Yen Lin [Wed, 6 Mar 2013 11:47:24 +0000 (11:47 +0000)]
clk: tegra: Fix periph_clk_to_bit macro
The parameter name should be "gate", not "periph". This worked, however,
because it happens that everywhere periph_clk_to_bit is called, "gate" was
in the local scope.
Signed-off-by: Yen Lin <yelin@nvidia.com>
Signed-off-by: Andrew Chew <achew@nvidia.com>
Reviewed-by: Thierry Reding <thierry.reding@avionic-design.de>
Reviewed-by: Prashant Gaikwad <pgaikwad@nvidia.com>
Acked-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Acked-by: Mike Turquette <mturquette@linaro.org>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Stephen Warren [Thu, 4 Apr 2013 22:08:13 +0000 (16:08 -0600)]
Merge remote-tracking branch 'linaro_mturquette_linux/clk-for-3.10' into for-3.10/clk
Stephen Warren [Thu, 4 Apr 2013 22:08:06 +0000 (16:08 -0600)]
Merge branch 'for-3.10/soc' into for-3.10/clk
Joseph Lo [Tue, 2 Apr 2013 01:20:50 +0000 (01:20 +0000)]
ARM: tegra: cpuidle: remove redundant parameters for powered-down mode
After the patch series for system suspending support, tegra_idle_lp2_last()
no longer uses its parameters cpu_on_time or cpu_off_time, so remove them.
Signed-off-by: Joseph Lo <josephl@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Joseph Lo [Wed, 3 Apr 2013 11:31:47 +0000 (19:31 +0800)]
ARM: tegra: pm: add platform suspend support
Adding suspend to RAM support for Tegra platform. There are three suspend
mode for Tegra. The difference were below.
* LP2: CPU voltage off
* LP1: CPU voltage off, DRAM in self-refresh
* LP0: CPU + Core voltage off, DRAM in self-refresh
After this patch, the LP2 suspend mode will be supported.
Signed-off-by: Joseph Lo <josephl@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Joseph Lo [Wed, 3 Apr 2013 11:31:46 +0000 (19:31 +0800)]
ARM: dt: tegra: add bindings of power management configurations for PMC
The PMC mostly controls the entry and exit of the system from different
sleep modes. Different platform or system may have different configurations.
The power management configurations of PMC is represented as some properties.
The system needs to define the properties when the system supports deep sleep
mode (i.e. suspend).
Cc: Grant Likely <grant.likely@secretlab.ca>
Cc: Rob Herring <rob.herring@calxeda.com>
Cc: devicetree-discuss@lists.ozlabs.org
Signed-off-by: Joseph Lo <josephl@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Joseph Lo [Wed, 3 Apr 2013 11:31:45 +0000 (19:31 +0800)]
ARM: tegra: irq: add wake up handling
Add the wake up handling for legacy irq controller, and using
IRQCHIP_MASK_ON_SUSPEND for wake irq handling.
Based on the work by:
Varun Wadekar <vwadekar@nvidia.com>
Signed-off-by: Joseph Lo <josephl@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Joseph Lo [Wed, 3 Apr 2013 11:31:44 +0000 (19:31 +0800)]
gpio: tegra: add gpio wakeup source handling
This patch add the gpio wakeup source handling for the Tegra platform. It
was be done by enabling the irq for the gpio in the gpio controller and
enabling the bank irq of the gpio in the Tegra legacy irq controller when
the system going to suspend.
Based on the work by:
Varun Wadekar <vwadekar@nvidia.com>
Cc: Grant Likely <grant.likely@secretlab.ca>
Cc: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Joseph Lo <josephl@nvidia.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Joseph Lo [Wed, 3 Apr 2013 11:31:28 +0000 (19:31 +0800)]
ARM: tegra: moving the CPU power timer function to PMC driver
The CPU power timer set up function was related to PMC register. Now moving
it to PMC driver. And it also help to clean up the PM related code later.
The timer was calculated based on the input clock of PMC. In this patch, we
also get the clock from DT.
Signed-off-by: Joseph Lo <josephl@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Joseph Lo [Wed, 3 Apr 2013 11:31:27 +0000 (19:31 +0800)]
ARM: tegra: add clock source of PMC to device trees
Adding the bindings of the clock source of PMC in DT.
Signed-off-by: Joseph Lo <josephl@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Mike Turquette [Thu, 28 Mar 2013 20:59:02 +0000 (13:59 -0700)]
clk: allow reentrant calls into the clk framework
Reentrancy into the clock framework is necessary for clock operations
that result in nested calls to the clk api. A common example is a clock
that is prepared via an i2c transaction, such as a clock inside of a
discrete audio chip or a power management IC. The i2c subsystem itself
will use the clk api resulting in a deadlock:
clk_prepare(audio_clk)
i2c_transfer(..)
clk_prepare(i2c_controller_clk)
The ability to reenter the clock framework prevents this deadlock.
Other use cases exist such as allowing .set_rate callbacks to call
clk_set_parent to achieve the best rate, or to save power in certain
configurations. Yet another example is performing pinctrl operations
from a clk_ops callback. Calls into the pinctrl subsystem may call
clk_{un}prepare on an unrelated clock. Allowing for nested calls to
reenter the clock framework enables both of these use cases.
Reentrancy is implemented by two global pointers that track the owner
currently holding a global lock. One pointer tracks the owner during
sleepable, mutex-protected operations and the other one tracks the owner
during non-interruptible, spinlock-protected operations.
When the clk framework is entered we try to hold the global lock. If it
is held we compare the current task against the current owner; a match
implies a nested call and we reenter. If the values do not match then
we block on the lock until it is released.
Signed-off-by: Mike Turquette <mturquette@linaro.org>
Cc: Rajagopal Venkat <rajagopal.venkat@linaro.org>
Cc: David Brown <davidb@codeaurora.org>
Tested-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Mike Turquette [Thu, 28 Mar 2013 20:59:01 +0000 (13:59 -0700)]
clk: abstract locking out into helper functions
Create locking helpers for the global mutex and global spinlock. The
definitions of these helpers will be expanded upon in the next patch
which introduces reentrancy into the locking scheme.
Signed-off-by: Mike Turquette <mturquette@linaro.org>
Cc: Rajagopal Venkat <rajagopal.venkat@linaro.org>
Cc: David Brown <davidb@codeaurora.org>
Tested-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Michal Simek [Wed, 27 Mar 2013 14:45:06 +0000 (15:45 +0100)]
clk: zynq: Add missing zynq clk header
Include zynq clk header where init function is declared.
It removes this sparse warning:
drivers/clk/clk-zynq.c:373:13: warning: symbol
'xilinx_zynq_clocks_init' was not declared. Should it be static?
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
Emilio López [Wed, 27 Mar 2013 02:39:17 +0000 (23:39 -0300)]
clk: sunxi: rename compatible strings
During the introduction of the Allwinner SoC platforms, sunxi was
initially meant as a generic name for all the variants of the Allwinner
SoC.
It was ok at the time of the support of only the A10 and A13 that
look pretty much the same; but it's beginning to be troublesome with
the future addition of the Allwinner A31 (sun6i) that is quite
different, and would introduce some weird logic, where sunxi would
actually mean in some case sun4i and sun5i but without sun6i...
Moreover, it makes the compatible strings naming scheme not consistent
with other architectures, where usually for this kind of compability, we
just use the oldest SoC name that has this IP, so let's do just this.
Signed-off-by: Emilio López <emilio@elopez.com.ar>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
Emilio López [Mon, 25 Feb 2013 14:44:28 +0000 (11:44 -0300)]
arm: sunxi: Add useful information about sunxi clocks
This patch contains useful bits of information about the sunxi clocks
that may help and/or be interesting for current and future developers.
Signed-off-by: Emilio López <emilio@elopez.com.ar>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
Emilio López [Mon, 25 Feb 2013 14:44:26 +0000 (11:44 -0300)]
clk: arm: sunxi: Add a new clock driver for sunxi SOCs
This commit implements the base CPU clocks for sunxi devices. It has
been tested using a slightly modified cpufreq driver from the
linux-sunxi 3.0 tree.
Additionally, document the new bindings introduced by this patch.
