Граф коммитов

287197 Коммитов

Автор SHA1 Сообщение Дата
Benjamin Tissoires 71078b0deb HID: multitouch: add new PID from Ideacom
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@enac.fr>
Acked-by: Henrik Rydberg <rydberg@euromail.se>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2012-03-06 14:09:24 +01:00
Benjamin Tissoires 841cb1570d HID: multitouch: add support for Atmel maXTouch 03eb:2118
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@enac.fr>
Acked-by: Henrik Rydberg <rydberg@euromail.se>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2012-03-06 14:09:24 +01:00
Denis Kovalev 2258e863b4 HID: multitouch: add support of Panasonic multitouch panels
While at it, also fix some minor codingstyle issues.

Signed-off-by: Denis Kovalev <Denis.Kovalev@dataart.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2012-02-21 11:55:45 +01:00
Benjamin Tissoires 847672cd14 HID: multitouch: support Perixx PERIPAD 701
Perixx Peripad 701 is an hybrid device which presents a touchpad and
a keyboard on the same surface. The switch between the two is controlled
by a physical switch, and the firmware sends the events on the right
interface (mouse, keyboard or multitouch).
This patch enables the multitouch interface of this device to work.

We need to manually set the device as a trackpad (we cannot infer it
from the reports descriptors as the device works under Windows, a system
that does not allow multitouch touchpad).
We also need to set the hid feature MAX CONTACT NUMBER to 2 or the device
stops sending events once it has been pressed by two touches.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@enac.fr>
Acked-by: Henrik Rydberg <rydberg@euromail.se>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2012-02-06 13:22:39 +01:00
Benjamin Tissoires 31ae9bddb9 HID: multitouch: add control of the feature "Maximum Contact Number"
Some devices, like Perixx Peripad 701 do not work if the feature
"Maximum Contact Number" is not set to the right value.
This patch allows hid-multitouch to control this feature.

If the programmer fills the field maxcontacts in the mt_class,
then the driver will set the feature to this value. It is safe
for current drivers as the feature is read/write in the HID norm
and all devices should implement the norm.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@enac.fr>
Acked-by: Henrik Rydberg <rydberg@euromail.se>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2012-02-06 13:22:39 +01:00
Benjamin Tissoires c2ef8f21ea HID: multitouch: add support for trackpads
* some multitouch trackpads present the touch usage. This needs to be
filtered as it will conflict with mt-implementation.
* trackpads send BTN_TOOL_* to notify how many fingers are present
(this is used by xorg to use synaptics instead of generic evdev)
* trackpads like Perixx 701 are not different from a hid point of view
from a touchscreen, and we need to manually set them as touchpad.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@enac.fr>
Acked-by: Henrik Rydberg <rydberg@euromail.se>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2012-02-06 13:22:38 +01:00
Linus Torvalds 7c7ed8ec33 Trivial kmemleak bug-fixes:
- Early logging doesn't stop when kmemleak is off by default.
 - Zero-size scanning areas should be ignored (currently it prints a warning).
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Merge tag 'kmemleak-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas/linux

Trivial kmemleak bug-fixes:

 - Early logging doesn't stop when kmemleak is off by default.
 - Zero-size scanning areas should be ignored (currently it prints a
   warning).

* tag 'kmemleak-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas/linux:
  kmemleak: Disable early logging when kmemleak is off by default
  kmemleak: Only scan non-zero-size areas
2012-02-03 12:41:31 -08:00
Linus Torvalds 7f06db34e5 sound fixes for 3.3-rc3
Most of commits are either regression fixes for varioud HD-audio
 codecs or small ASoC fixes.  Also a trivial build fix is included.
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Merge tag 'sound-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

sound fixes for 3.3-rc3

Most of commits are either regression fixes for varioud HD-audio
codecs or small ASoC fixes.  Also a trivial build fix is included.

