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Johannes Weiner [Tue, 24 Apr 2012 18:22:33 +0000 (20:22 +0200)]
mm: memcg: move pc lookup point to commit_charge()
None of the callsites actually need the page_cgroup descriptor
themselves, so just pass the page and do the look up in there.
We already had two bugs (
6568d4a 'mm: memcg: update the correct soft
limit tree during migration' and 'memcg: fix Bad page state after
replace_page_cache') where the passed page and pc were not referring
to the same page frame.
Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: Hugh Dickins <hughd@google.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
David Miller [Wed, 25 Apr 2012 20:10:50 +0000 (16:10 -0400)]
mm: nobootmem: Correct alloc_bootmem semantics.
The comments above __alloc_bootmem_node() claim that the code will
first try the allocation using 'goal' and if that fails it will
try again but with the 'goal' requirement dropped.
Unfortunately, this is not what the code does, so fix it to do so.
This is important for nobootmem conversions to architectures such
as sparc where MAX_DMA_ADDRESS is infinity.
On such architectures all of the allocations done by generic spots,
such as the sparse-vmemmap implementation, will pass in:
__pa(MAX_DMA_ADDRESS)
as the goal, and with the limit given as "-1" this will always fail
unless we add the appropriate fallback logic here.
Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Tue, 24 Apr 2012 15:22:25 +0000 (08:22 -0700)]
Merge git://git./linux/kernel/git/steve/gfs2-3.0-fixes
Pull gfs2 fixes from Steven Whitehouse.
* git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-3.0-fixes:
GFS2: Instruct DLM to avoid queue convert slowdown
Linus Torvalds [Tue, 24 Apr 2012 15:20:28 +0000 (08:20 -0700)]
Merge tag 'hsi_fixes_for_3.4' of git://gitorious.org/kernel-hsi/kernel-hsi
Pull HSI fixes and ABI documentation from Carlos Chinea
* tag 'hsi_fixes_for_3.4' of git://gitorious.org/kernel-hsi/kernel-hsi:
HSI: Add HSI ABI documentation
HSI: hsi_char: Remove max_data_size from sysfs
HSI: hsi: Rework hsi_event interface
HSI: hsi: Remove controllers and ports from the bus
HSI: hsi: Fix error path cleanup on client registration
HSI: hsi: Rework hsi_controller release
Bob Peterson [Tue, 10 Apr 2012 18:45:24 +0000 (14:45 -0400)]
GFS2: Instruct DLM to avoid queue convert slowdown
This patch instructs DLM to prevent an "in place" conversion, where the
lock just stays on the granted queue, and instead forces the conversion to
the back of the convert queue. This is done on upward conversions only.
This is useful in cases where, for example, a lock is frequently needed in
PR on one node, but another node needs it temporarily in EX to update it.
This may happen, for example, when the rindex is being updated by gfs2_grow.
The gfs2_grow needs to have the lock in EX, but the other nodes need to
re-read it to retrieve the updates. The glock is already granted in PR on
the non-growing nodes, so this prevents them from continually re-granting
the lock in PR, and forces the EX from gfs2_grow to go through.
Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
Linus Torvalds [Tue, 24 Apr 2012 02:52:00 +0000 (19:52 -0700)]
Merge tag 'ext4_for_linus' of git://git./linux/kernel/git/tytso/ext4
Pull ext4 bug fixes from Ted Ts'o:
"These are two low-risk bug fixes for ext4, fixing a compile warning
and a potential deadlock."
* tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
super.c: unused variable warning without CONFIG_QUOTA
jbd2: use GFP_NOFS for blkdev_issue_flush
Linus Torvalds [Tue, 24 Apr 2012 02:50:48 +0000 (19:50 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/rkuo/linux-hexagon-kernel
Pull Hexagon fixes from Richard Kuo:
"It's mostly compile fixes and the Hexagon portion of a CPU hotplug
patch set."
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rkuo/linux-hexagon-kernel:
hexagon: add missing cpu.h include
hexagon/CPU hotplug: Add missing call to notify_cpu_starting()
hexagon: use renamed tick_nohz_idle_* functions
Hexagon: misc compile warning/error cleanup due to missing headers
Linus Torvalds [Tue, 24 Apr 2012 02:45:19 +0000 (19:45 -0700)]
Merge branch 'rc-fixes' of git://git./linux/kernel/git/mmarek/kbuild
Pull build system failure fix from Michal Marek:
"This fixes build failure with newer gcc that adds some internal
symbols that end in "__mod_*_device_table", but are not actually the
tables themselves."
* 'rc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild:
Fix modpost failures in fedora 17
Eldad Zack [Sun, 22 Apr 2012 15:50:52 +0000 (17:50 +0200)]
super.c: unused variable warning without CONFIG_QUOTA
sb info is only checked with quota support.
fs/ext4/super.c: In function ‘parse_options’:
fs/ext4/super.c:1600:23: warning: unused variable ‘sbi’ [-Wunused-variable]
Signed-off-by: Eldad Zack <eldad@fogrefinery.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Shaohua Li [Fri, 13 Apr 2012 02:27:35 +0000 (10:27 +0800)]
jbd2: use GFP_NOFS for blkdev_issue_flush
flush request is issued in transaction commit code path, so looks using
GFP_KERNEL to allocate memory for flush request bio falls into the classic
deadlock issue. I saw btrfs and dm get it right, but ext4, xfs and md are
using GFP.
Signed-off-by: Shaohua Li <shli@fusionio.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Reviewed-by: Jan Kara <jack@suse.cz>
Cc: stable@vger.kernel.org
Linus Torvalds [Tue, 24 Apr 2012 01:25:01 +0000 (18:25 -0700)]
Merge tag 'md-3.4-fixes' of git://neil.brown.name/md
Pull a few more md bug fixes from NeilBrown:
"2 are tagged for -stable, one being for a fairly serious bug that can
corrupt metadata and make it hard to recovery an array. The other is
for a more recent regression since 3.3"
* tag 'md-3.4-fixes' of git://neil.brown.name/md:
md: fix possible corruption of array metadata on shutdown.
md: don't call ->add_disk unless there is good reason.
DM RAID: Use safe version of rdev_for_each
Linus Torvalds [Tue, 24 Apr 2012 01:22:42 +0000 (18:22 -0700)]
Merge tag 'dlm-fixes-3.4' of git://git./linux/kernel/git/teigland/linux-dlm
Pull dlm fixes from David Teigland:
"This includes one short patch fixing the behavior of the QUECVT flag,
which the gfs2 folks are waiting on."
* tag 'dlm-fixes-3.4' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/linux-dlm:
dlm: fix QUECVT when convert queue is empty
Hugh Dickins [Mon, 23 Apr 2012 18:14:50 +0000 (11:14 -0700)]
mm: fix s390 BUG by __set_page_dirty_no_writeback on swap
Mel reports a BUG_ON(slot == NULL) in radix_tree_tag_set() on s390
3.0.13: called from __set_page_dirty_nobuffers() when page_remove_rmap()
tries to transfer dirty flag from s390 storage key to struct page and
radix_tree.
That would be because of reclaim's shrink_page_list() calling
add_to_swap() on this page at the same time: first PageSwapCache is set
(causing page_mapping(page) to appear as &swapper_space), then
page->private set, then tree_lock taken, then page inserted into
radix_tree - so there's an interval before taking the lock when the
radix_tree slot is empty.
We could fix this by moving __add_to_swap_cache()'s spin_lock_irq up
before the SetPageSwapCache. But a better fix is simply to do what's
five years overdue: Ken Chen introduced __set_page_dirty_no_writeback()
(if !PageDirty TestSetPageDirty) for tmpfs to skip all the radix_tree
overhead, and swap is just the same - it ignores the radix_tree tag, and
does not participate in dirty page accounting, so should be using
__set_page_dirty_no_writeback() too.
s390 testing now confirms that this does indeed fix the problem.
Reported-by: Mel Gorman <mgorman@suse.de>
Signed-off-by: Hugh Dickins <hughd@google.com>
Acked-by: Mel Gorman <mgorman@suse.de>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Rik van Riel <riel@redhat.com>
Cc: Ken Chen <kenchen@google.com>
Cc: stable@vger.kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
NeilBrown [Tue, 24 Apr 2012 00:23:16 +0000 (10:23 +1000)]
md: fix possible corruption of array metadata on shutdown.
commit
c744a65c1e2d59acc54333ce8
md: don't set md arrays to readonly on shutdown.
removed the possibility of a 'BUG' when data is written to an array
that has just been switched to read-only, but also introduced the
possibility that the array metadata could be corrupted.
If, when md_notify_reboot gets the mddev lock, the array is
in a state where it is assembled but hasn't been started (as can
happen if the personality module is not available, or in other unusual
situations), then incorrect metadata will be written out making it
impossible to re-assemble the array.
