Martin Michlmayr [Sun, 13 Jun 2010 19:00:16 +0000 (20:00 +0100)]
[ARM] Kirkwood: Add support for HP t5325 Thin Client
Add support for the HP t5325 Thin Client. This thin client is based
on a Marvell Kirkwood chip at 1.2 GHz and features 512 MB RAM, 512 MB
SATA-attached flash and an XGI Volari Z11 GPU.
Signed-off-by: Martin Michlmayr <tbm@cyrius.com> Signed-off-by: Nicolas Pitre <nico@fluxnic.net>
Martin Michlmayr [Sun, 13 Jun 2010 18:37:18 +0000 (19:37 +0100)]
[ARM] Kirkwood: Add MPP44 (board ID) on TS-219
MPP44 can be used to differentiate between one-bay (TS-11x) and
two-bay (TS-21x) devices.
According to an engineer from QNAP, the setting of MPP44 depends
on the firmware rather than hardware. Presumably, this means
that you could fake the MPP44 value by changing the boot loader.
Signed-off-by: Martin Michlmayr <tbm@cyrius.com> Signed-off-by: Nicolas Pitre <nico@fluxnic.net>
Martin Michlmayr [Fri, 26 Mar 2010 10:20:00 +0000 (11:20 +0100)]
[ARM] orion5x: Set links to solid on D-Link DNS-323
Among other changes, commit b2a731aa ("D-link DNS-323 revision A1 power
LED") changed the default behaviour of the power LED from solid to
blinking. This was done to match the original DNS-323 firmware which
blinks during the boot process and sets the LED to solid when booting
has completed. However, the downside of this behaviour is that it
requires userland code to change the LED, even for those who don't
care about the behaviour of the original firmware. Therefore, change
it to solid again and let those who care about the original behaviour
change the behaviour from userland.
Signed-off-by: Martin Michlmayr <tbm@cyrius.com> Signed-off-by: Nicolas Pitre <nico@fluxnic.net>
Martin Michlmayr [Sat, 22 May 2010 01:23:10 +0000 (02:23 +0100)]
[ARM] Kirkwood: Export GPIO indicating jumper setting of JP1
Export GPIO 45 which is used to indicate the setting of the JP1
jumper. This is useful for userland tools, such as qcontrol, to
see whether the LCD or a serial console is connected.
Signed-off-by: Martin Michlmayr <tbm@cyrius.com> Signed-off-by: Nicolas Pitre <nico@fluxnic.net>
Arnaud Patard [Wed, 12 May 2010 15:37:08 +0000 (17:37 +0200)]
[ARM] qnap tsx1x: fix section mismatch
Fix the following warning :
WARNING: vmlinux.o(.text+0x95a0): Section mismatch in reference from the
function qnap_tsx1x_register_flash() to the (unknown reference) .init.data:(unknown)
The function qnap_tsx1x_register_flash() references
the (unknown reference) __initdata (unknown).
This is often because qnap_tsx1x_register_flash lacks a __initdata
annotation or the annotation of (unknown) is wrong.
Signed-off-by: Arnaud Patard <arnaud.patard@rtp-net.org> Signed-off-by: Martin Michlmayr <tbm@cyrius.com> Signed-off-by: Nicolas Pitre <nico@fluxnic.net>
Merge branch 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
tracing: Add alignment to syscall metadata declarations
perf: Sync callchains with period based hits
perf: Resurrect flat callchains
perf: Version String fix, for fallback if not from git
perf: Version String fix, using kernel version
* git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6-fixes:
GFS2: rename causes kernel Oops
GFS2: BUG in gfs2_adjust_quota
GFS2: Fix kernel NULL pointer dereference by dlm_astd
GFS2: recovery stuck on transaction lock
GFS2: O_TRUNC not working on stuffed files across cluster
Bob Peterson [Wed, 14 Jul 2010 22:12:26 +0000 (18:12 -0400)]
GFS2: rename causes kernel Oops
This patch fixes a kernel Oops in the GFS2 rename code.
The problem was in the way the gfs2 directory code was trying
to re-use sentinel directory entries.
In the failing case, gfs2's rename function was renaming a
file to another name that had the same non-trivial length.
The file being renamed happened to be the first directory
entry on the leaf block.
First, the rename code (gfs2_rename in ops_inode.c) found the
original directory entry and decided it could do its job by
simply replacing the directory entry with another. Therefore
it determined correctly that no block allocations were needed.
Next, the rename code deleted the old directory entry prior to
replacing it with the new name. Therefore, the soon-to-be
replaced directory entry was temporarily made into a directory
entry "sentinel" or a place holder at the start of a leaf block.
Lastly, it went to re-add the replacement directory entry in
that leaf block. However, when gfs2_dirent_find_space was
looking for space in the leaf block, it used the wrong value
for the sentinel. That threw off its calculations so later
it decides it can't really re-use the sentinel and therefore
must allocate a new leaf block. But because it previously decided
to re-use the directory entry, it didn't waste the time to
grab a new block allocation for the inode. Therefore, the
inode's i_alloc pointer was still NULL and it crashes trying to
reference it.
