. This could happen with open files inherited after fork() or file
descriptors passed through IPC mechanisms. Rather than calling BUG(), an
error code can be safely returned in most situations.
In ecryptfs_miscdev_release(), eCryptfs still needs to handle the
release even if the last file reference is being held by a process that
didn't originally open the file. ecryptfs_find_daemon_by_euid() will not
be successful, so a pointer to the daemon is stored in the file's
private_data. The private_data pointer is initialized when the miscdev
file is opened and only used when the file is released.
https://launchpad.net/bugs/994247
Signed-off-by: Tyler Hicks <tyhicks@canonical.com>
Reported-by: Sasha Levin <levinsasha928@gmail.com>
Tested-by: Sasha Levin <levinsasha928@gmail.com>
Alan Cox [Wed, 4 Jul 2012 15:35:35 +0000 (16:35 +0100)]
qla2xxx: print the right array elements in qlt_async_event
Based upon Alan's patch from Coverity scan id 793583, these debug
messages in qlt_async_event() should be starting from byte 0, which is
always the Asynchronous Event Status Code from the parent switch statement.
Also, rename reason_code -> login_code following the language used in
2500 FW spec for Port Database Changed (0x8014) -> Port Database Changed
Event Mailbox Register for mailbox[2].
Signed-off-by: Alan Cox <alan@linux.intel.com>
Cc: Chad Dupuis <chad.dupuis@qlogic.com>
Cc: Giridhar Malavali <giridhar.malavali@qlogic.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Magnus Damm [Fri, 6 Jul 2012 08:20:05 +0000 (17:20 +0900)]
ARM: shmobile: fix platsmp.c build when ARCH_SH73A0=n
Fix build error in the case of SMP=y but ARCH_SH73A0=n
introduced by:
9601e87 ARM: shmobile: fix smp build
The use of of_machine_is_compatible() will link in the
the SoC-specific symbols:
"sh73a0_get_core_count", "sh73a0_smp_prepare_cpus",
"sh73a0_secondary_init" and "sh73a0_boot_secondary".
This patch adds an ugly #ifdef wrapper as a stop-gap
solution.
Signed-off-by: Magnus Damm <damm@opensource.se>
Tested-by: Tested-by: Simon Horman <horms@verge.net.au>
Acked-by: "Rafael J. Wysocki" <rjw@sisk.pl>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Mark Rustad [Tue, 26 Jun 2012 22:57:30 +0000 (15:57 -0700)]
tcm_fc: Resolve suspicious RCU usage warnings
Use rcu_dereference_protected to tell rcu that the ft_lport_lock
is held during ft_lport_create. This resolved "suspicious RCU usage"
warnings when debugging options are turned on.
Signed-off-by: Mark Rustad <mark.d.rustad@intel.com>
Tested-by: Ross Brattain <ross.b.brattain@intel.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Arnd Bergmann [Fri, 6 Jul 2012 19:44:51 +0000 (21:44 +0200)]
Merge branch 'ux500/fixes-3.5' into fixes
From Lee Jones <lee.jones@linaro.org>:
* ux500/fixes-3.5:
ARM: ux500: Over-ride the DT device naming scheme for pinctrl
ARM: ux500: Fix build errors/warnings when MACH_UX500_DT is not set
of: address: Don't fail a lookup just because a node has no reg property
I ended up rebasing Lee's branch on 3.5-rc5 because we have more patches
lined for 3.6 that depend on them, and I want to keep all branches in
arm-soc be based on -rc releases rather than random commits in the
upstream history.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Lee Jones [Fri, 6 Jul 2012 14:59:01 +0000 (15:59 +0100)]
ARM: ux500: Over-ride the DT device naming scheme for pinctrl
When pin control mapping tables are written the registered device
name is supplied for use in name-based searches within the pinctrl
driver. In the case of the DB8500 the string "pinctrl-db8500" is
used. However, when we register the driver with Device Tree, its
naming convention uses something that looks more like "pinctrl.2".
To work around the device naming inconsistencies between devices
registered via platform code and the ones registered by Device
Tree, we use AUXDATA to over-ride the Device Tree naming scheme.
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Lee Jones [Fri, 15 Jun 2012 08:27:54 +0000 (09:27 +0100)]
ARM: ux500: Fix build errors/warnings when MACH_UX500_DT is not set
When MACH_UX500_DT and all related Device Tree configurations are forced
off the warning and error below prevent the kernel from compiling. This
simple patch fixes both issues and allows for full build and boot of
ST-Ericsson's low-cost development board, Snowball.
Warnings fixed:
arch/arm/mach-ux500/board-mop500.c:680:32: warning: ‘snowball_of_platform_devs’ defined but not used
Errors fixed:
arch/arm/mach-ux500/timer.c: In function ‘ux500_timer_init’:
arch/arm/mach-ux500/timer.c:66:3: error: implicit declaration of function ‘of_find_matching_node’
arch/arm/mach-ux500/timer.c:66:6: warning: assignment makes pointer from integer without a cast
Cc: stable@vger.kernel.org
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Lee Jones [Thu, 5 Jul 2012 14:15:36 +0000 (15:15 +0100)]
of: address: Don't fail a lookup just because a node has no reg property
Sometimes it doesn't make any sense for a node to have an address.
In this case device lookup will always be unsuccessful because we
currently assume every node will have a reg property. This patch
changes the semantics so that the resource address and the lookup
address will only be compared if one exists.
Things like AUXDATA() rely on of_dev_lookup to return the lookup
entry of a particular device in order to do things like apply
platform_data to a device. However, this is currently broken for
nodes which do not have a reg property, meaning that platform_data
can not be passed in those cases.