So only call __md_stop_writes() if the array has actually been
activated.
This patch is needed for any stable kernel which has had the above
commit applied.
Cc: stable@vger.kernel.org
Reported-by: Christoph Nelles <evilazrael@evilazrael.de>
Signed-off-by: NeilBrown <neilb@suse.de>
NeilBrown [Tue, 24 Apr 2012 00:23:14 +0000 (10:23 +1000)]
md: don't call ->add_disk unless there is good reason.
Commit
7bfec5f35c68121e7b18
md/raid5: If there is a spare and a want_replacement device, start replacement.
cause md_check_recovery to call ->add_disk much more often.
Instead of only when the array is degraded, it is now called whenever
md_check_recovery finds anything useful to do, which includes
updating the metadata for clean<->dirty transition.
This causes unnecessary work, and causes info messages from ->add_disk
to be reported much too often.
So refine md_check_recovery to only do any actual recovery checking
(including ->add_disk) if MD_RECOVERY_NEEDED is set.
This fix is suitable for 3.3.y:
Cc: stable@vger.kernel.org
Reported-by: Jan Ceuleers <jan.ceuleers@computer.org>
Signed-off-by: NeilBrown <neilb@suse.de>
Jonathan Brassow [Tue, 24 Apr 2012 00:23:13 +0000 (10:23 +1000)]
DM RAID: Use safe version of rdev_for_each
Fix segfault caused by using rdev_for_each instead of rdev_for_each_safe
Commit
dafb20fa34320a472deb7442f25a0c086e0feb33 mistakenly replaced a safe
iterator with an unsafe one when making some macro changes.
Signed-off-by: Jonathan Brassow <jbrassow@redhat.com>
Signed-off-by: NeilBrown <neilb@suse.de>
Richard Kuo [Thu, 12 Apr 2012 20:57:33 +0000 (15:57 -0500)]
hexagon: add missing cpu.h include
Signed-off-by: Richard Kuo <rkuo@codeaurora.org>
Srivatsa S. Bhat [Thu, 22 Mar 2012 11:28:25 +0000 (16:58 +0530)]
hexagon/CPU hotplug: Add missing call to notify_cpu_starting()
The scheduler depends on receiving the CPU_STARTING notification, without
which we end up into a lot of trouble. So add the missing call to
notify_cpu_starting() in the bringup code.
Signed-off-by: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>
Signed-off-by: Richard Kuo <rkuo@codeaurora.org>
Richard Kuo [Wed, 7 Mar 2012 21:27:23 +0000 (15:27 -0600)]
hexagon: use renamed tick_nohz_idle_* functions
Signed-off-by: Richard Kuo <rkuo@codeaurora.org>
Richard Kuo [Tue, 15 Nov 2011 22:58:11 +0000 (16:58 -0600)]
Hexagon: misc compile warning/error cleanup due to missing headers
Fixed warnings/errors for EXPORT_SYMBOL, linux_binprm, elf related
defines
Signed-off-by: Richard Kuo <rkuo@codeaurora.org>
David Teigland [Wed, 4 Apr 2012 14:49:15 +0000 (09:49 -0500)]
dlm: fix QUECVT when convert queue is empty
The QUECVT flag should not prevent conversions from
being granted immediately when the convert queue is
empty.
Signed-off-by: David Teigland <teigland@redhat.com>
Carlos Chinea [Fri, 13 Apr 2012 12:55:13 +0000 (15:55 +0300)]
HSI: Add HSI ABI documentation
Adds sysfs HSI framework documentation
Signed-off-by: Carlos Chinea <carlos.chinea@nokia.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Carlos Chinea [Fri, 13 Apr 2012 13:03:03 +0000 (16:03 +0300)]
HSI: hsi_char: Remove max_data_size from sysfs
Remove max_data_size sysfs entry. Otherwise is possible
to have a buffer overrun if its value is increased after
the device is open.
Signed-off-by: Carlos Chinea <carlos.chinea@nokia.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Carlos Chinea [Wed, 11 Apr 2012 07:55:53 +0000 (10:55 +0300)]
HSI: hsi: Rework hsi_event interface
Remove custom hack and make use of the notifier chain interfaces for
delivering events from the ports to their associated clients.
Clients that want to receive port events need to register their callbacks
using hsi_register_port_event(). The callbacks can be called in interrupt
context. Use hsi_unregestier_port_event() to undo the registration.
Signed-off-by: Carlos Chinea <carlos.chinea@nokia.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Carlos Chinea [Tue, 10 Apr 2012 12:11:24 +0000 (15:11 +0300)]
HSI: hsi: Remove controllers and ports from the bus
HSI controllers and ports do not belong to the HSI bus.
Those devices are not supposed to have a driver attached to them.
Signed-off-by: Carlos Chinea <carlos.chinea@nokia.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Carlos Chinea [Wed, 11 Apr 2012 08:01:11 +0000 (11:01 +0300)]
HSI: hsi: Fix error path cleanup on client registration
HSI client structure should be freed on error path after
calling device_registration by dropping a reference to it.
Signed-off-by: Carlos Chinea <carlos.chinea@nokia.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Carlos Chinea [Wed, 4 Apr 2012 11:11:45 +0000 (14:11 +0300)]
HSI: hsi: Rework hsi_controller release
Use the proper release mechanism for hsi_controller and
hsi_ports structures. Free the structures through their
associated device release callbacks.
Signed-off-by: Carlos Chinea <carlos.chinea@nokia.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Linus Torvalds [Mon, 23 Apr 2012 04:19:15 +0000 (21:19 -0700)]
Merge branch 'fixes' of git://git.linaro.org/people/rmk/linux-arm
Pull ARM fixes from Russell King:
"Here's my usual Sunday push, just for one revert which PeterZ hollered
about after last weeks push. Other than that, all seems strangely
quiet as far as fixes go in non-platform ARM land at the moment."
* 'fixes' of git://git.linaro.org/people/rmk/linux-arm:
Revert "ARM: 7359/2: smp_twd: Only wait for reprogramming on active cpus"
Linus Torvalds [Mon, 23 Apr 2012 04:07:51 +0000 (21:07 -0700)]
Merge branch 'merge' of git://git./linux/kernel/git/benh/powerpc
Pull powerpc fixes from Benjamin Herrenschmidt:
"Here are a few fixes for powerpc. Note the addition to the generic
irq.h. This is part of a 3-patches regression fix for mpic due to
changes in how IRQ_TYPE_NONE is being handled. Thomas agreed to the
addition of the new IRQ_TYPE_DEFAULT contant, however he hasn't
replied with an Ack to the actual patch yet. I don't to wait much
longer with these patches tho."
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc:
powerpc/mpic: Properly set default triggers
irq: Add IRQ_TYPE_DEFAULT for use by PIC drivers
powerpc/mpic: Fix confusion between hw_irq and virq
powerpc/pmac: Don't add_timer() twice
powerpc/eeh: Fix crash caused by null eeh_dev
powerpc/mpc85xx: add MPIC message dts node
powerpc/mpic_msgr: fix offset error when setting mer register
powerpc/mpic_msgr: add lock for MPIC message global variable
powerpc/mpic_msgr: fix compile error when SMP disabled
powerpc: fix build when CONFIG_BOOKE_WDT is enabled
powerpc/85xx: don't call of_platform_bus_probe() twice
Linus Torvalds [Mon, 23 Apr 2012 04:02:57 +0000 (21:02 -0700)]
Merge git://git./linux/kernel/git/davem/net
Pull networking fixes from David Miller:
1) Fix namespace init and cleanup in phonet to fix some oopses, from
Eric W. Biederman.
2) Missing kfree_skb() in AF_KEY, from Julia Lawall.
3) Refcount leak and source address handling fix in l2tp from James
Chapman.
4) Memory leak fix in CAIF from Tomasz Gregorek.
5) When routes are cloned from ipv6 addrconf routes, we don't process
expirations properly. Fix from Gao Feng.
6) Fix panic on DMA errors in atl1 driver, from Tony Zelenoff.
7) Only enable interrupts in 8139cp driver after we've registered the
IRQ handler. From Jason Wang.
8) Fix too many reads of KS_CIDER register in ks8851 during probe,
fixing crashes on spurious interrupts. From Matt Renzelmann.
9) Missing include in ath5k driver and missing iounmap on probe
failure, from Jonathan Bither.
10) Fix RX packet handling in smsc911x driver, from Will Deacon.
11) Fix ixgbe WoL on fiber by leaving the laser on during shutdown.
12) ks8851 needs MAX_RECV_FRAMES increased otherwise the internal MAC
buffers are easily overflown. Fix from Davide Cimingahi.
