* A couple imx35 clock fixes for regressions caused by common clock
framework conversion. The admux and iomux get disabled by common
clock framework late initcall, and hence causes problems.
* Add missing twd clock lookup in device tree. This becomes required
since commit bd60345 (ARM: use device tree to get smp_twd clock)
forces all DT boot to find lookup from device tree.
* Fix imx6q ldb_di clock parents mismatch per reference manual.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.11 (GNU/Linux)
iQEcBAABAgAGBQJRZAZBAAoJEFBXWFqHsHzOy60H/0RIxFO1TSQVVPTuJRtHr9qk
BtszcLOwiRbWipuG1OiosEKXMeOXjAPtOG8P9tReC/oJN4WL5CmGW3PrPQ/9DEbZ
OTYVPhgmGKDB/2n5BVvvTDISTovvlQRju4ht+70j1BnAlpbzGLbKMG4o6zHOROoh
d15dqg/Ny1ovsCvva2ODbwRtBkBaBqDC+RGqNPrhTN7WSk+nv6yITYZCREI1mjGH
RG7B62hn+1aD6tMdigFu9xS4vTkHXjFC0AVEixBEi3iWqofSz3Cb6Zq4MpRGNXGZ
o/tfc4/2q6uF/UEpTQJDhYbHjwesySsIwdu4vsvI2lh9EGqUgyC3YE+VbDwOeGE=
=tztW
-----END PGP SIGNATURE-----
Merge tag 'imx-fixes-3.9-5' of git://git.linaro.org/people/shawnguo/linux-2.6 into fixes
From Shawn Guo <shawn.guo@linaro.org>:
The imx fixes for 3.9, take 5:
* A couple imx35 clock fixes for regressions caused by common clock
framework conversion. The admux and iomux get disabled by common
clock framework late initcall, and hence causes problems.
* Add missing twd clock lookup in device tree. This becomes required
since commit bd60345 (ARM: use device tree to get smp_twd clock)
forces all DT boot to find lookup from device tree.
* Fix imx6q ldb_di clock parents mismatch per reference manual.
* tag 'imx-fixes-3.9-5' of git://git.linaro.org/people/shawnguo/linux-2.6: (217 commits)
ARM i.MX6: Fix ldb_di clock selection
ARM: imx: provide twd clock lookup from device tree
ARM: imx35 Bugfix admux clock
ARM: clk-imx35: Bugfix iomux clock
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
According to the recent i.MX6 Quad technical reference manual, mode 0x4 (100b)
of the CCM_CS2DCR register (address 0x020C402C) bits [11-9] and [14-12] select
the PLL3 clock, and not the PLL3 PFD1 540M clock. In our code, the PLL3 root
clock is named 'pll3_usb_otg', select this instead of the 540M clock.
Signed-off-by: Dirk Behme <dirk.behme@de.bosch.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
While booting from device tree, imx6q used to provide twd clock lookup
by calling clk_register_clkdev() in clock driver. However, the commit
bd60345 (ARM: use device tree to get smp_twd clock) forces DT boot to
look up the clock from device tree. It causes the failure below when
twd driver tries to get the clock, and hence kernel has to calibrate the
local timer frequency.
smp_twd: clock not found -2
...
Calibrating local timer... 396.13MHz.
Fix the regression by providing twd clock lookup from device tree, and
remove the unused twd clk_register_clkdev() call from clock driver.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
The admux clock seems to be the audmux clock as tests show. audmux does
not work without this clock enabled. Currently imx35 does not register a
clock device for audmux. This patch adds this registration. imx-audmux
driver already handles a clock device, so no changes are necessary
there.
Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
Cc: stable@vger.kernel.org
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
This patch enables iomuxc_gate clock. It is necessary to be able to
reconfigure iomux pads. Without this clock enabled, the
clk_disable_unused function will disable this clock and the iomux pads
are not configurable anymore. This happens at every boot. After a reboot
(watchdog system reset) the clock is not enabled again, so all iomux pad
reconfigurations in boot code are without effect.
The iomux pads should be always configurable, so this patch always
enables it.
Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
Cc: stable@vger.kernel.org
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
- A couple mxs boards that run I2C at 400 kHz experience some unstable
issue occasionally. Slow down the clock speed to have I2C work
reliably.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.11 (GNU/Linux)
iQEcBAABAgAGBQJRXCXBAAoJEFBXWFqHsHzOqg4H/irUyWQkIfch7us/vnMQnntr
y67TFoq1ucfHDA4/Okd5YxeUWjh0vaFJTVu5JLKfuT7HGTzSeqG4sFCp/A6/i9F9
ZGbcmTUSgG3erjpzN0R+PLxWO5iqjT8Mg3/cyK83SguKtf4u/MVJq8jpTyc0JJ9R
UNj4OaKN5n7tvPGAkj8ypWDpQwlczRRie6v+Nt1qWP1K7T7Ez9ZMkhOvd7WLUi4T
H7HcWo5IOUBzLvf7JmBAQwTCTdl7BJglBO5FjTn7ao0uaMEHLJOwzPWdXs08Agzh
qMVJcWqVCcQQmB5nuDDb08mlXXEYrt/92qL3LUejJaX76bPH+lzfCnvrDGUIuvo=
=Towm
-----END PGP SIGNATURE-----
Merge tag 'mxs-fixes-3.9-4' of git://git.linaro.org/people/shawnguo/linux-2.6 into fixes
From Shawn Guo <shawn.guo@linaro.org>:
The mxs fixes for 3.9, take 4:
- A couple mxs boards that run I2C at 400 kHz experience some unstable
issue occasionally. Slow down the clock speed to have I2C work
reliably.
* tag 'mxs-fixes-3.9-4' of git://git.linaro.org/people/shawnguo/linux-2.6:
ARM: mxs: Slow down the I2C clock speed
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Pull KVM fix from Gleb Natapov:
"Bugfix for the regression introduced by commit c300aa64ddf5"
* git://git.kernel.org/pub/scm/virt/kvm/kvm:
KVM: Allow cross page reads and writes from cached translations.
Pull x86 fixes from Peter Anvin:
"Two quite small fixes: one a build problem, and the other fixes
seccomp filters on x32."
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86: Fix rebuild with EFI_STUB enabled
x86: remove the x32 syscall bitmask from syscall_get_nr()
Interrupt handlers are always invoked with interrupts disabled, so
remove all uses of the deprecated IRQF_DISABLED flag.
Cc: Richard Henderson <rth@twiddle.net>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Reviewed-by: Matt Turner <mattst88@gmail.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Michael Cree <mcree@orcon.net.nz>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linux has expected that interrupt handlers are executed with local
interrupts disabled for a while now, so ensure that this is the case on
Alpha even for non-device interrupts such as IPIs.
Without this patch, secondary boot results in the following backtrace:
warning: at kernel/softirq.c:139 __local_bh_enable+0xb8/0xd0()
trace:
__local_bh_enable+0xb8/0xd0
irq_enter+0x74/0xa0
scheduler_ipi+0x50/0x100
handle_ipi+0x84/0x260
do_entint+0x1ac/0x2e0
irq_exit+0x60/0xa0
handle_irq+0x98/0x100
do_entint+0x2c8/0x2e0
ret_from_sys_call+0x0/0x10
load_balance+0x3e4/0x870
cpu_idle+0x24/0x80
rcu_eqs_enter_common.isra.38+0x0/0x120
cpu_idle+0x40/0x80
rest_init+0xc0/0xe0
_stext+0x1c/0x20
A similar dump occurs if you try to reboot using magic-sysrq.
Cc: Richard Henderson <rth@twiddle.net>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Matt Turner <mattst88@gmail.com>
Reviewed-by: Matt Turner <mattst88@gmail.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Michael Cree <mcree@orcon.net.nz>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Due to all of the goodness being packed into today's kernels, the
resulting image isn't as slim as it once was.
In light of this, don't pass -msmall-data to gcc, which otherwise results
in link failures due to impossible relocations when compiling anything but
the most trivial configurations.
Cc: Richard Henderson <rth@twiddle.net>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Reviewed-by: Matt Turner <mattst88@gmail.com>
Tested-by: Thorsten Kranzkowski <dl8bcu@dl8bcu.de>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Michael Cree <mcree@orcon.net.nz>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Fixes a NULL pointer dereference at boot on UP1500.
Cc: stable@vger.kernel.org
Reviewed-and-Tested-by: Matt Turner <mattst88@gmail.com>
Signed-off-by: Jay Estabrook <jay.estabrook@gmail.com>
Signed-off-by: Matt Turner <mattst88@gmail.com>
Signed-off-by: Michael Cree <mcree@orcon.net.nz>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This patch adds support for kvm_gfn_to_hva_cache_init functions for
reads and writes that will cross a page. If the range falls within
the same memslot, then this will be a fast operation. If the range
is split between two memslots, then the slower kvm_read_guest and
kvm_write_guest are used.
Tested: Test against kvm_clock unit tests.
