Commit Graph

286578 Commits

Author SHA1 Message Date
adam radford
882be7c3be [SCSI] megaraid_sas: mask off flags in ioctl path
Mask off flags in the ioctl path to prevent memory scribble with older MegaCLI
versions.

Signed-off-by: Adam Radford <aradford@gmail.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-01-16 11:27:46 +04:00
adam radford
0d4c24cc1b [SCSI] megaraid_sas: Fix reglockFlags for degraded raid5/6
The following patch for megaraid_sas fixes the reglockFlags field for
degraded raid5/6 for MR9360/9380, which will result in a performance
improvement.

Signed-off-by: Adam Radford <aradford@gmail.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-01-16 11:26:49 +04:00
Michal Simek
7f788ec07d USB: EHCI: Don't use NO_IRQ in xilinx ehci driver
Drivers shouldn't use NO_IRQ. This driver is used
by Microblaze and PPC. PPC defines NO_IRQ as 0
and Microblaze has removed it.

Signed-off-by: Michal Simek <monstr@monstr.eu>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
CC: Greg Kroah-Hartman <gregkh@suse.de>
CC: Grant Likely <grant.likely@secretlab.ca>
CC: linux-usb@vger.kernel.org
CC: devicetree-discuss@lists.ozlabs.org
2012-01-16 08:23:15 +01:00
xiyou.wangcong@gmail.com
a1c611745c x86/kprobes: Add arch/x86/tools/insn_sanity to .gitignore
After compiling the kernel, I got:

	% git status
	# On branch master
	# Untracked files:
	#   (use "git add <file>..." to include in what will be committed)
	#
	#	arch/x86/tools/insn_sanity
	nothing added to commit but untracked files present (use "git add" to track)

it should be added to .gitignore.

Signed-off-by: WANG Cong <xiyou.wangcong@gmail.com>
Acked-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Link: http://lkml.kernel.org/r/1326628937-27609-1-git-send-email-xiyou.wangcong@gmail.com
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2012-01-16 08:21:59 +01:00
Ulrich Drepper
8d973b624e x86/kprobes: Fix typo transferred from Intel manual
The arch/x86/lib/x86-opcode-map.txt file [used by the
kprobes instruction decoder] contains the line:

  af: SCAS/W/D/Q rAX,Xv

This is what the Intel manuals show, but it's not correct.
The 'X' stands for:

  Memory addressed by the DS:rSI register pair (for example, MOVS, CMPS, OUTS, or LODS).

On the other hand 'Y' means (also see the ae byte entry for
SCASB):

  Memory addressed by the ES:rDI register pair (for example, MOVS, CMPS, INS, STOS, or SCAS).

Signed-off-by: Ulrich Drepper <drepper@gmail.com>
Acked-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: yrl.pp-manager.tt@hitachi.com
Link: http://lkml.kernel.org/r/CAOPLpQfytPyDEBF1Hbkpo7ovUerEsstVGxBr%3DEpDL-BKEMaqLA@mail.gmail.com
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2012-01-16 08:20:36 +01:00
Russell King
f7e6746eba sched/accounting, proc: Fix /proc/stat interrupts sum
Commit 3292beb340 ("sched/accounting: Change cpustat fields to an array")
deleted the code which provides us with the sum of all interrupts in the
system, causing vmstat to report zero interrupts occuring in the system.

Fix this by restoring the code.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Tested-by: Russell King <rmk+kernel@arm.linux.org.uk> # [on ARM]
Tested-by: Tony Luck <tony.luck@intel.com>
Tested-by: Steven Rostedt <rostedt@goodmis.org>
Cc: Glauber Costa <glommer@parallels.com>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Paul Tuner <pjt@google.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2012-01-16 08:13:27 +01:00
Stephen M. Cameron
775bf27738 [SCSI] hpsa: do not sleep in atomic context in rmmod path.
Don't call kthread_stop with a spin lock held and interrupts
disabled because kthread_stop will sleep waiting for the thread
to stop.

Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-01-16 09:47:24 +04:00
Alok Kataria
f2d7e40e80 [SCSI] MAINTAINERS: pvscsi maintainers update
Welcome to Arvind Kumar, our new pvscsi maintainer.

Signed-off-by: Alok N Kataria <akataria@vmware.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-01-16 09:37:52 +04:00
James Smart
0eecee413d [SCSI] scsi_transport_fc: Clear Devloss Callback Done flag in fc_remote_port_rolechg
This patch fixes a bug where devloss is not called on fc_host teardown.
The issue is seen if the LLDD uses rport_rolechg to add the target role
to an rport.

