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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>
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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>
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Return error if cache_create() fails.
A missing return check made cache_ctr continue even after an error in
cache_create() resulting in the cache object being destroyed. So a
simple failure like an odd number of cache policy config value arguments
would result in an oops.
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>
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Squash various 32bit link errors.
>> on i386:
>> drivers/built-in.o: In function `is_discarded_oblock':
>> dm-cache-target.c:(.text+0x1ea28e): undefined reference to `__udivdi3'
...
Reported-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Joe Thornber <ejt@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
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A deadlock was found in the prefetch code in the dm verity map
function. This patch fixes this by transferring the prefetch
to a worker thread and skipping it completely if kmalloc fails.
If generic_make_request is called recursively, it queues the I/O
request on the current->bio_list without making the I/O request
and returns. The routine making the recursive call cannot wait
for the I/O to complete.
The deadlock occurs when one thread grabs the bufio_client
mutex and waits for an I/O to complete but the I/O is queued
on another thread's current->bio_list and is waiting to get
the mutex held by the first thread.
The fix recognises that prefetching is not essential. If memory
can be allocated, it queues the prefetch request to the worker thread,
but if not, it does nothing.
Signed-off-by: Paul Taysom <taysom@chromium.org>
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Cc: stable@kernel.org
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Fix a discard granularity calculation to work for non power of 2 block sizes.
In order for thinp to passdown discard bios to the underlying data
device, the data device must have a discard granularity that is a
factor of the thinp block size. Originally this check was done by
using bitops since the block_size was known to be a power of two.
Introduced by commit f13945d75730081830b6f3360266950e2b7c9067
("dm thin: support a non power of 2 discard_granularity").
Signed-off-by: Joe Thornber <ejt@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
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Fix a bug in dm_btree_remove that could leave leaf values with incorrect
reference counts. The effect of this was that removal of a shared block
could result in the space maps thinking the block was no longer used.
More concretely, if you have a thin device and a snapshot of it, sending
a discard to a shared region of the thin could corrupt the snapshot.
Thinp uses a 2-level nested btree to store it's mappings. This first
level is indexed by thin device, and the second level by logical
block.
Often when we're removing an entry in this mapping tree we need to
rebalance nodes, which can involve shadowing them, possibly creating a
copy if the block is shared. If we do create a copy then children of
that node need to have their reference counts incremented. In this
way reference counts percolate down the tree as shared trees diverge.
The rebalance functions were incrementing the children at the
appropriate time, but they were always assuming the children were
internal nodes. This meant the leaf values (in our case packed
block/flags entries) were not being incremented.
Cc: stable@vger.kernel.org
Signed-off-by: Joe Thornber <ejt@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
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The udc_irq service runs the isr_tr_complete_handler which in turn
"nukes" the endpoints, including a call to rndis_response_complete,
if appropriate. If the rndis_msg_parser fails here, an error will
be printed using a dev_err call (through the ERROR() macro).
However, if the usb cable was just disconnected the device (cdev)
might not be available and will be null. Since the dev_err macro will
dereference the cdev pointer we get a null pointer exception.
Reviewed-by: Radovan Lekanovic <radovan.lekanovic@sonymobile.com>
Signed-off-by: Truls Bengtsson <truls.bengtsson@sonymobile.com>
Signed-off-by: Oskar Andero <oskar.andero@sonymobile.com>
Acked-by: Michal Nazarewicz <mina86@mina86.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
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This patch fixes an "off-by-one" bug found in
581791f (FunctionFS: enable multiple functions).
During gfs_bind/gfs_unbind the functionfs_bind/functionfs_unbind should be
called for every functionfs instance. With the "i" pre-decremented they
were not called for the zeroth instance.
Acked-by: Michal Nazarewicz <mina86@mina86.com>
Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Cc: <stable@vger.kernel.org>
[ balbi@ti.com : added offending commit's subject ]
Signed-off-by: Felipe Balbi <balbi@ti.com>
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This patch (as1667) removes an incorrect driver->unbind() call from
the net2280 driver. If startup fails, the UDC core takes care of
unbinding the gadget driver automatically; the controller driver
shouldn't do it too.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Felipe Balbi <balbi@ti.com>
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This patch (as1666) fixes a regression in the UDC core. The core
takes care of unbinding gadget drivers, and it does the unbinding
before telling the UDC driver to turn off the controller hardware.