13) Fix memory leaks in peak_usb CAN driver, from Jesper Juhl.
14) gred packet scheduler can dump in WRED more when doing a netlink
dump. Fix from David Ward.
15) Fix MTU in USB smsc75xx driver, from Stephane Fillod.
16) Dummy device needs ->ndo_uninit handler to properly handle
->ndo_init failures. From Hiroaki SHIMODA.
17) Fix TX fragmentation in ath9k driver, from Sujith Manoharan.
18) Missing RTNL lock in ixgbe PM resume, from Benjamin Poirier.
19) Missing iounmap in farsync WAN driver, from Julia Lawall.
20) With LRO/GRO, tcp_grow_window() is easily tricked into not growing
the receive window properly, and this hurts performance. Fix from
Eric Dumazet.
21) Network namespace init failure can leak net_generic data, fix from
Julian Anastasov.
22) Fix skb_over_panic due to mis-accounting in TCP for partially ACK'd
SKBs. From Eric Dumazet.
23) New IDs for qmi_wwan driver, from Bjørn Mork.
24) Fix races in ax25_exit(), from Eric W. Biederman.
25) IPV6 TCP doesn't handle TCP_MAXSEG socket option properly, copy over
logic from the IPV4 side. From Neal Cardwell.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (59 commits)
tcp: fix TCP_MAXSEG for established IPv6 passive sockets
drivers/net: Do not free an IRQ if its request failed
drop_monitor: allow more events per second
ks8851: Fix request_irq/free_irq mismatch
net/hyperv: Adding cancellation to ensure rndis filter is closed
ks8851: Fix mutex deadlock in ks8851_net_stop()
net ax25: Reorder ax25_exit to remove races.
icplus: fix interrupt for IC+ 101A/G and 1001LF
net: qmi_wwan: support Sierra Wireless MC77xx devices in QMI mode
bnx2x: off by one in bnx2x_ets_e3b0_sp_pri_to_cos_set()
ksz884x: don't copy too much in netdev_set_mac_address()
tcp: fix retransmit of partially acked frames
netns: do not leak net_generic data on failed init
net/sock.h: fix sk_peek_off kernel-doc warning
tcp: fix tcp_grow_window() for large incoming frames
drivers/net/wan/farsync.c: add missing iounmap
davinci_mdio: Fix MDIO timeout check
ipv6: clean up rt6_clean_expires
ipv6: fix rt6_update_expires
arcnet: rimi: Fix device name in debug output
...
Benjamin Herrenschmidt [Thu, 19 Apr 2012 17:30:57 +0000 (17:30 +0000)]
powerpc/mpic: Properly set default triggers
This gets rid of the unused default senses array, and replaces the
incorrect use of IRQ_TYPE_NONE with the new IRQ_TYPE_DEFAULT for
the initial set_trigger() call when mapping an interrupt.
This in turn makes us read the HW state and update the irq desc
accordingly.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Benjamin Herrenschmidt [Thu, 19 Apr 2012 17:29:42 +0000 (17:29 +0000)]
irq: Add IRQ_TYPE_DEFAULT for use by PIC drivers
This is meant typically to allow a PIC driver's irq domain map() callback
to establish sane defaults for the interrupt (and make sure that the HW
and the irq_desc are in sync as far as the trigger is concerned).
The irq core may not call the set_trigger callback if it thinks the
trigger is already set to the right setting, so we need to ensure new
descriptors are properly synchronized with the hardware.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Benjamin Herrenschmidt [Thu, 19 Apr 2012 17:29:34 +0000 (17:29 +0000)]
powerpc/mpic: Fix confusion between hw_irq and virq
mpic_is_ipi() takes a virq and immediately converts it to a hw_irq.
However, one of the two call sites calls it with a ... hw_irq. The
other call site also happens to have the hw_irq at hand, so let's
change it to just take that as an argument. Also change mpic_is_tm()
for consistency.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Benjamin Herrenschmidt [Wed, 18 Apr 2012 22:16:48 +0000 (22:16 +0000)]
powerpc/pmac: Don't add_timer() twice
If the interrupt and the timeout happen roughly at the same
time, we can get into a situation where the timer function
is run while the interrupt has already been processed. In
this case, the timer function might end up doing an add_timer
on an already pending timer, causing a BUG_ON() to trigger.
Instead, just skip the whole timeout operation if we see that
the timer is pending. The spinlock ensures that the only way
that happens is if we already started a new operation and thus
the timeout can be ignored.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Gavin Shan [Mon, 16 Apr 2012 19:55:39 +0000 (19:55 +0000)]
powerpc/eeh: Fix crash caused by null eeh_dev
The problem was reported by Anton Blanchard. While EEH error
happened to the PCI device without the corresponding device
driver, kernel crash was seen. Eventually, I successfully
reproduced the problem on Firebird-L machine with utility
"errinjct". Initially, the device driver for Emulex ethernet
MAC has been disabled from .config and force data parity on
the Emulex ethernet MAC with help of "errinjct". Eventually,
I saw the kernel crash after issueing couple of "lspci -v"
command.
The root cause behind is that the PCI device, including the
reference to the corresponding eeh device, will be removed
from the system while EEH does recovery. Afterwards, the
PCI device will be probed again and added into the system
accordingly. So it's not safe to retrieve the eeh device from
the corresponding PCI device after the PCI device has been removed
and not added again.
The patch fixes the issue and retrieve the eeh device from OF node
instead of PCI device after the PCI device has been removed.
Signed-off-by: Gavin Shan <shangw@linux.vnet.ibm.com>
Tested-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Benjamin Herrenschmidt [Mon, 23 Apr 2012 00:55:20 +0000 (10:55 +1000)]
Merge remote-tracking branch 'kumar/merge' into merge
Neal Cardwell [Sun, 22 Apr 2012 09:45:47 +0000 (09:45 +0000)]
tcp: fix TCP_MAXSEG for established IPv6 passive sockets
Commit
f5fff5d forgot to fix TCP_MAXSEG behavior IPv6 sockets, so IPv6
TCP server sockets that used TCP_MAXSEG would find that the advmss of
child sockets would be incorrect. This commit mirrors the advmss logic
from tcp_v4_syn_recv_sock in tcp_v6_syn_recv_sock. Eventually this
logic should probably be shared between IPv4 and IPv6, but this at
least fixes this issue.
Signed-off-by: Neal Cardwell <ncardwell@google.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Linus Torvalds [Sat, 21 Apr 2012 21:47:52 +0000 (14:47 -0700)]
Linux 3.4-rc4
Lee Jones [Thu, 19 Apr 2012 10:36:33 +0000 (10:36 +0000)]
drivers/net: Do not free an IRQ if its request failed
Refrain from attempting to free an interrupt line if the request
fails and hence, there is no IRQ to free.
CC: netdev@vger.kernel.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Yong Zhang [Thu, 19 Apr 2012 20:28:32 +0000 (20:28 +0000)]
sparc32,leon: add notify_cpu_starting()
Otherwise cpu_active_mask will not set, which lead to other issue.
Signed-off-by: Yong Zhang <yong.zhang0@gmail.com>
Signed-off-by: Konrad Eisele <konrad@gaisler.com>
Reviewed-by: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Eric Dumazet [Thu, 19 Apr 2012 07:16:21 +0000 (07:16 +0000)]
drop_monitor: allow more events per second
It seems there is a logic error in trace_drop_common(), since we store
only 64 drops, even if they are from same location.
This fix is a one liner, but we probably need more work to avoid useless
atomic dec/inc
Now I can watch 1 Mpps drops through dropwatch...
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Neil Horman <nhorman@tuxdriver.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Matt Renzelmann [Thu, 19 Apr 2012 07:17:17 +0000 (07:17 +0000)]
ks8851: Fix request_irq/free_irq mismatch
The dev_id parameter passed to free_irq needs to match the one passed
to the corresponding request_irq.
