arm: Add ARM ERRATA 775420 workaround
Workaround for the 775420 Cortex-A9 (r2p2, r2p6,r2p8,r2p10,r3p0) erratum.
In case a date cache maintenance operation aborts with MMU exception, it
might cause the processor to deadlock. This workaround puts DSB before
executing ISB if an abort may occur on cache maintenance.
Based on work by Kouei Abe and feedback from Catalin Marinas.
Signed-off-by: Kouei Abe <kouei.abe.cp@rms.renesas.com>
[ horms@verge.net.au: Changed to implementation
suggested by catalin.marinas@arm.com ]
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Simon Horman <horms@verge.net.au>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Pull drm fixes from Dave Airlie:
"The three nouveau fixes quiten unneeded dmesg spam that people are
seeing and pondering,
The udl fix stops it from trying to driver monitors that are too big,
where we get a black screen.
And a vmware memory alloc problem."
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
drm/nvc0/fifo: ignore bits in PFIFO_INTR that aren't set in PFIFO_INTR_EN
drm/udl: limit modes to the sku pixel limits.
vmwgfx: corruption in vmw_event_fence_action_create()
drm/nvc0/ltcg: mask off intr 0x10
drm/nouveau: silence a debug message triggered by newer userspace
Here are two USB bugfixes for your 3.6-rc7 tree.
The OHCI fix has been reported a number of times and is a regression
from 3.5, and the patch that causes the regression was on the way to the
-stable trees before I was reminded (again) that this fix needed to get
to your tree soon.
The host controller bugfix was reported in older kernels as being pretty
easy to trigger, and has been tested by Red Hat and their customers.
Both have been in the usb-next branch in the -next tree for a while now,
I just cherry-picked them out to get to you in time for the 3.6 release.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.19 (GNU/Linux)
iEYEABECAAYFAlBkftYACgkQMUfUDdst+ymiqQCg17kPAosZg92EaXUb6uYjM5P1
F2IAoKmPARaDJOQxRapr0S/G9t89mjr1
=H+8v
-----END PGP SIGNATURE-----
Merge tag 'usb-3.6-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB fixes from Greg Kroah-Hartman:
"Here are two USB bugfixes for your 3.6-rc7 tree.
The OHCI fix has been reported a number of times and is a regression
from 3.5, and the patch that causes the regression was on the way to
the -stable trees before I was reminded (again) that this fix needed
to get to your tree soon.
The host controller bugfix was reported in older kernels as being
pretty easy to trigger, and has been tested by Red Hat and their
customers.
Both have been in the usb-next branch in the -next tree for a while
now, I just cherry-picked them out to get to you in time for the 3.6
release.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>"
* tag 'usb-3.6-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
USB: Fix race condition when removing host controllers
USB: ohci-at91: fix null pointer in ohci_hcd_at91_overcurrent_irq
Also fix the calls to next_packet_size() for the pause case. This was
missed in 245baf983 ("ALSA: snd-usb: fix calls to next_packet_size").
Signed-off-by: Daniel Mack <zonque@gmail.com>
Reviewed-by: Takashi Iwai <tiwai@suse.de>
Reported-and-tested-by: Christian Tefzer <ctrefzer@gmx.de>
Cc: stable@kernel.org
[ Taking directly because Takashi is on vacation - Linus ]
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
One small and obvious driver-specific fix.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.12 (GNU/Linux)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=KcUF
-----END PGP SIGNATURE-----
Merge tag 'asoc-3.6' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound
Pull ASoC update from Mark Brown:
"One small and obvious driver-specific fix.
Takashi is on vacation now so he asked me to send directly, it's a
pretty bad bug with low regression risk."
* tag 'asoc-3.6' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound:
ASoC: wm2000: Correct register size
Here's a bugfix for orion5x. Without this, PCI doesn't initialize properly
because of too small coherent pool to cover the allocations needed.