When the call to the udc_stop callback is made, the gadget no longer
has a driver. The callback routine should not be invoked with a
pointer to the old driver; doing so can cause problems (such as
use-after-free accesses in net2280).
This patch should be applied, with appropriate context changes, to all
the stable kernels going back to 3.1.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
CC: <stable@vger.kernel.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
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with the latest udc_start/udc_stop conversion,
too much code was deleted which ended up creating
a regression in net2272 and net2280 drivers.
To fix the regression we revert one hunk of the
original commits.
Signed-off-by: Felipe Balbi <balbi@ti.com>
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into drm-next
Alex writes:
"Mostly just small bug fixes. Big change is new pci ids
for Richland APUs."
* 'drm-fixes-3.9' of git://people.freedesktop.org/~agd5f/linux:
drm/radeon: add Richland pci ids
drm/radeon: add support for Richland APUs
drm/radeon/benchmark: allow same domains for dma copy
drm/radeon/benchmark: make sure bo blit copy exists before using it
drm/radeon: fix backend map setup on 1 RB trinity boards
drm/radeon: fix S/R on VM systems (cayman/TN/SI)
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git://anongit.freedesktop.org/git/nouveau/linux-2.6 into drm-next
Lots of thermal fixes and fix a lockdep warning we've been seeing.
* 'drm-nouveau-fixes-3.9' of git://anongit.freedesktop.org/git/nouveau/linux-2.6:
drm/nv50/kms: prevent lockdep false-positive in page flipping path
drm/nouveau/core: fix return value of nouveau_object_del()
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
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Pull vfio fix from Alex Williamson.
* tag 'vfio-v3.9-rc4' of git://github.com/awilliam/linux-vfio:
vfio: include <linux/slab.h> for kmalloc
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Commit 28c70f162 ("drm/i915: use the gmbus irq for waits") switched to
using GMBUS irqs instead of GPIO bit-banging for chipset generations 4
and above.
It turns out though that on many systems this leads to spurious interrupts
being generated, long after the register write to disable the IRQs has been
issued.
Typically this results in the spurious interrupt source getting
disabled:
[ 9.636345] irq 16: nobody cared (try booting with the "irqpoll" option)
[ 9.637915] Pid: 4157, comm: ifup Tainted: GF 3.9.0-rc2-00341-g0863702 #422
[ 9.639484] Call Trace:
[ 9.640731] <IRQ> [<ffffffff8109b40d>] __report_bad_irq+0x1d/0xc7
[ 9.640731] [<ffffffff8109b7db>] note_interrupt+0x15b/0x1e8
[ 9.640731] [<ffffffff810999f7>] handle_irq_event_percpu+0x1bf/0x214
[ 9.640731] [<ffffffff81099a88>] handle_irq_event+0x3c/0x5c
[ 9.640731] [<ffffffff8109c139>] handle_fasteoi_irq+0x7a/0xb0
[ 9.640731] [<ffffffff8100400e>] handle_irq+0x1a/0x24
[ 9.640731] [<ffffffff81003d17>] do_IRQ+0x48/0xaf
[ 9.640731] [<ffffffff8142f1ea>] common_interrupt+0x6a/0x6a
[ 9.640731] <EOI> [<ffffffff8142f952>] ? system_call_fastpath+0x16/0x1b
[ 9.640731] handlers:
[ 9.640731] [<ffffffffa000d771>] usb_hcd_irq [usbcore]
[ 9.640731] [<ffffffffa0306189>] yenta_interrupt [yenta_socket]
[ 9.640731] Disabling IRQ #16
The really curious thing is now that irq 16 is _not_ the interrupt for
the i915 driver when using MSI, but it _is_ the interrupt when not
using MSI. So by all indications it seems like gmbus is able to
generate a legacy (shared) interrupt in MSI mode on some
configurations. I've tried to reproduce this and the differentiating
thing seems to be that on unaffected systems no other device uses irq
16 (which seems to be the non-MSI intel gfx interrupt on all gm45).
I have no idea how that even can happen.
To avoid tempting this elephant into a rage, just disable gmbus
interrupt support on gen 4.
v2: Improve the commit message with exact details of what's going on.
