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11 years agoRevert "drivers/misc/ti-st: remove gpio handling"
Luciano Coelho [Mon, 21 Jan 2013 11:12:42 +0000 (13:12 +0200)]
Revert "drivers/misc/ti-st: remove gpio handling"

This reverts commit eccf2979b2c034b516e01b8a104c3739f7ef07d1.

The reason is that it broke TI WiLink shared transport on Panda.
Also, callback functions should not be added to board files anymore,
so revert to implementing the power functions in the driver itself.

Additionally, changed a variable name ('status' to 'err') so that this
revert compiles properly.

Cc: stable <stable@vger.kernel.org> [3.7]
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoMerge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
Linus Torvalds [Mon, 21 Jan 2013 04:55:49 +0000 (20:55 -0800)]
Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux

Pull drm fixes from Dave Airlie:
 "A bunch of intel and radeon fixes, along with two fixes to TTM code.

  The correct fix for the Intel ironlake failure is in this, and should
  make things more stable, along with some misc radeon fixes."

* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
  ttm: on move memory failure don't leave a node dangling
  ttm: don't destroy old mm_node on memcpy failure
  Revert "drm/radeon: do not move bo to different placement at each cs"
  drm/i915: fix FORCEWAKE posting reads
  drm/i915: Invalidate the relocation presumed_offsets along the slow path
  drm/i915/eDP: do not write power sequence registers for ghost eDP
  drm/radeon: improve semaphore debugging on lockup
  drm/radeon: allow FP16 color clear registers on r500
  drm/radeon: clear reset flags if engines are idle
  drm/i915: Record DERRMR, FORCEWAKE and RING_CTL in error-state

11 years agomodule: fix missing module_mutex unlock
Linus Torvalds [Mon, 21 Jan 2013 04:22:58 +0000 (20:22 -0800)]
module: fix missing module_mutex unlock

Commit 1fb9341ac348 ("module: put modules in list much earlier") moved
some of the module initialization code around, and in the process
changed the exit paths too.  But for the duplicate export symbol error
case the change made the ddebug_cleanup path jump to after the module
mutex unlock, even though it happens with the mutex held.

Rusty has some patches to split this function up into some helper
functions, hopefully the mess of complex goto targets will go away
eventually.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
11 years agottm: on move memory failure don't leave a node dangling
Dave Airlie [Wed, 16 Jan 2013 05:58:34 +0000 (15:58 +1000)]
ttm: on move memory failure don't leave a node dangling

if we have a move notify callback, when moving fails, we call move notify
the opposite way around, however this ends up with *mem containing the mm_node
from the bo, which means we double free it. This is a follow on to the previous
fix.

Reviewed-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
11 years agottm: don't destroy old mm_node on memcpy failure
Dave Airlie [Wed, 16 Jan 2013 04:25:44 +0000 (14:25 +1000)]
ttm: don't destroy old mm_node on memcpy failure

When we are using memcpy to move objects around, and we fail to memcpy
due to lack of memory to populate or failure to finish the copy, we don't
want to destroy the mm_node that has been copied into old_copy.

While working on a new kms driver that uses memcpy, if I overallocated bo's
up to the memory limits, and eviction failed, then machine would oops soon
after due to having an active bo with an already freed drm_mm embedded in it,
freeing it a second time didn't end well.

Reviewed-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
11 years agoMerge branch 'drm-intel-fixes' of git://people.freedesktop.org/~danvet/drm-intel...
Dave Airlie [Mon, 21 Jan 2013 03:25:30 +0000 (13:25 +1000)]
Merge branch 'drm-intel-fixes' of git://people.freedesktop.org/~danvet/drm-intel into drm-next

More important fixes for 3.9:
- error_state improvements to help debug the new scanline wait code added
  for gen6+ - bug reports started popping up :( patch from Chris Wilson.
- fix a panel power sequence confusion between the eDP and lvds detection
  code resulting in black screens - regression introduce in 3.8 (Jani
  Nikula)
- Chris fixed the root-cause of the ilk relocation vs. evict bug.
- Another piece of cargo-culted rc6 lore from Jani, fixes up a regression
  where a system refused to go into rc6 after suspend sometimes.

* 'drm-intel-fixes' of git://people.freedesktop.org/~danvet/drm-intel:
  drm/i915: fix FORCEWAKE posting reads
  drm/i915: Invalidate the relocation presumed_offsets along the slow path
  drm/i915/eDP: do not write power sequence registers for ghost eDP
  drm/i915: Record DERRMR, FORCEWAKE and RING_CTL in error-state

11 years agoMerge branch 'drm-fixes-3.8' of git://people.freedesktop.org/~agd5f/linux into drm...
Dave Airlie [Mon, 21 Jan 2013 03:24:12 +0000 (13:24 +1000)]
Merge branch 'drm-fixes-3.8' of git://people.freedesktop.org/~agd5f/linux into drm-next

A number of fixes, and one revert for a patch having some wierd side effects.

* 'drm-fixes-3.8' of git://people.freedesktop.org/~agd5f/linux:
  Revert "drm/radeon: do not move bo to different placement at each cs"
  drm/radeon: improve semaphore debugging on lockup
  drm/radeon: allow FP16 color clear registers on r500
  drm/radeon: clear reset flags if engines are idle

11 years agoMerge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty...
Linus Torvalds [Mon, 21 Jan 2013 00:44:28 +0000 (16:44 -0800)]
Merge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux

Pull module fixes and a virtio block fix from Rusty Russell:
 "Various minor fixes, but a slightly more complex one to fix the
  per-cpu overload problem introduced recently by kvm id changes."

* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux:
  module: put modules in list much earlier.
  module: add new state MODULE_STATE_UNFORMED.
  module: prevent warning when finit_module a 0 sized file
  virtio-blk: Don't free ida when disk is in use

11 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal
Linus Torvalds [Sun, 20 Jan 2013 21:58:48 +0000 (13:58 -0800)]
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal

Pull misc syscall fixes from Al Viro:

 - compat syscall fixes (discussed back in December)

 - a couple of "make life easier for sigaltstack stuff by reducing
   inter-tree dependencies"

 - fix up compiler/asmlinkage calling convention disagreement of
   sys_clone()

 - misc

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal:
  sys_clone() needs asmlinkage_protect
  make sure that /linuxrc has std{in,out,err}
  x32: fix sigtimedwait
  x32: fix waitid()
  switch compat_sys_wait4() and compat_sys_waitid() to COMPAT_SYSCALL_DEFINE
  switch compat_sys_sigaltstack() to COMPAT_SYSCALL_DEFINE
  CONFIG_GENERIC_SIGALTSTACK build breakage with asm-generic/syscalls.h
  Ensure that kernel_init_freeable() is not inlined into non __init code

11 years agoia64: kill thread_matches(), unexport ptrace_check_attach()
Oleg Nesterov [Sun, 20 Jan 2013 19:25:47 +0000 (20:25 +0100)]
ia64: kill thread_matches(), unexport ptrace_check_attach()

The ia64 function "thread_matches()" has no users since commit
e868a55c2a8c ("[IA64] remove find_thread_for_addr()").  Remove it.

This allows us to make ptrace_check_attach() static to kernel/ptrace.c,
which is good since we'll need to change the semantics of it and fix up
all the callers.

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
11 years agosys_clone() needs asmlinkage_protect
Al Viro [Sun, 20 Jan 2013 03:13:34 +0000 (22:13 -0500)]
sys_clone() needs asmlinkage_protect

Cc: stable@vger.kernel.org
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
11 years agomake sure that /linuxrc has std{in,out,err}
Al Viro [Sat, 19 Jan 2013 18:29:54 +0000 (13:29 -0500)]
make sure that /linuxrc has std{in,out,err}

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
11 years agoMerge tag 'usb-3.8-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Linus Torvalds [Fri, 18 Jan 2013 22:06:29 +0000 (14:06 -0800)]
Merge tag 'usb-3.8-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB fixes from Greg Kroah-Hartman:
 "Here are 3 USB patches for 3.8-rc4.  Two of them are new device id
  patches, and the third fixes a reported oops in the io_ti USB serial
  driver"

* tag 'usb-3.8-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
  USB: io_ti: Fix NULL dereference in chase_port()
  USB: option: add TP-LINK HSUPA Modem MA180
  USB: option: blacklist network interface on ONDA MT8205 4G LTE

11 years agoMerge tag 'tty-3.8-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Linus Torvalds [Fri, 18 Jan 2013 22:05:59 +0000 (14:05 -0800)]
Merge tag 'tty-3.8-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty

Pull tty/serial fixes from Greg Kroah-Hartman:
 "Here are a few tty/serial driver fixes for 3.8-rc4 that resolve a
  number of problems that people have been having, including the ptys
  ioctl issue that is a regression fix"

* tag 'tty-3.8-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
  8250/16?50: Add support for Broadcom TruManage redirected serial port
  pty: return EINVAL for TIOCGPTN for BSD ptys
  serial:ifx6x60:Keep word size accordance with SPI controller
  tty: 8250_dw: Fix inverted arguments to serial_out in IRQ handler
  serial: samsung: remove redundant setting of line config during port reset
  serial:ifx6x60:Delete SPI timer when shut down port
  tty/8250: The correct device id for this card is 0x0022
  tty/8250: pbn_b0_8_1152000_200 is supposed to be an 8 port definition
  tty: serial: vt8500: fix return value check in vt8500_serial_probe()
  serial: mxs-auart: Index is unsigned
  mxs: uart: fix setting RTS from software

11 years agoMerge tag 'staging-3.8-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh...
Linus Torvalds [Fri, 18 Jan 2013 22:05:25 +0000 (14:05 -0800)]
Merge tag 'staging-3.8-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging

Pull staging driver bugfixes from Greg Kroah-Hartman:
 "Here are some bugfixes for the drivers/staging tree for 3.8-rc4.

