The GPIO driver for txx9 requires gpiolib, so this is more accurate and
let us get rid of one mention of GENERIC_GPIO which is due to disappear.
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
The GPIO driver uses gpiolib, thus it should be compiled when
CONFIG_GPIOLIB is defined and not only CONFIG_GENERIC_GPIO.
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
- Fix for the return type of xfs_iomap_eof_prealloc_initial_size
from a1e16c2666
- Fix for a failed buffer readahead causing subsequent callers to
fail incorrectly
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Merge tag 'for-linus-v3.9-rc4' of git://oss.sgi.com/xfs/xfs
Pull XFS fixes from Ben Myers:
- Fix for a potential infinite loop which was introduced in commit
4d559a3bcb ("xfs: limit speculative prealloc near ENOSPC
thresholds")
- Fix for the return type of xfs_iomap_eof_prealloc_initial_size from
commit a1e16c2666 ("xfs: limit speculative prealloc size on sparse
files")
- Fix for a failed buffer readahead causing subsequent callers to fail
incorrectly
* tag 'for-linus-v3.9-rc4' of git://oss.sgi.com/xfs/xfs:
xfs: ensure we capture IO errors correctly
xfs: fix xfs_iomap_eof_prealloc_initial_size type
xfs: fix potential infinite loop in xfs_iomap_prealloc_size()
Mantas Mikulėnas reported that his graphics hardware failed to
initialise after commit f9a37be0f0 ("x86: Use PCI setup data").
The aim of this commit was to ensure that ROM images were available on
some Apple systems that don't expose the GPU ROM via any other source.
In this case, UEFI appears to have provided a broken ROM image that we
were using even though there was a perfectly valid ROM available via
other sources. The simplest way to handle this seems to be to just
re-order pci_map_rom() and leave any firmare-supplied ROM to last.
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
Tested-by: Mantas Mikulėnas <grawity@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Pull sparc fixes from David Miller:
"Just some minor fixups, a sunsu console setup panic cure, and
recognition of a Fujitsu sun4v cpu."
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc:
sparc: remove unused "config BITS"
sparc: delete "if !ULTRA_HAS_POPULATION_COUNT"
sparc64: correctly recognize SPARC64-X chips
sparc,leon: fix GRPCI2 device0 PCI config space access
sunsu: Fix panic in case of nonexistent port at "console=ttySY" cmdline option
- Fix padding computation in struct ucontext (no ABI change).
- Minor clean-up after the signal patches (unused var).
- Two old Kconfig options clean-up.
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas/linux-aarch64
Pull arm64 fixes from Catalin Marinas:
- Fix !SMP build error.
- Fix padding computation in struct ucontext (no ABI change).
- Minor clean-up after the signal patches (unused var).
- Two old Kconfig options clean-up.
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas/linux-aarch64:
arm64: Kconfig.debug: Remove unused CONFIG_DEBUG_ERRORS
arm64: Do not select GENERIC_HARDIRQS_NO_DEPRECATED
arm64: fix padding computation in struct ucontext
arm64: Fix build error with !SMP
arm64: Removed unused variable in compat_setup_rt_frame()
sparc's asm/module.h got removed in commit
786d35d45c ("Make most arch asm/module.h
files use asm-generic/module.h"). That removed the only two uses of this
Kconfig symbol. So we can remove its entry too.
> >From arch/sparc/Makefile:
> ifeq ($(CONFIG_SPARC32),y)
> [...]
>
> [...]
> export BITS := 32
> [...]
>
> else
> [...]
>
> [...]
> export BITS := 64
> [...]
>
> So $(BITS) is set depending on whether CONFIG_SPARC32 is set or not.
> Using $(BITS) in sparc's Makefiles is not using CONFIG_BITS. That
> doesn't count as usage of "config BITS".
Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Pull networking fixes from David Miller:
1) Fix ARM BPF JIT handling of negative 'k' values, from Chen Gang.
2) Insufficient space reserved for bridge netlink values, fix from
Stephen Hemminger.
3) Some dst_neigh_lookup*() callers don't interpret error pointer
correctly, fix from Zhouyi Zhou.
4) Fix transport match in SCTP active_path loops, from Xugeng Zhang.
5) Fix qeth driver handling of multi-order SKB frags, from Frank
Blaschka.