When an rport goes away, the LLDD will call fc_remote_port_delete, which
will start the devloss timer.  If the timer expires, the transport will
call the devloss callback and set the FC_RPORT_DEVLOSS_CALLBK_DONE flag.
However, the rport structure is not deleted, it is retained to store the
SCSI id mappings for the rport in case it comes back. In the scenario
where it does come back, and the driver calls fc_remote_port_add, but does
not indicate the "target" role for the rport - the create will clear the
structure, but forgets to clear FC_RPORT_DEVLOSS_CALLBK_DONE flag (which
is cleared if it's added with the target role). The secondary call, of
fc_remote_port_rolechg to add the target role also does not clear the flag.
Thus, the next time the rport goes away, the resulting devloss timer
expiration will not call the driver callback as the flag is still set.

This patch adds the FC_RPORT_DEVLOSS_CALLBK_DONE flags to the list of
those that are cleared upon reuse of the rport structure.

Signed-off-by: Alex Iannicelli <alex.iannicelli@emulex.com>
Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-01-16 09:37:01 +04:00
Kevin Winchester
53999bf34d error: implicit declaration of function 'module_flags_taint'
Recent changes to kernel/module.c caused the following compile
error:

  kernel/module.c: In function ‘show_taint’:
  kernel/module.c:1024:2: error: implicit declaration of function ‘module_flags_taint’ [-Werror=implicit-function-declaration]
  cc1: some warnings being treated as errors

Correct this error by moving the definition of module_flags_taint
outside of the #ifdef CONFIG_MODULE_UNLOAD section.

Signed-off-by: Kevin Winchester <kjwinchester@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-01-15 16:21:07 -08:00
Linus Torvalds
122804ecb5 Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
* 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (655 commits)
  [media] revert patch: HDIC HD29L2 DMB-TH USB2.0 reference design driver
  mb86a20s: Add a few more register settings at the init seq
  mb86a20s: Group registers into the same line
  [media] [PATCH] don't reset the delivery system on DTV_CLEAR
  [media] [BUG] it913x-fe fix typo error making SNR levels unstable
  [media] cx23885: Query the CX25840 during enum_input for status
  [media] cx25840: Add support for g_input_status
  [media] rc-videomate-m1f.c Rename to match remote controler name
  [media] drivers: media: au0828: Fix dependency for VIDEO_AU0828
  [media] convert drivers/media/* to use module_platform_driver()
  [media] drivers: video: cx231xx: Fix dependency for VIDEO_CX231XX_DVB
  [media] Exynos4 JPEG codec v4l2 driver
  [media] doc: v4l: selection: choose pixels as units for selection rectangles
  [media] v4l: s5p-tv: mixer: fix setup of VP scaling
  [media] v4l: s5p-tv: mixer: add support for selection API
  [media] v4l: emulate old crop API using extended crop/compose API
  [media] doc: v4l: add documentation for selection API
  [media] doc: v4l: add binary images for selection API
  [media] v4l: add support for selection api
  [media] hd29l2: fix review findings
  ...
2012-01-15 12:49:56 -08:00
Linus Torvalds
16008d6416 Merge branch 'for-3.3/drivers' of git://git.kernel.dk/linux-block
* 'for-3.3/drivers' of git://git.kernel.dk/linux-block:
  mtip32xx: do rebuild monitoring asynchronously
  xen-blkfront: Use kcalloc instead of kzalloc to allocate array
  mtip32xx: uninitialized variable in mtip_quiesce_io()
  mtip32xx: updates based on feedback
  xen-blkback: convert hole punching to discard request on loop devices
  xen/blkback: Move processing of BLKIF_OP_DISCARD from dispatch_rw_block_io
  xen/blk[front|back]: Enhance discard support with secure erasing support.
  xen/blk[front|back]: Squash blkif_request_rw and blkif_request_discard together
  mtip32xx: update to new ->make_request() API
  mtip32xx: add module.h include to avoid conflict with moduleh tree
  mtip32xx: mark a few more items static
  mtip32xx: ensure that all local functions are static
  mtip32xx: cleanup compat ioctl handling
  mtip32xx: fix warnings/errors on 32-bit compiles
  block: Add driver for Micron RealSSD pcie flash cards
2012-01-15 12:48:41 -08:00
Linus Torvalds
b3c9dd182e Merge branch 'for-3.3/core' of git://git.kernel.dk/linux-block
* 'for-3.3/core' of git://git.kernel.dk/linux-block: (37 commits)
  Revert "block: recursive merge requests"
  block: Stop using macro stubs for the bio data integrity calls
  blockdev: convert some macros to static inlines
  fs: remove unneeded plug in mpage_readpages()
  block: Add BLKROTATIONAL ioctl
  block: Introduce blk_set_stacking_limits function
  block: remove WARN_ON_ONCE() in exit_io_context()
  block: an exiting task should be allowed to create io_context
  block: ioc_cgroup_changed() needs to be exported
  block: recursive merge requests
  block, cfq: fix empty queue crash caused by request merge
  block, cfq: move icq creation and rq->elv.icq association to block core
  block, cfq: restructure io_cq creation path for io_context interface cleanup
  block, cfq: move io_cq exit/release to blk-ioc.c
  block, cfq: move icq cache management to block core
  block, cfq: move io_cq lookup to blk-ioc.c
  block, cfq: move cfqd->icq_list to request_queue and add request->elv.icq
  block, cfq: reorganize cfq_io_context into generic and cfq specific parts
  block: remove elevator_queue->ops
  block: reorder elevator switch sequence
  ...

