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In __lock_acquire check_chain_key can turn off debug_locks, so check is
needed to assure proper return code.
Signed-off-by: Jarek Poplawski <jarkao2@o2.pl>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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The problem comes when ks0108/cfag12864b are built-in and no parallel port is
present. ks0108_init() is called first, as it should be, but fails to load
(as there is no parallel port to use).
After that, cfag12864b_init() gets called, without knowing anything about
ks0108 failed, and calls ks0108_writecontrol(), which dereferences an
uninitialized pointer.
Init order is OK, I think. The problem is how to stop cfag12864b_init() being
called if ks0108 failed to load. modprobe does it for us, but, how when
built-in?
Signed-off-by: Miguel Ojeda Sandonis <maxextreme@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Signed-off-by: "Aneesh Kumar K.V" <aneesh.kumar@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Flags from spin_lock_irqsave() are saved into global variable and restored
from it. My gut feeling this is very racy.
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Fixes http://bugzilla.kernel.org/show_bug.cgi?id=7810 - a silly
copy-paste bug introduced by the latest change.
Signed-off-by: Gerhard Dirschl <gd@spherenet.de>
Cc: Peter Osterlund <petero2@telia.com>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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There is no prompt for CONFIG_STACKTRACE, so FAULT_INJECTION cannot be
selected without LOCKDEP enabled. (found by Paolo 'Blaisorblade'
Giarrusso)
In order to fix such broken Kconfig dependency, this patch splits up the
stacktrace filter support for fault injection by new Kconfig option, which
enables to use fault injection on the architecture which doesn't have
general stacktrace support.
Cc: "Paolo 'Blaisorblade' Giarrusso" <blaisorblade@yahoo.it>
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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If the DIO write on FAT is expanding the size, it will be fail by -EINVAL,
because FAT can't handle it now.
This patch fallback it to the normal buffered-write and would return
success.
Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Acked-by: Jan Kara <jack@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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This patch lists all active probes in the system by scanning through
kprobe_table[]. It takes care of aggregate handlers and prints the type of
the probe. Letter "k" for kprobes, "j" for jprobes, "r" for kretprobes.
It also lists address of the instruction,its symbolic name(function name +
offset) and the module name. One can access this file through
/sys/kernel/debug/kprobes/list.
Output looks like this
=====================
llm40:~/a # cat /sys/kernel/debug/kprobes/list
c0169ae3 r sys_read+0x0
c0169ae3 k sys_read+0x0
c01694c8 k vfs_write+0x0
c0167d20 r sys_open+0x0
f8e658a6 k reiserfs_delete_inode+0x0 reiserfs
c0120f4a k do_fork+0x0
c0120f4a j do_fork+0x0
c0169b4a r sys_write+0x0
c0169b4a k sys_write+0x0
c0169622 r vfs_read+0x0
=================================
[akpm@linux-foundation.org: cleanup]
[ananth@in.ibm.com: sparc build fix]
Signed-off-by: Srinivasa DS <srinivasa@in.ibm.com>
Cc: Prasanna S Panchamukhi <prasanna@in.ibm.com>
Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
Cc: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com>
Signed-off-by: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Andrew noticed that unlocking the page before submitting all buffers for
writeout could cause problems if the IO completes before we've finished
messing around with the page buffers, and they subsequently get freed.
Even if there were no bug, it is a good idea to bring the error case
into line with the common case here.
Signed-off-by: Nick Piggin <npiggin@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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The current ipc shared memory code runs into several problems because it
does not quite use files like the rest of the kernel. With the option of
backing ipc shared memory with either hugetlbfs or ordinary shared memory
the problems got worse. With the added support for ipc namespaces things
behaved so unexpected that we now have several bad namespace reference
counting bugs when using what appears at first glance to be a reasonable
idiom.
So to attack these problems and hopefully make the code more maintainable
this patch simply uses the files provided by other parts of the kernel and
builds it's own files out of them. The shm files are allocated in do_shmat
and freed when their reference count drops to zero with their last unmap.
The file and vm operations that we don't want to implement or we don't
implement completely we just delegate to the operations of our backing
file.
This means that we now get an accurate shm_nattch count for we have a
hugetlbfs inode for backing store, and the shm accounting of last attach
and last detach time work as well.
This means that getting a reference to the ipc namespace when we create the
file and dropping the referenece in the release method is now safe and
correct.