Idling:
/ # cat /sys/kernel/debug/clk/clk_summary
clock enable_cnt prepare_cnt rate
---------------------------------------------------------------------
osc32k 0 0 32768
osc24M_fixed 0 0
24000000
osc24M 0 0
24000000
apb1_mux 0 0
24000000
apb1 0 0
24000000
pll1 0 0
60000000
cpu 0 0
60000000
axi 0 0
60000000
ahb 0 0
60000000
apb0 0 0
30000000
dummy 0 0 0
After "yes >/dev/null &":
/ # cat /sys/kernel/debug/clk/clk_summary
clock enable_cnt prepare_cnt rate
---------------------------------------------------------------------
osc32k 0 0 32768
osc24M_fixed 0 0
24000000
osc24M 0 0
24000000
apb1_mux 0 0
24000000
apb1 0 0
24000000
pll1 0 0
1008000000
cpu 0 0
1008000000
axi 0 0
336000000
ahb 0 0
168000000
apb0 0 0
84000000
dummy 0 0 0
Signed-off-by: Emilio López <emilio@elopez.com.ar>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
Maxime Coquelin [Tue, 26 Mar 2013 14:27:15 +0000 (15:27 +0100)]
clk: ux500: Fix prcmu clocks registration
In clk_reg_prcmu(), clk->hw.init field is assigned with a
reference local to clk_reg_prcmu() function.
This patch replaces references to clk->hw.init with calls
to __clk_get_name when called after clock registration.
This patch applies on top of v3.9-rc4.
Signed-off-by: Maxime Coquelin <maxime.coquelin@st.com>
Acked-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
[mturquette@linaro.org: resolved trivial merge issues]
Fabio Estevam [Tue, 26 Mar 2013 13:42:10 +0000 (10:42 -0300)]
ARM: imx: adapt clk_busy_mux to new clk_mux struct
Commit
ce4f3313b05 (clk: add table lookup to mux) caused the following build
error on imx_v4_v5_defconfig/imx_v6_v7_defconfig:
arch/arm/mach-imx/clk-busy.c:172:11: error: 'struct clk_mux' has no member named 'width'
Fix it by passing the 'mask' field.
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Acked-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
[mturquette@linaro.org: shortened $SUBJECT line]
Prashant Gaikwad [Wed, 20 Mar 2013 12:00:34 +0000 (17:30 +0530)]
clk: Add composite clock type
Not all clocks are required to be decomposed into basic clock
types but at the same time want to use the functionality
provided by these basic clock types instead of duplicating.
For example, Tegra SoC has ~100 clocks which can be decomposed
into Mux -> Div -> Gate clock types making the clock count to
~300. Also, parent change operation can not be performed on gate
clock which forces to use mux clock in driver if want to change
the parent.
Instead aggregate the basic clock types functionality into one
clock and just use this clock for all operations. This clock
type re-uses the functionality of basic clock types and not
limited to basic clock types but any hardware-specific
implementation.
Signed-off-by: Prashant Gaikwad <pgaikwad@nvidia.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
Linus Torvalds [Sat, 23 Mar 2013 23:52:44 +0000 (16:52 -0700)]
Linux 3.9-rc4
Linus Torvalds [Sat, 23 Mar 2013 23:51:55 +0000 (16:51 -0700)]
Merge git://git./linux/kernel/git/nab/target-pending
Pull SCSI target fixes from Nicholas Bellinger:
"These are mostly minor fixes this time around. The iscsi-target CHAP
big-endian bugfix and bump FD_MAX_SECTORS=2048 default patch to allow
1MB sized I/Os for FILEIO backends on >= v3.5 code are both CC'ed to
stable.
Also, there is a persistent reservations regression that has recently
been reported for >= v3.8.x code, that is currently being tracked down
for v3.9."
* git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending:
target/pscsi: Reject cross page boundary case in pscsi_map_sg
target/file: Bump FD_MAX_SECTORS to 2048 to handle 1M sized I/Os
tcm_vhost: Flush vhost_work in vhost_scsi_flush()
tcm_vhost: Add missed lock in vhost_scsi_clear_endpoint()
target: fix possible memory leak in core_tpg_register()
target/iscsi: Fix mutual CHAP auth on big-endian arches
target_core_sbc: use noop for SYNCHRONIZE_CACHE
Linus Torvalds [Sat, 23 Mar 2013 22:49:49 +0000 (15:49 -0700)]
Merge tag 'md-3.9-fixes' of git://neil.brown.name/md
Pull md fixes from NeilBrown:
"A few bugfixes for md
- recent regressions in raid5
- recent regressions in dmraid
- a few instances of CONFIG_MULTICORE_RAID456 linger
Several tagged for -stable"
* tag 'md-3.9-fixes' of git://neil.brown.name/md:
md: remove CONFIG_MULTICORE_RAID456 entirely
md/raid5: ensure sync and DISCARD don't happen at the same time.
MD: Prevent sysfs operations on uninitialized kobjects
MD RAID5: Avoid accessing gendisk or queue structs when not available
md/raid5: schedule_construction should abort if nothing to do.
Linus Torvalds [Sat, 23 Mar 2013 19:33:36 +0000 (12:33 -0700)]
Merge tag 'upstream-linus' of git://git./linux/kernel/git/jgarzik/libata-dev
Pull libata updates from Jeff Garzik:
"Simple stuff. See one-line summaries."
* tag 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev:
pata_samsung_cf: use module_platform_driver_probe()
[libata] Avoid specialized TLA's in ZPODD's Kconfig
libata-acpi.c: fix copy and paste mistake in ata_acpi_register_power_resource
sata_fsl: Remove redundant NULL check before kfree
ahci: Add Device IDs for Intel Wellsburg PCH
ata_piix: Add MODULE_PARM_DESC to prefer_ms_hyperv
Linus Torvalds [Sat, 23 Mar 2013 19:32:14 +0000 (12:32 -0700)]
Merge branch 'i2c/for-current' of git://git./linux/kernel/git/wsa/linux
Pull i2c fixes from Wolfram Sang:
"One bugfix for the tegra driver. Two updates regarding email
addresses and MAINTAINERS which I like to have up-to-date so people
can be reached immediately. While we are here, there is on PCI_ID
addition."
* 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
MAINTAINERS: add maintainer entry for atmel i2c driver
i2c: Fix my e-mail address in drivers and documentation
i2c: iSMT: add Intel Avoton DeviceIDs
i2c: tegra: check the clk_prepare_enable() return value
Linus Torvalds [Sat, 23 Mar 2013 19:30:39 +0000 (12:30 -0700)]
Merge git://www.linux-watchdog.org/linux-watchdog
Pull watchdog fixes from Wim Van Sebroeck:
"Fix a boot issues and correct the AcpiMmioSel bitmask in the
sp5100_tco watchdog device driver"
* git://www.linux-watchdog.org/linux-watchdog:
watchdog: sp5100_tco: Set the AcpiMmioSel bitmask value to 1 instead of 2
watchdog: sp5100_tco: Remove code that may cause a boot failure
Torsten Duwe [Sat, 23 Mar 2013 14:39:34 +0000 (15:39 +0100)]
KMS: fix EDID detailed timing frame rate
When KMS has parsed an EDID "detailed timing", it leaves the frame rate
zeroed. Consecutive (debug-) output of that mode thus yields 0 for
vsync. This simple fix also speeds up future invocations of
drm_mode_vrefresh().
While it is debatable whether this qualifies as a -stable fix I'd apply
it for consistency's sake; drm_helper_probe_single_connector_modes()
does the same thing already for all probed modes.
Cc: stable@vger.kernel.org
Signed-off-by: Torsten Duwe <duwe@lst.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Torsten Duwe [Sat, 23 Mar 2013 14:38:22 +0000 (15:38 +0100)]
KMS: fix EDID detailed timing vsync parsing
EDID spreads some values across multiple bytes; bit-fiddling is needed
to retrieve these. The current code to parse "detailed timings" has a
cut&paste error that results in a vsync offset of at most 15 lines
instead of 63.
See
http://en.wikipedia.org/wiki/EDID
and in the "EDID Detailed Timing Descriptor" see bytes 10+11 show why
that needs to be a left shift.
Cc: stable@vger.kernel.org
Signed-off-by: Torsten Duwe <duwe@lst.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Fri, 22 Mar 2013 23:43:53 +0000 (16:43 -0700)]
Merge git://git.infradead.org/users/willy/linux-nvme
Pull NVMe driver update from Matthew Wilcox:
"These patches have mostly been baking for a few months; sorry I didn't
get them in during the merge window. They're all bug fixes, except
for the addition of the SMART log and the addition to MAINTAINERS."
* git://git.infradead.org/users/willy/linux-nvme:
NVMe: Add namespaces with no LBA range feature
MAINTAINERS: Add entry for the NVMe driver
NVMe: Initialize iod nents to 0
NVMe: Define SMART log
NVMe: Add result to nvme_get_features
NVMe: Set result from user admin command
NVMe: End queued bio requests when freeing queue
NVMe: Free cmdid on nvme_submit_bio error
Linus Torvalds [Fri, 22 Mar 2013 23:41:44 +0000 (16:41 -0700)]
Merge branch 'akpm' (fixes from Andrew)
Merge misc fixes from Andrew Morton.
* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
mqueue: sys_mq_open: do not call mnt_drop_write() if read-only
mm/hotplug: only free wait_table if it's allocated by vmalloc
dma-debug: update DMA debug API to better handle multiple mappings of a buffer
dma-debug: fix locking bug in check_unmap()
drivers/rtc/rtc-at91rm9200.c: use a variable for storing IMR
drivers/video/ep93xx-fb.c: include <linux/io.h> for devm_ioremap()
drivers/rtc/rtc-da9052.c: fix for rtc device registration
mm: zone_end_pfn is too small
poweroff: change orderly_poweroff() to use schedule_work()
mm/hugetlb: fix total hugetlbfs pages count when using memory overcommit accouting
printk: Provide a wake_up_klogd() off-case
irq_work.h: fix warning when CONFIG_IRQ_WORK=n
Vladimir Davydov [Fri, 22 Mar 2013 22:04:51 +0000 (15:04 -0700)]
mqueue: sys_mq_open: do not call mnt_drop_write() if read-only
mnt_drop_write() must be called only if mnt_want_write() succeeded,
otherwise the mnt_writers counter will diverge.
mnt_writers counters are used to check if remounting FS as read-only is
OK, so after an extra mnt_drop_write() call, it would be impossible to
remount mqueue FS as read-only. Besides, on umount a warning would be
printed like this one:
=====================================
[ BUG: bad unlock balance detected! ]
3.9.0-rc3 #5 Not tainted
-------------------------------------
a.out/12486 is trying to release lock (sb_writers) at:
mnt_drop_write+0x1f/0x30
but there are no more locks to release!
Signed-off-by: Vladimir Davydov <vdavydov@parallels.com>
Cc: Doug Ledford <dledford@redhat.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Jianguo Wu [Fri, 22 Mar 2013 22:04:50 +0000 (15:04 -0700)]
mm/hotplug: only free wait_table if it's allocated by vmalloc
zone->wait_table may be allocated from bootmem, it can not be freed.
Signed-off-by: Jianguo Wu <wujianguo@huawei.com>
Reviewed-by: Tang Chen <tangchen@cn.fujitsu.com>
Cc: Tang Chen <tangchen@cn.fujitsu.com>
Cc: Jiang Liu <jiang.liu@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Alexander Duyck [Fri, 22 Mar 2013 22:04:49 +0000 (15:04 -0700)]
dma-debug: update DMA debug API to better handle multiple mappings of a buffer
There were reports of the igb driver unmapping buffers without calling
dma_mapping_error. On closer inspection issues were found in the DMA
debug API and how it handled multiple mappings of the same buffer.
The issue I found is the fact that the debug_dma_mapping_error would
only set the map_err_type to MAP_ERR_CHECKED in the case that the was
only one match for device and device address. However in the case of
non-IOMMU, multiple addresses existed and as a result it was not setting
this field once a second mapping was instantiated. I have resolved this
by changing the search so that it instead will now set MAP_ERR_CHECKED
on the first buffer that matches the device and DMA address that is
currently in the state MAP_ERR_NOT_CHECKED.
A secondary side effect of this patch is that in the case of multiple
buffers using the same address only the last mapping will have a valid
map_err_type. The previous mappings will all end up with map_err_type
set to MAP_ERR_CHECKED because of the dma_mapping_error call in
debug_dma_map_page. However this behavior may be preferable as it means
you will likely only see one real error per multi-mapped buffer, versus
the current behavior of multiple false errors mer multi-mapped buffer.
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Cc: Joerg Roedel <joro@8bytes.org>
Reviewed-by: Shuah Khan <shuah.khan@hp.com>
Tested-by: Shuah Khan <shuah.khan@hp.com>
Cc: Jakub Kicinski <kubakici@wp.pl>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Alexander Duyck [Fri, 22 Mar 2013 22:04:48 +0000 (15:04 -0700)]
dma-debug: fix locking bug in check_unmap()
In check_unmap() it is possible to get into a dead-locked state if
dma_mapping_error is called. The problem is that the bucket is locked in
check_unmap, and locked again by debug_dma_mapping_error which is called
by dma_mapping_error. To resolve that we must release the lock on the
bucket before making the call to dma_mapping_error.
[akpm@linux-foundation.org: restore 80-col trickery to be consistent with the rest of the file]
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Cc: Joerg Roedel <joro@8bytes.org>
Reviewed-by: Shuah Khan <shuah.khan@hp.com>
Tested-by: Shuah Khan <shuah.khan@hp.com>
Cc: Jakub Kicinski <kubakici@wp.pl>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Nicolas Ferre [Fri, 22 Mar 2013 22:04:47 +0000 (15:04 -0700)]
drivers/rtc/rtc-at91rm9200.c: use a variable for storing IMR
On some revisions of AT91 SoCs, the RTC IMR register is not working.
Instead of elaborating a workaround for that specific SoC or IP version,
we simply use a software variable to store the Interrupt Mask Register
and modify it for each enabling/disabling of an interrupt. The overhead
of this is negligible anyway.
The interrupt mask register (IMR) for the RTC is broken on the AT91SAM9x5
sub-family of SoCs (good overview of the members here:
http://www.eewiki.net/display/linuxonarm/AT91SAM9x5 ). The "user visible
effect" is the RTC doesn't work.
That sub-family is less than two years old and only has devicetree (DT)
support and came online circa lk 3.7 . The dust is yet to settle on the
DT stuff at least for AT91 SoCs (translation: lots of stuff is still
broken, so much that it is hard to know where to start).
The fix in the patch is pretty simple: just shadow the silicon IMR
register with a variable in the driver. Some older SoCs (pre-DT) use the
the rtc-at91rm9200 driver (e.g. obviously the AT91RM9200) and they should
not be impacted by the change. There shouldn't be a large volume of
interrupts associated with a RTC.
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Reported-by: Douglas Gilbert <dgilbert@interlog.com>
Cc: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Cc: Ludovic Desroches <ludovic.desroches@atmel.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
H Hartley Sweeten [Fri, 22 Mar 2013 22:04:45 +0000 (15:04 -0700)]
drivers/video/ep93xx-fb.c: include <linux/io.h> for devm_ioremap()
Commit
be8678149701 ("drivers/video/ep93xx-fb.c: use devm_ functions")
introduced a build error:
drivers/video/ep93xx-fb.c: In function 'ep93xxfb_probe':
drivers/video/ep93xx-fb.c:532: error: implicit declaration of function 'devm_ioremap'
drivers/video/ep93xx-fb.c:533: warning: assignment makes pointer from integer without a cast
Include <linux/io.h> to pickup the declaration of 'devm_ioremap'.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Acked-by: Ryan Mallon <rmallon@gmail.com>
Cc: Damien Cassou <damien.cassou@lifl.fr>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Ashish Jangam [Fri, 22 Mar 2013 22:04:44 +0000 (15:04 -0700)]
drivers/rtc/rtc-da9052.c: fix for rtc device registration
Add support for the virtual irq since now MFD only handles virtual irq
Without this patch rtc device will fail in registration.
(akpm: Ashish has a different version whcih will be needed for 3.8.x and
earlier kernels)
Signed-off-by: Ashish <ashish.jangam@kpitcummins.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Russ Anderson [Fri, 22 Mar 2013 22:04:43 +0000 (15:04 -0700)]
mm: zone_end_pfn is too small
Booting with 32 TBytes memory hits BUG at mm/page_alloc.c:552! (output
below).
The key hint is "page
4294967296 outside zone".
4294967296 = 0x100000000 (bit 32 is set).
The problem is in include/linux/mmzone.h:
530 static inline unsigned zone_end_pfn(const struct zone *zone)
531 {
532 return zone->zone_start_pfn + zone->spanned_pages;
533 }
zone_end_pfn is "unsigned" (32 bits). Changing it to "unsigned long"
(64 bits) fixes the problem.
zone_end_pfn() was added recently in commit
108bcc96ef70 ("mm: add & use
zone_end_pfn() and zone_spans_pfn()")
Output from the failure.