* tag 'sound-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ALSA: hda - Disable dynamic-power control for VIA as default
  ALSA: hda - Allow analog low-current mode when dynamic power-control is on
  ALSA: hda - Fix the logic to detect VIA analog low-current mode
  ALSA: hda - Check power-state before changing in patch_via.c
  ALSA: HDA: Fix duplicated output to more than one codec
  ALSA: hda - Fix calling cs_automic twice for Cirrus codecs.
  ALSA: HDA: Remove quirk for Toshiba Qosmio G50
  ALSA: HDA: Fix jack creation for codecs with front and rear Line In
  ALSA: hda - Apply 0x0f-VREF fix to all ASUS laptops with ALC861/660
  ASoC: neo1973_wm8753: remove references to the neo1973-gta01 machine
  ALSA: Add #ifdef CONFIG_PCI guard for snd_pci_quirk_* functions
  ASoC: wm_hubs: fix wrong bits for LINEOUT2 N/P mixer
  ALSA: HDA: Remove quirk for Asus N53Jq
  ASoC: wm_hubs: Enable line out VMID buffer for single ended line outputs
  ASoC: wm5100: Mark register cache as dirty when regulators are disabled
  ASoC: wm8962: Mark register cache as dirty when regulators are disabled
  ASoC: wm8996: Mark register cache as dirty when regulators are disabled
  ASoC: wm5100: Fix microphone configuration
  ASoC: wm5100: Make sure we switch to button reporting mode
2012-02-03 10:06:15 -08:00
Linus Torvalds 6c073a7ee2 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client:
  rbd: fix safety of rbd_put_client()
  rbd: fix a memory leak in rbd_get_client()
  ceph: create a new session lock to avoid lock inversion
  ceph: fix length validation in parse_reply_info()
  ceph: initialize client debugfs outside of monc->mutex
  ceph: change "ceph.layout" xattr to be "ceph.file.layout"
2012-02-02 15:47:33 -08:00
Josh Triplett ff05f603c3 include/linux/lp8727.h: Remove executable bit
Signed-off-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-02-02 15:43:40 -08:00
Alex Elder d23a4b3fd6 rbd: fix safety of rbd_put_client()
The rbd_client structure uses a kref to arrange for cleaning up and
freeing an instance when its last reference is dropped.  The cleanup
routine is rbd_client_release(), and one of the things it does is
delete the rbd_client from rbd_client_list.  It acquires node_lock
to do so, but the way it is done is still not safe.

The problem is that when attempting to reuse an existing rbd_client,
the structure found might already be in the process of getting
destroyed and cleaned up.

Here's the scenario, with "CLIENT" representing an existing
rbd_client that's involved in the race:

 Thread on CPU A                | Thread on CPU B
 ---------------                | ---------------
 rbd_put_client(CLIENT)         | rbd_get_client()
   kref_put()                   |   (acquires node_lock)
     kref->refcount becomes 0   |   __rbd_client_find() returns CLIENT
     calls rbd_client_release() |   kref_get(&CLIENT->kref);
                                |   (releases node_lock)
       (acquires node_lock)     |
       deletes CLIENT from list | ...and starts using CLIENT...
       (releases node_lock)     |
       and frees CLIENT         | <-- but CLIENT gets freed here

Fix this by having rbd_put_client() acquire node_lock.  The result
could still be improved, but at least it avoids this problem.

Signed-off-by: Alex Elder <elder@dreamhost.com>
Signed-off-by: Sage Weil <sage@newdream.net>
2012-02-02 12:56:59 -08:00
Christopher Yeoh 8cdb878dcb Fix race in process_vm_rw_core
This fixes the race in process_vm_core found by Oleg (see

  http://article.gmane.org/gmane.linux.kernel/1235667/

for details).

This has been updated since I last sent it as the creation of the new
mm_access() function did almost exactly the same thing as parts of the
previous version of this patch did.

In order to use mm_access() even when /proc isn't enabled, we move it to
kernel/fork.c where other related process mm access functions already
are.

Signed-off-by: Chris Yeoh <yeohc@au1.ibm.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-02-02 12:55:17 -08:00
Alex Elder 97bb59a03d rbd: fix a memory leak in rbd_get_client()
If an existing rbd client is found to be suitable for use in
rbd_get_client(), the rbd_options structure is not being
freed as it should.  Fix that.

Signed-off-by: Alex Elder <elder@dreamhost.com>
Signed-off-by: Sage Weil <sage@newdream.net>
2012-02-02 12:49:27 -08:00
Alex Elder d8fb02abdc ceph: create a new session lock to avoid lock inversion
Lockdep was reporting a possible circular lock dependency in
dentry_lease_is_valid().  That function needs to sample the
session's s_cap_gen and and s_cap_ttl fields coherently, but needs
to do so while holding a dentry lock.  The s_cap_lock field was
being used to protect the two fields, but that can't be taken while
holding a lock on a dentry within the session.