Fix up conflicts in:
 - block/blk-cgroup.c
	Switch from can_attach_task to can_attach
 - block/cfq-iosched.c
	conflict with now removed cic index changes (we now use q->id instead)
2012-01-15 12:24:45 -08:00
Linus Torvalds
83c2f912b4 Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
* 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (39 commits)
  perf tools: Fix compile error on x86_64 Ubuntu
  perf report: Fix --stdio output alignment when --showcpuutilization used
  perf annotate: Get rid of field_sep check
  perf annotate: Fix usage string
  perf kmem: Fix a memory leak
  perf kmem: Add missing closedir() calls
  perf top: Add error message for EMFILE
  perf test: Change type of '-v' option to INCR
  perf script: Add missing closedir() calls
  tracing: Fix compile error when static ftrace is enabled
  recordmcount: Fix handling of elf64 big-endian objects.
  perf tools: Add const.h to MANIFEST to make perf-tar-src-pkg work again
  perf tools: Add support for guest/host-only profiling
  perf kvm: Do guest-only counting by default
  perf top: Don't update total_period on process_sample
  perf hists: Stop using 'self' for struct hist_entry
  perf hists: Rename total_session to total_period
  x86: Add counter when debug stack is used with interrupts enabled
  x86: Allow NMIs to hit breakpoints in i386
  x86: Keep current stack in NMI breakpoints
  ...
2012-01-15 11:26:35 -08:00
Linus Torvalds
f0ed5b9a28 Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86, atomic: atomic64_read() take a const pointer
  x86, UV: Update Boot messages for SGI UV2 platform
2012-01-15 11:26:09 -08:00
Linus Torvalds
a520458fcc Merge branch 'linux-next' of git://git.infradead.org/ubifs-2.6
* 'linux-next' of git://git.infradead.org/ubifs-2.6:
  UBI: use own macros for the layout volume
  UBI: fix nameless volumes handling
  UBIFS: fix non-debug configuration build
2012-01-15 11:25:41 -08:00
Mauro Carvalho Chehab
149709f5b8 [media] dvb-core: preserve the delivery system at cache clear
The changeset 240ab508aa is incomplete, as the first thing that
happens at cache clear is to do a memset with 0 to the cache.

So, the delivery system needs to be explicitly preserved there.

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-01-15 11:12:22 -02:00
Antti Palosaari
1264000339 [media] revert patch: HDIC HD29L2 DMB-TH USB2.0 reference design driver
I added it by mistake. It is useless as no real hardware.
It even uses even Cypress FX2, general USB bridge chip, default IDs
that makes driver load all FX2 devices having default ID...

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-01-15 11:12:21 -02:00
Mauro Carvalho Chehab
f4b1952a45 [media] dvb-core: fix a regression with MythTV
As reported by Lawrence[1], MythTV 0.24.1 does the wrong thing
with a DVBv5 call: it fills the delivery system with
SYS_UNDEFINED, expecting that the DVB core would work with that.

This used to work by accident, as the DVB core were missing the
check for the supported delivery systems. Yet, fixing it
is easy, so let's add a logic to handle this case, to
provide backward compatibility.