In the case of sentinel directory entries, the entire dirent is
reused, not just the "free space" portion of it, and therefore
the function gfs2_dirent_find_space should use the value 0
rather than GFS2_DIRENT_SIZE(0) for the actual dirent size.
Fixing this calculation enables the reproducer programs to work
properly.
Signed-off-by: Bob Peterson <rpeterso@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
Abhijith Das [Sun, 4 Jul 2010 05:33:24 +0000 (01:33 -0400)]
GFS2: BUG in gfs2_adjust_quota
HighMem pages on i686 do not get mapped to the buffer_heads and this was
causing a NULL pointer dereference when we were trying to memset page buffers
to zero.
We now use zero_user() that kmaps the page and directly manipulates page data.
This patch also fixes a boundary condition that was incorrect.
Signed-off-by: Abhi Das <adas@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
Bob Peterson [Thu, 17 Jun 2010 20:45:37 +0000 (16:45 -0400)]
GFS2: Fix kernel NULL pointer dereference by dlm_astd
This patch fixes a problem in an error path when looking
up dinodes. There are two sister-functions, gfs2_inode_lookup
and gfs2_process_unlinked_inode. Both functions acquire and
hold the i_iopen glock for the dinode being looked up. The last
thing they try to do is hold the i_gl glock for the dinode.
If that glock fails for some reason, the error path was
incorrectly calling gfs2_glock_put for the i_iopen glock twice.
This resulted in the glock being prematurely freed. The
"minimum hold time" usually kept the glock in memory, but the
lock interface to dlm (aka lock_dlm) freed its memory for the
glock. In some circumstances, it would cause dlm's dlm_astd daemon
to try to call the bast function for the freed lock_dlm memory,
which resulted in a NULL pointer dereference.
Signed-off-by: Bob Peterson <rpeterso@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
Bob Peterson [Wed, 23 Jun 2010 15:44:47 +0000 (11:44 -0400)]
GFS2: recovery stuck on transaction lock
This patch fixes bugzilla bug #590878: GFS2: recovery stuck on
transaction lock. We set the frozen flag on the glock when we receive
a completion that cannot be delivered due to blocked locks. At that
point we check to see whether the first waiting holder has the noexp
flag set. If the noexp lock is queued later, then we need to unfreeze
the glock at that point in time, namely, in the glock work function.
This patch was originally written by Steve Whitehouse, but since
he's on holiday, I'm submitting it. It's been well tested with a
complex recovery test called revolver.
Signed-off-by: Steve Whitehouse <swhiteho@redhat.com> Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Bob Peterson [Thu, 24 Jun 2010 23:15:09 +0000 (19:15 -0400)]
GFS2: O_TRUNC not working on stuffed files across cluster
This patch replaces a statement that got dropped out by accident.
Without the patch, truncates on stuffed (very small) files cause
those files to have an unpredictable size.
Signed-off-by: Bob Peterson <rpeterso@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc:
powerpc/fsl-booke: Fix address issue when using relocatable kernels
powerpc/cpm1: Mark micropatch code/data static and __init
powerpc/cpm1: Fix build with various CONFIG_*_UCODE_PATCH combinations
powerpc/cpm: Reintroduce global spi_pram struct (fixes build issue)
Nicolas Pitre [Wed, 14 Jul 2010 04:21:22 +0000 (05:21 +0100)]
ARM: 6226/1: fix kprobe bug in ldr instruction emulation
From: Bin Yang <bin.yang@marvell.com>
Cc: stable@kernel.org Signed-off-by: Bin Yang <bin.yang@marvell.com> Signed-off-by: Nicolas Pitre <nicolas.pitre@linaro.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
The commit 83ba9ea8a04b72dfee2515428c15e7414ba4fc61 ommitted the return
line for the old synaptics model accidentally. This resulted in a wrong
check, namely, the dimensions are checked for the old devices that don't
support the query properly.
Merge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
input: i8042 - add runtime check in x86's i8042_platform_init
Revert "Input: fixup X86_MRST selects"
Revert "Input: do not force selecting i8042 on Moorestown"
x86, mrst: Add i8042_detect API for Moorestwon platform
x86: Add i8042 pre-detection hook to x86_platform_ops
x86, platform: Export x86_platform to modules
Acked-by: Nicolas Pitre <nico@fluxnic.net> Acked-by: Russell King <linux@arm.linux.org.uk> Acked-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Merge branch 'v4l_for_2.6.35' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6
* 'v4l_for_2.6.35' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6:
V4L/DVB: uvc: Fix multiple symbols definitions with UVC gadget and host drivers
V4L/DVB: v4l: mem2mem_testdev: fix g_fmt NULL pointer dereference
V4L/DVB: uvcvideo: Power line frequency control doesn't support GET_MIN/MAX/RES
V4L/DVB: ivtv: Add delay to ensure the decoder always restarts with a blank screen
V4L/DVB: Documentation: Add the Philips FQ1236 MK5 to video4linux/CARDLIST.tuner
V4L/DVB: tveeprom: Add an entry for tuner code 168: a TCL M30WTP-4N-E tuner
V4L/DVB: tuner: Add a definition for the Philips FQ1236 MK5 NTSC tuner
V4L/DVB: OMAP_VOUT: fix: Module params were not working through bootargs
V4L/DVB: OMAP_VOUT: fix: Replaced dma-sg with dma-contig
V4L/DVB: OMAP_VOUT:Build FIX: Rebased against latest DSS2 changes
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid:
HID: Send Report ID when numbered reports are sent over the control endpoint.