Acked-by: Rob Herring <rob.herring@calxeda.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Linus Torvalds [Fri, 6 Jul 2012 17:34:48 +0000 (10:34 -0700)]
Merge tag 'for-linus-
20120706' of git://git.infradead.org/linux-mtd
Pull two MTD fixes from David Woodhouse:
- Fix a logic error in OLPC CAFÉ NAND ready() function.
- Fix regression due to bitflip handling changes.
* tag 'for-linus-
20120706' of git://git.infradead.org/linux-mtd:
mtd: cafe_nand: fix an & vs | mistake
mtd: nand: initialize bitflip_threshold prior to BBT scanning
Andy Lutomirski [Thu, 5 Jul 2012 23:00:11 +0000 (16:00 -0700)]
mm: Hold a file reference in madvise_remove
Otherwise the code races with munmap (causing a use-after-free
of the vma) or with close (causing a use-after-free of the struct
file).
The bug was introduced by commit
90ed52ebe481 ("[PATCH] holepunch: fix
mmap_sem i_mutex deadlock")
Cc: Hugh Dickins <hugh@veritas.com>
Cc: Miklos Szeredi <mszeredi@suse.cz>
Cc: Badari Pulavarty <pbadari@us.ibm.com>
Cc: Nick Piggin <npiggin@suse.de>
Cc: stable@vger.kernel.org
Signed-off-by: Andy Lutomirski <luto@amacapital.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Fri, 6 Jul 2012 17:04:39 +0000 (10:04 -0700)]
Merge branch 'fixes' of git://git./linux/kernel/git/jlbec/ocfs2
Pull ocfs2 fixes from Joel Becker.
* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jlbec/ocfs2:
aio: make kiocb->private NUll in init_sync_kiocb()
ocfs2: Fix bogus error message from ocfs2_global_read_info
ocfs2: for SEEK_DATA/SEEK_HOLE, return internal error unchanged if ocfs2_get_clusters_nocache() or ocfs2_inode_lock() call failed.
ocfs2: use spinlock irqsave for downconvert lock.patch
ocfs2: Misplaced parens in unlikley
ocfs2: clear unaligned io flag when dio fails
Linus Torvalds [Fri, 6 Jul 2012 17:02:12 +0000 (10:02 -0700)]
Merge git://git.samba.org/sfrench/cifs-2.6
Pull cifs fixes from Steve French.
* git://git.samba.org/sfrench/cifs-2.6:
cifs: when server doesn't set CAP_LARGE_READ_X, cap default rsize at MaxBufferSize
cifs: fix parsing of password mount option
Linus Torvalds [Fri, 6 Jul 2012 16:50:39 +0000 (09:50 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/dtor/input
Pull input layer fixes from Dmitry Torokhov:
"Two fixes for regressions in Wacom driver and fixes for drivers using
threaded IRQ framework without specifying IRQF_ONESHOT."
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: request threaded-only IRQs with IRQF_ONESHOT
Input: wacom - don't retrieve touch_max when it is predefined
Input: wacom - fix retrieving touch_max bug
Input: fix input.h kernel-doc warning
Kay Sievers [Fri, 6 Jul 2012 16:50:09 +0000 (09:50 -0700)]
kmsg: make sure all messages reach a newly registered boot console
We suppress printing kmsg records to the console, which are already printed
immediately while we have received their fragments.
Newly registered boot consoles print the entire kmsg buffer during
registration. Clear the console-suppress flag after we skipped the record
during its first storage, so any later print will see these records as usual.
Signed-off-by: Kay Sievers <kay@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Kay Sievers [Fri, 6 Jul 2012 16:50:09 +0000 (09:50 -0700)]
kmsg: properly handle concurrent non-blocking read() from /proc/kmsg
The /proc/kmsg read() interface is internally simply wired up to a sequence
of syslog() syscalls, which might are racy between their checks and actions,
regarding concurrency.
In the (very uncommon) case of concurrent readers of /dev/kmsg, relying on
usual O_NONBLOCK behavior, the recently introduced mutex might block an
O_NONBLOCK reader in read(), when poll() returns for it, but another process
has already read the data in the meantime. We've seen that while running
artificial test setups and tools that "fight" about /proc/kmsg data.
This restores the original /proc/kmsg behavior, where in case of concurrent
read()s, poll() might wake up but the read() syscall will just return 0 to
the caller, while another process has "stolen" the data.
This is in the general case not the expected behavior, but it is the exact
same one, that can easily be triggered with a 3.4 kernel, and some tools
might just rely on it.
The mutex is not needed, the original integrity issue which introduced it,
is in the meantime covered by:
"fill buffer with more than a single message for SYSLOG_ACTION_READ"
116e90b23f74d303e8d607c7a7d54f60f14ab9f2
Cc: Yuanhan Liu <yuanhan.liu@linux.intel.com>
Acked-by: Jan Beulich <jbeulich@suse.com>
Signed-off-by: Kay Sievers <kay@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Kay Sievers [Fri, 6 Jul 2012 16:50:09 +0000 (09:50 -0700)]
kmsg: add the facility number to the syslog prefix
After the recent split of facility and level into separate variables,
we miss the facility value (always 0 for kernel-originated messages)
in the syslog prefix.
On Tue, Jul 3, 2012 at 12:45 PM, Dan Carpenter <dan.carpenter@oracle.com> wrote:
> Static checkers complain about the impossible condition here.
>
> In
084681d14e ('printk: flush continuation lines immediately to
> console'), we changed msg->level from being a u16 to being an unsigned
> 3 bit bitfield.
Cc: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Kay Sievers <kay@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Kay Sievers [Fri, 6 Jul 2012 16:50:09 +0000 (09:50 -0700)]
kmsg: escape the backslash character while exporting data
Non-printable characters in the log data are hex-escaped to ensure safe
post processing. We need to escape a backslash we find in the data, to be
able to distinguish it from a backslash we add for the escaping.
