Felipe Balbi [Tue, 27 Apr 2010 01:20:22 +0000 (18:20 -0700)]
cbus: don't type case when issuing read/write
avoid type casting, fix the types used.
Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Felipe Balbi [Tue, 27 Apr 2010 01:20:16 +0000 (18:20 -0700)]
cbus: add read/write flag to cbus_transfer
don't do magic tricks with the data to be written, it's simpler
to pass down a flag which will for sure tell us if we're reading
or writing.
Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Felipe Balbi [Tue, 27 Apr 2010 01:20:10 +0000 (18:20 -0700)]
cbus: no ternary on return
data is reset to 0 if is_read is true. No need
to use ternary operator before returning.
Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Felipe Balbi [Tue, 27 Apr 2010 01:20:02 +0000 (18:20 -0700)]
cbus: rely on gpiolib
don't define our own concurrent accesses to gpio banks
if we already have gpiolib to handle that.
Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Felipe Balbi [Tue, 27 Apr 2010 01:19:54 +0000 (18:19 -0700)]
cbus: don't export the global cbus_host variable
we can keep it static to cbus.c and refer to it when
calling cbus_transfer().
Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Felipe Balbi [Tue, 27 Apr 2010 01:19:47 +0000 (18:19 -0700)]
cbus: checkpatch.pl fix on cbus.c
make checkpatch.pl (almost) happy.
Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Felipe Balbi [Tue, 27 Apr 2010 01:19:41 +0000 (18:19 -0700)]
cbus: NULL global variable on exit
just to be sure, let's set it to NULL.
Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Felipe Balbi [Tue, 27 Apr 2010 01:19:35 +0000 (18:19 -0700)]
cbus: convert u32 base to void __iomem *base
to avoid casting later, pass the parameter of the
correct type already.
Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Alexander Shishkin [Wed, 21 Apr 2010 14:26:07 +0000 (14:26 +0000)]
cbus: fix comilation breakage
Just tried to build n8x0_defconfig on the current master and
got cbus failing to compile due to implicit kzalloc() (and
others from slab.h) references. I'm not sure that including
slab.h directly is the right thing to do here, though.
Signed-off-by: Alexander Shishkin <ash@koowaldah.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Francisco Alecrim [Tue, 3 Aug 2010 09:10:02 +0000 (12:10 +0300)]
n8x0_defconfig: active cbus, retu-wd and omap-wd
It's critical for correct n8x0 operation. Device turn power-off after some
seconds without these options.
Signed-off-by: Francisco Alecrim <alecrim@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Tony Lindgren [Tue, 3 Aug 2010 09:10:01 +0000 (12:10 +0300)]
cbus: Fix tahvo init without cbus
Basically don't even try to use it except on Nokia boards.
Signed-off-by: Tony Lindgren <tony@atomide.com>
Tony Lindgren [Tue, 3 Aug 2010 09:10:00 +0000 (12:10 +0300)]
cbus: Fix init on boards with no cbus
This really should get fixed by converting cbus to
use drivers/mfd.
Signed-off-by: Tony Lindgren <tony@atomide.com>
Tony Lindgren [Tue, 3 Aug 2010 09:10:00 +0000 (12:10 +0300)]
cbus: Fix compile if not selected
Fix compile if not selected
Signed-off-by: Tony Lindgren <tony@atomide.com>
Francisco Alecrim [Tue, 3 Aug 2010 09:10:00 +0000 (12:10 +0300)]
fix compile for tahvo-usb.c
drivers/cbus/tahvo-usb.c:138: undefined reference to 'usb_bus_start_enum'
usb_bus_start_enum only exported if USB_OTG enabled
Signed-off-by: Francisco Alecrim <francisco.alecrim@openbossa.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Felipe Balbi [Tue, 3 Aug 2010 09:09:59 +0000 (12:09 +0300)]
cbus: add platform_data to pass gpios
also add the platform_data to the related
board files.
Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Felipe Balbi [Tue, 3 Aug 2010 09:09:59 +0000 (12:09 +0300)]
cbus: move to platform_driver
also add the platform_device to 770 and n8x0 board files.
Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Felipe Balbi [Tue, 3 Aug 2010 09:09:56 +0000 (12:09 +0300)]
cbus: separate into several MODULE_AUTHOR entries
will look cleaner on modinfo.
Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Felipe Balbi [Tue, 3 Aug 2010 09:09:55 +0000 (12:09 +0300)]
cbus: move EXPORT_SYMBOL close to its exported symbols
while there, also add a missing static to cbus_bus_init().
Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Felipe Balbi [Tue, 3 Aug 2010 09:09:55 +0000 (12:09 +0300)]
cbus: switch to kzalloc
change kmalloc() + memset() to kzalloc(), no functional
changes.
Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Felipe Balbi [Tue, 3 Aug 2010 09:09:54 +0000 (12:09 +0300)]
cbus: tahvo-usb: make it build again
plenty of legacy code sitting there. Make it build
again. Later patches will come to clean that up.
Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Tony Lindgren [Tue, 3 Aug 2010 09:09:54 +0000 (12:09 +0300)]
cbus: Make retu watchdog behave like a standard Linux watchdog
Make retu watchdog behave like a standard Linux watchdog.
Let the kernel do the kicking until the watchdog device is opened.
Note: We should remove the old non-standard interface, please
change to use standard /dev/watchdog instead.
Signed-off-by: Tony Lindgren <tony@atomide.com>
Tony Lindgren [Tue, 3 Aug 2010 09:09:54 +0000 (12:09 +0300)]
cbus: Fix compile and don't try to use tag
Fix compile and don't try to use tag
This should be really passed as platform_data from
the board-*.c files.
Signed-off-by: Tony Lindgren <tony@atomide.com>
Tony Lindgren [Tue, 3 Aug 2010 09:09:53 +0000 (12:09 +0300)]
omap: Search and replace headers to use plat
Search and replace headers to use plat
Signed-off-by: Tony Lindgren <tony@atomide.com>
Juha Yrjola [Tue, 3 Aug 2010 09:09:53 +0000 (12:09 +0300)]
omap: Add drivers/cbus support
CBUS is the bus that Energy Management ASICs are connected to on
some Nokia mobile devices. Added support for CBUS and two EM ASIC
drivers.