6) fec driver is missing napi_disable() call, resulting in crashes on
unload, from Georg Hofmann.
7) Don't try to handle PMTU events on a listening socket, fix from Eric
Dumazet.
8) Fix timestamp location calculations in IP option processing, from
David Ward.
9) FIB_TABLE_HASHSZ setting is not controlled by the correct kconfig
tests, from Denis V Lunev.
10) Fix TX descriptor push handling in SFC driver, from Ben Hutchings.
11) Fix isdn/hisax and tulip/de4x5 kconfig dependencies, from Arnd
Bergmann.
12) bnx2x statistics don't handle 4GB rollover correctly, fix from
Maciej Żenczykowski.
13) Openvswitch bug fixes for vport del/new error reporting, missing
genlmsg_end() call in netlink processing, and mis-parsing of
LLC/SNAP ethernet types. From Rich Lane.
14) SKB pfmemalloc state should only be propagated from the head page of
a compound page, fix from Pavel Emelyanov.
15) Fix link handling in tg3 driver for 5715 chips when autonegotation
is disabled. From Nithin Sujir.
16) Fix inverted test of cpdma_check_free_tx_desc return value in
davinci_emac driver, from Mugunthan V N.
17) vlan_depth is incorrectly calculated in skb_network_protocol(), from
Li RongQing.
18) Fix probing of Gobi 1K devices in qmi_wwan driver, and fix NCM
device mode backwards compat in cdc_ncm driver. From Bjørn Mork.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (52 commits)
inet: limit length of fragment queue hash table bucket lists
qeth: Fix scatter-gather regression
qeth: Fix invalid router settings handling
qeth: delay feature trace
tcp: dont handle MTU reduction on LISTEN socket
bnx2x: fix occasional statistics off-by-4GB error
vhost/net: fix heads usage of ubuf_info
bridge: Add support for setting BR_ROOT_BLOCK flag.
bnx2x: add missing napi deletion in error path
drivers: net: ethernet: ti: davinci_emac: fix usage of cpdma_check_free_tx_desc()
ethernet/tulip: DE4x5 needs VIRT_TO_BUS
isdn: hisax: netjet requires VIRT_TO_BUS
net: cdc_ncm, cdc_mbim: allow user to prefer NCM for backwards compatibility
rtnetlink: Mask the rta_type when range checking
Revert "ip_gre: make ipgre_tunnel_xmit() not parse network header as IP unconditionally"
Fix dst_neigh_lookup/dst_neigh_lookup_skb return value handling bug
smsc75xx: configuration help incorrectly mentions smsc95xx
net: fec: fix missing napi_disable call
net: fec: restart the FEC when PHY speed changes
skb: Propagate pfmemalloc on skb from head page only
...
Commit 2d78d4beb6 ("[PATCH] bitops:
sparc64: use generic bitops") made the default of GENERIC_HWEIGHT depend
on !ULTRA_HAS_POPULATION_COUNT. But since there's no Kconfig symbol with
that name, this always evaluates to true. Delete this dependency.
Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
The Kconfig entry for DEBUG_ERRORS is a verbatim copy of the former arm
entry for that symbol. It got removed in v2.6.39 because it wasn't
actually used anywhere. There are still no users of DEBUG_ERRORS so
remove this entry too.
Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
[catalin.marinas@arm.com: removed option from defconfig]
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Config option GENERIC_HARDIRQS_NO_DEPRECATED was removed in commit
78c8982564 ("genirq: Remove the now obsolete
config options and select statements"), but the select was accidentally
reintroduced in commit 8c2c3df31e ("arm64:
Build infrastructure").
Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
This patch introduces a constant limit of the fragment queue hash
table bucket list lengths. Currently the limit 128 is choosen somewhat
arbitrary and just ensures that we can fill up the fragment cache with
empty packets up to the default ip_frag_high_thresh limits. It should
just protect from list iteration eating considerable amounts of cpu.
If we reach the maximum length in one hash bucket a warning is printed.
This is implemented on the caller side of inet_frag_find to distinguish
between the different users of inet_fragment.c.
I dropped the out of memory warning in the ipv4 fragment lookup path,
because we already get a warning by the slab allocator.