Also escape the non-printable character 127.
Thanks to Miloslav Trmac for the heads up.
Reported-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Kay Sievers <kay@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
liu chuansheng [Fri, 6 Jul 2012 16:50:08 +0000 (09:50 -0700)]
printk: replacing the raw_spin_lock/unlock with raw_spin_lock/unlock_irq
In function devkmsg_read/writev/llseek/poll/open()..., the function
raw_spin_lock/unlock is used, there is potential deadlock case happening.
CPU1: thread1 doing the cat /dev/kmsg:
raw_spin_lock(&logbuf_lock);
while (user->seq == log_next_seq) {
when thread1 run here, at this time one interrupt is coming on CPU1 and running
based on this thread,if the interrupt handle called the printk which need the
logbuf_lock spin also, it will cause deadlock.
So we should use raw_spin_lock/unlock_irq here.
Acked-by: Kay Sievers <kay@vrfy.org>
Signed-off-by: liu chuansheng <chuansheng.liu@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Herton Ronaldo Krzesinski [Wed, 16 May 2012 19:21:52 +0000 (16:21 -0300)]
mtd: nandsim: don't open code a do_div helper
We don't need to open code the divide function, just use div_u64 that
already exists and do the same job. While this is a straightforward
clean up, there is more to that, the real motivation for this.
While building on a cross compiling environment in armel, using gcc
4.6.3 (Ubuntu/Linaro 4.6.3-1ubuntu5), I was getting the following build
error:
ERROR: "__aeabi_uldivmod" [drivers/mtd/nand/nandsim.ko] undefined!
After investigating with objdump and hand built assembly version
generated with the compiler, I narrowed __aeabi_uldivmod as being
generated from the divide function. When nandsim.c is built with
-fno-inline-functions-called-once, that happens when
CONFIG_DEBUG_SECTION_MISMATCH is enabled, the do_div optimization in
arch/arm/include/asm/div64.h doesn't work as expected with the open
coded divide function: even if the do_div we are using doesn't have a
constant divisor, the compiler still includes the else parts of the
optimized do_div macro, and translates the divisions there to use
__aeabi_uldivmod, instead of only calling __do_div_asm -> __do_div64 and
optimizing/removing everything else out.
So to reproduce, gcc 4.6 plus CONFIG_DEBUG_SECTION_MISMATCH=y and
CONFIG_MTD_NAND_NANDSIM=m should do it, building on armel.
After this change, the compiler does the intended thing even with
-fno-inline-functions-called-once, and optimizes out as expected the
constant handling in the optimized do_div on arm. As this also avoids a
build issue, I'm marking for Stable, as I think is applicable for this
case.
Signed-off-by: Herton Ronaldo Krzesinski <herton.krzesinski@canonical.com>
Cc: stable@vger.kernel.org
Acked-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Mike Dunn [Tue, 22 May 2012 18:03:42 +0000 (11:03 -0700)]
mtd: ABI documentation: clarification of bitflip_threshold
The -EUCLEAN return value applies to mtd_read_oob() as well as mtd_read(), but
only mtd_read() was mentioned in the blurd on bitflip_threshold in the ABI
documentation.
Signed-off-by: Mike Dunn <mikedunn@newsguy.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Sascha Hauer [Tue, 26 Jun 2012 15:26:16 +0000 (17:26 +0200)]
mtd: gpmi-nand: fix read page when reading to vmalloced area
The gpmi-nand driver uses virt_addr_valid() to check whether a buffer
is suitable for dma. If it's not, a driver allocated buffer is used
instead. Then after a page read the driver allocated buffer must be
copied to the user supplied buffer. This does not happen since commit
7725cc85932bd02dd12c23108e0ef748c551ccba.
This patch fixes the issue. The bug is encountered with UBI which uses a
vmalloced buffer for the volume table.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Tested-by: snijsure@grid-net.com
Acked-by: Huang Shijie <b32955@freescale.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Sascha Hauer [Tue, 29 May 2012 08:16:09 +0000 (10:16 +0200)]
mtd: mxc_nand: use 32bit copy functions
The following commit changes the function used to copy from/to
the hardware buffer to memcpy_[from|to]io. This does not work
since the hardware cannot handle the byte accesses used by these
functions. Instead of reverting this patch introduce 32bit
correspondents of these functions.
| commit
5775ba36ea9c760c2d7e697dac04f2f7fc95aa62
| Author: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
| Date: Tue Apr 24 10:05:22 2012 +0200
|
| mtd: mxc_nand: fix several sparse warnings about incorrect address space
|
| Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
| Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Dan Carpenter [Sat, 9 Jun 2012 16:08:25 +0000 (19:08 +0300)]
mtd: cafe_nand: fix an & vs | mistake
The intent here was clearly to set result to true if the 0x40000000 flag
was set. But instead there was a | vs & typo and we always set result
to true.
Artem: check the spec at
wiki.laptop.org/images/5/5c/88ALP01_Datasheet_July_2007.pdf
and this fix looks correct.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Cc: stable@vger.kernel.org
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Tony Lindgren [Fri, 6 Jul 2012 08:58:23 +0000 (01:58 -0700)]
Merge branch 'for_3.5/fixes/pm-3' of git://git./linux/kernel/git/khilman/linux-omap-pm into fixes
Paul Walmsley [Wed, 4 Jul 2012 11:22:53 +0000 (05:22 -0600)]
ARM: OMAP2+: hwmod code/clockdomain data: fix 32K sync timer
Kevin discovered that commit
c8d82ff68fb6873691536cf33021977efbf5593c
("ARM: OMAP2/3: hwmod data: Add 32k-sync timer data to hwmod
database") broke CORE idle on OMAP3. This prevents device low power
states.