This commit is a merge of all the commits that were in the linux-omap
tree:
aae6da6d5f09307b1feb391a47d1ddb6bf2d523e CBUS: Switch to gpio_request/free calls
702e65cebefe0af8ac4a648286f229947f3e1b68 cbus build fixes
f03fdeddbbaafb57f0f62629a316036f270a973d use gpio_to_irq (OMAP tree only)
570f10b7d3aaa3d542b749622df2a1f86e54ebc3 use gpio_direction_output (OMAP tree only)
d59842e6881e8f58cb17de5c0d11866796347d50 use gpio_direction_input (OMAP tree only)
7270f33b7b0139f40fcfbf771dc5ec5a773a71cd use standard gpio get/set calls (OMAP tree only)
f228a725b975832ac5771ab2fc86d06bd694cdb3 ARM: OMAP: Remove io_p2v, use ioremap and XXX_IO_ADDRESS
fdee8764947cde1e6933e7d981ce5b9de00e83e6 Merge current mainline tree into linux-omap tree
5061bcd119547453b32c847d2b9490a052bc1755 Merge mainline v2.6.27-rc2 tree into linux-omap tree
2d46b9c984d1c862f2525b4d0cabcb092f77ac64 CBUS: A workaround for ADC S/H HW bug: always keep ch 8 selected when S/H is used
648f41f57c2bfa7152f0760ca29a1e9dac566ca4 USB: Change omap USB code to use omap_read/write instead of __REG for multi-omap
d305c615bb7f85d49788a4ed28cb6aace2317ab7 ARM: OMAP: Misc compile fixes
bfbd53fcc738ff33ebcf91bc3ef25ae637cc4175 CBUS: Checkpatch.pl fixes for retu-wdt.c
2d28be5848928fbb17952e8eb5295fb506e0c40e CBUS: Fix retu mutex handling
7faa6dd4ae4db44f9c3142484266e17080314d79 CBUS: Fix retu-headset driver by not using removed input_dev->private field
8964c7d13133723ef2fe6a2b798a3fd336b15f4e ARM: OMAP: Add return value check for input_register_device()
2cf7bc8a039d6a6b4558c8c3a319ea15eccab60c CBUS: Fix retu-headset driver by not using removed input_dev->cdev field
97b705ad835f1481270c4b67b402d6e37fa8ad15 ARM: OMAP: Misc compile fixes after syncing with mainline
488de021a75771df95473c85bfaa9c8f1c9db659 tahvo-usb: compile fix usb/gadget.h
d079a1c74ea46f75cc406838c45652b97205e6be CBUS: Do not BUG_ON in retu-headset in case of spurious release event
074e3419440ba83e659be554f827e928826b512d CBUS: Fix reentrant issues in retu-headset driver
9afd4b705891e8afd505ecabec25539b22416d7a CBUS: Manage bias voltage in retu-headset suspend/resume code
0de1ae4b1cee28514dec435bf58c4b5960dfb4e1 CBUS: Cleanup retu-headset driver
dff99b718dffb5c041c99eebb3607f411d377f4d ARM: OMAP: Misc compile fixes after updating to current mainline tree
e0f2c271e0e3feaab8f8190b39876683099d3f6a ARM: OMAP: Fix inconsistency of completion in retu-rtc
6cda72c73944cc50250b3ae959174b6778d5e19f ARM: OMAP: Fix USB compilation for N770 defconfig
d041f80e997ff7c21b14fdee920a034e576aa226 CBUS: Add driver for Retu/Vilma headset detection
699d8412c1bf505f24d1a2048b49b8ffd8fe1d00 ARM: OMAP: Clean up bitrot to sync with mainline
ba9ca80b6468c5500a84a5c5e84383a6925a0bc3 ARM: OMAP: Convert driver interrupt flags SA_* to IRQF_*
7adeaaa4390dff8dcd4e44e6bcb144befcc2816f ARM: OMAP: Workqueue changes for retu-rtc
708739a058a59b76f72062bda81fb961e05d61e8 ARM: OMAP: Workqueue changes for tahvo-usb
995dda5fa21c77d337fa2fc07914ecb15cd08e54 ARM: OMAP: Fix warnings in N770 build
e2f0b012fd0fc16899dcdabc0b43fabdfdadcd8c ARM: OMAP: Fix broken N770 build (tahvo-usb)
d5c772f519236d8683b460e5da37f4a943ca4aae Fix some pt_regs users
229b59cdb41742aa4aee3628962af6ef2c4d944a Sync with mainline: Get rid of unnecessary pt_regs
b983452be56be4169233c34be1134e8030be674b Sync with mainline: Get rid of <#include linux/config.h>
77845293a4eb6cfea806ecc74ea9988c044a76bc CBUS: Retu: add atomic set and clear register bits function
d2db44bd92af99576cdf976f7dfc95f54884b14d CBUS: Tahvo: add atomic set and clear register bits function
e19cba0ecf9dd2d9adfdba175e335aebe973023a CBUS: Enable suspend wakeup for Retu IRQ
8c81aa40bea255769f13449dfb7699552ddb8438 Merge source.mvista.com:/home/git/linux-omap-2.6
1230366a669d16c7a292586adc7ab0725395f5b4 Manual merge to make things compile after updating to 2.6.18-rc4
6b411907432fe97bce3e6a253f6b98ab6c105efc CBUS: turn off tahvo-usb OTG idle mode during enabling
e3b2a7b6c6bcb4d6e839695fdac3e23b86046f98 CBUS: Make Retu RTC and Tahvo USB drivers use sysfs_notify
fe3702054f6412aea04373ceb9d27a4a417ff3f0 OMAP: Fix USB on Nokia 770
9c926661738080ee298bc3a51240dd102973fa61 [PATCH] ARM: OMAP: tahvo_user: sem2mutex conversion
ea90ef431139e4ac40b1d08726f45283f98d50ef [PATCH] ARM: OMAP: tahvo usb: sem2mutex conversion
06563a863d399ab6a3a5c104ddf086030f33b6f6 [PATCH] ARM: OMAP: retu-user: sem2mutex conversion
72a222f41989a4b8ad8cddf62c47608ad2e9e358 [PATCH] ARM: OMAP: retu-rtc: sem2mutex conversion
7508d984603f5ce3cb6883c229c97ed0a35d24c6 [PATCH] CBUS: Fix tahvo-usb omap_otg_remove
07f4f04763e2ff4333d44bec438d4bacbea0b4ae CBUS: Convert Retu power button driver to use input_allocate_device()
c604ff0bb1bbd3c6bf14bb9e5cae67c5a89e4ece cbus: Update tahvo-usb for kernel API changes.
f5c9432bb9bd44968cb785e3bb8aad95d6af3431 [PATCH] ARM: OMAP: gpio-switch and retu-rtc kobject_uevent() fixes
517df76f9295ac1865494476e8b531c65232dc5a ARM: OMAP: Replace clock.h with clk.h
93cb1e87df6ac03d315c0408634831e7db898a77 ARM: OMAP: Support for new Retu chips
480a299b3f3a5302f068fb7e3c68069ab3d355a5 ARM: OMAP: Support for 7-bit backlight register on new Tahvo chips
19deb6846965d9fdd5a87cae3593a953ccfea778 ARM: OMAP: Add CBUS support
Linus Torvalds [Sun, 1 Aug 2010 22:11:14 +0000 (15:11 -0700)]
Linux 2.6.35
Trond Myklebust [Sun, 1 Aug 2010 17:40:40 +0000 (13:40 -0400)]
NFS: Fix a typo in include/linux/nfs_fs.h
nfs_commit_inode() needs to be defined irrespectively of whether or not
we are supporting NFSv3 and NFSv4.
Allow the compiler to optimise away code in the NFSv2-only case by
converting it into an inlined stub function.
Reported-and-tested-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Sat, 31 Jul 2010 02:02:51 +0000 (19:02 -0700)]
Merge master.kernel.org:/home/rmk/linux-2.6-arm
* master.kernel.org:/home/rmk/linux-2.6-arm:
cyber2000fb: fix console in truecolor modes
cyber2000fb: fix machine hang on module load
SA1111: Eliminate use after free
ARM: Fix Versatile/Realview/VExpress MMC card detection sense
ARM: 6279/1: highmem: fix SMP preemption bug in kmap_high_l1_vipt
ARM: Add barriers to io{read,write}{8,16,32} accessors as well
ARM: 6273/1: Add barriers to the I/O accessors if ARM_DMA_MEM_BUFFERABLE
ARM: 6272/1: Convert L2x0 to use the IO relaxed operations
ARM: 6271/1: Introduce *_relaxed() I/O accessors
ARM: 6275/1: ux500: don't use writeb() in uncompress.h
ARM: 6270/1: clean files in arch/arm/boot/compressed/
ARM: Fix csum_partial_copy_from_user()
Linus Torvalds [Sat, 31 Jul 2010 02:02:21 +0000 (19:02 -0700)]
Merge branch 'bugfixes' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6
* 'bugfixes' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6:
NFS: Ensure that writepage respects the nonblock flag
NFS: kswapd must not block in nfs_release_page
nfs: include space for the NUL in root path
Linus Torvalds [Sat, 31 Jul 2010 02:01:11 +0000 (19:01 -0700)]
Merge branch 'drm-fixes' of git://git./linux/kernel/git/airlied/drm-2.6
* 'drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6:
drm/edid: Fix the HDTV hack sync adjustment
drm/radeon/kms: fix radeon mid power profile reporting
Hugh Dickins [Fri, 30 Jul 2010 17:58:26 +0000 (10:58 -0700)]
mm: fix ia64 crash when gcore reads gate area
Debian's ia64 autobuilders have been seeing kernel freeze or reboot
when running the gdb testsuite (Debian bug 588574): dannf bisected to
2.6.32
62eede62dafb4a6633eae7ffbeb34c60dba5e7b1 "mm: ZERO_PAGE without
PTE_SPECIAL"; and reproduced it with gdb's gcore on a simple target.
