Anton Vorontsov [Fri, 9 Sep 2011 19:18:00 +0000 (23:18 +0400)]
ARM: cns3xxx: Fix newly introduced warnings in the PCIe code
commit d5341942d784134f2997b3ff82cd63cf71d1f932 ("PCI: Make the struct
pci_dev * argument of pci_fixup_irqs const") did not change argument
of pdev_to_cnspci(), and thus introduced the following warnings:
CHECK arch/arm/mach-cns3xxx/pcie.c
pcie.c:177:60: warning: incorrect type in argument 1 (different modifiers)
pcie.c:177:60: expected struct pci_dev *dev
pcie.c:177:60: got struct pci_dev const *dev
CC arch/arm/mach-cns3xxx/pcie.o
pcie.c: In function 'cns3xxx_pcie_map_irq':
pcie.c:177: warning: passing argument 1 of 'pdev_to_cnspci' discards qualifiers from pointer target type
pcie.c:52: note: expected 'struct pci_dev *' but argument is of type 'const struct pci_dev *'
This patch fixes the issue.
Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
Tommy Lin [Thu, 28 Jul 2011 17:14:46 +0000 (01:14 +0800)]
ARM: cns3xxx: Fix compile error caused by hardware.h removed
Commit c9d95fbe59e426eed7f16e7cac812e46ac4772d0 "ARM: convert PCI defines
to variables" deleted cns3xxx' hardware.h, but didn't remove references
for it, so do it now.
This patch removes lines that refer to hardware.h.
Signed-off-by: Tommy Lin <tommy.lin.1101@gmail.com> Signed-off-by: Imre Kaloz <kaloz@openwrt.org> Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
Linus Walleij [Tue, 2 Aug 2011 15:48:38 +0000 (17:48 +0200)]
ARM: davinci: fix cache flush build error
The TNET variant of DaVinci compiles some code that it shares
with other DaVinci variants, however it has a V6 CPU rather than
an ARM926T, thus the hardcoded call to arm926_flush_kern_cache_all()
in sleep.S will obviously fail, and we need to build with the
v6_flush_kern_cache_all() call instead. This was triggered by
manually altering the DaVinci config to build the TNET version.
Cc: Dave Martin <dave.martin@linaro.org> Cc: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Sekhar Nori <nsekhar@ti.com> Cc: stable@kernel.org
Sergei Shtylyov [Fri, 8 Jul 2011 15:24:57 +0000 (19:24 +0400)]
ARM: davinci: correct MDSTAT_STATE_MASK
MDSTAT.STATE occupies bits 0..5 according to all available documentation, so fix
the #define MDSTAT_STATE_MASK at last. Using the wrong value seems to have been
harmless though...
Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Sekhar Nori <nsekhar@ti.com>
ARM: davinci: da850 EVM: read mac address from SPI flash
DA850/OMAP-L138 EMAC driver uses random mac address instead of
a fixed one because the mac address is not stuffed into EMAC
platform data.
This patch provides a function which reads the mac address
stored in SPI flash (registered as MTD device) and populates the
EMAC platform data. The function which reads the mac address is
registered as a callback which gets called upon addition of MTD
device.
NOTE: In case the MAC address stored in SPI flash is erased, follow
the instructions at [1] to restore it.
Modifications in v2:
Guarded registering the mtd_notifier only when MTD is enabled.
Earlier this was handled using mtd_has_partitions() call, but
this has been removed in Linux v3.0.
Modifications in v3:
a. Guarded da850_evm_m25p80_notify_add() function and
da850evm_spi_notifier structure with CONFIG_MTD macros.
b. Renamed da850_evm_register_mtd_user() function to
da850_evm_setup_mac_addr() and removed the struct mtd_notifier
argument to this function.
c. Passed the da850evm_spi_notifier structure to register_mtd_user()
function.
Modifications in v4:
Moved the da850_evm_setup_mac_addr() function within the first
CONFIG_MTD ifdef construct.
Signed-off-by: Rajashekhara, Sudhakar <sudhakar.raj@ti.com> Signed-off-by: Sekhar Nori <nsekhar@ti.com> Cc: stable@kernel.org
Paul Walmsley [Mon, 5 Sep 2011 02:21:16 +0000 (20:21 -0600)]
Merge branches 'non_hwmod_compliant_fix_3.1rc', 'omap3_clock_fixes_3.1rc', 'omap4_clock_fixes_3.1rc', 'missing_2430_musb_adds_terminator_fix_3.1rc' and 'pwrdm_clkdm_fixes_3.1rc' into prcm-fixes-a-3.1rc
Paul Walmsley [Mon, 5 Sep 2011 02:20:53 +0000 (20:20 -0600)]
OMAP2430: hwmod: musb: add missing terminator to omap2430_usbhsotg_addrs[]
Add a missing array terminator to omap2430_usbhsotg_addrs[]. Without
this terminator, the omap_hwmod resource building code runs off the
end of the array, resulting in at least this error -- if not worse
behavior:
[ 0.578002] musb-omap2430: failed to claim resource 4
[ 0.583465] omap_device: musb-omap2430: build failed (-16)
[ 0.589294] Could not build omap_device for musb-omap2430 usb_otg_hs
This should have been part of commit 78183f3fdf76f422431a81852468be01b36db325 ("omap_hwmod: use a null
structure record to terminate omap_hwmod_addr_space arrays") but was
evidently missed.
Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
drm/radeon/kms: make sure pci max read request size is valid on evergreen+ (v2)
drm/radeon/kms: set a default max_pixel_clock
Merge branch 'for-linus' of git://oss.sgi.com/xfs/xfs
* 'for-linus' of git://oss.sgi.com/xfs/xfs:
xfs: fix ->write_inode return values
xfs: fix xfs_mark_inode_dirty during umount
xfs: deprecate the nodelaylog mount option
Alex Deucher [Thu, 1 Sep 2011 17:46:15 +0000 (17:46 +0000)]
drm/radeon/kms: make sure pci max read request size is valid on evergreen+ (v2)
If the bios or OS sets the pci max read request size to 0 or an
invalid value (6,7), it can result in a hang or slowdown. Check
and set it to something sane if it's invalid.
v2: use pci reg defines from include/linux/pci_regs.h
Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@kernel.org Reviewed-by: Michel Dänzer <michel.daenzer@amd.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
Currently we always redirty an inode that was attempted to be written out
synchronously but has been cleaned by an AIL pushed internall, which is
rather bogus. Fix that by doing the i_update_core check early on and
return 0 for it. Also include async calls for it, as doing any work for
those is just as pointless. While we're at it also fix the sign for the
EIO return in case of a filesystem shutdown, and fix the completely
non-sensical locking around xfs_log_inode.
Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Dave Chinner <dchinner@redhat.com> Signed-off-by: Alex Elder <aelder@sgi.com>
(cherry picked from commit 297db93bb74cf687510313eb235a7aec14d67e97)
During umount we do not add a dirty inode to the lru and wait for it to
become clean first, but force writeback of data and metadata with
I_WILL_FREE set. Currently there is no way for XFS to detect that the
inode has been redirtied for metadata operations, as we skip the
mark_inode_dirty call during teardown. Fix this by setting i_update_core
nanually in that case, so that the inode gets flushed during inode reclaim.
Alternatively we could enable calling mark_inode_dirty for inodes in
I_WILL_FREE state, and let the VFS dirty tracking handle this. I decided
against this as we will get better I/O patterns from reclaim compared to
the synchronous writeout in write_inode_now, and always marking the inode
dirty in some way from xfs_mark_inode_dirty is a better safetly net in
either case.
Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Dave Chinner <dchinner@redhat.com> Signed-off-by: Alex Elder <aelder@sgi.com>
(cherry picked from commit da6742a5a4cc844a9982fdd936ddb537c0747856)
Linus Torvalds [Wed, 31 Aug 2011 16:02:06 +0000 (09:02 -0700)]
Merge branch 'for-linus' of git://neil.brown.name/md
* 'for-linus' of git://neil.brown.name/md:
md/raid5: fix a hang on device failure.
md: fix clearing of 'blocked' flag in the presence of bad blocks.
md/linear: avoid corrupting structure while waiting for rcu_free to complete.
md: use REQ_NOIDLE flag in md_super_write()
md: ensure changes to 'write-mostly' are reflected in metadata.
md: report failure if a 'set faulty' request doesn't.
Linus Torvalds [Wed, 31 Aug 2011 15:58:36 +0000 (08:58 -0700)]
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/p1023rds: Fix the error of bank-width of nor flash
powerpc/85xx: enable caam crypto driver by default
powerpc/85xx: enable the audio drivers in the defconfigs
Jiaying Zhang [Wed, 31 Aug 2011 15:50:51 +0000 (11:50 -0400)]
ext4: remove i_mutex lock in ext4_evict_inode to fix lockdep complaining
The i_mutex lock and flush_completed_IO() added by commit 2581fdc810
in ext4_evict_inode() causes lockdep complaining about potential
deadlock in several places. In most/all of these LOCKDEP complaints
it looks like it's a false positive, since many of the potential
circular locking cases can't take place by the time the
ext4_evict_inode() is called; but since at the very least it may mask
real problems, we need to address this.
This change removes the flush_completed_IO() and i_mutex lock in
ext4_evict_inode(). Instead, we take a different approach to resolve
the software lockup that commit 2581fdc810 intends to fix. Rather
than having ext4-dio-unwritten thread wait for grabing the i_mutex
lock of an inode, we use mutex_trylock() instead, and simply requeue
the work item if we fail to grab the inode's i_mutex lock.
This should speed up work queue processing in general and also
prevents the following deadlock scenario: During page fault,
shrink_icache_memory is called that in turn evicts another inode B.
Inode B has some pending io_end work so it calls ext4_ioend_wait()
that waits for inode B's i_ioend_count to become zero. However, inode
B's ioend work was queued behind some of inode A's ioend work on the
same cpu's ext4-dio-unwritten workqueue. As the ext4-dio-unwritten
thread on that cpu is processing inode A's ioend work, it tries to
grab inode A's i_mutex lock. Since the i_mutex lock of inode A is
still hold before the page fault happened, we enter a deadlock.