In most cases, the s_cap_gen and s_cap_ttl fields only get operated
on separately.  But in three cases they need to be updated together.
Implement a new lock to protect the spots updating both fields
atomically is required.

Signed-off-by: Alex Elder <elder@dreamhost.com>
Reviewed-by: Sage Weil <sage@newdream.net>
2012-02-02 12:49:19 -08:00
Xi Wang 32852a81bc ceph: fix length validation in parse_reply_info()
"len" is read from network and thus needs validation.  Otherwise, given
a bogus "len" value, p+len could be an out-of-bounds pointer, which is
used in further parsing.

Signed-off-by: Xi Wang <xi.wang@gmail.com>
Signed-off-by: Sage Weil <sage@newdream.net>
2012-02-02 12:49:11 -08:00
Sage Weil ab434b60ab ceph: initialize client debugfs outside of monc->mutex
Initializing debufs under monc->mutex introduces a lock dependency for
sb->s_type->i_mutex_key, which (combined with several other dependencies)
leads to an annoying lockdep warning.  There's no particular reason to do
the debugfs setup under this lock, so move it out.

It used to be the case that our first monmap could come from the OSD; that
is no longer the case with recent servers, so we will reliably set up the
client entry during the initial authentication.

We don't have to worry about racing with debugfs teardown by
ceph_debugfs_client_cleanup() because ceph_destroy_client() calls
ceph_msgr_flush() first, which will wait for the message dispatch work
to complete (and the debugfs init to complete).

Fixes: #1940
Signed-off-by: Sage Weil <sage@newdream.net>
2012-02-02 12:49:01 -08:00
Alex Elder 114fc47492 ceph: change "ceph.layout" xattr to be "ceph.file.layout"
The virtual extended attribute named "ceph.layout" is meaningful
only for regular files.  Change its name to be "ceph.file.layout" to
more directly reflect that in the ceph xattr namespace.  Preserve
the old "ceph.layout" name for the time being (until we decide it's
safe to get rid of it entirely).

Add a missing initializer for "readonly" in the terminating entry.

Signed-off-by: Alex Elder <elder@dreamhost.com>
Reviewed-by: Sage Weil <sage@newdream.net>
2012-02-02 12:48:52 -08:00
Linus Torvalds 24b36da33c Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
  drm/radeon/kms/blit: fix blit copy for very large buffers
  drm/radeon/kms: fix TRAVIS panel setup
  drm/radeon: fix use after free in ATRM bios reading code.
  drm/radeon/kms: Fix device tree linkage of DP i2c buses too
  drm/radeon: Set DESKTOP_HEIGHT register to the framebuffer (not mode) height.
  drm/radeon/kms: disable output polling when suspended
  drm/nv50/pm: signedness bug in nv50_pm_clocks_pre()
  drm/nouveau/gem: fix fence_sync race / oops
  drm/nouveau: fix typo on mxmdcb option
  drm/nouveau/mxm: pretend to succeed, even if we can't shadow the MXM-SIS
  drm/nouveau/disp: check that panel power gpio is enabled at init time
2012-02-02 11:19:03 -08:00
Linus Torvalds c84e295b30 Merge branch 'next' of git://git.monstr.eu/linux-2.6-microblaze
* 'next' of git://git.monstr.eu/linux-2.6-microblaze:
  Revert "microblaze: Add topology init"
2012-02-02 11:18:18 -08:00
Linus Torvalds 2f2fde9272 Merge branches 'core-urgent-for-linus', 'perf-urgent-for-linus', 'sched-urgent-for-linus' and 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
* 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  bugs, x86: Fix printk levels for panic, softlockups and stack dumps

* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf top: Fix number of samples displayed
  perf tools: Fix strlen() bug in perf_event__synthesize_event_type()
  perf tools: Fix broken build by defining _GNU_SOURCE in Makefile
  x86/dumpstack: Remove unneeded check in dump_trace()
  perf: Fix broken interrupt rate throttling