The root cause is that the 32K sync timer IP block does not support
smart-idle mode[1], and so the hwmod code keeps the IP block in
no-idle mode while it is active. This in turn prevents the WKUP
clockdomain from transitioning to idle. There is a hardcoded sleep
dependency that prevents the CORE_L3 and CORE_CM clockdomains from
transitioning to idle when the WKUP clockdomain is active[2], so the
chip cannot enter any device low power states.
It turns out that there is no need to take the 32k sync timer out of
idle. The IP block itself probably does not have any native idle
handling at all, due to its simplicity. Furthermore, the PRCM will
never request target idle for this IP block while the kernel is
running, due to the sleep dependency that prevents the WKUP
clockdomain from idling while the CORE_L3 clockdomain is active. So
we can safely leave the 32k sync timer in target-force-idle mode, even
while we continue to access it.
This workaround is implemented by defining a new clockdomain flag,
CLKDM_ACTIVE_WITH_MPU, that indicates that the clockdomain is
guaranteed to be active whenever the MPU is inactive. If an IP
block's main functional clock exists inside this clockdomain, and the
IP block does not support smart-idle modes, then the hwmod code will
place the IP block into target force-idle mode even when enabled. The
WKUP clockdomains on OMAP3/4 are marked with this flag. (On OMAP2xxx,
no OCP header existed on the 32k sync timer.) Other clockdomains also
should be marked with this flag, but those changes are deferred until
a later merge window, to create a minimal fix.
Another theoretically clean fix for this problem would be to implement
PM runtime-based control for 32k sync timer accesses. These PM
runtime calls would need to located in a custom clocksource, since the
32k sync timer is currently used as an MMIO clocksource. But in
practice, there would be little benefit to doing so; and there would
be some cost, due to the addition of unnecessary lines of code and the
additional CPU overhead of the PM runtime and hwmod code - unnecessary
in this case.
Another possible fix would have been to modify the pm34xx.c code to
force the IP block idle before entering WFI. But this would not have
been an acceptable approach: we are trying to remove this type of
centralized IP block idle control from the PM code.
This patch is a collaboration between Kevin Hilman <khilman@ti.com>
and Paul Walmsley <paul@pwsan.com>.
Thanks to Vaibhav Hiremath <hvaibhav@ti.com> for providing comments on
an earlier version of this patch. Thanks to Tero Kristo
<t-kristo@ti.com> for identifying a bug in an earlier version of this
patch. Thanks to Benoît Cousson <b-cousson@ti.com> for identifying
some bugs in several versions of this patch and for implementation
comments.
References:
1. Table 16-96 "REG_32KSYNCNT_SYSCONFIG" of the OMAP34xx TRM Rev. ZU
(SWPU223U), available from:
http://www.ti.com/pdfs/wtbu/OMAP34x_ES3.1.x_PUBLIC_TRM_vzU.zip
2. Table 4-72 "Sleep Dependencies" of the OMAP34xx TRM Rev. ZU
(SWPU223U)
3. ibid.
Cc: Tony Lindgren <tony@atomide.com>
Cc: Vaibhav Hiremath <hvaibhav@ti.com>
Cc: Benoît Cousson <b-cousson@ti.com>
Cc: Tero Kristo <t-kristo@ti.com>
Tested-by: Kevin Hilman <khilman@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Kevin Hilman <khilman@ti.com>
Bjørn Mork [Mon, 2 Jul 2012 08:33:14 +0000 (10:33 +0200)]
USB: cdc-wdm: fix lockup on error in wdm_read
Clear the WDM_READ flag on empty reads to avoid running
forever in an infinite tight loop, causing lockups:
Jul 1 21:58:11 nemi kernel: [ 3658.898647] qmi_wwan 2-1:1.2: Unexpected error -71
Jul 1 21:58:36 nemi kernel: [ 3684.072021] BUG: soft lockup - CPU#0 stuck for 23s! [qmi.pl:12235]
Jul 1 21:58:36 nemi kernel: [ 3684.072212] CPU 0
Jul 1 21:58:36 nemi kernel: [ 3684.072355]
Jul 1 21:58:36 nemi kernel: [ 3684.072367] Pid: 12235, comm: qmi.pl Tainted: P O 3.5.0-rc2+ #13 LENOVO 2776LEG/2776LEG
Jul 1 21:58:36 nemi kernel: [ 3684.072383] RIP: 0010:[<
ffffffffa0635008>] [<
ffffffffa0635008>] spin_unlock_irq+0x8/0xc [cdc_wdm]
Jul 1 21:58:36 nemi kernel: [ 3684.072388] RSP: 0018:
ffff88022dca1e70 EFLAGS:
00000282
Jul 1 21:58:36 nemi kernel: [ 3684.072393] RAX:
ffff88022fc3f650 RBX:
ffffffff811c56f7 RCX:
00000001000ce8c1
Jul 1 21:58:36 nemi kernel: [ 3684.072398] RDX:
0000000000000010 RSI:
000000000267d810 RDI:
ffff88022fc3f650
Jul 1 21:58:36 nemi kernel: [ 3684.072403] RBP:
ffff88022dca1eb0 R08:
ffffffffa063578e R09:
0000000000000000
Jul 1 21:58:36 nemi kernel: [ 3684.072407] R10:
0000000000000008 R11:
0000000000000246 R12:
0000000000000002
Jul 1 21:58:36 nemi kernel: [ 3684.072412] R13:
0000000000000246 R14:
ffffffff00000002 R15:
ffff8802281d8c88
Jul 1 21:58:36 nemi kernel: [ 3684.072418] FS:
00007f666a260700(0000) GS:
ffff88023bc00000(0000) knlGS:
0000000000000000
Jul 1 21:58:36 nemi kernel: [ 3684.072423] CS: 0010 DS: 0000 ES: 0000 CR0:
0000000080050033
Jul 1 21:58:36 nemi kernel: [ 3684.072428] CR2:
000000000270d9d8 CR3:
000000022e865000 CR4:
00000000000007f0
Jul 1 21:58:36 nemi kernel: [ 3684.072433] DR0:
0000000000000000 DR1:
0000000000000000 DR2:
0000000000000000
Jul 1 21:58:36 nemi kernel: [ 3684.072438] DR3:
0000000000000000 DR6:
00000000ffff0ff0 DR7:
0000000000000400
Jul 1 21:58:36 nemi kernel: [ 3684.072444] Process qmi.pl (pid: 12235, threadinfo
ffff88022dca0000, task
ffff88022ff76380)
Jul 1 21:58:36 nemi kernel: [ 3684.072448] Stack:
Jul 1 21:58:36 nemi kernel: [ 3684.072458]
ffffffffa063592e 0000000100020000 ffff88022fc3f650 ffff88022fc3f6a8
Jul 1 21:58:36 nemi kernel: [ 3684.072466]
0000000000000200 0000000100000000 000000000267d810 0000000000000000
Jul 1 21:58:36 nemi kernel: [ 3684.072475]
0000000000000000 ffff880212cfb6d0 0000000000000200 ffff880212cfb6c0
Jul 1 21:58:36 nemi kernel: [ 3684.072479] Call Trace:
Jul 1 21:58:36 nemi kernel: [ 3684.072489] [<
ffffffffa063592e>] ? wdm_read+0x1a0/0x263 [cdc_wdm]
Jul 1 21:58:36 nemi kernel: [ 3684.072500] [<
ffffffff8110adb7>] ? vfs_read+0xa1/0xfb
Jul 1 21:58:36 nemi kernel: [ 3684.072509] [<
ffffffff81040589>] ? alarm_setitimer+0x35/0x64
Jul 1 21:58:36 nemi kernel: [ 3684.072517] [<
ffffffff8110aec7>] ? sys_read+0x45/0x6e
Jul 1 21:58:36 nemi kernel: [ 3684.072525] [<
ffffffff813725f9>] ? system_call_fastpath+0x16/0x1b
Jul 1 21:58:36 nemi kernel: [ 3684.072557] Code: <66> 66 90 c3 83 ff ed 89 f8 74 16 7f 06 83 ff a1 75 0a c3 83 ff f4
The WDM_READ flag is normally cleared by wdm_int_callback
before resubmitting the read urb, and set by wdm_in_callback
when this urb returns with data or an error. But a crashing
device may cause both a read error and cancelling all urbs.
Make sure that the flag is cleared by wdm_read if the buffer
is empty.
We don't clear the flag on errors, as there may be pending
data in the buffer which should be processed. The flag will
instead be cleared on the next wdm_read call.
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Acked-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Johan Hovold [Mon, 2 Jul 2012 10:34:24 +0000 (12:34 +0200)]
USB: metro-usb: fix tty_flip_buffer_push use
Do not set low_latency flag at open as tty_flip_buffer_push must not be
called in IRQ context with low_latency set.
Cc: stable@vger.kernel.org
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Gaosen Zhang [Thu, 5 Jul 2012 13:49:00 +0000 (21:49 +0800)]
USB: option: Add MEDIATEK product ids
Signed-off-by: Gaosen Zhang <gaosen.zhang@mediatek.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Bjørn Mork [Mon, 2 Jul 2012 17:53:55 +0000 (19:53 +0200)]
USB: option: add ZTE MF60
Switches into a composite device by ejecting the initial
driver CD. The four interfaces are: QCDM, AT, QMI/wwan
and mass storage. Let this driver manage the two serial
interfaces:
T: Bus=02 Lev=01 Prnt=01 Port=01 Cnt=01 Dev#= 28 Spd=480 MxCh= 0
D: Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1
P: Vendor=19d2 ProdID=1402 Rev= 0.00
S: Manufacturer=ZTE,Incorporated
S: Product=ZTE WCDMA Technologies MSM
S: SerialNumber=xxxxx
C:* #Ifs= 4 Cfg#= 1 Atr=c0 MxPwr=500mA
I:* If#= 0 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=option
E: Ad=81(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E: Ad=01(O) Atr=02(Bulk) MxPS= 512 Ivl=4ms
I:* If#= 1 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=option
E: Ad=82(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E: Ad=02(O) Atr=02(Bulk) MxPS= 512 Ivl=4ms
I:* If#= 2 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=ff Driver=qmi_wwan
E: Ad=83(I) Atr=03(Int.) MxPS= 64 Ivl=2ms
E: Ad=84(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E: Ad=03(O) Atr=02(Bulk) MxPS= 512 Ivl=4ms
I:* If#= 3 Alt= 0 #EPs= 2 Cls=08(stor.) Sub=06 Prot=50 Driver=usb-storage
E: Ad=04(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E: Ad=85(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Greg Kroah-Hartman [Thu, 5 Jul 2012 22:49:47 +0000 (15:49 -0700)]
Merge tag 'for-usb-linus-2012-07-02' of git://git./linux/kernel/git/sarah/xhci into usb-linus
xhci: Fix driver hang and resume error path.
Hi Greg,
Here's two bug fixes for 3.5. The first fixes an issue with port
connections not being reported to the USB core after a system resume.
The second fixes a driver hang when there are two back to back stalls on
an endpoint.