Dave Airlie [Tue, 30 Aug 2011 19:22:04 +0000 (20:22 +0100)]
drm/radeon/kms: set a default max_pixel_clock
On some Power rv100 cards, we have no ATY OF table, but we have
no combios table either, and hence we refuse all modes on VGA-0
since we end up with a 0 max pixel clock.
Signed-off-by: Dave Airlie <airlied@redhat.com> Cc: stable@kernel.org Reviewed-by: Alex Deucher <alexdeucher@gmail.com> Reviewed-by: Jerome Glisse <jglisse@redhat.com>
NeilBrown [Wed, 31 Aug 2011 02:49:14 +0000 (12:49 +1000)]
md/raid5: fix a hang on device failure.
Waiting for a 'blocked' rdev to become unblocked in the raid5d thread
cannot work with internal metadata as it is the raid5d thread which
will clear the blocked flag.
This wasn't a problem in 3.0 and earlier as we only set the blocked
flag when external metadata was used then.
However we now set it always, so we need to be more careful.
Chunhe Lan [Fri, 12 Aug 2011 11:00:09 +0000 (19:00 +0800)]
powerpc/p1023rds: Fix the error of bank-width of nor flash
In the p1023rds, a physical bus of nor flash is 16 bits width.
The bank-width is width (in bytes) of the bus width. So, the
value of bank-width of nor flash is not one, and it should be
two.
Signed-off-by: Chunhe Lan <Chunhe.Lan@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Linus Torvalds [Tue, 30 Aug 2011 17:34:24 +0000 (10:34 -0700)]
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/radeon/kms: add s/r quirk for Compaq Presario V5245EU
drm/radeon/kms: evergreen & ni reset SPI block on CP resume
drm: Fix the number of connector and encoder to cleanup functions
If there are no builtin users of find_next_bit_le() and
find_next_zero_bit_le(), these functions are not present in the kernel
image, causing m68k allmodconfig to fail with:
This started to happen after commit 171d809df189 ("m68k: merge mmu and
non-mmu bitops.h"), as m68k had its own inline versions before.
commit 63e424c84429 ("arch: remove CONFIG_GENERIC_FIND_{NEXT_BIT,
BIT_LE, LAST_BIT}") added find_last_bit.o to obj-y (so it's always
included), but find_next_bit.o to lib-y (so it gets removed by the
linker if there are no builtin users).
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Akinobu Mita <akinobu.mita@gmail.com> Cc: Greg Ungerer <gerg@uclinux.org> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Jerome Glisse [Wed, 24 Aug 2011 20:00:17 +0000 (20:00 +0000)]
drm/radeon/kms: evergreen & ni reset SPI block on CP resume
For some reason SPI block is in broken state after module
unloading. This lead to broken rendering after reloading
module. Fix this by reseting SPI block in CP resume function
Signed-off-by: Jerome Glisse <jglisse@redhat.com Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@kernel.org Signed-off-by: Dave Airlie <airlied@redhat.com>
NeilBrown [Tue, 30 Aug 2011 06:20:17 +0000 (16:20 +1000)]
md: fix clearing of 'blocked' flag in the presence of bad blocks.
When the 'blocked' flag on a device is cleared while there are
unacknowledged bad blocks we must fail the device. This is needed for
backwards compatability of the interface.
The code currently uses the wrong test for "unacknowledged bad blocks
exist". Change it to the right test.
Linus Torvalds [Mon, 29 Aug 2011 23:34:07 +0000 (16:34 -0700)]
Merge branch 'fixes' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'fixes' of master.kernel.org:/home/rmk/linux-2.6-arm:
ARM: pm: avoid writing the auxillary control register for ARMv7
ARM: pm: some ARMv7 requires a dsb in resume to ensure correctness
ARM: pm: arm920/926: fix number of registers saved
ARM: pm: CPU specific code should not overwrite r1 (v:p offset)
ARM: 7066/1: proc-v7: disable SCTLR.TE when disabling MMU
ARM: 7065/1: kexec: ensure new kernel is entered in ARM state
ARM: 7003/1: vexpress: Add clock definition for the SP805.
ARM: 7051/1: cpuimx* boards: fix mach-types errors
ARM: 7019/1: Footbridge: select CLKEVT_I8253 for ARCH_NETWINDER
ARM: 7015/1: ARM errata: Possible cache data corruption with hit-under-miss enabled
ARM: 7014/1: cache-l2x0: Fix L2 Cache size calculation.
