Mauro Carvalho Chehab [Thu, 28 Jul 2011 19:38:54 +0000 (16:38 -0300)]
tuner_xc2028: Allow selection of the frequency adjustment code for XC3028
commit
9bed77ee2fb46b74782d0d9d14b92e9d07f3df6e upstream.
This device is not using the proper demod IF. Instead of using the
IF macro, it is specifying a IF frequency. This doesn't work, as xc3028
needs to load an specific SCODE for the tuner. In this case, there's
no IF table for 5 MHz.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Olivier Grenie [Mon, 1 Aug 2011 15:45:58 +0000 (12:45 -0300)]
dib0700: protect the dib0700 buffer access
commit
bff469f4167fdabfe15294f375577d7eadbaa1bb upstream.
This patch protects the common buffer access inside the dib0700 in order
to manage concurrent access. This protection is done using mutex.
Cc: Mauro Carvalho Chehab <mchehab@redhat.com>
Cc: Florian Mickler <florian@mickler.org>
Signed-off-by: Javier Marcet <javier@marcet.info>
Signed-off-by: Olivier Grenie <olivier.grenie@dibcom.fr>
Signed-off-by: Patrick Boettcher <patrick.boettcher@dibcom.fr>
[mchehab@redhat.com: dprint requires 3 arguments. Replaced by dib_info]
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Patrick Boettcher [Wed, 3 Aug 2011 15:08:21 +0000 (12:08 -0300)]
DiBcom: protect the I2C bufer access
commit
79fcce3230b140f7675f8529ee53fe2f9644f902 upstream.
This patch protects the I2C buffer access in order to manage concurrent
access. This protection is done using mutex.
Furthermore, for the dib9000, if a pid filtering command is
received during the tuning, this pid filtering command is delayed to
avoid any concurrent access issue.
Cc: Mauro Carvalho Chehab <mchehab@redhat.com>
Cc: Florian Mickler <florian@mickler.org>
Signed-off-by: Olivier Grenie <olivier.grenie@dibcom.fr>
Signed-off-by: Patrick Boettcher <Patrick.Boettcher@dibcom.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Ming Lei [Sat, 16 Jul 2011 03:51:00 +0000 (00:51 -0300)]
uvcvideo: Set alternate setting 0 on resume if the bus has been reset
commit
d59a7b1dbce8b972ec2dc9fcaaae0bfa23687423 upstream.
If the bus has been reset on resume, set the alternate setting to 0.
This should be the default value, but some devices crash or otherwise
misbehave if they don't receive a SET_INTERFACE request before any other
video control request.
Microdia's 0c45:6437 camera has been found to require this change or it
will stop sending video data after resume.
uvc_video.c]
Signed-off-by: Ming Lei <ming.lei@canonical.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Florian Tobias Schandinat [Mon, 6 Jun 2011 01:27:34 +0000 (01:27 +0000)]
viafb: improve pitch handling
commit
936a3f770b8de7042d793272f008ef1bb08522e9 upstream.
This patch adds checks for minimum and maximum pitch size to prevent
invalid settings which could otherwise crash the machine. Also the
alignment is done in a slightly more readable way.
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Florian Tobias Schandinat [Mon, 23 May 2011 21:39:58 +0000 (21:39 +0000)]
viafb: use display information in info not in var for panning
commit
d933990c57b498c092ceef591c7c5d69dbfe9f30 upstream.
As Laurent pointed out we must not use any information in the passed
var besides xoffset, yoffset and vmode as otherwise applications
might abuse it. Also use the aligned fix.line_length and not the
(possible) unaligned xres_virtual.
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Reported-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Bruno Prémont [Fri, 2 Sep 2011 17:24:03 +0000 (19:24 +0200)]
fb: sh-mobile: Fix deadlock risk between lock_fb_info() and console_lock()
commit
4a47a0e09c504e3ce0ccdb405411aefc5b09deb8 upstream.
Following on Herton's patch "fb: avoid possible deadlock caused by
fb_set_suspend" which moves lock_fb_info() out of fb_set_suspend()
to its callers, correct sh-mobile's locking around call to
fb_set_suspend() and the same sort of deaklocks with console_lock()
due to order of taking the lock.
console_lock() must be taken while fb_info is already locked and fb_info
must be locked while calling fb_set_suspend().
Signed-off-by: Bruno Prémont <bonbons@linux-vserver.org>
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Herton Ronaldo Krzesinski [Fri, 17 Jun 2011 19:02:39 +0000 (19:02 +0000)]
fb: avoid possible deadlock caused by fb_set_suspend
commit
9e769ff3f585db8f978f9113be83d36c7e3965dd upstream.
A lock ordering issue can cause deadlocks: in framebuffer/console code,
all needed struct fb_info locks are taken before acquire_console_sem(),
in places which need to take console semaphore.
But fb_set_suspend is always called with console semaphore held, and
inside it we call lock_fb_info which gets the fb_info lock, inverse
locking order of what the rest of the code does. This causes a real
deadlock issue, when we write to state fb sysfs attribute (which calls
fb_set_suspend) while a framebuffer is being unregistered by
remove_conflicting_framebuffers, as can be shown by following show
blocked state trace on a test program which loads i915 and runs another
forked processes writing to state attribute:
Test process with semaphore held and trying to get fb_info lock:
..
fb-test2 D
0000000000000000 0 237 228 0x00000000
ffff8800774f3d68 0000000000000082 00000000000135c0 00000000000135c0
ffff880000000000 ffff8800774f3fd8 ffff8800774f3fd8 ffff880076ee4530
00000000000135c0 ffff8800774f3fd8 ffff8800774f2000 00000000000135c0
Call Trace:
[<
ffffffff8141287a>] __mutex_lock_slowpath+0x11a/0x1e0
[<
ffffffff814142f2>] ? _raw_spin_lock_irq+0x22/0x40
[<
ffffffff814123d3>] mutex_lock+0x23/0x50
[<
ffffffff8125dfc5>] lock_fb_info+0x25/0x60
[<
ffffffff8125e3f0>] fb_set_suspend+0x20/0x80
[<
ffffffff81263e2f>] store_fbstate+0x4f/0x70
[<
ffffffff812e7f70>] dev_attr_store+0x20/0x30
[<
ffffffff811c46b4>] sysfs_write_file+0xd4/0x160
[<
ffffffff81155a26>] vfs_write+0xc6/0x190
[<
ffffffff81155d51>] sys_write+0x51/0x90
[<
ffffffff8100c012>] system_call_fastpath+0x16/0x1b
..
modprobe process stalled because has the fb_info lock (got inside
unregister_framebuffer) but waiting for the semaphore held by the
test process which is waiting to get the fb_info lock:
..
modprobe D
0000000000000000 0 230 218 0x00000000
ffff880077a4d618 0000000000000082 0000000000000001 0000000000000001
ffff880000000000 ffff880077a4dfd8 ffff880077a4dfd8 ffff8800775a2e20
00000000000135c0 ffff880077a4dfd8 ffff880077a4c000 00000000000135c0
Call Trace:
[<
ffffffff81411fe5>] schedule_timeout+0x215/0x310
[<
ffffffff81058051>] ? get_parent_ip+0x11/0x50
[<
ffffffff814130dd>] __down+0x6d/0xb0
[<
ffffffff81089f71>] down+0x41/0x50
[<
ffffffff810629ac>] acquire_console_sem+0x2c/0x50
[<
ffffffff812ca53d>] unbind_con_driver+0xad/0x2d0
[<
ffffffff8126f5f7>] fbcon_event_notify+0x457/0x890
[<
ffffffff814144ff>] ? _raw_spin_unlock_irqrestore+0x1f/0x50
[<
ffffffff81058051>] ? get_parent_ip+0x11/0x50
[<
ffffffff8141836d>] notifier_call_chain+0x4d/0x70
[<
ffffffff8108a3b8>] __blocking_notifier_call_chain+0x58/0x80
[<
ffffffff8108a3f6>] blocking_notifier_call_chain+0x16/0x20
[<
ffffffff8125dabb>] fb_notifier_call_chain+0x1b/0x20
[<
ffffffff8125e6ac>] unregister_framebuffer+0x7c/0x130
[<
ffffffff8125e8b3>] remove_conflicting_framebuffers+0x153/0x180
[<
ffffffff8125eef3>] register_framebuffer+0x93/0x2c0
[<
ffffffffa0331112>] drm_fb_helper_single_fb_probe+0x252/0x2f0 [drm_kms_helper]
[<
ffffffffa03314a3>] drm_fb_helper_initial_config+0x2f3/0x6d0 [drm_kms_helper]
[<
ffffffffa03318dd>] ? drm_fb_helper_single_add_all_connectors+0x5d/0x1c0 [drm_kms_helper]
[<
ffffffffa037b588>] intel_fbdev_init+0xa8/0x160 [i915]
[<
ffffffffa0343d74>] i915_driver_load+0x854/0x12b0 [i915]
[<
ffffffffa02f0e7e>] drm_get_pci_dev+0x19e/0x360 [drm]
[<
ffffffff8141821d>] ? sub_preempt_count+0x9d/0xd0
[<
ffffffffa0386f91>] i915_pci_probe+0x15/0x17 [i915]
[<
ffffffff8124481f>] local_pci_probe+0x5f/0xd0
[<
ffffffff81244f89>] pci_device_probe+0x119/0x120
[<
ffffffff812eccaa>] ? driver_sysfs_add+0x7a/0xb0
[<
ffffffff812ed003>] driver_probe_device+0xa3/0x290
[<
ffffffff812ed1f0>] ? __driver_attach+0x0/0xb0
[<
ffffffff812ed29b>] __driver_attach+0xab/0xb0
[<
ffffffff812ed1f0>] ? __driver_attach+0x0/0xb0
[<
ffffffff812ebd3e>] bus_for_each_dev+0x5e/0x90
[<
ffffffff812ecc2e>] driver_attach+0x1e/0x20
[<
ffffffff812ec6f2>] bus_add_driver+0xe2/0x320
[<
ffffffffa03aa000>] ? i915_init+0x0/0x96 [i915]
[<
ffffffff812ed536>] driver_register+0x76/0x140
[<
ffffffffa03aa000>] ? i915_init+0x0/0x96 [i915]
[<
ffffffff81245216>] __pci_register_driver+0x56/0xd0
[<
ffffffffa02f1264>] drm_pci_init+0xe4/0xf0 [drm]
[<
ffffffffa03aa000>] ? i915_init+0x0/0x96 [i915]
[<
ffffffffa02e84a8>] drm_init+0x58/0x70 [drm]
[<
ffffffffa03aa094>] i915_init+0x94/0x96 [i915]
[<
ffffffff81002194>] do_one_initcall+0x44/0x190
[<
ffffffff810a066b>] sys_init_module+0xcb/0x210
[<
ffffffff8100c012>] system_call_fastpath+0x16/0x1b
..