This means we no longer need a special case for clearing VM_MAYWRITE
as our file descriptor now only has write permissions when we have
requested write access when calling shmat. Although VM_SHARED is now
cleared as well which I believe is harmless and is mostly likely a
minor bug fix.
By using the same set of operations for both the hugetlb case and regular
shared memory case shmdt is not simplified and made slightly more correct
as now the test "vma->vm_ops == &shm_vm_ops" is 100% accurate in spotting
all shared memory regions generated from sysvipc shared memory.
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Cc: Michal Piotrowski <michal.k.k.piotrowski@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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The alien cache is a per cpu per node array allocated for every slab on the
system. Currently we size this array for all nodes that the kernel does
support. For IA64 this is 1024 nodes. So we allocate an array with 1024
objects even if we only boot a system with 4 nodes.
This patch uses "nr_node_ids" to determine the number of possible nodes
supported by a hardware configuration and only allocates an alien cache
sized for possible nodes.
The initialization of nr_node_ids occurred too late relative to the bootstrap
of the slab allocator and so I moved the setup_nr_node_ids() into
free_area_init_nodes().
Signed-off-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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We frequently need the maximum number of possible processors in order to
allocate arrays for all processors. So far this was done using
highest_possible_processor_id(). However, we do need the number of
processors not the highest id. Moreover the number was so far dynamically
calculated on each invokation. The number of possible processors does not
change when the system is running. We can therefore calculate that number
once.
Signed-off-by: Christoph Lameter <clameter@sgi.com>
Cc: Frederik Deweerdt <frederik.deweerdt@gmail.com>
Cc: Neil Brown <neilb@suse.de>
Cc: Trond Myklebust <trond.myklebust@fys.uio.no>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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highest_possible_node_id() is currently used to calculate the last possible
node idso that the network subsystem can figure out how to size per node
arrays.
I think having the ability to determine the maximum amount of nodes in a
system at runtime is useful but then we should name this entry
correspondingly, it should return the number of node_ids, and the the value
needs to be setup only once on bootup. The node_possible_map does not
change after bootup.
This patch introduces nr_node_ids and replaces the use of
highest_possible_node_id(). nr_node_ids is calculated on bootup when the
page allocators pagesets are initialized.
[deweerdt@free.fr: fix oops]
Signed-off-by: Christoph Lameter <clameter@sgi.com>
Cc: Neil Brown <neilb@suse.de>
Cc: Trond Myklebust <trond.myklebust@fys.uio.no>
Signed-off-by: Frederik Deweerdt <frederik.deweerdt@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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allnoconfig:
mm/mincore.c: In function 'do_mincore':
mm/mincore.c:122: warning: unused variable 'entry'
Yet another entry in the why-macros-are-wrong encyclopedia.
Cc: Christoph Lameter <clameter@engr.sgi.com>
Cc: Nick Piggin <nickpiggin@yahoo.com.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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bind_zonelist() can create zero-length zonelist if there is a
memory-less-node. This patch checks the length of zonelist. If length is
0, returns -EINVAL.
tested on ia64/NUMA with memory-less-node.
Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Acked-by: Andi Kleen <ak@suse.de>
Cc: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Several people have reported failures in dynamic major device number handling
due to the recent changes in there to avoid handing out the local/experimental
majors.
Rolf reports that this is due to a gcc-4.1.0 bug.
The patch refactors that code a lot in an attempt to provoke the compiler into
behaving.
Cc: Rolf Eike Beer <eike-kernel@sf-tec.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Somehow we got the layout of the v3 superblock wrong, which causes crashes due
to overindexing of the buffer_head array in statfs on large fielsystems.
Cc: "Cedric Augonnet" <cedric.augonnet@gmail.com>
Cc: "Daniel Aragones" <danarag@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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fs/xfs/linux-2.6/xfs_super.c:903: warning: 'noinline' attribute ignored
Cc: David Chinner <dgc@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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If one of clear_bit, change_bit or set_bit is defined as a do { } while (0)
function usage of these functions in parenthesis like
(foo_bit(23, &var))
while be expaned to something like
(do { ... } while (0)}).