Signed-off-by: Matt Renzelmann <mjr@cs.wisc.edu>
Acked-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Linus Torvalds [Sat, 21 Apr 2012 19:45:52 +0000 (12:45 -0700)]
Merge tag 'fixes-for-linus' of git://git./linux/kernel/git/arm/arm-soc
Pull "ARM: SoC fixes" from Olof Johansson:
* at91, ux500, imx, omap and bcmring:
- at91 fixes for =m driver build issues, irqdomain fixes and config
dependency fixes
- ux500 kconfig dependency fixes and a smp wakeup bugfix
- imx idle bugfix and build fix due to irq domain changes
- omap uart pinmux fixes, softreset regression revert and misc fixes
- bcmring build error regression fix
* ux500 and imx had some small defconfig updates in this branch
* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (27 commits)
ARM: bcmring: fix UART declarations
ARM: imx: Fix imx5 idle logic bug
ARM: imx27-dt: Fix build due to removal of irq_domain_add_simple()
ARM: imx_v4_v5_defconfig: Add support for CONFIG_REGULATOR_FIXED_VOLTAGE
ARM: OMAP1: DMTIMER: fix broken timer clock source selection
ARM: OMAP: serial: Fix the ocp smart idlemode handling bug
ARM: OMAP2+: UART: Fix incorrect population of default uart pads
ARM: OMAP: sram: fix BUG in dpll code for !PM case
dmaengine: Kconfig: fix Atmel at_hdmac entry
USB: gadget/at91_udc: add gpio_to_irq() function to vbus interrupt
USB: ohci-at91: change annotations for probe/remove functions
leds-atmel-pwm.c: Make pwmled_probe() __devinit
ARM: at91: fix at91sam9261ek Ethernet dm9000 irq
ARM: at91: fix rm9200ek flash size
ARM: at91: remove empty at91_init_serial function
ARM: at91: fix typo in at91_pmc_base assembly declaration
ARM: at91: Export at91_matrix_base
ARM: at91: Export at91_pmc_base
ARM: at91: Export at91_ramc_base
ARM: at91: Export at91_st_base
...
Linus Torvalds [Sat, 21 Apr 2012 19:44:37 +0000 (12:44 -0700)]
Merge tag 'mmc-fixes-for-3.4-rc4' of git://git./linux/kernel/git/cjb/mmc
Pull MMC fixes from Chris Ball:
- Build fix for omap_hsmmc with OF against 3.4-rc1.
- Fix CONFIG_MMC_UNSAFE_RESUME semantics regression against 3.3, which
broke hotplug card detection when UNSAFE_RESUME is set.
- Fix a race condition in omap_hsmmc with runtime PM.
- Fix two libertas SDIO-powered-resume regressions.
- Small fixes for discard/sanitize, dw_mmc, cd-gpio and esdhc-imx.
* tag 'mmc-fixes-for-3.4-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc:
mmc: core: Do not pre-claim host in suspend
mmc: dw_mmc: prevent NULL dereference for dma_ops
mmc: unbreak sdhci-esdhc-imx on i.MX25
mmc: cd-gpio: Include header to pickup exported symbol prototypes
mmc: sdhci: refine non-removable card checking for card detection
mmc: dw_mmc: Fix switch from DMA to PIO
mmc: remove MMC bus legacy suspend/resume method
mmc: omap_hsmmc: Get rid of of_have_populated_dt() usage
mmc: omap_hsmmc: build fix for CONFIG_OF=y and CONFIG_MMC_OMAP_HS=m
mmc: fixes for eMMC v4.5 sanitize operation
mmc: fixes for eMMC v4.5 discard operation
Linus Torvalds [Sat, 21 Apr 2012 19:43:23 +0000 (12:43 -0700)]
Merge branch 'v4l_for_linus' of git://git./linux/kernel/git/mchehab/linux-media
Pull media fixes from Mauro Carvalho Chehab:
- Fixes a regression at DVB core when switching from DVB-S2 to DVB-S on
Kaffeine (Fedora 16 Bugzilla #812895);
- Fixes a mutex unlock at an error condition at drx-k;
- Fix winbond-cir set mode;
- mt9m032: Fix a compilation breakage with some random Kconfig;
- mt9m032: fix two dead locks;
- xc5000: don't require an special firmware (that won't be provided by
the vendor) just because the xtal frequency is different;
- V4L DocBook: fix some typos at multi-plane formats description.
* 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media:
[media] xc5000: support 32MHz & 31.875MHz xtal using the 41.024.5 firmware
[media] V4L: mt9m032: fix compilation breakage
[media] V4L: DocBook: Fix typos in the multi-plane formats description
[media] V4L: mt9m032: fix two dead-locks
[media] rc-core: set mode for winbond-cir
[media] drxk: Does not unlock mutex if sanity check failed in scu_command()
[media] dvb_frontend: Fix a regression when switching back to DVB-S
Linus Torvalds [Sat, 21 Apr 2012 19:42:12 +0000 (12:42 -0700)]
Merge tag 'mfd-for-linus-3.4' of git://git./linux/kernel/git/sameo/mfd-2.6
Pull MFD fixes from Samuel Ortiz:
"We have 3 build fixes, a OMAP USB host PHY reset fix and the twl6040
conversion to an i2c driver. The latter may not sound like a fix but
the twl6040 MFD driver won't probe without it, triggering an OMAP4
audio regression."
* tag 'mfd-for-linus-3.4' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6:
mfd: Fix modular builds of rc5t583 regulator support
mfd: Fix asic3_gpio_to_irq
ARM: OMAP3: USB: Fix the EHCI ULPI PHY reset issue
mfd: Convert twl6040 to i2c driver, and separate it from twl core
mfd : Fix dbx500 compilation error
Wenqi Ma [Thu, 19 Apr 2012 00:39:37 +0000 (00:39 +0000)]
net/hyperv: Adding cancellation to ensure rndis filter is closed
Although the network interface is down, the RX packets number which
could be observed by ifconfig may keep on increasing.
This is because the WORK scheduled in netvsc_set_multicast_list()
may be executed after netvsc_close(). That means the rndis filter
may be re-enabled by do_set_multicast() even if it was closed by
netvsc_close().
By canceling possible WORK before close the rndis filter, the issue
could be never happened.
Signed-off-by: Wenqi Ma <wenqi_ma@trendmicro.com.cn>
Reviewed-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>
Stephen Boyd [Wed, 18 Apr 2012 17:25:58 +0000 (17:25 +0000)]
ks8851: Fix mutex deadlock in ks8851_net_stop()
There is a potential deadlock scenario when the ks8851 driver
is removed. The interrupt handler schedules a workqueue which
acquires a mutex that ks8851_net_stop() also acquires before
flushing the workqueue. Previously lockdep wouldn't be able
to find this problem but now that it has the support we can
trigger this lockdep warning by rmmoding the driver after
an ifconfig up.
Fix the possible deadlock by disabling the interrupts in
the chip and then release the lock across the workqueue
flushing. The mutex is only there to proect the registers
anyway so this should be ok.
=======================================================
[ INFO: possible circular locking dependency detected ]
3.0.21-00021-g8b33780-dirty #2911
-------------------------------------------------------
rmmod/125 is trying to acquire lock:
((&ks->irq_work)){+.+...}, at: [<
c019e0b8>] flush_work+0x0/0xac
but task is already holding lock:
(&ks->lock){+.+...}, at: [<
bf00b850>] ks8851_net_stop+0x64/0x138 [ks8851]
which lock already depends on the new lock.
the existing dependency chain (in reverse order) is:
-> #1 (&ks->lock){+.+...}:
[<
c01b89c8>] __lock_acquire+0x940/0x9f8
[<
c01b9058>] lock_acquire+0x10c/0x130
[<
c083dbec>] mutex_lock_nested+0x68/0x3dc
[<
bf00bd48>] ks8851_irq_work+0x24/0x46c [ks8851]
[<
c019c580>] process_one_work+0x2d8/0x518
[<
c019cb98>] worker_thread+0x220/0x3a0
[<
c01a2ad4>] kthread+0x88/0x94
[<
c0107008>] kernel_thread_exit+0x0/0x8
-> #0 ((&ks->irq_work)){+.+...}:
[<
c01b7984>] validate_chain+0x914/0x1018
[<
c01b89c8>] __lock_acquire+0x940/0x9f8
[<
c01b9058>] lock_acquire+0x10c/0x130
[<
c019e104>] flush_work+0x4c/0xac
[<
bf00b858>] ks8851_net_stop+0x6c/0x138 [ks8851]
[<
c06b209c>] __dev_close_many+0x98/0xcc
[<
c06b2174>] dev_close_many+0x68/0xd0
[<
c06b22ec>] rollback_registered_many+0xcc/0x2b8
[<
c06b2554>] rollback_registered+0x28/0x34
[<
c06b25b8>] unregister_netdevice_queue+0x58/0x7c
[<
c06b25f4>] unregister_netdev+0x18/0x20
[<
bf00c1f4>] ks8851_remove+0x64/0xb4 [ks8851]
[<
c049ddf0>] spi_drv_remove+0x18/0x1c
[<
c0468e98>] __device_release_driver+0x7c/0xbc
[<
c0468f64>] driver_detach+0x8c/0xb4
[<
c0467f00>] bus_remove_driver+0xb8/0xe8
[<
c01c1d20>] sys_delete_module+0x1e8/0x27c
[<
c0105ec0>] ret_fast_syscall+0x0/0x3c
other info that might help us debug this:
Possible unsafe locking scenario:
CPU0 CPU1
---- ----
lock(&ks->lock);
lock((&ks->irq_work));
lock(&ks->lock);
lock((&ks->irq_work));
*** DEADLOCK ***
4 locks held by rmmod/125:
#0: (&__lockdep_no_validate__){+.+.+.}, at: [<
c0468f44>] driver_detach+0x6c/0xb4
#1: (&__lockdep_no_validate__){+.+.+.}, at: [<
c0468f50>] driver_detach+0x78/0xb4
#2: (rtnl_mutex){+.+.+.}, at: [<
c06b25e8>] unregister_netdev+0xc/0x20
#3: (&ks->lock){+.+...}, at: [<
bf00b850>] ks8851_net_stop+0x64/0x138 [ks8851]
Cc: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Al Viro [Sat, 21 Apr 2012 01:57:04 +0000 (21:57 -0400)]
kill mm argument of vm_munmap()
it's always current->mm
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Sat, 21 Apr 2012 01:53:35 +0000 (21:53 -0400)]
perfmon: kill some helpers and arguments
pfm_vm_munmap() is simply vm_munmap() and pfm_remove_smpl_mapping()
always get current as the first argument.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Sat, 21 Apr 2012 01:49:41 +0000 (21:49 -0400)]
aio: don't bother with unmapping when aio_free_ring() is coming from exit_aio()
... since exit_mmap() is coming and it will munmap() everything anyway.