A similar fix has already been done on kirkwood.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.11 (GNU/Linux)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=Og96
-----END PGP SIGNATURE-----
Merge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull one more arm-soc bugfix from Olof Johansson:
"Here's a bugfix for orion5x. Without this, PCI doesn't initialize
properly because of too small coherent pool to cover the allocations
needed.
A similar fix has already been done on kirkwood."
* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
ARM: Orion5x: Fix too small coherent pool.
Pull ARM dma-mapping fix from Marek Szyprowski:
"This patch fixes a potential memory leak in the ARM dma-mapping code."
* 'fixes-for-3.6' of git://git.linaro.org/people/mszyprowski/linux-dma-mapping:
ARM: dma-mapping: Fix potential memory leak in atomic_pool_init()
driver where a callback ignores one of its arguments. It needs
to go into stable too so sending this upstream immediately.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.12 (GNU/Linux)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=RGSW
-----END PGP SIGNATURE-----
Merge tag 'gpio-fixes-v3.6' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio
Pull GPIO fix from Linus Walleij:
"A late GPIO fix: Roland Stigge found a problem in the LPC32xx driver
where a callback ignores one of its arguments. It needs to go into
stable too so sending this upstream immediately."
* tag 'gpio-fixes-v3.6' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio:
gpio-lpc32xx: Fix value handling of gpio_direction_output()
One (missing spinlock init) was only introduced recently.
The other has been present as long as raid10 has been supported,
so is tagged for -stable.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.18 (GNU/Linux)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=tizU
-----END PGP SIGNATURE-----
Merge tag 'md-3.6-fixes' of git://neil.brown.name/md
Pull two md bugfixes from NeilBrown:
"One (missing spinlock init) was only introduced recently. The other
has been present as long as raid10 has been supported, so is tagged
for -stable."
* tag 'md-3.6-fixes' of git://neil.brown.name/md:
md/raid10: fix "enough" function for detecting if array is failed.
md/raid5: add missing spin_lock_init.
Pull EDAC fixes from Mauro Carvalho Chehab:
"Three edac fixes at the memory enumeration logic:
- i3200_edac: Fixes a regression at the memory rank size, when the
memorias are dual-rank;
- i5000_edac: Fix a longstanding bug when calculating the memory
size: before Kernel 3.6, the memory size were right only
with one specific configuration;
- sb_edac: Fixes a bug since the initial release of the driver:
with 16GB DIMMs, there's an overflow at the memory size,
causing the number of pages per dimm (an unsigned value)
to have the highest bit equal to 1, effectively mangling
the memory size.
The third bug can potentially affect the error decoding logic as well."
* git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-edac:
sb_edac: Avoid overflow errors at memory size calculation
i5000: Fix the memory size calculation with 2R memories
i3200_edac: Fix memory rank size
"Search list for X" sounds like you're trying to find X on a list.
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This patch (as1607) fixes a race that can occur if a USB host
controller is removed while a process is reading the
/sys/kernel/debug/usb/devices file.
The usb_device_read() routine uses the bus->root_hub pointer to
determine whether or not the root hub is registered. The is not a
valid test, because the pointer is set before the root hub gets
registered and remains set even after the root hub is unregistered and
deallocated. As a result, usb_device_read() or usb_device_dump() can
access freed memory, causing an oops.
The patch changes the test to use the hcd->rh_registered flag, which
does get set and cleared at the appropriate times. It also makes sure
to hold the usb_bus_list_lock mutex while setting the flag, so that
usb_device_read() will become aware of new root hubs as soon as they
are registered.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Reported-by: Don Zickus <dzickus@redhat.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Another spurious dmesg quitening.
* 'drm-nouveau-fixes' of git://anongit.freedesktop.org/git/nouveau/linux-2.6:
drm/nvc0/fifo: ignore bits in PFIFO_INTR that aren't set in PFIFO_INTR_EN
The 'enough' function is written to work with 'near' arrays only
in that is implicitly assumes that the offset from one 'group' of
devices to the next is the same as the number of copies.
In reality it is the number of 'near' copies.
So change it to make this number explicit.