HID: Enable HID_QUIRK_MULTI_INPUT for Retro Adaptor
HID: add support for CH Eclipse yoke
HID: eliminate a double lock in debug code
HID: ntrig: add support for new firwmare versions
HID: check for HID_QUIRK_IGNORE during probing
HID: roccat: fix modules interdependencies
Alan Ott [Wed, 30 Jun 2010 13:50:36 +0000 (09:50 -0400)]
HID: Send Report ID when numbered reports are sent over the control endpoint.
The Report ID wasn't sent as part of the payload for reports which were sent
over the control endpoint. This is required by section 8.1 of the HID spec.
Signed-off-by: Alan Ott <alan@signal11.us> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
V4L/DVB: uvc: Fix multiple symbols definitions with UVC gadget and host drivers
The UVC gadget driver borrowed code from the UVC host driver without
changing the symbol names. This results in a namespace clash with
multiple definitions of several symbols when compiling both drivers in
the kernel.
Make all generic UVC functions and variables static in the UVC gadget
driver, as the symbols are not referenced outside of the gadget driver.
Rename the uvc_trace_param global variable to uvc_gadget_trace_param.
Merge branch 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging
* 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging:
hwmon: Fix autoloading of fschmd on recent Fujitsu machines
hwmon: (coretemp) Properly label the sensors
hwmon: (coretemp) Skip duplicate CPU entries
hwmon: (it87) Fix in7 on IT8720F
hwmon: (k8temp) Fix temperature reporting for ASB1 processor revisions
Merge branch 'i2c-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging
* 'i2c-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging:
i2c/mips: Fix error return codes from Sibyte i2c bus driver
i2c: Fix probability check
Peter Edwards [Sun, 11 Jul 2010 16:45:50 +0000 (17:45 +0100)]
HID: Enable HID_QUIRK_MULTI_INPUT for Retro Adaptor
Patch for linux-2.6.35-rc4 mainline kernel to enable Paul Qureshi's
Retro Adapter [http://keio.dk/retroadapter.html], an open source USB
device which allows controllers and joysticks from classic computers
and consoles to work on modern PCs, to appear as two separate devices
under Linux. Signed-off-by: Peter Edwards <samwise@bagshot-row.org> Acked-by: Paul Qureshi <retro@world3.net> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
powerpc/fsl-booke: Fix address issue when using relocatable kernels
When booting a relocatable kernel it needs to jump to the correct
start address, which for BookE parts is usually unchanged
regardless of the physical memory offset.
Recent changes cause problems with how we calculate the start
address, it was always adding the RMO into the start address
which is incorrect. This patch only adds in the RMO offset
if we are in the kexec code path, as it needs the RMO to work
correctly.
Instead of adding the RMO offset in in the common code path, we
can just set r6 to the RMO offset in the kexec code path instead
of to zero, and finally perform the masking in the common code
path
Signed-off-by: Matthew McClintock <msm@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Anton Vorontsov [Thu, 8 Jul 2010 17:16:16 +0000 (21:16 +0400)]
powerpc/cpm1: Mark micropatch code/data static and __init
This saves runtime memory and fixes lots of sparse warnings like this:
CHECK arch/powerpc/sysdev/micropatch.c
arch/powerpc/sysdev/micropatch.c:27:6: warning: symbol 'patch_2000'
was not declared. Should it be static?
arch/powerpc/sysdev/micropatch.c:146:6: warning: symbol 'patch_2f00'
was not declared. Should it be static?
...
Signed-off-by: Anton Vorontsov <avorontsov@mvista.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Anton Vorontsov [Thu, 8 Jul 2010 17:16:14 +0000 (21:16 +0400)]
powerpc/cpm1: Fix build with various CONFIG_*_UCODE_PATCH combinations
Warnings are treated as errors for arch/powerpc code, so build fails
with CONFIG_I2C_SPI_UCODE_PATCH=y:
CC arch/powerpc/sysdev/micropatch.o
cc1: warnings being treated as errors
arch/powerpc/sysdev/micropatch.c: In function 'cpm_load_patch':
arch/powerpc/sysdev/micropatch.c:630: warning: unused variable 'smp'
make[1]: *** [arch/powerpc/sysdev/micropatch.o] Error 1
And with CONFIG_USB_SOF_UCODE_PATCH=y:
CC arch/powerpc/sysdev/micropatch.o
cc1: warnings being treated as errors
arch/powerpc/sysdev/micropatch.c: In function 'cpm_load_patch':
arch/powerpc/sysdev/micropatch.c:629: warning: unused variable 'spp'
arch/powerpc/sysdev/micropatch.c:628: warning: unused variable 'iip'
make[1]: *** [arch/powerpc/sysdev/micropatch.o] Error 1
This patch fixes these issues by introducing proper #ifdefs.