Signed-off-by: Andrew Honig <ahonig@google.com>
Signed-off-by: Gleb Natapov <gleb@redhat.com>
cache target when the device being cached is not itself wrapped with
device-mapper.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.11 (GNU/Linux)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=LUeu
-----END PGP SIGNATURE-----
Merge tag 'dm-3.9-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/agk/linux-dm
Pull device-mapper fixes from Alasdair Kergon:
"A pair of patches to fix the writethrough mode of the device-mapper
cache target when the device being cached is not itself wrapped with
device-mapper."
* tag 'dm-3.9-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/agk/linux-dm:
dm cache: reduce bio front_pad size in writeback mode
dm cache: fix writes to cache device in writethrough mode
ASPM
Revert "PCI/ACPI: Request _OSC control before scanning PCI root bus"
kexec
PCI: Don't try to disable Bus Master on disconnected PCI devices
Platform ROM images
PCI: Add PCI ROM helper for platform-provided ROM images
nouveau: Attempt to use platform-provided ROM image
radeon: Attempt to use platform-provided ROM image
Hotplug
PCI/ACPI: Always resume devices on ACPI wakeup notifications
PCI/PM: Disable runtime PM of PCIe ports
EISA
EISA/PCI: Fix bus res reference
EISA/PCI: Init EISA early, before PNP
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.11 (GNU/Linux)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=gIGr
-----END PGP SIGNATURE-----
Merge tag 'pci-v3.9-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
Pull PCI fixes from Bjorn Helgaas:
"PCI updates for v3.9:
ASPM
Revert "PCI/ACPI: Request _OSC control before scanning PCI root bus"
kexec
PCI: Don't try to disable Bus Master on disconnected PCI devices
Platform ROM images
PCI: Add PCI ROM helper for platform-provided ROM images
nouveau: Attempt to use platform-provided ROM image
radeon: Attempt to use platform-provided ROM image
Hotplug
PCI/ACPI: Always resume devices on ACPI wakeup notifications
PCI/PM: Disable runtime PM of PCIe ports
EISA
EISA/PCI: Fix bus res reference
EISA/PCI: Init EISA early, before PNP"
* tag 'pci-v3.9-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
PCI/PM: Disable runtime PM of PCIe ports
PCI/ACPI: Always resume devices on ACPI wakeup notifications
PCI: Don't try to disable Bus Master on disconnected PCI devices
Revert "PCI/ACPI: Request _OSC control before scanning PCI root bus"
radeon: Attempt to use platform-provided ROM image
nouveau: Attempt to use platform-provided ROM image
EISA/PCI: Init EISA early, before PNP
EISA/PCI: Fix bus res reference
PCI: Add PCI ROM helper for platform-provided ROM images
Pull networking fixes from David Miller:
1) Fix erroneous sock_orphan() leading to crashes and double
kfree_skb() in NFC protocol. From Thierry Escande and Samuel Ortiz.
2) Fix use after free in remain-on-channel mac80211 code, from Johannes
Berg.
3) nf_reset() needs to reset the NF tracing cookie, otherwise we can
leak it from one namespace into another. Fix from Gao Feng and
Patrick McHardy.
4) Fix overflow in channel scanning array of mwifiex driver, from Stone
Piao.
5) Fix loss of link after suspend/shutdown in r8169, from Hayes Wang.
6) Synchronization of unicast address lists to the undelying device
doesn't work because whether to sync is maintained as a boolean
rather than a true count. Fix from Vlad Yasevich.
7) Fix corruption of TSO packets in atl1e by limiting the segmented
packet length. From Hannes Frederic Sowa.
8) Revert bogus AF_UNIX credential passing change and fix the
coalescing issue properly, from Eric W Biederman.
9) Changes of ipv4 address lifetime settings needs to generate a
notification, from Jiri Pirko.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (22 commits)
netfilter: don't reset nf_trace in nf_reset()
net: ipv4: notify when address lifetime changes
ixgbe: fix registration order of driver and DCA nofitication
af_unix: If we don't care about credentials coallesce all messages
Revert "af_unix: dont send SCM_CREDENTIAL when dest socket is NULL"
bonding: remove sysfs before removing devices
atl1e: limit gso segment size to prevent generation of wrong ip length fields
net: count hw_addr syncs so that unsync works properly.
r8169: fix auto speed down issue
netfilter: ip6t_NPT: Fix translation for non-multiple of 32 prefix lengths
mwifiex: limit channel number not to overflow memory
NFC: microread: Fix build failure due to a new MEI bus API
iwlwifi: dvm: fix the passive-no-RX workaround
netfilter: nf_conntrack: fix error return code
NFC: llcp: Keep the connected socket parent pointer alive
mac80211: fix idle handling sequence
netfilter: nfnetlink_acct: return -EINVAL if object name is empty
netfilter: nfnetlink_queue: fix error return code in nfnetlink_queue_init()
netfilter: reset nf_trace in nf_reset
mac80211: fix remain-on-channel cancel crash
...
eboot.o and efi_stub_$(BITS).o didn't get added to "targets", and hence
their .cmd files don't get included by the build machinery, leading to
the files always getting rebuilt.
