Commit Graph

362046 Commits

Author SHA1 Message Date
Shawn Guo
e91411b44d ARM: mxs: rename debug-macro.S for multiplatform build
Rename arch/arm/mach-mxs/include/mach/debug-macro.S to
arch/arm/include/debug/mxs.S for multiplatform build.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-04-04 21:15:57 +08:00
Shawn Guo
45680995cd ARM: mxs: call mxs_pm_init() as a machine_desc hook
The device_initcall is not a friend of multiplatform build.  Call
mxs_pm_init() as a machine_desc hook instead of device_initcall.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-04-04 21:15:57 +08:00
Fabio Estevam
e933a1a12a clocksource: mxs_timer: Add semicolon at end of line
Fix the following build error:

drivers/clocksource/mxs_timer.c:304:1: error: expected ',' or ';' at end of input

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-04-03 10:30:08 +08:00
Shawn Guo
0b48d3a6fb ARM: mxs: remove unused headers
Most of the stuff in the headers are used nowhere now.  Move a few
things that are useful for mach-mxs.c into there and remove the headers.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-04-01 20:42:23 +08:00
Shawn Guo
39490ab0ff ARM: mxs: merge imx23 and imx28 into one machine_desc
Most of the function hooks are same between imx23 and imx28
machine_desc, so merge them into one.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-04-01 20:42:21 +08:00
Shawn Guo
3cb7825bdc ARM: mxs: remove common.h
All three remaining functions declared in common.h are implemented by
clock driver.  Create header include/linux/clk/mxs.h to contain them
and remove common.h.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-04-01 20:42:20 +08:00
Shawn Guo
1bff2d76ac ARM: mxs: move mxs_get_ocotp() into mach-mxs.c
All the users of mxs_get_ocotp() are in mach-mxs.c.  Move the function
into mach-mxs.c, make it a static function, and then remove ocotp.c.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-04-01 20:42:19 +08:00
Shawn Guo
0265b6cbfe ARM: mxs: remove mm.c
The static mapping is used nowhere now.  Hence mm.c can be removed
completely.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-04-01 20:42:18 +08:00
Shawn Guo
1f629564d0 ARM: mxs: use debug_ll_io_init for low-level debug
The only user of the static mapping done in mx23_map_io and mx28_map_io
is low-level debug now.  Use debug_ll_io_init() instead, so that the
static mapping is used nowhere and can be removed completely later.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-04-01 20:42:17 +08:00
Shawn Guo
69d75a02db ARM: mxs: get ocotp base address from device tree
Instead of using the static definitions, get ocotp base address from
device tree with mapping.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-04-01 20:42:16 +08:00
Shawn Guo
974a9af532 ARM: mxs: remove system.c
There is no user of function mxs_reset_block() now.  Let's move
mxs_restart() into mach-mxs.c as a static function and remove system.c
completely.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-04-01 20:42:15 +08:00
Shawn Guo
8f7cf8815f ARM: mxs: get reset address from device tree
Instead of using static address definition, get reset address from
device tree with mapping, so that core_initcall mxs_arch_reset_init()
can be killed.