[1] http://patchwork.linuxtv.org/patch/8314/

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-01-15 11:12:21 -02:00
Richard Weinberger
1f4f43475f UBI: use own macros for the layout volume
This is a minor nicification: UBI_LAYOUT_VOLUME_TYPE and
UBI_LAYOUT_VOLUME_ALIGN are currently defined but not used -
use them.

Signed-off-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@linux.intel.com>
2012-01-15 15:08:55 +02:00
Richard Weinberger
4a59c797a1 UBI: fix nameless volumes handling
Currently it's possible to create a volume without a name. E.g:
ubimkvol -n 32 -s 2MiB -t static /dev/ubi0 -N ""

After that vtbl_check() will always fail because it does not permit
empty strings.

Cc: stable@kernel.org
Signed-off-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@linux.intel.com>
2012-01-15 15:06:08 +02:00
Dominique Martinet
e234b5f207 UBIFS: fix non-debug configuration build
Fix a brown paperbag bug introduced by me in the previous commit. I was
in hurry and forgot about the non-debug case completely.

Artem: amend the commit message and tweak the patch to preserve alignment.
       This made the patch a bit less readable, though.

Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@linux.intel.com>
2012-01-15 13:46:02 +02:00
Jens Axboe
85a0f7b220 Merge branch 'for-3.3/mtip32xx' into for-3.3/drivers 2012-01-15 10:39:35 +01:00
Jens Axboe
5d381efb3d Revert "block: recursive merge requests"
This reverts commit 274193224c.

We have some problems related to selection of empty queues
that need to be resolved, evidence so far points to the
recursive merge logic making either being the cause or at
least the accelerator for this. So revert it for now, until
we figure this out.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
2012-01-15 10:29:48 +01:00
Linus Torvalds
c49c41a413 Merge branch 'for-linus' of git://selinuxproject.org/~jmorris/linux-security
* 'for-linus' of git://selinuxproject.org/~jmorris/linux-security:
  capabilities: remove __cap_full_set definition
  security: remove the security_netlink_recv hook as it is equivalent to capable()
  ptrace: do not audit capability check when outputing /proc/pid/stat
  capabilities: remove task_ns_* functions
  capabitlies: ns_capable can use the cap helpers rather than lsm call
  capabilities: style only - move capable below ns_capable
  capabilites: introduce new has_ns_capabilities_noaudit
  capabilities: call has_ns_capability from has_capability
  capabilities: remove all _real_ interfaces
  capabilities: introduce security_capable_noaudit
  capabilities: reverse arguments to security_capable
  capabilities: remove the task from capable LSM hook entirely
  selinux: sparse fix: fix several warnings in the security server cod
  selinux: sparse fix: fix warnings in netlink code
  selinux: sparse fix: eliminate warnings for selinuxfs
  selinux: sparse fix: declare selinux_disable() in security.h
  selinux: sparse fix: move selinux_complete_init
  selinux: sparse fix: make selinux_secmark_refcount static
  SELinux: Fix RCU deref check warning in sel_netport_insert()

Manually fix up a semantic mis-merge wrt security_netlink_recv():

 - the interface was removed in commit fd77846152 ("security: remove
   the security_netlink_recv hook as it is equivalent to capable()")

 - a new user of it appeared in commit a38f7907b9 ("crypto: Add
   userspace configuration API")

causing no automatic merge conflict, but Eric Paris pointed out the
issue.
2012-01-14 18:36:33 -08:00
Linus Torvalds
892d208bcf Merge tag 'kmemleak' of git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas/linux
Kmemleak patches

Main features:
- Handle percpu memory allocations (only scanning them, not actually
  reporting).
- Memory hotplug support.

Usability improvements:
- Show the origin of early allocations.
- Report previously found leaks even if kmemleak has been disabled by
  some error.