No AGP bridge found
page
4294967296 outside zone [
4294967296 -
4327469056 ]
------------[ cut here ]------------
kernel BUG at mm/page_alloc.c:552!
invalid opcode: 0000 [#1] SMP
Modules linked in:
CPU 0
Pid: 0, comm: swapper Not tainted 3.9.0-rc2.dtp+ #10
RIP: free_one_page+0x382/0x430
Process swapper (pid: 0, threadinfo
ffffffff81942000, task
ffffffff81955420)
Call Trace:
__free_pages_ok+0x96/0xb0
__free_pages+0x25/0x50
__free_pages_bootmem+0x8a/0x8c
__free_memory_core+0xea/0x131
free_low_memory_core_early+0x4a/0x98
free_all_bootmem+0x45/0x47
mem_init+0x7b/0x14c
start_kernel+0x216/0x433
x86_64_start_reservations+0x2a/0x2c
x86_64_start_kernel+0x144/0x153
Code: 89 f1 ba 01 00 00 00 31 f6 d3 e2 4c 89 ef e8 66 a4 01 00 e9 2c fe ff ff 0f 0b eb fe 0f 0b 66 66 2e 0f 1f 84 00 00 00 00 00 eb f3 <0f> 0b eb fe 0f 0b 0f 1f 84 00 00 00 00 00 eb f6 0f 0b eb fe 49
Signed-off-by: Russ Anderson <rja@sgi.com>
Reported-by: George Beshers <gbeshers@sgi.com>
Acked-by: Hedi Berriche <hedi@sgi.com>
Cc: Cody P Schafer <cody@linux.vnet.ibm.com>
Cc: Michal Hocko <mhocko@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Oleg Nesterov [Fri, 22 Mar 2013 22:04:41 +0000 (15:04 -0700)]
poweroff: change orderly_poweroff() to use schedule_work()
David said:
Commit
6c0c0d4d1080 ("poweroff: fix bug in orderly_poweroff()")
apparently fixes one bug in orderly_poweroff(), but introduces
another. The comments on orderly_poweroff() claim it can be called
from any context - and indeed we call it from interrupt context in
arch/powerpc/platforms/pseries/ras.c for example. But since that
commit this is no longer safe, since call_usermodehelper_fns() is not
safe in interrupt context without the UMH_NO_WAIT option.
orderly_poweroff() can be used from any context but UMH_WAIT_EXEC is
sleepable. Move the "force" logic into __orderly_poweroff() and change
orderly_poweroff() to use the global poweroff_work which simply calls
__orderly_poweroff().
While at it, remove the unneeded "int argc" and change argv_split() to
use GFP_KERNEL.
We use the global "bool poweroff_force" to pass the argument, this can
obviously affect the previous request if it is pending/running. So we
only allow the "false => true" transition assuming that the pending
"true" should succeed anyway. If schedule_work() fails after that we
know that work->func() was not called yet, it must see the new value.
This means that orderly_poweroff() becomes async even if we do not run
the command and always succeeds, schedule_work() can only fail if the
work is already pending. We can export __orderly_poweroff() and change
the non-atomic callers which want the old semantics.
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Reported-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Reported-by: David Gibson <david@gibson.dropbear.id.au>
Cc: Lucas De Marchi <lucas.demarchi@profusion.mobi>
Cc: Feng Hong <hongfeng@marvell.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Serge Hallyn <serge.hallyn@canonical.com>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Wanpeng Li [Fri, 22 Mar 2013 22:04:40 +0000 (15:04 -0700)]
mm/hugetlb: fix total hugetlbfs pages count when using memory overcommit accouting
hugetlb_total_pages is used for overcommit calculations but the current
implementation considers only the default hugetlb page size (which is
either the first defined hugepage size or the one specified by
default_hugepagesz kernel boot parameter).
If the system is configured for more than one hugepage size, which is
possible since commit
a137e1cc6d6e ("hugetlbfs: per mount huge page
sizes") then the overcommit estimation done by __vm_enough_memory()
(resp. shown by meminfo_proc_show) is not precise - there is an
impression of more available/allowed memory. This can lead to an
unexpected ENOMEM/EFAULT resp. SIGSEGV when memory is accounted.
Testcase:
boot: hugepagesz=1G hugepages=1
the default overcommit ratio is 50
before patch:
egrep 'CommitLimit' /proc/meminfo
CommitLimit:
55434168 kB
after patch:
egrep 'CommitLimit' /proc/meminfo
CommitLimit:
54909880 kB
[akpm@linux-foundation.org: coding-style tweak]
Signed-off-by: Wanpeng Li <liwanp@linux.vnet.ibm.com>
Acked-by: Michal Hocko <mhocko@suse.cz>
Cc: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>
Cc: Hillf Danton <dhillf@gmail.com>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: <stable@vger.kernel.org> [3.0+]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Frederic Weisbecker [Fri, 22 Mar 2013 22:04:39 +0000 (15:04 -0700)]
printk: Provide a wake_up_klogd() off-case
wake_up_klogd() is useless when CONFIG_PRINTK=n because neither printk()
nor printk_sched() are in use and there are actually no waiter on
log_wait waitqueue. It should be a stub in this case for users like
bust_spinlocks().
Otherwise this results in this warning when CONFIG_PRINTK=n and
CONFIG_IRQ_WORK=n:
kernel/built-in.o In function `wake_up_klogd':
(.text.wake_up_klogd+0xb4): undefined reference to `irq_work_queue'
To fix this, provide an off-case for wake_up_klogd() when
CONFIG_PRINTK=n.
There is much more from console_unlock() and other console related code
in printk.c that should be moved under CONFIG_PRINTK. But for now,
focus on a minimal fix as we passed the merged window already.
[akpm@linux-foundation.org: include printk.h in bust_spinlocks.c]
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Reported-by: James Hogan <james.hogan@imgtec.com>
Cc: James Hogan <james.hogan@imgtec.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
James Hogan [Fri, 22 Mar 2013 22:04:37 +0000 (15:04 -0700)]
irq_work.h: fix warning when CONFIG_IRQ_WORK=n
A randconfig caught repeated compiler warnings when CONFIG_IRQ_WORK=n
due to the definition of a non-inline static function in
<linux/irq_work.h>:
include/linux/irq_work.h +40 : warning: 'irq_work_needs_cpu' defined but not used
Make it inline to supress the warning. This is caused commit
00b42959106a ("irq_work: Don't stop the tick with pending works") merged
in v3.9-rc1.
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Takahisa Tanaka [Sun, 3 Mar 2013 05:48:00 +0000 (14:48 +0900)]
watchdog: sp5100_tco: Set the AcpiMmioSel bitmask value to 1 instead of 2
The AcpiMmioSel bit is bit 1 in the AcpiMmioEn register, but the current
sp5100_tco driver is using bit 2.
See 2.3.3 Power Management (PM) Registers page 150 of the
AMD SB800-Series Southbridges Register Reference Guide [1].
AcpiMmioEn - RW – 8/16/32 bits - [PM_Reg: 24h]
Field Name Bits Default Description
AcpiMMioDecodeEn 0 0b Set to 1 to enable AcpiMMio space.
AcpiMMIoSel 1 0b Set AcpiMMio registers to be memory-mapped or IO-mapped space.
0: Memory-mapped space
1: I/O-mapped space
The sp5100_tco driver expects zero as a value of AcpiMmioSel (bit 1).
Fortunately, no problems were caused by this typo, because the default
value of the undocumented misused bit 2 seems to be zero.
However, the sp5100_tco driver should use the correct bitmask value.
[1] http://support.amd.com/us/Embedded_TechDocs/45482.pdf
Signed-off-by: Takahisa Tanaka <mc74hc00@gmail.com>
Signed-off-by: Paul Menzel <paulepanter@users.sourceforge.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Cc: stable <stable@vger.kernel.org>
Takahisa Tanaka [Sun, 3 Mar 2013 05:52:07 +0000 (14:52 +0900)]
watchdog: sp5100_tco: Remove code that may cause a boot failure
A problem was found on PC's with the SB700 chipset: The PC fails to
load BIOS after running the 3.8.x kernel until the power is completely
cut off. It occurs in all 3.8.x versions and the mainline version as of
2/4. The issue does not occur with the 3.7.x builds.
There are two methods for accessing the watchdog registers.
1. Re-programming a resource address obtained by allocate_resource()
to chipset.
2. Use the direct memory-mapped IO access.
The method 1 can be used by all the chipsets (SP5100, SB7x0, SB8x0 or
later). However, experience shows that only PC with the SB8x0 (or
later) chipsets can use the method 2.
This patch removes the method 1, because the critical problem was found.
That's why the watchdog timer was able to be used on SP5100 and SB7x0
chipsets until now.
Link: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1116835
Link: https://lkml.org/lkml/2013/2/14/271
Signed-off-by: Takahisa Tanaka <mc74hc00@gmail.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Cc: stable <stable@vger.kernel.org>
Peter De Schrijver [Fri, 22 Mar 2013 12:07:53 +0000 (14:07 +0200)]
clk: add table lookup to mux
Add a table lookup feature to the mux clock. Also allow arbitrary masks
instead of the width. This will be used by some clocks on Tegra114. Also
adapt the tegra periph clk because it uses struct clk_mux directly.
Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Tested-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
Sachin Kamat [Wed, 13 Mar 2013 09:47:49 +0000 (15:17 +0530)]
clk: Fix incorrect return type in clk.c
Return type of function clk_propagate_rate_change is a pointer.
But 0 was being returned. Change it to NULL.