This bug makes it possible to run arrays without enough drives
present, which is dangerous.
It is appropriate for an -stable kernel, but will almost certainly
need to be modified for some of them.
Cc: stable@vger.kernel.org
Reported-by: Jakub Husák <jakub@gooseman.cz>
Signed-off-by: NeilBrown <neilb@suse.de>
Some Orion5x devices allocate their coherent buffers from atomic
context. Increase size of atomic coherent pool to make sure such the
allocations won't fail during boot.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Acked-by: Jason Cooper <jason@lakedaemon.net>
Signed-off-by: Olof Johansson <olof@lixom.net>
PFIFO_INTR = 0x40000000 appears to be a normal case on nvc0/nve0 PFIFO,
the binary driver appears to completely ignore it in its PFIFO interrupt
handler and even masks off the bit (as we do) in PFIFO_INTR_EN at init
time.
The bits still light up in the hardware sometimes though, so lets just
ignore any bits we haven't explicitely requested.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Commit d97b46a64 ("syscalls, x86: add __NR_kcmp syscall" ) added a new
syscall to support checkpoint restore. It is currently x86-only, but
that restriction will be removed in a subsequent patch. Unfortunately,
the kernel checksyscalls script had a bug which suppressed any warning
to other architectures that the kcmp syscall was not implemented. A
patch to checksyscalls is being tested in linux-next and other
architectures are seeing warnings about kcmp being unimplemented.
This patch adds __NR_kcmp to <asm-generic/unistd.h> so that kcmp is
wired in for architectures using the generic syscall list.
Signed-off-by: Mark Salter <msalter@redhat.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Otherwise when X starts we commonly get a black screen scanning
out nothing, its wierd dpms on/off from userspace brings it back,
With this on F18, multi-seat works again with my 1920x1200 monitor
which is above the sku limit for the device I have.
Cc: stable@vger.kernel.org
Reviewed-by: Alex Deucher <alexander.deucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
We don't allocate enough data for this struct. As soon as we start
modifying event->event on the next lines, then we're going beyond the
end of the memory we allocated.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
cc: stable@vger.kernel.org
Signed-off-by: Dave Airlie <airlied@gmail.com>
These just silence some printks that we are seeing that we shouldn't
* 'drm-nouveau-fixes' of git://anongit.freedesktop.org/git/nouveau/linux-2.6:
drm/nvc0/ltcg: mask off intr 0x10
drm/nouveau: silence a debug message triggered by newer userspace
NVIDIA do that at startup too on Fermi, so perhaps the heap of 0x10
intrs we receive are normal and we can ignore them.
On Kepler NVIDIA *don't* do this, but the hardware appears to come up
with the bit masked off by default - so that's probably why :)
This should silence some interrupt spam seen on Fermi+ boards.
Backported patch from reworked nouveau kernel tree.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Pull more networking fixes from David Miller:
1) Eric Dumazet discovered and fixed what turned out to be a family of
bugs. These functions were using pskb_may_pull() which might need
to reallocate the linear SKB data buffer, but the callers were not
expecting this possibility. The callers have cached pointers to the
packet header areas, and would need to reload them if we were to
continue using pskb_may_pull().
So they could end up reading garbage.
It's easier to just change these RAW4/RAW6/MIP6 routines to use
skb_header_pointer() instead of pskb_may_pull(), which won't modify
the linear SKB data area.
2) Dave Jone's syscall spammer caught a case where a non-TCP socket can
call down into the TCP keepalive code. The case basically involves
creating a raw socket with sk_protocol == IPPROTO_TCP, then calling
setsockopt(sock_fd, SO_KEEPALIVE, ...)
Fixed by Eric Dumazet.
3) Bluetooth devices do not get configured properly while being powered
on, resulting in always using legacy pairing instead of SSP. Fix
from Andrzej Kaczmarek.
4) Bluetooth cancels delayed work erroneously, put stricter checks in
place. From Andrei Emeltchenko.