* 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  sched/rt: Fix task stack corruption under __ARCH_WANT_INTERRUPTS_ON_CTXSW
  sched: Fix ancient race in do_exit()
  sched/nohz: Fix nohz cpu idle load balancing state with cpu hotplug
  sched/s390: Fix compile error in sched/core.c
  sched: Fix rq->nr_uninterruptible update race

* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/reboot: Remove VersaLogic Menlow reboot quirk
  x86/reboot: Skip DMI checks if reboot set by user
  x86: Properly parenthesize cmpxchg() macro arguments
2012-02-02 11:11:13 -08:00
Ilija Hadzic 52b53a0bf8 drm/radeon/kms/blit: fix blit copy for very large buffers
Evergreen and NI blit copy was broken if the buffer maps to a rectangle
whose one dimension is 16384 (max dimension allowed by these chips).
In the mainline kernel, the problem is exposed only when buffers are
very large (1G), but it's still a problem. The problem could be exposed
for smaller buffers if anyone modifies the algorithm for rectangle
construction in r600_blit_create_rect() (the reason why someone would
modify that algorithm is to tune the performance of buffer moves).

The root cause was in i2f() function which only operated on range between
0 and 16383. Fix this by extending the range of i2f() function to 0 to
32767.

While at it improve the function so that the range can be easily
extended in the future (if it becomes necessary), cleanup lines
over 80 characters, and replace in-line comments with one strategic
comment that explains the crux of the function.

Credits to michel@daenzer.net for pointing out the root cause of
the bug.

v2: Fix I2F_MAX_INPUT constant definition goof and warn only once
    if input argument is out of range. Edit the comment a little
    bit to avoid some linguistic confusion and make it look better
    in general.

Signed-off-by: Ilija Hadzic <ihadzic@research.bell-labs.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Michel Dänzer <michel@daenzer.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-02-02 15:54:48 +00:00
Alex Deucher 304a48400d drm/radeon/kms: fix TRAVIS panel setup
Different versions of the DP to LVDS bridge chip
need different panel mode settings depending on
the chip version used.

Fixes:
https://bugs.freedesktop.org/show_bug.cgi?id=41569

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-02-02 15:26:50 +00:00
Dave Airlie de47a9cd62 drm/radeon: fix use after free in ATRM bios reading code.
Fixes:
https://bugs.freedesktop.org/show_bug.cgi?id=45503

Reported-and-Debugged-by: mlambda@gmail.com
Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-02-02 15:25:16 +00:00
Takashi Iwai b5bcc18940 ALSA: hda - Disable dynamic-power control for VIA as default
Since the dynamic pin power-control and the analog low-current mode
may lead to pop-noise, it's safer to set it off as default.

Bugzilla: https://bugzilla.novell.com/show_bug.cgi?id=741128

Cc: <stable@kernel.org> [v3.1+]
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2012-02-02 10:34:06 +01:00
Takashi Iwai e9d010c2e8 ALSA: hda - Allow analog low-current mode when dynamic power-control is on
VIA codecs have several different power-saving features, and one of
them is the analog low-current mode.  But it turned out that the ALC
mode causes pop-noises at each on/off time on some machines.  As a
quick workaround, disable the ALC when another power-saving feature,
the dynamic pin power-control, is turned off, too, since the dynamic
power-control is already exposed as a mixer enum element so that user
can turn it on/off freely.

Bugzilla: https://bugzilla.novell.com/show_bug.cgi?id=741128

Cc: <stable@kernel.org> [v3.1+]
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2012-02-02 10:18:09 +01:00
Takashi Iwai 924339239f ALSA: hda - Fix the logic to detect VIA analog low-current mode
The analog low-current mode must be enabled when the no stream is
running but the current detection checks it in a wrong way.

Bugzilla: https://bugzilla.novell.com/show_bug.cgi?id=741128

Cc: <stable@kernel.org> [v3.1+]
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2012-02-02 10:16:32 +01:00
Takashi Iwai 054d867e03 ALSA: hda - Check power-state before changing in patch_via.c
Instead of always writing AC_VERB_SET_POWER_STATE, check the current
power-state and don't write again if the value is already set.
This may reduce the click noise upon the dynamic power-state change
(e.g. in analog-input mixer).