Rather than adding the two files individually, take the opportunity and
add $(VMLINUX_OBJS) to "targets" instead, thus allowing the assignment
at the top of the file to be shrunk quite a bit.
At the same time, remove a pointless flags override line - the variable
assigned to was misspelled anyway, and the options added are
meaningless for assembly sources.
[ hpa: the patch is not minimal, but I am taking it for -urgent anyway
since the excess impact of the patch seems to be small enough. ]
Signed-off-by: Jan Beulich <jbeulich@suse.com>
Link: http://lkml.kernel.org/r/515C5D2502000078000CA6AD@nat28.tlf.novell.com
Cc: Matthew Garrett <mjg@redhat.com>
Cc: Matt Fleming <matt.fleming@intel.com>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Commit 130549fe ("netfilter: reset nf_trace in nf_reset") added code
to reset nf_trace in nf_reset(). This is wrong and unnecessary.
nf_reset() is used in the following cases:
- when passing packets up the the socket layer, at which point we want to
release all netfilter references that might keep modules pinned while
the packet is queued. nf_trace doesn't matter anymore at this point.
- when encapsulating or decapsulating IPsec packets. We want to continue
tracing these packets after IPsec processing.
- when passing packets through virtual network devices. Only devices on
that encapsulate in IPv4/v6 matter since otherwise nf_trace is not
used anymore. Its not entirely clear whether those packets should
be traced after that, however we've always done that.
- when passing packets through virtual network devices that make the
packet cross network namespace boundaries. This is the only cases
where we clearly want to reset nf_trace and is also what the
original patch intended to fix.
Add a new function nf_reset_trace() and use it in dev_forward_skb() to
fix this properly.
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Pull MIPS fixes from Ralf Baechle:
"Fixes for a number of small glitches in various corners of the MIPS
tree. No particular areas is standing out.
With this applied all MIPS defconfigs are building fine. No merge
conflicts are expected."
* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus:
MIPS: Delete definition of SA_RESTORER.
MIPS: Fix ISA level which causes secondary cache init bypassing and more
MIPS: Fix build error cavium-octeon without CONFIG_SMP
MIPS: Kconfig: Rename SNIPROM too
MIPS: Alchemy: Fix typo "CONFIG_DEBUG_PCI"
MIPS: Unbreak function tracer for 64-bit kernel.
Pull GFS2 fixes from Steven Whitehouse:
"There are two patches which fix up a couple of minor issues in the DLM
interface code, a missing error path in gfs2_rs_alloc(), one patch
which fixes a problem during "withdraw" and a fix for discards/FITRIM
when using 4k sector sized devices."
* git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-3.0-fixes:
GFS2: Issue discards in 512b sectors
GFS2: Fix unlock of fcntl locks during withdrawn state
GFS2: return error if malloc failed in gfs2_rs_alloc()
GFS2: use memchr_inv
GFS2: use kmalloc for lvb bitmap
Commit e2eed58b4f ("IB/qib: change QLogic to Intel") moved a firmware
file potentially breaking the ABI.
This patch reverts that aspect of the fix as well as reverting the
firmware name as used in qib.
Reported-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
A bunch of small driver fixes plus a fix for error handling in the core
- nothing too exciting overall.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.12 (GNU/Linux)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=eqgv
-----END PGP SIGNATURE-----
Merge tag 'spi-fix-v3.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/misc
Pull spi fixes from Mark Brown:
"A bunch of small driver fixes plus a fix for error handling in the
core - nothing too exciting overall."
* tag 'spi-fix-v3.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/misc:
spi/mpc512x-psc: optionally keep PSC SS asserted across xfer segmensts
spi: Unlock a spinlock before calling into the controller driver.
spi/s3c64xx: modified error interrupt handling and init
spi/bcm63xx: don't disable non enabled clocks in probe error path
spi/bcm63xx: Remove unused variable
spi: slink-tegra20: move runtime pm calls to transfer_one_message
This patch changes GFS2's discard issuing code so that it calls
function sb_issue_discard rather than blkdev_issue_discard. The
code was calling blkdev_issue_discard and specifying the correct
sector offset and sector size, but blkdev_issue_discard expects
these values to be in terms of 512 byte sectors, even if the native
sector size for the device is different. Calling sb_issue_discard
with the BLOCK size instead ensures the correct block-to-512b-sector
translation. I verified that "minlen" is specified in blocks, so
comparing it to a number of blocks is correct.
Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
This reverts commit 0ef1594c01.
This patch introduced a few races which cannot be easily fixed with a
small follow-up patch. Furthermore, the SoC with the broken hardware
register, which this patch intended to add support for, can only be used
with device trees, which this driver currently does not support.
[ Here is the discussion that led to this "revert" patch:
https://lkml.org/lkml/2013/4/3/176 ]
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.11 (GNU/Linux)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=lKy5
-----END PGP SIGNATURE-----
Merge tag 'fbdev-fixes-3.9-rc6' of git://gitorious.org/linux-omap-dss2/linux
Pull fbdev fixes from Tomi Valkeinen:
"Fix uvesafb crash bug and typoed flag name in fbmon's new videomode
code"
* tag 'fbdev-fixes-3.9-rc6' of git://gitorious.org/linux-omap-dss2/linux:
video:uvesafb: Fix dereference NULL pointer code path
fbmon: use VESA_DMT_VSYNC_HIGH to fix typo
This contains slightly more volumes than usual at this stage, mostly
because of my vacation in the last week.
Nothing to scare, all small and/or trivial fixes:
- Fix loop path handling in ASoC DAPM
- Some memory handling fixes in ASoC core
- Fix spear_pcm to adapt to the updated API
- HD-audio HDMI ELD handling fixes
- Fix for CM6331 USB-audio SRC change bugs
- Revert power_save_controller option change due to user-space usage
- A few other small ASoC and HD-audio fixes
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.19 (GNU/Linux)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=L1Ya
-----END PGP SIGNATURE-----
Merge tag 'sound-3.9' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"This contains slightly more volumes than usual at this stage, mostly
because of my vacation in the last week. Nothing to scare, all small
and/or trivial fixes:
- Fix loop path handling in ASoC DAPM
- Some memory handling fixes in ASoC core
- Fix spear_pcm to adapt to the updated API
- HD-audio HDMI ELD handling fixes
- Fix for CM6331 USB-audio SRC change bugs
- Revert power_save_controller option change due to user-space usage
- A few other small ASoC and HD-audio fixes"
* tag 'sound-3.9' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: hda/generic - fix uninitialized variable
Revert "ALSA: hda - Allow power_save_controller option override DCAPS"
ALSA: hda - fix typo in proc output
ALSA: hda - Enabling Realtek ALC 671 codec
ALSA: usb: Work around CM6631 sample rate change bug
ALSA: hda - bug fix on HDMI ELD debug message
ALSA: hda - bug fix on return value when getting HDMI ELD info
ASoC: dma-sh7760: Fix compile error
ASoC: core: fix invalid free of devm_ allocated data
ASoC: spear_pcm: Update to new pcm_new() API
ASoC:: max98090: Remove executable bit
ASoC: dapm: Fix pointer dereference in is_connected_output_ep()
ASoC: pcm030 audio fabric: remove __init from probe
ASoC: imx-ssi: Fix occasional AC97 reset failure
ASoC: core: fix possible memory leak in snd_soc_bytes_put()
ASoC: wm_adsp: fix possible memory leak in wm_adsp_load_coeff()
ASoC: dapm: Fix handling of loops
ASoC: si476x: Add missing break for SNDRV_PCM_FORMAT_S8 switch case
A recent patch to fix the dm cache target's writethrough mode extended
the bio's front_pad to include a 1056-byte struct dm_bio_details.
Writeback mode doesn't need this, so this patch reduces the
per_bio_data_size to 16 bytes in this case instead of 1096.
The dm_bio_details structure was added in "dm cache: fix writes to
cache device in writethrough mode" which fixed commit e2e74d617e ("dm
cache: fix race in writethrough implementation"). In writeback mode
we avoid allocating the writethrough-specific members of the
per_bio_data structure (the dm_bio_details structure included).
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
The dm-cache writethrough strategy introduced by commit e2e74d617e
("dm cache: fix race in writethrough implementation") issues a bio to
the origin device, remaps and then issues the bio to the cache device.
This more conservative in-series approach was selected to favor
correctness over performance (of the previous parallel writethrough).
However, this in-series implementation that reuses the same bio to write
both the origin and cache device didn't take into account that the block
layer's req_bio_endio() modifies a completing bio's bi_sector and
bi_size. So the new writethrough strategy needs to preserve these bio
fields, and restore them before submission to the cache device,
otherwise nothing gets written to the cache (because bi_size is 0).
