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GFS2: Fix unlock of fcntl locks during withdrawn state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.
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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>
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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
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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
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 cdef9602fbf1871a43f0f1b5cea10dd0f275167d [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>
- 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.
/
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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()
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.
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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()
* acpi-fixes:
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()
ACPI / SPI: Use parent's ACPI_HANDLE() in acpi_register_spi_devices()
Pull HID fixes from Jiri Kosina:
- Workaround for device ID conflict between Masterkit MA901 usb radio
device and Atmel V-USB devices, to avoid regressions from older
kernels, by Alexey Klimov
- fix for possible race during input device registration in magicmouse
driver, by Benjamin Tissoires
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid:
HID: magicmouse: fix race between input_register() and probe()
media: radio-ma901: return ENODEV in probe if usb_device doesn't match
HID: fix Masterkit MA901 hid quirks
- Fix erroneous return value in the ICH driver
- Make the STMPE driver proper properly on device tree boots
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Merge tag 'gpio-fixes-v3.9' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio
Pull GPIO fixes from Linus Walleij:
"Two GPIO fixes for the v3.9 series:
- Fix erroneous return value in the ICH driver
- Make the STMPE driver proper properly on device tree boots"
* tag 'gpio-fixes-v3.9' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio:
gpio: stmpe: pass DT node to irqdomain
gpio-ich: Fix value returned by ichx_gpio_request
This reverts commit 6ab317419c.
The commit [6ab317419c: ALSA: hda - Allow power_save_controller option
override DCAPS] changed the behavior of power_save_controller so that
it can override the driver capability. This assumed that this option
is rarely changed dynamically unlike power_save option. Too naive.
It turned out that the user-space power-management tool tries to set
power_save_controller option to 1 together with power_save option
without knowing what's actually doing. This enabled forcibly the
runtime PM of the controller, which is known to be broken om many
chips thus disabled as default.
So, the only sane fix is to revert this commit again. It was intended
to ease debugging/testing for runtime PM enablement, but obviously we
need another way for it.
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=56171
Reported-and-tested-by: Nikita Tsukanov <keks9n@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Rename "Digitial In" to "Digital In". This function is only used for
proc output, so should not cause any problems to change.
Signed-off-by: David Henningsson <david.henningsson@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
When withdraw occurs, we need to continue to allow unlocks of fcntl
locks to occur, however these will only be local, since the node has
withdrawn from the cluster. This prevents triggering a VFS level
bug trap due to locks remaining when a file is closed.
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
The error code in gfs2_rs_alloc() is set to ENOMEM when error
but never be used, instead, gfs2_rs_alloc() always return 0.
Fix to return 'error'.
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
Use memchr_inv to verify that the specified memory range is cleared.
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: Steven Whitehouse <swhiteho@redhat.com>
Cc: cluster-devel@redhat.com
Cc: Christine Caulfield <ccaulfie@redhat.com>
Cc: David Teigland <teigland@redhat.com>
The temp lvb bitmap was on the stack, which could
be an alignment problem for __set_bit_le. Use
kmalloc for it instead.
Signed-off-by: David Teigland <teigland@redhat.com>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
Since kernel 3.7, it appears that the input registration occured before
the end of magicmouse_setup_input(). This is shown by receiving a lot of
"EV_SYN SYN_REPORT 1" instead of normal "EV_SYN SYN_REPORT 0".
This value means that the output buffer is full, and the user space
is loosing events.
Using .input_configured guarantees that the race is not occuring, and that
the call of "input_set_events_per_packet(input, 60)" is taken into account
by input_register().
Fixes:
https://bugzilla.redhat.com/show_bug.cgi?id=908604
Cc: stable@vger.kernel.org
Reported-and-Tested-By: Clarke Wixon <cwixon@usa.net>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* Added the device ID to the modalias list and assinged ALC662 patches
for it
* Added 4 port support for the device ID 0671 in alc662_parse_auto_config
Signed-off-by: Rainer Koenig <Rainer.Koenig@ts.fujitsu.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Pull ARM fixes from Russell King:
"Another round of ARM fixes, which include:
- Fixing a problem with LPAE mapping sections
- Reporting of some hwcaps on Krait CPUs
- Avoiding repetitive warnings in the breakpoint code
- Fixing a build error noticed on Dove platforms with PJ4 CPUs
- Fix masking of level 2 cache revision.