The "rtc" clock code in mxs_arch_reset_init() seems to be zombie, since
there is no clk lookup defined in clock driver at all.  Remove it
together.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-04-01 20:42:13 +08:00
Shawn Guo
c226221359 ARM: mxs: remove empty hardware.h
The hardware.h is an empty header and used nowhere now.  Remmove it.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-04-01 20:42:12 +08:00
Shawn Guo
114fe75def ASoC: mxs-saif: remove mach header inclusion
The header <mach/hardware.h> is not needed at all, and <mach/mxs.h> is
needed only for macros MXS_SET_ADDR and MXS_CLR_ADDR.  Define the macros
and remove the mach header inclusions.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-04-01 20:41:59 +08:00
Shawn Guo
987869aa4a iio: mxs-lradc: remove unneeded mach header inclusion
Headers <mach/mxs.h> and <mach/common.h> are not used in the driver
at all.  Removed the inclusions.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Jonathan Cameron <jic23@kernel.org>
2013-04-01 16:30:05 +08:00
Shawn Guo
36d1da1d15 rtc: stmp3xxx: use stmp_reset_block() instead
The function stmp_reset_block() provides the exactly same functionality
as mxs_reset_block().  So use stmp_reset_block() instead, so that
<mach/common.h> inclusion can be removed.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: rtc-linux@googlegroups.com
2013-04-01 16:30:05 +08:00
Shawn Guo
0c672aae28 clk: mxs: remove the use of mach level IO accessor
It removes the use of mach level IO accessor __mxs_setl/clrl, and hence
removes mach header inclusion from clock driver.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Mike Turquette <mturquette@linaro.org>
2013-04-01 16:30:04 +08:00
Shawn Guo
38d6590f0f clk: mxs: get base address from device tree
Instead of using the static definitions, get clkctrl and digctl base
addresses with mapping from device tree.

Use macro on variable is not nice, but it's done here to save huge
pointless diff stat.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Mike Turquette <mturquette@linaro.org>
2013-04-01 16:30:04 +08:00
Shawn Guo
2835705c8a ARM: mxs: remove unneeded mach-types.h inclusion
Remove the unneeded mach-types.h inclusion from mxs.h, which is a
leftover from commit 845da6b (ARM: mxs: detect SoC by checking CHIPID
register).

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-04-01 16:30:04 +08:00
Shawn Guo
6a8e95b071 ARM: mxs: move icoll driver into drivers/irqchip
Move icoll.c into drivers/irqchip as irq-mxs.c, and along with the
renaming, change the driver to use IRQCHIP_DECLARE.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-04-01 16:30:04 +08:00
Shawn Guo
cec6bae8ca ARM: mxs: call stmp_reset_block() in icoll
Call stmp_reset_block() rather than mxs_reset_block(), so that
<mach/common.h> inclusion can be removed from icoll driver.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-04-01 16:30:03 +08:00
Shawn Guo
8256aa7129 ARM: mxs: get icoll base address from device tree
Rather than using the static definition, it gets icoll base address
with mapping from device tree.

As the result, <mach/mxs.h> inclusion can be removed from the driver
now.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-04-01 16:30:03 +08:00
Shawn Guo
c74512bf83 ARM: mxs: move timer driver into drivers/clocksource
Move mxs timer driver into drivers/clocksource as mxs_timer.c.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-04-01 16:30:03 +08:00
Shawn Guo
7a9c39f787 ARM: mxs: select STMP_DEVICE and use it for timer code
Select STMP_DEVICE and in timer code replace mxs_reset_block() with
stmp_reset_block(), use STMP_OFFSET_REG_SET/CLR to replace
__mxs_setl/clrl.

As the result, <mach/mxs.h> and <mach/common.h> includsion can be
removed from timer.c now.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-04-01 16:30:02 +08:00
Shawn Guo
220d2f269a ARM: mxs: remove cpu_is_mx23() call from timer code
Remove cpu_is_mx23() call from timer code by using
of_device_is_compatible() instead.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-04-01 16:30:02 +08:00
Shawn Guo
be35bd2bcd ARM: mxs: get timrot base address from device tree
Instead of using static defines, it gets timrot base address with
mapping from device tree.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-04-01 16:30:02 +08:00
Shawn Guo
2efb950465 ARM: mxs: look up timrot clock from device tree
Change call clk_get_sys() to of_clk_get() to look up timrot clock from
device tree, so that the clk_register_clkdev() call for timrot can be
saved in clock driver.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-04-01 16:30:02 +08:00
Shawn Guo
633ef4c7d1 ARM: mxs: use CLKSRC_OF helper to initialize timer
Select CLKSRC_OF and use clocksource_of_init() to initialize timer, so
that the call to mxs_timer_init() in clock driver can be removed.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-04-01 16:30:01 +08:00
Shawn Guo
3ed628a812 Merge remote-tracking branch 'arm-soc/clksrc/cleanup' into mxs/cleanup 2013-04-01 16:29:56 +08:00
Linus Torvalds
07961ac7c0 Linux 3.9-rc5 2013-03-31 15:12:43 -07:00
Linus Torvalds
0bb44280b5 Merge branch 'fixes' of git://git.infradead.org/users/vkoul/slave-dma
Pull slave-dmaengine fixes from Vinod Koul:
 "Two fixes for slave-dmaengine.