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2012-02-02 10:15:16 +01:00
Linus Torvalds bd3ce7d57c firewire fixes post v3.3-rc1
Add workarounds table entries for hardware bugs in
   - FireWire part of Sound Blaster Audigy cards,
   - Ricoh PCIe 1394 controllers.
 Without these, several protocols, e.g. AV/C, do not work on the
 Audigy, and the Ricoh PCIe controllers wouldn't work at all.
 This does not concern the older Ricoh PCI controllers.
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Merge tag 'firewire-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394

firewire fixes post v3.3-rc1

Add workarounds table entries for hardware bugs in
  - FireWire part of Sound Blaster Audigy cards,
  - Ricoh PCIe 1394 controllers.
Without these, several protocols, e.g. AV/C, do not work on the
Audigy, and the Ricoh PCIe controllers wouldn't work at all.
This does not concern the older Ricoh PCI controllers.

* tag 'firewire-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394:
  firewire: ohci: disable MSI on Ricoh controllers
  firewire: ohci: add reset packet quirk for SB Audigy
2012-02-01 18:30:15 -08:00
Randy Dunlap da46d7dd53 staging: fix go7007-usb license
Add MODULE_LICENSE() as per the license in the comment at the top of the
file for this source module to fix build warning:

  WARNING: modpost: missing MODULE_LICENSE() in drivers/staging/media/go7007/go7007-usb.o
  see include/linux/module.h for more information

Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Cc: Ross Cohen <rcohen@snurgle.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-02-01 18:29:33 -08:00
Randy Dunlap 13405059e8 docbook: fix fatal errors in device-drivers docbook and add DMA Management section
Fix 2 fatal errors in the device-drivers docbook.
Also add some missing files from drivers/base/; since several
of these are DMA-related, add a section for DMA Management.

docproc: drivers/base/sys.c: No such file or directory
docproc: drivers/tty/serial/8250.c: No such file or directory

Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-02-01 17:28:26 -08:00
Linus Torvalds ce106ad310 Merge branch 'for-linus2' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security
* 'for-linus2' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security:
  lib: Fix 32-bit sparc udiv_qrnnd() definition in mpilib's longlong.h
  lib: Fix multiple definitions of clz_tab
  lib/digsig: checks for NULL return value
  lib/mpi: added missing NULL check
  lib/mpi: added comment on divide by 0 case
  lib/mpi: check for possible zero length
  lib/digsig: pkcs_1_v1_5_decode_emsa cleanup
  lib/digsig: additional sanity checks against badly formated key payload
  lib/mpi: removed unused functions
  lib/mpi: checks for zero divisor length
  lib/mpi: return error code on dividing by zero
  lib/mpi: replaced MPI_NULL with normal NULL
  lib/mpi: added missing NULL check
2012-02-01 16:00:38 -08:00
David Miller a99e7e5f36 lib: Fix 32-bit sparc udiv_qrnnd() definition in mpilib's longlong.h
This copy of longlong.h is extremely dated and results in compile
errors on sparc32 when MPILIB is enabled, copy over the more uptodate
implementation from arch/sparc/math/sfp-util_32.h

Reported-by: Al Viro <viro@ZenIV.linux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: James Morris <jmorris@namei.org>
2012-02-02 10:34:25 +11:00
David Miller c6df4b17c8 lib: Fix multiple definitions of clz_tab
Both sparc 32-bit's software divide assembler and MPILIB provide
clz_tab[] with identical contents.

Break it out into a seperate object file and select it when
SPARC32 or MPILIB is set.

Reported-by: Al Viro <viro@ZenIV.linux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: James Morris <jmorris@namei.org>
2012-02-02 10:34:23 +11:00
Linus Torvalds 18d3e0d750 InfiniBand/RDMA fixes for 3.3:
- Fix a crash due to a regression (uninitialized refcnt) introduced in
    3.2 with XRC support.
  - Close race in how ucma reports events when connect fails.
  - Process vendor-specific MADs in mlx4 so that eg FDR-10 data rate works.
  - Fix regression in qib caused by over-aggressive PCIe tuning.
  - Other small fixes for hardware drivers (ipath, nes, qib).
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Merge tag 'rdma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband

InfiniBand/RDMA fixes for 3.3:

 - Fix a crash due to a regression (uninitialized refcnt) introduced in
   3.2 with XRC support.
 - Close race in how ucma reports events when connect fails.
 - Process vendor-specific MADs in mlx4 so that eg FDR-10 data rate works.
 - Fix regression in qib caused by over-aggressive PCIe tuning.
 - Other small fixes for hardware drivers (ipath, nes, qib).