fb-test2 which reproduces above is available on kernel.org bug #26232.
To solve this issue, avoid calling lock_fb_info inside fb_set_suspend,
and move it out to where needed (callers of fb_set_suspend must call
lock_fb_info before if needed). So far, the only place which needs to
call lock_fb_info is store_fbstate, all other places which calls
fb_set_suspend are suspend/resume hooks that should not need the lock as
they should be run only when processes are already frozen in
suspend/resume.
References: https://bugzilla.kernel.org/show_bug.cgi?id=26232
Signed-off-by: Herton Ronaldo Krzesinski <herton@mandriva.com.br>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Jean Delvare [Fri, 8 Jul 2011 09:04:38 +0000 (11:04 +0200)]
carminefb: Fix module parameters permissions
commit
c84c14224bbca6ec60d5851fcc87be0e34df2f44 upstream.
The third parameter of module_param is supposed to be an octal value.
The missing leading "0" causes the following:
$ ls -l /sys/module/carminefb/parameters/
total 0
-rw-rwxr-- 1 root root 4096 Jul 8 08:55 fb_displays
-rw-rwxr-- 1 root root 4096 Jul 8 08:55 fb_mode
-rw-rwxr-- 1 root root 4096 Jul 8 08:55 fb_mode_str
After fixing the perm parameter, we get the expected:
$ ls -l /sys/module/carminefb/parameters/
total 0
-r--r--r-- 1 root root 4096 Jul 8 08:56 fb_displays
-r--r--r-- 1 root root 4096 Jul 8 08:56 fb_mode
-r--r--r-- 1 root root 4096 Jul 8 08:56 fb_mode_str
Signed-off-by: Jean Delvare <jdelvare@suse.de>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: Sebastian Siewior <bigeasy@linutronix.de>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Joerg Roedel [Tue, 11 Oct 2011 15:41:32 +0000 (17:41 +0200)]
iommu/amd: Fix wrong shift direction
commit
fcd0861db1cf4e6ed99f60a815b7b72c2ed36ea4 upstream.
The shift direction was wrong because the function takes a
page number and i is the address is the loop.
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Dmitry Torokhov [Wed, 7 Sep 2011 22:00:02 +0000 (15:00 -0700)]
WMI: properly cleanup devices to avoid crashes
commit
023b9565972a4a5e0f01b9aa32680af6e9b5c388 upstream.
We need to remove devices that we destroy from the list, otherwise
we'll crash if there are more than one "_WDG" methods in DSDT.
This fixes https://bugzilla.kernel.org/show_bug.cgi?id=32052
Tested-by: Ilya Tumaykin <librarian_rus@yahoo.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Acked-by: Carlos Corbacho <carlos@strangeworlds.co.uk>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Sebastian Ott [Sun, 30 Oct 2011 14:16:52 +0000 (15:16 +0100)]
ccwgroup: move attributes to attribute group
commit
dbdf1afcaaabe83dea15a3cb9b9013e73ae3b1ad upstream.
Put sysfs attributes of ccwgroup devices in an attribute group to
ensure that these attributes are actually present when userspace
is notified via uevents.
Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Martin Schwidefsky [Sun, 30 Oct 2011 14:16:08 +0000 (15:16 +0100)]
memory leak with RCU_TABLE_FREE
commit
e73b7fffe487c315fd1a4fa22282e3362b440a06 upstream.
The rcu page table free code uses a couple of bits in the page table
pointer passed to tlb_remove_table to discern the different page table
types. __tlb_remove_table extracts the type with an incorrect mask which
leads to memory leaks. The correct mask is ((FRAG_MASK << 4) | FRAG_MASK).
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Martin Schwidefsky [Sun, 30 Oct 2011 14:16:07 +0000 (15:16 +0100)]
user per registers vs. ptrace single stepping
commit
a45aff5285871bf7be1781d9462d3fdbb6c913f9 upstream.
git commit
5e9a2692 "[S390] ptrace cleanup" introduced a regression
for the case when both a user PER set (e.g. a storage alteration trace) and
PTRACE_SINGLESTEP are active. The new code will overrule the user PER set
with a instruction-fetch PER set over the whole address space for ptrace
single stepping. The inferior process will be stopped after each instruction
with an instruction fetch event. Any other events that may have occurred
concurrently are not reported (e.g. storage alteration event) because the
control bits for them are not set. The solution is to merge the PER control
bits of the user PER set with the PER_EVENT_IFETCH control bit for
PTRACE_SINGLESTEP.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Carsten Otte [Tue, 18 Oct 2011 10:27:12 +0000 (12:27 +0200)]
KVM: s390: check cpu_id prior to using it
commit
4d47555a80495657161a7e71ec3014ff2021e450 upstream.
We use the cpu id provided by userspace as array index here. Thus we
clearly need to check it first. Ooops.
Signed-off-by: Carsten Otte <cotte@de.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Susan Gao [Thu, 29 Sep 2011 10:08:18 +0000 (11:08 +0100)]
ASoC: Fix a bug in WM8962 DSP_A and DSP_B settings
commit
fbc7c62a3ff831aef24894b7982cd1adb2b7e070 upstream.
Signed-off-by: Susan Gao <sgao@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmico.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Mark Brown [Fri, 23 Sep 2011 20:26:33 +0000 (21:26 +0100)]
ASoC: Remove direct register cache accesses from WM8962 driver
commit
38f3f31a0a797bdbcc0cdb12553bbecc2f9a91c4 upstream.
Also fix return values for speaker switch updates.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Axel Lin [Thu, 20 Oct 2011 04:13:24 +0000 (12:13 +0800)]
ASoC: wm8994: Use SND_SOC_DAPM_AIF_OUT for AIF3 Capture
commit
35024f4922f7b271e7529673413889aa3d51c5fc upstream.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Liam Girdwood <lrg@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Axel Lin [Thu, 13 Oct 2011 09:17:06 +0000 (17:17 +0800)]
ASoC: ak4535: fixup cache register table
commit
7c04241acbdaf97f1448dcccd27ea0fcd1a57684 upstream.
ak4535_reg should be 8bit, but cache table is defined as 16bit.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Kuninori Morimoto [Thu, 13 Oct 2011 09:03:54 +0000 (02:03 -0700)]
ASoC: ak4642: fixup cache register table
commit
19b115e523208a926813751aac8934cf3fc6085e upstream.
ak4642 register was 8bit, but cache table was defined as 16bit.
ak4642 doesn't work correctry without this patch.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Axel Lin [Mon, 17 Oct 2011 12:14:56 +0000 (20:14 +0800)]
ASoC: wm8741: Fix setting interface format for DSP modes
commit
3a340104fad6ecbea5ad6792a2ea855f0507a6e0 upstream.
According to the datasheet:
Format Control (05h)
BITS[3:2]
FMT[1:0] Audio data format selection
00 = right justified mode
01 = left justified mode
10 = I2S mode
11 = DSP mode
BIT[4] LRP Polarity selec for LRCLK/DSP mode select
0 = normal LRCLK poalrity/DSP mode A
1 = inverted LRCLK poarity/DSP mode B
For SND_SOC_DAIFMT_DSP_A, we should set 0x000C instead of 0x0003.
For SND_SOC_DAIFMT_DSP_B, we should set 0x001C instead of 0x0013.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Liam Girdwood <lrg@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Axel Lin [Wed, 26 Oct 2011 01:53:41 +0000 (09:53 +0800)]
ASoC: wm8940: Properly set codec->dapm.bias_level
commit
5927f94700e860ae27ff24e7f3bc9e4f7b9922eb upstream.
Reported-by: Chris Paulson-Ellis <chris@edesix.com>
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Daniel Vetter [Wed, 28 Sep 2011 09:57:23 +0000 (11:57 +0200)]
io-mapping: ensure io_mapping_map_atomic _is_ atomic
commit
24dd85ff723f142093f44244764b9b5c152235b8 upstream.