Silences the following warning:
drivers/clk/clk.c:977:24: warning: Using plain integer as NULL pointer
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Reviewed-by: Pankaj Jangra <jangra.pankaj9@gmail.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
Wei Yongjun [Mon, 11 Mar 2013 15:55:18 +0000 (23:55 +0800)]
clk: prima2: fix return value check in sirfsoc_of_clk_init()
In case of error, the function clk_get() returns ERR_PTR()
not NULL. The NULL test in the return value check should
be replaced with IS_ERR().
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Acked-by: Barry Song <21cnbao@gmail.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
[mturquette@linaro.org: added missing parenthesis to fix compile break]
Linus Torvalds [Fri, 22 Mar 2013 19:57:30 +0000 (12:57 -0700)]
Merge git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull KVM fix from Marcelo Tosatti:
"Fix compilation on PPC with !CONFIG_KVM"
* git://git.kernel.org/pub/scm/virt/kvm/kvm:
Revert "KVM: allow host header to be included even for !CONFIG_KVM"
Linus Torvalds [Fri, 22 Mar 2013 19:45:55 +0000 (12:45 -0700)]
Merge tag 'usb-3.9-rc3' of git://git./linux/kernel/git/gregkh/usb
Pull USB fixes from Greg Kroah-Hartman:
"Here are a number of USB fixes that resolve issues that have been
reported against 3.9-rc3."
* tag 'usb-3.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (37 commits)
USB: ti_usb_3410_5052: fix use-after-free in TIOCMIWAIT
USB: ssu100: fix use-after-free in TIOCMIWAIT
USB: spcp8x5: fix use-after-free in TIOCMIWAIT
USB: quatech2: fix use-after-free in TIOCMIWAIT
USB: pl2303: fix use-after-free in TIOCMIWAIT
USB: oti6858: fix use-after-free in TIOCMIWAIT
USB: mos7840: fix use-after-free in TIOCMIWAIT
USB: mos7840: fix broken TIOCMIWAIT
USB: mct_u232: fix use-after-free in TIOCMIWAIT
USB: io_ti: fix use-after-free in TIOCMIWAIT
USB: io_edgeport: fix use-after-free in TIOCMIWAIT
USB: ftdi_sio: fix use-after-free in TIOCMIWAIT
USB: f81232: fix use-after-free in TIOCMIWAIT
USB: cypress_m8: fix use-after-free in TIOCMIWAIT
USB: ch341: fix use-after-free in TIOCMIWAIT
USB: ark3116: fix use-after-free in TIOCMIWAIT
USB: serial: add modem-status-change wait queue
USB: serial: fix interface refcounting
USB: io_ti: fix get_icount for two port adapters
USB: garmin_gps: fix memory leak on disconnect
...
Linus Torvalds [Fri, 22 Mar 2013 19:45:08 +0000 (12:45 -0700)]
Merge tag 'sound-3.9' of git://git./linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"Mostly HD-audio and USB-audio regression fixes:
- Oops fix at unloading of snd-hda-codec-conexant module
- A few trivial regression fixes for Cirrus and Conexant HD-audio
codecs
- Relax the USB-audio descriptor parse errors as non-fatal
- Fix locking of HD-audio CA0132 DSP loader
- Fix the generic HD-audio parser for VIA codecs"
* tag 'sound-3.9' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: hda - Fix DAC assignment for independent HP
ALSA: hda - Fix abuse of snd_hda_lock_devices() for DSP loader
ALSA: hda - Fix typo in checking IEC958 emphasis bit
ALSA: snd-usb: mixer: ignore -EINVAL in snd_usb_mixer_controls()
ALSA: snd-usb: mixer: propagate errors up the call chain
ALSA: usb: Parse UAC2 extension unit like for UAC1
ALSA: hda - Fix yet missing GPIO/EAPD setup in cirrus driver
ALSA: hda/cirrus - Fix the digital beep registration
ALSA: hda - Fix missing beep detach in patch_conexant.c
ALSA: documentation: Fix typo in Documentation/sound
Linus Torvalds [Fri, 22 Mar 2013 19:44:22 +0000 (12:44 -0700)]
Merge tag 'for_linus' of git://git./linux/kernel/git/bp/bp
Pull EDAC fixes from Borislav Petkov:
"A fix from Mauro to correct csrow size accounting in sysfs and a
sparse fix from Stephen Hemminger."
* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp:
EDAC: Merge mci.mem_is_per_rank with mci.csbased
amd64_edac: Correct DIMM sizes
EDAC: Make sysfs functions static
Keith Busch [Thu, 31 Jan 2013 21:40:38 +0000 (14:40 -0700)]
NVMe: Add namespaces with no LBA range feature
The LBA Range Type feature is optional in the NVMe specification,
so we should continue with adding namespaces for controllers that do
not implement this feature.
Signed-off-by: Keith Busch <keith.busch@intel.com>
Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
Linus Torvalds [Fri, 22 Mar 2013 18:44:04 +0000 (11:44 -0700)]
vfs,proc: guarantee unique inodes in /proc
Dave Jones found another /proc issue with his Trinity tool: thanks to
the namespace model, we can have multiple /proc dentries that point to
the same inode, aliasing directories in /proc/<pid>/net/ for example.
This ends up being a total disaster, because it acts like hardlinked
directories, and causes locking problems. We rely on the topological
sort of the inodes pointed to by dentries, and if we have aliased
directories, that odering becomes unreliable.
In short: don't do this. Multiple dentries with the same (directory)
inode is just a bad idea, and the namespace code should never have
exposed things this way. But we're kind of stuck with it.
This solves things by just always allocating a new inode during /proc
dentry lookup, instead of using "iget_locked()" to look up existing
inodes by superblock and number. That actually simplies the code a bit,
at the cost of potentially doing more inode [de]allocations.
That said, the inode lookup wasn't free either (and did a lot of locking
of inodes), so it is probably not that noticeable. We could easily keep
the old lookup model for non-directory entries, but rather than try to
be excessively clever this just implements the minimal and simplest
workaround for the problem.
Reported-and-tested-by: Dave Jones <davej@redhat.com>
Analyzed-by: Al Viro <viro@zeniv.linux.org.uk>
Cc: stable@vger.kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Marcelo Tosatti [Fri, 22 Mar 2013 11:08:06 +0000 (08:08 -0300)]
Revert "KVM: allow host header to be included even for !CONFIG_KVM"
This reverts commit
f445f11eb2cc265dd47da5b2e864df46cd6e5a82 as
it breaks PPC with CONFIG_KVM=n.
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Ludovic Desroches [Fri, 15 Mar 2013 05:32:57 +0000 (05:32 +0000)]
MAINTAINERS: add maintainer entry for atmel i2c driver
Create an entry for atmel i2c driver: i2c-at91.c
Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Guenter Roeck [Tue, 26 Feb 2013 06:03:52 +0000 (06:03 +0000)]
i2c: Fix my e-mail address in drivers and documentation
My old e-mail address is no longer working.
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Seth Heasley [Thu, 21 Feb 2013 12:30:43 +0000 (12:30 +0000)]
i2c: iSMT: add Intel Avoton DeviceIDs
This patch adds the iSMT SMBus Controller DeviceIDs for the Intel Avoton SOC.
Signed-off-by: Seth Heasley <seth.heasley@intel.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Laxman Dewangan [Fri, 15 Mar 2013 05:34:08 +0000 (05:34 +0000)]
i2c: tegra: check the clk_prepare_enable() return value
NVIDIA's Tegra SoC allows read/write of controller register only
if controller clock is enabled. System hangs if read/write happens
to registers without enabling clock.
clk_prepare_enable() can be fail due to unknown reason and hence
adding check for return value of this function. If this function
success then only access register otherwise return to caller with
error.
Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Cc: stable@kernel.org
Linus Torvalds [Fri, 22 Mar 2013 00:59:22 +0000 (17:59 -0700)]
Merge branch 'for-next' of git://git.samba.org/sfrench/cifs-2.6
Pull CIFS fixes from Steve French:
"Three small CIFS Fixes (the most important of the three fixes a recent
problem authenticating to Windows 8 using cifs rather than SMB2)"
* 'for-next' of git://git.samba.org/sfrench/cifs-2.6:
cifs: ignore everything in SPNEGO blob after mechTypes
cifs: delay super block destruction until all cifsFileInfo objects are gone
cifs: map NT_STATUS_SHARING_VIOLATION to EBUSY instead of ETXTBSY
Linus Torvalds [Fri, 22 Mar 2013 00:56:10 +0000 (17:56 -0700)]
Merge tag 'ext4_for_linue' of git://git./linux/kernel/git/tytso/ext4
Pull ext4 fixes from Ted Ts'o:
"Fix a number of regression and other bugs in ext4, most of which were
relatively obscure cornercases or races that were found using
regression tests."