In all other cases aio_free_ring() has ctx->mm == current->mm; moreover,
all other callers of vm_munmap() have mm == current->mm, so this will
allow us to get rid of mm argument of vm_munmap().
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Ulf Hansson [Thu, 19 Apr 2012 09:55:25 +0000 (11:55 +0200)]
mmc: core: Do not pre-claim host in suspend
Since SDIO drivers may want to do some SDIO operations in their suspend
callback functions, we must not keep the host claimed when calling them.
Daniel Drake reported that libertas_sdio encountered a deadlock in its
suspend function.
Signed-off-by: Ulf Hansson <ulf.hansson@stericsson.com>
Tested-by: Daniel Drake <dsd@laptop.org>
[stable@: please apply to 3.2-stable and 3.3-stable]
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
Jaehoon Chung [Wed, 18 Apr 2012 06:42:31 +0000 (15:42 +0900)]
mmc: dw_mmc: prevent NULL dereference for dma_ops
Now, dma_ops is assumed that use the IDMAC. But if dma_ops is assigned
the pdata->dma_ops, we didn't ensure that callback function is defined.
If the callback isn't defined, then we should run in PIO mode.
Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: Will Newton <will.newton@imgtec.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
Eric Bénard [Wed, 18 Apr 2012 00:30:20 +0000 (02:30 +0200)]
mmc: unbreak sdhci-esdhc-imx on i.MX25
This was broken by me in
37865fe91582582a6f6c00652f6a2b1ff71f8a78
("mmc: sdhci-esdhc-imx: fix timeout on i.MX's sdhci") where more
extensive tests would have shown that read or write of data to the
card were failing (even if the partition table was correctly read).
Signed-off-by: Eric Bénard <eric@eukrea.com>
Acked-by: Wolfram Sang <w.sang@pengutronix.de>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
H Hartley Sweeten [Tue, 17 Apr 2012 20:03:38 +0000 (13:03 -0700)]
mmc: cd-gpio: Include header to pickup exported symbol prototypes
Include the linux/mmc/cd-gpio.h header to pickup the prototypes
for the two exported symbols.
This quiets the sparse warnings:
warning: symbol 'mmc_cd_gpio_request' was not declared. Should it be static?
warning: symbol 'mmc_cd_gpio_free' was not declared. Should it be static?
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Acked-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Acked-by: Venkatraman S <svenkatr@ti.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
Daniel Drake [Mon, 9 Apr 2012 23:14:20 +0000 (00:14 +0100)]
mmc: sdhci: refine non-removable card checking for card detection
Commit
c79396c191bc19 ("mmc: sdhci: prevent card detection activity
for non-removable cards") disables card detection where the cards
are marked as non-removable.
This makes sense, but the implementation detail of calling
mmc_card_is_removable() causes some problems, because
mmc_card_is_removable() is overloaded with CONFIG_MMC_UNSAFE_RESUME
semantics.
In the OLPC XO case, we need CONFIG_MMC_UNSAFE_RESUME because our root
filesystem is stored on SD, but we also have external SD card slots
where we want automatic card detection.
Refine the check to only apply to hosts marked as MMC_CAP_NONREMOVABLE,
which is defined to mean that the card is *really* nonremovable. This
could be revisited in future if we find a way to improve
CONFIG_MMC_UNSAFE_RESUME semantics.
Signed-off-by: Daniel Drake <dsd@laptop.org>
Acked-by: Chuanxiao Dong <chuanxiao.dong@intel.com>
[stable@: please apply to 3.3-stable]
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
Seungwon Jeon [Tue, 10 Apr 2012 00:53:32 +0000 (09:53 +0900)]
mmc: dw_mmc: Fix switch from DMA to PIO
When dw_mci_pre_dma_transfer returns failure in some reasons,
dw_mci_submit_data will prepare to switch the PIO mode from DMA.
After switching to PIO mode, DMA(IDMAC in particular) is still
enabled. This makes the corruption in handling interrupt and
the driver lock-up.
Signed-off-by: Seungwon Jeon <tgih.jun@samsung.com>
Acked-by: Will Newton <will.newton@imgtec.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
Chuanxiao Dong [Wed, 11 Apr 2012 11:54:38 +0000 (19:54 +0800)]
mmc: remove MMC bus legacy suspend/resume method
MMC bus is using legacy suspend/resume method, which is not compatible if
runtime pm callbacks are used. In this scenario, MMC bus suspend/resume
callbacks cannot be called when system entering S3. So change to use the
new defined dev_pm_ops for system sleeping mode.
Tested on AM335x Platform. Solves major issue/crash reported at
http://www.mail-archive.com/linux-omap@vger.kernel.org/msg65425.html
Signed-off-by: Chuanxiao Dong <chuanxiao.dong@intel.com>
Tested-by: Hebbar, Gururaja <gururaja.hebbar@ti.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Ulf Hansson <ulf.hansson@stericsson.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
Linus Torvalds [Sat, 21 Apr 2012 00:13:58 +0000 (17:13 -0700)]
VM: add "vm_mmap()" helper function
This continues the theme started with vm_brk() and vm_munmap():
vm_mmap() does the same thing as do_mmap(), but additionally does the
required VM locking.
This uninlines (and rewrites it to be clearer) do_mmap(), which sadly
duplicates it in mm/mmap.c and mm/nommu.c. But that way we don't have
to export our internal do_mmap_pgoff() function.
Some day we hopefully don't have to export do_mmap() either, if all
modular users can become the simpler vm_mmap() instead. We're actually
very close to that already, with the notable exception of the (broken)
use in i810, and a couple of stragglers in binfmt_elf.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Fri, 20 Apr 2012 23:20:01 +0000 (16:20 -0700)]
VM: add "vm_munmap()" helper function
Like the vm_brk() function, this is the same as "do_munmap()", except it
does the VM locking for the caller.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Rajendra Nayak [Wed, 11 Apr 2012 10:03:13 +0000 (15:33 +0530)]
mmc: omap_hsmmc: Get rid of of_have_populated_dt() usage
of_have_populated_dt() is not expected to be used in drivers but
instead only in early platform init code.
Drivers on the other hand should rely on dev->of_node or of_match_device().
Besides usage of of_have_populated_dt() also throws up build error as below
which was reported by Balaji TK, when omap_hsmmc is built as a module.
ERROR: "allnodes" [drivers/mmc/host/omap_hsmmc.ko] undefined!
make[1]: *** [__modpost] Error 1
make: *** [modules] Error 2
So get rid of all of_have_populated_dt() usage in omap_hsmmc driver and
instead use dev->of_node to make the same dicisions as earlier.
Signed-off-by: Rajendra Nayak <rnayak@ti.com>
Reported-by: Benoit Cousson <b-cousson@ti.com>
Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Acked-by: Rob Herring <rob.herring@calxeda.com>
Reviewed-by: Balaji T K <balajitk@ti.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
Chris Ball [Tue, 10 Apr 2012 13:57:36 +0000 (09:57 -0400)]
mmc: omap_hsmmc: build fix for CONFIG_OF=y and CONFIG_MMC_OMAP_HS=m
Commit
46856a68dc ("mmc: omap_hsmmc: Convert hsmmc driver to use device tree")
introduced in 3.4-rc1 has a missing semi-colon, causing:
drivers/mmc/host/omap_hsmmc.c:1745: error: expected ',' or ';' before 'extern'
Reported-by: Russell King <linux@arm.linux.org.uk>
Signed-off-by: Chris Ball <cjb@laptop.org>
Adrian Hunter [Thu, 5 Apr 2012 11:45:48 +0000 (14:45 +0300)]
mmc: fixes for eMMC v4.5 sanitize operation
eMMC v4.5 sanitize operation erases all copies of unmapped
data. However trim or erase operations must be used first
to unmap the required sectors. That was not being done.