I'd missed updating the gate_vma handling in __get_user_pages(): that
happens to use vm_normal_page() (nowadays failing on the zero page),
yet reported success even when it failed to get a page - boom when
access_process_vm() tried to copy that to its intermediate buffer.
Fix this, resisting cleanups: in particular, leave it for now reporting
success when not asked to get any pages - very probably safe to change,
but let's not risk it without testing exposure.
Why did ia64 crash with 16kB pages, but succeed with 64kB pages?
Because setup_gate() pads each 64kB of its gate area with zero pages.
Reported-by: Andreas Barth <aba@not.so.argh.org>
Bisected-by: dann frazier <dannf@debian.org>
Signed-off-by: Hugh Dickins <hughd@google.com>
Tested-by: dann frazier <dannf@dannf.org>
Cc: stable@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
David Howells [Fri, 30 Jul 2010 14:25:19 +0000 (15:25 +0100)]
CIFS: Remove __exit mark from cifs_exit_dns_resolver()
Remove the __exit mark from cifs_exit_dns_resolver() as it's called by the
module init routine in case of error, and so may have been discarded during
linkage.
Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Ondrej Zary [Thu, 29 Jul 2010 20:40:54 +0000 (22:40 +0200)]
cyber2000fb: fix console in truecolor modes
Return value was not set to 0 in setcolreg() with truecolor modes. This causes
fb_set_cmap() to abort after first color, resulting in blank palette - and
blank console in 24bpp and 32bpp modes.
Signed-off-by: Ondrej Zary <linux@rainbow-software.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Ondrej Zary [Thu, 29 Jul 2010 20:32:20 +0000 (22:32 +0200)]
cyber2000fb: fix machine hang on module load
I was testing two CyberPro 2000 based PCI cards on x86 and the machine always
hanged completely when the cyber2000fb module was loaded. It seems that the
card hangs when some registers are accessed too quickly after writing RAMDAC
control register. With this patch, both card work.
Add delay after RAMDAC control register write to prevent hangs on module load.
Signed-off-by: Ondrej Zary <linux@rainbow-software.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Julia Lawall [Fri, 30 Jul 2010 15:17:28 +0000 (17:17 +0200)]
SA1111: Eliminate use after free
__sa1111_remove always frees its argument, so the subsequent reference to
sachip->saved_state represents a use after free. __sa1111_remove does not
appear to use the saved_state field, so the patch simply frees it first.
A simplified version of the semantic patch that finds this problem is as
follows: (http://coccinelle.lip6.fr/)
// <smpl>
@@
expression E,E2;
@@
__sa1111_remove(E)
...
(
E = E2
|
* E
)
// </smpl>
Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Russell King [Thu, 29 Jul 2010 14:58:59 +0000 (15:58 +0100)]
ARM: Fix Versatile/Realview/VExpress MMC card detection sense
The MMC card detection sense has become really confused with negations
at various levels, leading to some platforms not detecting inserted
cards. Fix this by converting everything to positive logic throughout,
thereby getting rid of these negations.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Gary King [Thu, 29 Jul 2010 16:37:20 +0000 (17:37 +0100)]
ARM: 6279/1: highmem: fix SMP preemption bug in kmap_high_l1_vipt
smp_processor_id() must not be called from a preemptible context (this
is checked by CONFIG_DEBUG_PREEMPT). kmap_high_l1_vipt() was doing so.
This lead to a problem where the wrong per_cpu kmap_high_l1_vipt_depth
could be incremented, causing a BUG_ON(*depth <= 0); in
kunmap_high_l1_vipt().
The solution is to move the call to smp_processor_id() after the call
to preempt_disable().
Originally by: Andrew Howe <ahowe@nvidia.com>
Signed-off-by: Gary King <gking@nvidia.com>
Acked-by: Nicolas Pitre <nico.as.pitre@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Trond Myklebust [Fri, 30 Jul 2010 19:31:57 +0000 (15:31 -0400)]
NFS: Ensure that writepage respects the nonblock flag
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Trond Myklebust [Fri, 30 Jul 2010 19:31:54 +0000 (15:31 -0400)]
NFS: kswapd must not block in nfs_release_page
See https://bugzilla.kernel.org/show_bug.cgi?id=16056
If other processes are blocked waiting for kswapd to free up some memory so
that they can make progress, then we cannot allow kswapd to block on those
processes.
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Cc: stable@kernel.org
Dan Carpenter [Tue, 13 Jul 2010 11:34:59 +0000 (13:34 +0200)]
nfs: include space for the NUL in root path
In root_nfs_name() it does the following:
if (strlen(buf) + strlen(cp) > NFS_MAXPATHLEN) {
printk(KERN_ERR "Root-NFS: Pathname for remote directory too long.\n");
return -1;
}
sprintf(nfs_export_path, buf, cp);
In the original code if (strlen(buf) + strlen(cp) == NFS_MAXPATHLEN)
then the sprintf() would lead to an overflow. Generally the rest of the
code assumes that the path can have NFS_MAXPATHLEN (1024) characters and
a NUL terminator so the fix is to add space to the nfs_export_path[]
buffer.
Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Linus Torvalds [Thu, 29 Jul 2010 22:23:28 +0000 (15:23 -0700)]
Merge branch 'for-linus' of git://git390.marist.edu/linux-2.6
* 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6:
[S390] etr: fix clock synchronization race
[S390] Fix IRQ tracing in case of PER
Linus Torvalds [Thu, 29 Jul 2010 22:21:44 +0000 (15:21 -0700)]
Merge git://git./linux/kernel/git/wim/linux-2.6-watchdog
* git://git.kernel.org/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog:
watchdog: update MAINTAINERS entry
Linus Torvalds [Thu, 29 Jul 2010 22:21:07 +0000 (15:21 -0700)]
Merge branch 'fix/hda' of git://git./linux/kernel/git/tiwai/sound-2.6
* 'fix/hda' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6:
ALSA: hda - Add a PC-beep workaround for ASUS P5-V
ALSA: hda - Assume PC-beep as default for Realtek
ALSA: hda - Don't register beep input device when no beep is available
ALSA: hda - Fix pin-detection of Nvidia HDMI
David Howells [Thu, 29 Jul 2010 11:45:55 +0000 (12:45 +0100)]
CRED: Fix __task_cred()'s lockdep check and banner comment
Fix __task_cred()'s lockdep check by removing the following validation
condition:
lockdep_tasklist_lock_is_held()
as commit_creds() does not take the tasklist_lock, and nor do most of the
functions that call it, so this check is pointless and it can prevent
detection of the RCU lock not being held if the tasklist_lock is held.