Sarah Sharp
Linus Torvalds [Thu, 5 Jul 2012 20:20:02 +0000 (13:20 -0700)]
Merge tag 'fixes-for-linus' of git://git./linux/kernel/git/arm/arm-soc
Pull ARM SoC fixes from Arnd Bergmann:
"Small fixes on multiple ARM platforms
- A build regression from a previous fix on dove and mv78xx0
- Two fixes for recently (3.5-rc1) changed mmp/pxa code
- multiple omap2+ bug fixes
- two trivial fixes for i.MX
- one v3.5 regression for mxs"
* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
ARM: apx4devkit: fix FEC enabling PHY clock
ARM: OMAP2+: hwmod data: Fix wrong McBSP clock alias on OMAP4
ARM: OMAP4: hwmod data: temporarily comment out data for the usb_host_fs and aess IP blocks
ARM: Orion: Fix WDT compile for Dove and MV78xx0
ARM: mmp: remove mach/gpio-pxa.h
ARM: imx: assert SCC gate stays enabled
ARM: OMAP4: TWL6030: ensure sys_nirq1 is mux'd and wakeup enabled
ARM: OMAP2: Overo: init I2C before MMC to fix MMC suspend/resume failure
ARM: imx27_visstrim_m10: Do not include <asm/system.h>
ARM: pxa: hx4700: Fix basic suspend/resume
Linus Torvalds [Thu, 5 Jul 2012 20:16:21 +0000 (13:16 -0700)]
Merge git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull KVM fix from Marcelo Tosatti:
"Memory leak and oops on the x86 mmu code, and sanitization of the
KVM_IRQFD ioctl."
* git://git.kernel.org/pub/scm/virt/kvm/kvm:
KVM: MMU: fix shrinking page from the empty mmu
KVM: fix fault page leak
KVM: Sanitize KVM_IRQFD flags
KVM: Add missing KVM_IRQFD API documentation
KVM: Pass kvm_irqfd to functions
Linus Torvalds [Thu, 5 Jul 2012 20:09:37 +0000 (13:09 -0700)]
Merge branch 'fixes-for-3.5' of git://git./linux/kernel/git/cooloney/linux-leds
Pull leds fix from Bryan Wu:
"Fix for heartbeat led trigger driver"
* 'fixes-for-3.5' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/linux-leds:
leds: heartbeat: fix bug on panic
Linus Torvalds [Thu, 5 Jul 2012 20:06:25 +0000 (13:06 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/mason/linux-btrfs
Pull btrfs updates from Chris Mason:
"I held off on my rc5 pull because I hit an oops during log recovery
after a crash. I wanted to make sure it wasn't a regression because
we have some logging fixes in here.
It turns out that a commit during the merge window just made it much
more likely to trigger directory logging instead of full commits,
which exposed an old bug.
The new backref walking code got some additional fixes. This should
be the final set of them.
Josef fixed up a corner where our O_DIRECT writes and buffered reads
could expose old file contents (not stale, just not the most recent).
He and Liu Bo fixed crashes during tree log recover as well.
Ilya fixed errors while we resume disk balancing operations on
readonly mounts."
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs:
Btrfs: run delayed directory updates during log replay
Btrfs: hold a ref on the inode during writepages
Btrfs: fix tree log remove space corner case
Btrfs: fix wrong check during log recovery
Btrfs: use _IOR for BTRFS_IOC_SUBVOL_GETFLAGS
Btrfs: resume balance on rw (re)mounts properly
Btrfs: restore restriper state on all mounts
Btrfs: fix dio write vs buffered read race
Btrfs: don't count I/O statistic read errors for missing devices
Btrfs: resolve tree mod log locking issue in btrfs_next_leaf
Btrfs: fix tree mod log rewind of ADD operations
Btrfs: leave critical region in btrfs_find_all_roots as soon as possible
Btrfs: always put insert_ptr modifications into the tree mod log
Btrfs: fix tree mod log for root replacements at leaf level
Btrfs: support root level changes in __resolve_indirect_ref
Btrfs: avoid waiting for delayed refs when we must not
Linus Torvalds [Thu, 5 Jul 2012 18:53:47 +0000 (11:53 -0700)]
Merge branch 'fixes-for-grant' of git://sources.calxeda.com/kernel/linux
Pull DT fixes from Rob Herring:
"Mainly some documentation updates and 2 fixes:
- An export symbol fix for of_platform_populate from Stephen W.
- A fix for the order compatible entries are matched to ensure the
first compatible string is matched when there are multiple matches."
Normally these would go through Grant Likely (thus the "fixes-for-grant"
branch name), but Grant is in the middle of moving to Scotland, and is
practically offline until sometime in August. So pull directly from Rob.
* 'fixes-for-grant' of git://sources.calxeda.com/kernel/linux:
of: match by compatible property first
dt: mc13xxx.txt: Fix gpio number assignment
dt: fsl-fec.txt: Fix gpio number assignment
dt: fsl-mma8450.txt: Add missing 'reg' description
dt: fsl-imx-esdhc.txt: Fix gpio number assignment
dt: fsl-imx-cspi.txt: Fix comment about GPIOs used for chip selects
of: Add Avionic Design vendor prefix
of: export of_platform_populate()
Laxman Dewangan [Wed, 4 Jul 2012 15:06:45 +0000 (20:36 +0530)]
gpio: tps65910: initialize of_node of gpio_chip
Initialize the gpio chip's of_node to the device's node
to work with DT based system.
Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Uwe Kleine-König [Wed, 6 Jun 2012 09:49:23 +0000 (11:49 +0200)]
gpio/mxc: make irqs work for fsl,imx21-gpio devices
The chained handler was set for the platform device with id == 0.
When the gpio devices are instantiated by a device tree, all have id ==
-1 and so the handler was unset resulting in unusable gpio irqs on
i.MX21 and i.MX27 (when using oftree).
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Cc: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Laxman Dewangan [Wed, 20 Jun 2012 08:44:05 +0000 (14:14 +0530)]
gpio: fix bits conflict for gpio flags
The bit 2 and 3 in GPIO flag are allocated for the
flag OPEN_DRAIN/OPEN_SOURCE. These bits are reused
for the flag EXPORT/EXPORT_CHANGEABLE and so creating
conflict.