Cc: Eric Dumazet <eric.dumazet@gmail.com>
Cc: Jesper Dangaard Brouer <jbrouer@redhat.com>
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch fixes a scatter-gather regression introduced with
commit 5640f768 net: use a per task frag allocator
Now the qeth driver can cope with bigger framents and split a fragment in
sub framents if required.
Signed-off-by: Frank Blaschka <blaschka@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Give a bad return code when specifying a router setting that is either
invalid or not support on the respective device type. In addition, fall back
the previous setting instead of silently switching back to 'no routing'.
Signed-off-by: Stefan Raspl <raspl@linux.vnet.ibm.com>
Signed-off-by: Frank Blaschka <blaschka@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Delay tracing of the card features until the optional commands have been
enabled.
Signed-off-by: Stefan Raspl <raspl@linux.vnet.ibm.com>
Signed-off-by: Frank Blaschka <blaschka@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Pull hwmon fixes from Jean Delvare.
* 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging:
hwmon: (lm75) Fix tcn75 prefix
hwmon: (lm75.h) Update header inclusion
MAINTAINERS: Remove Mark M. Hoffman
Somehow the driver snuck in with these still in it.
Signed-off-by: Ben Collins <ben.c@servergy.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Pull workqueue fix from Tejun Heo:
"Lai's patch to fix highly unlikely but still possible workqueue stall
during CPU hotunplug."
* 'for-3.9-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq:
workqueue: fix possible pool stall bug in wq_unbind_fn()
File lm75.h used to include <linux/hwmon.h> for SENSORS_LIMIT() but
this function is gone by now. Instead we call clamp_val() so we should
include <linux/kernel.h>, where this function is declared.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Mark M. Hoffman stopped working on the Linux kernel several years
ago, so he should no longer be listed as a driver maintainer. I'm not
even sure if his e-mail address still works.
I can take over 3 drivers he was responsible for, the 4th one will
fall down to the subsystem maintainer.
Also give Mark credit for all the good work he did.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: "Mark M. Hoffman" <mhoffman@lightlink.com>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Cc: Wolfram Sang <wolfram@the-dreams.de>
Failed buffer readahead can leave the buffer in the cache marked
with an error. Most callers that then issue a subsequent read on the
buffer do not zero the b_error field out, and so we may incorectly
detect an error during IO completion due to the stale error value
left on the buffer.
Avoid this problem by zeroing the error before IO submission. This
ensures that the only IO errors that are detected those captured
from are those captured from bio submission or completion.
Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Mark Tinguely <tinguely@sgi.com>
Signed-off-by: Ben Myers <bpm@sgi.com>
(cherry picked from commit c163f9a176)
Fix the return type of xfs_iomap_eof_prealloc_initial_size() to
xfs_fsblock_t to reflect the fact that the return value may be an
unsigned 64 bits if XFS_BIG_BLKNOS is defined.
Signed-off-by: Mark Tinguely <tinguely@sgi.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Ben Myers <bpm@sgi.com>
(cherry picked from commit e8108cedb1)
If freesp == 0, we could end up in an infinite loop while squashing
the preallocation. Break the loop when we've killed the prealloc
entirely.
Signed-off-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Ben Myers <bpm@sgi.com>
(cherry picked from commit e78c420bfc)
When an ICMP ICMP_FRAG_NEEDED (or ICMPV6_PKT_TOOBIG) message finds a
LISTEN socket, and this socket is currently owned by the user, we
set TCP_MTU_REDUCED_DEFERRED flag in listener tsq_flags.
This is bad because if we clone the parent before it had a chance to
clear the flag, the child inherits the tsq_flags value, and next
tcp_release_cb() on the child will decrement sk_refcnt.
Result is that we might free a live TCP socket, as reported by
Dormando.
IPv4: Attempt to release TCP socket in state 1
Fix this issue by testing sk_state against TCP_LISTEN early, so that we
set TCP_MTU_REDUCED_DEFERRED on appropriate sockets (not a LISTEN one)
This bug was introduced in commit 563d34d057
(tcp: dont drop MTU reduction indications)
Reported-by: dormando <dormando@rydia.net>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The UPDATE_QSTAT function introduced on February 15, 2012
in commit 1355b704b9 "bnx2x: consistent statistics after
internal driver reload" incorrectly fails to handle overflow
during addition of the lower 32-bit field of a stat.