  The first one is for making slave_id value correct for dw_dmac and
  the other one fixes the endieness in DT parsing"

* 'fixes' of git://git.infradead.org/users/vkoul/slave-dma:
  dw_dmac: adjust slave_id accordingly to request line base
  dmaengine: dw_dma: fix endianess for DT xlate function
2013-03-31 11:41:47 -07:00
Linus Torvalds
a7b436d356 Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
Pull media fixes from Mauro Carvalho Chehab:
 "For a some fixes for Kernel 3.9:
   - subsystem build fix when VIDEO_DEV=y, VIDEO_V4L2=m and I2C=m
   - compilation fix for arm multiarch preventing IR_RX51 to be selected
   - regression fix at bttv crop logic
   - s5p-mfc/m5mols/exynos: a few fixes for cameras on exynos hardware"

* 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media:
  [media] [REGRESSION] bt8xx: Fix too large height in cropcap
  [media] fix compilation with both V4L2 and I2C as 'm'
  [media] m5mols: Fix bug in stream on handler
  [media] s5p-fimc: Do not attempt to disable not enabled media pipeline
  [media] s5p-mfc: Fix encoder control 15 issue
  [media] s5p-mfc: Fix frame skip bug
  [media] s5p-fimc: send valid m2m ctx to fimc_m2m_job_finish
  [media] exynos-gsc: send valid m2m ctx to gsc_m2m_job_finish
  [media] fimc-lite: Fix the variable type to avoid possible crash
  [media] fimc-lite: Initialize 'step' field in fimc_lite_ctrl structure
  [media] ir: IR_RX51 only works on OMAP2
2013-03-31 11:40:33 -07:00
Linus Torvalds
d299c29039 for-linus-20130331
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Merge tag 'for-linus-20130331' of git://git.kernel.dk/linux-block

Pull block fixes from Jens Axboe:
 "Alright, this time from 10K up in the air.

  Collection of fixes that have been queued up since the merge window
  opened, hence postponed until later in the cycle.  The pull request
  contains:

   - A bunch of fixes for the xen blk front/back driver.

   - A round of fixes for the new IBM RamSan driver, fixing various
     nasty issues.

   - Fixes for multiple drives from Wei Yongjun, bad handling of return
     values and wrong pointer math.

   - A fix for loop properly killing partitions when being detached."

* tag 'for-linus-20130331' of git://git.kernel.dk/linux-block: (25 commits)
  mg_disk: fix error return code in mg_probe()
  rsxx: remove unused variable
  rsxx: enable error return of rsxx_eeh_save_issued_dmas()
  block: removes dynamic allocation on stack
  Block: blk-flush: Fixed indent code style
  cciss: fix invalid use of sizeof in cciss_find_cfgtables()
  loop: cleanup partitions when detaching loop device
  loop: fix error return code in loop_add()
  mtip32xx: fix error return code in mtip_pci_probe()
  xen-blkfront: remove frame list from blk_shadow
  xen-blkfront: pre-allocate pages for requests
  xen-blkback: don't store dev_bus_addr
  xen-blkfront: switch from llist to list
  xen-blkback: fix foreach_grant_safe to handle empty lists
  xen-blkfront: replace kmalloc and then memcpy with kmemdup
  xen-blkback: fix dispatch_rw_block_io() error path
  rsxx: fix missing unlock on error return in rsxx_eeh_remap_dmas()
  Adding in EEH support to the IBM FlashSystem 70/80 device driver
  block: IBM RamSan 70/80 error message bug fix.
  block: IBM RamSan 70/80 branding changes.
  ...
2013-03-31 11:38:59 -07:00
Paul Walmsley
dbf520a9d7 Revert "lockdep: check that no locks held at freeze time"
This reverts commit 6aa9707099.