  Nothing major, just a number of small fixes for problems that people
  have reported, including finally tracking down the root of the 64/32
  bit problem with the vt6656 that has been driving people crazy for a
  while"

* tag 'staging-3.8-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
  staging/sb105x: PARPORT config is not good enough must use PARPORT_PC
  staging: wlan-ng: Fix clamping of returned SSID length
  staging: vt6656: Fix inconsistent structure packing
  staging:iio:adis16080: Perform sign extension
  iio: mxs-lradc: indexes are unsigned

11 years agoMerge tag 'char-misc-3.8-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh...
Linus Torvalds [Fri, 18 Jan 2013 22:04:50 +0000 (14:04 -0800)]
Merge tag 'char-misc-3.8-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char/misc driver fixes from Greg Kroah-Hartman:
 "Here are two hyperv patches for 3.8-rc4 that fix some reported
  problems hv_balloon driver"

* tag 'char-misc-3.8-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
  Drivers: hv: balloon: Fix a memory leak
  Drivers: hv: balloon: Fix a bug in the definition of struct dm_info_msg

11 years agoMerge tag 'stable/for-linus-3.8-rc3-tag' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Fri, 18 Jan 2013 20:02:52 +0000 (12:02 -0800)]
Merge tag 'stable/for-linus-3.8-rc3-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen

Pull Xen fixes from Konrad Rzeszutek Wilk:
 - CVE-2013-0190/XSA-40 (or stack corruption for 32-bit PV kernels)
 - Fix racy vma access spotted by Al Viro
 - Fix mmap batch ioctl potentially resulting in large O(n) page allcations.
 - Fix vcpu online/offline BUG:scheduling while atomic..
 - Fix unbound buffer scanning for more than 32 vCPUs.
 - Fix grant table being incorrectly initialized
 - Fix incorrect check in pciback
 - Allow privcmd in backend domains.

Fix up whitespace conflict due to ugly merge resolution in Xen tree in
arch/arm/xen/enlighten.c

* tag 'stable/for-linus-3.8-rc3-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen:
  xen: Fix stack corruption in xen_failsafe_callback for 32bit PVOPS guests.
  Revert "xen/smp: Fix CPU online/offline bug triggering a BUG: scheduling while atomic."
  xen/gntdev: remove erronous use of copy_to_user
  xen/gntdev: correctly unmap unlinked maps in mmu notifier
  xen/gntdev: fix unsafe vma access
  xen/privcmd: Fix mmap batch ioctl.
  Xen: properly bound buffer access when parsing cpu/*/availability
  xen/grant-table: correctly initialize grant table version 1
  x86/xen : Fix the wrong check in pciback
  xen/privcmd: Relax access control in privcmd_ioctl_mmap

11 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu
Linus Torvalds [Fri, 18 Jan 2013 19:58:10 +0000 (11:58 -0800)]
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu

Pull m68knommu arch fixes from Greg Ungerer:
 "This contains a couple of fixes, both affecting compilation of non-mmu
  m68k targets."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu:
  m68k: fix conditional use of init_pointer_table
  m68knommu: add KMAP definitions for non-MMU definitions

11 years agoasm-generic, mm: pgtable: convert my_zero_pfn() to macros to fix build
Kirill A. Shutemov [Wed, 26 Dec 2012 00:19:55 +0000 (03:19 +0300)]
asm-generic, mm: pgtable: convert my_zero_pfn() to macros to fix build

Commit 816422ad7647 ("asm-generic, mm: pgtable: consolidate zero page
helpers") broke the compile on MIPS if SPARSEMEM is enabled.  We get
this:

  In file included from arch/mips/include/asm/pgtable.h:552,
                   from include/linux/mm.h:44,
                   from arch/mips/kernel/asm-offsets.c:14:
  include/asm-generic/pgtable.h: In function 'my_zero_pfn':
  include/asm-generic/pgtable.h:466: error: implicit declaration of function 'page_to_section'
  In file included from arch/mips/kernel/asm-offsets.c:14:
  include/linux/mm.h: At top level:
  include/linux/mm.h:738: error: conflicting types for 'page_to_section'
  include/asm-generic/pgtable.h:466: note: previous implicit declaration of 'page_to_section' was here

Due header files inter-dependencies, the only way I see to fix it is
convert my_zero_pfn() for __HAVE_COLOR_ZERO_PAGE to macros.

Signed-off-by: Kirill A. Shutemov <kirill@shutemov.name>
Tested-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Acked-by: David Daney <david.daney@cavium.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
11 years agoLinux 3.8-rc4
Linus Torvalds [Fri, 18 Jan 2013 03:25:45 +0000 (19:25 -0800)]
Linux 3.8-rc4

11 years agoUSB: io_ti: Fix NULL dereference in chase_port()
Wolfgang Frisch [Thu, 17 Jan 2013 00:07:02 +0000 (01:07 +0100)]
USB: io_ti: Fix NULL dereference in chase_port()

The tty is NULL when the port is hanging up.
chase_port() needs to check for this.

This patch is intended for stable series.
The behavior was observed and tested in Linux 3.2 and 3.7.1.

Johan Hovold submitted a more elaborate patch for the mainline kernel.

[   56.277883] usb 1-1: edge_bulk_in_callback - nonzero read bulk status received: -84
[   56.278811] usb 1-1: USB disconnect, device number 3
[   56.278856] usb 1-1: edge_bulk_in_callback - stopping read!
[   56.279562] BUG: unable to handle kernel NULL pointer dereference at 00000000000001c8
[   56.280536] IP: [<ffffffff8144e62a>] _raw_spin_lock_irqsave+0x19/0x35
[   56.281212] PGD 1dc1b067 PUD 1e0f7067 PMD 0
[   56.282085] Oops: 0002 [#1] SMP
[   56.282744] Modules linked in:
[   56.283512] CPU 1
[   56.283512] Pid: 25, comm: khubd Not tainted 3.7.1 #1 innotek GmbH VirtualBox/VirtualBox
[   56.283512] RIP: 0010:[<ffffffff8144e62a>]  [<ffffffff8144e62a>] _raw_spin_lock_irqsave+0x19/0x35
[   56.283512] RSP: 0018:ffff88001fa99ab0  EFLAGS: 00010046
[   56.283512] RAX: 0000000000000046 RBX: 00000000000001c8 RCX: 0000000000640064
[   56.283512] RDX: 0000000000010000 RSI: ffff88001fa99b20 RDI: 00000000000001c8
[   56.283512] RBP: ffff88001fa99b20 R08: 0000000000000000 R09: 0000000000000000
[   56.283512] R10: 0000000000000000 R11: ffffffff812fcb4c R12: ffff88001ddf53c0
[   56.283512] R13: 0000000000000000 R14: 00000000000001c8 R15: ffff88001e19b9f4
[   56.283512] FS:  0000000000000000(0000) GS:ffff88001fd00000(0000) knlGS:0000000000000000
[   56.283512] CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[   56.283512] CR2: 00000000000001c8 CR3: 000000001dc51000 CR4: 00000000000006e0
[   56.283512] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   56.283512] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
[   56.283512] Process khubd (pid: 25, threadinfo ffff88001fa98000, task ffff88001fa94f80)
[   56.283512] Stack:
[   56.283512]  0000000000000046 00000000000001c8 ffffffff810578ec ffffffff812fcb4c
[   56.283512]  ffff88001e19b980 0000000000002710 ffffffff812ffe81 0000000000000001
[   56.283512]  ffff88001fa94f80 0000000000000202 ffffffff00000001 0000000000000296
[   56.283512] Call Trace:
[   56.283512]  [<ffffffff810578ec>] ? add_wait_queue+0x12/0x3c
[   56.283512]  [<ffffffff812fcb4c>] ? usb_serial_port_work+0x28/0x28
[   56.283512]  [<ffffffff812ffe81>] ? chase_port+0x84/0x2d6
[   56.283512]  [<ffffffff81063f27>] ? try_to_wake_up+0x199/0x199
[   56.283512]  [<ffffffff81263a5c>] ? tty_ldisc_hangup+0x222/0x298
[   56.283512]  [<ffffffff81300171>] ? edge_close+0x64/0x129
[   56.283512]  [<ffffffff810612f7>] ? __wake_up+0x35/0x46
[   56.283512]  [<ffffffff8106135b>] ? should_resched+0x5/0x23
[   56.283512]  [<ffffffff81264916>] ? tty_port_shutdown+0x39/0x44
[   56.283512]  [<ffffffff812fcb4c>] ? usb_serial_port_work+0x28/0x28
[   56.283512]  [<ffffffff8125d38c>] ? __tty_hangup+0x307/0x351
[   56.283512]  [<ffffffff812e6ddc>] ? usb_hcd_flush_endpoint+0xde/0xed
[   56.283512]  [<ffffffff8144e625>] ? _raw_spin_lock_irqsave+0x14/0x35
[   56.283512]  [<ffffffff812fd361>] ? usb_serial_disconnect+0x57/0xc2
[   56.283512]  [<ffffffff812ea99b>] ? usb_unbind_interface+0x5c/0x131
[   56.283512]  [<ffffffff8128d738>] ? __device_release_driver+0x7f/0xd5
[   56.283512]  [<ffffffff8128d9cd>] ? device_release_driver+0x1a/0x25
[   56.283512]  [<ffffffff8128d393>] ? bus_remove_device+0xd2/0xe7
[   56.283512]  [<ffffffff8128b7a3>] ? device_del+0x119/0x167
[   56.283512]  [<ffffffff812e8d9d>] ? usb_disable_device+0x6a/0x180
[   56.283512]  [<ffffffff812e2ae0>] ? usb_disconnect+0x81/0xe6
[   56.283512]  [<ffffffff812e4435>] ? hub_thread+0x577/0xe82
[   56.283512]  [<ffffffff8144daa7>] ? __schedule+0x490/0x4be
[   56.283512]  [<ffffffff8105798f>] ? abort_exclusive_wait+0x79/0x79
[   56.283512]  [<ffffffff812e3ebe>] ? usb_remote_wakeup+0x2f/0x2f
[   56.283512]  [<ffffffff812e3ebe>] ? usb_remote_wakeup+0x2f/0x2f
[   56.283512]  [<ffffffff810570b4>] ? kthread+0x81/0x89
[   56.283512]  [<ffffffff81057033>] ? __kthread_parkme+0x5c/0x5c
[   56.283512]  [<ffffffff8145387c>] ? ret_from_fork+0x7c/0xb0
[   56.283512]  [<ffffffff81057033>] ? __kthread_parkme+0x5c/0x5c
[   56.283512] Code: 8b 7c 24 08 e8 17 0b c3 ff 48 8b 04 24 48 83 c4 10 c3 53 48 89 fb 41 50 e8 e0 0a c3 ff 48 89 04 24 e8 e7 0a c3 ff ba 00 00 01 00
<f0> 0f c1 13 48 8b 04 24 89 d1 c1 ea 10 66 39 d1 74 07 f3 90 66
[   56.283512] RIP  [<ffffffff8144e62a>] _raw_spin_lock_irqsave+0x19/0x35
[   56.283512]  RSP <ffff88001fa99ab0>
[   56.283512] CR2: 00000000000001c8
[   56.283512] ---[ end trace 49714df27e1679ce ]---