Instead, add the following validation condition:
task->exit_state >= 0
to permit the access if the target task is dead and therefore unable to change
its own credentials.
Fix __task_cred()'s comment to:
(1) discard the bit that says that the caller must prevent the target task
from being deleted. That shouldn't need saying.
(2) Add a comment indicating the result of __task_cred() should not be passed
directly to get_cred(), but rather than get_task_cred() should be used
instead.
Also put a note into the documentation to enforce this point there too.
Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
David Howells [Thu, 29 Jul 2010 11:45:49 +0000 (12:45 +0100)]
CRED: Fix get_task_cred() and task_state() to not resurrect dead credentials
It's possible for get_task_cred() as it currently stands to 'corrupt' a set of
credentials by incrementing their usage count after their replacement by the
task being accessed.
What happens is that get_task_cred() can race with commit_creds():
TASK_1 TASK_2 RCU_CLEANER
-->get_task_cred(TASK_2)
rcu_read_lock()
__cred = __task_cred(TASK_2)
-->commit_creds()
old_cred = TASK_2->real_cred
TASK_2->real_cred = ...
put_cred(old_cred)
call_rcu(old_cred)
[__cred->usage == 0]
get_cred(__cred)
[__cred->usage == 1]
rcu_read_unlock()
-->put_cred_rcu()
[__cred->usage == 1]
panic()
However, since a tasks credentials are generally not changed very often, we can
reasonably make use of a loop involving reading the creds pointer and using
atomic_inc_not_zero() to attempt to increment it if it hasn't already hit zero.
If successful, we can safely return the credentials in the knowledge that, even
if the task we're accessing has released them, they haven't gone to the RCU
cleanup code.
We then change task_state() in procfs to use get_task_cred() rather than
calling get_cred() on the result of __task_cred(), as that suffers from the
same problem.
Without this change, a BUG_ON in __put_cred() or in put_cred_rcu() can be
tripped when it is noticed that the usage count is not zero as it ought to be,
for example:
kernel BUG at kernel/cred.c:168!
invalid opcode: 0000 [#1] SMP
last sysfs file: /sys/kernel/mm/ksm/run
CPU 0
Pid: 2436, comm: master Not tainted 2.6.33.3-85.fc13.x86_64 #1 0HR330/OptiPlex
745
RIP: 0010:[<
ffffffff81069881>] [<
ffffffff81069881>] __put_cred+0xc/0x45
RSP: 0018:
ffff88019e7e9eb8 EFLAGS:
00010202
RAX:
0000000000000001 RBX:
ffff880161514480 RCX:
00000000ffffffff
RDX:
00000000ffffffff RSI:
ffff880140c690c0 RDI:
ffff880140c690c0
RBP:
ffff88019e7e9eb8 R08:
00000000000000d0 R09:
0000000000000000
R10:
0000000000000001 R11:
0000000000000040 R12:
ffff880140c690c0
R13:
ffff88019e77aea0 R14:
00007fff336b0a5c R15:
0000000000000001
FS:
00007f12f50d97c0(0000) GS:
ffff880007400000(0000) knlGS:
0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0:
0000000080050033
CR2:
00007f8f461bc000 CR3:
00000001b26ce000 CR4:
00000000000006f0
DR0:
0000000000000000 DR1:
0000000000000000 DR2:
0000000000000000
DR3:
0000000000000000 DR6:
00000000ffff0ff0 DR7:
0000000000000400
Process master (pid: 2436, threadinfo
ffff88019e7e8000, task
ffff88019e77aea0)
Stack:
ffff88019e7e9ec8 ffffffff810698cd ffff88019e7e9ef8 ffffffff81069b45
<0>
ffff880161514180 ffff880161514480 ffff880161514180 0000000000000000
<0>
ffff88019e7e9f28 ffffffff8106aace 0000000000000001 0000000000000246
Call Trace:
[<
ffffffff810698cd>] put_cred+0x13/0x15
[<
ffffffff81069b45>] commit_creds+0x16b/0x175
[<
ffffffff8106aace>] set_current_groups+0x47/0x4e
[<
ffffffff8106ac89>] sys_setgroups+0xf6/0x105
[<
ffffffff81009b02>] system_call_fastpath+0x16/0x1b
Code: 48 8d 71 ff e8 7e 4e 15 00 85 c0 78 0b 8b 75 ec 48 89 df e8 ef 4a 15 00
48 83 c4 18 5b c9 c3 55 8b 07 8b 07 48 89 e5 85 c0 74 04 <0f> 0b eb fe 65 48 8b
04 25 00 cc 00 00 48 3b b8 58 04 00 00 75
RIP [<
ffffffff81069881>] __put_cred+0xc/0x45
RSP <
ffff88019e7e9eb8>
---[ end trace
df391256a100ebdd ]---
Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Wim Van Sebroeck [Thu, 29 Jul 2010 18:02:51 +0000 (18:02 +0000)]
watchdog: update MAINTAINERS entry
Add Mailing-list and website to watchdog MAINTAINERS entry.
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Takashi Iwai [Thu, 29 Jul 2010 13:30:02 +0000 (15:30 +0200)]
ALSA: hda - Add a PC-beep workaround for ASUS P5-V
ASUS P5-V provides a SSID that unexpectedly matches with the value
compilant with Realtek's specification. Thus the driver interprets
it badly, resulting in non-working PC beep.
This patch adds a white-list for such a case; a white-list of known
devices with working PC beep.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Russell King [Thu, 29 Jul 2010 10:38:05 +0000 (11:38 +0100)]
ARM: Add barriers to io{read,write}{8,16,32} accessors as well
The ioread/iowrite accessors also need barriers as they're used in
place of readl/writel et.al. in portable drivers. Create __iormb()
and __iowmb() which are conditionally defined to be barriers dependent
on ARM_DMA_MEM_BUFFERABLE, and always use these macros in the accessors.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Catalin Marinas [Wed, 28 Jul 2010 21:01:55 +0000 (22:01 +0100)]
ARM: 6273/1: Add barriers to the I/O accessors if ARM_DMA_MEM_BUFFERABLE
When the coherent DMA buffers are mapped as Normal Non-cacheable
(ARM_DMA_MEM_BUFFERABLE enabled), buffer accesses are no longer ordered
with Device memory accesses causing failures in device drivers that do
not use the mandatory memory barriers before starting a DMA transfer.
LKML discussions led to the conclusion that such barriers have to be
added to the I/O accessors:
http://thread.gmane.org/gmane.linux.kernel/683509/focus=686153
http://thread.gmane.org/gmane.linux.ide/46414
http://thread.gmane.org/gmane.linux.kernel.cross-arch/5250
This patch introduces a wmb() barrier to the write*() I/O accessors to
handle the situations where Normal Non-cacheable writes are still in the
processor (or L2 cache controller) write buffer before a DMA transfer
command is issued. For the read*() accessors, a rmb() is introduced
after the I/O to avoid speculative loads where the driver polls for a
DMA transfer ready bit.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Catalin Marinas [Wed, 28 Jul 2010 21:01:25 +0000 (22:01 +0100)]
ARM: 6272/1: Convert L2x0 to use the IO relaxed operations
This patch is in preparation for a subsequent patch which adds barriers
to the I/O accessors. Since the mandatory barriers may do an L2 cache
sync, this patch avoids a recursive call into l2x0_cache_sync() via the
write*() accessors and wmb() and a call into l2x0_cache_sync() with the
l2x0_lock held.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Catalin Marinas [Wed, 28 Jul 2010 21:00:54 +0000 (22:00 +0100)]
ARM: 6271/1: Introduce *_relaxed() I/O accessors
This patch introduces readl*_relaxed()/write*_relaxed() as the main I/O
accessors (when __mem_pci is defined). The standard read*()/write*()
macros are now based on the relaxed accessors.