Commit 6aa9707099 ("lockdep: check that no locks held at freeze time")
causes problems with NFS root filesystems.  The failures were noticed on
OMAP2 and 3 boards during kernel init:

  [ BUG: swapper/0/1 still has locks held! ]
  3.9.0-rc3-00344-ga937536 #1 Not tainted
  -------------------------------------
  1 lock held by swapper/0/1:
   #0:  (&type->s_umount_key#13/1){+.+.+.}, at: [<c011e84c>] sget+0x248/0x574

  stack backtrace:
    rpc_wait_bit_killable
    __wait_on_bit
    out_of_line_wait_on_bit
    __rpc_execute
    rpc_run_task
    rpc_call_sync
    nfs_proc_get_root
    nfs_get_root
    nfs_fs_mount_common
    nfs_try_mount
    nfs_fs_mount
    mount_fs
    vfs_kern_mount
    do_mount
    sys_mount
    do_mount_root
    mount_root
    prepare_namespace
    kernel_init_freeable
    kernel_init

Although the rootfs mounts, the system is unstable.  Here's a transcript
from a PM test:

  http://www.pwsan.com/omap/testlogs/test_v3.9-rc3/20130317194234/pm/37xxevm/37xxevm_log.txt

Here's what the test log should look like:

  http://www.pwsan.com/omap/testlogs/test_v3.8/20130218214403/pm/37xxevm/37xxevm_log.txt

Mailing list discussion is here:

  http://lkml.org/lkml/2013/3/4/221

Deal with this for v3.9 by reverting the problem commit, until folks can
figure out the right long-term course of action.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: Mandeep Singh Baines <msb@chromium.org>
Cc: Jeff Layton <jlayton@redhat.com>
Cc: Shawn Guo <shawn.guo@linaro.org>
Cc: <maciej.rutecki@gmail.com>
Cc: Fengguang Wu <fengguang.wu@intel.com>
Cc: Trond Myklebust <Trond.Myklebust@netapp.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Ben Chan <benchan@chromium.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: Rafael J. Wysocki <rjw@sisk.pl>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-03-31 11:38:33 -07:00
Linus Torvalds
13d2080db3 Merge git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending
Pull SCSI target fixes from Nicholas Bellinger:
 "This includes the bug-fix for a >= v3.8-rc1 regression specific to
  iscsi-target persistent reservation conflict handling (CC'ed to
  stable), and a tcm_vhost patch to drop VIRTIO_RING_F_EVENT_IDX usage
  so that in-flight qemu vhost-scsi-pci device code can detect the
  proper vhost feature bits.

  Also, there are two more tcm_vhost patches still being discussed by
  MST and Asias for v3.9 that will be required for the in-flight qemu
  vhost-scsi-pci device patch to function properly, and that should
  (hopefully) be the last target fixes for this round."

* git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending:
  target: Fix RESERVATION_CONFLICT status regression for iscsi-target special case
  tcm_vhost: Avoid VIRTIO_RING_F_EVENT_IDX feature bit
2013-03-30 13:13:05 -07:00
Andy Shevchenko
bce95c63ef dw_dmac: adjust slave_id accordingly to request line base
On some hardware configurations we have got the request line with the offset.
The patch introduces convert_slave_id() helper for that cases. The request line
base is came from the driver data provided by the platform_device_id table.

Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2013-03-30 04:34:07 +05:30
Arnd Bergmann
f73bb9b355 dmaengine: dw_dma: fix endianess for DT xlate function
As reported by Wu Fengguang's build robot tracking sparse warnings, the
dma_spec arguments in the dw_dma_xlate are already byte swapped on
little-endian platforms and must not get swapped again. This code is
currently not used anywhere, but will be used in Linux 3.10 when the
ARM SPEAr platform starts using the generic DMA DT binding.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2013-03-30 04:34:07 +05:30
Rafael J. Wysocki
46a1f21a67 PNP: List Rafael Wysocki as a maintainer
The Adam Belay's e-mail address in MAINTAINERS under PNP SUPPORT
is not valid any more and I started to maintain that code in the
meantime as a matter of fact, so list myself as a maintainer of it
along with Bjorn and remove the Adam's entry from it.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-03-29 15:28:33 -07:00
Linus Torvalds
b92eded4b7 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client
Pull ceph fix from Sage Weil:
 "This fixes a regression introduced during the last merge window when
  mapping non-existent images."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client:
  rbd: don't zero-fill non-image object requests
2013-03-29 11:47:43 -07:00
Alex Elder
6e2a4505db rbd: don't zero-fill non-image object requests
A result of ENOENT from a read request for an object that's part of
an rbd image indicates that there is a hole in that portion of the
image.  Similarly, a short read for such an object indicates that
the remainder of the read should be interpreted a full read with
zeros filling out the end of the request.

This behavior is not correct for objects that are not backing rbd
image data.  Currently rbd_img_obj_request_callback() assumes it
should be done for all objects.

Change rbd_img_obj_request_callback() so it only does this zeroing
for image objects.  Encapsulate that special handling in its own
function.  Add an assertion that the image object request is a bio
request, since we assume that (and we currently don't support any
other types).

This resolves a problem identified here:
    http://tracker.ceph.com/issues/4559

The regression was introduced by bf0d5f503d.

Reported-by: Dan van der Ster <dan@vanderster.com>
Signed-off-by: Alex Elder <elder@inktank.com>
Reviewed-off-by: Sage Weil <sage@inktank.com>
2013-03-29 11:32:07 -07:00
Linus Torvalds
3615db41c4 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs
Pull btrfs fixes from Chris Mason:
 "We've had a busy two weeks of bug fixing.  The biggest patches in here
  are some long standing early-enospc problems (Josef) and a very old
  race where compression and mmap combine forces to lose writes (me).
  I'm fairly sure the mmap bug goes all the way back to the introduction
  of the compression code, which is proof that fsx doesn't trigger every
  possible mmap corner after all.

  I'm sure you'll notice one of these is from this morning, it's a small
  and isolated use-after-free fix in our scrub error reporting.  I
  double checked it here."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs:
  Btrfs: don't drop path when printing out tree errors in scrub
  Btrfs: fix wrong return value of btrfs_lookup_csum()
  Btrfs: fix wrong reservation of csums
  Btrfs: fix double free in the btrfs_qgroup_account_ref()
  Btrfs: limit the global reserve to 512mb
  Btrfs: hold the ordered operations mutex when waiting on ordered extents
  Btrfs: fix space accounting for unlink and rename
  Btrfs: fix space leak when we fail to reserve metadata space
  Btrfs: fix EIO from btrfs send in is_extent_unchanged for punched holes
  Btrfs: fix race between mmap writes and compression
  Btrfs: fix memory leak in btrfs_create_tree()
  Btrfs: fix locking on ROOT_REPLACE operations in tree mod log
  Btrfs: fix missing qgroup reservation before fallocating
  Btrfs: handle a bogus chunk tree nicely
  Btrfs: update to use fs_state bit
2013-03-29 11:13:25 -07:00
Len Brown
ed176886b6 ia64 idle: delete stale (*idle)() function pointer
Commit 3e7fc708eb ("ia64 idle: delete pm_idle") in 3.9-rc1 didn't
finish the job, leaving an un-initialized reference to (*idle)().