- Fixing timer-based udelay()
- A larger fix for an erratum causing people major grief with Cortex
A15 CPUs"
* 'fixes' of git://git.linaro.org/people/rmk/linux-arm:
ARM: 7690/1: mm: fix CONFIG_LPAE typos
ARM: 7689/1: add unwind annotations to ftrace asm
ARM: 7685/1: delay: use private ticks_per_jiffy field for timer-based delay ops
ARM: 7684/1: errata: Workaround for Cortex-A15 erratum 798181 (TLBI/DSB operations)
ARM: 7682/1: cache-l2x0: fix masking of RTL revision numbering and set_debug init
ARM: iWMMXt: always enable iWMMXt support with PJ4 CPUs
ARM: 7681/1: hw_breakpoint: use warn_once to avoid spam from reset_ctrl_regs()
ARM: 7678/1: Work around faulty ISAR0 register in some Krait CPUs
ARM: 7680/1: Detect support for SDIV/UDIV from ISAR0 register
ARM: 7679/1: Clear IDIVT hwcap if CONFIG_ARM_THUMB=n
ARM: 7677/1: LPAE: Fix mapping in alloc_init_section for unaligned addresses
ARM: KVM: vgic: take distributor lock on sync_hwstate path
ARM: KVM: vgic: force EOIed LRs to the empty state
merge window. Fortunately, Cai and Christian noticed before 3.9
shipped.
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Merge tag 'ext4_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
Pull ext4 fixes from Ted Ts'o:
"Unfortunately, we introduced some big-endian bugs during the last
merge window. Fortunately, Cai and Christian noticed before 3.9
shipped."
* tag 'ext4_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
ext4: fix big-endian bugs which could cause fs corruptions
Pull reiserfs fix from Jan Kara:
"A fix for reiserfs xattr bug exposed by changes to lookup_one_len()"
* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
reiserfs: Fix warning and inode leak when deleting inode with xattrs
Pull s390 fixes from Martin Schwidefsky:
"Just a bunch of bugfixes"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
s390/mm: provide emtpy check_pgt_cache() function
s390/uaccess: fix page table walk
s390/3270: fix minor_start issue
s390/uaccess: fix clear_user_pt()
s390/scm_blk: fix error return code in scm_blk_init()
s390/scm_block: fix printk format string
drivers/Kconfig: add several missing GENERIC_HARDIRQS dependencies
When an extent was zeroed out, we forgot to do convert from cpu to le16.
It could make us hit a BUG_ON when we try to write dirty pages out. So
fix it.
[ Also fix a bug found by Dmitry Monakhov where we were missing
le32_to_cpu() calls in the new indirect punch hole code.
There are a number of other big endian warnings found by static code
analyzers, but we'll wait for the next merge window to fix them all
up. These fixes are designed to be Obviously Correct by code
inspection, and easy to demonstrate that it won't make any
difference (and hence, won't introduce any bugs) on little endian
architectures such as x86. --tytso ]
Signed-off-by: Zheng Liu <wenqing.lz@taobao.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Reported-by: CAI Qian <caiqian@redhat.com>
Reported-by: Christian Kujau <lists@nerdbynature.de>
Cc: Dmitry Monakhov <dmonakhov@openvz.org>
CONFIG_LPAE doesn't exist: the correct option is CONFIG_ARM_LPAE, so fix
up the two typos under arch/arm/.
The fix to head.S is slightly scary, but this is just for setting up
an early io-mapping for the serial port when running on a big-endian,
LPAE system. Since these systems don't exist in the wild (at least, I
have no access to one outside of kvmtool, which doesn't provide a serial
port suitable for earlyprintk), then we can revisit the code later if it
causes any problems.
Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Add unwind annotations to the ftrace assembly code so that the function
tracer's stacktracing options (func_stack_trace, etc.) work when
CONFIG_ARM_UNWIND is enabled.
Signed-off-by: Rabin Vincent <rabin@rab.in>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Commit 70264367a2 ("ARM: 7653/2: do not scale loops_per_jiffy when
using a constant delay clock") fixed a problem with our timer-based
delay loop, where loops_per_jiffy is scaled by cpufreq yet used directly
by the timer delay ops.
This patch fixes the problem in a more elegant way by keeping a private
ticks_per_jiffy field in the delay ops, independent of loops_per_jiffy
and therefore not subject to scaling. The loop-based delay continues to
use loops_per_jiffy directly, as it should.