This patch is in preparation for a subsequent patch which adds barriers
to the I/O accessors.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Rabin Vincent [Thu, 29 Jul 2010 11:13:18 +0000 (12:13 +0100)]
ARM: 6275/1: ux500: don't use writeb() in uncompress.h
Don't use writeb() in uncompress.h, to avoid the following build errors
when the "Add barriers to the I/O accessors" series is applied. Use
__raw_writeb() instead.
arch/arm/boot/compressed/misc.o: In function `putc':
arch/arm/mach-ux500/include/mach/uncompress.h:41:
undefined reference to `outer_cache'
Acked-by: Linus Walleij <linus.walleij@stericsson.com>
Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Magnus Damm [Wed, 28 Jul 2010 04:46:21 +0000 (05:46 +0100)]
ARM: 6270/1: clean files in arch/arm/boot/compressed/
Update the compressed boot Makefile for ARM to
remove files during clean.
Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Adam Jackson [Tue, 27 Jul 2010 21:40:32 +0000 (07:40 +1000)]
drm/edid: Fix the HDTV hack sync adjustment
We're adjusting horizontal timings only here, moving vsync was just a
slavish translation of a typo in the X server.
Signed-off-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Daniel J Blueman [Wed, 28 Jul 2010 11:25:58 +0000 (12:25 +0100)]
drm/radeon/kms: fix radeon mid power profile reporting
Fix incorrectly reporting 'default' power profile, when it is set to 'mid'.
Signed-off-by: Daniel J Blueman <daniel.blueman@gmail.com>
Reviewed-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Linus Torvalds [Thu, 29 Jul 2010 03:01:26 +0000 (20:01 -0700)]
Merge branch 'for_linus' of git://git./linux/kernel/git/jwessel/linux-2.6-kgdb
* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jwessel/linux-2.6-kgdb:
x86,kgdb: Fix hw breakpoint regression
Linus Torvalds [Thu, 29 Jul 2010 03:00:42 +0000 (20:00 -0700)]
Merge git://git./linux/kernel/git/jejb/scsi-rc-fixes-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6:
[SCSI] ibmvscsi: Fix oops when an interrupt is pending during probe
[SCSI] zfcp: Update status read mempool
[SCSI] zfcp: Do not wait for SBALs on stopped queue
[SCSI] zfcp: Fix check whether unchained ct_els is possible
[SCSI] ipr: fix resource path display and formatting
Linus Torvalds [Thu, 29 Jul 2010 02:59:55 +0000 (19:59 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/lrg/voltage-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lrg/voltage-2.6:
davinci: da850/omap-l138 evm: account for DEFDCDC{2,3} being tied high
regulator: tps6507x: allow driver to use DEFDCDC{2,3}_HIGH register
wm8350-regulator: fix wm8350_register_regulator error handling
ab3100: fix off-by-one value range checking for voltage selector
Andre Osterhues [Tue, 13 Jul 2010 20:59:17 +0000 (15:59 -0500)]
ecryptfs: Bugfix for error related to ecryptfs_hash_buckets
The function ecryptfs_uid_hash wrongly assumes that the
second parameter to hash_long() is the number of hash
buckets instead of the number of hash bits.
This patch fixes that and renames the variable
ecryptfs_hash_buckets to ecryptfs_hash_bits to make it
clearer.
Fixes: CVE-2010-2492
Signed-off-by: Andre Osterhues <aosterhues@escrypt.com>
Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Jason Wessel [Thu, 29 Jul 2010 00:10:30 +0000 (19:10 -0500)]
x86,kgdb: Fix hw breakpoint regression
HW breakpoints events stopped working correctly with kgdb
as a result of commit:
018cbffe6819f6f8db20a0a3acd9bab9bfd667e4
(Merge commit 'v2.6.33' into perf/core).
The regression occurred because the behavior changed for setting
NOTIFY_STOP as the return value to the die notifier if the breakpoint
was known to the HW breakpoint API. Because kgdb is using the HW
breakpoint API to register HW breakpoints slots, it must also now
implement the overflow_handler call back else kgdb does not get to see
the events from the die notifier.
The kgdb_ll_trap function will be changed to be general purpose code
which can allow an easy way to implement the hw_breakpoint API
overflow call back.
Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
Acked-by: Dongdong Deng <dongdong.deng@windriver.com>
Acked-by: Frederic Weisbecker <fweisbec@gmail.com>
Linus Torvalds [Wed, 28 Jul 2010 18:10:53 +0000 (11:10 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/sage/ceph-client
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client:
ceph: use complete_all and wake_up_all
ceph: Correct obvious typo of Kconfig variable "CRYPTO_AES"
ceph: fix dentry lease release
ceph: fix leak of dentry in ceph_init_dentry() error path
ceph: fix pg_mapping leak on pg_temp updates
ceph: fix d_release dop for snapdir, snapped dentries
ceph: avoid dcache readdir for snapdir
Steven Whitehouse [Wed, 28 Jul 2010 16:56:23 +0000 (17:56 +0100)]
GFS2: Use kmalloc when possible for ->readdir()
If we don't need a huge amount of memory in ->readdir() then
we can use kmalloc rather than vmalloc to allocate it. This
should cut down on the greater overheads associated with
vmalloc for smaller directories.
We may be able to eliminate vmalloc entirely at some stage,
but this is easy to do right away.
Also using GFP_NOFS to avoid any issues wrt to deleting inodes
while under a glock, and suggestion from Linus to factor out
the alloc/dealloc.
I've given this a test with a variety of different sized
directories and it seems to work ok.
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Nick Piggin <npiggin@suse.de>
Cc: Prarit Bhargava <prarit@redhat.com>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Takashi Iwai [Wed, 28 Jul 2010 15:43:36 +0000 (17:43 +0200)]
ALSA: hda - Assume PC-beep as default for Realtek
Enable PC-beep as default for hardwares that aren't compliant with the
SSID value Realtek requires. In such a case, better to enable the beep
to avoid a regression.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Takashi Iwai [Wed, 28 Jul 2010 15:37:16 +0000 (17:37 +0200)]
ALSA: hda - Don't register beep input device when no beep is available
We check now the availability of PC beep and skip the build of beep
mixers, but the driver still registers the input device. This should
be checked as well.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Sekhar Nori [Mon, 12 Jul 2010 12:26:21 +0000 (17:56 +0530)]
davinci: da850/omap-l138 evm: account for DEFDCDC{2,3} being tied high
Per the da850/omap-l138 Beta EVM SOM schematic, the
DEFDCDC2 and
DEFDCDC3 lines are tied high. This leads to a 3.3V IO and 1.2V CVDD
voltage.
Pass the right platform data to the TPS6507x driver so it can operate
on the DEFDCDC{2,3}_HIGH register to read and change voltage levels.
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
Anuj Aggarwal [Mon, 12 Jul 2010 12:24:06 +0000 (17:54 +0530)]
regulator: tps6507x: allow driver to use DEFDCDC{2,3}_HIGH register
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
In TPS6507x, depending on the status of DEFDCDC{2,3} pin either
DEFDCDC{2,3}_LOW or DEFDCDC{2,3}_HIGH register needs to be read or
programmed to change the output voltage.
The current driver assumes DEFDCDC{2,3} pins are always tied low
and thus operates only on DEFDCDC{2,3}_LOW register. This need
not always be the case (as is found on OMAP-L138 EVM).