* tag 'rdma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband:
  RDMA/nes: Copyright update
  IB/mlx4: pass SMP vendor-specific attribute MADs to firmware
  RDMA/nes: Fix fast memory registration opcode
  RDMA/nes: Fix fast memory registration length
  RDMA/ucma: Discard all events for new connections until accepted
  IB/qib: Roll back PCIe tuning change
  IB/qib: Use GFP_ATOMIC when locks are held
  RDMA/nes: Add missing rcu_read_unlock() in nes_addr_resolve_neigh()
  RDMA/nes: Fix for sending MPA reject frame
  IB/ipath: Calling PTR_ERR() on right variable in create_file()
  RDMA/core: Fix kernel panic by always initializing qp->usecnt
2012-02-01 15:18:39 -08:00
Oleg Nesterov 6d08f2c713 proc: make sure mem_open() doesn't pin the target's memory
Once /proc/pid/mem is opened, the memory can't be released until
mem_release() even if its owner exits.

Change mem_open() to do atomic_inc(mm_count) + mmput(), this only
pins mm_struct. Change mem_rw() to do atomic_inc_not_zero(mm_count)
before access_remote_vm(), this verifies that this mm is still alive.

I am not sure what should mem_rw() return if atomic_inc_not_zero()
fails. With this patch it returns zero to match the "mm == NULL" case,
may be it should return -EINVAL like it did before e268337d.

Perhaps it makes sense to add the additional fatal_signal_pending()
check into the main loop, to ensure we do not hold this memory if
the target task was oom-killed.

Cc: stable@kernel.org
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-02-01 14:39:01 -08:00
Oleg Nesterov 572d34b946 proc: unify mem_read() and mem_write()
No functional changes, cleanup and preparation.

mem_read() and mem_write() are very similar. Move this code into the
new common helper, mem_rw(), which takes the additional "int write"
argument.

Cc: stable@kernel.org
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-02-01 14:39:01 -08:00
Oleg Nesterov 71879d3cb3 proc: mem_release() should check mm != NULL
mem_release() can hit mm == NULL, add the necessary check.

Cc: stable@kernel.org
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-02-01 14:39:01 -08:00
Greg KH 879a5a001b MAINTAINERS: Greg's suse email address is dead
My email address has changed, the suse.de one is now dead, so update all
of my MAINTAINER entries with the correct one so that patches don't get
lost.

Also change the status of some of my entries as I'm supposed to be doing
this stuff now for real.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-02-01 11:10:45 -08:00
Artem Bityutskiy 7d73101921 mtd: fix merge conflict resolution breakage
This patch fixes merge conflict resolution breakage introduced by merge
d3712b9dfc ("Merge tag 'for-linus' of git://github.com/prasad-joshi/logfs_upstream").

The commit changed 'mtd_can_have_bb()' function and made it always
return zero, which is incorrect.  Instead, we need it to return whether
the underlying flash device can have bad eraseblocks or not.  UBI needs
this information because it affects how it handles the underlying flash.
E.g., if the underlying flash is NOR, it cannot have bad blocks and any
write or erase error is fatal, and all we can do is to switch to R/O
mode.  We do not need to reserve a pool of good eraseblocks for bad
eraseblocks handling, and so on.

This patch also removes 'mtd_can_have_bb()' invocations from Logfs to
ensure correct Logfs behavior.

I've tested that with this patch UBI works on top of NOR and NAND
flashes emulated by mtdram and nandsim correspondingly.

This patch is based on patch from Linus Torvalds.

Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Acked-by: Jörn Engel <joern@logfs.org>
Acked-by: Prasad Joshi <prasadjoshi.linux@gmail.com>
Acked-by: Brian Norris <computersforpeace@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-02-01 11:10:24 -08:00
Jean Delvare 3f7e363249 drm/radeon/kms: Fix device tree linkage of DP i2c buses too
Properly set the parent device of DP i2c buses before registering them
too.