Acked-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
On Cortex-A15 (r0p0..r3p2) the TLBI/DSB are not adequately shooting down
all use of the old entries. This patch implements the erratum workaround
which consists of:
1. Dummy TLBIMVAIS and DSB on the CPU doing the TLBI operation.
2. Send IPI to the CPUs that are running the same mm (and ASID) as the
one being invalidated (or all the online CPUs for global pages).
3. CPU receiving the IPI executes a DMB and CLREX (part of the exception
return code already).
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Commit b8db6b8 (ARM: 7547/4: cache-l2x0: add support for Aurora L2 cache
ctrl) moved the masking of the part ID which caused the RTL version to be
lost. Commit 6248d06 (ARM: 7545/1: cache-l2x0: make outer_cache_fns a
field of l2x0_of_data) changed how .set_debug is initialized. Both commits
break commit 74ddcdb (ARM: 7608/1: l2x0: Only set .set_debug
on PL310 r3p0 and earlier) which uses the RTL version to conditionally set
.set_debug function pointer. Commit b8db6b8 also caused the printed cache
ID to be missing the version information.
Fix this by reverting how the part number is masked so the RTL version
info is maintained. The cache-id-part DT property does not set the RTL
bits so masking them should have no effect. Also, re-arrange the order
of the function pointer init so the .set_debug function can be overridden.
Reported-by: Paolo Pisati <paolo.pisati@canonical.com>
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Cc: Gregory CLEMENT <gregory.clement@free-electrons.com>
Cc: Yehuda Yitschak <yehuday@marvell.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Jason Cooper reports these build errors:
arch/arm/kernel/built-in.o: In function `iwmmxt_do':
/.../arch/arm/kernel/pj4-cp0.c:36: undefined reference to `iwmmxt_task_release'
/.../arch/arm/kernel/pj4-cp0.c:40: undefined reference to `iwmmxt_task_switch'
make: *** [vmlinux] Error 1
This is caused because the PJ4 code explicitly references the iWMMXt
code, but doesn't require it to be built. Fix this by ensuring that
iWMMXt is always enabled with PJ4.
Reported-by: Jason Cooper <jason@lakedaemon.net>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
The C-Media CM6631 USB receiver doesn't respond to changes in sample rate
while the interface is active. The same behavior is observed in other UAC2
hardware like the VIA VT1731.
Reset the interface after setting the sampling frequency on sample rate
changes, to ensure that the sample rate set by snd_usb_init_sample_rate() is
used. Otherwise, the device will try to use the sample rate of the previous
stream, causing distorted sound on sample rate changes.
The reset is performed for all UAC2 devices, as it should not affect a
standards compliant device, but it is only necessary for C-Media CM6631,
VIA VT1731 and possibly others.
Failure to read sample rate from the device is not handled as an error in
set_sample_rate_v2(), as (permanent or intermittent) failure to read sample
rate isn't essential for a successful sample rate set.
Signed-off-by: Torstein Hegge <hegge@resisty.net>
Acked-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Fengguang Wu's 0-Day kernel build testing backend found the
following build error for an allmodconfig build on ia64:
drivers/built-in.o: In function `show_yoffset':
>> bgrt.c:(.text+0xe5a71): undefined reference to `bgrt_tab'
>> bgrt.c:(.text+0xe5a91): undefined reference to `bgrt_tab'
drivers/built-in.o: In function `show_xoffset':
>> bgrt.c:(.text+0xe5b51): undefined reference to `bgrt_tab'
>> bgrt.c:(.text+0xe5b71): undefined reference to `bgrt_tab'
drivers/built-in.o: In function `show_type':
>> bgrt.c:(.text+0xe5c31): undefined reference to `bgrt_tab'
drivers/built-in.o:bgrt.c:(.text+0xe5c51): more undefined references to `bgrt_tab' follow
drivers/built-in.o: In function `bgrt_init':
bgrt.c:(.init.text+0x8931): undefined reference to `bgrt_image'
bgrt.c:(.init.text+0x8932): undefined reference to `bgrt_image_size'
bgrt.c:(.init.text+0x8950): undefined reference to `bgrt_image'
bgrt.c:(.init.text+0x8960): undefined reference to `bgrt_image_size'
The problem is that all these undefined names are provided by
arch/x86/platform/efi/efi-bgrt.c - which is obviously not available
to the ia64 build.
It doesn't seem useful to provide the BGRT support for Itanium
(many systems are headless and have no graphics at all). So
just don't let users configure this driver on non-X86 machines.
Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Acked-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Pull networking fixes from David Miller:
1) Fix VSOCK layer handling of context ID changes, from Reilly Grant.