Unfortunately, software cannot read the status of DEFDCDC{2,3} pins.
So, this information is passed through platform data depending on
how the board is wired.
Signed-off-by: Anuj Aggarwal <anuj.aggarwal@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
Takashi Iwai [Wed, 28 Jul 2010 12:21:55 +0000 (14:21 +0200)]
ALSA: hda - Fix pin-detection of Nvidia HDMI
The behavior of Nvidia HDMI codec regarding the pin-detection unsol events
is based on the old HD-audio spec, i.e. PD bit indicates only the update
and doesn't show the current state. Since the current code assumes the
new behavior, the pin-detection doesn't work relialby with these h/w.
This patch adds a flag for indicating the old spec, and fixes the issue
by checking the pin-detection explicitly for such hardware.
Tested-by: Wei Ni <wni@nvidia.com>
Cc: <stable@kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Linus Torvalds [Tue, 27 Jul 2010 21:32:59 +0000 (14:32 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/ericvh/v9fs
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs:
9p: Pass the correct end of buffer to p9stat_read
Jon Povey [Tue, 27 Jul 2010 20:18:06 +0000 (13:18 -0700)]
gpio: fix spurious printk when freeing a gpio
When freeing a gpio that has not been exported, gpio_unexport() prints a
debug message when it should just fall through silently.
Example spurious message:
gpio_unexport: gpio0 status -22
Signed-off-by: Jon Povey <jon.povey@racelogic.co.uk>
Cc: David Brownell <david-b@pacbell.net>
Acked-by: Uwe Kleine-K?nig <u.kleine-koenig@pengutronix.de>
Cc: Gregory Bean <gbean@codeaurora.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Anton Vorontsov [Tue, 27 Jul 2010 20:18:05 +0000 (13:18 -0700)]
edac: mpc85xx: fix coldplug/hotplug module autoloading
The MPC85xx EDAC driver is missing module device aliases, so the driver
won't load automatically on boot. This patch fixes the issue by adding
proper MODULE_DEVICE_TABLE() macros.
Signed-off-by: Anton Vorontsov <avorontsov@mvista.com>
Cc: Doug Thompson <dougthompson@xmission.com>
Cc: Peter Tyser <ptyser@xes-inc.com>
Cc: Dave Jiang <djiang@mvista.com>
Cc: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Rudolf Marek [Tue, 27 Jul 2010 20:18:02 +0000 (13:18 -0700)]
drivers/rtc/rtc-rx8581.c: fix setdatetime
Fix the logic while writing new date/time to the chip. The driver
incorrectly wrote back register values to different registers and even
with wrong mask. The patch adds clearing of the VLF register, which
should be cleared if all date/time values are set.
Signed-off-by: Rudolf Marek <rudolf.marek@sysgo.com>
Acked-by: Wan ZongShun <mcuos.com@gmail.com>
Cc: Martyn Welch <martyn.welch@gefanuc.com>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Jason Baron [Tue, 27 Jul 2010 20:18:01 +0000 (13:18 -0700)]
dynamic debug: move ddebug_remove_module() down into free_module()
The command
echo "file ec.c +p" >/sys/kernel/debug/dynamic_debug/control
causes an oops.
Move the call to ddebug_remove_module() down into free_module(). In this
way it should be called from all error paths. Currently, we are missing
the remove if the module init routine fails.
Signed-off-by: Jason Baron <jbaron@redhat.com>
Reported-by: Thomas Renninger <trenn@suse.de>
Tested-by: Thomas Renninger <trenn@suse.de>
Cc: <stable@kernel.org> [2.6.32+]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Yehuda Sadeh [Tue, 27 Jul 2010 20:11:08 +0000 (13:11 -0700)]
ceph: use complete_all and wake_up_all
This fixes an issue triggered by running concurrent syncs. One of the syncs
would go through while the other would just hang indefinitely. In any case, we
never actually want to wake a single waiter, so the *_all functions should
be used.
Signed-off-by: Yehuda Sadeh <yehuda@hq.newdream.net>
Signed-off-by: Sage Weil <sage@newdream.net>
Latchesar Ionkov [Mon, 19 Jul 2010 20:40:03 +0000 (15:40 -0500)]
9p: Pass the correct end of buffer to p9stat_read
Pass the correct end of the buffer to p9stat_read.
Signed-off-by: Latchesar Ionkov <lucho@ionkov.net>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
Martin Schwidefsky [Tue, 27 Jul 2010 17:29:38 +0000 (19:29 +0200)]
[S390] etr: fix clock synchronization race
The etr events switch-to-local and sync-check disable the synchronous clock
and schedule a work queue that tries to get the clock back into sync.
If another switch-to-local or sync-check event occurs while the work queue
function etr_work_fn still runs the eacr.es bit and the clock_sync_word can
become inconsistent because check_sync_clock only uses the clock_sync_word
to determine if the clock is in sync or not. The second pass of the
etr_work_fn will reset the eacr.es bit but will leave the clock_sync_word
intact. Fix this race by moving the reset of the eacr.es bit into the
switch-to-local and sync-check functions and by checking the eacr.es bit
as well to decide if the clock needs to be synced.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Heiko Carstens [Tue, 27 Jul 2010 17:29:37 +0000 (19:29 +0200)]
[S390] Fix IRQ tracing in case of PER
In case user space is single stepped (PER) the program check handler
claims too early that IRQs are enabled on the return path.
Subsequent checks will notice that the IRQ mask in the PSW and
what lockdep thinks the IRQ mask should be do not correlate and
therefore will print a warning to the console and disable lockdep.
Fix this by doing all the work within the correct context.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Anton Blanchard [Tue, 13 Jul 2010 04:59:29 +0000 (14:59 +1000)]
[SCSI] ibmvscsi: Fix oops when an interrupt is pending during probe
A driver needs to be ready to take an interrupt as soon as it registers
an interrupt handler. I noticed the following oops when testing kdump:
ipr: IBM Power RAID SCSI Device Driver version: 2.5.0 (February 11, 2010)
ibmvscsi
30000002: SRP_VERSION: 16.a
ibmvscsi
30000002: SRP_VERSION: 16.a
Unable to handle kernel paging request for data at address 0x00000000
...
pc:
c000000004085e34: .tasklet_action+0xf4/0x1dc
...
c000000004086fe4 .__do_softirq+0x16c/0x2c0
c00000000403138c .call_do_softirq+0x14/0x24
c00000000400ee14 .do_softirq+0xa0/0x104
c00000000408690c .irq_exit+0x70/0xd0
c00000000400f190 .do_IRQ+0x214/0x2a8
c000000004004804 hardware_interrupt_entry+0x1c/0x98
--- Exception: 501 (Hardware Interrupt) at
c00000000400c544 .raw_local_irq_restore+0x48/0x54
c00000000465d2a8 ._raw_spin_unlock_irqrestore+0x74/0xa0
c0000000040e7f00 .__setup_irq+0x2ec/0x3f0
c0000000040e8198 .request_threaded_irq+0x194/0x22c
c00000000446d854 .rpavscsi_init_crq_queue+0x284/0x3f0
c00000000446c764 .ibmvscsi_probe+0x688/0x710
c00000000402903c .vio_bus_probe+0x37c/0x3e4
c000000004403f10 .driver_probe_device+0xec/0x1b8
c000000004404088 .__driver_attach+0xac/0xf4
c000000004403184 .bus_for_each_dev+0x98/0x104
c000000004403c98 .driver_attach+0x40/0x60
c0000000044026f0 .bus_add_driver+0x154/0x324
c0000000044045d0 .driver_register+0xe8/0x1ac
c00000000402b2a8 .vio_register_driver+0x54/0x74
c000000004933ea4 .ibmvscsi_module_init+0x80/0xc0
c000000004009834 .do_one_initcall+0x98/0x1d8
c0000000049005b4 .kernel_init+0x27c/0x33c
c000000004031550 .kernel_thread+0x54/0x70
srp_task needs to be setup before request_irq. The patch below fixes the oops.