Signed-off-by: Wolfgang Frisch <wfpub@roembden.net>
Cc: Johan Hovold <jhovold@gmail.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoUSB: option: add TP-LINK HSUPA Modem MA180
Bjørn Mork [Tue, 15 Jan 2013 09:29:49 +0000 (10:29 +0100)]
USB: option: add TP-LINK HSUPA Modem MA180

The driver description files gives these names to the vendor specific
functions on this modem:

 Diagnostics VID_2357&PID_0201&MI_00
 NMEA        VID_2357&PID_0201&MI_01
 Modem       VID_2357&PID_0201&MI_03
 Networkcard VID_2357&PID_0201&MI_04

Reported-by: Thomas Schäfer <tschaefer@t-online.de>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoUSB: option: blacklist network interface on ONDA MT8205 4G LTE
Bjørn Mork [Thu, 17 Jan 2013 14:14:22 +0000 (15:14 +0100)]
USB: option: blacklist network interface on ONDA MT8205 4G LTE

The driver description files gives these names to the vendor specific
functions on this modem:

 Diag   VID_19D2&PID_0265&MI_00
 NMEA   VID_19D2&PID_0265&MI_01
 AT cmd VID_19D2&PID_0265&MI_02
 Modem  VID_19D2&PID_0265&MI_03
 Net    VID_19D2&PID_0265&MI_04

Signed-off-by: Bjørn Mork <bjorn@mork.no>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agostaging/sb105x: PARPORT config is not good enough must use PARPORT_PC
Steven Rostedt [Sat, 12 Jan 2013 01:17:01 +0000 (20:17 -0500)]
staging/sb105x: PARPORT config is not good enough must use PARPORT_PC

The sb105x driver calls parport_pc_probe_port() which isn't defined if
PARPORT_PC isn't enabled. Protecting it with CONFIG_PARPORT is not good
enough, must protect it with CONFIG_PARPORT_PC.

Reported-by: Randy Dunlap <rdunlap@infradead.org>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agostaging: wlan-ng: Fix clamping of returned SSID length
Tormod Volden [Wed, 9 Jan 2013 21:23:32 +0000 (22:23 +0100)]
staging: wlan-ng: Fix clamping of returned SSID length

Commit 2e254212 broke listing of available network names, since it
clamped the length of the returned SSID to WLAN_BSSID_LEN (6) instead of
WLAN_SSID_MAXLEN (32).

https://bugzilla.kernel.org/show_bug.cgi?id=52501

Signed-off-by: Tormod Volden <debian.tormod@gmail.com>
Cc: stable <stable@vger.kernel.org> # 3.4+
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoMerge tag 'iio-fixes-for-3.8b' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23...
Greg Kroah-Hartman [Fri, 18 Jan 2013 00:34:33 +0000 (16:34 -0800)]
Merge tag 'iio-fixes-for-3.8b' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-linus

Jonathan writes:

  Second round of fixes for IIO post 3.8-rc1

  Two tiny fixes
  * A build warning fix due to signed / unsigned comparison
  * Missing sign extension in adis16080

11 years ago8250/16?50: Add support for Broadcom TruManage redirected serial port
Stephen Hurd [Thu, 17 Jan 2013 22:14:53 +0000 (14:14 -0800)]
8250/16?50: Add support for Broadcom TruManage redirected serial port

Add support for the UART device present in Broadcom TruManage capable
NetXtreme chips (ie: 5761m 5762, and 5725).

This implementation has a hidden transmit FIFO, so running in single-byte
interrupt mode results in too many interrupts.  The UART_CAP_HFIFO
capability was added to track this.  It continues to reload the THR as long
as the THRE and TSRE bits are set in the LSR up to a specified limit (1024
is used here).

Signed-off-by: Stephen Hurd <shurd@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agopty: return EINVAL for TIOCGPTN for BSD ptys
Jiri Slaby [Fri, 11 Jan 2013 11:06:27 +0000 (12:06 +0100)]
pty: return EINVAL for TIOCGPTN for BSD ptys

Commit bbb63c514a3464342967237a51a21ea8f61ab951 (drivers:tty:fix up
ENOIOCTLCMD error handling) changed the default return value from tty
ioctl to be ENOTTY and not EINVAL. This is appropriate.

But in case of TIOCGPTN for the old BSD ptys glibc started failing
because it expects EINVAL to be returned. Only then it continues to
obtain the pts name the other way around.

So fix this case by explicit return of EINVAL in this case.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Reported-by: Florian Westphal <fw@strlen.de>
Cc: Alan Cox <alan@linux.intel.com>
Cc: stable <stable@vger.kernel.org> # 3.7+
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agostaging: vt6656: Fix inconsistent structure packing
Ben Hutchings [Mon, 14 Jan 2013 01:29:17 +0000 (01:29 +0000)]
staging: vt6656: Fix inconsistent structure packing

vt6656 has several headers that use the #pragma pack(1) directive to
enable structure packing, but never disable it.  The layout of
structures defined in other headers can then depend on which order the
various headers are included in, breaking the One Definition Rule.

In practice this resulted in crashes on x86_64 until the order of header
inclusion was changed for some files in commit 11d404cb56ecd ('staging:
vt6656: fix headers and add cfg80211.').  But we need a proper fix that
won't be affected by future changes to the order of inclusion.

This removes the #pragma pack(1) directives and adds __packed to the
structure definitions for which packing appears to have been intended.

Reported-and-tested-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoDrivers: hv: balloon: Fix a memory leak
K. Y. Srinivasan [Tue, 11 Dec 2012 19:07:17 +0000 (11:07 -0800)]
Drivers: hv: balloon: Fix a memory leak

The send buffer was being leaked; fix it.

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com>
Reported-by: Jason Wang <jasowang@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoDrivers: hv: balloon: Fix a bug in the definition of struct dm_info_msg
K. Y. Srinivasan [Thu, 6 Dec 2012 19:06:54 +0000 (11:06 -0800)]
Drivers: hv: balloon: Fix a bug in the definition of struct dm_info_msg

There is bug in the definition of struct dm_info_msg. This patch fixes
the definition of this structure and makes the corresponding adjustments.

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoRevert "drm/radeon: do not move bo to different placement at each cs"
Alex Deucher [Thu, 17 Jan 2013 18:10:50 +0000 (13:10 -0500)]
Revert "drm/radeon: do not move bo to different placement at each cs"

This reverts commit d025e9e2b890db679f1246037bf65bd4be512627.

This causes corruption for a number of users and needs further
investigation in the next cycle.
https://bugzilla.kernel.org/show_bug.cgi?id=52491
https://bugs.freedesktop.org/show_bug.cgi?id=58659
http://lists.freedesktop.org/archives/dri-devel/2013-January/032961.html

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
11 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Linus Torvalds [Thu, 17 Jan 2013 16:56:30 +0000 (08:56 -0800)]
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux

Pull more s390 patches from Martin Schwidefsky:
 "A couple of bug fixes: one of the transparent huge page primitives is
  broken, the sched_clock function overflows after 417 days, the XFS
  module has grown too large for -fpic and the new pci code has broken
  normal channel subsystem notifications."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
  s390/chsc: fix SEI usage
  s390/time: fix sched_clock() overflow
  s390: use -fPIC for module compile
  s390/mm: fix pmd_pfn() for thp

11 years agodrm/i915: fix FORCEWAKE posting reads
Jani Nikula [Thu, 17 Jan 2013 08:24:09 +0000 (10:24 +0200)]
drm/i915: fix FORCEWAKE posting reads

We stopped reading FORCEWAKE for posting reads in

commit 8dee3eea3ccd3b6c00a8d3a08dd715d6adf737dd
Author: Ben Widawsky <ben@bwidawsk.net>
Date:   Sat Sep 1 22:59:50 2012 -0700

    drm/i915: Never read FORCEWAKE

and started using something from the same cacheline instead. On the
bug reporter's machine this broke entering rc6 states after a
suspend/resume cycle. It turns out reading ECOBUS as posting read
worked fine, while GTFIFODBG did not, preventing RC6 states after
suspend/resume per the bug report referenced below. It's not entirely
clear why, but clearly GTFIFODBG was nowhere near the same cacheline
or address range as FORCEWAKE.

Trying out various registers for posting reads showed that all tested
registers for which NEEDS_FORCE_WAKE() (in i915_drv.c) returns true
work. Conversely, most (but not quite all) registers for which
NEEDS_FORCE_WAKE() returns false do not work. Details in the referenced
bug.

Based on the above, add posting reads on ECOBUS where GTFIFODBG was
previously relied on.

In true cargo cult spirit, add posting reads for FORCEWAKE_VLV writes as
well, but instead of ECOBUS, use FORCEWAKE_ACK_VLV which is in the same
address range as FORCEWAKE_VLV.

v2: Add more details to the commit message. No functional changes.