Also add a comment in the code to warn against this particular
elephant in the room.
v3: Move the comment explaing how gen4 blows up next to the definition
of HAS_GMBUS_IRQ to keep the code-flow straight. Suggested by Chris
Wilson.
Signed-off-by: Jiri Kosina <jkosina@suse.cz> (v1)
Acked-by: Chris Wilson <chris@chris-wilson.co.uk>
References: https://lkml.org/lkml/2013/3/8/325
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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Mantas Mikulėnas reported that his graphics hardware failed to
initialise after commit f9a37be0f02a ("x86: Use PCI setup data").
The aim of this commit was to ensure that ROM images were available on
some Apple systems that don't expose the GPU ROM via any other source.
In this case, UEFI appears to have provided a broken ROM image that we
were using even though there was a perfectly valid ROM available via
other sources. The simplest way to handle this seems to be to just
re-order pci_map_rom() and leave any firmare-supplied ROM to last.
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
Tested-by: Mantas Mikulėnas <grawity@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Pull sparc fixes from David Miller:
"Just some minor fixups, a sunsu console setup panic cure, and
recognition of a Fujitsu sun4v cpu."
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc:
sparc: remove unused "config BITS"
sparc: delete "if !ULTRA_HAS_POPULATION_COUNT"
sparc64: correctly recognize SPARC64-X chips
sparc,leon: fix GRPCI2 device0 PCI config space access
sunsu: Fix panic in case of nonexistent port at "console=ttySY" cmdline option
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Pull networking fixes from David Miller:
1) Fix ARM BPF JIT handling of negative 'k' values, from Chen Gang.
2) Insufficient space reserved for bridge netlink values, fix from
Stephen Hemminger.
3) Some dst_neigh_lookup*() callers don't interpret error pointer
correctly, fix from Zhouyi Zhou.
4) Fix transport match in SCTP active_path loops, from Xugeng Zhang.
5) Fix qeth driver handling of multi-order SKB frags, from Frank
Blaschka.
6) fec driver is missing napi_disable() call, resulting in crashes on
unload, from Georg Hofmann.
7) Don't try to handle PMTU events on a listening socket, fix from Eric
Dumazet.
8) Fix timestamp location calculations in IP option processing, from
David Ward.
9) FIB_TABLE_HASHSZ setting is not controlled by the correct kconfig
tests, from Denis V Lunev.
10) Fix TX descriptor push handling in SFC driver, from Ben Hutchings.
11) Fix isdn/hisax and tulip/de4x5 kconfig dependencies, from Arnd
Bergmann.
12) bnx2x statistics don't handle 4GB rollover correctly, fix from
Maciej Żenczykowski.
13) Openvswitch bug fixes for vport del/new error reporting, missing
genlmsg_end() call in netlink processing, and mis-parsing of
LLC/SNAP ethernet types. From Rich Lane.
14) SKB pfmemalloc state should only be propagated from the head page of
a compound page, fix from Pavel Emelyanov.
15) Fix link handling in tg3 driver for 5715 chips when autonegotation
is disabled. From Nithin Sujir.
16) Fix inverted test of cpdma_check_free_tx_desc return value in
davinci_emac driver, from Mugunthan V N.
17) vlan_depth is incorrectly calculated in skb_network_protocol(), from
Li RongQing.
18) Fix probing of Gobi 1K devices in qmi_wwan driver, and fix NCM
device mode backwards compat in cdc_ncm driver. From Bjørn Mork.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (52 commits)
inet: limit length of fragment queue hash table bucket lists
qeth: Fix scatter-gather regression
qeth: Fix invalid router settings handling
qeth: delay feature trace
tcp: dont handle MTU reduction on LISTEN socket
bnx2x: fix occasional statistics off-by-4GB error
vhost/net: fix heads usage of ubuf_info
bridge: Add support for setting BR_ROOT_BLOCK flag.
bnx2x: add missing napi deletion in error path
drivers: net: ethernet: ti: davinci_emac: fix usage of cpdma_check_free_tx_desc()
ethernet/tulip: DE4x5 needs VIRT_TO_BUS
isdn: hisax: netjet requires VIRT_TO_BUS
net: cdc_ncm, cdc_mbim: allow user to prefer NCM for backwards compatibility
rtnetlink: Mask the rta_type when range checking
Revert "ip_gre: make ipgre_tunnel_xmit() not parse network header as IP unconditionally"
Fix dst_neigh_lookup/dst_neigh_lookup_skb return value handling bug
smsc75xx: configuration help incorrectly mentions smsc95xx
net: fec: fix missing napi_disable call
net: fec: restart the FEC when PHY speed changes
skb: Propagate pfmemalloc on skb from head page only
...