Signed-off-by: Anton Blanchard <anton@samba.org>
Acked-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Linus Torvalds [Tue, 27 Jul 2010 16:23:39 +0000 (09:23 -0700)]
Merge branch 'urgent' of git://git./linux/kernel/git/paulus/perf
* 'urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/perf:
perf, powerpc: Use perf_sample_data_init() for the FSL code
Linus Torvalds [Tue, 27 Jul 2010 16:22:55 +0000 (09:22 -0700)]
Merge git://git.infradead.org/users/cbou/battery-2.6.35
* git://git.infradead.org/users/cbou/battery-2.6.35:
ds2782_battery: Rename get_current to fix build failure / name conflict
Linus Torvalds [Tue, 27 Jul 2010 16:21:00 +0000 (09:21 -0700)]
Merge git://git./linux/kernel/git/davem/net-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6:
s2io: fixing DBG_PRINT() macro
ath9k: fix dma direction for map/unmap in ath_rx_tasklet
net: dev_forward_skb should call nf_reset
net sched: fix race in mirred device removal
tun: avoid BUG, dump packet on GSO errors
bonding: set device in RLB ARP packet handler
wimax/i2400m: Add PID & VID for Intel WiMAX 6250
ipv6: Don't add routes to ipv6 disabled interfaces.
net: Fix skb_copy_expand() handling of ->csum_start
net: Fix corruption of skb csum field in pskb_expand_head() of net/core/skbuff.c
macvtap: Limit packet queue length
ixgbe/igb: catch invalid VF settings
bnx2x: Advance a module version
bnx2x: Protect statistics ramrod and sequence number
bnx2x: Protect a SM state change
wireless: use netif_rx_ni in ieee80211_send_layer2_update
Peter Zijlstra [Fri, 9 Jul 2010 08:21:21 +0000 (10:21 +0200)]
perf, powerpc: Use perf_sample_data_init() for the FSL code
We should use perf_sample_data_init() to initialize struct
perf_sample_data. As explained in the description of commit
dc1d628a
("perf: Provide generic perf_sample_data initialization"), it is
possible for userspace to get the kernel to dereference data.raw,
so if it is not initialized, that means that unprivileged userspace
can possibly oops the kernel. Using perf_sample_data_init makes sure
it gets initialized to NULL.
This conversion should have been included in commit
dc1d628a, but it
got missed.
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Acked-by: Kumar Gala <kumar.gala@freescale.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Axel Lin [Mon, 26 Jul 2010 02:41:58 +0000 (10:41 +0800)]
wm8350-regulator: fix wm8350_register_regulator error handling
In the case of platform_device_add() fail, we should call
platform_device_put() instead of platform_device_del()
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
Axel Lin [Mon, 26 Jul 2010 07:34:14 +0000 (15:34 +0800)]
ab3100: fix off-by-one value range checking for voltage selector
We use voltage selector as an array index for typ_voltages.
Thus the valid range for voltage selector should be 0..voltages_len-1.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Linus Walleij <linus.walleij@stericsson.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
Linus Torvalds [Mon, 26 Jul 2010 23:02:07 +0000 (16:02 -0700)]
Merge branch 'x86-fixes-for-linus' of git://git./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:
x86: Do not try to disable hpet if it hasn't been initialized before
x86, i8259: Only register sysdev if we have a real 8259 PIC
Breno Leitao [Mon, 26 Jul 2010 22:37:30 +0000 (15:37 -0700)]
s2io: fixing DBG_PRINT() macro
Patch
9e39f7c5b311a306977c5471f9e2ce4c456aa038 changed the
DBG_PRINT() macro and the if clause was wrongly changed. It means
that currently all the DBG_PRINT are being printed, flooding the
kernel log buffer with things like:
s2io: eth6: Next block at:
c0000000b9c90000
s2io: eth6: In Neterion Tx routine
Signed-off-by: Breno Leitao <leitao@linux.vnet.ibm.com>
Acked-by: Sreenivasa Honnur <Sreenivasa.Honnur@neterion.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Linus Torvalds [Mon, 26 Jul 2010 22:35:53 +0000 (15:35 -0700)]
Merge branch 'fixes' of git://git./linux/kernel/git/davej/cpufreq
* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/davej/cpufreq:
[CPUFREQ] powernow-k8: Limit Pstate transition latency check
[CPUFREQ] Fix PCC driver error path
[CPUFREQ] fix double freeing in error path of pcc-cpufreq
[CPUFREQ] pcc driver should check for pcch method before calling _OSC
[CPUFREQ] fix memory leak in cpufreq_add_dev
[CPUFREQ] revert "[CPUFREQ] remove rwsem lock from CPUFREQ_GOV_STOP call (second call site)"
Linus Torvalds [Mon, 26 Jul 2010 22:35:04 +0000 (15:35 -0700)]
Merge branch 'upstream' of git://git.linux-mips.org/upstream-linus
* 'upstream' of git://git.linux-mips.org/pub/scm/upstream-linus:
MIPS: Set io_map_base for several PCI bridges lacking it
MIPS: Alchemy: Define eth platform devices in the correct order
MIPS: BCM63xx: Prevent second enet registration on BCM6338
MIPS: Quit using undefined behavior of ADDU in 64-bit atomic operations.
MIPS: N32: Define getdents64.
MIPS: MTX-1: Fix PCI on the MeshCube and related boards
MIPS: Make init_vdso a subsys_initcall.
MIPS: "Fix" useless 'init_vdso successfully' message.
MIPS: PowerTV: Move register setup to before reading registers.
SOUND: Au1000: Fix section mismatch
VIDEO: Au1100fb: Fix section mismatch
VIDEO: PMAGB-B: Fix section mismatch
VIDEO: PMAG-BA: Fix section mismatch
NET: declance: Fix section mismatches
VIDEO. gbefb: Fix section mismatches.
Jesse Barnes [Mon, 26 Jul 2010 20:51:22 +0000 (13:51 -0700)]
drm/i915: make sure we shut off the panel in eDP configs
Fix error from the last pull request. Making sure we shut the panel off
is more correct and saves power.
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
David S. Miller [Mon, 26 Jul 2010 20:26:09 +0000 (13:26 -0700)]
Merge branch 'master' of git://git./linux/kernel/git/linville/wireless-2.6
Linus Torvalds [Mon, 26 Jul 2010 20:07:25 +0000 (13:07 -0700)]
Merge git://git./linux/kernel/git/gregkh/driver-core-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6:
sysfs: allow creating symlinks from untagged to tagged directories
sysfs: sysfs_delete_link handle symlinks from untagged to tagged directories.
sysfs: Don't allow the creation of symlinks we can't remove
Linus Torvalds [Mon, 26 Jul 2010 20:06:39 +0000 (13:06 -0700)]
Merge git://git./linux/kernel/git/gregkh/usb-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6:
USB: musb: tusb6010: fix compile error with n8x0_defconfig
USB: FTDI: Add support for the RT System VX-7 radio programming cable
USB: add quirk for Broadcom BT dongle
USB: usb-storage: fix initializations of urb fields
USB: xhci: Set Mult field in endpoint context correctly.