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=52411
Reported-and-tested-by: Alexander Bersenev <bay@hackerdom.ru>
CC: Ben Widawsky <ben@bwidawsk.net>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: stable@vger.kernel.org
[danvet: add cc: stable and make the commit message a bit clearer that
this is a regression fix and what exactly broke.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
11 years agoMerge tag 'for-linus-v3.8-rc4' of git://oss.sgi.com/xfs/xfs
Linus Torvalds [Thu, 17 Jan 2013 00:19:54 +0000 (16:19 -0800)]
Merge tag 'for-linus-v3.8-rc4' of git://oss.sgi.com/xfs/xfs

Pull xfs bugfixes from Ben Myers:

 - fix(es) for compound buffers

 - fix for dquot soft timer asserts due to overflow of d_blk_softlimit

 - fix for regression in dir v2 code introduced in commit 20f7e9f3726a
   ("xfs: factor dir2 block read operations")

* tag 'for-linus-v3.8-rc4' of git://oss.sgi.com/xfs/xfs:
  xfs: recalculate leaf entry pointer after compacting a dir2 block
  xfs: remove int casts from debug dquot soft limit timer asserts
  xfs: fix the multi-segment log buffer format
  xfs: fix segment in xfs_buf_item_format_segment
  xfs: rename bli_format to avoid confusion with bli_formats
  xfs: use b_maps[] for discontiguous buffers

11 years agoMerge tag 'pm+acpi-for-3.8-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Wed, 16 Jan 2013 22:34:52 +0000 (14:34 -0800)]
Merge tag 'pm+acpi-for-3.8-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull ACPI and power management fixes from Rafael Wysocki:

 - cpuidle regression fix related to the initialization of state
   kobjects from Krzysztof Mazur.

 - cpuidle fix removing some not very useful code and making some
   user-visible problems go away at the same time.  From Daniel Lezcano.

 - ACPI build fix from Yinghai Lu.

* tag 'pm+acpi-for-3.8-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  cpuidle: remove the power_specified field in the driver
  ACPI / glue: Fix build with ACPI_GLUE_DEBUG set
  cpuidle: fix number of initialized/destroyed states

11 years agoxfs: recalculate leaf entry pointer after compacting a dir2 block
Eric Sandeen [Thu, 10 Jan 2013 16:41:48 +0000 (10:41 -0600)]
xfs: recalculate leaf entry pointer after compacting a dir2 block

Dave Jones hit this assert when doing a compile on recent git, with
CONFIG_XFS_DEBUG enabled:

XFS: Assertion failed: (char *)dup - (char *)hdr == be16_to_cpu(*xfs_dir2_data_unused_tag_p(dup)), file: fs/xfs/xfs_dir2_data.c, line: 828

Upon further digging, the tag found by xfs_dir2_data_unused_tag_p(dup)
contained "2" and not the proper offset, and I found that this value was
changed after the memmoves under "Use a stale leaf for our new entry."
in xfs_dir2_block_addname(), i.e.

                        memmove(&blp[mid + 1], &blp[mid],
                                (highstale - mid) * sizeof(*blp));

overwrote it.

What has happened is that the previous call to xfs_dir2_block_compact()
has rearranged things; it changes btp->count as well as the
blp array.  So after we make that call, we must recalculate the
proper pointer to the leaf entries by making another call to
xfs_dir2_block_leaf_p().

Dave provided a metadump image which led to a simple reproducer
(create a particular filename in the affected directory) and this
resolves the testcase as well as the bug on his live system.

Thanks also to dchinner for looking at this one with me.

Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Tested-by: Dave Jones <davej@redhat.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Mark Tinguely <tinguely@sgi.com>
Signed-off-by: Ben Myers <bpm@sgi.com>
11 years agoxfs: remove int casts from debug dquot soft limit timer asserts
Brian Foster [Fri, 21 Dec 2012 15:45:17 +0000 (10:45 -0500)]
xfs: remove int casts from debug dquot soft limit timer asserts

The int casts here make it easy to trigger an assert with a large
soft limit. For example, set a >4TB soft limit on an empty volume
to reproduce a (0 > -x) comparison due to an overflow of
d_blk_softlimit.

Signed-off-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Ben Myers <bpm@sgi.com>
Signed-off-by: Ben Myers <bpm@sgi.com>
11 years agoxfs: fix the multi-segment log buffer format
Mark Tinguely [Tue, 4 Dec 2012 23:18:05 +0000 (17:18 -0600)]
xfs: fix the multi-segment log buffer format

Per Dave Chinner suggestion, this patch:
 1) Corrects the detection of whether a multi-segment buffer is
    still tracking data.
 2) Clears all the buffer log formats for a multi-segment buffer.

Signed-off-by: Mark Tinguely <tinguely@sgi.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Ben Myers <bpm@sgi.com>
11 years agoxfs: fix segment in xfs_buf_item_format_segment
Mark Tinguely [Tue, 4 Dec 2012 23:18:04 +0000 (17:18 -0600)]
xfs: fix segment in xfs_buf_item_format_segment

Not every segment in a multi-segment buffer is dirty in a
transaction and they will not be outputted. The assert in
xfs_buf_item_format_segment() that checks for the at least
one chunk of data in the segment to be used is not necessary
true for multi-segmented buffers.

Signed-off-by: Mark Tinguely <tinguely@sgi.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Ben Myers <bpm@sgi.com>
11 years agoxfs: rename bli_format to avoid confusion with bli_formats
Mark Tinguely [Tue, 4 Dec 2012 23:18:03 +0000 (17:18 -0600)]
xfs: rename bli_format to avoid confusion with bli_formats

Rename the bli_format structure to __bli_format to avoid
accidently confusing them with the bli_formats pointer.

Signed-off-by: Mark Tinguely <tinguely@sgi.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Ben Myers <bpm@sgi.com>
11 years agoxfs: use b_maps[] for discontiguous buffers
Mark Tinguely [Tue, 4 Dec 2012 23:18:02 +0000 (17:18 -0600)]
xfs: use b_maps[] for discontiguous buffers

Commits starting at 77c1a08 introduced a multiple segment support
to xfs_buf. xfs_trans_buf_item_match() could not find a multi-segment
buffer in the transaction because it was looking at the single segment
block number rather than the multi-segment b_maps[0].bm.bn. This
results on a recursive buffer lock that can never be satisfied.

This patch:
 1) Changed the remaining b_map accesses to be b_maps[0] accesses.
 2) Renames the single segment b_map structure to __b_map to avoid
    future confusion.

Signed-off-by: Mark Tinguely <tinguely@sgi.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Ben Myers <bpm@sgi.com>
11 years agoxen: Fix stack corruption in xen_failsafe_callback for 32bit PVOPS guests.
Andrew Cooper [Wed, 16 Jan 2013 12:00:55 +0000 (12:00 +0000)]
xen: Fix stack corruption in xen_failsafe_callback for 32bit PVOPS guests.

This fixes CVE-2013-0190 / XSA-40

There has been an error on the xen_failsafe_callback path for failed
iret, which causes the stack pointer to be wrong when entering the
iret_exc error path.  This can result in the kernel crashing.

In the classic kernel case, the relevant code looked a little like:

        popl %eax      # Error code from hypervisor
        jz 5f
        addl $16,%esp
        jmp iret_exc   # Hypervisor said iret fault
5:      addl $16,%esp
                       # Hypervisor said segment selector fault

Here, there are two identical addls on either option of a branch which
appears to have been optimised by hoisting it above the jz, and
converting it to an lea, which leaves the flags register unaffected.

In the PVOPS case, the code looks like:

        popl_cfi %eax         # Error from the hypervisor
        lea 16(%esp),%esp     # Add $16 before choosing fault path
        CFI_ADJUST_CFA_OFFSET -16
        jz 5f
        addl $16,%esp         # Incorrectly adjust %esp again
        jmp iret_exc

It is possible unprivileged userspace applications to cause this
behaviour, for example by loading an LDT code selector, then changing
the code selector to be not-present.  At this point, there is a race
condition where it is possible for the hypervisor to return back to
userspace from an interrupt, fault on its own iret, and inject a
failsafe_callback into the kernel.

This bug has been present since the introduction of Xen PVOPS support
in commit 5ead97c84 (xen: Core Xen implementation), in 2.6.23.

Signed-off-by: Frediano Ziglio <frediano.ziglio@citrix.com>
Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>
Cc: stable@vger.kernel.org
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
11 years agoTell the world we gave up on pushing CC_OPTIMIZE_FOR_SIZE
Kirill Smelkov [Fri, 2 Nov 2012 11:41:01 +0000 (15:41 +0400)]
Tell the world we gave up on pushing CC_OPTIMIZE_FOR_SIZE

In commit 281dc5c5ec0f ("Give up on pushing CC_OPTIMIZE_FOR_SIZE") we
already changed the actual default value, but the help-text still
suggested 'y'. Fix the help text too, for all the same reasons.

Sadly, -Os keeps on generating some very suboptimal code for certain
cases, to the point where any I$ miss upside is swamped by the downside.
The main ones are:

 - using "rep movsb" for memcpy, even on CPU's where that is
   horrendously bad for performance.

 - not honoring branch prediction information, so any I$ footprint you
   win from smaller code, you lose from less code density in the I$.

 - using divide instructions when that is very expensive.