resulting in a build error. This patch removes the useless parenthesis.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Cc: Trond Myklebust <trond.myklebust@fys.uio.no>
Cc: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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* 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm:
[ARM] 4165/1: S3C24XX: Select CONFIG_NO_IOPORT
[ARM] Fix s3c2410 ALSA audio for typedef elimination
[ARM] Fix ARM AACI ALSA driver
[ARM] fix mach-at91 build breakage
[ARM] Fix jornada720 build errors
[ARM] Fix iop13xx build error
[ARM] Fix build error caused by move of apm
[ARM] 4223/1: ixdp2351 : Fix for a define error
[ARM] 4187/1: iop: unify time implementation across iop32x, iop33x, and iop13xx
[ARM] 4186/1: iop: remove cp6_enable/disable routines
[ARM] 4185/2: entry: introduce get_irqnr_preamble and arch_ret_to_user
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master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6
* 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6: (21 commits)
natsemi: Support Aculab E1/T1 PMXc cPCI carrier cards
natsemi: Add support for using MII port with no PHY
skge: race with workq and RTNL
Replace local random function with random32()
s2io: RTNL and flush_scheduled_work deadlock
8139too: RTNL and flush_scheduled_work deadlock
sis190: RTNL and flush_scheduled_work deadlock
r8169: RTNL and flush_scheduled_work deadlock
[PATCH] ieee80211softmac: Fix setting of initial transmit rates
[PATCH] bcm43xx: OFDM fix for rev 1 cards
[PATCH] bcm43xx: Fix for 4311 and 02/07/07 specification changes
[PATCH] prism54: correct assignment of DOT1XENABLE in WE-19 codepaths
[PATCH] zd1211rw: Readd zd_addr_t cast
[PATCH] bcm43xx: Fix for oops on resume
[PATCH] bcm43xx: Ignore ampdu status reports
[PATCH] wavelan: Use ARRAY_SIZE macro when appropriate
[PATCH] hostap: Use ARRAY_SIZE macro when appropriate
[PATCH] misc-wireless: Use ARRAY_SIZE macro when appropriate
[PATCH] ipw2100: Use ARRAY_SIZE macro when appropriate
[PATCH] bcm43xx: Janitorial change - remove two unused variables
...
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* 'for-linus' of git://git.o-hand.com/linux-rpurdie-backlight:
backlight: Remove bogus SYSFS dependency
backlight: simplify corgi_bl locking
backlight: Separate backlight properties from backlight ops pointers
backlight: Clean up pmac_backlight handling
backlight: Improve backlight selection for fbdev drivers
backlight: Rework backlight/fb interaction simplifying, lots
backlight: Remove unneeded backlight update_status calls
backlight: Remove uneeded update_status call from chipsfb.c
backlight/fbcon: Add FB_EVENT_CONBLANK
backlight: Fix Kconfig entries
backlight: Remove uneeded nvidia set_power calls
backlight: Convert semaphore -> mutex
backlight: Fix external uses of backlight internal semaphore
backlight: Minor code cleanups for hp680_bl.c
backlight: Minor code cleanups for corgi_bl.c
backlight: Remove excessive (un)likelys
backlight: Remove unneeded owner field
backlight: Fix error handling
backlight: Add Frontpath ProGear HX1050+ driver
backlight: Add maintainer entry
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The rename of the AT91 subtree from mach-at91rm9200 to mach-at91
(to accomodate at91sam926x processors) was incomplete. It needs
this patch to be able to build again.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus:
[NET] Eliminate user-selectable CONFIG_MV643XX_ETH_[012]
[MIPS] Drop __init from init_8259A()
[MIPS] Fix Kconfig typo bug
[MIPS] Fix double signal on trap and break instruction
[MIPS] sigset_32 has been made redundand by compat_sigset_t.
[MIPS] emma2rh: Remove needless <asm/i8259.h> inclusion.
[MIPS] Add MTD device support for Cobalt
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tty_register_driver: Remove incorrect and superfluous cast (expected and passed
types are both const char *)
Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Acked-by: Alan Cox <alan@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Remove the use of CONFIG_MV643XX_ETH_[012] variables on most platforms.
Instead, platform-specific code enables the ports supported by the
hardware. After this patch, these config variables are only used in
arch/ppc, so also move them from drivers/net/Kconfig to arch/ppc/Kconfig.
Signed-off-by: Dale Farnsworth <dale@farnsworth.org>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Acked-by: Jeff Garzik <jeff@garzik.org>
Cc: Paul Mackerras <paulus@samba.org>
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init_8259A() is called from i8259A_resume() so should not be marked as
__init. And add some tests for whether 8259A was already initialized
or not.
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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This commit broke gdb, since any BREAK or TRAP instruction cause SIGSEGV.
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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This patch has added MTD device support for Cobalt.
Moreover, removes old type FlashROM support.
Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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On S3C24XX architecture, select CONFIG_NO_IOPORT
as we only have memory based IO.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6 into upstream
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Aculab E1/T1 PMXc cPCI carrier card cards present a natsemi on the cPCI
bus with an oversized EEPROM using a direct MII<->MII connection with no
PHY. This patch adds a new device table entry supporting these cards.
Signed-Off-By: Mark Brown <broonie@sirena.org.uk>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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This patch provides code paths which allow the natsemi driver to use the
external MII port on the chip but ignore any PHYs that may be attached to it.
The link state will be left as it was when the driver started and can be
configured via ethtool. Any PHYs that are present can be accessed via the MII
ioctl()s.
This is useful for systems where the device is connected without a PHY
or where either information or actions outside the scope of the driver
are required in order to use the PHYs.
Signed-Off-By: Mark Brown <broonie@sirena.org.uk>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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If a workqueue function that needs RTNL is running when skge_down
is called then a deadlock is possible. Fix by only clearing the timer,
and handling the flush_scheduled_work on removal. This work queue is only
ever used for the old fiber based boards.
Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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Mantra: don't use flush_scheduled_work with RTNL held.
Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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Your usual dont-flush_scheduled_work-with-RTNL-held stuff.
It is a bit different here since the thread runs permanently
or is only occasionally kicked for recovery depending on the
hardware revision.
Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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flush_scheduled_work() in net_device->close has a slight tendency
to deadlock with tasks on the workqueue that hold RTNL.
rtl8169_close/down simply need the recovery tasks to not meddle
with the hardware while the device is going down.
Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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CC [M] sound/arm/aaci.o
sound/arm/aaci.c:729: error: parse error before '*' token
sound/arm/aaci.c:731: warning: function declaration isn't a prototype
...
sound/arm/aaci.c:786: error: parse error before '*' token
sound/arm/aaci.c:786: warning: function declaration isn't a prototype
...
sound/arm/aaci.c:827: error: parse error before '*' token
sound/arm/aaci.c:828: warning: function declaration isn't a prototype
...
sound/arm/aaci.c:845: error: parse error before "aaci_capture_ops"
sound/arm/aaci.c:845: warning: type defaults to `int' in declaration of `aaci_capture_ops'
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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The rename of the AT91 subtree from mach-at91rm9200 to mach-at91
(to accomodate at91sam926x processors) was incomplete. It needs
this patch to be able to build again.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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kernel/built-in.o: In function `pm_suspend':
utsname_sysctl.c:(.text+0x23008): multiple definition of `pm_suspend'
arch/arm/mach-sa1100/built-in.o:arch/arm/mach-sa1100/sleep.S:(.text+0xf68): first defined here
arm-linux-ld: Warning: size of symbol `pm_suspend' changed from 20 in arch/arm/mach-sa1100/built-in.o to 44 in kernel/built-in.o
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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CC arch/arm/mach-iop13xx/setup.o
arch/arm/mach-iop13xx/setup.c: In function 'iq8134x_probe_flash_size':
arch/arm/mach-iop13xx/setup.c:210: warning: implicit declaration of function 'ioremap'
arch/arm/mach-iop13xx/setup.c:210: warning: initialization makes pointer from integer without a cast
arch/arm/mach-iop13xx/setup.c:218: warning: implicit declaration of function 'writew'
arch/arm/mach-iop13xx/setup.c:222: warning: implicit declaration of function 'readb'
arch/arm/mach-iop13xx/setup.c:231: warning: implicit declaration of function 'iounmap'
LD .tmp_vmlinux1
arch/arm/mach-iop13xx/built-in.o: In function `iop13xx_platform_init':
iq81340mc.c:(.init.text+0x150): undefined reference to `ioremap'
iq81340mc.c:(.init.text+0x21c): undefined reference to `writew'
iq81340mc.c:(.init.text+0x24c): undefined reference to `writew'
iq81340mc.c:(.init.text+0x254): undefined reference to `iounmap'
iq81340mc.c:(.init.text+0x2c4): undefined reference to `readb'
iq81340mc.c:(.init.text+0x2e8): undefined reference to `readb'
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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CC arch/arm/common/sharpsl_pm.o
arch/arm/common/sharpsl_pm.c:30:31: error: asm/apm-emulation.h: No such file or directory
...
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Remove a bogus SYSFS dependency from the backlight class
Signed-off-by: Richard Purdie <rpurdie@rpsys.net>
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