For the !HAVE_ATOMIC_IOMAP case the stub functions did not call
pagefault_disable/_enable. The i915 driver relies on the map
actually being atomic, otherwise it can deadlock with it's own
pagefault handler in the gtt pwrite fastpath.
This is exercised by gem_mmap_gtt from the intel-gpu-toosl gem
testsuite.
v2: Chris Wilson noted the lack of an include.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=38115
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Bryan Schumaker [Fri, 7 Oct 2011 17:41:15 +0000 (13:41 -0400)]
vfs: add "device" tag to /proc/self/mountstats
commit
a877ee03ac010ded434b77f7831f43cbb1fcc60f upstream.
nfsiostat was failing to find mounted filesystems on kernels after
2.6.38 because of changes to show_vfsstat() by commit
c7f404b40a3665d9f4e9a927cc5c1ee0479ed8f9. This patch adds back the
"device" tag before the nfs server entry so scripts can parse the
mountstats file correctly.
Signed-off-by: Bryan Schumaker <bjschuma@netapp.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Al Viro [Thu, 28 Jul 2011 02:21:58 +0000 (22:21 -0400)]
hppfs: missing include
commit
d6b722aa383a467a43d09ee38e866981abba08ab upstream.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Cc: Miklos Szeredi <miklos@szeredi.hu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
J. Bruce Fields [Mon, 10 Oct 2011 21:34:31 +0000 (17:34 -0400)]
nfsd4: ignore WANT bits in open downgrade
commit
c30e92df30d7d5fe65262fbce5d1b7de675fe34e upstream.
We don't use WANT bits yet--and sending them can probably trigger a
BUG() further down.
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
J. Bruce Fields [Mon, 19 Sep 2011 19:07:41 +0000 (15:07 -0400)]
nfsd4: fix open downgrade, again
commit
3d02fa29dec920c597dd7b7db608a4bc71f088ce upstream.
Yet another open-management regression:
- nfs4_file_downgrade() doesn't remove the BOTH access bit on
downgrade, so the server's idea of the stateid's access gets
out of sync with the client's. If we want to keep an O_RDWR
open in this case, we should do that in the file_put_access
logic rather than here.
- We forgot to convert v4 access to an open mode here.
This logic has proven too hard to get right. In the future we may
consider:
- reexamining the lock/openowner relationship (locks probably
don't really need to take their own references here).
- adding open upgrade/downgrade support to the vfs.
- removing the atomic operations. They're redundant as long as
this is all under some other lock.
Also, maybe some kind of additional static checking would help catch
O_/NFS4_SHARE_ACCESS confusion.
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
J. Bruce Fields [Thu, 25 Aug 2011 14:48:39 +0000 (10:48 -0400)]
nfsd4: permit read opens of executable-only files
commit
a043226bc140a2c1dde162246d68a67e5043e6b2 upstream.
A client that wants to execute a file must be able to read it. Read
opens over nfs are therefore implicitly allowed for executable files
even when those files are not readable.
NFSv2/v3 get this right by using a passed-in NFSD_MAY_OWNER_OVERRIDE on
read requests, but NFSv4 has gotten this wrong ever since
dc730e173785e29b297aa605786c94adaffe2544 "nfsd4: fix owner-override on
open", when we realized that the file owner shouldn't override
permissions on non-reclaim NFSv4 opens.
So we can't use NFSD_MAY_OWNER_OVERRIDE to tell nfsd_permission to allow
reads of executable files.
So, do the same thing we do whenever we encounter another weird NFS
permission nit: define yet another NFSD_MAY_* flag.
The industry's future standardization on 128-bit processors will be
motivated primarily by the need for integers with enough bits for all
the NFSD_MAY_* flags.
Reported-by: Leonardo Borda <leonardoborda@gmail.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
J. Bruce Fields [Wed, 10 Aug 2011 23:16:22 +0000 (19:16 -0400)]
nfsd4: fix seqid_mutating_error
commit
576163005de286bbd418fcb99cfd0971523a0c6d upstream.
The set of errors here does *not* agree with the set of errors specified
in the rfc!
While we're there, turn this macros into a function, for the usual
reasons, and move it to the one place where it's actually used.
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
J. Bruce Fields [Wed, 10 Aug 2011 23:07:33 +0000 (19:07 -0400)]
nfsd4: stop using nfserr_resource for transitory errors
commit
3e77246393c0a433247631a1f0e9ec98d3d78a1c upstream.
The server is returning nfserr_resource for both permanent errors and
for errors (like allocation failures) that might be resolved by retrying
later. Save nfserr_resource for the former and use delay/jukebox for
the latter.
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Bernd Schubert [Mon, 8 Aug 2011 15:38:08 +0000 (17:38 +0200)]
nfsd4: Remove check for a 32-bit cookie in nfsd4_readdir()
commit
832023bffb4b493f230be901f681020caf3ed1f8 upstream.
Fan Yong <yong.fan@whamcloud.com> noticed setting
FMODE_32bithash wouldn't work with nfsd v4, as
nfsd4_readdir() checks for 32 bit cookies. However, according to RFC 3530
cookies have a 64 bit type and cookies are also defined as u64 in
'struct nfsd4_readdir'. So remove the test for >32-bit values.
Signed-off-by: Bernd Schubert <bernd.schubert@itwm.fraunhofer.de>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Jeff Layton [Wed, 12 Oct 2011 14:57:42 +0000 (10:57 -0400)]
nfs: don't try to migrate pages with active requests
commit
2da956523526e440ef4f4dd174e26f5ac06fe011 upstream.
nfs_find_and_lock_request will take a reference to the nfs_page and
will then put it if the req is already locked. It's possible though
that the reference will be the last one. That put then can kick off
a whole series of reference puts:
nfs_page
nfs_open_context
dentry
inode
If the inode ends up being deleted, then the VFS will call
truncate_inode_pages. That function will try to take the page lock, but
it was already locked when migrate_page was called. The code
deadlocks.
Fix this by simply refusing the migration request if PagePrivate is
already set, indicating that the page is already associated with an
active read or write request.
We've had a customer test a backported version of this patch and
the preliminary results seem good.
Cc: Andrea Arcangeli <aarcange@redhat.com>
Reported-by: Harshula Jayasuriya <harshula@redhat.com>
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Ian Campbell [Mon, 3 Oct 2011 14:37:00 +0000 (15:37 +0100)]
genirq: Add IRQF_RESUME_EARLY and resume such IRQs earlier
commit
9bab0b7fbaceec47d32db51cd9e59c82fb071f5a upstream.
This adds a mechanism to resume selected IRQs during syscore_resume
instead of dpm_resume_noirq.
Under Xen we need to resume IRQs associated with IPIs early enough
that the resched IPI is unmasked and we can therefore schedule
ourselves out of the stop_machine where the suspend/resume takes
place.
This issue was introduced by
676dc3cf5bc3 "xen: Use IRQF_FORCE_RESUME".
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Cc: Rafael J. Wysocki <rjw@sisk.pl>
Cc: Jeremy Fitzhardinge <Jeremy.Fitzhardinge@citrix.com>
Cc: xen-devel <xen-devel@lists.xensource.com>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Link: http://lkml.kernel.org/r/1318713254.11016.52.camel@dagon.hellion.org.uk
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Steven Rostedt [Fri, 14 Oct 2011 14:44:25 +0000 (10:44 -0400)]
tracing: Fix returning of duplicate data after EOF in trace_pipe_raw
commit
436fc280261dcfce5af38f08b89287750dc91cd2 upstream.
The trace_pipe_raw handler holds a cached page from the time the file
is opened to the time it is closed. The cached page is used to handle
the case of the user space buffer being smaller than what was read from
the ring buffer. The left over buffer is held in the cache so that the
next read will continue where the data left off.
After EOF is returned (no more data in the buffer), the index of
the cached page is set to zero. If a user app reads the page again
after EOF, the check in the buffer will see that the cached page
is less than page size and will return the cached page again. This
will cause reading the trace_pipe_raw again after EOF to return
duplicate data, making the output look like the time went backwards
but instead data is just repeated.
The fix is to not reset the index right after all data is read
from the cache, but to reset it after all data is read and more
data exists in the ring buffer.
Reported-by: Jeremy Eder <jeder@redhat.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Masami Hiramatsu [Tue, 4 Oct 2011 10:45:04 +0000 (19:45 +0900)]
perf probe: Fix to show correct error string
commit
44a56040a0037a845d5fa218dffde464579f0cab upstream.
Fix perf probe to show correct error string when it
fails to delete an event. The write(2) returns -1
if failed, and errno stores real error number.
Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Ingo Molnar <mingo@elte.hu>
Link: http://lkml.kernel.org/r/20111004104504.14591.41266.stgit@fedora15
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
NeilBrown [Tue, 25 Oct 2011 23:31:04 +0000 (10:31 +1100)]
md/raid5: fix bug that could result in reads from a failed device.
commit
355840e7a7e56bb2834fd3b0da64da5465f8aeaa upstream.
This bug was introduced in
415e72d034c50520ddb7ff79e7d1792c1306f0c9
which was in 2.6.36.
There is a small window of time between when a device fails and when
it is removed from the array. During this time we might still read
from it, but we won't write to it - so it is possible that we could
read stale data.
We didn't need the test of 'Faulty' before because the test on
In_sync is sufficient. Since we started allowing reads from the early
part of non-In_sync devices we need a test on Faulty too.
This is suitable for any kernel from 2.6.36 onwards, though the patch
might need a bit of tweaking in 3.0 and earlier.