Fix this conflict by assigning bit 4 and 5 for the
flag EXPORT/EXPORT_CHANGEABLE.
Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Roland Stigge [Mon, 18 Jun 2012 09:28:26 +0000 (11:28 +0200)]
mips: pci-lantiq: Fix check for valid gpio
This patch fixes two checks for valid gpio number, formerly (wrongly)
considering zero as invalid, now using gpio_is_valid().
Signed-off-by: Roland Stigge <stigge@antcom.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Stephen Warren [Thu, 7 Jun 2012 23:56:09 +0000 (17:56 -0600)]
gpio: export devm_gpio_request_one
Without this, modules can't use this API, leading to build failures.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Mark Brown [Sat, 9 Jun 2012 03:07:56 +0000 (11:07 +0800)]
gpiolib: wm8994: Pay attention to the value set when enabling as output
Not paying attention to the value being set is a bad thing because it
means that we'll not set the hardware up to reflect what was requested.
Not setting the hardware up to reflect what was requested means that the
caller won't get the results they wanted.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: stable@vger.kernel.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Christian Dietrich [Thu, 31 May 2012 11:12:57 +0000 (13:12 +0200)]
gpio/msm_v1: CONFIG_GPIO_MSM_V1 is only available on three SoCs
The feature GPIO_MSM_V1 is only available on three SoCs. On all other MSM SoCs
the INT_GPIO_GROUP{1,2} is undeclared, but Kconfig does allow such
configurations. Therefore the produced configuration is valid, but does not
compile. The problem is fixed by adding the missing Kconfig constraints.
drivers/gpio/gpio-msm-v1.c: In function â\80\98msm_init_gpioâ\80\99:
drivers/gpio/gpio-msm-v1.c:629:26: error: 'INT_GPIO_GROUP1' undeclared
drivers/gpio/gpio-msm-v1.c:630:26: error: 'INT_GPIO_GROUP2' undeclared
Signed-off-by: Christian Dietrich <christian.dietrich@informatik.uni-erlangen.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Alessandro Rubini [Sun, 27 May 2012 20:55:41 +0000 (22:55 +0200)]
gpio-sta2x11: don't use pdata if null
If there is no platform data available, the driver shouldn't use the
pointer or it will oops. Since things will mostly work nonetheless,
(the BIOS may have set up the pins properly), I'd better not fail the
probe even in this case.
Signed-off-by: Alessandro Rubini <rubini@gnudd.com>
Acked-by: Giancarlo Asnaghi <giancarlo.asnaghi@st.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Russell King [Thu, 5 Jul 2012 12:11:31 +0000 (13:11 +0100)]
ARM: fix warning caused by wrongly typed arm_dma_limit
arch/arm/mm/init.c: In function 'arm_memblock_init':
arch/arm/mm/init.c:380: warning: comparison of distinct pointer types lacks a cast
by fixing the typecast in its definition when DMA_ZONE is disabled.
This was missed in
4986e5c7c (ARM: mm: fix type of the arm_dma_limit
global variable).
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Russell King [Thu, 5 Jul 2012 12:06:32 +0000 (13:06 +0100)]
ARM: fix warnings about atomic64_read
Fix:
net/netfilter/xt_connbytes.c: In function 'connbytes_mt':
net/netfilter/xt_connbytes.c:43: warning: passing argument 1 of 'atomic64_read' discards qualifiers from pointer target type
...
by adding the missing const.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Rabin Vincent [Wed, 4 Jul 2012 06:37:37 +0000 (07:37 +0100)]
ARM: 7440/1: kprobes: only test 'sub pc, pc, #1b-2b+8-2' on ARMv6
'sub pc, pc, #1b-2b+8-2' results in address<1:0> == '10'.
sub pc, pc, #const (== ADR pc, #const) performs an interworking branch
(BXWritePC()) on ARMv7+ and a simple branch (BranchWritePC()) on earlier
versions.
In ARM state, BXWritePC() is UNPREDICTABLE when address<1:0> == '10'.
In ARM state on ARMv6+, BranchWritePC() ignores address<1:0>. Before
ARMv6, BranchWritePC() is UNPREDICTABLE if address<1:0> != '00'
So the instruction is UNPREDICTABLE both before and after v6.
Acked-by: Jon Medhurst <tixy@yxit.co.uk>
Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Arnd Bergmann [Thu, 5 Jul 2012 10:16:13 +0000 (12:16 +0200)]
Merge tag 'omap-fixes-for-v3.5-rc5' of git://git./linux/kernel/git/tmlind/linux-omap into fixes
PM related fixes for omaps mostly to get suspend/resume
working again.
* tag 'omap-fixes-for-v3.5-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
ARM: OMAP2+: hwmod data: Fix wrong McBSP clock alias on OMAP4
ARM: OMAP4: hwmod data: temporarily comment out data for the usb_host_fs and aess IP blocks
ARM: OMAP4: TWL6030: ensure sys_nirq1 is mux'd and wakeup enabled
ARM: OMAP2: Overo: init I2C before MMC to fix MMC suspend/resume failure
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Arnd Bergmann [Thu, 5 Jul 2012 09:06:36 +0000 (11:06 +0200)]
Merge branch 'mxs/fixes-for-3.5' of git://git.linaro.org/people/shawnguo/linux-2.6 into fixes
* 'mxs/fixes-for-3.5' of git://git.linaro.org/people/shawnguo/linux-2.6:
ARM: apx4devkit: fix FEC enabling PHY clock
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Will Deacon [Wed, 4 Jul 2012 17:15:42 +0000 (18:15 +0100)]
ARM: 7441/1: perf: return -EOPNOTSUPP if requested mode exclusion is unavailable
We currently return -EPERM if the user requests mode exclusion that is
not supported by the CPU. This looks pretty confusing from userspace
and is inconsistent with other architectures (ppc, x86).