This patch adds a struct dm_bio_details field to struct per_bio_data,
and uses dm_bio_record() and dm_bio_restore() to ensure the bio is
restored before reissuing to the cache device. Adding such a large
structure to the per_bio_data is not ideal but we can improve this
later, for now correctness is the important thing.
This problem initially went unnoticed because the dm-cache test-suite
uses a linear DM device for the dm-cache device's origin device.
Writethrough worked as expected because DM submits a *clone* of the
original bio, so the original bio which was reused for the cache was
never touched.
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Joe Thornber <ejt@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
SA_RESTORER used to be defined as 0x04000000 but only the O32 ABI ever
supported its use and no libc was using it, so the entire sa-restorer
functionality was removed with lmo commit 39bffc12c3580ab [Zap sa_restorer.]
for 2.5.48 retaining only the SA_RESTORER definition as a reminder to avoid
accidental reuse of the mask bit.
Upstream cdef9602fb [signal: always clear
sa_restorer on execve] adds code that assumes sa_sigaction has an
sa_restorer field, if SA_RESTORER is defined which would break MIPS.
So remove the SA_RESTORER definition before the v3.8.4 merge.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
(cherry picked from commit 17da8d63add23830892ac4dc2cbb3b5d4ffb79a8)
The commit a96102be70 introduced set_isa() where compatible ISA info is
also set aside from the one gets passed in. It means, for example, 1004K
will have MIPS_CPU_ISA_M32R2/M32R1/II/I flags. This leads to things like
the following inappropriate:
if (c->isa_level == MIPS_CPU_ISA_M32R1 ||
c->isa_level == MIPS_CPU_ISA_M32R2 ||
c->isa_level == MIPS_CPU_ISA_M64R1 ||
c->isa_level == MIPS_CPU_ISA_M64R2)
This patch fixes it.
Signed-off-by: Deng-Cheng Zhu <dengcheng.zhu@imgtec.com>
Cc: Steven J. Hill <Steven.Hill@imgtec.com>
Cc: linux-mips@linux-mips.org
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Commit 7517de3486 ("MIPS: Alchemy: Redo
PCI as platform driver") added a reference to CONFIG_DEBUG_PCI. Change
it to CONFIG_PCI_DEBUG, as that is a valid Kconfig macro.
Also add a newline to a debugging printk that this fix enables.
Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Cc: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Commit 58b69401c7 [MIPS: Function tracer: Fix broken function tracing]
completely broke the function tracer for 64-bit kernels. The symptom is
a system hang very early in the boot process.
The fix: Remove/fix $sp adjustments for 64-bit case.
Signed-off-by: David Daney <david.daney@cavium.com>
Cc: linux-mips@linux-mips.org
Cc: Al Cooper <alcooperx@gmail.com>
Cc: viric@viric.name
Cc: stable@vger.kernel.org # 3.8.x
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
changed is not initialized in path_power_down_sync, but it is expected
to be false in case no change happened in the loop. So set it to
false.
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
if userspace changes lifetime of address, send netlink notification and
call notifier.
Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: David S. Miller <davem@davemloft.net>
ixgbe_notify_dca cannot be called before driver registration
because it expects driver's klist_devices to be allocated and
initialized. While on it make sure debugfs files are removed
when registration fails.
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Jakub Kicinski <jakub.kicinski@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
It was reported that the following LSB test case failed
https://lsbbugs.linuxfoundation.org/attachment.cgi?id=2144 because we
were not coallescing unix stream messages when the application was
expecting us to.
The problem was that the first send was before the socket was accepted
and thus sock->sk_socket was NULL in maybe_add_creds, and the second
send after the socket was accepted had a non-NULL value for sk->socket
and thus we could tell the credentials were not needed so we did not
bother.
The unnecessary credentials on the first message cause
unix_stream_recvmsg to start verifying that all messages had the same
credentials before coallescing and then the coallescing failed because
the second message had no credentials.
Ignoring credentials when we don't care in unix_stream_recvmsg fixes a
long standing pessimization which would fail to coallesce messages when
reading from a unix stream socket if the senders were different even if
we did not care about their credentials.
I have tested this and verified that the in the LSB test case mentioned
above that the messages do coallesce now, while the were failing to
coallesce without this change.
Reported-by: Karel Srot <ksrot@redhat.com>
Reported-by: Ding Tianhong <dingtianhong@huawei.com>
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This reverts commit 14134f6584.
The problem that the above patch was meant to address is that af_unix
messages are not being coallesced because we are sending unnecesarry
credentials. Not sending credentials in maybe_add_creds totally
breaks unconnected unix domain sockets that wish to send credentails
to other sockets.