* tag 'kmemleak' of git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas/linux:
  kmemleak: Add support for memory hotplug
  kmemleak: Handle percpu memory allocation
  kmemleak: Report previously found leaks even after an error
  kmemleak: When the early log buffer is exceeded, report the actual number
  kmemleak: Show where early_log issues come from
2012-01-14 18:11:11 -08:00
Linus Torvalds
dca88ad691 Merge branch 'for-next' of git://git.infradead.org/users/dhowells/linux-headers
* 'for-next' of git://git.infradead.org/users/dhowells/linux-headers:
  UAPI: Split trivial #if defined(__KERNEL__) && X conditionals
  UAPI: Don't have a #elif clause in a __KERNEL__ guard in linux/soundcard.h
  UAPI: Fix AHZ multiple inclusion when __KERNEL__ is removed
  UAPI: Make linux/patchkey.h easier to parse
  UAPI: Fix nested __KERNEL__ guards in video/edid.h
  UAPI: Alter the S390 asm include guards to be recognisable by the UAPI splitter
  UAPI: Guard linux/cuda.h
  UAPI: Guard linux/pmu.h
  UAPI: Guard linux/isdn_divertif.h
  UAPI: Guard linux/sound.h
  UAPI: Rearrange definition of HZ in asm-generic/param.h
  UAPI: Make FRV use asm-generic/param.h
  UAPI: Make M32R use asm-generic/param.h
  UAPI: Make MN10300 use asm-generic/param.h
  UAPI: elf_read_implies_exec() is a kernel-only feature - so hide from userspace
  UAPI: Don't include linux/compat.h in sparc's asm/siginfo.h
  UAPI: Fix arch/mips/include/asm/Kbuild to have separate header-y lines
2012-01-14 18:03:30 -08:00
Miklos Szeredi
fed474857e fsnotify: don't BUG in fsnotify_destroy_mark()
Removing the parent of a watched file results in "kernel BUG at
fs/notify/mark.c:139".

To reproduce

  add "-w /tmp/audit/dir/watched_file" to audit.rules
  rm -rf /tmp/audit/dir

This is caused by fsnotify_destroy_mark() being called without an
extra reference taken by the caller.

Reported by Francesco Cosoleto here:

  https://bugzilla.novell.com/show_bug.cgi?id=689860

Fix by removing the BUG_ON and adding a comment about not accessing mark after
the iput.

Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
CC: stable@vger.kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-01-14 18:01:42 -08:00
Linus Torvalds
1e6c4dfdeb Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-kconfig
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-kconfig:
  kconfig/streamline-config.pl: Fix parsing Makefile with variables
  kconfig/streamline-config.pl: Simplify backslash line concatination
2012-01-14 17:59:02 -08:00
Arnaud Lacombe
37ae2d5998 kbuild: Fix compiler warning with assertion when calling 'fwrite'
Reinhard Tartler discovered a corner case of calling xfwrite() where the
length of the string is zero.

Arnaud Lacombe suggested to use assertion for the corner case, as
fwrite(3) is currently used:

 1) in comment printers. Empty comment are not allowed.
 2) in a callback passed to expr_print(), where the string printed is
    either NULL OR non-empty.
 3) in the lexer, auto-generated, and unused.

I feel using assertion is a good solution:

 1) It cleanly takes care of the above-mentioned corner case.
 2) It can be easily disabled by defining NDEBUG.
 3) It asserts xfwrite() is simply a wrapper for fwrite().

Reported-by: Reinhard Tartler <Reinhard.Tartler@informatik.uni-erlangen.de>
Signed-off-by: Arnaud Lacombe <lacombar@gmail.com>
Signed-off-by: Jean Sacren <sakiwit@gmail.com>
Signed-off-by: Michal Marek <mmarek@suse.cz>
2012-01-15 00:17:18 +01:00
Peter Foley
e2aef4d33a Improve update-po-config output
Make the V=0 output from update-po-config be aligned correctly.
Also remove an outdated comment and add a "GEN" statement.

Signed-off-by: Peter Foley <pefoley2@verizon.net>
Signed-off-by: Michal Marek <mmarek@suse.cz>
2012-01-15 00:13:53 +01:00
Linus Torvalds
51be08419d Merge branch 'fbdev-next' of git://github.com/schandinat/linux-2.6
* 'fbdev-next' of git://github.com/schandinat/linux-2.6: (175 commits)
  module_param: make bool parameters really bool (drivers/video/i810)
  Revert "atmel_lcdfb: Adjust HFP calculation so it matches the manual."
  OMAPDSS: HDMI: Disable DDC internal pull up
  OMAPDSS: HDMI: Move duplicate code from boardfile
  OMAPDSS: add OrtusTech COM43H4M10XTC display support
  OMAP: DSS2: Support for UMSH-8173MD TFT panel
  ASoC: OMAP: HDMI: Move HDMI codec trigger function to generic HDMI driver
  OMAPDSS: HDMI: Create function to enable HDMI audio
  ASoC: OMAP: HDMI: Correct signature of ASoC functions
  ASoC: OMAP: HDMI: Introduce driver data for audio codec
  grvga: fix section mismatch warnings
  video: s3c-fb: Don't keep device runtime active when open
  video: s3c-fb: Hold runtime PM references when touching registers
  video: s3c-fb: Take a runtime PM reference when unblanked
  video: s3c-fb: Disable runtime PM in error paths from probe
  video: s3c-fb: Use s3c_fb_enable() to enable the framebuffer
  video: s3c-fb: Make runtime PM functional again
  drivers/video: fsl-diu-fb: merge fsl_diu_alloc() into map_video_memory()
  drivers/video: fsl-diu-fb: add default platform ops functions
  drivers/video: fsl-diu-fb: remove broken reference count enabling the display
  ...
2012-01-14 15:11:19 -08:00
Paolo Bonzini
ec8013bedd dm: do not forward ioctls from logical volumes to the underlying device
A logical volume can map to just part of underlying physical volume.
In this case, it must be treated like a partition.