Signed-off-by: NeilBrown <neilb@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Jan Beulich [Wed, 28 Sep 2011 15:44:54 +0000 (16:44 +0100)]
apic, i386/bigsmp: Fix false warnings regarding logical APIC ID mismatches
commit
838312be46f3abfbdc175f81c3e54a857994476d upstream.
These warnings (generally one per CPU) are a result of
initializing x86_cpu_to_logical_apicid while apic_default is
still in use, but the check in setup_local_APIC() being done
when apic_bigsmp was already used as an override in
default_setup_apic_routing():
Overriding APIC driver with bigsmp
Enabling APIC mode: Physflat. Using 5 I/O APICs
------------[ cut here ]------------
WARNING: at .../arch/x86/kernel/apic/apic.c:1239
...
CPU 1 irqstacks, hard=
f1c9a000 soft=
f1c9c000
Booting Node 0, Processors #1
smpboot cpu 1: start_ip = 9e000
Initializing CPU#1
------------[ cut here ]------------
WARNING: at .../arch/x86/kernel/apic/apic.c:1239
setup_local_APIC+0x137/0x46b() Hardware name: ...
CPU1 logical APIC ID: 2 != 8
...
Fix this (for the time being, i.e. until
x86_32_early_logical_apicid() will get removed again, as Tejun
says ought to be possible) by overriding the previously stored
values at the point where the APIC driver gets overridden.
v2: Move this and the pre-existing override logic into
arch/x86/kernel/apic/bigsmp_32.c.
Signed-off-by: Jan Beulich <jbeulich@suse.com>
Acked-by: Tejun Heo <tj@kernel.org>
Link: http://lkml.kernel.org/r/4E835D16020000780005844C@nat28.tlf.novell.com
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
hank [Tue, 20 Sep 2011 20:53:39 +0000 (13:53 -0700)]
time: Change jiffies_to_clock_t() argument type to unsigned long
commit
cbbc719fccdb8cbd87350a05c0d33167c9b79365 upstream.
The parameter's origin type is long. On an i386 architecture, it can
easily be larger than 0x80000000, causing this function to convert it
to a sign-extended u64 type.
Change the type to unsigned long so we get the correct result.
Signed-off-by: hank <pyu@redhat.com>
Cc: John Stultz <john.stultz@linaro.org>
[ build fix ]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Luciano Coelho [Thu, 22 Sep 2011 07:06:10 +0000 (10:06 +0300)]
wl12xx: fix forced passive scans
commit
6cd9d21a0c1e2648c07c32c66bb25795ad3208aa upstream.
We were using incorrect max and min dwell times during forced passive
scans because we were still using the active scan states to scan
(passively) the channels that were not marked as passive.
Instead of doing passive scans in active states, we now skip active
states and scan for all channels in passive states.
Signed-off-by: Luciano Coelho <coelho@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Richard Cochran [Fri, 21 Oct 2011 00:49:15 +0000 (00:49 +0000)]
net: hold sock reference while processing tx timestamps
commit
da92b194cc36b5dc1fbd85206aeeffd80bee0c39 upstream.
The pair of functions,
* skb_clone_tx_timestamp()
* skb_complete_tx_timestamp()
were designed to allow timestamping in PHY devices. The first
function, called during the MAC driver's hard_xmit method, identifies
PTP protocol packets, clones them, and gives them to the PHY device
driver. The PHY driver may hold onto the packet and deliver it at a
later time using the second function, which adds the packet to the
socket's error queue.
As pointed out by Johannes, nothing prevents the socket from
disappearing while the cloned packet is sitting in the PHY driver
awaiting a timestamp. This patch fixes the issue by taking a reference
on the socket for each such packet. In addition, the comments
regarding the usage of these function are expanded to highlight the
rule that PHY drivers must use skb_complete_tx_timestamp() to release
the packet, in order to release the socket reference, too.
These functions first appeared in v2.6.36.
Reported-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Richard Cochran <richard.cochran@omicron.at>
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Reviewed-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Johannes Berg [Tue, 4 Oct 2011 16:27:10 +0000 (18:27 +0200)]
mac80211: fix offchannel TX cookie matching
commit
28a1bcdb57d50f3038a255741ecc83e391e5282e upstream.
When I introduced in-kernel off-channel TX I
introduced a bug -- the work can't be canceled
again because the code clear the skb pointer.
Fix this by keeping track separately of whether
TX status has already been reported.
Reported-by: Jouni Malinen <j@w1.fi>
Tested-by: Jouni Malinen <j@w1.fi>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Richard Cochran [Fri, 21 Oct 2011 00:49:17 +0000 (00:49 +0000)]
dp83640: free packet queues on remove
commit
8b3408f8ee994973869d8ba32c5bf482bc4ddca4 upstream.
If the PHY should disappear (for example, on an USB Ethernet MAC), then
the driver would leak any undelivered time stamp packets. This commit
fixes the issue by calling the appropriate functions to free any packets
left in the transmit and receive queues.
The driver first appeared in v3.0.
Signed-off-by: Richard Cochran <richard.cochran@omicron.at>
Acked-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Eric W. Biederman [Fri, 21 Oct 2011 06:24:20 +0000 (06:24 +0000)]
rtnetlink: Add missing manual netlink notification in dev_change_net_namespaces
commit
d2237d35748e7f448a9c2d9dc6a85ef637466e24 upstream.
Renato Westphal noticed that since commit
a2835763e130c343ace5320c20d33c281e7097b7
"rtnetlink: handle rtnl_link netlink notifications manually" was merged
we no longer send a netlink message when a networking device is moved
from one network namespace to another.
Fix this by adding the missing manual notification in dev_change_net_namespaces.
Since all network devices that are processed by dev_change_net_namspaces are
in the initialized state the complicated tests that guard the manual
rtmsg_ifinfo calls in rollback_registered and register_netdevice are
unnecessary and we can just perform a plain notification.
Tested-by: Renato Westphal <renatowestphal@gmail.com>
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Ming Lei [Fri, 7 Oct 2011 03:50:22 +0000 (11:50 +0800)]
ata_piix: make DVD Drive recognisable on systems with Intel Sandybridge chipsets(v2)
commit
5e5a4f5d5a08c9c504fe956391ac3dae2c66556d upstream.
This quirk patch fixes one kind of bug inside some Intel Sandybridge
chipsets, see reports from
https://bugzilla.kernel.org/show_bug.cgi?id=40592.
Many guys also have reported the problem before:
https://bugs.launchpad.net/bugs/737388
https://bugs.launchpad.net/bugs/794642
https://bugs.launchpad.net/bugs/782389
......
With help from Tejun, the problem is found to be caused by 32bit PIO
mode, so introduce the quirk patch to disable 32bit PIO on SATA piix
for some Sandybridge CPT chipsets.
Seth also tested the patch on all five affected chipsets
(pci device ID: 0x1c00, 0x1c01, 0x1d00, 0x1e00, 0x1e01), and found
the patch does fix the problem.
Tested-by: Heasley, Seth <seth.heasley@intel.com>
Cc: Alan Cox <alan@linux.intel.com>
Signed-off-by: Ming Lei <ming.lei@canonical.com>
Acked-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Jeff Layton [Tue, 11 Oct 2011 13:49:21 +0000 (09:49 -0400)]
nfs: don't redirty inode when ncommit == 0 in nfs_commit_unstable_pages
commit
3236c3e1adc0c7ec83eaff1de2d06746b7c5bb28 upstream.
commit
420e3646 allowed the kernel to reduce the number of unnecessary
commit calls by skipping the commit when there are a large number of
outstanding pages.
However, the current test in nfs_commit_unstable_pages does not handle
the edge condition properly. When ncommit == 0, then that means that the
kernel doesn't need to do anything more for the inode. The current test
though in the WB_SYNC_NONE case will return true, and the inode will end
up being marked dirty. Once that happens the inode will never be clean
until there's a WB_SYNC_ALL flush.
Fix this by immediately returning from nfs_commit_unstable_pages when
ncommit == 0.
Mike noticed this problem initially in RHEL5 (2.6.18-based kernel) which
has a backported version of
420e3646. The inode cache there was growing
very large. The inode cache was unable to be shrunk since the inodes
were all marked dirty. Calling sync() would essentially "fix" the
problem -- the WB_SYNC_ALL flush would result in the inodes all being
marked clean.
What I'm not clear on is how big a problem this is in mainline kernels
as the writeback code there is very different. Either way, it seems
incorrect to re-mark the inode dirty in this case.
Reported-by: Mike McLean <mikem@redhat.com>
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Trond Myklebust [Tue, 18 Oct 2011 01:22:55 +0000 (18:22 -0700)]
Revert "NFS: Ensure that writeback_single_inode() calls write_inode() when syncing"
commit
59b7c05fffba030e5d9e72324691e2f99aa69b79 upstream.
This reverts commit
b80c3cb628f0ebc241b02e38dd028969fb8026a2.
The reverted commit was rendered obsolete by a VFS fix: commit
5547e8aac6f71505d621a612de2fca0dd988b439 (writeback: Update dirty flags in
two steps). We now no longer need to worry about writeback_single_inode()
missing our marking the inode for COMMIT in 'do_writepages()' call.
Reverting this patch, fixes a performance regression in which the inode
would continuously get queued to the dirty list, causing the writeback
code to unnecessarily try to send a COMMIT.