In practice this break some versions of udev because they receive a
message and the sending uid is bogus so they drop the message.
Reported-by: Sven Joachim <svenjoac@gmx.de>
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
We have a race condition if we try to rmmod bonding and simultaneously add
a bond master through sysfs. In bonding_exit() we first remove the devices
(through rtnl_link_unregister() ) and only after that we remove the sysfs.
If we manage to add a device through sysfs after that the devices were
removed - we'll end up with that device/sysfs structure and with the module
unloaded.
Fix this by first removing the sysfs and only after that calling
rtnl_link_unregister().
Signed-off-by: Veaceslav Falico <vfalico@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The limit of 0x3c00 is taken from the windows driver.
Suggested-by: Huang, Xiong <xiong@qca.qualcomm.com>
Cc: Huang, Xiong <xiong@qca.qualcomm.com>
Cc: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
A few drivers use dev_uc_sync/unsync to synchronize the
address lists from master down to slave/lower devices. In
some cases (bond/team) a single address list is synched down
to multiple devices. At the time of unsync, we have a leak
in these lower devices, because "synced" is treated as a
boolean and the address will not be unsynced for anything after
the first device/call.
Treat "synced" as a count (same as refcount) and allow all
unsync calls to work.
Signed-off-by: Vlad Yasevich <vyasevic@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
- Revert of a recent cpuidle change that caused Nehalem machines
to hang on boot from Alex Shi.
- USB power management fix addressing a crash in the port device
object's release routine from Rafael J. Wysocki.
- Device PM QoS fix for a potential deadlock related to sysfs
interface from Rafael J. Wysocki.
- Fix for a cpufreq crash when the /cpus Device Tree node is missing
from Paolo Pisati.
- Fix for a build issue on ia64 related to the Boot Graphics Resource
Table (BGRT) from Tony Luck.
- Two fixes for ACPI handles being set incorrectly for device
objects that don't correspond to any ACPI namespace nodes in
the I2C and SPI subsystems from Rafael J. Wysocki.
- Fix for compiler warnings related to CONFIG_PM_DEVFREQ being
unset from Rajagopal Venkat.
- Fix for a symbol definition typo in cpufreq_governor.h from
Borislav Petkov.
/
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.19 (GNU/Linux)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=s/w4
-----END PGP SIGNATURE-----
Merge tag 'pm+acpi-3.9-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI and power management fixes from Rafael Wysocki:
- Revert of a recent cpuidle change that caused Nehalem machines to
hang on boot from Alex Shi.
- USB power management fix addressing a crash in the port device
object's release routine from Rafael J Wysocki.
- Device PM QoS fix for a potential deadlock related to sysfs interface
from Rafael J Wysocki.
- Fix for a cpufreq crash when the /cpus Device Tree node is missing
from Paolo Pisati.
- Fix for a build issue on ia64 related to the Boot Graphics Resource
Table (BGRT) from Tony Luck.
- Two fixes for ACPI handles being set incorrectly for device objects
that don't correspond to any ACPI namespace nodes in the I2C and SPI
subsystems from Rafael J Wysocki.
- Fix for compiler warnings related to CONFIG_PM_DEVFREQ being unset
from Rajagopal Venkat.
- Fix for a symbol definition typo in cpufreq_governor.h from Borislav
Petkov.
* tag 'pm+acpi-3.9-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
ACPI / BGRT: Don't let users configure BGRT on non X86 systems
cpuidle / ACPI: recover percpu ACPI processor cstate
ACPI / I2C: Use parent's ACPI_HANDLE() in acpi_i2c_register_devices()
cpufreq: Correct header guards typo
ACPI / SPI: Use parent's ACPI_HANDLE() in acpi_register_spi_devices()
cpufreq: check OF node /cpus presence before dereferencing it
PM / devfreq: Fix compiler warnings for CONFIG_PM_DEVFREQ unset
PM / QoS: Avoid possible deadlock related to sysfs access
USB / PM: Don't try to hide PM QoS flags from usb_port_device_release()
It would cause no link after suspending or shutdowning when the
nic changes the speed to 10M and connects to a link partner which
forces the speed to 100M.
Check the link partner ability to determine which speed to set.
Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Acked-by: Francois Romieu <romieu@fr.zoreil.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Pablo Neira Ayuso says:
====================
The following patchset contains netfilter updates for your net tree,
they are:
* Fix missing the skb->trace reset in nf_reset, noticed by Gao Feng
while using the TRACE target with several net namespaces.
* Fix prefix translation in IPv6 NPT if non-multiple of 32 prefixes
are used, from Matthias Schiffer.