5) Fix deadlock between cfg80211_mutex and reg_regdb_search_mutex in
cfg80211, from Luis R. Rodriguez.
6) Fix interrupt double release in iwlwifi, from Emmanuel Grumbach.
7) Missing module license in bcm87xx driver, from Peter Huewe.
8) Team driver can lose port changed events when adding devices to a
team, fix from Jiri Pirko.
9) Fix endless loop when trying ot unregister PPPOE device in zombie
state, from Xiaodong Xu.
10) batman-adv layer needs to set MAC address of software device
earlier, otherwise we call tt_local_add with it uninitialized.
11) Fix handling of KSZ8021 PHYs, it's matched currently by KS8051 but
that doesn't program the device properly. From Marek Vasut.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net:
ipv6: mip6: fix mip6_mh_filter()
ipv6: raw: fix icmpv6_filter()
net: guard tcp_set_keepalive() to tcp sockets
phy/micrel: Add missing header to micrel_phy.h
phy/micrel: Rename KS80xx to KSZ80xx
phy/micrel: Implement support for KSZ8021
batman-adv: Fix symmetry check / route flapping in multi interface setups
batman-adv: Fix change mac address of soft iface.
pppoe: drop PPPOX_ZOMBIEs in pppoe_release
team: send port changed when added
ipv4: raw: fix icmp_filter()
net/phy/bcm87xx: Add MODULE_LICENSE("GPL") to GPL driver
iwlwifi: don't double free the interrupt in failure path
cfg80211: fix possible circular lock on reg_regdb_search()
Bluetooth: Fix not removing power_off delayed work
Bluetooth: Fix freeing uninitialized delayed works
Bluetooth: mgmt: Fix enabling LE while powered off
Bluetooth: mgmt: Fix enabling SSP while powered off
mip6_mh_filter() should not modify its input, or else its caller
would need to recompute ipv6_hdr() if skb->head is reallocated.
Use skb_header_pointer() instead of pskb_may_pull()
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
- fix the behaviour of batman-adv in case of virtual interface MAC change event
- fix symmetric link check in neighbour selection
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.19 (GNU/Linux)
iEYEABECAAYFAlBffHkACgkQpGgxIkP9cweh4gCfRow8tAL8CnrzFV7cAyTXrZ3K
sGkAoIOVe1hbuv4kfAh3eLz1kbd28y5n
=1xhN
-----END PGP SIGNATURE-----
Merge tag 'batman-adv-fix-for-davem' of git://git.open-mesh.org/linux-merge
Included fixes:
- fix the behaviour of batman-adv in case of virtual interface MAC change event
- fix symmetric link check in neighbour selection
Signed-off-by: David S. Miller <davem@davemloft.net>
icmpv6_filter() should not modify its input, or else its caller
would need to recompute ipv6_hdr() if skb->head is reallocated.
Use skb_header_pointer() instead of pskb_may_pull() and
change the prototype to make clear both sk and skb are const.
Also, if icmpv6 header cannot be found, do not deliver the packet,
as we do in IPv4.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.11 (GNU/Linux)
iEYEABECAAYFAlBhIKEACgkQGkmNcg7/o7gfxwCffq7V/C3M6g8+P1TzMCJt1VsY
4JMAoI4muIBvFTSjnVc1+4c/DSBOo9iC
=MPUB
-----END PGP SIGNATURE-----
Merge tag 'sh-for-linus' of git://github.com/pmundt/linux-sh
Pull SuperH fix from Paul Mundt:
"One last minute regression fix.."
* tag 'sh-for-linus' of git://github.com/pmundt/linux-sh:
sh: pfc: Fix up GPIO mux type reconfig case.