This patch returns -EOPNOTSUPP instead.
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Will Deacon [Wed, 4 Jul 2012 17:17:16 +0000 (18:17 +0100)]
ARM: 7443/1: Revert "new way of handling ERESTART_RESTARTBLOCK"
This reverts commit
6b5c8045ecc7e726cdaa2a9d9c8e5008050e1252.
Conflicts:
arch/arm/kernel/ptrace.c
The new syscall restarting code can lead to problems if we take an
interrupt in userspace just before restarting the svc instruction. If
a signal is delivered when returning from the interrupt, the
TIF_SYSCALL_RESTARTSYS will remain set and cause any syscalls executed
from the signal handler to be treated as a restart of the previously
interrupted system call. This includes the final sigreturn call, meaning
that we may fail to exit from the signal context. Furthermore, if a
system call made from the signal handler requires a restart via the
restart_block, it is possible to clear the thread flag and fail to
restart the originally interrupted system call.
The right solution to this problem is to perform the restarting in the
kernel, avoiding the possibility of handling a further signal before the
restart is complete. Since we're almost at -rc6, let's revert the new
method for now and aim for in-kernel restarting at a later date.
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Will Deacon [Wed, 4 Jul 2012 17:16:30 +0000 (18:16 +0100)]
ARM: 7442/1: Revert "remove unused restart trampoline"
This reverts commit
fa18484d0947b976a769d15c83c50617493c81c1.
We need the restart trampoline back so that we can revert a related
problematic patch
6b5c8045ecc7e726cdaa2a9d9c8e5008050e1252 ("arm: new
way of handling ERESTART_RESTARTBLOCK").
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Russell King [Wed, 4 Jul 2012 16:05:28 +0000 (17:05 +0100)]
ARM: fix set_domain() macro
Avoid polluting drivers with a set_domain() macro, which interferes with
structure member names:
drivers/net/wireless/ath/ath9k/dfs_pattern_detector.c:294:33: error: macro "set_domain" passed 2 arguments, but takes just 1
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Junxiao Bi [Wed, 27 Jun 2012 09:09:54 +0000 (17:09 +0800)]
aio: make kiocb->private NUll in init_sync_kiocb()
Ocfs2 uses kiocb.*private as a flag of unsigned long size. In
commit
a11f7e6 ocfs2: serialize unaligned aio, the unaligned
io flag is involved in it to serialize the unaligned aio. As
*private is not initialized in init_sync_kiocb() of do_sync_write(),
this unaligned io flag may be unexpectly set in an aligned dio.
And this will cause OCFS2_I(inode)->ip_unaligned_aio decreased
to -1 in ocfs2_dio_end_io(), thus the following unaligned dio
will hang forever at ocfs2_aiodio_wait() in ocfs2_file_aio_write().
Signed-off-by: Junxiao Bi <junxiao.bi@oracle.com>
Cc: stable@vger.kernel.org
Acked-by: Jeff Moyer <jmoyer@redhat.com>
Signed-off-by: Joel Becker <jlbec@evilplan.org>
Tony Lindgren [Thu, 5 Jul 2012 08:12:08 +0000 (01:12 -0700)]
Merge tag 'omap-fixes-b-for-3.5rc' of git://git./linux/kernel/git/pjw/omap-pending into fixes
A few more OMAP fixes for 3.5-rc. These fix some bugs with power
management and McBSP.
Lauri Hintsala [Thu, 5 Jul 2012 07:31:36 +0000 (10:31 +0300)]
ARM: apx4devkit: fix FEC enabling PHY clock
Ethernet stopped to work after mxs clk framework change.
Signed-off-by: Lauri Hintsala <lauri.hintsala@bluegiga.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Lars-Peter Clausen [Wed, 4 Jul 2012 20:02:56 +0000 (13:02 -0700)]
Input: request threaded-only IRQs with IRQF_ONESHOT
Since commit
1c6c69525b ("genirq: Reject bogus threaded irq requests")
threaded IRQs without a primary handler need to be requested with
IRQF_ONESHOT, otherwise the request will fail. This patch adds the
IRQF_ONESHOT to input drivers where it is missing. Not modified by
this patch are those drivers where the requested IRQ will always be a
nested IRQ (e.g. because it's part of an MFD), since for this special
case IRQF_ONESHOT is not required to be specified when requesting the
IRQ.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Russell King [Wed, 4 Jul 2012 16:04:57 +0000 (17:04 +0100)]
ARM: fix mach-versatile/pci.c warning
arch/arm/mach-versatile/pci.c: In function 'versatile_map_irq':
arch/arm/mach-versatile/pci.c:342: warning: unused variable 'devslot'
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Benoit Cousson [Wed, 4 Jul 2012 12:55:29 +0000 (06:55 -0600)]
ARM: OMAP2+: hwmod data: Fix wrong McBSP clock alias on OMAP4
The commit
503d0ea24d1d3dd3db95e5e0edd693da7a2a23eb
ARM: OMAP4: hwmod data: Add aliases for McBSP fclk clocks
added a wrong "prcm_clk" alias for PRCM clock whereas the McBSP
driver and previous OMAPs are using "prcm_fck".
It thus lead to the following warning.
[ 47.409729] omap-mcbsp: clks: could not clk_get() prcm_fck
Fix that by changing the opt_clk role to prcm_fck.
Reported-by: Misael Lopez Cruz <misael.lopez@ti.com>
Signed-off-by: Benoit Cousson <b-cousson@ti.com>
Cc: Peter Ujfalusi <peter.ujfalusi@ti.com>
Tested-by: Sebastien Guiriec <s-guiriec@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
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