Fixes apply to linux 3.2 on.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: <stable@vger.kernel.org>
Acked-by: Jaehoon Chung <jh80.chung@samsung.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
Adrian Hunter [Thu, 5 Apr 2012 11:45:47 +0000 (14:45 +0300)]
mmc: fixes for eMMC v4.5 discard operation
eMMC v4.5 discard operation is significantly different from the
existing trim operation because it is not guaranteed to work with
the new sanitize operation. Consequently mmc_can_trim() is
separated from mmc_can_discard().
Also the new discard operation does not result in the sectors being
set to all-zeros, so discard_zeroes_data must not be set.
In addition, the new discard has the same timeout as trim, but from
v4.5 trim is defined to use the hc timeout. The timeout calculation
is adjusted accordingly.
Fixes apply to linux 3.2 on.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: <stable@vger.kernel.org>
Acked-by: Jaehoon Chung <jh80.chung@samsung.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
Linus Torvalds [Fri, 20 Apr 2012 22:35:40 +0000 (15:35 -0700)]
VM: add "vm_brk()" helper function
It does the same thing as "do_brk()", except it handles the VM locking
too.
It turns out that all external callers want that anyway, so we can make
do_brk() static to just mm/mmap.c while at it.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Fri, 20 Apr 2012 19:28:06 +0000 (12:28 -0700)]
Merge tag 'for-torvalds-
20120418' of git://git./linux/kernel/git/linusw/linux-pinctrl
Pull pinctrl fixes from Linus Walleij:
- Fixed compilation errors and warnings
- Stricter checks on the ops vtable
* tag 'for-torvalds-
20120418' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
pinctrl: implement pinctrl_check_ops
pinctrl: include <linux/bug.h> to prevent compile errors
pinctrl: fix compile error if not select PINMUX support
Linus Torvalds [Fri, 20 Apr 2012 18:40:43 +0000 (11:40 -0700)]
Merge tag 'tty-3.4-rc4' of git://git./linux/kernel/git/gregkh/tty
Pull 3 tiny tty bugfixes from Greg Kroah-Hartman.
* tag 'tty-3.4-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
drivers/tty/amiserial.c: add missing tty_unlock
pch_uart: Fix dma channel unallocated issue
ARM: clps711x: serial driver hungs are a result of call disable_irq within ISR
Linus Torvalds [Fri, 20 Apr 2012 18:38:02 +0000 (11:38 -0700)]
Merge tag 'usb-3.4-rc4' of git://git./linux/kernel/git/gregkh/usb
Pull USB fixes from Greg Kroah-Hartman:
"Here are a number of tiny USB fixes for 3.4-rc4.
Most of them are in the USB gadget area, but a few other minor USB
driver and core fixes are here as well.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>"
* tag 'usb-3.4-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (36 commits)
USB: serial: cp210x: Fixed usb_control_msg timeout values
USB: ehci-tegra: don't call set_irq_flags(IRQF_VALID)
USB: yurex: Fix missing URB_NO_TRANSFER_DMA_MAP flag in urb
USB: yurex: Remove allocation of coherent buffer for setup-packet buffer
drivers/usb/misc/usbtest.c: add kfrees
USB: ehci-fsl: Fix kernel crash on mpc5121e
uwb: fix error handling
uwb: fix use of del_timer_sync() in interrupt
EHCI: always clear the STS_FLR status bit
EHCI: fix criterion for resuming the root hub
USB: sierra: avoid QMI/wwan interface on MC77xx
usb: usbtest: avoid integer overflow in alloc_sglist()
usb: usbtest: avoid integer overflow in test_ctrl_queue()
USB: fix deadlock in bConfigurationValue attribute method
usb: gadget: eliminate NULL pointer dereference (bugfix)
usb: gadget: uvc: Remove non-required locking from 'uvc_queue_next_buffer' routine
usb: gadget: rndis: fix Missing req->context assignment
usb: musb: omap: fix the error check for pm_runtime_get_sync
usb: gadget: udc-core: fix asymmetric calls in remove_driver
usb: musb: omap: fix crash when musb glue (omap) gets initialized
...
Linus Torvalds [Fri, 20 Apr 2012 18:31:00 +0000 (11:31 -0700)]
Merge tag 'stable/for-linus-3.4-rc3-tag' of git://git./linux/kernel/git/konrad/xen
Pull xen fixes from Konrad Rzeszutek Wilk:
- mechanism to work with misconfigured backends (where they are
advertised but in reality don't exist).
- two tiny compile warning fixes.
- proper error handling in gnttab_resume
- Not using VM_PFNMAP anymore to allow backends in the same domain.
* tag 'stable/for-linus-3.4-rc3-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen:
Revert "xen/p2m: m2p_find_override: use list_for_each_entry_safe"
xen/resume: Fix compile warnings.
xen/xenbus: Add quirk to deal with misconfigured backends.
xen/blkback: Fix warning error.
xen/p2m: m2p_find_override: use list_for_each_entry_safe
xen/gntdev: do not set VM_PFNMAP
xen/grant-table: add error-handling code on failure of gnttab_resume
Linus Torvalds [Fri, 20 Apr 2012 18:19:35 +0000 (11:19 -0700)]
Revert "ACPI: ignore FADT reset-reg-sup flag"
This reverts commit
cf450136bfde77c7f95065c91bffded4aa7fa731.
It breaks reboot on at least one Thinkpad T43, as reported by Jörg Otte:
"On reboot it shuts down as normal.
The last lines displayed are:
>Unmounting temporary filesystems.. [OK]
>Deactivating swap... [OK]
>Unmounting local filesystems... [OK]
>Will now restart
> Restarting system
Then I hear it accessing the cd-drive, but then it's being stuck."
Jörg bisected the regression to this commit.
That commit fixes another machine (see
https://bugzilla.kernel.org/show_bug.cgi?id=11533
for details) that has a BIOS bug and doesn't support ACPI reset.
However, at least one of those other reporters no longer even has the
machine in question, and had a different workaround to begin with.
Besides, it clearly was a buggy BIOS. Let's not break the correct case
to fix that case.
Reported-and-bisected-by: Jörg Otte <jrg.otte@googlemail.com>
Cc: linux-acpi@vger.kernel.org
Cc: Len Brown <lenb@kernel.org>
Cc: Peter Anvin <hpa@zytor.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Tejun Heo [Fri, 20 Apr 2012 15:31:34 +0000 (08:31 -0700)]
memblock: memblock should be able to handle zero length operations
Commit
24aa07882b ("memblock, x86: Replace memblock_x86_reserve/
free_range() with generic ones") replaced x86 specific memblock
operations with the generic ones; unfortunately, it lost zero length
operation handling in the process making the kernel panic if somebody
tries to reserve zero length area.
There isn't much to be gained by being cranky to zero length operations
and panicking is almost the worst response. Drop the BUG_ON() in
memblock_reserve() and update memblock_add_region/isolate_range() so
that all zero length operations are handled as noops.
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: stable@vger.kernel.org
Reported-by: Valere Monseur <valere.monseur@ymail.com>
Bisected-by: Joseph Freeman <jfree143dev@gmail.com>
Tested-by: Joseph Freeman <jfree143dev@gmail.com>
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=43098
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Fri, 20 Apr 2012 18:16:53 +0000 (11:16 -0700)]
Merge tag 'hwmon-for-linus' of git://git./linux/kernel/git/groeck/linux-staging
Pyll hwmon fixes from Guenter Roeck:
"Two patches: Fix build warning in ads1015 driver, and fix bogus power
values with current BIOSes in fam15h_power driver."
* tag 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
hwmon: (ads1015) Fix build warning
hwmon: fam15h_power: fix bogus values with current BIOSes
Linus Torvalds [Fri, 20 Apr 2012 18:14:58 +0000 (11:14 -0700)]
Merge git://git./linux/kernel/git/herbert/crypto-2.6
Pull crypto fixes from Herbert Xu:
- Locking fix for talitos driver
- Fix 64-bit counter overflow in SHA-512
- Build fix for ixp4xx.
* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
crypto: talitos - properly lock access to global talitos registers
crypto: ixp4xx - include fix
crypto: sha512 - Fix byte counter overflow in SHA-512
Linus Torvalds [Fri, 20 Apr 2012 17:41:00 +0000 (10:41 -0700)]
Merge tag 'sound-3.4' of git://git./linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"Fixes for a few regressions of HD-audio, originated partly from 3.4
and partly 3.3.