Based on a patch from Alasdair G Kergon.

Cc: Alasdair G Kergon <agk@redhat.com>
Cc: dm-devel@redhat.com
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-01-14 15:07:24 -08:00
Paolo Bonzini
0bfc96cb77 block: fail SCSI passthrough ioctls on partition devices
Linux allows executing the SG_IO ioctl on a partition or LVM volume, and
will pass the command to the underlying block device.  This is
well-known, but it is also a large security problem when (via Unix
permissions, ACLs, SELinux or a combination thereof) a program or user
needs to be granted access only to part of the disk.

This patch lets partitions forward a small set of harmless ioctls;
others are logged with printk so that we can see which ioctls are
actually sent.  In my tests only CDROM_GET_CAPABILITY actually occurred.
Of course it was being sent to a (partition on a) hard disk, so it would
have failed with ENOTTY and the patch isn't changing anything in
practice.  Still, I'm treating it specially to avoid spamming the logs.

In principle, this restriction should include programs running with
CAP_SYS_RAWIO.  If for example I let a program access /dev/sda2 and
/dev/sdb, it still should not be able to read/write outside the
boundaries of /dev/sda2 independent of the capabilities.  However, for
now programs with CAP_SYS_RAWIO will still be allowed to send the
ioctls.  Their actions will still be logged.

This patch does not affect the non-libata IDE driver.  That driver
however already tests for bd != bd->bd_contains before issuing some
ioctl; it could be restricted further to forbid these ioctls even for
programs running with CAP_SYS_ADMIN/CAP_SYS_RAWIO.

Cc: linux-scsi@vger.kernel.org
Cc: Jens Axboe <axboe@kernel.dk>
Cc: James Bottomley <JBottomley@parallels.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
[ Make it also print the command name when warning - Linus ]
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-01-14 15:07:24 -08:00
Paolo Bonzini
577ebb374c block: add and use scsi_blk_cmd_ioctl
Introduce a wrapper around scsi_cmd_ioctl that takes a block device.

The function will then be enhanced to detect partition block devices
and, in that case, subject the ioctls to whitelisting.

Cc: linux-scsi@vger.kernel.org
Cc: Jens Axboe <axboe@kernel.dk>
Cc: James Bottomley <JBottomley@parallels.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-01-14 15:07:24 -08:00
Julia Lawall
29a36d4dec scripts/coccinelle: improve the coverage of some semantic patches
This patch ensures that all semantic patches in the scripts/coccinelle
directory provide the report option.  Report messages that include line
numbers now have the line number preceded by "line" for easier subsequent
processing.

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Michal Marek <mmarek@suse.cz>
2012-01-15 00:05:46 +01:00
Stephen Warren
7c43185138 Kbuild: Use dtc's -d (dependency) option
This hooks dtc into Kbuild's dependency system.

Thus, for example, "make dtbs" will rebuild tegra-harmony.dtb if only
tegra20.dtsi has changed yet tegra-harmony.dts has not. The previous
lack of this feature recently caused me to have very confusing "git
bisect" results.

For ARM, it's obvious what to add to $(targets). I'm not familiar enough
with other architectures to know what to add there. Powerpc appears to
already add various .dtb files into $(targets), but the other archs may
need something added to $(targets) to work.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
[mmarek: Dropped arch/c6x part to avoid merging commits from the middle
of the merge window]
Signed-off-by: Michal Marek <mmarek@suse.cz>
2012-01-15 00:04:35 +01:00
Stephen Warren
136ec2049f dtc: Implement -d option to write out a dependency file
This will allow callers to rebuild .dtb files when any of the /include/d
.dtsi files are modified, not just the top-level .dts file.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Michal Marek <mmarek@suse.cz>
2012-01-14 23:47:37 +01:00
Julia Lawall
fb3f8af4ff coccinelle: semantic patches related to devm_ functions (part 2)
devm_ functions allocate memory that is to remain allocated until the
device is detached.  This patch checks for freeing of such memory using
standard memory freeing functions.