This bug is present since 3.4-rc1 and should thus be considered
a candidate for stable 3.4+ releases.
Google-Bug-Id: 8374428
Signed-off-by: Maciej Żenczykowski <maze@google.com>
Cc: Mintz Yuval <yuvalmin@broadcom.com>
Acked-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This fixes a couple of problems. Firstly, some people are actually still
using old small-page flash and we broke it by removing the ready check.
Secondly. fix the handling of partitions on Broadcom 47xx devices.
Recent changes had made it misdetect the location of the NVRAM and
scribble over the bootloader when it tried to update the variables there.
With predictably sad results.
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Merge tag 'for-linus-20130318' of git://git.infradead.org/linux-mtd
Pull MTD fixes from David Woodhouse:
"This fixes a couple of problems. Firstly, some people are actually
still using old small-page flash and we broke it by removing the ready
check.
Secondly. fix the handling of partitions on Broadcom 47xx devices.
Recent changes had made it misdetect the location of the NVRAM and
scribble over the bootloader when it tried to update the variables
there. With predictably sad results."
* tag 'for-linus-20130318' of git://git.infradead.org/linux-mtd:
mtd: nand: reintroduce NAND_NO_READRDY as NAND_NEED_READRDY
mtd: bcm47xxpart: look for NVRAM at the end of device
Revert "mtd: bcm47xxpart: improve probing of nvram partition"
Pull selinux bugfix from James Morris.
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security:
selinux: use GFP_ATOMIC under spin_lock
Pull s390 fixes from Martin Schwidefsky:
"A couple of bug fixes, the most hairy on is the flush_tlb_kernel_range
fix. Another case of "how could this ever have worked?"."
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
s390/kdump: Do not add standby memory for kdump
drivers/i2c: remove !S390 dependency, add missing GENERIC_HARDIRQS dependencies
s390/scm: process availability
s390/scm_blk: suspend writes
s390/scm_drv: extend notify callback
s390/scm_blk: fix request number accounting
s390/mm: fix flush_tlb_kernel_range()
s390/mm: fix vmemmap size calculation
s390: critical section cleanup vs. machine checks
Things are calming down for arm-soc as well. This set of bug fixes is
dominated in size by the at91 platform bug fixes. Some of them were
meant to go through the framebuffer tree during the merge window, but
since the framebuffer maintainer could not be reached, I offered to
take them here. The other notable at91 change is the addition of pinctrl
definitions to fix the NAND controller.
The rest are mostly simple regression fixes:
* Our removal of VIRT_TO_BUS conflicted with Stephen Rothwell's
renaming of the Kconfig symbol. You will get a trivial merge conflict
here, we still want to remove it.
* missing bits for clocks on imx and s5pv210
* missing header inclusions in mmp and shmobile
* typos in s5pv210 camera and vt8500 clock support code
and three trivial fixes for pre-3.8 bugs:
* an old bogus build warning in the joystick driver
* a misleading Kconfig description
* a NULL pointer check on davinci
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Merge tag 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC bug fixes from Arnd Bergmann:
"Things are calming down for arm-soc as well. This set of bug fixes is
dominated in size by the at91 platform bug fixes. Some of them were
meant to go through the framebuffer tree during the merge window, but
since the framebuffer maintainer could not be reached, I offered to
take them here. The other notable at91 change is the addition of
pinctrl definitions to fix the NAND controller.
The rest are mostly simple regression fixes:
- Our removal of VIRT_TO_BUS conflicted with Stephen Rothwell's
renaming of the Kconfig symbol. You will get a trivial merge
conflict here, we still want to remove it.