The fixes for ThinkPad docking-station are for 3.3 kernels, thus they
are based on 3.3 then merged back to 3.4, so that they can be merged
to stable tree cleanly. The non-trivial merge conflicts are because
of this action.
In addition, a couple of trivial fixes for documentation and a long-
standing issue in the listing of built-in sound driver at boot time."
* tag 'sound-3.4' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: hda/conexant - Set up the missing docking-station pins
ALSA: hda/conexant - Don't set HP pin-control bit unconditionally
ALSA: workaround: change the timing of alsa_sound_last_init()
ALSA: hda/sigmatel - Fix inverted mute LED
ALSA: hda/realtek - Fix regression on Quanta/Gericom KN1
ALSA: fix core/vmaster.c kernel-doc warning
Linus Torvalds [Fri, 20 Apr 2012 17:39:33 +0000 (10:39 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/jikos/hid
Pull HID fixes from Jiri Kosina:
"Fix for one particular device (bluetooth Tivo Slide) and change of
'default y' -> 'default n' for CONFIG_HID_BATTERY_STRENGTH which I
overlooked in the initial merge of the battery support"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid:
HID: default HID_BATTERY_STRENGTH to no
HID: tivo: fix support for bluetooth version of tivo Slide
Linus Torvalds [Fri, 20 Apr 2012 17:38:08 +0000 (10:38 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/gerg/m68knommu
Pull m68k arch fixes from Greg Ungerer:
"This contains four fixes for 3.4. Two fix and clean up compilation
for the nommu 68x328 CPU targets. The other two fix the platform
definition and multi-function pin setup of the second eth interface
on the ColdFire 5275 SoC."
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu:
m68knommu: make sure 2nd FEC eth interface pins are enabled on 5275 ColdFire
m68knommu: fix id number for second eth device on 5275 ColdFire
m68knommu: move and fix the 68VZ328 platform bootlogo.h
m68knommu: remove the unused bootlogo.h processing for 68EZ328 and 68VZ328
Konrad Rzeszutek Wilk [Fri, 20 Apr 2012 15:50:30 +0000 (11:50 -0400)]
Revert "xen/p2m: m2p_find_override: use list_for_each_entry_safe"
This reverts commit
b960d6c43a63ebd2d8518b328da3816b833ee8cc.
If we have another thread (very likely) touched the list, we
end up hitting a problem "that the next element is wrong because
we should be able to cope with that. The problem is that the
next->next pointer would be set LIST_POISON1. " (Stefano's
comment on the patch).
Reverting for now.
Suggested-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Yuri Matylitski [Fri, 20 Apr 2012 09:38:32 +0000 (12:38 +0300)]
USB: serial: cp210x: Fixed usb_control_msg timeout values
Fixed too small hardcoded timeout values for usb_control_msg
in driver for SiliconLabs cp210x-based usb-to-serial adapters.
Replaced with USB_CTRL_GET_TIMEOUT/USB_CTRL_SET_TIMEOUT.
Signed-off-by: Yuri Matylitski <ym@tekinsoft.com>
Acked-by: Kirill A. Shutemov <kirill@shutemov.name>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Julia Lawall [Thu, 19 Apr 2012 16:12:40 +0000 (18:12 +0200)]
drivers/tty/amiserial.c: add missing tty_unlock
tty_unlock is used on all other exits from the function.
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Acked-by: Jiri Slaby <jslaby@suse.cz>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Linus Torvalds [Thu, 19 Apr 2012 21:54:52 +0000 (14:54 -0700)]
Merge branch 'for-3.4' of git://linux-nfs.org/~bfields/linux
Pull nfsd bugfixes from J. Bruce Fields:
"One bugfix, and one minor header fix from Jeff Layton while we're
here"
* 'for-3.4' of git://linux-nfs.org/~bfields/linux:
nfsd: include cld.h in the headers_install target
nfsd: don't fail unchecked creates of non-special files
Mingkai Hu [Mon, 16 Apr 2012 02:05:08 +0000 (10:05 +0800)]
powerpc/mpc85xx: add MPIC message dts node
Signed-off-by: Mingkai Hu <Mingkai.hu@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Mingkai Hu [Mon, 16 Apr 2012 02:05:07 +0000 (10:05 +0800)]
powerpc/mpic_msgr: fix offset error when setting mer register
Signed-off-by: Mingkai Hu <Mingkai.hu@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Mingkai Hu [Mon, 16 Apr 2012 02:05:06 +0000 (10:05 +0800)]
powerpc/mpic_msgr: add lock for MPIC message global variable
Also fix issue of accessing invalid msgr pointer issue. The local
msgr pointer in fucntion mpic_msgr_get will be accessed before
getting a valid address which will cause kernel crash.
Signed-off-by: Mingkai Hu <Mingkai.hu@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Mingkai Hu [Mon, 16 Apr 2012 02:05:05 +0000 (10:05 +0800)]
powerpc/mpic_msgr: fix compile error when SMP disabled
In file included from arch/powerpc/sysdev/mpic_msgr.c:20:0:
~/arch/powerpc/include/asm/mpic_msgr.h: In function 'mpic_msgr_set_destination':
~/arch/powerpc/include/asm/mpic_msgr.h:117:2:
error: implicit declaration of function 'get_hard_smp_processor_id'
make[1]: *** [arch/powerpc/sysdev/mpic_msgr.o] Error 1
Signed-off-by: Mingkai Hu <Mingkai.hu@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Baruch Siach [Thu, 19 Apr 2012 06:32:06 +0000 (09:32 +0300)]
powerpc: fix build when CONFIG_BOOKE_WDT is enabled
Commit
ae3a197e (Disintegrate asm/system.h for PowerPC) broke build of
assembly files when CONFIG_BOOKE_WDT is enabled as follows:
AS arch/powerpc/lib/string.o
/home/baruch/git/stable/arch/powerpc/include/asm/reg_booke.h: Assembler messages:
/home/baruch/git/stable/arch/powerpc/include/asm/reg_booke.h:19: Error: Unrecognized opcode: `extern'
/home/baruch/git/stable/arch/powerpc/include/asm/reg_booke.h:20: Error: Unrecognized opcode: `extern'
Since setup_32.c is the only user of the booke_wdt configuration variables, move
the declarations there.
Cc: David Howells <dhowells@redhat.com>
Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Timur Tabi [Wed, 30 Nov 2011 16:19:17 +0000 (10:19 -0600)]
powerpc/85xx: don't call of_platform_bus_probe() twice
Commit
46d026ac ("powerpc/85xx: consolidate of_platform_bus_probe calls")
replaced platform-specific of_device_id tables with a single function
that probes the most of the busses in 85xx device trees. If a specific
platform needed additional busses probed, then it could call
of_platform_bus_probe() again. Typically, the additional platform-specific
busses are children of existing busses that have already been probed.
of_platform_bus_probe() does not handle those child busses automatically.
Unfortunately, this doesn't actually work. The second (platform-specific)
call to of_platform_bus_probe() never finds any of the busses it's asked
to find.
To remedy this, the platform-specific of_device_id tables are eliminated,
and their entries are merged into mpc85xx_common_ids[], so that all busses
are probed at once.
Signed-off-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Eric W. Biederman [Wed, 18 Apr 2012 16:11:23 +0000 (16:11 +0000)]
net ax25: Reorder ax25_exit to remove races.
While reviewing the sysctl code in ax25 I spotted races in ax25_exit
where it is possible to receive notifications and packets after already
freeing up some of the data structures needed to process those
notifications and updates.
Call unregister_netdevice_notifier early so that the rest of the cleanup
code does not need to deal with network devices. This takes advantage
of my recent enhancement to unregister_netdevice_notifier to send
unregister notifications of all network devices that are current
registered.
Move the unregistration for packet types, socket types and protocol
types before we cleanup any of the ax25 data structures to remove the
possibilities of other races.
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Giuseppe CAVALLARO [Tue, 17 Apr 2012 21:16:40 +0000 (21:16 +0000)]
icplus: fix interrupt for IC+ 101A/G and 1001LF
This patch fixes and adds the irq handler for the
IC+ 101A/G where we need to read the reg17 to clean
the irq.
Also remove the flag for the 1001LF where no interrupt
can be used for this device.
Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Bjørn Mork [Tue, 17 Apr 2012 09:38:23 +0000 (09:38 +0000)]
net: qmi_wwan: support Sierra Wireless MC77xx devices in QMI mode
The MC77xx devices can operate in two modes: "Direct IP" or "QMI",
switchable using a password protected AT command. Both product ID
and USB interface configuration will change when switched.
The "sierra_net" driver supports the "Direct IP" mode. This driver
supports the "QMI" mode.
There are also multiple possible USB interface configurations in each
mode, some providing more than one wwan interface. Like many other
devices made for Windows, different interface types are identified
using a static interface number. We define a Sierra specific
interface whitelist to support this.