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Tested-by: Simon Kirby <sim@hostway.ca>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Jiri Kosina [Wed, 26 Oct 2011 02:40:39 +0000 (13:10 +1030)]
kmod: prevent kmod_loop_msg overflow in __request_module()
commit
37252db6aa576c34fd794a5a54fb32d7a8b3a07a upstream.
Due to post-increment in condition of kmod_loop_msg in __request_module(),
the system log can be spammed by much more than 5 instances of the 'runaway
loop' message if the number of events triggering it makes the kmod_loop_msg
to overflow.
Fix that by making sure we never increment it past the threshold.
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
David Herrmann [Tue, 20 Sep 2011 16:16:12 +0000 (09:16 -0700)]
Platform: Fix error path in samsung-laptop init
commit
a7ea19926ffba86f373f6050a106cd162dbb9a78 upstream.
samsung_init() should not return success if not all devices are initialized.
Otherwise, samsung_exit() will dereference sdev NULL pointers and others.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Jason Stubbs [Tue, 20 Sep 2011 16:16:11 +0000 (09:16 -0700)]
platform: samsung_laptop: fix samsung brightness min/max calculations
commit
bee460be8c691c544e84ed678280ace6153104c6 upstream.
The min_brightness value of the sabi_config is incorrectly used in brightness
calculations. For the config where min_brightness = 1 and max_brightness = 8,
the user visible range should be 0 to 7 with hardware being set in the range
of 1 to 8. What is actually happening is that the user visible range is 0 to
8 with hardware being set in the range of -1 to 7.
This patch fixes the above issue as well as a miscalculation that would occur
in the case of min_brightness > 1.
Signed-off-by: Jason Stubbs <jasonbstubbs@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Smelov Andrey [Tue, 20 Sep 2011 16:16:10 +0000 (09:16 -0700)]
Platform: samsung_laptop: samsung backlight for R528/R728
commit
093ed561648d43263c009ea88abab21a31cd4f1d upstream.
patch works for me, but I need to add "acpi_backlight=vendor" to kernel
params
Signed-off-by: Smelov Andrey <xor29a@bk.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Tommaso Massimi [Tue, 20 Sep 2011 16:16:09 +0000 (09:16 -0700)]
Platform: samsung_laptop: add support for X520 machines.
commit
7500eeb08a179e61a4219288c21407d63d1e9c64 upstream.
my samsung laptop would be very happy if you add
these lines to the file drivers/platform/x86/samsung-laptop.c
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Stefan Beller [Tue, 20 Sep 2011 16:16:08 +0000 (09:16 -0700)]
platform: samsung_laptop: add dmi information for Samsung R700 laptops
commit
f87d02996f05ec1789ceecce9ec839f629b7aa80 upstream.
My DMI model is this:
>dmesg |grep DMI
[ 0.000000] DMI present.
[ 0.000000] DMI: SAMSUNG ELECTRONICS CO., LTD. SR700/SR700, BIOS
04SR 02/20/2008
adding dmi information of Samsung R700 laptops
This adds the dmi information of Samsungs R700 laptops.
Signed-off-by: Stefan Beller <stefanbeller@googlemail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
David Woodhouse [Mon, 24 Oct 2011 21:25:21 +0000 (21:25 +0000)]
caif: Fix BUG() with network namespaces
commit
08613e4626c06ca408fc55071f6aedee36986a87 upstream.
The caif code will register its own pernet_operations, and then register
a netdevice_notifier. Each time the netdevice_notifier is triggered,
it'll do some stuff... including a lookup of its own pernet stuff with
net_generic().
If the net_generic() call ever returns NULL, the caif code will BUG().
That doesn't seem *so* unreasonable, I suppose — it does seem like it
should never happen.
However, it *does* happen. When we clone a network namespace,
setup_net() runs through all the pernet_operations one at a time. It
gets to loopback before it gets to caif. And loopback_net_init()
registers a netdevice... while caif hasn't been initialised. So the caif
netdevice notifier triggers, and immediately goes BUG().
We could imagine a complex and overengineered solution to this generic
class of problems, but this patch takes the simple approach. It just
makes caif_device_notify() *not* go looking for its pernet data
structures if the device it's being notified about isn't a caif device
in the first place.
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Acked-by: Sjur Brændeland <sjur.brandeland@stericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Milan Broz [Mon, 22 Aug 2011 13:51:34 +0000 (15:51 +0200)]
kobj_uevent: Ignore if some listeners cannot handle message
commit
ebf4127cd677e9781b450e44dfaaa1cc595efcaa upstream.
kobject_uevent() uses a multicast socket and should ignore
if one of listeners cannot handle messages or nobody is
listening at all.
Easily reproducible when a process in system is cloned
with CLONE_NEWNET flag.
(See also http://article.gmane.org/gmane.linux.kernel.device-mapper.dm-crypt/5256)
Signed-off-by: Milan Broz <mbroz@redhat.com>
Acked-by: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Konrad Rzeszutek Wilk [Fri, 22 Jul 2011 16:51:48 +0000 (12:51 -0400)]
xen-swiotlb: Fix wrong panic.
commit
ab2a47bd242d6cdcf6b2b64797f271c6f0a6d338 upstream.
Propagate the baremetal git commit "swiotlb: fix wrong panic"
(
fba99fa38b023224680308a482e12a0eca87e4e1) in the Xen-SWIOTLB version.
wherein swiotlb's map_page wrongly calls panic() when it can't find
a buffer fit for device's dma mask. It should return an error instead.
Devices with an odd dma mask (i.e. under 4G) like b44 network card hit
this bug (the system crashes):
http://marc.info/?l=linux-kernel&m=
129648943830106&w=2
If xen-swiotlb returns an error, b44 driver can use the own bouncing
mechanism.
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Konrad Rzeszutek Wilk [Fri, 22 Jul 2011 16:18:43 +0000 (12:18 -0400)]
xen-pcifront: Update warning comment to use 'e820_host' option.
commit
917e3e65c35459d52f0d0b890aa5df0cad07a051 upstream.
With Xen changeset 23428 "libxl: Add 'e820_host' option to config file"
the E820 as seen from the host can now be passed into the guest.
This means that a PV guest can now:
- Use the correct PCI I/O gap. Before these patches, Linux guest would
boot up and would tell:
[ 0.000000] Allocating PCI resources starting at
40000000 (gap:
40000000:
c0000000)
while in actuality the PCI I/O gap should have been:
[ 0.000000] Allocating PCI resources starting at
b0000000 (gap:
b0000000:
4c000000)
- The PV domain with PCI devices was limited to 3GB. It now can be booted
with 4GB, 8GB, or whatever number you want. The PCI devices will now _not_ conflict
with System RAM. Meaning the drivers can load.
CC: Jesse Barnes <jbarnes@virtuousgeek.org>
CC: linux-pci@vger.kernel.org
[v2: Made the string less broken up. Suggested by Joe Perches]
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Josh Boyer [Tue, 18 Oct 2011 01:16:39 +0000 (21:16 -0400)]
Update email address for stable patch submission
commit
5fa224295f0e0358c8bc0e5390702338df889def upstream.
The stable@kernel.org email address has been replaced with the
stable@vger.kernel.org mailing list. Change the stable kernel rules to
reference the new list instead of the semi-defunct email alias.
Signed-off-by: Josh Boyer <jwboyer@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Jerry Huang [Tue, 18 Oct 2011 05:09:48 +0000 (13:09 +0800)]
QE/FHCI: fixed the CONTROL bug
commit
273d23574f9dacd9c63c80e7d63639a669aad441 upstream.
For USB CONTROL transaction, when the data length is zero,
the IN package is needed to finish this transaction in status stage.
Signed-off-by: Jerry Huang <r66093@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Sergei Kolzun [Thu, 4 Aug 2011 07:25:56 +0000 (00:25 -0700)]
HID: ACRUX - fix enabling force feedback support
commit
364b936fc38dec7653c690d710e10657af235a36 upstream.
The config option needs to be a 'bool' and not a tristate, otheriwse
force feedback support never makes it into the module.
Signed-off-by: Sergei Kolzun <x0r@dv-life.ru>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Felix Fietkau [Sat, 8 Oct 2011 13:49:57 +0000 (15:49 +0200)]
ath9k: disable unnecessary PHY error reporting
commit
ac06697c79bad09e44a8b1d52104014016fb90de upstream.
PHY errors relevant for ANI are always tracked by hardware counters, the
bits that allow them to pass through the rx filter are independent of that.
Enabling PHY errors in the rx filter often creates lots of useless DMA traffic
and might be responsible for some of the rx dma stop failure warnings.
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Mohammed Shafi Shajakhan [Fri, 30 Sep 2011 06:01:27 +0000 (11:31 +0530)]
ath9k_hw: Fix number of GPIO pins for AR9287/9300
commit
6321eb0977b011ac61dfca36e7c69b2c4325b104 upstream.
this patch fixes the assumption of maximum number of GPIO pins present
in AR9287/AR9300. this fix is essential as we might encounter some
functionality issues involved in accessing the status of GPIO pins which
are all incorrectly assumed to be not within the range of max_num_gpio
of AR9300/AR9287 chipsets
Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Luis R. Rodriguez [Thu, 29 Sep 2011 17:42:19 +0000 (10:42 -0700)]
ath9k_htc: add AVM FRITZ!WLAN 11N v2 support
commit
8c34559b4a6df32e4af1b073397fa4dc189a5485 upstream.