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Michal Marek <mmarek@suse.cz>
2012-01-14 22:40:04 +01:00
Julia Lawall
22e0059af3 coccinelle: semantic patches related to devm_ functions (part 1)
devm_ functions allocate memory that is to remain allocated until the
device is detached.  This patch checks for opportunities for using the
function devm_request_and_ioremap.

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Michal Marek <mmarek@suse.cz>
2012-01-14 22:39:53 +01:00
Greg Dietsche
f95ab20972 coccinelle.txt: update documentation to include M= option
Adding documentation for the new M= option which limits Coccinelle
to a specific set of directories.

Signed-off-by: Greg Dietsche <Gregory.Dietsche@cuw.edu>
Acked-by: Julia Lawall <julia.lawall@lip6.fr>
Signed-off-by: Michal Marek <mmarek@suse.cz>
2012-01-14 22:25:56 +01:00
Linus Torvalds
81d48f0aee Merge tags 'devicetree-for-linus' and 'spi-for-linus' of git://git.secretlab.ca/git/linux-2.6
2nd set of device tree changes and SPI bug fixes for v3.3

* tag 'devicetree-for-linus' of git://git.secretlab.ca/git/linux-2.6:
  of/irq: Add interrupts-names property to name an irq resource
  of/address: Add reg-names property to name an iomem resource

* tag 'spi-for-linus' of git://git.secretlab.ca/git/linux-2.6:
  spi/tegra: depend instead of select TEGRA_SYSTEM_DMA
2012-01-14 13:25:55 -08:00
Greg Dietsche
d0bc1fb467 coccicheck: add M= option to control which dir is processed
Examples:
	make coccicheck M=drivers/net/wireless/
	make coccicheck SUBDIRS=drivers/net/wireless/

Version 2:
	fix patch file names when using M=
	tell coccinelle where the include files are

Version 3:
	Add second include option to support out of tree development
	Fix error message

Signed-off-by: Greg Dietsche <Gregory.Dietsche@cuw.edu>
Acked-by: Julia Lawall <julia.lawall@lip6.fr>
Signed-off-by: Michal Marek <mmarek@suse.cz>
2012-01-14 22:25:40 +01:00
Linus Torvalds
f5e4e20faa Merge tag 'gpio-for-linus' of git://git.secretlab.ca/git/linux-2.6
2nd round of GPIO changes for v3.3 merge window

* tag 'gpio-for-linus' of git://git.secretlab.ca/git/linux-2.6:
  GPIO: sa1100: implement proper gpiolib gpio_to_irq conversion
  gpio: pl061: remove combined interrupt
  gpio: pl061: convert to use generic irq chip
  GPIO: add bindings for managed devices
  ARM: realview: convert pl061 no irq to 0 instead of -1
  gpio: pl061: convert to use 0 for no irq
  gpio: pl061: use chained_irq_* functions in irq handler
  GPIO/pl061: Add suspend resume capability
  drivers/gpio/gpio-tegra.c: use devm_request_and_ioremap
2012-01-14 13:25:23 -08:00
Linus Torvalds
4964e0664c Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (119 commits)
  MIPS: Delete unused function add_temporary_entry.
  MIPS: Set default pci cache line size.
  MIPS: Flush huge TLB
  MIPS: Octeon: Remove SYS_SUPPORTS_HIGHMEM.
  MIPS: Octeon: Add support for OCTEON II PCIe
  MIPS: Octeon: Update PCI Latency timer and enable more error reporting.
  MIPS: Alchemy: Update cpu-feature-overrides
  MIPS: Alchemy: db1200: Improve PB1200 detection.
  MIPS: Alchemy: merge Au1000 and Au1300-style IRQ controller code.
  MIPS: Alchemy: chain IRQ controllers to MIPS IRQ controller
  MIPS: Alchemy: irq: register pm at irq init time
  MIPS: Alchemy: Touchscreen support on DB1100
  MIPS: Alchemy: Hook up IrDA on DB1000/DB1100
  net/irda: convert au1k_ir to platform driver.
  MIPS: Alchemy: remove unused board headers
  MTD: nand: make au1550nd.c a platform_driver
  MIPS: Netlogic: Mark Netlogic chips as SMT capable
  MIPS: Netlogic: Add support for XLP 3XX cores
  MIPS: Netlogic: Merge some of XLR/XLP wakup code
  MIPS: Netlogic: Add default XLP config.
  ...