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
Dan Carpenter [Tue, 17 Apr 2012 20:53:42 +0000 (20:53 +0000)]
bnx2x: off by one in bnx2x_ets_e3b0_sp_pri_to_cos_set()
The sp_pri_to_cos[] array size depends on the config but lets say it is
BX_E3B0_MAX_NUM_COS_PORT0 and max_num_of_cos is also
DCBX_E3B0_MAX_NUM_COS_PORT0. In the original code
"pri == max_num_of_cos" was accepted but it is one past the end of the
array.
Also we used "pri" before capping it. It's a harmless read past the end
of the array, but it would affect which error message gets printed.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Michael Krufky [Mon, 16 Apr 2012 17:59:32 +0000 (14:59 -0300)]
[media] xc5000: support 32MHz & 31.875MHz xtal using the 41.024.5 firmware
Rather than loading firmware specific for the xtal frequency, just use
the standard firmware and set the xtal frequency after firmware upload.
The modified firmware will never be released, so we're better off
merging this now rather than waiting for v3.5.
Signed-off-by: Michael Krufky <mkrufky@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Konrad Rzeszutek Wilk [Tue, 17 Apr 2012 18:35:49 +0000 (14:35 -0400)]
xen/resume: Fix compile warnings.
linux/drivers/xen/manage.c: In function 'do_suspend':
linux/drivers/xen/manage.c:160:5: warning: 'si.cancelled' may be used uninitialized in this function
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Linus Torvalds [Thu, 19 Apr 2012 19:08:11 +0000 (12:08 -0700)]
Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
Pull drm fixes from Dave Airlie:
"It's like a grab bag of one liners:
- core: fix page flip error path, reorder object teardown.
- usb: fix the drm_usb module license.
- i915: VT switch on SNB with non-native modes fix, and a regression
fix from 3.3.
- radeon: missing unreserve on SI, AGP/VRAM setup fix (fixes radeon on
IA64, but its a generic bug), an rn50 regression from 3.3, turn off
MSIs on rv515 (it loses rearms every so often)."
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
nouveau: Set special lane map for the right chipset
drm/radeon: fix load detect on rn50 with hardcoded EDIDs.
drm: Releasing FBs before releasing GEM objects during drm_release
drm/nouveau/pm: don't read/write beyond end of stack buffer
drivers: gpu: drm: gma500: mdfld_dsi_output.h: Remove not unneeded include of version.h
radeon: fix r600/agp when vram is after AGP (v3)
drm: fix page_flip error handling
drm/radeon/kms: fix the regression of DVI connector check
drm/usb: fix module license on drm/usb layer.
drm/i915: Do not set "Enable Panel Fitter" on SNB pageflips
drm/i915: Hold mode_config lock whilst changing mode for lastclose()
drm/radeon/si: add missing radeon_bo_unreserve in si_rlc_init() v2
drm/radeon: disable MSI on RV515
drm/i915: don't clobber the special upscaling lvds timings
Guennadi Liakhovetski [Wed, 18 Apr 2012 06:59:01 +0000 (03:59 -0300)]
[media] V4L: mt9m032: fix compilation breakage
Fix the following compilation failure:
linux-2.6/drivers/media/video/mt9m032.c: In function '__mt9m032_get_pad_crop':
linux-2.6/drivers/media/video/mt9m032.c:337: error: implicit declaration of function 'v4l2_subdev_get_try_crop'
linux-2.6/drivers/media/video/mt9m032.c:337: warning: return makes pointer from integer without a cast
linux-2.6/drivers/media/video/mt9m032.c: In function '__mt9m032_get_pad_format':
linux-2.6/drivers/media/video/mt9m032.c:359: error: implicit declaration of function 'v4l2_subdev_get_try_format'
linux-2.6/drivers/media/video/mt9m032.c:359: warning: return makes pointer from integer without a cast
linux-2.6/drivers/media/video/mt9m032.c: In function 'mt9m032_probe':
linux-2.6/drivers/media/video/mt9m032.c:767: error: 'struct v4l2_subdev' has no member named 'entity'
linux-2.6/drivers/media/video/mt9m032.c:826: error: 'struct v4l2_subdev' has no member named 'entity'
linux-2.6/drivers/media/video/mt9m032.c: In function 'mt9m032_remove':
linux-2.6/drivers/media/video/mt9m032.c:842: error: 'struct v4l2_subdev' has no member named 'entity'
make[4]: *** [drivers/media/video/mt9m032.o] Error 1
by adding a dependency on VIDEO_V4L2_SUBDEV_API.
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Russell King [Thu, 19 Apr 2012 18:35:10 +0000 (19:35 +0100)]
Revert "ARM: 7359/2: smp_twd: Only wait for reprogramming on active cpus"
This reverts commit
9f85550347f51c79a917b2aec04c90691c11e20a.
Peter Zijlstra says:
| Argh, how did that ever make it upstream, please drop.
|
| Russell, please make that go away upstream.
|
| Like I said, this is both completely the wrong way to solve, and you're
| so not paying attention, see:
|
|
5fbd036b552f633abb394a319f7c62a5c86a9cd7
|
2baab4e90495ebc9826c93f79d74d6e60a828d24
|
e3831edd59edf57ca11fc289f08961b20baf5146
|
| What's even worse:
|
| git describe --contains
9f85550347f51c79a917b2aec04c90691c11e20a --match "v*"
| v3.4-rc3~1^2~3
|
| that nonsense got merged long after those other commits.
Linus Walleij says:
| My bad, was because the initial patch was submitted march 9th before
| these fixes were merged:
| http://marc.info/?l=linux-arm-kernel&m=
133159655513844&w=2
|
| It was pending for a while in Russell's patch tracker and I
| rebased it to -rc2 without paying enough attention to recent
| related scheduler fixes ... lesson learned.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Linus Torvalds [Thu, 19 Apr 2012 17:28:59 +0000 (10:28 -0700)]
Merge git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull KVM updates from Marcelo Tosatti.
* git://git.kernel.org/pub/scm/virt/kvm/kvm:
KVM: lock slots_lock around device assignment
KVM: VMX: Fix kvm_set_shared_msr() called in preemptible context
KVM: unmap pages from the iommu when slots are removed
KVM: PMU emulation: GLOBAL_CTRL MSR should be enabled on reset
Dan Carpenter [Thu, 19 Apr 2012 07:00:19 +0000 (10:00 +0300)]
ksz884x: don't copy too much in netdev_set_mac_address()
MAX_ADDR_LEN is 32. ETH_ALEN is 6. mac->sa_data is a 14 byte array, so
the memcpy() is doing a read past the end of the array. I asked about
this on netdev and Ben Hutchings told me it's supposed to be copying
ETH_ALEN bytes (thanks Ben).
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Konrad Rzeszutek Wilk [Wed, 18 Apr 2012 02:21:38 +0000 (22:21 -0400)]
xen/xenbus: Add quirk to deal with misconfigured backends.
A rather annoying and common case is when booting a PVonHVM guest
and exposing the PV KBD and PV VFB - as broken toolstacks don't
always initialize the backends correctly.
Normally The HVM guest is using the VGA driver and the emulated
keyboard for this (though upstream version of QEMU implements
PV KBD, but still uses a VGA driver). We provide a very basic
two-stage wait mechanism - where we wait for 30 seconds for all
devices, and then for 270 for all them except the two mentioned.
That allows us to wait for the essential devices, like network
or disk for the full 6 minutes.
To trigger this, put this in your guest config:
vfb = [ 'vnc=1, vnclisten=0.0.0.0 ,vncunused=1']
instead of this:
vnc=1
vnclisten="0.0.0.0"
CC: stable@kernel.org
Acked-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
[v3: Split delay in non-essential (30 seconds) and essential
devices per Ian and Stefano suggestion]
[v4: Added comments per Stefano suggestion]
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Henrik Rydberg [Thu, 12 Apr 2012 22:37:00 +0000 (00:37 +0200)]
nouveau: Set special lane map for the right chipset
The refactoring of the nv50 logic, introduced in
8663bc7c, modified the
test for the special lane map used on some Apple computers with Nvidia
chipsets. The tested MBA3,1 would still boot, but resume from suspend
stopped working. This patch restores the old test, which fixes the problem.
Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
Acked-by: Ben Skeggs <bskeggs@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Takashi Iwai [Thu, 19 Apr 2012 15:13:03 +0000 (17:13 +0200)]
Merge branch 'fix/cxt-stable' into fix/hda
Merge fixes for Thinkpad docking-station regressions for 3.3 kernels
back to 3.4. These were committed in that branch to make the stable
merging easier.
Conflicts:
sound/pci/hda/patch_conexant.c