Cc: <stable@kernel.org> [ .33, .34 ] Signed-off-by: Anton Vorontsov <avorontsov@mvista.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Anton Vorontsov [Thu, 8 Jul 2010 17:16:10 +0000 (21:16 +0400)]
powerpc/cpm: Reintroduce global spi_pram struct (fixes build issue)
spi_t was removed in commit 644b2a680ccc51a9ec4d6beb12e9d47d2dee98e2
("powerpc/cpm: Remove SPI defines and spi structs"), the commit assumed
that spi_t isn't used anywhere outside of the spi_mpc8xxx driver. But
it appears that the struct is needed for micropatch code. So, let's
reintroduce the struct.
Fixes the following build issue:
CC arch/powerpc/sysdev/micropatch.o
micropatch.c: In function 'cpm_load_patch':
micropatch.c:629: error: expected '=', ',', ';', 'asm' or '__attribute__' before '*' token
micropatch.c:629: error: 'spp' undeclared (first use in this function)
micropatch.c:629: error: (Each undeclared identifier is reported only once
micropatch.c:629: error: for each function it appears in.)
Reported-by: LEROY Christophe <christophe.leroy@c-s.fr> Reported-by: Tony Breeds <tony@bakeyournoodle.com> Cc: <stable@kernel.org> [ .33, .34 ] Signed-off-by: Anton Vorontsov <avorontsov@mvista.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Russell King [Sat, 10 Jul 2010 09:10:18 +0000 (10:10 +0100)]
ARM: lockdep: fix unannotated irqs-on
CPU: Testing write buffer coherency: ok
------------[ cut here ]------------
WARNING: at kernel/lockdep.c:3145 check_flags+0xcc/0x1dc()
Modules linked in:
[<c0035120>] (unwind_backtrace+0x0/0xf8) from [<c0355374>] (dump_stack+0x20/0x24)
[<c0355374>] (dump_stack+0x20/0x24) from [<c0060c04>] (warn_slowpath_common+0x58/0x70)
[<c0060c04>] (warn_slowpath_common+0x58/0x70) from [<c0060c3c>] (warn_slowpath_null+0x20/0x24)
[<c0060c3c>] (warn_slowpath_null+0x20/0x24) from [<c008f224>] (check_flags+0xcc/0x1dc)
[<c008f224>] (check_flags+0xcc/0x1dc) from [<c00945dc>] (lock_acquire+0x50/0x140)
[<c00945dc>] (lock_acquire+0x50/0x140) from [<c0358434>] (_raw_spin_lock+0x50/0x88)
[<c0358434>] (_raw_spin_lock+0x50/0x88) from [<c00fd114>] (set_task_comm+0x2c/0x60)
[<c00fd114>] (set_task_comm+0x2c/0x60) from [<c007e184>] (kthreadd+0x30/0x108)
[<c007e184>] (kthreadd+0x30/0x108) from [<c0030104>] (kernel_thread_exit+0x0/0x8)
---[ end trace 1b75b31a2719ed1c ]---
possible reason: unannotated irqs-on.
irq event stamp: 3
hardirqs last enabled at (2): [<c0059bb0>] finish_task_switch+0x48/0xb0
hardirqs last disabled at (3): [<c002f0b0>] ret_slow_syscall+0xc/0x1c
softirqs last enabled at (0): [<c005f3e0>] copy_process+0x394/0xe5c
softirqs last disabled at (0): [<(null)>] (null)
Fix this by ensuring that the lockdep interrupt state is manipulated in
the appropriate places. We essentially treat userspace as an entirely
separate environment which isn't relevant to lockdep (lockdep doesn't
monitor userspace.) We don't tell lockdep that IRQs will be enabled
in that environment.
Instead, when creating kernel threads (which is a rare event compared
to entering/leaving userspace) we have to update the lockdep state. Do
this by starting threads with IRQs disabled, and in the kthread helper,
tell lockdep that IRQs are enabled, and enable them.
This provides lockdep with a consistent view of the current IRQ state
in kernel space.
Steven Rostedt [Fri, 9 Jul 2010 19:41:44 +0000 (15:41 -0400)]
tracing: Add alignment to syscall metadata declarations
For some reason if we declare a static variable and then assign it
later, and the assignment contains a __attribute__((__aligned__(#))),
some versions of gcc will ignore it.
This caused the syscall meta data to not be compact in its section
and caused a kernel oops when the section was being read.
The fix for these versions of gcc seems to be to add the aligned
attribute to the declaration as well.
Jean Delvare [Fri, 9 Jul 2010 14:22:51 +0000 (16:22 +0200)]
hwmon: Fix autoloading of fschmd on recent Fujitsu machines
Fujitsu slightly changed the DMI strings in their recent machines,
(for example the D2778) and this breaks the automatic loading of the
needed fschmd driver. Being more tolerant on string comparison fixes
the issue.