This was reported and tested by Martin Walter over at AVM GmbH Berlin.
This also applies to 3.0.1 so sendint to stable.
Cc: s.kirste@avm.de
Cc: d.friedel@avm.de
Cc: Martin Walter <m.walter@avm.de>
Cc: Peter Grabienski <pgrabien@qca.qualcomm.com>
Tested-by: Martin Walter <m.walter@avm.de>
Signed-off-by: Luis R. Rodriguez <mcgrof@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Rajkumar Manoharan [Thu, 15 Sep 2011 13:32:25 +0000 (19:02 +0530)]
ath9k_hw: Fix magnitude/phase coeff correction
commit
e9c10469cf3c71bc1c6b0f01319161e277d6ac9b upstream.
Do the magnitude/phase coeff correction only if the outlier
is detected. Updating wrong magnitude/phase coeff factor
impacts not only tx gain setting but also leads to poor
performance in congested networks. In the clear environment
the impact is very minimal because the outlier happens
very rarely according to the past experiment. It occured
less than once every 1000 calibrations.
Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Rajkumar Manoharan [Sat, 20 Aug 2011 11:52:09 +0000 (17:22 +0530)]
ath9k_hw: Fix descriptor status of TxOpExceeded
commit
2a15b394f8e46dd3e2ab365ab41cfa701d92fa77 upstream.
Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Luis R. Rodriguez [Tue, 23 Aug 2011 22:07:31 +0000 (15:07 -0700)]
MAINTANERS: update Qualcomm Atheros addresses
commit
fe8e084455f273b32cc57a5fbaf6c22ef984d657 upstream.
Qualcomm ate up Atheros, all of the old e-mail addresses
no longer work and e-mails sent to it will bounce. Update
the addresses to the new shiny Qualcomm Atheros (QCA) ones.
Cc: stable@kernel.org
Cc: netdev@vger.kernel.org
Cc: jouni@qca.qualcomm.com
Cc: yangjie@qca.qualcomm.com
Cc: vthiagar@qca.qualcomm.com
Cc: senthilb@qca.qualcomm.com
Signed-off-by: Luis R. Rodriguez <mcgrof@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Dan Williams [Tue, 13 Sep 2011 18:52:52 +0000 (13:52 -0500)]
USB: option: add various ZTE device network interfaces to the blacklist
commit
c58a76cdd7ab5a945a44fd2d64f6faf40323f95b upstream.
IDs found in the Windows driver's ZTEusbnet.inf file from the
ZTE MF100 drivers (O2 UK). Also fixes the ZTE MF626 device
since it really is distinct from the 4G Systems stick and
apparently needs the net interface blacklisted too, while
there's no indication (yet) that the 4G Systems stick does.
Signed-off-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Dan Williams [Tue, 13 Sep 2011 18:51:45 +0000 (13:51 -0500)]
USB: option: add ZTE product 0x0037 to sendsetup blacklist
commit
eb05ce567a81c592c58f4bdb96eb91ce96661c30 upstream.
Signed-off-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Dan Williams [Tue, 13 Sep 2011 18:51:13 +0000 (13:51 -0500)]
USB: option: convert Huawei K3765, K4505, K4605 reservered interface to blacklist
commit
0d905fd5ece4ab65e8407c450077744e1c8f661b upstream.
That's what the blacklist is for...
Signed-off-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Dan Williams [Tue, 13 Sep 2011 18:49:41 +0000 (13:49 -0500)]
USB: option: convert interface blacklisting to bitfields
commit
b4626c10928c13ee73b013dcbc23676333e79b59 upstream.
It's cleaner than the array stuff, and we're about to add a bunch
more blacklist entries. Second, there are devices that need both
the sendsetup and the reserved interface blacklists, which the
current code can't accommodate.
Signed-off-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Peter Stuge [Mon, 10 Oct 2011 01:34:54 +0000 (03:34 +0200)]
USB: ftdi_sio: Support TI/Luminary Micro Stellaris BD-ICDI Board
commit
3687f641307eeff6f7fe31a88dc39db88e89238b upstream.
Some Stellaris evaluation kits have the JTAG/SWD FTDI chip onboard,
and some, like EK-LM3S9B90, come with a separate In-Circuit Debugger
Interface Board. The ICDI board can also be used stand-alone, for
other boards and chips than the kit it came with. The ICDI has both
old style 20-pin JTAG connector and new style JTAG/SWD 10-pin 1.27mm
pitch connector.
Tested with EK-LM3S9B90, where the BD-ICDI board is included.
Signed-off-by: Peter Stuge <peter@stuge.se>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Hakan Kvist [Mon, 3 Oct 2011 11:41:15 +0000 (13:41 +0200)]
USB: ftdi_sio: add PID for Sony Ericsson Urban
commit
74bdf22b5c3858b06af46f19d05c23e76c40a3bb upstream.
Add PID 0xfc8a, 0xfc8b for device Sony Ericsson Urban
Signed-off-by: Hakan Kvist <hakan.kvist@sonyericsson.com>
Signed-off-by: Oskar Andero <oskar.andero@sonyericsson.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Eric Benoit [Sat, 24 Sep 2011 06:04:50 +0000 (02:04 -0400)]
USB: pl2303: add id for SMART device
commit
598f0b703506da841d3459dc0c48506be14d1778 upstream.
Add vendor and product ID for the SMART USB to serial adapter. These
were meant to be used with their SMART Board whiteboards, but can be
re-purposed for other tasks. Tested and working (at at least 9600 bps).
Signed-off-by: Eric Benoit <eric@ecks.ca>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Jon Levell [Thu, 29 Sep 2011 19:42:52 +0000 (20:42 +0100)]
USB: add quirk for Logitech C300 web cam
commit
5b253d88cc6c65a23cefc457a5a4ef139913c5fc upstream.
My webcam is a Logitech C300 and I get "chipmunk"ed squeaky sound.
The following trivial patch fixes it.
Signed-off-by: Jon Levell <linuxusb@coralbark.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Oliver Neukum [Tue, 13 Sep 2011 06:42:21 +0000 (08:42 +0200)]
USB: add RESET_RESUME for webcams shown to be quirky
commit
2394d67e446bf616a0885167d5f0d397bdacfdfc upstream.
The new runtime PM code has shown that many webcams suffer
from a race condition that may crash them upon resume.
Runtime PM is especially prone to show the problem because
it retains power to the cameras at all times. However
system suspension may also crash the devices and retain
power to the devices.
The only way to solve this problem without races is in
usbcore with the RESET_RESUME quirk.
Signed-off-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Denis Pershin [Sun, 4 Sep 2011 10:37:21 +0000 (17:37 +0700)]
usb: cdc-acm: Owen SI-30 support
commit
65e52f41fa944cef2e6d4222b8c54f46cc575214 upstream.
here is the patch to support Owen SI-30 device.
This is a pulse counter controller.
http://www.owen.ru/en/catalog/
93788515
usb-drivers output:
T: Bus=01 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#= 4 Spd=12 MxCh= 0
D: Ver= 2.00 Cls=02(commc) Sub=00 Prot=00 MxPS= 8 #Cfgs= 1
P: Vendor=03eb ProdID=0030 Rev=01.01
C: #Ifs= 2 Cfg#= 1 Atr=c0 MxPwr=0mA
I: If#= 0 Alt= 0 #EPs= 1 Cls=02(commc) Sub=02 Prot=00 Driver=cdc_acm
I: If#= 1 Alt= 0 #EPs= 2 Cls=0a(data ) Sub=00 Prot=00 Driver=cdc_acm
This patch is installed on my home system which receives data from this
controller connected to cold water counter.
Signed-off-by: Denis Pershin <dyp@perchine.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Serge Hallyn [Mon, 26 Sep 2011 15:18:29 +0000 (10:18 -0500)]
USB: pid_ns: ensure pid is not freed during kill_pid_info_as_uid
commit
aec01c5895051849ed842dc5b8794017a7751f28 upstream.
Alan Stern points out that after spin_unlock(&ps->lock) there is no
guarantee that ps->pid won't be freed. Since kill_pid_info_as_uid() is
called after the spin_unlock(), the pid passed to it must be pinned.
Reported-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Serge Hallyn <serge.hallyn@canonical.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Matthias Dellweg [Sun, 25 Sep 2011 12:26:25 +0000 (14:26 +0200)]
usb/core/devio.c: Check for printer class specific request
commit
393cbb5151ecda9f9e14e3082d048dd27a1ff9f6 upstream.
In the usb printer class specific request get_device_id the value of
wIndex is (interface << 8 | altsetting) instead of just interface.
This enables the detection of some printers with libusb.
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Matthias Dellweg <2500@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Fabian Godehardt [Thu, 1 Sep 2011 12:15:46 +0000 (14:15 +0200)]
USB: g_printer: fix bug in unregistration
commit
8582d86143c690c68cc42f996def466a035bee34 upstream.
The allocated chardevice region range is only 1 device but on
unregister it currently tries to deregister 2.
Found this while doing a insmod/rmmod/insmod/rm... of the module
which seemed to eat major numbers.
Signed-off-by: Fabian Godehardt <fg@emlix.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Matthew Garrett [Thu, 6 Oct 2011 19:35:43 +0000 (15:35 -0400)]
USB: Fix runtime wakeup on OHCI
commit
a8b43c00ef06aec49b9fe0a5bad8a6a320e4d27b upstream.