Merge misc fixes from Andrew Morton:
"One maintainer change and three bugfixes"
* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (4 commits)
c/r: prctl: fix build error for no-MMU case
lib/flex_proportions.c: fix corruption of denominator in flexible proportions
checksyscalls: fix "here document" handling
pwm-backlight: take over maintenance
Commit 1ad75b9e16 ("c/r: prctl: add minimal address test to
PR_SET_MM") added some address checking to prctl_set_mm() used by
checkpoint-restore. This causes a build error for no-MMU systems:
kernel/sys.c: In function 'prctl_set_mm':
kernel/sys.c:1868:34: error: 'mmap_min_addr' undeclared (first use in this function)
The test for mmap_min_addr doesn't make a lot of sense for no-MMU code
as noted in commit 6e14154676 ("NOMMU: Optimise away the
{dac_,}mmap_min_addr tests").
This patch defines mmap_min_addr as 0UL in the no-MMU case so that the
compiler will optimize away tests for "addr < mmap_min_addr".
Signed-off-by: Mark Salter <msalter@redhat.com>
Reviewed-by: Cyrill Gorcunov <gorcunov@openvz.org>
Cc: <stable@vger.kernel.org> [3.6.x]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
When racing with CPU hotplug, percpu_counter_sum() can return negative
values for the number of observed events.
This confuses fprop_new_period(), which uses unsigned type and as a
result number of events is set to big *positive* number. From that
moment on, things go pear shaped and can result e.g. in division by
zero as denominator is later truncated to 32-bits.
This bug causes a divide-by-zero oops in bdi_dirty_limit() in Borislav's
3.6.0-rc6 based kernel.
Fix the issue by using a signed type in fprop_new_period(). That makes
us bail out from the function without doing anything (mistakenly)
thinking there are no events to age. That makes aging somewhat
inaccurate but getting accurate data would be rather hard.
Signed-off-by: Jan Kara <jack@suse.cz>
Reported-by: Borislav Petkov <bp@amd64.org>
Reported-by: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>
Cc: Wu Fengguang <fengguang.wu@intel.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
"echo" doesn't read from stdin, therefore the checksyscalls script didn't
warn about not implemented system calls anymore since 29dc54c6
("checksyscalls: Use arch/x86/syscalls/syscall_32.tbl as source").
Use "cat" instead of "echo" which handles this correctly.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Michal Marek <mmarek@suse.cz>
Cc: H. Peter Anvin <hpa@linux.intel.com>
Cc: Cyrill Gorcunov <gorcunov@openvz.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Since the pwm-backlight driver is lacking a proper maintainer and is the
heaviest user of the PWM framework I'm taking over maintenance.
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
Acked-by: Arun Murthy <arun.murthy@stericsson.com>
Cc: Matthew Garrett <mjg@redhat.com>
Cc: Robert Morell <rmorell@nvidia.com>
Cc: Dilan Lee <dilee@nvidia.com>
Cc: Axel Lin <axel.lin@gmail.com>
Cc: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: Alexandre Courbot <acourbot@nvidia.com>
Acked-by: Sachin Kamat <sachin.kamat@linaro.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Sandy bridge EDAC is calculating the memory size with overflow.
Basically, the size field and the integer calculation is using 32 bits.
More bits are needed, when the DIMM memories have high density.
The net result is that memories are improperly reported there, when
high-density DIMMs are used:
EDAC DEBUG: in drivers/edac/sb_edac.c, line at 591: mc#0: channel 0, dimm 0, -16384 Mb (-4194304 pages) bank: 8, rank: 2, row: 0x10000, col: 0x800
EDAC DEBUG: in drivers/edac/sb_edac.c, line at 591: mc#0: channel 1, dimm 0, -16384 Mb (-4194304 pages) bank: 8, rank: 2, row: 0x10000, col: 0x800
As the number of pages value is handled at the EDAC core as unsigned
ints, the driver shows the 16 GB memories at sysfs interface as 16760832
MB! The fix is simple: calculate the number of pages as unsigned 64-bits
integer.
After the patch, the memory size (16 GB) is properly detected:
EDAC DEBUG: in drivers/edac/sb_edac.c, line at 592: mc#0: channel 0, dimm 0, 16384 Mb (4194304 pages) bank: 8, rank: 2, row: 0x10000, col: 0x800
EDAC DEBUG: in drivers/edac/sb_edac.c, line at 592: mc#0: channel 1, dimm 0, 16384 Mb (4194304 pages) bank: 8, rank: 2, row: 0x10000, col: 0x800
Cc: stable@kernel.org
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Some drivers need to switch pin states between GPIO and pin function at
runtime, which was inadvertently broken in the pinctrl driver for GPIOs
being bound to a specific direction.