* Fix invalid nfacct objects with empty name, they are now rejected
with -EINVAL, spotted by Michael Zintakis, patch from myself.
* A couple of fixes for wrong return values in the error path of
nfnetlink_queue and nf_conntrack, from Wei Yongjun.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
John W. Linville says:
====================
Here are some more fixes intended for the 3.9 stream...
Regarding the mac80211 bits, Johannes says:
"I had changed the idle handling to simplify it, but broken the
sequencing of commands, at least for ath9k-htc, one patch restores the
sequence. The other patch fixes a crash Jouni found while stress-testing
the remain-on-channel code, when an item is deleted the work struct can
run twice and crash the second time."
As for the iwlwifi bits, Johannes says:
"The only fix here is to the passive-no-RX firmware regulatory
enforcement driver support code to not drop auth frames in quick
succession, leading to not being able to connect to APs on passive
channels in certain circumstances."
Don't forget the NFC bits, about which Samuel says:
"This time we have:
- A crash fix for when a DGRAM LLCP socket is listening while the NFC adapter
is physically removed.
- A potential double skb free when the LLCP socket receive queue is full.
- A fix for properly handling multiple and consecutive LLCP connections, and
not trash the socket ack log.
- A build failure for the MEI microread physical layer, now that the MEI bus
APIs have been merged into char-misc-next."
On top of that, Stone Piao provides an mwifiex fix to avoid accessing
beyond the end of a buffer.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
find_vma() can be called by multiple threads with read lock
held on mm->mmap_sem and any of them can update mm->mmap_cache.
Prevent compiler from re-fetching mm->mmap_cache, because other
readers could update it in the meantime:
thread 1 thread 2
|
find_vma() | find_vma()
struct vm_area_struct *vma = NULL; |
vma = mm->mmap_cache; |
if (!(vma && vma->vm_end > addr |
&& vma->vm_start <= addr)) { |
| mm->mmap_cache = vma;
return vma; |
^^ compiler may optimize this |
local variable out and re-read |
mm->mmap_cache |
This issue can be reproduced with gcc-4.8.0-1 on s390x by running
mallocstress testcase from LTP, which triggers:
kernel BUG at mm/rmap.c:1088!
Call Trace:
([<000003d100c57000>] 0x3d100c57000)
[<000000000023a1c0>] do_wp_page+0x2fc/0xa88
[<000000000023baae>] handle_pte_fault+0x41a/0xac8
[<000000000023d832>] handle_mm_fault+0x17a/0x268
[<000000000060507a>] do_protection_exception+0x1e2/0x394
[<0000000000603a04>] pgm_check_handler+0x138/0x13c
[<000003fffcf1f07a>] 0x3fffcf1f07a
Last Breaking-Event-Address:
[<000000000024755e>] page_add_new_anon_rmap+0xc2/0x168
Thanks to Jakub Jelinek for his insight on gcc and helping to
track this down.
Signed-off-by: Jan Stancek <jstancek@redhat.com>
Acked-by: David Rientjes <rientjes@google.com>
Signed-off-by: Hugh Dickins <hughd@google.com>
Cc: stable@vger.kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
mounted R/O and then remounted R/W.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.12 (GNU/Linux)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=79wn
-----END PGP SIGNATURE-----
Merge tag 'upstream-3.9-rc6' of git://git.infradead.org/linux-ubifs
Pull UBIFS fix from Artem Bityutskiy:
"Make the space fixup feature work in the case when the file-system is
first mounted R/O and then remounted R/W."
* tag 'upstream-3.9-rc6' of git://git.infradead.org/linux-ubifs:
UBIFS: make space fixup work in the remount case
* pm-fixes:
cpufreq: Correct header guards typo
cpufreq: check OF node /cpus presence before dereferencing it
PM / devfreq: Fix compiler warnings for CONFIG_PM_DEVFREQ unset
PM / QoS: Avoid possible deadlock related to sysfs access
USB / PM: Don't try to hide PM QoS flags from usb_port_device_release()
Arnd Bergmann
Dirk Behme
Shawn Guo
Markus Pargmann
Linus Torvalds
Will Deacon
Jay Estabrook
Andrew Honig
Jan Beulich
Patrick McHardy
Mike Marciniszyn
Bob Peterson
Johan Hovold
Mike Snitzer
Darrick J. Wong
Ralf Baechle
Deng-Cheng Zhu
EunBong Song
Paul Bolle
David Daney
Jiri Slaby
Jiri Pirko
Jakub Kicinski
Eric W. Biederman
Veaceslav Falico
Hannes Frederic Sowa
Vlad Yasevich
hayeswang
David S. Miller
Jan Stancek
Rafael J. Wysocki