2) Now that we have a synchronize_net() in netdev_rx_handler_unregister(),
we can't let any call sites hold locks. Unfortunately bonding does,
so we have to drop the rwlock there a little bit earlier, fix from
Veaceslav Falico.
3) MAC address setting loop exits one iteration too early in mlx4
driver, from Yan Burman.
4) Restore ipv6 routes properly upon ifdown/ifup of loopback, from
Balakumaran Kannan.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net:
VSOCK: Handle changes to the VMCI context ID.
net IPv6 : Fix broken IPv6 routing table after loopback down-up
cbq: incorrect processing of high limits
net/mlx4_en: Fix setting initial MAC address
bonding: get netdev_rx_handler_unregister out of locks
A small collection of fixes. The most important ones are those from
Stephen and Lars-Peter both of which fix cache issues that have been
lurking for a while but not manifesting noticably enough for anyone to
report them.
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Merge tag 'regmap-v3.9-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap
Pull regmap fixes from Mark Brown:
"A small collection of fixes. The most important ones are those from
Stephen and Lars-Peter both of which fix cache issues that have been
lurking for a while but not manifesting noticably enough for anyone to
report them."
* tag 'regmap-v3.9-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap:
regmap: async: Add missing return
regmap: don't corrupt work buffer in _regmap_raw_write()
regmap: cache Fix regcache-rbtree sync
regmap: Initialize `map->debugfs' before regcache
Pull DRM fixes from Dave Airlie:
"Two core fixes, both regressions, along with some intel and some
nouveau fixes for regressions and oopses"
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
drm: correctly restore mappings if drm_open fails
drm/nouveau: fix NULL ptr dereference from nv50_disp_intr()
drm/nouveau: fix handling empty channel list in ioctl's
drm: don't unlock in the addfb error paths
drm/i915: Fix build failure
drm/i915: Be sure to turn hsync/vsync back on at crt enable (v2)
drm/i915: duct-tape locking when eDP init fails
Pull MIPS fixes from Ralf Baechle:
"A collection of fixes pretty much across the MIPS code. Even the
change to include/linux/signal.h by David Howells' 2a1486981c ("Fix
breakage in MIPS siginfo handling") should be considered MIPS-specific
as it touches an ifdefed segment that is only relevant to MIPS and
which unfortunately can't be made to go away entirely."
* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus:
Fix breakage in MIPS siginfo handling
Revert "MIPS: BCM63XX: Call board_register_device from device_initcall()"
MIPS: BCM63XX: Make nvram checksum failure non fatal
MIPS: Fix code generation for non-DSP capable CPUs
MIPS: Fix inconsistent formatting inside /proc/cpuinfo
MIPS: SEAD3: Enable LL/SC.
MIPS: Get rid of CONFIG_CPU_HAS_LLSC again
MIPS: Add dependencies for HAVE_ARCH_TRANSPARENT_HUGEPAGE
MIPS: VR4133: Fix probe for LL/SC.
MIPS: Fix logic errors in bitops.c
MIPS: Use CONFIG_CPU_MIPSR2 in csum_partial.S
MIPS: compat: Return same error ENOSYS as native for invalid operation.
If first drm_open fails, the error-handling path will
incorrectly restore inode's mapping to NULL. This can
cause the crash later on. Fix by separately storing
away mapping pointers that drm_open can touch and
restore each from its own respective variable if the
call fails.
Fixes: https://bugzilla.novell.com/show_bug.cgi?id=807850
(thanks to Michal Hocko for investigating investigating and
finding the root cause of the bug)
Reference:
http://lists.freedesktop.org/archives/dri-devel/2013-March/036564.html
v2: Use one variable to store file and inode mapping
since they are the same at the function entry.
Fix spelling mistakes in commit message.
v3: Add reference to the original bug report.
Reported-by: Marco Munderloh <munderl@tnt.uni-hannover.de>
Tested-by: Marco Munderloh <munderl@tnt.uni-hannover.de>
Signed-off-by: Ilija Hadzic <ihadzic@research.bell-labs.com>
Cc: Michal Hocko <mhocko@suse.cz>
Cc: stable@vger.kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
One locking regression fix, and a couple of other i915 ones.
* 'drm-intel-fixes' of git://people.freedesktop.org/~danvet/drm-intel:
drm: don't unlock in the addfb error paths
drm/i915: Fix build failure
drm/i915: Be sure to turn hsync/vsync back on at crt enable (v2)
drm/i915: duct-tape locking when eDP init fails