- missing bits for clocks on imx and s5pv210
- missing header inclusions in mmp and shmobile
- typos in s5pv210 camera and vt8500 clock support code
and three trivial fixes for pre-3.8 bugs:
- an old bogus build warning in the joystick driver
- a misleading Kconfig description
- a NULL pointer check on davinci"
* tag 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
ARM: fix CONFIG_VIRT_TO_BUS handling
ARM: i.MX35: enable MAX clock
ARM: Scorpion is a v7 architecture, not v6
ARM: mmp: add platform_device head file in gplugd
input/joystick: use get_cycles on ARM
[media] s5p-fimc: fix s5pv210 build
clk: vt8500: Fix "fix device clock divisor calculations"
ARM: i.MX25: Fix DT compilation
ARM: at91: fix infinite loop in at91_irq_suspend/resume
ARM: at91: add gpio suspend/resume support when using pinctrl
ARM: at91: fix LCD-wiring mode
atmel_lcdfb: fix 16-bpp modes on older SOCs
ARM: at91: dt: at91sam9x5: complete NAND pinctrl
ARM: at91: dt: at91sam9x5: correct NAND pins comments
ARM: davinci: edma: fix dmaengine induced null pointer dereference on da830
ARM: shmobile: marzen: Include mmc/host.h
ARM: EXYNOS: Add #dma-cells for generic dma binding support for PL330
ARM: S5PV210: Fix PL330 DMA controller clkdev entries
Pull powerpc fixes from Ben Herrenschmidt:
"Here's a few powerpc fixes for 3.9, mostly regressions (though not all
from 3.9 merge window) that we've been hammering into shape over the
last couple of weeks. They fix booting on Cell and G5 among other
things (yes, we've been a bit sloppy with older machines this time
around)."
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc:
powerpc: Rename USER_ESID_BITS* to ESID_BITS*
powerpc: Update kernel VSID range
powerpc: Make VSID_BITS* dependency explicit
powerpc: Make sure that we alays include CONFIG_BINFMT_ELF
powerpc/ptrace: Fix brk.len used uninitialised
powerpc: Fix -mcmodel=medium breakage in prom_init.c
powerpc: Remove last traces of POWER4_ONLY
powerpc: Fix cputable entry for 970MP rev 1.0
powerpc: Fix STAB initialization
Pull ARM fixes from Russell King:
"Just three fixes this time - a fix for a fix for our memset function,
fixing the dummy clockevent so that it doesn't interfere with real
hardware clockevents, and fixing a build error for Tegra."
* 'fixes' of git://git.linaro.org/people/rmk/linux-arm:
ARM: 7675/1: amba: tegra-ahb: Fix build error w/ PM_SLEEP w/o PM_RUNTIME
ARM: 7674/1: smp: Avoid dummy clockevent being preferred over real hardware clock-event
ARM: 7670/1: fix the memset fix
887cbce0 "arch Kconfig: centralise CONFIG_ARCH_NO_VIRT_TO_BUS"
and 4febd95a8 "Select VIRT_TO_BUS directly where needed" from
Stephen Rothwell changed globally how CONFIG_VIRT_TO_BUS is
selected, while my own a5d533ee0 "ARM: disable virt_to_bus/
virt_to_bus almost everywhere" was merged at the same time and
changed which platforms select it on ARM.
The result of this conflict was that we again see CONFIG_VIRT_TO_BUS
on all ARM systems. This patch fixes up the problem and removes
CONFIG_ARCH_NO_VIRT_TO_BUS again on ARM.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
The call tree here is:
sk_clone_lock() <- takes bh_lock_sock(newsk);
xfrm_sk_clone_policy()
__xfrm_sk_clone_policy()
clone_policy() <- uses GFP_ATOMIC for allocations
security_xfrm_policy_clone()
security_ops->xfrm_policy_clone_security()
selinux_xfrm_policy_clone()
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Cc: stable@kernel.org
Signed-off-by: James Morris <james.l.morris@oracle.com>
The expression to compute the padding needed to fill the uc_sigmask field
to 1024 bits actually computes the padding needed for 1080 bits.
Fortunately, due to the 16-byte alignment of the following field
(uc_mcontext) the definition in glibc contains enough bytes of padding
after uc_sigmask so that the overall offsets and size match in both
definitions.
Signed-off-by: Andreas Schwab <schwab@suse.de>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
The __atomic_hash is only defined when SMP is enabled but the
arm64ksyms.c exports it even for the UP case.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Commit 1d9d8639c0 ("perf,x86: fix kernel crash with PEBS/BTS after
suspend/resume") introduces a link failure since
perf_restore_debug_store() is only defined for CONFIG_CPU_SUP_INTEL:
arch/x86/power/built-in.o: In function `restore_processor_state':
(.text+0x45c): undefined reference to `perf_restore_debug_store'
Fix it by defining the dummy function appropriately.