This closes bug #15634:
https://bugzilla.kernel.org/show_bug.cgi?id=15634
Signed-off-by: Jean Delvare <khali@linux-fr.org> Tested-by: Sergey Spiridonov <sena@hurd.homeunix.org> Cc: Hans de Goede <hdegoede@redhat.com>
Jean Delvare [Fri, 9 Jul 2010 14:22:48 +0000 (16:22 +0200)]
hwmon: (it87) Fix in7 on IT8720F
The IT8720F has no VIN7 pin, so VCCH should always be routed
internally to VIN7 with an internal divider. Curiously, there still
is a configuration bit to control this, which means it can be set
incorrectly. And even more curiously, many boards out there are
improperly configured, even though the IT8720F datasheet claims that
the internal routing of VCCH to VIN7 is the default setting. So we
force the internal routing in this case.
It turns out that all boards with the wrong setting are from Gigabyte,
so I suspect a BIOS bug. But it's easy enough to workaround in the
driver, so let's do it.
Signed-off-by: Jean Delvare <khali@linux-fr.org> Cc: Jean-Marc Spaggiari <jean-marc@spaggiari.org> Cc: stable@kernel.org
hwmon: (k8temp) Fix temperature reporting for ASB1 processor revisions
Reported temperature for ASB1 CPUs is too high.
Add ASB1 CPU revisions (these are also non-desktop variants) to the
list of CPUs for which the temperature fixup is not required.
Example: (from LENOVO ThinkPad Edge 13, 01972NG, system was idle)
Current kernel reports
$ sensors
k8temp-pci-00c3
Adapter: PCI adapter
Core0 Temp: +74.0 C
Core0 Temp: +70.0 C
Core1 Temp: +69.0 C
Core1 Temp: +70.0 C
With this patch I have
$ sensors
k8temp-pci-00c3
Adapter: PCI adapter
Core0 Temp: +54.0 C
Core0 Temp: +51.0 C
Core1 Temp: +48.0 C
Core1 Temp: +49.0 C
Cc: stable@kernel.org [.32.x .33.x, .34.x] Cc: Rudolf Marek <r.marek@assembler.cz> Signed-off-by: Andreas Herrmann <andreas.herrmann3@amd.com> Signed-off-by: Jean Delvare <khali@linux-fr.org>
Will Deacon [Thu, 8 Jul 2010 09:59:16 +0000 (10:59 +0100)]
ARM: 6212/1: atomic ops: add memory constraints to inline asm
Currently, the 32-bit and 64-bit atomic operations on ARM do not
include memory constraints in the inline assembly blocks. In the
case of barrier-less operations [for example, atomic_add], this
means that the compiler may constant fold values which have actually
been modified by a call to an atomic operation.
This issue can be observed in the atomic64_test routine in
<kernel root>/lib/atomic64_test.c:
The atomic64_set (0x38-0x44) writes to the atomic64_t, but the
compiler doesn't see this, assumes the test condition is always
false and generates an unconditional branch to __bug. The rest of the
test is optimised away.
This patch adds suitable memory constraints to the atomic operations on ARM
to ensure that the compiler is informed of the correct data hazards. We have
to use the "Qo" constraints to avoid hitting the GCC anomaly described at
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44492 , where the compiler
makes assumptions about the writeback in the addressing mode used by the
inline assembly. These constraints forbid the use of auto{inc,dec} addressing
modes, so it doesn't matter if we don't use the operand exactly once.
Cc: stable@kernel.org Reviewed-by: Nicolas Pitre <nicolas.pitre@linaro.org> Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Will Deacon [Thu, 8 Jul 2010 09:58:06 +0000 (10:58 +0100)]
ARM: 6211/1: atomic ops: fix register constraints for atomic64_add_unless
The atomic64_add_unless function compares an atomic variable with
a given value and, if they are not equal, adds another given value
to the atomic variable. The function returns zero if the addition
did not occur and non-zero otherwise.
On ARM, the return value is initialised to 1 in C code. Inline assembly
code then performs the atomic64_add_unless operation, setting the
return value to 0 iff the addition does not occur. This means that
when the addition *does* occur, the value of ret must be preserved
across the inline assembly and therefore requires a "+r" constraint
rather than the current one of "=&r".
Thanks to Nicolas Pitre for helping to spot this.
Cc: stable@kernel.org Reviewed-by: Nicolas Pitre <nicolas.pitre@linaro.org> Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
ARM: 6210/1: Do not rely on reset defaults of L2X0_AUX_CTRL
On i.MX35 the L2X0_AUX_CTRL register does not have sensible reset
default values. Allow them to be overwritten with the aux_val/aux_mask
arguments passed to l2x0_init().
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
ALSA: hda - Restore cleared pin controls on resume
Many codecs now clear the pin controls at suspend via snd_hda_shutup_pins()
for reducing the click noise at power-off. But this leaves some pins
uninitialized, and they'll be never recovered after resume.
This patch adds the proper recovery of cleared pin controls on resume.
Also it adds a check of bus->shutdown so that pins won't be cleared at
module unloading.
Ben Hutchings [Thu, 1 Jul 2010 20:37:20 +0000 (20:37 +0000)]
IB/qib: Use request_firmware() to load SD7220 firmware
Extract the microcode for the QLogic QLE7220 series IB HCA and use the
kernel microcode request facility to load the microcode. This
supports Debian Linux's requirements to separate microcode which
doesn't have open source code available from the device driver.
Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Signed-off-by: Roland Dreier <rolandd@cisco.com>
V4L/DVB: uvcvideo: Power line frequency control doesn't support GET_MIN/MAX/RES
Issuing a GET_MIN request on the power line frequency control times out
on at least the Apple iSight. As the UVC specification doesn't list
GET_MIN/MAX/RES as supported on that control, remove them from the
uvc_ctrls array.
Andy Walls [Sat, 12 Jun 2010 23:24:24 +0000 (20:24 -0300)]
V4L/DVB: tveeprom: Add an entry for tuner code 168: a TCL M30WTP-4N-E tuner
Hauppauge EEPROM tuner code 168 has recently shown up on HVR-1600 TV
capture cards supported by the cx18 driver. This change allows analog
tuner type autodetection to succeed for these cards.
Information for decoding tuner code 168 was provided by Hauppauge.
Signed-off-by: Andy Walls <awalls@md.metrocast.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Vaibhav Hiremath [Thu, 27 May 2010 11:17:07 +0000 (08:17 -0300)]
V4L/DVB: OMAP_VOUT:Build FIX: Rebased against latest DSS2 changes
Changes -
- Kconfig option dependancy changed to ARCH_OMAP2/3 from
ARCH_OMAP24XX/34XX
- There are some moments of function from omap_dss_device
to omap_dss_driver. Incorporated changes for the same.
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband:
IPoIB: Fix world-writable child interface control sysfs attributes
IB/qib: Clean up properly if qib_init() fails
IB/qib: Completion queue callback needs to be single threaded
IB/qib: Update 7322 serdes tables
IB/qib: Clear 6120 hardware error register
IB/qib: Clear eager buffer memory for each new process
IB/qib: Mask hardware error during link reset
IB/qib: Don't mark VL15 bufs as WC to avoid a rare 7322 chip problem
RDMA/cxgb4: Derive smac_idx from port viid
RDMA/cxgb4: Avoid false GTS CIDX_INC overflows
RDMA/cxgb4: Don't call abort_connection() for active connect failures
RDMA/cxgb4: Use the DMA state API instead of the pci equivalents
Merge branch 'for-linus' of git://git.kernel.dk/linux-2.6-block
* 'for-linus' of git://git.kernel.dk/linux-2.6-block:
writeback: simplify the write back thread queue
writeback: split writeback_inodes_wb
writeback: remove writeback_inodes_wbc
fs-writeback: fix kernel-doc warnings
splice: check f_mode for seekable file
splice: direct_splice_actor() should not use pos in sd
Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc:
powerpc: Fix userspace build of ptrace.h
powerpc: Fix default_machine_crash_shutdown #ifdef botch
powerpc: Fix logic error in fixup_irqs
powerpc/iseries: Fix possible null pointer dereference in iSeries_pcibios_fixup_resources
powerpc: Linux cannot run with 0 cores
powerpc: Fix feature-fixup tests for gcc 4.5
powerpc: Disable SPARSE_IRQ by default
powerpc: Fix compile errors in prom_init_check for gcc 4.5
powerpc: Fix module building for gcc 4.5 and 64 bit
powerpc/perf_event: Fix for power_pmu_disable()
Sam Ravnborg [Sun, 9 May 2010 06:52:31 +0000 (08:52 +0200)]
powerpc: Fix userspace build of ptrace.h
Build of ptrace.h failed for assembly because it
pulls in stdint.h.
Use exportable types (__u32, __u64) to avoid the dependency
on stdint.h.
Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Andrey Volkov <avolkov@varma-el.com> Cc: Dave Kleikamp <shaggy@linux.vnet.ibm.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: Dave Kleikamp <shaggy@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
crash_kexec_wait_realmode() is defined only if CONFIG_PPC_STD_MMU_64
and CONFIG_SMP, but is called if CONFIG_PPC_STD_MMU_64 even if !CONFIG_SMP.
Fix the conditional compilation around the invocation.
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Acked-by: Michael Neuling <mikey@neuling.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Johannes Berg [Wed, 16 Jun 2010 00:09:35 +0000 (00:09 +0000)]
powerpc: Fix logic error in fixup_irqs
When SPARSE_IRQ is set, irq_to_desc() can
return NULL. While the code here has a
check for NULL, it's not really correct.
Fix it by separating the check for it.
This fixes CPU hot unplug for me.
Reported-by: Alastair Bridgewater <alastair.bridgewater@gmail.com> Cc: stable@kernel.org [2.6.32+] Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Denis Kirjanov [Wed, 16 Jun 2010 05:16:59 +0000 (05:16 +0000)]
powerpc/iseries: Fix possible null pointer dereference in iSeries_pcibios_fixup_resources
I don't know if this is a right fix for the problem
since of_get_property can return NULL.
Since iseries_device_information is used only for informational purpose,
we can skip this function without valid HvSubBusNumber number.