Fix up trivial conflicts in arch/mips/kernel/{perf_event_mipsxx.c,
traps.c} and drivers/tty/serial/Makefile
2012-01-14 13:05:21 -08:00
Wang YanQing
c55ac15401 menuconfig: let make not report error when not save configuration
I find every time when I choice the 'NO' button at the dialog
which let me choice whether to save the configuration before exit
menuconfig, it always report the blow:

" GEN     /mnt/sda7/home/build/test/Makefile
  HOSTCC  scripts/kconfig/mconf.o
  HOSTLD  scripts/kconfig/mconf
scripts/kconfig/mconf Kconfig

Your configuration changes were NOT saved.

make[2]: *** [menuconfig] Error 1
make[1]: *** [menuconfig] Error 2
make: *** [sub-make] Error 2 "

This patch repair it.

Signed-off-by: Wang YanQing <udknight@gmail.com>
Acked-by: Davidlohr Bueso <dave@gnu.org>
Signed-off-by: Michal Marek <mmarek@suse.cz>
2012-01-14 21:54:32 +01:00
John Stultz
320d41bb15 merge_config.sh: fix bug in final check
Arnaud Lacombe pointed out the final checking that the requested configs
were included in the final .config was broken.

The example was that if you had a fragment that disabled
CONFIG_DECOMPRESS_GZIP applied to a normal defconfig, there would be no
final warning that CONFIG_DECOMPRESS_GZIP was acutally set in the final
.config.

This bug was introduced by me in v3 of the original patch, and the
following patch reverts the invalid change.

Signed-off-by: John Stultz <john.stultz@linaro.org>
Reported-by: Arnaud Lacombe <lacombar@gmail.com>
Cc: Darren Hart <dvhart@linux.intel.com>
Cc: Michal Marek <mmarek@suse.cz>
Cc: Arnaud Lacombe <lacombar@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Michal Marek <mmarek@suse.cz>
2012-01-14 21:44:29 +01:00
Darren Hart
c0c0cda276 merge_config.sh: whitespace cleanup
Fix whitespace usage in the clean_up routine.

Signed-off-by: Darren Hart <dvhart@linux.intel.com>
Acked-by: John Stultz <john.stultz@linaro.org>
Cc: Michal Marek <mmarek@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Michal Marek <mmarek@suse.cz>
2012-01-14 21:44:29 +01:00
Darren Hart
041b78c89b merge_config.sh: use signal names compatible with dash and bash
The SIGHUP SIGINT and SIGTERM names caused failures when running
merge_config.sh with the dash shell.  Dropping the "SIG" component makes
the script work in both bash and dash.

Signed-off-by: Darren Hart <dvhart@linux.intel.com>
Acked-by: John Stultz <john.stultz@linaro.org>
Cc: Michal Marek <mmarek@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Michal Marek <mmarek@suse.cz>
2012-01-14 21:44:29 +01:00
john stultz
4b5f72145e kconfig: add merge_config.sh script
After noticing almost every distro has their own method of managing config
fragments, I went looking at some best practices, and wanted to try to
consolidate some of the different approaches so this fairly simple
infrastructure can be shared (and new distros/build systems don't have to
implement yet another config fragment merge script).

This script is most influenced by the Windriver tools used in the Yocto
Project, reusing some portions found there.

This script merges multiple config fragments, warning on any overridden
values.  It then sets any unspecified values to their default, then
finally checks to make sure no specified value was dropped due to
unsatisfied dependencies.

I'm sure this implementation won't work for everyone, and I expect it will
need to evolve to adapt for various use cases.  But I think its a
reasonable starting point.

Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Greg Thelen <gthelen@google.com>
Cc: Reinhard Tartler <Reinhard.Tartler@informatik.uni-erlangen.de>
Cc: Dmitry Fink <Dmitry.Fink@palm.com>
Cc: Darren Hart <dvhart@linux.intel.com>
Cc: Eric B Munson <ebmunson@us.ibm.com>
Cc: Bruce Ashfield <Bruce.Ashfield@windriver.com>
Cc: Michal Marek <mmarek@suse.cz>
Signed-off-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Michal Marek <mmarek@suse.cz>
2012-01-14 21:44:28 +01:00