ARM: 6967/1: ep93xx: ts72xx: fix board model detection
ARM: 6965/1: ep93xx: add model detection for ts-7300 and ts-7400 boards
ARM: cache: detect VIPT aliasing I-cache on ARMv6
ARM: twd: register clockevents device before enabling PPI
ARM: realview: ensure visibility of writes during reset
ARM: perf: make name of arm_pmu_type consistent
ARM: perf: fix prototype of release_pmu
ARM: fix perf build with uclibc toolchains
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (42 commits)
netpoll: fix incorrect access to skb data in __netpoll_rx
cassini: init before use in cas_interruptN.
can: ti_hecc: Fix uninitialized spinlock in probe
can: ti_hecc: Fix unintialized variable
net: sh_eth: fix the compile error
net/phy: fix DP83865 phy interrupt handler
sendmmsg/sendmsg: fix unsafe user pointer access
ibmveth: Fix leak when recycling skb and hypervisor returns error
arp: fix rcu lockdep splat in arp_process()
bridge: fix a possible use after free
bridge: Pseudo-header required for the checksum of ICMPv6
mcast: Fix source address selection for multicast listener report
MAINTAINERS: Update GIT trees for network development
ath9k: Fix PS wrappers in ath9k_set_coverage_class
carl9170: Fix mismatch in carl9170_op_set_key mutex lock-unlock
wl12xx: add max_sched_scan_ssids value to the hw description
wl12xx: Fix validation of pm_runtime_get_sync return value
wl12xx: Remove obsolete testmode NVS push command
bcma: add uevent to the bus, to autoload drivers
ath9k_hw: Fix STA (AR9485) bringup issue due to incorrect MAC address
...
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc:
sparc32,sun4d: Change IPI IRQ level to prevent collision between IPI and timer interrupt
sparc: Remove another reference to nfsservctl
Linus Torvalds [Mon, 29 Aug 2011 20:34:48 +0000 (13:34 -0700)]
Merge branch 'sh-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-3.x
* 'sh-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-3.x:
sh: fix the compile error in setup-sh7757.c
serial: sh-sci: report CTS as active for get_mctrl
sh: Add unaligned memory access for PC relative intructions
sh: Fix unaligned memory access for branches without delay slots
sh: Fix up fallout from cpuidle changes.
serial: sh-sci: console Runtime PM support
sh: Fix conflicting definitions of ptrace_triggered
serial: sh-sci: fix DMA build by including dma-mapping.h
serial: sh-sci: Fix up default regtype probing.
sh: intc: enable both edges GPIO interrupts on sh7372
shwdt: fix usage of mod_timer
clocksource: sh_cmt: wait for CMCNT on init V2
Kjetil Oftedal [Sun, 28 Aug 2011 22:16:28 +0000 (00:16 +0200)]
sparc32,sun4d: Change IPI IRQ level to prevent collision between IPI and timer interrupt
On Sun4d systems running in SMP mode, IRQ 14 is used for timer interrupts
and has a specialized interrupt handler. IPI is currently set to use IRQ 14
as well, which causes it to trigger the timer interrupt handler, and not the
IPI interrupt handler.
The IPI interrupt is therefore changed to IRQ 13, which is the highest
normally handled interrupt. This IRQ is also used for SBUS interrupts,
however there is nothing in the IPI/SBUS interrupt handlers that indicate
that they will not handle sharing the interrupt.
(IRQ 13 is indicated as audio interrupt, which is unlikely to be found in a
sun4d system)
Signed-off-by: Kjetil Oftedal <oftedal@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Magnus Damm [Fri, 26 Aug 2011 05:28:42 +0000 (05:28 +0000)]
ARM: mach-shmobile: sh7372 CMT3 and CMT4 clock support
Add clock control support for sh7372 CMT hardware blocks.
No upstream sh7372 boards are making use of CMT3 + CMT4,
but the sh7372 hardware happens to come out of reset with
all CMT MSTP clocks _enabled_, so to save power we need
to implement a fix in software to shut down unused clocks.
Magnus Damm [Fri, 26 Aug 2011 05:25:11 +0000 (05:25 +0000)]
ARM: mach-shmobile: sh7372 MSIOF clock support
Add clock control support for sh7372 MSIOF hardware blocks.
No upstream sh7372 boards are making use of MSIOF0->2,
but the sh7372 hardware happens to come out of reset with
all MSIOF MSTP clocks _enabled_, so to save power we need
to implement a fix in software to shut down unused clocks.
Magnus Damm [Wed, 10 Aug 2011 05:45:30 +0000 (05:45 +0000)]
ARM: mach-shmobile: Remove 3DG/SGX from sh7372 INTCS
This patch removes support for the SGX interrupt source in
the sh7372 INTCS controller.
The SGX hardware block included in sh7372 is already hooked
up to the ARM Cortex-A8 core using the INTCA controller,
so SGX users are encouraged to make use of that interrupt
source instead.
Removing support for the SGX interrupt source in INTCS
simplifies the sh7372 power management code by allowing
us to assume that only INTCA needs to be powered on to
operate the SGX hardware.
If the INTCS interrupt source would be kept then the kernel
would be forced to deal with additional dependencies that does
not follow the regular power domain hiearachy. With this
patch in place we can safely power down INTCS while the
SGX is operating.
Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
CC arch/sh/kernel/cpu/sh4a/setup-sh7757.o
arch/sh/kernel/cpu/sh4a/setup-sh7757.c:681: error: implicit declaration of function ‘DMA_BIT_MASK’
arch/sh/kernel/cpu/sh4a/setup-sh7757.c:681: error: initializer element is not constant
arch/sh/kernel/cpu/sh4a/setup-sh7757.c:681: error: (near initialization for ‘usb_ehci_device.dev.coherent_dma_mask’)
arch/sh/kernel/cpu/sh4a/setup-sh7757.c:705: error: initializer element is not constant
arch/sh/kernel/cpu/sh4a/setup-sh7757.c:705: error: (near initialization for ‘usb_ohci_device.dev.coherent_dma_mask’)
make[3]: *** [arch/sh/kernel/cpu/sh4a/setup-sh7757.o] Error 1
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Yoshii Takashi [Tue, 23 Aug 2011 08:27:18 +0000 (08:27 +0000)]
serial: sh-sci: report CTS as active for get_mctrl
sh-sci.c sets hardware up and then let the HW do all flow controls.
There is no software code, nor needs to get/set real CTS signal.
But, when turning CRTSCTS on through termios, uart_set_termios() in
serial_core.c checks CTS, and stops TX if it is inactive at the moment.
Because sci_get_mctrl() returns a fixed value DTR|RTS|DSR but CTS,
the sequence
open -> set CRTSCTS -> write
hit the case and stop working, no more outputs.
This patch makes sci_get_mctrl() report CTS in addition.
Signed-off-by: Takashi YOSHII <takashi.yoshii.zj@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Russell King [Fri, 26 Aug 2011 21:44:59 +0000 (22:44 +0100)]
ARM: pm: avoid writing the auxillary control register for ARMv7
For ARMv7 kernels running in the non-secure world, writing to the
auxillary control register causes an abort, so we must avoid directly
writing the auxillary control register. If the ACR has already been
reinitialized by SoC code, don't try to restore it.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Russell King [Sat, 27 Aug 2011 10:37:58 +0000 (11:37 +0100)]
ARM: pm: CPU specific code should not overwrite r1 (v:p offset)
r1 stores the v:p offset from the CPU invariant resume code, and is
expected to be preserved by the CPU specific code. Overwriting it is
not a good idea.
We've managed to get away with it on sa1100 platforms because most
happen to have PHYS_OFFSET == PAGE_OFFSET, but that may not be the
case depending on kernel configuration. So fix this latent bug.
This fixes xsc3 as well which was saving and restoring this register
independently.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Will Deacon [Fri, 26 Aug 2011 15:34:51 +0000 (16:34 +0100)]
ARM: 7066/1: proc-v7: disable SCTLR.TE when disabling MMU
cpu_v7_reset disables the MMU and then branches to the provided address.
On Thumb-2 kernels, we should take care to clear the Thumb Exception
enable bit in the System Control Register, otherwise this may wreak
havok in the code to which we are branching (for example, an ARM kernel
image via kexec).
Reviewed-by: Dave Martin <dave.martin@linaro.org> Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Will Deacon [Fri, 26 Aug 2011 15:32:57 +0000 (16:32 +0100)]
ARM: 7065/1: kexec: ensure new kernel is entered in ARM state
Commit 540b5738 ("ARM: 6999/1: head, zImage: Always Enter the kernel in
ARM state") mandates that the kernel should be entered in ARM state.
If a Thumb-2 kernel kexecs a new kernel image, we need to ensure that
we change state when branching to the new code. This patch replaces a
mov pc, lr with a bx lr on Thumb-2 kernels so that we transition to ARM
state if need be.
Reviewed-by: Dave Martin <dave.martin@linaro.org> Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This patch updates the recently submitted
"Associate the HDMI clock together with LCDC1 on sh7372"
to V2 with the following change:
- Use lcdc1_device on AP4EVB to build properly.
Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Linus Torvalds [Fri, 26 Aug 2011 22:00:49 +0000 (15:00 -0700)]
Merge branch 'drm-intel-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/keithp/linux-2.6
* 'drm-intel-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/keithp/linux-2.6:
drm/i915: Fix wrong initializer for "locked" variable in assert_panel_unlocked
i915: do not setup intel_backlight twice
Linus Torvalds [Fri, 26 Aug 2011 20:10:06 +0000 (13:10 -0700)]
Merge branch 'usb-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6
* 'usb-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6: (30 commits)
USB: ftdi_sio: add Calao reference board support
USB option driver K3765/K4505 avoid CDC_DATA interface
USB: option: add YUGA device id to driver
usb: s5p-ehci: fix a NULL pointer deference
USB: EHCI: Do not rely on PORT_SUSPEND to stop USB resuming in ehci_bus_resume().
USB option driver add PID of Huawei Vodafone K4605
USB option driver add PID of Huawei Vodafone K3806
xhci: Handle zero-length isochronous packets.