Signed-off-by: Kirill Smelkov <kirr@mns.spb.ru>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
11 years agomfd, TWL4030: TWL4030 need select REGMAP_I2C
Chuansheng Liu [Mon, 24 Dec 2012 14:19:56 +0000 (22:19 +0800)]
mfd, TWL4030: TWL4030 need select REGMAP_I2C

Fix the build error:

  drivers/built-in.o: In function `twl_probe':
  drivers/mfd/twl-core.c:1256: undefined reference to `devm_regmap_init_i2c'
  make: *** [vmlinux] Error 1

Signed-off-by: liu chuansheng <chuansheng.liu@intel.com>
Acked-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
[ Samuel is busy, taking it directly  - Linus ]
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
11 years agodrivers/base/cpu.c: Fix typo in comment
Ralf Baechle [Tue, 15 Jan 2013 14:27:46 +0000 (15:27 +0100)]
drivers/base/cpu.c: Fix typo in comment

[ We should make fun of people who can't speel too, but then we'd have
  no time for any real work at all  - Linus ]

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
11 years agolockdep, rwsem: fix down_write_nest_lock() if !CONFIG_DEBUG_LOCK_ALLOC
Jiri Kosina [Tue, 15 Jan 2013 19:12:37 +0000 (20:12 +0100)]
lockdep, rwsem: fix down_write_nest_lock() if !CONFIG_DEBUG_LOCK_ALLOC

Commit 1b963c81b145 ("lockdep, rwsem: provide down_write_nest_lock()")
contains a bug in a codepath when CONFIG_DEBUG_LOCK_ALLOC is disabled,
which causes down_read() to be called instead of down_write() by mistake
on such configurations.  Fix that.

Reported-and-tested-by: Andrew Clayton <andrew@digital-domain.net>
Reported-and-tested-by: Zlatko Calusic <zlatko.calusic@iskon.hr>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Reviewed-by: Rik van Riel <riel@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
11 years agoMerge tag 'sound-3.8' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Linus Torvalds [Wed, 16 Jan 2013 19:33:52 +0000 (11:33 -0800)]
Merge tag 'sound-3.8' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull second round of sound fixes from Takashi Iwai:
 "Yet a few more fixes popped up in this week.

  The biggest change here is the addition of pinctrl support for Atmel,
  which turned out to be almost mandatory to make things working.

  The rest are a few fixes for M-Audio usb-audio device and a fix for
  regression of HD-audio HDMI codecs with alsactl in the recent kernel."

* tag 'sound-3.8' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ALSA: hda/hdmi - Work around "alsactl restore" errors
  ALSA: usb-audio: selector map for M-Audio FT C400
  ALSA: usb-audio: M-Audio FT C400 skip packet quirk
  ALSA: usb-audio: correct M-Audio C400 clock source quirk
  ALSA: usb - fix race in creation of M-Audio Fast track pro driver
  ASoC: atmel-ssc: add pinctrl selection to driver
  ARM: at91/dts: add pinctrl support for SSC peripheral

11 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending
Linus Torvalds [Wed, 16 Jan 2013 19:13:39 +0000 (11:13 -0800)]
Merge git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending

Pull scsi target fixes from Nicholas Bellinger:
 "This includes an important >= v3.6 regression bugfix for active I/O
  shutdown (Roland), some TMR related failure / corner cases fixes for
  long outstanding I/O (Roland), two FCoE target mode fabric fabric role
  fixes (MDR), a fix for an incorrect sense code during LUN
  communication failure (Dr. Hannes), plus a handful of other minor
  fixes.

  There are still some outstanding zero-length control CDB regression
  fixes that need to be addressed for v3.8, that will be coming in a
  follow-up PULL request."

* git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending:
  iscsi-target: Fix CmdSN comparison (use cmd->cmd_sn instead of cmd->stat_sn)
  target: Release se_cmd when LUN lookup fails for TMR
  target: Fix use-after-free in LUN RESET handling
  target: Fix missing CMD_T_ACTIVE bit regression for pending WRITEs
  tcm_fc: Do not report target role when target is not defined
  tcm_fc: Do not indicate retry capability to initiators
  target: Use TCM_NO_SENSE for initialisation
  target: Introduce TCM_NO_SENSE
  target: use correct sense code for LUN communication failure

11 years agoMerge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
Linus Torvalds [Wed, 16 Jan 2013 18:55:10 +0000 (10:55 -0800)]
Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs

Pull ext3 and udf fixes from Jan Kara:
 "One ext3 performance regression fix and one udf regression fix (oops
  on interrupted mount)."

* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
  UDF: Fix a null pointer dereference in udf_sb_free_partitions
  jbd: don't wake kjournald unnecessarily

11 years agoMerge git://git.kernel.org/pub/scm/virt/kvm/kvm
Linus Torvalds [Wed, 16 Jan 2013 18:17:09 +0000 (10:17 -0800)]
Merge git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull s390 KVM fix from Gleb Natapov.

* git://git.kernel.org/pub/scm/virt/kvm/kvm:
  s390/kvm: Fix BUG in include/linux/kvm_host.h:745

11 years agoMerge tag 'sh-for-linus' of git://github.com/pmundt/linux-sh
Linus Torvalds [Wed, 16 Jan 2013 18:13:04 +0000 (10:13 -0800)]
Merge tag 'sh-for-linus' of git://github.com/pmundt/linux-sh

Pull SuperH fixes from Paul Mundt.

* tag 'sh-for-linus' of git://github.com/pmundt/linux-sh:
  sh: ecovec: add sample amixer settings
  sh: Fix up stack debugging build.
  sh: wire up finit_module syscall.
  sh: Fix FDPIC binary loader
  sh: clkfwk: bugfix: sh_clk_div_enable() care sh_clk_div_set_rate() if div6
  sh: define TASK_UNMAPPED_BASE as a page aligned constant

11 years agoMerge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas...
Linus Torvalds [Wed, 16 Jan 2013 17:44:40 +0000 (09:44 -0800)]
Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas/linux-aarch64

Pull arm64 fixes from Catalin Marinas:
 - Page protection fixes, including proper PAGE_NONE handling
 - Timezone vdso sequence counting fix
 - Additional compat syscall wiring

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas/linux-aarch64:
  arm64: compat: add syscall table entries for new syscalls
  arm64: mm: introduce present, faulting entries for PAGE_NONE
  arm64: mm: only wrprotect clean ptes if they are present
  arm64: vdso: remove broken, redundant sequence counting for timezones

11 years agoMerge branch 'x86/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Linus Torvalds [Wed, 16 Jan 2013 17:11:50 +0000 (09:11 -0800)]
Merge branch 'x86/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 fixes from Peter Anvin:
 "This is mainly a workaround for a bug in Sandy Bridge graphics which
  causes corruption of certain memory pages."

* 'x86/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/Sandy Bridge: Sandy Bridge workaround depends on CONFIG_PCI
  x86/Sandy Bridge: mark arrays in __init functions as __initconst
  x86/Sandy Bridge: reserve pages when integrated graphics is present
  x86, efi: correct precedence of operators in setup_efi_pci

11 years agoMAINTAINERS: update email address for Timur Tabi
Timur Tabi [Tue, 15 Jan 2013 20:19:45 +0000 (14:19 -0600)]
MAINTAINERS: update email address for Timur Tabi

Timur Tabi no longer works for Freescale, so update the email address
and status for all of his maintained projects.

Also mark the QE library as orphaned, for lack of interest in
maintaining it.

The CS4270 driver is marked as "Odd Fixes" because appropriate hardware
is no longer available.

Signed-off-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
11 years agofirmware: make sure the fw file size is not 0
Luciano Coelho [Tue, 15 Jan 2013 08:43:43 +0000 (10:43 +0200)]
firmware: make sure the fw file size is not 0

If the requested firmware file size is 0 bytes in the filesytem, we
will try to vmalloc(0), which causes a warning:

  vmalloc: allocation failure: 0 bytes
  kworker/1:1: page allocation failure: order:0, mode:0xd2
    __vmalloc_node_range+0x164/0x208
    __vmalloc_node+0x4c/0x58
    vmalloc+0x38/0x44
    _request_firmware_load+0x220/0x6b0
    request_firmware+0x64/0xc8
    wl18xx_setup+0xb4/0x570 [wl18xx]
    wlcore_nvs_cb+0x64/0x9f8 [wlcore]
    request_firmware_work_func+0x94/0x100
    process_one_work+0x1d0/0x750
    worker_thread+0x184/0x4ac
    kthread+0xb4/0xc0

To fix this, check whether the file size is less than or equal to zero
in fw_read_file_contents().

Cc: stable <stable@vger.kernel.org> [3.7]
Signed-off-by: Luciano Coelho <coelho@ti.com>
Acked-by: Ming Lei <ming.lei@canonical.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
11 years agomodule, async: async_synchronize_full() on module init iff async is used
Tejun Heo [Wed, 16 Jan 2013 02:52:51 +0000 (18:52 -0800)]
module, async: async_synchronize_full() on module init iff async is used

If the default iosched is built as module, the kernel may deadlock
while trying to load the iosched module on device probe if the probing
was running off async.  This is because async_synchronize_full() at
the end of module init ends up waiting for the async job which
initiated the module loading.

 async A modprobe

 1. finds a device
 2. registers the block device
 3. request_module(default iosched)
4. modprobe in userland
5. load and init module
6. async_synchronize_full()

Async A waits for modprobe to finish in request_module() and modprobe
waits for async A to finish in async_synchronize_full().

Because there's no easy to track dependency once control goes out to
userland, implementing properly nested flushing is difficult.  For
now, make module init perform async_synchronize_full() iff module init
has queued async jobs as suggested by Linus.

This avoids the described deadlock because iosched module doesn't use
async and thus wouldn't invoke async_synchronize_full().  This is
hacky and incomplete.  It will deadlock if async module loading nests;
however, this works around the known problem case and seems to be the
best of bad options.

For more details, please refer to the following thread.

  http://thread.gmane.org/gmane.linux.kernel/1420814

Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: Alex Riesen <raa.lkml@gmail.com>
Tested-by: Ming Lei <ming.lei@canonical.com>
Tested-by: Alex Riesen <raa.lkml@gmail.com>
Cc: Arjan van de Ven <arjan@linux.intel.com>
Cc: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
11 years agos390/chsc: fix SEI usage
Sebastian Ott [Tue, 15 Jan 2013 18:02:01 +0000 (19:02 +0100)]
s390/chsc: fix SEI usage

cbc0dd1 "s390/pci: CHSC PCI support for error and availability events"
introduced a new SEI notification type as part of pci support.
The way SEI was called with nt2 and nt0 consecutive broke the nt0
stuff used for channel subsystem notifications.