* tag 'ext4_for_linue' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: (21 commits)
ext4: fix data=journal fast mount/umount hang
ext4: fix ext4_evict_inode() racing against workqueue processing code
ext4: fix memory leakage in mext_check_coverage
ext4: use s_extent_max_zeroout_kb value as number of kb
ext4: use atomic64_t for the per-flexbg free_clusters count
jbd2: fix use after free in jbd2_journal_dirty_metadata()
ext4: reserve metadata block for every delayed write
ext4: update reserved space after the 'correction'
ext4: do not use yield()
ext4: remove unused variable in ext4_free_blocks()
ext4: fix WARN_ON from ext4_releasepage()
ext4: fix the wrong number of the allocated blocks in ext4_split_extent()
ext4: update extent status tree after an extent is zeroed out
ext4: fix wrong m_len value after unwritten extent conversion
ext4: add self-testing infrastructure to do a sanity check
ext4: avoid a potential overflow in ext4_es_can_be_merged()
ext4: invalidate extent status tree during extent migration
ext4: remove unnecessary wait for extent conversion in ext4_fallocate()
ext4: add warning to ext4_convert_unwritten_extents_endio
ext4: disable merging of uninitialized extents
...
Johan Hovold [Tue, 19 Mar 2013 08:21:26 +0000 (09:21 +0100)]
USB: ti_usb_3410_5052: fix use-after-free in TIOCMIWAIT
Use the port wait queue and make sure to check the serial disconnected
flag before accessing private port data after waking up.
This is is needed as the private port data (including the wait queue
itself) can be gone when waking up after a disconnect.
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Johan Hovold [Tue, 19 Mar 2013 08:21:25 +0000 (09:21 +0100)]
USB: ssu100: fix use-after-free in TIOCMIWAIT
Use the port wait queue and make sure to check the serial disconnected
flag before accessing private port data after waking up.
This is is needed as the private port data (including the wait queue
itself) can be gone when waking up after a disconnect.
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Johan Hovold [Tue, 19 Mar 2013 08:21:24 +0000 (09:21 +0100)]
USB: spcp8x5: fix use-after-free in TIOCMIWAIT
Use the port wait queue and make sure to check the serial disconnected
flag before accessing private port data after waking up.
This is is needed as the private port data (including the wait queue
itself) can be gone when waking up after a disconnect.
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Johan Hovold [Tue, 19 Mar 2013 08:21:23 +0000 (09:21 +0100)]
USB: quatech2: fix use-after-free in TIOCMIWAIT
Use the port wait queue and make sure to check the serial disconnected
flag before accessing private port data after waking up.
This is is needed as the private port data (including the wait queue
itself) can be gone when waking up after a disconnect.
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Johan Hovold [Tue, 19 Mar 2013 08:21:22 +0000 (09:21 +0100)]
USB: pl2303: fix use-after-free in TIOCMIWAIT
Use the port wait queue and make sure to check the serial disconnected
flag before accessing private port data after waking up.
This is is needed as the private port data (including the wait queue
itself) can be gone when waking up after a disconnect.
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Johan Hovold [Tue, 19 Mar 2013 08:21:21 +0000 (09:21 +0100)]
USB: oti6858: fix use-after-free in TIOCMIWAIT
Use the port wait queue and make sure to check the serial disconnected
flag before accessing private port data after waking up.
This is is needed as the private port data (including the wait queue
itself) can be gone when waking up after a disconnect.
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Johan Hovold [Tue, 19 Mar 2013 08:21:20 +0000 (09:21 +0100)]
USB: mos7840: fix use-after-free in TIOCMIWAIT
Use the port wait queue and make sure to check the serial disconnected
flag before accessing private port data after waking up.
This is is needed as the private port data (including the wait queue
itself) can be gone when waking up after a disconnect.
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Johan Hovold [Tue, 19 Mar 2013 08:21:19 +0000 (09:21 +0100)]
USB: mos7840: fix broken TIOCMIWAIT
Make sure waiting processes are woken on modem-status changes.
Currently processes are only woken on termios changes regardless of
whether the modem status has changed.
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Johan Hovold [Tue, 19 Mar 2013 08:21:18 +0000 (09:21 +0100)]
USB: mct_u232: fix use-after-free in TIOCMIWAIT
Use the port wait queue and make sure to check the serial disconnected
flag before accessing private port data after waking up.
This is is needed as the private port data (including the wait queue
itself) can be gone when waking up after a disconnect.
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Johan Hovold [Tue, 19 Mar 2013 08:21:17 +0000 (09:21 +0100)]
USB: io_ti: fix use-after-free in TIOCMIWAIT
Use the port wait queue and make sure to check the serial disconnected
flag before accessing private port data after waking up.
This is is needed as the private port data (including the wait queue
itself) can be gone when waking up after a disconnect.
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Johan Hovold [Tue, 19 Mar 2013 08:21:16 +0000 (09:21 +0100)]
USB: io_edgeport: fix use-after-free in TIOCMIWAIT
Use the port wait queue and make sure to check the serial disconnected
flag before accessing private port data after waking up.
This is is needed as the private port data (including the wait queue
itself) can be gone when waking up after a disconnect.
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Johan Hovold [Tue, 19 Mar 2013 08:21:15 +0000 (09:21 +0100)]
USB: ftdi_sio: fix use-after-free in TIOCMIWAIT
Use the port wait queue and make sure to check the serial disconnected
flag before accessing private port data after waking up.
This is is needed as the private port data (including the wait queue
itself) can be gone when waking up after a disconnect.
When switching to tty ports, some lifetime assumptions were changed.
Specifically, close can now be called before the final tty reference is
dropped as part of hangup at device disconnect. Even with the ftdi
private-data refcounting this means that the port private data can be
freed while a process is sleeping on modem-status changes and thus
cannot be relied on to detect disconnects when woken up.
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Johan Hovold [Tue, 19 Mar 2013 08:21:14 +0000 (09:21 +0100)]
USB: f81232: fix use-after-free in TIOCMIWAIT
Use the port wait queue and make sure to check the serial disconnected
flag before accessing private port data after waking up.
This is is needed as the private port data (including the wait queue
itself) can be gone when waking up after a disconnect.
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Johan Hovold [Tue, 19 Mar 2013 08:21:13 +0000 (09:21 +0100)]
USB: cypress_m8: fix use-after-free in TIOCMIWAIT
Use the port wait queue and make sure to check the serial disconnected
flag before accessing private port data after waking up.
This is is needed as the private port data (including the wait queue
itself) can be gone when waking up after a disconnect.
Also remove bogus test for private data pointer being NULL as it is
never assigned in the loop.
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Johan Hovold [Tue, 19 Mar 2013 08:21:12 +0000 (09:21 +0100)]
USB: ch341: fix use-after-free in TIOCMIWAIT
Use the port wait queue and make sure to check the serial disconnected
flag before accessing private port data after waking up.
This is is needed as the private port data (including the wait queue
itself) can be gone when waking up after a disconnect.
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Johan Hovold [Tue, 19 Mar 2013 08:21:11 +0000 (09:21 +0100)]
USB: ark3116: fix use-after-free in TIOCMIWAIT
Use the port wait queue and make sure to check the serial disconnected
flag before accessing private port data after waking up.
This is is needed as the private port data (including the wait queue
itself) can be gone when waking up after a disconnect.
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Johan Hovold [Tue, 19 Mar 2013 08:21:10 +0000 (09:21 +0100)]
USB: serial: add modem-status-change wait queue
Add modem-status-change wait queue to struct usb_serial_port that
subdrivers can use to implement TIOCMIWAIT.
Currently subdrivers use a private wait queue which may have been
released when waking up after device disconnected.
Note that we're adding a new wait queue rather than reusing the tty-port
one as we do not want to get woken up at hangup (yet).
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Johan Hovold [Tue, 19 Mar 2013 08:21:09 +0000 (09:21 +0100)]
USB: serial: fix interface refcounting
Make sure the interface is not released before our serial device.
Note that drivers are still not allowed to access the interface in
any way that may interfere with another driver that may have gotten
bound to the same interface after disconnect returns.
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Johan Hovold [Tue, 19 Mar 2013 08:21:08 +0000 (09:21 +0100)]
USB: io_ti: fix get_icount for two port adapters
Add missing get_icount field to two-port driver.
The two-port driver was not updated when switching to the new icount
interface in commit
0bca1b913aff ("tty: Convert the USB drivers to the
new icount interface").
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Johan Hovold [Tue, 19 Mar 2013 08:21:07 +0000 (09:21 +0100)]
USB: garmin_gps: fix memory leak on disconnect
Remove bogus disconnect test introduced by
95bef012e ("USB: more serial
drivers writing after disconnect") which prevented queued data from
being freed on disconnect.