USB: Avoid NULL pointer deref in usb_hcd_alloc_bandwidth.
usb: musb: gadget: fix error path
usb: gadget: f_phonet: unlock in error case
usb: musb: blackfin: include prefetch head file
usb: musb: tusb6010: fix compilation
usb: gadget: renesas_usbhs: fix DMA build by including dma-mapping.h
usb: musb: cppi: fix build errors due to DBG and missing musb variable
usb: musb: ux500: replace missing DBG with dev_dbg
usb: musb: ux500: set dma config for both src and dst
usb: musb: fix oops on musb_gadget_pullup
usb: host: ehci-omap: fix .remove and failure handling path of .probe(v1)
usb: gadget: hid: don't STALL when processing a HID Descriptor request
...
Linus Torvalds [Fri, 26 Aug 2011 20:06:06 +0000 (13:06 -0700)]
Merge branch 'tty-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6
* 'tty-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6:
omap-serial: Allow IXON and IXOFF to be disabled.
TTY: serial, document ignoring of uart->ops->startup error
TTY: pty, fix pty counting
8250: Fix race condition in serial8250_backup_timeout().
serial/8250_pci: delete duplicate data definition
8250_pci: add support for Rosewill RC-305 4x serial port card
tty: Add "spi:" prefix for spi modalias
atmel_serial: fix atmel_default_console_device
serial: 8250_pnp: add Intermec CV60 touchscreen device
drivers/serial/ucc_uart.c: Fix compiler warning
pch_uart: Set PCIe bus number using probe parameter
serial: samsung: Fix build error
françois romieu [Thu, 25 Aug 2011 05:02:49 +0000 (05:02 +0000)]
cassini: init before use in cas_interruptN.
Signed-off-by: Francois Romieu <romieu@fr.zoreil.com> Spotted-by: Thomas Jarosch <thomas.jarosch@intra2net.com> Signed-off-by: David S. Miller <davem@davemloft.net>
CC drivers/net/sh_eth.o
drivers/net/sh_eth.c:1115: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘sh_eth_interrupt’
drivers/net/sh_eth.c: In function ‘sh_eth_open’:
drivers/net/sh_eth.c:1387: error: implicit declaration of function ‘request_irq’
drivers/net/sh_eth.c:1387: error: ‘sh_eth_interrupt’ undeclared (first use in this function)
drivers/net/sh_eth.c:1387: error: (Each undeclared identifier is reported only once
drivers/net/sh_eth.c:1387: error: for each function it appears in.)
drivers/net/sh_eth.c:1391: error: ‘IRQF_SHARED’ undeclared (first use in this function)
drivers/net/sh_eth.c:1424: error: implicit declaration of function ‘free_irq’
make[2]: *** [drivers/net/sh_eth.o] Error 1
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Signed-off-by: David S. Miller <davem@davemloft.net>
According to the DP83865 datasheet we need to clear
the interrupt status bit by writing a 1 to the
corresponding bit in INT_CLEAR (2:0 are reserved).
Proposed and tested by Thorsten.
Signed-off-by: Thorsten Schubert <tshu@msc-ge.com> Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Linus Torvalds [Fri, 26 Aug 2011 16:28:22 +0000 (09:28 -0700)]
Merge branch 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6
* 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6:
[S390] memory hotplug: only unassign assigned increments
[S390] Change default action from reipl to stop for on_restart
[S390] arch/s390/kernel/ipl.c: correct error detection check
[S390] drivers/s390/block/dasd_ioctl.c: add missing kfree
[S390] nss,initrd: kernel image and initrd must be in different segments
According to the SFI specification irq number 0xFF means device has no
interrupt or interrupt attached via GPIO.
Currently, we don't handle this special case and set irq field in
*_board_info structs to 255. It leads to confusion in some drivers.
Accelerometer driver tries to register interrupt 255, fails and prints
"Cannot get IRQ" to dmesg.
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Fri, 26 Aug 2011 16:01:30 +0000 (09:01 -0700)]
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6: (32 commits)
ALSA: hda: Conexant: Allow different output types to share DAC
ASoC: Correct element count for WM8996 sidetone HPF
ASoC: Tegra: wm8903 machine driver: Drop Ventana support
ASoC: Add samsung maintainer
ASoC: Add Springbank I/O card to Speyside Kconfig
ALSA: hda/conexant - Enable ADC-switching for auto-mic mode, too
ALSA: hda - Fix double-headphone/speaker paths for Cxt auto-parser
ALSA: hda - Update jack-sense info even when no automute is set
ALSA: hda - Fix output-path initialization for Realtek auto-parser
sound/soc/fsl/mpc8610_hpcd.c: add missing of_node_put
sound/soc/fsl/p1022_ds.c: add missing of_node_put
sound/soc/ep93xx/ep93xx-i2s.c: add missing kfree
sound/soc/kirkwood/kirkwood-i2s.c: add missing kfree
ASoC: soc-core: use GFP_KERNEL flag for kmalloc in snd_soc_cnew
sound/soc/fsl/fsl_dma.c: add missing of_node_put
ASoC: Clear completions from late WM8996 FLL lock IRQs
ASoC: Clear any outstanding WM8962 FLL lock completions before waiting
ASoC: Ensure we only run Speyside WM8962 bias level callbacks once
ASoC: Fix configuration of WM8996 input enables
ASoC: WM8996 record paths need AIFCLK
...