[ Haven't seen a crash from this - but seems like we are just being
  lucky that "idle" is zero so it does get initialized before we jump to
  randomland  - Len ]

Reported-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Len Brown <len.brown@intel.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-03-29 11:12:25 -07:00
Linus Torvalds
67e17c1100 Merge branch 'for-curr' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc
Pull arc architecture fixes from Vineet Gupta:
 "This includes fix for a serious bug in DMA mapping API, make
  allyesconfig wreckage, removal of bogus email-list placeholder in
  MAINTAINERS, a typo in ptrace helper code and last remaining changes
  for syscall ABI v3 which we are finally starting to transition-to
  internally.

  The request is late than I intended to - but I was held up with
  debugging a timer link list corruption, for which a proposed fix to
  generic timer code was sent out to lkml/tglx earlier today."

* 'for-curr' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc:
  ARC: Fix the typo in event identifier flags used by ptrace
  arc: fix dma_address assignment during dma_map_sg()
  ARC: Remove SET_PERSONALITY (tracks cross-arch change)
  ARC: ABIv3: fork/vfork wrappers not needed in "no-legacy-syscall" ABI
  ARC: ABIv3: Print the correct ABI ver
  ARC: make allyesconfig build breakages
  ARC: MAINTAINERS update for ARC
2013-03-29 11:00:43 -07:00
Josef Bacik
d8fe29e9de Btrfs: don't drop path when printing out tree errors in scrub
A user reported a panic where we were panicing somewhere in
tree_backref_for_extent from scrub_print_warning.  He only captured the trace
but looking at scrub_print_warning we drop the path right before we mess with
the extent buffer to print out a bunch of stuff, which isn't right.  So fix this
by dropping the path after we use the eb if we need to.  Thanks,

Cc: stable@vger.kernel.org
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
2013-03-29 10:18:59 -04:00
Nicholas Bellinger
f85eda8d75 target: Fix RESERVATION_CONFLICT status regression for iscsi-target special case
This patch fixes a regression introduced in v3.8-rc1 code where a failed
target_check_reservation() check in target_setup_cmd_from_cdb() was causing
an incorrect SAM_STAT_GOOD status to be returned during a WRITE operation
performed by an unregistered / unreserved iscsi initiator port.

This regression is only effecting iscsi-target due to a special case check
for TCM_RESERVATION_CONFLICT within iscsi_target_erl1.c:iscsit_execute_cmd(),
and was still correctly disallowing WRITE commands from backend submission
for unregistered / unreserved initiator ports, while returning the incorrect
SAM_STAT_GOOD status due to the missing SAM_STAT_RESERVATION_CONFLICT
assignment.

This regression was first introduced with:

commit de103c93af
Author: Christoph Hellwig <hch@lst.de>
Date:   Tue Nov 6 12:24:09 2012 -0800

    target: pass sense_reason as a return value

Go ahead and re-add the missing SAM_STAT_RESERVATION_CONFLICT assignment
during a target_check_reservation() failure, so that iscsi-target code
sends the correct SCSI status.

All other fabrics using target_submit_cmd_*() with a RESERVATION_CONFLICT
call to transport_generic_request_failure() are not effected by this bug.

Reported-by: Jeff Leung <jleung@curriegrad2004.ca>
Cc: Christoph Hellwig <hch@lst.de>
Cc: <stable@vger.kernel.org>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2013-03-28 23:42:47 -07:00
Nicholas Bellinger
5dade71050 tcm_vhost: Avoid VIRTIO_RING_F_EVENT_IDX feature bit
This patch adds a VHOST_SCSI_FEATURES mask minus VIRTIO_RING_F_EVENT_IDX
so that vhost-scsi-pci userspace will strip this feature bit once
GET_FEATURES reports it as being unsupported on the host.

This is to avoid a bug where ->handle_kicks() are missed when EVENT_IDX
is enabled by default in userspace code.