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This patch fixes a scatter-gather regression introduced with
commit 5640f768 net: use a per task frag allocator
Now the qeth driver can cope with bigger framents and split a fragment in
sub framents if required.
Signed-off-by: Frank Blaschka <blaschka@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Give a bad return code when specifying a router setting that is either
invalid or not support on the respective device type. In addition, fall back
the previous setting instead of silently switching back to 'no routing'.
Signed-off-by: Stefan Raspl <raspl@linux.vnet.ibm.com>
Signed-off-by: Frank Blaschka <blaschka@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Delay tracing of the card features until the optional commands have been
enabled.
Signed-off-by: Stefan Raspl <raspl@linux.vnet.ibm.com>
Signed-off-by: Frank Blaschka <blaschka@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging
Pull hwmon fixes from Jean Delvare.
* 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging:
hwmon: (lm75) Fix tcn75 prefix
hwmon: (lm75.h) Update header inclusion
MAINTAINERS: Remove Mark M. Hoffman
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File lm75.h used to include <linux/hwmon.h> for SENSORS_LIMIT() but
this function is gone by now. Instead we call clamp_val() so we should
include <linux/kernel.h>, where this function is declared.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
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The UPDATE_QSTAT function introduced on February 15, 2012
in commit 1355b704b9ba "bnx2x: consistent statistics after
internal driver reload" incorrectly fails to handle overflow
during addition of the lower 32-bit field of a stat.
This bug is present since 3.4-rc1 and should thus be considered
a candidate for stable 3.4+ releases.
Google-Bug-Id: 8374428
Signed-off-by: Maciej Żenczykowski <maze@google.com>
Cc: Mintz Yuval <yuvalmin@broadcom.com>
Acked-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Pull MTD fixes from David Woodhouse:
"This fixes a couple of problems. Firstly, some people are actually
still using old small-page flash and we broke it by removing the ready
check.
Secondly. fix the handling of partitions on Broadcom 47xx devices.
Recent changes had made it misdetect the location of the NVRAM and
scribble over the bootloader when it tried to update the variables
there. With predictably sad results."
* tag 'for-linus-20130318' of git://git.infradead.org/linux-mtd:
mtd: nand: reintroduce NAND_NO_READRDY as NAND_NEED_READRDY
mtd: bcm47xxpart: look for NVRAM at the end of device
Revert "mtd: bcm47xxpart: improve probing of nvram partition"
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According to XHCI specification (5.5.2.1) the IP is bit 0 and IE is bit 1
of IMAN register. Previously their definitions were reversed.
Even though there are no ill effects being observed from the swapped
definitions (because IMAN_IP is RW1C and in legacy PCI case we come in
with it already set to 1 so it was clearing itself even though we were
setting IMAN_IE instead of IMAN_IP), we should still correct the values.
This patch should be backported to kernels as old as 2.6.36, that
contain the commit 4e833c0b87a30798e67f06120cecebef6ee9644c "xhci: don't
re-enable IE constantly".
Signed-off-by: Dmitry Torokhov <dtor@vmware.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Cc: stable@vger.kernel.org
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git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull s390 fixes from Martin Schwidefsky:
"A couple of bug fixes, the most hairy on is the flush_tlb_kernel_range
fix. Another case of "how could this ever have worked?"."
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
s390/kdump: Do not add standby memory for kdump
drivers/i2c: remove !S390 dependency, add missing GENERIC_HARDIRQS dependencies
s390/scm: process availability
s390/scm_blk: suspend writes
s390/scm_drv: extend notify callback
s390/scm_blk: fix request number accounting
s390/mm: fix flush_tlb_kernel_range()
s390/mm: fix vmemmap size calculation
s390: critical section cleanup vs. machine checks
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Pull ARM SoC bug fixes from Arnd Bergmann:
"Things are calming down for arm-soc as well. This set of bug fixes is
dominated in size by the at91 platform bug fixes. Some of them were
meant to go through the framebuffer tree during the merge window, but
since the framebuffer maintainer could not be reached, I offered to
take them here. The other notable at91 change is the addition of
pinctrl definitions to fix the NAND controller.