Signed-off-by: Denis Kirjanov <dkirjanov@kernel.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Anton Blanchard [Thu, 17 Jun 2010 14:33:06 +0000 (14:33 +0000)]
powerpc: Linux cannot run with 0 cores
If we configure with CONFIG_SMP=n or set NR_CPUS less than the number of
SMT threads we will set the max cores property to 0 in the
ibm,client-architecture-support structure. On new versions of firmware that
understand this property it obliges and terminates our partition.
Use DIV_ROUND_UP so we handle not only the CONFIG_SMP=n case but also the
case where NR_CPUS isn't a multiple of the number of SMT threads.
Signed-off-by: Anton Blanchard <anton@samba.org> Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Stephen Rothwell [Mon, 28 Jun 2010 21:08:29 +0000 (21:08 +0000)]
powerpc: Fix feature-fixup tests for gcc 4.5
The feature-fixup test declare some extern void variables and then take
their addresses. Fix this by declaring them as extern u8 instead.
Fixes these warnings (treated as errors):
CC arch/powerpc/lib/feature-fixups.o
cc1: warnings being treated as errors
arch/powerpc/lib/feature-fixups.c: In function 'test_cpu_macros':
arch/powerpc/lib/feature-fixups.c:293:23: error: taking address of expression of type 'void'
arch/powerpc/lib/feature-fixups.c:294:9: error: taking address of expression of type 'void'
arch/powerpc/lib/feature-fixups.c:297:2: error: taking address of expression of type 'void'
arch/powerpc/lib/feature-fixups.c:297:2: error: taking address of expression of type 'void'
arch/powerpc/lib/feature-fixups.c: In function 'test_fw_macros':
arch/powerpc/lib/feature-fixups.c:306:23: error: taking address of expression of type 'void'
arch/powerpc/lib/feature-fixups.c:307:9: error: taking address of expression of type 'void'
arch/powerpc/lib/feature-fixups.c:310:2: error: taking address of expression of type 'void'
arch/powerpc/lib/feature-fixups.c:310:2: error: taking address of expression of type 'void'
arch/powerpc/lib/feature-fixups.c: In function 'test_lwsync_macros':
arch/powerpc/lib/feature-fixups.c:321:23: error: taking address of expression of type 'void'
arch/powerpc/lib/feature-fixups.c:322:9: error: taking address of expression of type 'void'
arch/powerpc/lib/feature-fixups.c:326:3: error: taking address of expression of type 'void'
arch/powerpc/lib/feature-fixups.c:326:3: error: taking address of expression of type 'void'
arch/powerpc/lib/feature-fixups.c:329:3: error: taking address of expression of type 'void'
arch/powerpc/lib/feature-fixups.c:329:3: error: taking address of expression of type 'void'
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Yang Li [Mon, 28 Jun 2010 23:32:57 +0000 (23:32 +0000)]
powerpc: Disable SPARSE_IRQ by default
The SPARSE_IRQ considerably adds overhead to critical path of IRQ
handling. However it doesn't benefit much in space for most systems with
limited IRQ_NR. Should be disabled unless really necessary.
Signed-off-by: Li Yang <leoli@freescale.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Stephen Rothwell [Tue, 29 Jun 2010 20:04:22 +0000 (20:04 +0000)]
powerpc: Fix compile errors in prom_init_check for gcc 4.5
Just whitelist these extra compiler generated symbols.
Fixes these errors:
Error: External symbol '_restgpr0_14' referenced from prom_init.c
Error: External symbol '_restgpr0_20' referenced from prom_init.c
Error: External symbol '_restgpr0_22' referenced from prom_init.c
Error: External symbol '_restgpr0_24' referenced from prom_init.c
Error: External symbol '_restgpr0_25' referenced from prom_init.c
Error: External symbol '_restgpr0_26' referenced from prom_init.c
Error: External symbol '_restgpr0_27' referenced from prom_init.c
Error: External symbol '_restgpr0_28' referenced from prom_init.c
Error: External symbol '_restgpr0_29' referenced from prom_init.c
Error: External symbol '_restgpr0_31' referenced from prom_init.c
Error: External symbol '_savegpr0_14' referenced from prom_init.c
Error: External symbol '_savegpr0_20' referenced from prom_init.c
Error: External symbol '_savegpr0_22' referenced from prom_init.c
Error: External symbol '_savegpr0_24' referenced from prom_init.c
Error: External symbol '_savegpr0_25' referenced from prom_init.c
Error: External symbol '_savegpr0_26' referenced from prom_init.c
Error: External symbol '_savegpr0_27' referenced from prom_init.c
Error: External symbol '_savegpr0_28' referenced from prom_init.c
Error: External symbol '_savegpr0_29' referenced from prom_init.c
Error: External symbol '_savegpr0_31' referenced from prom_init.c
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Acked-by: Segher Boessenkool <segher@kernel.crashing.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Matt Evans [Mon, 5 Jul 2010 17:36:32 +0000 (17:36 +0000)]
powerpc/perf_event: Fix for power_pmu_disable()
When power_pmu_disable() removes the given event from a particular index into
cpuhw->event[], it shuffles down higher event[] entries. But, this array is
paired with cpuhw->events[] and cpuhw->flags[] so should shuffle them
similarly.