Liu Gang-B34182 [Thu, 25 Aug 2011 22:59:25 +0000 (15:59 -0700)]
arch/powerpc/sysdev/fsl_rio.c: correct IECSR register clear value
This bug causes the IECSR register clear failure. In this case, the RETE
(retry error threshold exceeded) interrupt will be generated and cannot be
cleared. So the related ISR may be called persistently.
The RETE bit in IECSR is cleared by writing a 1 to it.
Signed-off-by: Liu Gang <Gang.Liu@freescale.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Kumar Gala <galak@kernel.crashing.org> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
MyungJoo Ham [Thu, 25 Aug 2011 22:59:24 +0000 (15:59 -0700)]
drivers/rtc/rtc-s3c.c: allow multiple open / allow no-ioctl-open'ed rtc to have irq.
The previous rtc-s3c had two issues related with its IRQ.
1. Users cannot open rtc multiple times because an open operation
calls request_irq on the same IRQ. (e.g., two user processes wants to
open and read RTC time from rtc-s3c at the same time)
2. If alarm is set and no one has the rtc opened with filesystem
(either the alarm is set by kernel/boot-loader or user set an alarm and
closed rtc dev file), the pending bit is not cleared and no further
interrupt is invoked. When the alarm is used by the system itself such
as a resume from suspend-to-RAM or other Low-power modes/idle, this is
a critical issue.
This patch mitigates these issues by calling request_irq at probe and
free_irq at remove.
Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Acked-by: Kukjin Kim <kgene.kim@samsung.com> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: Changhwan Youn <chaos.youn@samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
MyungJoo Ham [Thu, 25 Aug 2011 22:59:22 +0000 (15:59 -0700)]
drivers/rtc/rtc-s3c.c: correct debug messages
RTC-S3C used to print out debug messages incorrectly. This patch
corrects incorrect outputs. (undecoded bcd numbers, incorrectly decoded
register values)
This patch affects the pr-debug messages only.
Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Acked-by: Kukjin Kim <kgene.kim@samsung.com> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: Changhwan Youn <chaos.youn@samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Axel Lin [Thu, 25 Aug 2011 22:59:21 +0000 (15:59 -0700)]
drivers/leds/leds-bd2802.c: bd2802_unregister_led_classdev() should unregister all registered leds
bd2802_unregister_led_classdev() should unregister all registered
instances of led_classdev class that had registered by
bd2802_register_led_classdev().
Signed-off-by: Axel Lin <axel.lin@gmail.com> Acked-by: Kim Kyuwon <q1.kim@samsung.com> Cc: Richard Purdie <rpurdie@rpsys.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
WANG Cong [Thu, 25 Aug 2011 22:59:20 +0000 (15:59 -0700)]
cris: add arch/cris/include/asm/serial.h
Fix the following build errors:
drivers/tty/serial/8250_early.c:160: error: 'BASE_BAUD' undeclared (first use in this function): 1 errors in 1 logs
drivers/tty/serial/8250_early.c:37:24: error: asm/serial.h: No such file or directory: 1 errors in 1 logs
I am not sure if (1843200 / 16) is suitable for cris, but most other
arch's define it as this value.
Signed-off-by: WANG Cong <xiyou.wangcong@gmail.com> Cc: Mikael Starvik <starvik@axis.com> Cc: Jesper Nilsson <jesper.nilsson@axis.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Axel Lin [Thu, 25 Aug 2011 22:59:19 +0000 (15:59 -0700)]
drivers/misc/fsa9480.c: fix a leak of the IRQ during init failure
Make sure we are passing the same cookie in all calls to
request_threaded_irq() and free_irq().
Signed-off-by: Axel Lin <axel.lin@gmail.com> Cc: Donggeun Kim <dg77.kim@samsung.com> Cc: Minkyu Kang <mk7.kang@samsung.com> Cc: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Axel Lin [Thu, 25 Aug 2011 22:59:18 +0000 (15:59 -0700)]
backlight: fix module alias prefix for adp8870_bl
This is an i2c driver, not a platform driver, thus use "i2c" prefix for
the module alias.
Signed-off-by: Axel Lin <axel.lin@gmail.com> Acked-by: Michael Hennerich <michael.hennerich@analog.com> Cc: Richard Purdie <rpurdie@rpsys.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Johannes Weiner [Thu, 25 Aug 2011 22:59:16 +0000 (15:59 -0700)]
memcg: fix hierarchical oom locking
Commit 79dfdaccd1d5 ("memcg: make oom_lock 0 and 1 based rather than
counter") tried to oom lock the hierarchy and roll back upon
encountering an already locked memcg.
The code is confused when it comes to detecting a locked memcg, though,
so it would fail and rollback after locking one memcg and encountering
an unlocked second one.
The result is that oom-locking hierarchies fails unconditionally and
that every oom killer invocation simply goes to sleep on the oom
waitqueue forever. The tasks practically hang forever without anyone
intervening, possibly holding locks that trip up unrelated tasks, too.