The rest are mostly simple regression fixes:
- Our removal of VIRT_TO_BUS conflicted with Stephen Rothwell's
renaming of the Kconfig symbol. You will get a trivial merge
conflict here, we still want to remove it.
- missing bits for clocks on imx and s5pv210
- missing header inclusions in mmp and shmobile
- typos in s5pv210 camera and vt8500 clock support code
and three trivial fixes for pre-3.8 bugs:
- an old bogus build warning in the joystick driver
- a misleading Kconfig description
- a NULL pointer check on davinci"
* tag 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
ARM: fix CONFIG_VIRT_TO_BUS handling
ARM: i.MX35: enable MAX clock
ARM: Scorpion is a v7 architecture, not v6
ARM: mmp: add platform_device head file in gplugd
input/joystick: use get_cycles on ARM
[media] s5p-fimc: fix s5pv210 build
clk: vt8500: Fix "fix device clock divisor calculations"
ARM: i.MX25: Fix DT compilation
ARM: at91: fix infinite loop in at91_irq_suspend/resume
ARM: at91: add gpio suspend/resume support when using pinctrl
ARM: at91: fix LCD-wiring mode
atmel_lcdfb: fix 16-bpp modes on older SOCs
ARM: at91: dt: at91sam9x5: complete NAND pinctrl
ARM: at91: dt: at91sam9x5: correct NAND pins comments
ARM: davinci: edma: fix dmaengine induced null pointer dereference on da830
ARM: shmobile: marzen: Include mmc/host.h
ARM: EXYNOS: Add #dma-cells for generic dma binding support for PL330
ARM: S5PV210: Fix PL330 DMA controller clkdev entries
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Pull ARM fixes from Russell King:
"Just three fixes this time - a fix for a fix for our memset function,
fixing the dummy clockevent so that it doesn't interfere with real
hardware clockevents, and fixing a build error for Tegra."
* 'fixes' of git://git.linaro.org/people/rmk/linux-arm:
ARM: 7675/1: amba: tegra-ahb: Fix build error w/ PM_SLEEP w/o PM_RUNTIME
ARM: 7674/1: smp: Avoid dummy clockevent being preferred over real hardware clock-event
ARM: 7670/1: fix the memset fix
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The eDP output on HP Z1 is still broken when X is started even after
fixing the infinite link-train loop. The regression was introduced in
3.6 kernel for cleaning up the mode clock handling code in intel_dp.c
by the commit [71244653: drm/i915: adjusted_mode->clock in the dp
mode_fix].
In the past, the clock of the reference mode was modified in
intel_dp_mode_fixup() in the case of eDP fixed clock, and this clock was
used for calculating in intel_dp_set_m_n(). This override was removed,
thus the wrong mode clock is used for the calculation, resulting in a
psychedelic smoking output in the end.
This patch corrects the clock to be used in the place.
v1->v2: Use intel_edp_target_clock() for checking eDP fixed clock
instead of open code as in ironlake_set_m_n().
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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musb does not use DMA buffer for ep0 but it uses the same giveback
function *musb_g_giveback* for all endpoints (*musb_g_ep0_giveback* calls
*musb_g_giveback*). So for ep0 case request.dma will be '0'
and will result in kernel OOPS if tried to *unmap_dma_buffer* for requests in
ep0. Fixed it by doing *unmap_dma_buffer* only for valid DMA addr and
checking that musb_ep->dma is valid when unmapping.
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
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Signed-off-by: Martin Peres <martin.peres@labri.fr>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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Signed-off-by: Martin Peres <martin.peres@labri.fr>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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Signed-off-by: Martin Peres <martin.peres@labri.fr>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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Signed-off-by: Martin Peres <martin.peres@labri.fr>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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Signed-off-by: Martin Peres <martin.peres@labri.fr>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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Reported-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Tested-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: Martin Peres <martin.peres@labri.fr>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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Signed-off-by: Martin Peres <martin.peres@labri.fr>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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The kernel message "[ PTHERM][0000:01:00.0] Thermal management: disabled"
is misleading as it actually means "fan management: disabled".