The reason why this was broken with the mentioned patch is that you
cannot selectively disable type 0 notifications (so even when asked
for type 2 only, type 0 could be presented).

The way to do it is to tell SEI which types of notification you can
process and -this is the important part- look at the SEI result which
notification type you actually received.

Reviewed-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
Tested-by: Michael Holzheu <holzheu@linux.vnet.ibm.com>
Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
11 years agos390/time: fix sched_clock() overflow
Heiko Carstens [Mon, 14 Jan 2013 15:55:55 +0000 (16:55 +0100)]
s390/time: fix sched_clock() overflow

Converting a 64 Bit TOD format value to nanoseconds means that the value
must be divided by 4.096. In order to achieve that we multiply with 125
and divide by 512.
When used within sched_clock() this triggers an overflow after appr.
417 days. Resulting in a sched_clock() return value that is much smaller
than previously and therefore may cause all sort of weird things in
subsystems that rely on a monotonic sched_clock() behaviour.

To fix this implement a tod_to_ns() helper function which converts TOD
values without overflow and call this function from both places that
open coded the conversion: sched_clock() and kvm_s390_handle_wait().

Cc: stable@kernel.org
Reviewed-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
11 years agodrm/i915: Invalidate the relocation presumed_offsets along the slow path
Chris Wilson [Tue, 15 Jan 2013 16:17:54 +0000 (16:17 +0000)]
drm/i915: Invalidate the relocation presumed_offsets along the slow path

In the slow path, we are forced to copy the relocations prior to
acquiring the struct mutex in order to handle pagefaults. We forgo
copying the new offsets back into the relocation entries in order to
prevent a recursive locking bug should we trigger a pagefault whilst
holding the mutex for the reservations of the execbuffer. Therefore, we
need to reset the presumed_offsets just in case the objects are rebound
back into their old locations after relocating for this exexbuffer - if
that were to happen we would assume the relocations were valid and leave
the actual pointers to the kernels dangling, instant hang.

Fixes regression from commit bcf50e2775bbc3101932d8e4ab8c7902aa4163b4
Author: Chris Wilson <chris@chris-wilson.co.uk>
Date:   Sun Nov 21 22:07:12 2010 +0000

    drm/i915: Handle pagefaults in execbuffer user relocations

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=55984
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Daniel Vetter <daniel.vetter@fwll.ch>
Cc: stable@vger.kernel.org
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
11 years agosh: ecovec: add sample amixer settings
Kuninori Morimoto [Tue, 25 Dec 2012 04:04:20 +0000 (20:04 -0800)]
sh: ecovec: add sample amixer settings

FSI - DA7210 needs amixer settings to use it.
This patch adds quick setting guide

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
11 years agodrm/i915/eDP: do not write power sequence registers for ghost eDP
Jani Nikula [Wed, 16 Jan 2013 08:53:40 +0000 (10:53 +0200)]
drm/i915/eDP: do not write power sequence registers for ghost eDP

Some machines detect an eDP port even if it's not really there, and eDP
initialization has a fail path for this. Typically such machines have an
LVDS display instead. A regression introduced in

commit 82ed61fa1a4e08d5f9e86fb1b715b50ed678b6ac
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date:   Sat Oct 20 20:57:41 2012 +0200

    drm/i915: make edp panel power sequence setup more robust

updated the power sequence registers PCH_PP_ON_DELAYS, PCH_PP_OFF_DELAYS,
and PCH_PP_DIVISOR also in the ghost eDP case, messing up the LVDS display.

Split the power sequencer initialization into two, delaying the register
updates until after we know the eDP is real.

Note: Keep the PP_CONTROL unlocking in the first part, even if it does not
update registers, per the commit message of the above mentioned commit.

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=52601
Reported-and-tested-by: Ryan Coe <ryan@rycomotorsports.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
11 years agoserial:ifx6x60:Keep word size accordance with SPI controller
channing [Wed, 16 Jan 2013 05:14:20 +0000 (13:14 +0800)]
serial:ifx6x60:Keep word size accordance with SPI controller

As protocol driver, IFX SPI driver initiate to setup SPI master with default
SPI word size as 16 bit/word, however, SPI master may not adopt this default
value due to SPI controller's capability, it might choose an available value by
itself and set it to spi_device.bits_per_word. In order to keep align with
Controller, IFX driver should make use of this value during SPI transfer,
but the default one.

Signed-off-by: Chen Jun <jun.d.chen@intel.com>
Signed-off-by: channing <chao.bi@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agotty: 8250_dw: Fix inverted arguments to serial_out in IRQ handler
Maxime Ripard [Mon, 14 Jan 2013 19:09:26 +0000 (20:09 +0100)]
tty: 8250_dw: Fix inverted arguments to serial_out in IRQ handler

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoserial: samsung: remove redundant setting of line config during port reset
Thomas Abraham [Mon, 31 Dec 2012 21:42:45 +0000 (13:42 -0800)]
serial: samsung: remove redundant setting of line config during port reset

The setting of uart line control configuration in s3c24xx_serial_resetport
is can be removed since the 'set_termios' call will overwrite any ULCON
register setting which s3c24xx_serial_resetport does.

Acked-by: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Thomas Abraham <thomas.ab@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoRevert "xen/smp: Fix CPU online/offline bug triggering a BUG: scheduling while atomic."
Konrad Rzeszutek Wilk [Wed, 16 Jan 2013 03:40:26 +0000 (22:40 -0500)]
Revert "xen/smp: Fix CPU online/offline bug triggering a BUG: scheduling while atomic."

This reverts commit 41bd956de3dfdc3a43708fe2e0c8096c69064a1e.

The fix is incorrect and not appropiate for the latest kernels.
In fact it _causes_ the BUG: scheduling while atomic while
doing vCPU hotplug.

Suggested-by: Wei Liu <wei.liu2@citrix.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
11 years agoserial:ifx6x60:Delete SPI timer when shut down port
chao bi [Wed, 12 Dec 2012 03:40:56 +0000 (11:40 +0800)]
serial:ifx6x60:Delete SPI timer when shut down port

When shut down SPI port, it's possible that MRDY has been asserted and a SPI
timer was activated waiting for SRDY assert, in the case, it needs to delete
this timer.

Signed-off-by: Chen Jun <jun.d.chen@intel.com>
Signed-off-by: channing <chao.bi@intel.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agotty/8250: The correct device id for this card is 0x0022
Matt Schulte [Fri, 7 Dec 2012 04:19:59 +0000 (22:19 -0600)]
tty/8250: The correct device id for this card is 0x0022

The correct device id for this card is 0x0022

Signed-off-by: Matt Schulte <matts@commtech-fastcom.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agotty/8250: pbn_b0_8_1152000_200 is supposed to be an 8 port definition
Matt Schulte [Fri, 7 Dec 2012 04:19:58 +0000 (22:19 -0600)]
tty/8250: pbn_b0_8_1152000_200 is supposed to be an 8 port definition

tty/8250: pbn_b0_8_1152000_200 is supposed to be an 8 port definition

Signed-off-by: Matt Schulte <matts@commtech-fastcom.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agotty: serial: vt8500: fix return value check in vt8500_serial_probe()
Wei Yongjun [Sun, 2 Dec 2012 10:10:44 +0000 (05:10 -0500)]
tty: serial: vt8500: fix return value check in vt8500_serial_probe()

In case of error, function of_clk_get() returns ERR_PTR()
and never returns NULL. The NULL test in the return value
check should be replaced with IS_ERR().

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Acked-by: Tony Prisk <linux@prisktech.co.nz>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoserial: mxs-auart: Index is unsigned
fabio.estevam@freescale.com [Tue, 8 Jan 2013 01:11:06 +0000 (23:11 -0200)]
serial: mxs-auart: Index is unsigned

Fix the following warning when building with W=1 option:

drivers/tty/serial/mxs-auart.c: In function 'mxs_auart_tx_chars':
drivers/tty/serial/mxs-auart.c:272:10: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Acked-by: Marek Vasut <marex@denx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agomxs: uart: fix setting RTS from software
Steffen Trumtrar [Thu, 13 Dec 2012 13:27:43 +0000 (14:27 +0100)]
mxs: uart: fix setting RTS from software

With the patch "serial: mxs-auart: fix the wrong RTS hardware flow control" the
mainline mxs-uart driver now sets RTSEN only when hardware flow control is
enabled via software. It is not possible any longer to set RTS manually via
software. However, the manual modification is a valid operation.
Regain the possibility to set RTS via software and only set RTSEN when hardware
flow control is explicitly enabled via settermios cflag CRTSCTS.

Signed-off-by: Steffen Trumtrar <s.trumtrar@pengutronix.de>
Cc: stable <stable@vger.kernel.org>
Reviewed-by: Huang Shijie <b32955@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoxen/gntdev: remove erronous use of copy_to_user
Daniel De Graaf [Wed, 2 Jan 2013 22:57:13 +0000 (17:57 -0500)]
xen/gntdev: remove erronous use of copy_to_user

Since there is now a mapping of granted pages in kernel address space in
both PV and HVM, use it for UNMAP_NOTIFY_CLEAR_BYTE instead of accessing
memory via copy_to_user and triggering sleep-in-atomic warnings.

Signed-off-by: Daniel De Graaf <dgdegra@tycho.nsa.gov>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
11 years agoxen/gntdev: correctly unmap unlinked maps in mmu notifier
Daniel De Graaf [Wed, 2 Jan 2013 22:57:12 +0000 (22:57 +0000)]
xen/gntdev: correctly unmap unlinked maps in mmu notifier

If gntdev_ioctl_unmap_grant_ref is called on a range before unmapping
it, the entry is removed from priv->maps and the later call to
mn_invl_range_start won't find it to do the unmapping. Fix this by
creating another list of freeable maps that the mmu notifier can search
and use to unmap grants.