Signed-off-by: Johannes Weiner <jweiner@redhat.com> Acked-by: Michal Hocko <mhocko@suse.cz> Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Axel Lin [Thu, 25 Aug 2011 22:59:15 +0000 (15:59 -0700)]
leds: add missing include of linux/module.h
Add missing include of linux/module.h for drivers that use interfaces from
linux/module.h. This patch fixes build errors.
Signed-off-by: Axel Lin <axel.lin@gmail.com> Cc: Jonathan McDowell <noodles@earth.li> Acked-by: Kristoffer Ericson <kristoffer.ericson@gmail.com> Cc: Magnus Damm <damm@opensource.se> Cc: Richard Purdie <rpurdie@rpsys.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Axel Lin [Thu, 25 Aug 2011 22:59:14 +0000 (15:59 -0700)]
drivers/video/backlight/ep93xx_bl.c: add missing include of linux/module.h
ep93xx_bl.c uses interfaces from linux/module.h, so it should include
that file. This patch fixes build errors:
CC [M] drivers/video/backlight/ep93xx_bl.o
drivers/video/backlight/ep93xx_bl.c:138: error: 'THIS_MODULE' undeclared here (not in a function)
drivers/video/backlight/ep93xx_bl.c:158: error: expected declaration specifiers or '...' before string constant
drivers/video/backlight/ep93xx_bl.c:158: warning: data definition has no type or storage class
...
Signed-off-by: Axel Lin <axel.lin@gmail.com> Acked-by: H Hartley Sweeten <hsweeten@visionengravers.com> Cc: Ryan Mallon <rmallon@gmail.com> Cc: Richard Purdie <rpurdie@rpsys.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Replace/remove use of RIO v.1.2 registers/bits that are not
forward-compatible with newer versions of RapidIO specification.
RapidIO specification v.1.3 removed Write Port CSR, Doorbell CSR,
Mailbox CSR and Mailbox and Doorbell bits of the PEF CAR.
Use of removed (since RIO v.1.3) register bits affects users of
currently available 1.3 and 2.x compliant devices who may use not so
recent kernel versions.
Removing checks for unsupported bits makes corresponding routines
compatible with all versions of RapidIO specification. Therefore,
backporting makes stable kernel versions compliant with RIO v.1.3 and
later as well.
Signed-off-by: Alexandre Bounine <alexandre.bounine@idt.com> Cc: Kumar Gala <galak@kernel.crashing.org> Cc: Matt Porter <mporter@kernel.crashing.org> Cc: Li Yang <leoli@freescale.com> Cc: Thomas Moll <thomas.moll@sysgo.com> Cc: Chul Kim <chul.kim@idt.com> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Shaohua Li [Thu, 25 Aug 2011 22:59:12 +0000 (15:59 -0700)]
vmscan: clear ZONE_CONGESTED for zone with good watermark
ZONE_CONGESTED is only cleared in kswapd, but pages can be freed in any
task. It's possible ZONE_CONGESTED isn't cleared in some cases:
1. the zone is already balanced just entering balance_pgdat() for
order-0 because concurrent tasks free memory. In this case, later
check will skip the zone as it's balanced so the flag isn't cleared.
2. high order balance fallbacks to order-0. quote from Mel: At the
end of balance_pgdat(), kswapd uses the following logic;
If reclaiming at high order {
for each zone {
if all_unreclaimable
skip
if watermark is not met
order = 0
loop again
/* watermark is met */
clear congested
}
}
i.e. it clears ZONE_CONGESTED if it the zone is balanced. if not,
it restarts balancing at order-0. However, if the higher zones are
balanced for order-0, kswapd will miss clearing ZONE_CONGESTED as
that only happens after a zone is shrunk. This can mean that
wait_iff_congested() stalls unnecessarily.
This patch makes kswapd clear ZONE_CONGESTED during its initial
highmem->dma scan for zones that are already balanced.
Signed-off-by: Shaohua Li <shaohua.li@intel.com> Acked-by: Mel Gorman <mgorman@suse.de> Reviewed-by: Minchan Kim <minchan.kim@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
kernel/printk: do not turn off bootconsole in printk_late_init() if keep_bootcon
It seems that 7bf693951a8e ("console: allow to retain boot console via
boot option keep_bootcon") doesn't always achieve what it aims, as when
printk_late_init() runs it unconditionally turns off all boot consoles.
With this patch, I am able to see more messages on the boot console in
KVM guests than I can without, when keep_bootcon is specified.
I think it is appropriate for the relevant -stable trees. However, it's
more of an annoyance than a serious bug (ideally you don't need to keep
the boot console around as console handover should be working -- I was
encountering a situation where the console handover wasn't working and
not having the boot console available meant I couldn't see why).
Signed-off-by: Nishanth Aravamudan <nacc@us.ibm.com> Cc: David S. Miller <davem@davemloft.net> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Cc: Greg KH <gregkh@suse.de> Acked-by: Fabio M. Di Nitto <fdinitto@redhat.com> Cc: <stable@kernel.org> [2.6.39.x, 3.0.x] Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
projects / mirror_ubuntu-disco-kernel.git / log