This patch fixes both the source and the message to improve readability.
Signed-off-by: Martin Peres <martin.peres@labri.fr>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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In nouveau_therm_sensor_event, temperature is stored as an uint8_t
even though the original interface returns an int.
This change should make it more obvious when the sensor is either
very-ill-calibrated or when we selected the wrong sensor style
on the nv40 family.
Signed-off-by: Martin Peres <martin.peres@labri.fr>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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Based on my experience, 10ms wasn't always enough. Let's bump that
to a little more.
If this turns out to be insufficient-enough again, then an approach
based on letting the sensor settle for several seconds before starting
polling on the temperature would be better suited. This way, boot time
wouldn't be impacted by those waits too much.
Signed-off-by: Martin Peres <martin.peres@labri.fr>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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The condition to select between the old and new style was a thinko
as rnndb orders chipsets based on their release date (or general
chronologie hw-wise) and not based on their chipset number.
As the nv40 family is a mess when it comes to numbers, this patch
introduces a switch-based selection between the old and new style.
Signed-off-by: Martin Peres <martin.peres@labri.fr>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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This reverts commit 0d71068835e2610576d369d6d4cbf90e0f802a71.
Not only that the commit introduces a bogus check (voltage_tries == 5
will never meet at the inserted code path), it brings the i915 driver
into an endless dp-train loop on HP Z1 desktop machine with IVY+eDP.
At least reverting this commit recovers the framebuffer (but X is
still broken by other reasons...)
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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ubuf info allocator uses guest controlled head as an index,
so a malicious guest could put the same head entry in the ring twice,
and we will get two callbacks on the same value.
To fix use upend_idx which is guaranteed to be unique.
Reported-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Cc: stable@kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
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If the hardware initialization fails in bnx2x_nic_load() after adding
napi objects, they would not be deleted. A subsequent attempt to unload
the bnx2x module detects a corruption in the napi list.
Add the missing napi deletion to the error path.
Signed-off-by: Michal Schmidt <mschmidt@redhat.com>
Acked-by: Dmitry Kravkov <dmitry@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless
John W. Linville says:
====================
On the NFC bits, Samuel says:
"With this one we have:
- A fix for properly decreasing socket ack log.
- A timer and works cleanup upon NFC device removal.
- A monitoroing socket cleanup round from llcp_socket_release.
- A proper error report to pending sockets upon NFC device removal."
Regarding the Bluetooth bits, Gustavo says:
"I have these two patches for 3.9, these add support for two more devices to
the bluetooth drivers."
Along with those, we have a few wireless driver fixes...
Bing Zhao provides an mwifiex to prevent an out-of-bounds memory
access.
John Crispin offers a Kconfig fix to enable some otherwise dead code
in rt2x00. The correct symbols were added in -rc1 through a different
tree, but the symbols for enabling the wireless driver didn't match.
Larry Finger brings an rtlwifi fix for a scheduling while atomic bug,
and another fix for a reassociation problem caused by failing to
clear the BSSID after a disconnect.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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cpdma_check_free_tx_desc()
Fix which was done in the following commit in cpsw driver has
to be taken forward to davinci emac driver as well.
commit d35162f89b8f00537d7b240b76d2d0e8b8d29aa0
Author: Daniel Mack <zonque@gmail.com>
Date: Tue Mar 12 06:31:19 2013 +0000
net: ethernet: cpsw: fix usage of cpdma_check_free_tx_desc()
Commit fae50823d0 ("net: ethernet: davinci_cpdma: Add boundary for rx
and tx descriptors") introduced a function to check the current
allocation state of tx packets. The return value is taken into account
to stop the netqork queue on the adapter in case there are no free
slots.
However, cpdma_check_free_tx_desc() returns 'true' if there is room in
the bitmap, not 'false', so the usage of the function is wrong.
Reported-by: Prabhakar Lad <prabhakar.csengg@gmail.com>
Tested-by: Prabhakar Lad <prabhakar.csengg@gmail.com>
Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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