Signed-off-by: Jean Delvare <jdelvare@suse.de>
Reviewed-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-02-01 15:45:34 +00:00
Michel Dänzer 1b61925061 drm/radeon: Set DESKTOP_HEIGHT register to the framebuffer (not mode) height.
The value of this register is transferred to the V_COUNTER register at the
beginning of vertical blank. V_COUNTER is the reference for VLINE waits and
goes from VIEWPORT_Y_START to VIEWPORT_Y_START+VIEWPORT_HEIGHT during scanout,
so if VIEWPORT_Y_START is not 0, V_COUNTER actually went backwards at the
beginning of vertical blank, and VLINE waits excluding the whole scanout area
could never finish (possibly only if VIEWPORT_Y_START is larger than the length
of vertical blank in scanlines). Setting DESKTOP_HEIGHT to the framebuffer
height should prevent this for any kind of VLINE wait.

Fixes https://bugs.freedesktop.org/show_bug.cgi?id=45329 .

CC: stable@vger.kernel.org
Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-02-01 15:42:54 +00:00
Seth Forshee 86698c20f7 drm/radeon/kms: disable output polling when suspended
Polling the outputs when the device is suspended can result in erroneous
status updates. Disable output polling during suspend to prevent this
from happening.

Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-02-01 15:41:39 +00:00
Dmitry Kasatkin 86f8bedc9e lib/digsig: checks for NULL return value
mpi_read_from_buffer() return value must not be NULL.

Signed-off-by: Dmitry Kasatkin <dmitry.kasatkin@intel.com>
Reviewed-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: James Morris <jmorris@namei.org>
2012-02-02 00:24:04 +11:00
Dmitry Kasatkin 43b2c0aeaa lib/mpi: added missing NULL check
Added missing NULL check after mpi_alloc_limb_space().

Signed-off-by: Dmitry Kasatkin <dmitry.kasatkin@intel.com>
Reviewed-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: James Morris <jmorris@namei.org>
2012-02-02 00:23:39 +11:00
Dmitry Kasatkin a6d68ecc56 lib/mpi: added comment on divide by 0 case
Comment explains that existing clients do not call this function
with dsize == 0, which means that 1/0 should not happen.

Signed-off-by: Dmitry Kasatkin <dmitry.kasatkin@intel.com>
Reviewed-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: James Morris <jmorris@namei.org>
2012-02-02 00:23:39 +11:00
Dmitry Kasatkin 4877e05619 lib/mpi: check for possible zero length
Buggy client might pass zero nlimbs which is meaningless.
Added check for zero length.

Signed-off-by: Dmitry Kasatkin <dmitry.kasatkin@intel.com>
Reviewed-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: James Morris <jmorris@namei.org>
2012-02-02 00:23:39 +11:00
Dmitry Kasatkin b35e286a64 lib/digsig: pkcs_1_v1_5_decode_emsa cleanup
Removed useless 'is_valid' variable in pkcs_1_v1_5_decode_emsa(),
which was inhereted from original code. Client now uses return value
to check for an error.

Signed-off-by: Dmitry Kasatkin <dmitry.kasatkin@intel.com>
Reviewed-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: James Morris <jmorris@namei.org>
2012-02-02 00:23:39 +11:00
Dmitry Kasatkin f58a08152c lib/digsig: additional sanity checks against badly formated key payload
Added sanity checks for possible wrongly formatted key payload data:
- minimum key payload size
- zero modulus length
- corrected upper key payload boundary.

Signed-off-by: Dmitry Kasatkin <dmitry.kasatkin@intel.com>
Reviewed-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: James Morris <jmorris@namei.org>
2012-02-02 00:23:38 +11:00
Dmitry Kasatkin bc95eeadf5 lib/mpi: removed unused functions
do_encode_md() and mpi_get_keyid() are not parts of mpi library.
They were used early versions of gnupg and in digsig project,
but they are not used neither here nor there anymore.

Signed-off-by: Dmitry Kasatkin <dmitry.kasatkin@intel.com>
Reviewed-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: James Morris <jmorris@namei.org>
2012-02-02 00:23:14 +11:00
Dmitry Kasatkin e2fe85c236 lib/mpi: checks for zero divisor length
Divisor length should not be 0.

Signed-off-by: Dmitry Kasatkin <dmitry.kasatkin@intel.com>
Reviewed-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: James Morris <jmorris@namei.org>
2012-02-02 00:23:14 +11:00