Signed-off-by: Daniel De Graaf <dgdegra@tycho.nsa.gov>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
11 years agoxen/gntdev: fix unsafe vma access
Daniel De Graaf [Wed, 2 Jan 2013 22:57:11 +0000 (22:57 +0000)]
xen/gntdev: fix unsafe vma access

In gntdev_ioctl_get_offset_for_vaddr, we need to hold mmap_sem while
calling find_vma() to avoid potentially having the result freed out from
under us.  Similarly, the MMU notifier functions need to synchronize with
gntdev_vma_close to avoid map->vma being freed during their iteration.

Signed-off-by: Daniel De Graaf <dgdegra@tycho.nsa.gov>
Reported-by: Al Viro <viro@ZenIV.linux.org.uk>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
11 years agoxen/privcmd: Fix mmap batch ioctl.
Andres Lagar-Cavilla [Tue, 15 Jan 2013 03:35:40 +0000 (22:35 -0500)]
xen/privcmd: Fix mmap batch ioctl.

1. If any individual mapping error happens, the V1 case will mark *all*
operations as failed. Fixed.

2. The err_array was allocated with kcalloc, resulting in potentially O(n) page
allocations. Refactor code to not use this array.

Signed-off-by: Andres Lagar-Cavilla <andres@lagarcavilla.org>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
11 years agoMerge tag 'v3.7' into stable/for-linus-3.8
Konrad Rzeszutek Wilk [Tue, 15 Jan 2013 20:58:25 +0000 (15:58 -0500)]
Merge tag 'v3.7' into stable/for-linus-3.8

Linux 3.7

* tag 'v3.7': (833 commits)
  Linux 3.7
  Input: matrix-keymap - provide proper module license
  Revert "revert "Revert "mm: remove __GFP_NO_KSWAPD""" and associated damage
  ipv4: ip_check_defrag must not modify skb before unsharing
  Revert "mm: avoid waking kswapd for THP allocations when compaction is deferred or contended"
  inet_diag: validate port comparison byte code to prevent unsafe reads
  inet_diag: avoid unsafe and nonsensical prefix matches in inet_diag_bc_run()
  inet_diag: validate byte code to prevent oops in inet_diag_bc_run()
  inet_diag: fix oops for IPv4 AF_INET6 TCP SYN-RECV state
  mm: vmscan: fix inappropriate zone congestion clearing
  vfs: fix O_DIRECT read past end of block device
  net: gro: fix possible panic in skb_gro_receive()
  tcp: bug fix Fast Open client retransmission
  tmpfs: fix shared mempolicy leak
  mm: vmscan: do not keep kswapd looping forever due to individual uncompactable zones
  mm: compaction: validate pfn range passed to isolate_freepages_block
  mmc: sh-mmcif: avoid oops on spurious interrupts (second try)
  Revert misapplied "mmc: sh-mmcif: avoid oops on spurious interrupts"
  mmc: sdhci-s3c: fix missing clock for gpio card-detect
  lib/Makefile: Fix oid_registry build dependency
  ...

Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Conflicts:
arch/arm/xen/enlighten.c
drivers/xen/Makefile

[We need to have the v3.7 base as the 'for-3.8' was based off v3.7-rc3
and there are some patches in v3.7-rc6 that we to have in our branch]

11 years agoXen: properly bound buffer access when parsing cpu/*/availability
Jan Beulich [Tue, 15 Jan 2013 13:31:43 +0000 (13:31 +0000)]
Xen: properly bound buffer access when parsing cpu/*/availability

At the same time reduce the local buffers to 16 bytes each.

Signed-off-by: Jan Beulich <jbeulich@suse.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
11 years agoxen/grant-table: correctly initialize grant table version 1
Matt Wilson [Tue, 15 Jan 2013 13:21:27 +0000 (13:21 +0000)]
xen/grant-table: correctly initialize grant table version 1

Commit 85ff6acb075a484780b3d763fdf41596d8fc0970 (xen/granttable: Grant
tables V2 implementation) changed the GREFS_PER_GRANT_FRAME macro from
a constant to a conditional expression. The expression depends on
grant_table_version being appropriately set. Unfortunately, at init
time grant_table_version will be 0. The GREFS_PER_GRANT_FRAME
conditional expression checks for "grant_table_version == 1", and
therefore returns the number of grant references per frame for v2.

This causes gnttab_init() to allocate fewer pages for gnttab_list, as
a frame can old half the number of v2 entries than v1 entries. After
gnttab_resume() is called, grant_table_version is appropriately
set. nr_init_grefs will then be miscalculated and gnttab_free_count
will hold a value larger than the actual number of free gref entries.

If a guest is heavily utilizing improperly initialized v1 grant
tables, memory corruption can occur. One common manifestation is
corruption of the vmalloc list, resulting in a poisoned pointer
derefrence when accessing /proc/meminfo or /proc/vmallocinfo:

[   40.770064] BUG: unable to handle kernel paging request at 0000200200001407
[   40.770083] IP: [<ffffffff811a6fb0>] get_vmalloc_info+0x70/0x110
[   40.770102] PGD 0
[   40.770107] Oops: 0000 [#1] SMP
[   40.770114] CPU 10

This patch introduces a static variable, grefs_per_grant_frame, to
cache the calculated value. gnttab_init() now calls
gnttab_request_version() early so that grant_table_version and
grefs_per_grant_frame can be appropriately set. A few BUG_ON()s have
been added to prevent this type of bug from reoccurring in the future.

Signed-off-by: Matt Wilson <msw@amazon.com>
Reviewed-and-Tested-by: Steven Noonan <snoonan@amazon.com>
Acked-by: Ian Campbell <Ian.Campbell@citrix.com>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Annie Li <annie.li@oracle.com>
Cc: xen-devel@lists.xen.org
Cc: linux-kernel@vger.kernel.org
Cc: stable@vger.kernel.org # v3.3 and newer
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
11 years agox86/xen : Fix the wrong check in pciback
Yang Zhang [Thu, 22 Nov 2012 02:20:23 +0000 (10:20 +0800)]
x86/xen : Fix the wrong check in pciback

Fix the wrong check in pciback.

Signed-off-by: Yang Zhang <yang.z.zhang@Intel.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
11 years agoarm64: compat: add syscall table entries for new syscalls
Will Deacon [Mon, 14 Jan 2013 14:45:46 +0000 (14:45 +0000)]
arm64: compat: add syscall table entries for new syscalls

There have been a number of new syscalls introduced to arch/arm/ since
the compat layer was implemented for arm64, so add pointers to the
relevant functions to the compat syscall table.

Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
11 years agodrm/radeon: improve semaphore debugging on lockup
Jerome Glisse [Fri, 11 Jan 2013 20:19:43 +0000 (15:19 -0500)]
drm/radeon: improve semaphore debugging on lockup

Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
11 years agodrm/radeon: allow FP16 color clear registers on r500
Marek Olšák [Sat, 12 Jan 2013 03:19:37 +0000 (04:19 +0100)]
drm/radeon: allow FP16 color clear registers on r500

Probably not a candidate for stable kernels because of conflicts
in DRM versioning.

Signed-off-by: Marek Olšák <maraeo@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
11 years agodrm/radeon: clear reset flags if engines are idle
Alex Deucher [Mon, 14 Jan 2013 16:04:39 +0000 (11:04 -0500)]
drm/radeon: clear reset flags if engines are idle

Fixes a hard lock in the gpu reset code after the
rework for DMA support (0ecebb9e0d14e9948e0b1529883a776758117d6f
"drm/radeon: switch to a finer grained reset for evergreen")
due to not bailing before the MC shutdown if the relevant engines
are idle.

Discussion:
http://lists.freedesktop.org/archives/dri-devel/2013-January/032985.html

Reported-by: Eldad Zack <eldad@fogrefinery.com>
Tested-by: Eldad Zack <eldad@fogrefinery.com>
Acked-by: Paul Menzel <paulepanter@users.sourceforge.net>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
11 years agoALSA: hda/hdmi - Work around "alsactl restore" errors
Takashi Iwai [Tue, 15 Jan 2013 13:44:41 +0000 (14:44 +0100)]
ALSA: hda/hdmi - Work around "alsactl restore" errors

When "alsactl restore" is performed on HDMI codecs, it tries to
restore the channel map value since the channel map controls are
writable.  But hdmi_chmap_ctl_put() returns -EBADFD when no PCM stream
is assigned yet, and this results in an error message from alsactl.
Although the error is harmless, it's certainly ugly and can be
regarded as a regression.

As a workaround, this patch changes the return code in such a case to
be zero for making others happy.  (A slight excuse is: when the chmap
is changed through the proper alsa-lib API, the PCM status is checked
there anyway, so we don't have to be too strict in the kernel side.)

Cc: <stable@vger.kernel.org> [v3.7+]
Signed-off-by: Takashi Iwai <tiwai@suse.de>
11 years agocpuidle: remove the power_specified field in the driver
Daniel Lezcano [Tue, 15 Jan 2013 13:18:04 +0000 (14:18 +0100)]
cpuidle: remove the power_specified field in the driver

We realized that the power usage field is never filled and when it
is filled for tegra, the power_specified flag is not set causing all
of these values to be reset when the driver is initialized with
set_power_state().

However, the power_specified flag can be simply removed under the
assumption that the states are always backward sorted, which is the
case with the current code.

This change allows the menu governor select function and the
cpuidle_play_dead() to be simplified.  Moreover, the
set_power_states() function can removed as it does not make sense
any more.

Drop the power_specified flag from struct cpuidle_driver and make
the related changes as described above.

As a consequence, this also fixes the bug where on the dynamic
C-states system, the power fields are not initialized.