At least some OHCI hardware (such as the MCP89) fails to flag any change
in the host status register or the port status registers when receiving
a remote wakeup while in D3 state. This results in the controller being
resumed but no device state change being noticed, at which point the
controller is put back to sleep again. Since there doesn't seem to be any
reliable way to identify the state change, just unconditionally resume the
hub. It'll be put back to sleep in the near future anyway if there are no
active devices attached to it.
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Cc: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Luben Tuikov [Thu, 11 Nov 2010 23:43:11 +0000 (15:43 -0800)]
USB: storage: Use normalized sense when emulating autosense
commit
e16da02fcdf1c5e824432f88abf42623dafdf191 upstream.
This patch solves two things:
1) Enables autosense emulation code to correctly
interpret descriptor format sense data, and
2) Fixes a bug whereby the autosense emulation
code would overwrite descriptor format sense data
with SENSE KEY HARDWARE ERROR in fixed format, to
incorrectly look like this:
Oct 21 14:11:07 localhost kernel: sd 7:0:0:0: [sdc] Sense Key : Recovered Error [current] [descriptor]
Oct 21 14:11:07 localhost kernel: Descriptor sense data with sense descriptors (in hex):
Oct 21 14:11:07 localhost kernel: 72 01 04 1d 00 00 00 0e 09 0c 00 00 00 00 00 00
Oct 21 14:11:07 localhost kernel: 00 4f 00 c2 00 50
Oct 21 14:11:07 localhost kernel: sd 7:0:0:0: [sdc] ASC=0x4 ASCQ=0x1d
Signed-off-by: Luben Tuikov <ltuikov@yahoo.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Acked-by: Matthew Dharm <mdharm-usb@one-eyed-alien.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Johannes Stezenbach [Thu, 8 Sep 2011 13:39:15 +0000 (15:39 +0200)]
usbmon vs. tcpdump: fix dropped packet count
commit
236c448cb6e7f82096101e1ace4b77f8b38f82c8 upstream.
Report the number of dropped packets instead of zero
when using the binary usbmon interface with tcpdump.
# tcpdump -i usbmon1 -w dump
tcpdump: listening on usbmon1, link-type USB_LINUX_MMAPPED (USB with padded Linux header), capture size 65535 bytes
^C2155 packets captured
2155 packets received by filter
1019 packets dropped by kernel
Signed-off-by: Johannes Stezenbach <js@sig21.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Antonio Ospite [Tue, 1 Nov 2011 00:12:22 +0000 (17:12 -0700)]
leds: turn the blink_timer off before starting to blink
commit
488bc35bf40df89d37486c1826b178a2fba36ce7 upstream.
Depending on the implementation of the hardware blinking function in
blink_set(), the led can support hardware blinking for some values of
delay_on and delay_off and fall-back to software blinking for some other
values.
Turning off the blink_timer unconditionally before starting to blink
make sure that a sequence like:
OFF
hardware blinking
software blinking
hardware blinking
does not leave the software blinking timer active.
Signed-off-by: Antonio Ospite <ospite@studenti.unina.it>
Reviewed-by: Johannes Berg <johannes@sipsolutions.net>
Cc: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Antonio Ospite [Tue, 1 Nov 2011 00:12:19 +0000 (17:12 -0700)]
leds: save the delay values after a successful call to blink_set()
commit
6123b0e274503a0d3588e84fbe07c9aa01bfaf5d upstream.
When calling the hardware blinking function implemented by blink_set(),
the delay_on and delay_off values are not preserved across calls.
Fix that and make the "timer" trigger work as expected when hardware
blinking is available.
BEFORE the fix:
$ cd /sys/class/leds/someled
$ echo timer > trigger
$ cat delay_on delay_off
0
0
$ echo 100 > delay_on
$ cat delay_on delay_off
0
0
$ echo 100 > delay_off
$ cat delay_on delay_off
0
0
AFTER the fix:
$ cd /sys/class/leds/someled
$ echo timer > trigger
$ cat delay_on delay_off
0
0
$ echo 100 > delay_on
$ cat delay_on delay_off
100
0
$ echo 100 > delay_off
$ cat delay_on delay_off
100
100
Signed-off-by: Antonio Ospite <ospite@studenti.unina.it>
Reviewed-by: Johannes Berg <johannes@sipsolutions.net>
Cc: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Nelson Elhage [Tue, 1 Nov 2011 00:13:14 +0000 (17:13 -0700)]
epoll: fix spurious lockdep warnings
commit
d8805e633e054c816c47cb6e727c81f156d9253d upstream.
epoll can acquire recursively acquire ep->mtx on multiple "struct
eventpoll"s at once in the case where one epoll fd is monitoring another
epoll fd. This is perfectly OK, since we're careful about the lock
ordering, but it causes spurious lockdep warnings. Annotate the recursion
using mutex_lock_nested, and add a comment explaining the nesting rules
for good measure.
Recent versions of systemd are triggering this, and it can also be
demonstrated with the following trivial test program:
--------------------8<--------------------
int main(void) {
int e1, e2;
struct epoll_event evt = {
.events = EPOLLIN
};
e1 = epoll_create1(0);
e2 = epoll_create1(0);
epoll_ctl(e1, EPOLL_CTL_ADD, e2, &evt);
return 0;
}
--------------------8<--------------------
Reported-by: Paul Bolle <pebolle@tiscali.nl>
Tested-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Nelson Elhage <nelhage@nelhage.com>
Acked-by: Jason Baron <jbaron@redhat.com>
Cc: Dave Jones <davej@redhat.com>
Cc: Davide Libenzi <davidel@xmailserver.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Josh Stone [Mon, 24 Oct 2011 17:15:51 +0000 (10:15 -0700)]
x86: Fix compilation bug in kprobes' twobyte_is_boostable
commit
315eb8a2a1b7f335d40ceeeb11b9e067475eb881 upstream.
When compiling an i386_defconfig kernel with gcc-4.6.1-9.fc15.i686, I
noticed a warning about the asm operand for test_bit in kprobes'
can_boost. I discovered that this caused only the first long of
twobyte_is_boostable[] to be output.
Jakub filed and fixed gcc PR50571 to correct the warning and this output
issue. But to solve it for less current gcc, we can make kprobes'
twobyte_is_boostable[] non-const, and it won't be optimized out.
Before:
CC arch/x86/kernel/kprobes.o
In file included from include/linux/bitops.h:22:0,
from include/linux/kernel.h:17,
from [...]/arch/x86/include/asm/percpu.h:44,
from [...]/arch/x86/include/asm/current.h:5,
from [...]/arch/x86/include/asm/processor.h:15,
from [...]/arch/x86/include/asm/atomic.h:6,
from include/linux/atomic.h:4,
from include/linux/mutex.h:18,
from include/linux/notifier.h:13,
from include/linux/kprobes.h:34,
from arch/x86/kernel/kprobes.c:43:
[...]/arch/x86/include/asm/bitops.h: In function ‘can_boost.part.1’:
[...]/arch/x86/include/asm/bitops.h:319:2: warning: use of memory input
without lvalue in asm operand 1 is deprecated [enabled by default]
$ objdump -rd arch/x86/kernel/kprobes.o | grep -A1 -w bt
551: 0f a3 05 00 00 00 00 bt %eax,0x0
554: R_386_32 .rodata.cst4
$ objdump -s -j .rodata.cst4 -j .data arch/x86/kernel/kprobes.o
arch/x86/kernel/kprobes.o: file format elf32-i386
Contents of section .data:
0000
48000000 00000000 00000000 00000000 H...............
Contents of section .rodata.cst4:
0000
4c030000 L...
Only a single long of twobyte_is_boostable[] is in the object file.
After, without the const on twobyte_is_boostable:
$ objdump -rd arch/x86/kernel/kprobes.o | grep -A1 -w bt
551: 0f a3 05 20 00 00 00 bt %eax,0x20
554: R_386_32 .data
$ objdump -s -j .rodata.cst4 -j .data arch/x86/kernel/kprobes.o
arch/x86/kernel/kprobes.o: file format elf32-i386
Contents of section .data:
0000
48000000 00000000 00000000 00000000 H...............
0010
00000000 00000000 00000000 00000000 ................
0020
4c030000 0f000200 ffff0000 ffcff0c0 L...............
0030
0000ffff 3bbbfff8 03ff2ebb 26bb2e77 ....;.......&..w
Now all 32 bytes are output into .data instead.
Signed-off-by: Josh Stone <jistone@redhat.com>
Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Jakub Jelinek <jakub@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Jack Steiner [Tue, 20 Sep 2011 20:55:04 +0000 (13:55 -0700)]
x86: uv2: Workaround for UV2 Hub bug (system global address format)
commit
6a469e4665bc158599de55d64388861d0a9f10f4 upstream.
This is a workaround for a UV2 hub bug that affects the format of system
global addresses.
The GRU API for UV2 was inadvertently broken by a hardware change. The
format of the physical address used for TLB dropins and for addresses used
with instructions running in unmapped mode has changed. This change was
not documented and became apparent only when diags failed running on
system simulators.
For UV1, TLB and GRU instruction physical addresses are identical to
socket physical addresses (although high NASID bits must be OR'ed into the
address).
For UV2, socket physical addresses need to be converted. The NODE portion
of the physical address needs to be shifted so that the low bit is in bit
39 or bit 40, depending on an MMR value.
It is not yet clear if this bug will be fixed in a silicon respin. If it
is fixed, the hub revision will be incremented & the workaround disabled.