If these arrays get out of sync, code such as power_check_constraints() will
fail. This caused a bug where events were temporarily disabled and then failed
to be re-enabled; subsequent code tried to write_pmc() with its (disabled) idx
of 0, causing a message "oops trying to write PMC0". This triggers this bug on
POWER7, running a miss-heavy test:
perf record -e L1-dcache-load-misses -e L1-dcache-store-misses ./misstest
Signed-off-by: Matt Evans <matt@ozlabs.org> Acked-by: Paul Mackerras <paulus@samba.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Hists have their hits increased by the event period. And this
period based counting is the foundation of all the stats in
perf report.
But callchains still use the raw number of hits, without taking
the period into account. So when we compute the percentage,
absolute based percentages are totally broken, and relative ones
too in the first parent level. Because we pass the number of events
muliplied by their period as the total number of hits to the
callchain filtering, while callchains expect this number to be
the number of raw hits.
perf report -g graph was simply not working, showing no graph unless
the min percent was zero. And even there the percentage of the
branches was always 0. And may be fractal filtering was broken on
the first branch level too.
flat also was broken, but it was hidden because of other breakages.
Anyway fix this by counting using periods on callchains.
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Paul Mackerras <paulus@samba.org>
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (35 commits)
NET: SB1250: Initialize .owner
vxge: show startup message with KERN_INFO
ll_temac: Fix missing iounmaps
bridge: Clear IPCB before possible entry into IP stack
bridge br_multicast: BUG: unable to handle kernel NULL pointer dereference
net: Fix definition of netif_vdbg() when VERBOSE_DEBUG is defined
net/ne: fix memory leak in ne_drv_probe()
xfrm: fix xfrm by MARK logic
virtio_net: fix oom handling on tx
virtio_net: do not reschedule rx refill forever
s2io: resolve statistics issues
linux/net.h: fix kernel-doc warnings
net: decreasing real_num_tx_queues needs to flush qdisc
sched: qdisc_reset_all_tx is calling qdisc_reset without qdisc_lock
qlge: fix a eeh handler to not add a pending timer
qlge: Replacing add_timer() to mod_timer()
usbnet: Set parent device early for netdev_printk()
net: Revert "rndis_host: Poll status channel before control channel"
netfilter: ip6t_REJECT: fix a dst leak in ipv6 REJECT
drivers: bluetooth: bluecard_cs.c: Fixed include error, changed to linux/io.h
...
After adding x86_platform's detection for i8042 controller, we
don't need the force dependency on !X86_MRST any more
Cc: Jacob Pan <jacob.jun.pan@linux.intel.com> Signed-off-by: Feng Tang <feng.tang@intel.com>
LKML-Reference: <1278342202-10973-4-git-send-email-feng.tang@intel.com> Acked-by: Dmitry Torokhov <dtor@mail.ru> Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
x86: Add i8042 pre-detection hook to x86_platform_ops
Some x86 platforms like Intel MID platforms don't have i8042 controllers,
and i8042 driver's probe to some legacy IO ports may hang the MID
processor. With this hook, i8042 driver can runtime check and skip the
probe when the pretection fail which also saves some probe time
[ hpa note: this is currently a compile-time check, which breaks the
i386 allyesconfig build. This patch series thus does fix a regression. ]
Signed-off-by: Feng Tang <feng.tang@intel.com>
LKML-Reference: <1278342202-10973-2-git-send-email-feng.tang@intel.com> Acked-by: Dmitry Torokhov <dtor@mail.ru> Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
CC: Sreenivasa Honnur <Sreenivasa.Honnur@neterion.com> Signed-off-by: Wu Fengguang <fengguang.wu@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Herbert Xu [Mon, 5 Jul 2010 21:29:28 +0000 (21:29 +0000)]
bridge: Clear IPCB before possible entry into IP stack
The bridge protocol lives dangerously by having incestuous relations
with the IP stack. In this instance an abomination has been created
where a bogus IPCB area from a bridged packet leads to a crash in
the IP stack because it's interpreted as IP options.
This patch papers over the problem by clearing the IPCB area in that
particular spot. To fix this properly we'd also need to parse any
IP options if present but I'm way too lazy for that.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Cheers, Signed-off-by: David S. Miller <davem@davemloft.net>
Merge branch 'drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6
* 'drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6:
drm: correctly update connector DPMS status in drm_fb_helper
drm/radeon/kms: fix shared ddc handling
drm/ttm: Allocate the page pool manager in the heap.
drm: correctly update connector DPMS status in drm_fb_helper
We don't currently update the DPMS status of the connector (both in the
connector itself and the connector's DPMS property) in the fb helper
code. This means that if the kernel FB core has blanked the screen,
sysfs will still show a DPMS status of "on". It also means that when X
starts, it will try to light up the connectors, but the drm_crtc_helper
code will ignore the DPMS change since according to the connector, the
DPMS status is already on.
Fixes https://bugs.freedesktop.org/show_bug.cgi?id=28436 (the annoying
"my screen was blanked when I started X and now it won't light up" bug).
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Dave Airlie <airlied@redhat.com>
projects / linux-beck.git / log