USB: sisusbvga: Fix for USB 3.0
USB: adds Artisman USB dongle to list of quirky devices
USB: xhci: Set EP0 dequeue ptr after reset of configured device.
USB: Fix USB3.0 Port Speed Downgrade after port reset
USB: xHCI: Fix another bug in link TRB activation change.
USB: option: Add support for AMOI Skypephone S2
USB: New PIDs for Qualcomm gobi 2000 (qcserial)
USB: ftdi_sio: support for Signalyzer tools based on FTDI chips
USB: s3c2410_udc: be aware of connected gadget driver
USB: Expose vendor-specific ACM channel on Nokia 5230
USB: Add PID for Sierra 250U to drivers/usb/serial/sierra.c
USB: option: add support for 1da5:4518
Linus Torvalds [Mon, 26 Jul 2010 20:06:25 +0000 (13:06 -0700)]
Merge git://git./linux/kernel/git/gregkh/tty-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6:
serial: fix rs485 for atmel_serial on avr32
Linus Torvalds [Mon, 26 Jul 2010 20:04:25 +0000 (13:04 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/anholt/drm-intel
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/anholt/drm-intel:
drm/i915: add pipe A force quirks to i915 driver
drm/i915: Fix panel fitting regression since
734b4157
drm/i915: fix deadlock in fb teardown
drm/i915: don't free non-existent compressed llb on ILK+
agp/intel: Use the correct mask to detect i830 aperture size.
drm/i915: disable FBC when more than one pipe is active
drm/i915: Use the correct scanout alignment for fbcon.
drm/i915: make sure eDP panel is turned on
drm/i915: add PANEL_UNLOCK_REGS definition
drm/i915: Make G4X-style PLL search more permissive
drm/i915: Clear any existing dither mode prior to enabling spatial dithering
drm/i915: handle shared framebuffers when flipping
drm/i915: Explosion following OOM in do_execbuffer.
gpu/drm/i915: Add a blacklist to omit modeset on LID open
Borislav Petkov [Thu, 8 Jul 2010 15:55:30 +0000 (17:55 +0200)]
[CPUFREQ] powernow-k8: Limit Pstate transition latency check
The Pstate transition latency check was added for broken F10h BIOSen
which wrongly contain a value of 0 for transition and bus master
latency. Fam11h and later, however, (will) have similar transition
latency so extend that behavior for them too.
Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
Signed-off-by: Dave Jones <davej@redhat.com>
Matthew Garrett [Thu, 15 Jul 2010 15:44:00 +0000 (11:44 -0400)]
[CPUFREQ] Fix PCC driver error path
The PCC cpufreq driver unmaps the mailbox address range if any CPUs fail to
initialise, but doesn't do anything to remove the registered CPUs from the
cpufreq core resulting in failures further down the line. We're better off
simply returning a failure - the cpufreq core will unregister us cleanly if
we end up with no successfully registered CPUs. Tidy up the failure path
and also add a sanity check to ensure that the firmware gives us a realistic
frequency - the core deals badly with that being set to 0.
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Cc: Naga Chumbalkar <nagananda.chumbalkar@hp.com>
Signed-off-by: Dave Jones <davej@redhat.com>
Daniel J Blueman [Fri, 23 Jul 2010 22:06:52 +0000 (23:06 +0100)]
[CPUFREQ] fix double freeing in error path of pcc-cpufreq
Prevent double freeing on error path.
Signed-off-by: Daniel J Blueman <daniel.blueman@gmail.com>
Signed-off-by: Dave Jones <davej@redhat.com>
Matthew Garrett [Tue, 20 Jul 2010 17:52:00 +0000 (13:52 -0400)]
[CPUFREQ] pcc driver should check for pcch method before calling _OSC
The pcc specification documents an _OSC method that's incompatible with the
one defined as part of the ACPI spec. This shouldn't be a problem as both
are supposed to be guarded with a UUID. Unfortunately approximately nobody
(including HP, who wrote this spec) properly check the UUID on entry to the
_OSC call. Right now this could result in surprising behaviour if the pcc
driver performs an _OSC call on a machine that doesn't implement the pcc
specification. Check whether the PCCH method exists first in order to reduce
this probability.
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Cc: Naga Chumbalkar <nagananda.chumbalkar@hp.com>
Signed-off-by: Dave Jones <davej@redhat.com>
Xiaotian Feng [Tue, 20 Jul 2010 12:11:02 +0000 (20:11 +0800)]
[CPUFREQ] fix memory leak in cpufreq_add_dev
We didn't free policy->related_cpus in error path err_unlock_policy.
This is catched by following kmemleak report:
unreferenced object 0xffff88022a0b96d0 (size 512):
comm "modprobe", pid 886, jiffies
4294689177 (age 780.694s)
hex dump (first 32 bytes):
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
backtrace:
[<
ffffffff8111ebe5>] create_object+0x186/0x281
[<
ffffffff814fad4f>] kmemleak_alloc+0x60/0xa7
[<
ffffffff8111127a>] kmem_cache_alloc_node_notrace+0x120/0x142
[<
ffffffff81262e4f>] alloc_cpumask_var_node+0x2c/0xd7
[<
ffffffff81262f0b>] alloc_cpumask_var+0x11/0x13
[<
ffffffff81262f1c>] zalloc_cpumask_var+0xf/0x11
[<
ffffffff8140fac0>] cpufreq_add_dev+0x11f/0x547
[<
ffffffff81334bda>] sysdev_driver_register+0xc2/0x11d
[<
ffffffff8140e334>] cpufreq_register_driver+0xcb/0x1b8
[<
ffffffffa032e040>] 0xffffffffa032e040
[<
ffffffff810021ba>] do_one_initcall+0x5e/0x15c
[<
ffffffff81087f94>] sys_init_module+0xa6/0x1e6
[<
ffffffff81009bc2>] system_call_fastpath+0x16/0x1b
[<
ffffffffffffffff>] 0xffffffffffffffff
Signed-off-by: Xiaotian Feng <dfeng@redhat.com>
Cc: Thomas Renninger <trenn@suse.de>
Cc: Prarit Bhargava <prarit@redhat.com>
Signed-off-by: Dave Jones <davej@redhat.com>
Andrej Gelenberg [Fri, 14 May 2010 22:15:58 +0000 (15:15 -0700)]
[CPUFREQ] revert "[CPUFREQ] remove rwsem lock from CPUFREQ_GOV_STOP call (second call site)"
395913d0b1db37092ea3d9d69b832183b1dd84c5 ("[CPUFREQ] remove rwsem lock
from CPUFREQ_GOV_STOP call (second call site)") is not needed, because
there is no rwsem lock in cpufreq_ondemand and cpufreq_conservative
anymore. Lock should not be released until the work done.
Addresses https://bugzilla.kernel.org/show_bug.cgi?id=1594
Signed-off-by: Andrej Gelenberg <andrej.gelenberg@udo.edu>
Cc: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
Cc: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Dave Jones <davej@redhat.com>
Eric W. Biederman [Wed, 21 Jul 2010 05:12:01 +0000 (22:12 -0700)]
sysfs: allow creating symlinks from untagged to tagged directories
Supporting symlinks from untagged to tagged directories is reasonable,
and needed to support CONFIG_SYSFS_DEPRECATED. So don't fail a prior
allowing that case to work.
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Eric W. Biederman [Wed, 21 Jul 2010 05:10:58 +0000 (22:10 -0700)]
sysfs: sysfs_delete_link handle symlinks from untagged to tagged directories.
This happens for network devices when SYSFS_DEPRECATED is enabled.
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>