[rjw: Changelog]
References: https://bugzilla.kernel.org/show_bug.cgi?id=42870
References: https://bugzilla.kernel.org/show_bug.cgi?id=43349
References: https://lkml.org/lkml/2012/10/16/518
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
11 years agodrm/i915: Record DERRMR, FORCEWAKE and RING_CTL in error-state
Chris Wilson [Tue, 15 Jan 2013 12:05:55 +0000 (12:05 +0000)]
drm/i915: Record DERRMR, FORCEWAKE and RING_CTL in error-state

These are useful for investigating hangs involving WAIT_FOR_EVENT.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
[danvet: Apply a droplet of Future-Proof in the if-ladder.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
11 years agoMerge tag 'asoc-atmel-pinctrl' of git://git.kernel.org/pub/scm/linux/kernel/git/broon...
Takashi Iwai [Tue, 15 Jan 2013 06:51:25 +0000 (07:51 +0100)]
Merge tag 'asoc-atmel-pinctrl' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus

ASoC: atmel: Fixes for pinctrl

Due to a series of problems with the handling of Atmel, a combination of
making changes that make other branches instantly buggy and a general
failure to deal with the resulting issues effectively, v3.8 Atmel audio
currently won't work at all for DT boards without adding pinctrl
definitions and a request for those.

11 years agoMerge tag 'trace-3.8-rc3-regression-fix' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Tue, 15 Jan 2013 04:22:16 +0000 (20:22 -0800)]
Merge tag 'trace-3.8-rc3-regression-fix' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace

Pull tracing regression fixes from Steven Rostedt:
 "The clean up patch commit 0fb9656d957d "tracing: Make tracing_enabled
  be equal to tracing_on" caused two regressions.

   1) The irqs off latency tracer no longer starts if tracing_on is off
      when the tracer is set, and then tracing_on is enabled.  The
      tracing_on file needs the hook that tracing_enabled had to enable
      tracers if they request it (call the tracer's start() method).

   2) That commit had a separate change that really should have been a
      separate patch, but it must have been added accidently with the -a
      option of git commit.  But as the change is still related to the
      commit it wasn't noticed in review.  That change, changed the way
      blocking is done by the trace_pipe file with respect to the
      tracing_on settings.  I've been told that this change breaks
      current userspace, and this specific change is being reverted."

* tag 'trace-3.8-rc3-regression-fix' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
  tracing: Fix regression of trace_pipe
  tracing: Fix regression with irqsoff tracer and tracing_on file

11 years agoMerge tag 'regmap-debugfs-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Tue, 15 Jan 2013 04:20:44 +0000 (20:20 -0800)]
Merge tag 'regmap-debugfs-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap

Pull regmap debugfs optimisation fixes from Mark Brown:
 "The debugfs optimisations merged in v3.8 weren't my finest hour, there
  were a number of cases that the more complex algorithm made worse
  especially around the error handling.  This patch series should
  address those issues."

* tag 'regmap-debugfs-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap:
  regmap: debugfs: Make sure we store the last entry in the offset cache
  regmap: debugfs: Ensure a correct return value for empty caches
  regmap: debugfs: Discard the cache if we fail to allocate an entry
  regmap: debugfs: Fix check for block start in cached seeks
  regmap: debugfs: Fix attempts to read nonexistant register blocks

11 years agoMerge tag 'regulator-3.8-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/brooni...
Linus Torvalds [Tue, 15 Jan 2013 04:20:03 +0000 (20:20 -0800)]
Merge tag 'regulator-3.8-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator

Pull regulator fixes from Mark Brown:
 "A few fixes for the regulator subsystems, a few driver specific things
  plus a fix for the interaction between regultor_can_change_voltage()
  and continuous voltage ranges both of which were added for this
  release."

* tag 'regulator-3.8-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator:
  regulator: max8998: Ensure enough delay time for max8998_set_voltage_buck_time_sel
  regulator: max8998: Use uV in voltage_map_desc
  regulator: max8997: Use uV in voltage_map_desc
  regulator: core: Fix comment for regulator_register()
  regulator: core: Fix continuous_voltage_range case in regulator_can_change_voltage
  regulator: s5m8767: Fix probe failure due to stack corruption

11 years agoMerge remote-tracking branch 'regulator/fix/s5m8767' into tmp
Mark Brown [Tue, 15 Jan 2013 00:38:59 +0000 (09:38 +0900)]
Merge remote-tracking branch 'regulator/fix/s5m8767' into tmp

11 years agoMerge remote-tracking branch 'regulator/fix/max8998' into tmp
Mark Brown [Tue, 15 Jan 2013 00:38:56 +0000 (09:38 +0900)]
Merge remote-tracking branch 'regulator/fix/max8998' into tmp

11 years agoMerge remote-tracking branch 'regulator/fix/max8997' into tmp
Mark Brown [Tue, 15 Jan 2013 00:38:51 +0000 (09:38 +0900)]
Merge remote-tracking branch 'regulator/fix/max8997' into tmp

11 years agoMerge remote-tracking branch 'regulator/fix/core' into tmp
Mark Brown [Tue, 15 Jan 2013 00:38:27 +0000 (09:38 +0900)]
Merge remote-tracking branch 'regulator/fix/core' into tmp

11 years agoUDF: Fix a null pointer dereference in udf_sb_free_partitions
Namjae Jeon [Mon, 14 Jan 2013 21:53:47 +0000 (22:53 +0100)]
UDF: Fix a null pointer dereference in udf_sb_free_partitions

This patch fixes a regression caused by commit bff943af6fe "udf: Fix memory
leak when mounting" due to which it was triggering a kernel null point
dereference in case of interrupted mount OR when allocating memory to
sbi->s_partmaps failed in function udf_sb_alloc_partition_maps.

Reported-and-tested-by: James Hogan <james@albanarts.com>
Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: Ashish Sangwan <a.sangwan@samsung.com>
Signed-off-by: Jan Kara <jack@suse.cz>
11 years agojbd: don't wake kjournald unnecessarily
Eric Sandeen [Tue, 18 Dec 2012 17:03:57 +0000 (11:03 -0600)]
jbd: don't wake kjournald unnecessarily

Don't send an extra wakeup to kjournald in the case where we
already have the proper target in j_commit_request, i.e. that
commit has already been requested for commit.

commit d9b0193 "jbd: fix fsync() tid wraparound bug" changed
the logic leading to a wakeup, but it caused some extra wakeups
which were found to lead to a measurable performance regression.

Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: Jan Kara <jack@suse.cz>
11 years agoMerge tag 'dt-fixes-for-3.8' of git://sources.calxeda.com/kernel/linux
Linus Torvalds [Mon, 14 Jan 2013 21:19:08 +0000 (13:19 -0800)]
Merge tag 'dt-fixes-for-3.8' of git://sources.calxeda.com/kernel/linux

Pull devicetree fixes from Rob Herring:
 "Two fixes to prevent unconditional re-compile of dts files on arm and
  arm64."

* tag 'dt-fixes-for-3.8' of git://sources.calxeda.com/kernel/linux:
  ARM: dts: prevent *.dtb from always being rebuilt
  arm64: dts: prevent *.dtb from always being rebuilt

11 years agovfs: add missing virtual cache flush after editing partial pages
Linus Torvalds [Mon, 14 Jan 2013 21:17:50 +0000 (13:17 -0800)]
vfs: add missing virtual cache flush after editing partial pages

Andrew Morton pointed this out a month ago, and then I completely forgot
about it.

If we read a partial last page of a block device, we will zero out the
end of the page, but since that page can then be mapped into user space,
we should also make sure to flush the cache on architectures that have
virtual caches.  We have the flush_dcache_page() function for this, so
use it.

Now, in practice this really never matters, because nobody sane uses
virtual caches to begin with, and they largely exist on old broken RISC
arhitectures.

And even if you did run on one of those obsolete CPU's, the whole "mmap
and access the last partial page of a block device" behavior probably
doesn't actually exist.  The normal IO functions (read/write) will never
see the zeroed-out part of the page that migth not be coherent in the
cache, because they honor the size of the device.

So I'm marking this for stable (3.7 only), but I'm not sure anybody will
ever care.

Pointed-out-by: Andrew Morton <akpm@linux-foundation.org>
Cc: stable@vger.kernel.org # 3.7
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
11 years agoMerge tag 'sound-3.8' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Linus Torvalds [Mon, 14 Jan 2013 18:56:05 +0000 (10:56 -0800)]
Merge tag 'sound-3.8' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "Most of commits found here are for ASoC device specific fixes,
  arizona, cs4271, wm5102, wm2200, etc, in addition to a couple of
  memory leak fixes in ASoC core.

  Other than that, regression fixes in HD-audio and USB-audio, and a fix
  for new Realtek codecs."

* tag 'sound-3.8' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (30 commits)
  ALSA: usb-audio: Fix NULL dereference by access to non-existing substream
  ALSA: hda - Add support of new codec ALC284
  ALSA: usb-audio: Make ebox44_table static
  ALSA: hdspm - Fix wordclock status on AES32
  Revert "ALSA: hda - Shut up pins at power-saving mode with Conexnat codecs"
  ALSA: hda - Disable runtime D3 for Intel CPT & co
  ALSA: pxa27x: fix ac97 warm reset
  ALSA: pxa27x: fix ac97 cold reset
  ASoC: wm_adsp: Ensure that block writes are from DMA aligned addresses
  ASoC: wm2000: Fix sense of speech clarity enable
  ASoC: wm5100: Remove DSP B and left justified formats
  ASoC: arizona: Remove DSP B and left justified AIF modes
  ASoC: wm2200: Remove DSP B and left justified AIF modes
  ASoC: wm5102: Improve speaker enable performance
  ASoC: core: fix the memory leak in case of remove_aux_dev()
  ASoC: core: fix the memory leak in case of device_add() failure
  ASoC: cs42l52: Catch no-match case in cs42l52_get_clk
  ASoC: lm49453: Update lm49453_reg_defs values as per LM49453 HW revision-B
  ASoC: lm49453: Fix adc, mic and sidetone volume ranges
  ASoC: arizona: Correct FLL source definitions
  ...