(mst: Rename to VHOST_SCSI_FEATURES + add comment)

Acked-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Asias He <asias@redhat.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2013-03-28 23:42:47 -07:00
Michel Lespinasse
09a9f1d278 Revert "mm: introduce VM_POPULATE flag to better deal with racy userspace programs"
This reverts commit 1869305009 ("mm: introduce VM_POPULATE flag to
better deal with racy userspace programs").

VM_POPULATE only has any effect when userspace plays racy games with
vmas by trying to unmap and remap memory regions that mmap or mlock are
operating on.

Also, the only effect of VM_POPULATE when userspace plays such games is
that it avoids populating new memory regions that get remapped into the
address range that was being operated on by the original mmap or mlock
calls.

Let's remove VM_POPULATE as there isn't any strong argument to mandate a
new vm_flag.

Signed-off-by: Michel Lespinasse <walken@google.com>
Signed-off-by: Hugh Dickins <hughd@google.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-03-28 17:45:51 -07:00
Linus Torvalds
0776ce03b1 USB fixes for 3.9-rc4
Here are some USB fixes to resolve issues reported recently, as well as a new
 device id for the ftdi_sio driver.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-3.9-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB fixes from Greg Kroah-Hartman:
 "Here are some USB fixes to resolve issues reported recently, as well
  as a new device id for the ftdi_sio driver."

* tag 'usb-3.9-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
  usb: ftdi_sio: Add support for Mitsubishi FX-USB-AW/-BD
  usb: Fix compile error by selecting USB_OTG_UTILS
  USB: serial: fix hang when opening port
  USB: EHCI: fix bug in iTD/siTD DMA pool allocation
  xhci: Don't warn on empty ring for suspended devices.
  usb: xhci: Fix TRB transfer length macro used for Event TRB.
  usb/acpi: binding xhci root hub usb port with ACPI
  usb: add find_raw_port_number callback to struct hc_driver()
  usb: xhci: fix build warning
2013-03-28 15:54:25 -07:00
Linus Torvalds
045ecc26a0 TTY/serial fixes for 3.9-rc4
Here are some tty/serial driver fixes for 3.9.
 
 The big thing here is the fix for the huge mess we caused renaming the 8250
 driver accidentally in the 3.7 kernel release, without realizing that there
 were users of the module options that suddenly broke.  This is now resolved,
 and, to top the injury off, we have a backwards-compatible option for those
 users who got used to the new name since 3.7.  Ugh, sorry about that.
 
 Other than that, some other minor fixes for issues that have been reported by
 users.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'tty-3.9-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty

Pull TTY/serial fixes from Greg Kroah-Hartman:
 "Here are some tty/serial driver fixes for 3.9.

  The big thing here is the fix for the huge mess we caused renaming the
  8250 driver accidentally in the 3.7 kernel release, without realizing
  that there were users of the module options that suddenly broke.  This
  is now resolved, and, to top the injury off, we have a backwards-
  compatible option for those users who got used to the new name since
  3.7.  Ugh, sorry about that.

  Other than that, some other minor fixes for issues that have been
  reported by users."

* tag 'tty-3.9-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
  Xilinx: ARM: UART: clear pending irqs before enabling irqs
  TTY: 8250, deprecated 8250_core.* options
  TTY: 8250, revert module name change
  serial: 8250_pci: Add WCH CH352 quirk to avoid Xscale detection
  tty: atmel_serial_probe(): index of atmel_ports[] fix
2013-03-28 15:53:33 -07:00
Linus Torvalds
865752ed0a Staging driver fixes for 3.9-rc4
Here are two tiny staging driver fixes to resolve issues that have been
 reported.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-3.9-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging

Pull staging driver fixes from Greg Kroah-Hartman:
 "Here are two tiny staging driver fixes to resolve issues that have
  been reported."

* tag 'staging-3.9-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
  staging: comedi: s626: fix continuous acquisition
  staging: zcache: fix typo "64_BIT"
2013-03-28 15:52:54 -07:00