Signed-off-by: Jack Steiner <steiner@sgi.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Nicholas Bellinger [Wed, 19 Oct 2011 06:48:04 +0000 (23:48 -0700)]
target: Fix REPORT TARGET PORT GROUPS handling with small allocation length
commit
6b20fa9aaf0c2f69ee6f9648e20ab2be0206705e upstream.
This patch fixes a bug with the handling of REPORT TARGET PORT GROUPS
containing a smaller allocation length than the payload requires causing
memory writes beyond the end of the buffer. This patch checks for the
minimum 4 byte length for the response payload length, and also checks
upon each loop of T10_ALUA(su_dev)->tg_pt_gps_list to ensure the Target
port group and Target port descriptor list is able to fit into the
remaining allocation length.
If the response payload exceeds the allocation length length, then rd_len
is still increments to indicate to the initiator that the payload has
been truncated.
Reported-by: Roland Dreier <roland@purestorage.com>
Signed-off-by: Nicholas Bellinger <nab@risingtidesystems.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
David Henningsson [Tue, 18 Oct 2011 12:07:51 +0000 (14:07 +0200)]
ALSA: HDA: Add new revision for ALC662
commit
cc667a72d471e79fd8e5e291ea115923cf44dca0 upstream.
The revision 0x100300 was found for ALC662. It seems to work well
with patch_alc662.
BugLink: http://bugs.launchpad.net/bugs/877373
Tested-by: Shengyao Xue <Shengyao.xue@canonical.com>
Signed-off-by: David Henningsson <david.henningsson@canonical.com>
Acked-by: Kailang Yang <kailang@realtek.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Charles Chin [Thu, 13 Oct 2011 05:54:09 +0000 (07:54 +0200)]
ALSA: hda - Remove bad code for IDT 92HD83 family patch
commit
6c5c04e509b7000617b09d4301f0b9b6d171d1e6 upstream.
The purpose of this patch is to remove a section of "bad" code that
assigns the last DAC to ports E or F in order to support notebooks
with docking in earlier days, around ALSA 1.0.19 - 21. This is not
necessary now and actually breaks some configurations that use these
ports as other devices. This have been tested on several different
configurations to make sure that it is working for different combinations.
Signed-off-by: Charles Chin <Charles.Chin@idt.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Jeff Skirvin [Thu, 29 Sep 2011 01:35:32 +0000 (18:35 -0700)]
isci: fix missed unlock in apc_agent_timeout()
commit
983d3fdd332742167d0482c06fd29cf4b8a687c0 upstream.
Needed to jump to scic_lock unlock.
Also spotted by coccicheck.
Signed-off-by: Jeff Skirvin <jeffrey.d.skirvin@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Dan Williams [Thu, 29 Sep 2011 01:35:27 +0000 (18:35 -0700)]
isci: fix support for large smp requests
commit
54b5e3a4bfa3452bc10cd4da672099ccc46b8c09 upstream.
Kill the local smp response buffer.
Besides being unnecessary, it is too small (currently truncates
responses to 60 bytes). The mid-layer will have already allocated a
sufficiently sized buffer, just kmap and copy into it directly.
Reported-by: Derick Marks <derick.w.marks@intel.com>
Tested-by: Derick Marks <derick.w.marks@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Jack Wang [Fri, 23 Sep 2011 06:32:32 +0000 (14:32 +0800)]
libsas: set sas_address and device type of rphy
commit
bb041a0e9c31229071b6e56e1d0d8374af0d2038 upstream.
Libsas forget to set the sas_address and device type of rphy lead to file
under /sys/class/sas_x show wrong value, fix that.
Signed-off-by: Jack Wang <jack_wang@usish.com>
Tested-by: Crystal Yu <crystal_yu@usish.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Anton Blanchard [Mon, 1 Aug 2011 09:43:45 +0000 (19:43 +1000)]
ipr: Always initiate hard reset in kdump kernel
commit
5d7c20b7fa5c6ca19e871b4050e321c99d32bd43 upstream.
During kdump testing I noticed timeouts when initialising each IPR
adapter. While the driver has logic to detect an adapter in an
indeterminate state, it wasn't triggering and each adapter went
through a 5 minute timeout before finally going operational.
Some analysis showed the needs_hard_reset flag wasn't getting set.
We can check the reset_devices kernel parameter which is set by
kdump and force a full reset. This fixes the problem.
Signed-off-by: Anton Blanchard <anton@samba.org>
Acked-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
adam radford [Thu, 13 Oct 2011 23:01:12 +0000 (16:01 -0700)]
megaraid_sas: Fix instance access in megasas_reset_timer
commit
f575c5d3ebdca3b0482847d8fcba971767754a9e upstream.
The following patch for megaraid_sas will fix a potential bad pointer access
in megasas_reset_timer(), when a MegaRAID 9265/9285 or 9360/9380 gets a
timeout. megasas_build_io_fusion() sets SCp.ptr to be a struct
megasas_cmd_fusion *, but then megasas_reset_timer() was casting SCp.ptr to be
a struct megasas_cmd *, then trying to access cmd->instance, which is invalid.
Just loading instance from scmd->device->host->hostdata in
megasas_reset_timer() fixes the issue.
Signed-off-by: Adam Radford <aradford@gmail.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Josh Boyer [Wed, 5 Oct 2011 15:44:50 +0000 (11:44 -0400)]
PCI quirk: mmc: Always check for lower base frequency quirk for Ricoh 1180:e823
commit
3e309cdf07c930f29a4e0f233e47d399bea34c68 upstream.
Commit
15bed0f2f added a quirk for the e823 Ricoh card reader to lower the
base frequency. However, the quirk first checks to see if the proprietary
MMC controller is disabled, and returns if so. On some devices, such as the
Lenovo X220, the MMC controller is already disabled by firmware it seems,
but the frequency change is still needed so sdhci-pci can talk to the cards.
Since the MMC controller is disabled, the frequency fixup was never being run
on these machines.
This moves the e823 check above the MMC controller check so that it always
gets run.
This fixes https://bugzilla.redhat.com/show_bug.cgi?id=722509
Signed-off-by: Josh Boyer <jwboyer@redhat.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Andrei Warkentin [Sat, 24 Sep 2011 16:12:30 +0000 (12:12 -0400)]
mmc: core: ext_csd.raw_* used in comparison but never set
commit
5238acbe36dd5100fb6b035a995ae5fc89dd0708 upstream.
f39b2dd9d ("mmc: core: Bus width testing needs to handle suspend/resume")
added code to only compare read-only ext_csd fields in bus width testing
code, yet it's comparing some fields that are never set.
The affected fields are ext_csd.raw_erased_mem_count and
ext_csd.raw_partition_support.
Signed-off-by: Andrei Warkentin <andrey.warkentin@gmail.com>
Acked-by: Philip Rakity <prakity@marvell.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Ulf Hansson [Wed, 21 Sep 2011 18:08:13 +0000 (14:08 -0400)]
mmc: core: Fix hangs related to insert/remove of cards
commit
7f7e4129c23f0419257184dff6fec89d2d5a8964 upstream.
During a rescan operation mmc_attach(sd|mmc|sdio) functions are
called. The error handling in these function can trigger a detach
of the bus, which also meant a power off. This is not notified by
the rescan operation which then continues to the next attach function.
If a power off has been done, the framework must never send any
new commands to the host driver, without first doing a new power up.
This will most likely trigger any host driver to hang.
Moving power off out of detach and instead handle power off
separately when it is actually needed, solves the issue.
Signed-off-by: Ulf Hansson <ulf.hansson@stericsson.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Jean Delvare [Thu, 6 Oct 2011 16:16:24 +0000 (18:16 +0200)]
drm/radeon/kms: Fix I2C mask definitions
commit
286e0c94f9c3f292cb38a977fbbde3433347a868 upstream.
Commit
9b9fe724 accidentally used RADEON_GPIO_EN_* where
RADEON_GPIO_MASK_* was intended. This caused improper initialization
of I2C buses, mostly visible when setting i2c_algo_bit.bit_test=1.
Using the right constants fixes the problem.
Signed-off-by: Jean Delvare <jdelvare@suse.de>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Cc: Jerome Glisse <j.glisse@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Alex Deucher [Fri, 7 Oct 2011 18:23:48 +0000 (14:23 -0400)]
drm/radeon/kms: handle !force case in connector detect more gracefully
commit
d0d0a225e6ad43314c9aa7ea081f76adc5098ad4 upstream.
When force == false, we don't do load detection in the connector
detect functions. Unforunately, we also return the previous
connector state so we never get disconnect events for DVI-I, DVI-A,
or VGA. Save whether we detected the monitor via load detection
previously and use that to determine whether we return the previous
state or not.
Fixes:
https://bugs.freedesktop.org/show_bug.cgi?id=41561
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Alex Deucher [Fri, 7 Oct 2011 18:23:47 +0000 (14:23 -0400)]
drm/radeon/kms: bail early in dvi_detect for digital only connectors
commit
5f0a26128d66ef81613fe923d5c288942844ccdc upstream.
DVI-D and HDMI-A are digital only, so there's no need to
attempt analog load detect. Also, skip bail before the
!force check, or we fail to get a disconnect events.
The next patches in the series attempt to fix disconnect
events for connectors with analog support (DVI-I, HDMI-B,
DVI-A).
Fixes:
https://bugs.freedesktop.org/show_bug.cgi?id=41561
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>