The possible IO it was supposed to prevent is long gone.
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Johan Hovold [Tue, 19 Mar 2013 08:21:06 +0000 (09:21 +0100)]
USB: cdc-acm: fix device unregistration
Unregister tty device in disconnect as is required by the USB stack.
By deferring unregistration to when the last tty reference is dropped,
the parent interface device can get unregistered before the child
resulting in broken hotplug events being generated when the tty is
finally closed:
KERNEL[2290.798128] remove /devices/pci0000:00/0000:00:1d.7/usb2/2-1/2-1:3.1 (usb)
KERNEL[2290.804589] remove /devices/pci0000:00/0000:00:1d.7/usb2/2-1 (usb)
KERNEL[2294.554799] remove /2-1:3.1/tty/ttyACM0 (tty)
The driver must deal with tty callbacks after disconnect by checking the
disconnected flag. Specifically, further opens must be prevented and
this is already implemented.
Cc: stable <stable@vger.kernel.org>
Cc: Oliver Neukum <oneukum@suse.de>
Acked-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Alexey Khoroshilov [Fri, 15 Mar 2013 21:30:32 +0000 (01:30 +0400)]
usb: cdc-acm: fix error handling in acm_probe()
acm_probe() ignores errors in tty_port_register_device()
and leaves intfdata pointing to freed memory on alloc_fail7
error path. The patch fixes the both issues.
Found by Linux Driver Verification project (linuxtesting.org).
Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Acked-by: Oliver Neukum <oliver@neukum.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Vipul Kumar Samar [Thu, 7 Mar 2013 07:05:24 +0000 (12:35 +0530)]
clk:SPEAr1340: Correct parent clock configuration
This patch corrects wrongly configured parent clock for following
devices:
* Video enc/decoder
* Video ip
* Pin control
* ACP
* camx
Signed-off-by: Vipul Kumar Samar <vipulkumar.samar@st.com>
Reviewed-by: Shiraz Hashim <shiraz.hashim@st.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
Eduardo Valentin [Thu, 28 Feb 2013 13:59:07 +0000 (09:59 -0400)]
documentation: clk: fix couple of misspelling
Correcting misspelling inside the clk.txt.
Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
Jeff Layton [Mon, 11 Mar 2013 13:52:19 +0000 (09:52 -0400)]
cifs: ignore everything in SPNEGO blob after mechTypes
We've had several reports of people attempting to mount Windows 8 shares
and getting failures with a return code of -EINVAL. The default sec=
mode changed recently to sec=ntlmssp. With that, we expect and parse a
SPNEGO blob from the server in the NEGOTIATE reply.
The current decode_negTokenInit function first parses all of the
mechTypes and then tries to parse the rest of the negTokenInit reply.
The parser however currently expects a mechListMIC or nothing to follow the
mechTypes, but Windows 8 puts a mechToken field there instead to carry
some info for the new NegoEx stuff.
In practice, we don't do anything with the fields after the mechTypes
anyway so I don't see any real benefit in continuing to parse them.
This patch just has the kernel ignore the fields after the mechTypes.
We'll probably need to reinstate some of this if we ever want to support
NegoEx.
Reported-by: Jason Burgess <jason@jacknife2.dns2go.com>
Reported-by: Yan Li <elliot.li.tech@gmail.com>
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Steve French <sfrench@us.ibm.com>
Takashi Iwai [Thu, 21 Mar 2013 16:20:12 +0000 (17:20 +0100)]
ALSA: hda - Fix DAC assignment for independent HP
The generic parser should evaluate the availability of the independent
HP when specified. Otherwise a DAC without the direct connection to
the corresponding pin may be assigned for the HP, but the driver
doesn't check it at all. The problem was actually seen on some
machines with VT1708s or equivalent codec, where DAC0 is assigned to
HP although it can be connected only via aamix.
This patch adds the badness evaluation for the independent HP to make
it working properly.
Reported-by: Lydia Wang <LydiaWang@viatech.com.cn>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Greg Kroah-Hartman [Thu, 21 Mar 2013 15:40:22 +0000 (08:40 -0700)]
Merge tag 'fixes-for-v3.9-rc4' of git://git./linux/kernel/git/balbi/usb into usb-linus
Felipe writes:
usb: fixes for v3.9-rc4
udc-core learned that it shouldn't use invalid pointers
when unloading a gadget driver.
net2272 and net2280 got a fix for a regression caused by
the udc_start/udc_stop conversion.
We're defining a static inline no-op for otg_ulpi_create()
to prevent build errors when that driver isn't enabled.
FunctionFS got a fix for an off-by-one error when binding
and unbinding instances of FunctionFS.
MUSB learned that it shouldn't try to unmap buffers which
weren't previously mapped.
f_rndis got a fix for a possible NULL pointer dereference
in a debugging message code.
MUSB's DA8xx glue layer got a build fix due to a typo.
Linus Torvalds [Thu, 21 Mar 2013 15:37:10 +0000 (08:37 -0700)]
Merge branch 'next' of git://git./linux/kernel/git/rzhang/linux
Pull thermal management fixes from Zhang Rui.
* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux:
thermal: exynos_thermal: return a proper error code while thermal_zone_device_register fail.
thermal: rcar_thermal: propagate return value of thermal_zone_device_register
Thermal: kirkwood: Convert to devm_ioremap_resource()
Thermal: rcar: Convert to devm_ioremap_resource()
Thermal: dove: Convert to devm_ioremap_resource()
thermal: rcar: fix missing unlock on error in rcar_thermal_update_temp()
Linus Torvalds [Thu, 21 Mar 2013 15:29:11 +0000 (08:29 -0700)]
Merge branch 'perf-urgent-for-linus' of git://git./linux/kernel/git/tip/tip
Pull perf fixes from Ingo Molnar:
"A fair chunk of the linecount comes from a fix for a tracing bug that
corrupts latency tracing buffers when the overwrite mode is changed on
the fly - the rest is mostly assorted fewliner fixlets."
* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
perf/x86: Add SNB/SNB-EP scheduling constraints for cycle_activity event
kprobes/x86: Check Interrupt Flag modifier when registering probe
kprobes: Make hash_64() as always inlined
perf: Generate EXIT event only once per task context
perf: Reset hwc->last_period on sw clock events
tracing: Prevent buffer overwrite disabled for latency tracers
tracing: Keep overwrite in sync between regular and snapshot buffers
tracing: Protect tracer flags with trace_types_lock
perf tools: Fix LIBNUMA build with glibc 2.12 and older.
tracing: Fix free of probe entry by calling call_rcu_sched()
perf/POWER7: Create a sysfs format entry for Power7 events
perf probe: Fix segfault
libtraceevent: Remove hard coded include to /usr/local/include in Makefile
perf record: Fix -C option
perf tools: check if -DFORTIFY_SOURCE=2 is allowed
perf report: Fix build with NO_NEWT=1
perf annotate: Fix build with NO_NEWT=1
tracing: Fix race in snapshot swapping
Linus Torvalds [Thu, 21 Mar 2013 15:27:58 +0000 (08:27 -0700)]
Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
Pull drm fixes from Dave Airlie:
"Radeon, intel and nouveau, along with one mgag200 fix
- intel fix for an ioctl overflow, along with a regression fix for
some phantom irqs on Ironlake.
- nouveau has a lockdep warning and a bunch of thermal fixes
- radeon has new pci ids and some minor fixes."
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: (26 commits)
drm/mgag200: Bug fix: Modified pll algorithm for EH project
drm/i915: stop using GMBUS IRQs on Gen4 chips
drm/nv50/kms: prevent lockdep false-positive in page flipping path
drm/nouveau/core: fix return value of nouveau_object_del()
MAINTAINERS: intel-gfx is no longer subscribers-only
drm/i915: Use the fixed pixel clock for eDP in intel_dp_set_m_n()
drm/nouveau/hwmon: do not expose a buggy temperature if it is unavailable
drm/nouveau/therm: display the availability of the internal sensor
drm/nouveau/therm: disable temperature management if the sensor isn't readable
drm/nouveau/therm: disable auto fan management if temperature is not available
drm/nv40/therm: reserve negative temperatures for errors
drm/nv40/therm: disable temperature reading if the bios misses some parameters
drm/nouveau/therm-ic: the temperature is off by sensor_constant, warn the user
drm/nouveau/therm: remove some confusion introduced by therm_mode
drm/nouveau/therm: do not make assumptions on temperature
drm/nv40/therm: increase the sensor's settling delay to 20ms
drm/nv40/therm: improve selection between the old and the new style
Revert "drm/i915: try to train DP even harder"
drm/radeon: add Richland pci ids
drm/radeon: add support for Richland APUs
...