Signed-off-by: David Rientjes <rientjes@google.com>
Cc: stable@vger.kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Commit 1d9d8639c0 ("perf,x86: fix kernel crash with PEBS/BTS after
suspend/resume") fixed a crash when doing PEBS performance profiling
after resuming, but in using init_debug_store_on_cpu() to restore the
DS_AREA mtrr it also resulted in a new WARN_ON() triggering.
init_debug_store_on_cpu() uses "wrmsr_on_cpu()", which in turn uses CPU
cross-calls to do the MSR update. Which is not really valid at the
early resume stage, and the warning is quite reasonable. Now, it all
happens to _work_, for the simple reason that smp_call_function_single()
ends up just doing the call directly on the CPU when the CPU number
matches, but we really should just do the wrmsr() directly instead.
This duplicates the wrmsr() logic, but hopefully we can just remove the
wrmsr_on_cpu() version eventually.
Reported-and-tested-by: Parag Warudkar <parag.lkml@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
ubuf info allocator uses guest controlled head as an index,
so a malicious guest could put the same head entry in the ring twice,
and we will get two callbacks on the same value.
To fix use upend_idx which is guaranteed to be unique.
Reported-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Cc: stable@kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
Pull btrfs fixes from Chris Mason:
"Eric's rcu barrier patch fixes a long standing problem with our
unmount code hanging on to devices in workqueue helpers. Liu Bo
nailed down a difficult assertion for in-memory extent mappings."
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs:
Btrfs: fix warning of free_extent_map
Btrfs: fix warning when creating snapshots
Btrfs: return as soon as possible when edquot happens
Btrfs: return EIO if we have extent tree corruption
btrfs: use rcu_barrier() to wait for bdev puts at unmount
Btrfs: remove btrfs_try_spin_lock
Btrfs: get better concurrency for snapshot-aware defrag work
Most of the support was already there. The only thing that was missing
was the call to set the flag. Add this call.
Signed-off-by: Vlad Yasevich <vyasevic@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
If the hardware initialization fails in bnx2x_nic_load() after adding
napi objects, they would not be deleted. A subsequent attempt to unload
the bnx2x module detects a corruption in the napi list.
Add the missing napi deletion to the error path.
Signed-off-by: Michal Schmidt <mschmidt@redhat.com>
Acked-by: Dmitry Kravkov <dmitry@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
John W. Linville says:
====================
On the NFC bits, Samuel says:
"With this one we have:
- A fix for properly decreasing socket ack log.
- A timer and works cleanup upon NFC device removal.
- A monitoroing socket cleanup round from llcp_socket_release.
- A proper error report to pending sockets upon NFC device removal."
Regarding the Bluetooth bits, Gustavo says:
"I have these two patches for 3.9, these add support for two more devices to
the bluetooth drivers."
Along with those, we have a few wireless driver fixes...
Bing Zhao provides an mwifiex to prevent an out-of-bounds memory
access.
John Crispin offers a Kconfig fix to enable some otherwise dead code
in rt2x00. The correct symbols were added in -rc1 through a different
tree, but the symbols for enabling the wireless driver didn't match.
Larry Finger brings an rtlwifi fix for a scheduling while atomic bug,
and another fix for a reassociation problem caused by failing to
clear the BSSID after a disconnect.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Fix which was done in the following commit in cpsw driver has
to be taken forward to davinci emac driver as well.
commit d35162f89b
Author: Daniel Mack <zonque@gmail.com>
Date: Tue Mar 12 06:31:19 2013 +0000
net: ethernet: cpsw: fix usage of cpdma_check_free_tx_desc()
Commit fae50823d0 ("net: ethernet: davinci_cpdma: Add boundary for rx
and tx descriptors") introduced a function to check the current
allocation state of tx packets. The return value is taken into account
to stop the netqork queue on the adapter in case there are no free
slots.
However, cpdma_check_free_tx_desc() returns 'true' if there is room in
the bitmap, not 'false', so the usage of the function is wrong.
Reported-by: Prabhakar Lad <prabhakar.csengg@gmail.com>
Tested-by: Prabhakar Lad <prabhakar.csengg@gmail.com>
Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