Linus Torvalds [Thu, 21 Mar 2013 15:27:03 +0000 (08:27 -0700)]
Merge tag 'dm-3.9-fixes' of git://git./linux/kernel/git/agk/linux-dm
Pull device-mapper fixes from Alasdair G Kergon:
"Fix reported data loss with discards and thin snapshots; avoid a
deadlock observed in dm verity; fix a race in the new dm cache code
along with some other minor bugs; store the cache policy version on
disk to make the stored hints format future-proof."
* tag 'dm-3.9-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/agk/linux-dm:
dm cache: policy ignore hints if generated by different version
dm cache: policy change version from string to integer set
dm cache: fix race in writethrough implementation
dm cache: metadata clear dirty bits on clean shutdown
dm cache: avoid calling policy destructor twice on error
dm cache: detect cache_create failure
dm cache: avoid 64 bit division on 32 bit
dm verity: avoid deadlock
dm thin: fix non power of two discard granularity calc
dm thin: fix discard corruption
Paul Bolle [Wed, 20 Mar 2013 08:44:17 +0000 (09:44 +0100)]
usb: gadget: net2272: finally convert "CONFIG_USB_GADGET_NET2272_DMA"
The Kconfig symbol USB_GADGET_NET2272_DMA was renamed to USB_NET2272_DMA
in commit
193ab2a6070039e7ee2b9b9bebea754a7c52fd1b ("usb: gadget: allow
multiple gadgets to be built"). That commit did not convert the only
occurrence of the corresponding Kconfig macro. Convert that macro now.
Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Dave Airlie [Thu, 21 Mar 2013 00:17:38 +0000 (10:17 +1000)]
Merge branch 'drm-intel-fixes' of git://people.freedesktop.org/~danvet/drm-intel into drm-next
Daniel writes:
Bunch of fixes, all pretty high-priority
- Fix execbuf argument checking (Kees Cook)
- Optionally obfuscate kernel addresses in dumps (Kees Cook)
- Two patches from Takashi Iwai to fix DP link training regressions he's
seen.
- intel-gfx is no longer subscribers-only (well, just no longer moderated
in an annoying way for non-subscribers), update MAINTAINERS
- gm45 gmbus irq fallout fix (Jiri Kosina)
* 'drm-intel-fixes' of git://people.freedesktop.org/~danvet/drm-intel:
drm/i915: stop using GMBUS IRQs on Gen4 chips
MAINTAINERS: intel-gfx is no longer subscribers-only
drm/i915: Use the fixed pixel clock for eDP in intel_dp_set_m_n()
Revert "drm/i915: try to train DP even harder"
drm/i915: bounds check execbuffer relocation count
drm/i915: restrict kernel address leak in debugfs
Julia Lemire [Mon, 18 Mar 2013 14:17:47 +0000 (10:17 -0400)]
drm/mgag200: Bug fix: Modified pll algorithm for EH project
While testing the mgag200 kms driver on the HP ProLiant Gen8, a
bug was seen. Once the bootloader would load the selected kernel,
the screen would go black. At first it was assumed that the
mgag200 kms driver was hanging. But after setting up the grub
serial output, it was seen that the driver was being loaded
properly. After trying serval monitors, one finaly displayed
the message "Frequency Out of Range". By comparing the kms pll
algorithm with the previous mgag200 xorg driver pll algorithm,
discrepencies were found. Once the kms pll algorithm was
modified, the expected pll values were produced. This fix was
tested on several monitors of varying native resolutions.
Signed-off-by: Julia Lemire <jlemire@matrox.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
Alan Stern [Wed, 20 Mar 2013 19:07:26 +0000 (15:07 -0400)]
USB: EHCI: fix regression in QH unlinking
This patch (as1670) fixes a regression caused by commit
6402c796d3b4205d3d7296157956c5100a05d7d6 (USB: EHCI: work around
silicon bug in Intel's EHCI controllers). The workaround goes through
two IAA cycles for each QH being unlinked. During the first cycle,
the QH is not added to the async_iaa list (because it isn't fully gone
from the hardware yet), which means that list will be empty.
Unfortunately, I forgot to update the IAA watchdog timer routine. It
thinks that an empty async_iaa list means the timer expiration was an
error, which isn't true any more. This problem didn't show up during
initial testing because the controllers being tested all had working
IAA interrupts. But not all controllers do, and when the watchdog
timer expires, the empty-list check prevents the second IAA cycle from
starting. As a result, URB unlinks never complete. The check needs
to be removed.
Among the symptoms of the regression are processes stuck in D wait
states and hangs during system shutdown.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Reported-and-tested-by: Stephen Warren <swarren@wwwdotorg.org>
Reported-and-tested-by: Sven Joachim <svenjoac@gmx.de>
Reported-by: Andreas Bombe <aeb@debian.org>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Takashi Iwai [Fri, 15 Mar 2013 08:19:11 +0000 (09:19 +0100)]
ALSA: hda - Fix abuse of snd_hda_lock_devices() for DSP loader
The current DSP loader code abuses snd_hda_lock_devices() for ensuring
the DSP loader not conflicting with the other normal operations. But
this trick obviously doesn't work for the PM resume since the streams
are kept opened there where snd_hda_lock_devices() returns -EBUSY.
That means we need another lock mechanism instead of abuse.
This patch provides the new lock state to azx_dev. Theoretically it's
possible that the DSP loader conflicts with the stream that has been
already assigned for another PCM. If it's running, the DSP loader
should simply fail. If not -- it's the case for PM resume --, we
should assign this stream temporarily to the DSP loader, and take it
back to the PCM after finishing DSP loading. If the PCM is operated
during the DSP loading, it should get an error, too.
Reported-and-tested-by: Dylan Reid <dgreid@chromium.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Mike Snitzer [Wed, 20 Mar 2013 17:21:28 +0000 (17:21 +0000)]
dm cache: policy ignore hints if generated by different version
When reading the dm cache metadata from disk, ignore the policy hints
unless they were generated by the same major version number of the same
policy module.
The hints are considered to be private data belonging to the specific
module that generated them and there is no requirement for them to make
sense to different versions of the policy that generated them.
Policy modules are all required to work fine if no previous hints are
supplied (or if existing hints are lost).
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Mike Snitzer [Wed, 20 Mar 2013 17:21:27 +0000 (17:21 +0000)]
dm cache: policy change version from string to integer set
Separate dm cache policy version string into 3 unsigned numbers
corresponding to major, minor and patchlevel and store them at the end
of the on-disk metadata so we know which version of the policy generated
the hints in case a future version wants to use them differently.
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Joe Thornber [Wed, 20 Mar 2013 17:21:27 +0000 (17:21 +0000)]
dm cache: fix race in writethrough implementation
We have found a race in the optimisation used in the dm cache
writethrough implementation. Currently, dm core sends the cache target
two bios, one for the origin device and one for the cache device and
these are processed in parallel. This patch avoids the race by
changing the code back to a simpler (slower) implementation which
processes the two writes in series, one after the other, until we can
develop a complete fix for the problem.
When the cache is in writethrough mode it needs to send WRITE bios to
both the origin and cache devices.
Previously we've been implementing this by having dm core query the
cache target on every write to find out how many copies of the bio it
wants. The cache will ask for two bios if the block is in the cache,
and one otherwise.
Then main problem with this is it's racey. At the time this check is
made the bio hasn't yet been submitted and so isn't being taken into
account when quiescing a block for migration (promotion or demotion).
This means a single bio may be submitted when two were needed because
the block has since been promoted to the cache (catastrophic), or two
bios where only one is needed (harmless).
I really don't want to start entering bios into the quiescing system
(deferred_set) in the get_num_write_bios callback. Instead this patch
simplifies things; only one bio is submitted by the core, this is
first written to the origin and then the cache device in series.
Obviously this will have a latency impact.
deferred_writethrough_bios is introduced to record bios that must be
later issued to the cache device from the worker thread. This deferred
submission, after the origin bio completes, is required given that we're
in interrupt context (writethrough_endio).
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>
Joe Thornber [Wed, 20 Mar 2013 17:21:27 +0000 (17:21 +0000)]
dm cache: metadata clear dirty bits on clean shutdown
When writing the dirty bitset to the metadata device on a clean
shutdown, clear the dirty bits. Previously they were left indicating
the cache was dirty. This led to confusion about whether there really
was dirty data in the cache or not. (This was a harmless bug.)
Reported-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>
Heinz Mauelshagen [Wed, 20 Mar 2013 17:21:26 +0000 (17:21 +0000)]
dm cache: avoid calling policy destructor twice on error
If the cache policy's config values are not able to be set we must
set the policy to NULL after destroying it in create_cache_policy()
so we don't attempt to destroy it a second time later.
Signed-off-by: Heinz Mauelshagen <heinzm@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>