This fixes up the request path to ensure that previously configured GPIOs
don't cause us to inadvertently error out with an unsupported mux on
reconfig, which in practice is primarily aimed at trapping pull-up/down
users that have yet to be implemented under the new API.
Fixes up regressions in the TPU PWM driver, amongst others.
Reported-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Tested-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
John W. Linville says:
====================
Please pull this last(?) batch of fixes intended for 3.6...
For the Bluetooth bits, Gustavo says this:
"Here goes probably my last update to 3.6. It includes the two patches
you were ok last week(from Andrzej Kaczmarek), those are critical
ones, and two other fixes one for a system crash and the other for
a missing lockdep annotation."
The referenced fixes from Andrzej prevent attempts to configure devices
that are powered-off.
Along with the Bluetooth fixes, there are a couple of 802.11 fixes.
Emmanuel Grumbach gives us an iwlwifi fix to prevent releasing an
interrupt twice. Luis R. Rodriguez provides a fix for a possible
circular lock dependency in the cfg80211 regulatory enforcement code.
All of these have been in linux-next for a few days. I hope they are
not too late to make the 3.6 release!
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Pull tile gxio ABI fix from Chris Metcalf:
"This fixes a last-minute change in the Tilera hypervisor ABI for TRIO
(PCI root complex) support. We've locked in this ABI going forward
and will make sure no further ABI changes like this occur."
* git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile:
tile: gxio iorpc numbering change for TRIO interface
and it can cause bootup crashes on certain AMD machines.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.12 (GNU/Linux)
iQEcBAABAgAGBQJQYGDkAAoJEFjIrFwIi8fJrR0H/2iRt3nH3KeG6S2l2UaSvJuH
BqtUSFFtMxKwAc9WC8gx9lc6y9HFig1SThzWuWJulNpF50QnBp38+OuMzEespoUN
JLJtIp/jlYFZL5w2K7soXq7e0elbWTainPWvz5qJE7RifcnclAOGGrf/0LEVf/FQ
xCjn9MLDq5WzbkwuA7TPMDb9RSD3ZJThMShj82kziwpTaniJCpl4YY0lVYUfknXo
t2NTV6Ze6mkzU5QvxSA2ZJt89vsFXQNpsvUK0WzZfLmzugXqnqQHstaVti64ovZc
e64PW61PIRhaZMCDuieclMXWbXFjkp4AsEQJLv3K/kojG20xJ/X08nmolnl64vw=
=t4AN
-----END PGP SIGNATURE-----
Merge tag 'stable/for-linus-3.6-rc7-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen
Pull a Xen fix from Konrad Rzeszutek Wilk:
"It is a bug-fix when we run the initial PV guest on a AMD K8 machine
and have CONFIG_AMD_NUMA enabled and detect the NUMA topology from the
Northbridge.
We end up in the situation where the initial domain gets too much
information and gets confused and crashes - the fix is to restrict the
domain to get the information - and we do it by just disabling NUMA on
the PV guest (the hypervisor is still able to do its proper NUMA
allocations of guests).
It is OK to disable the PV guest from accessing NUMA data as right now
we do not inject any NUMA node information to the PV guests. When we
do get to that point, then this patch will have to be reverted."
* Disable PV NUMA support as we do not do anything with it (yet) and it
can cause bootup crashes on certain AMD machines.
* tag 'stable/for-linus-3.6-rc7-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen:
xen/boot: Disable NUMA for PV guests.
Pull two ceph fixes from Sage Weil:
"The first fixes a leak in the rbd setup error path, and the second
fixes a more serious problem with mismatched kmap/kunmap that surfaced
after the recent refactoring work."
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client:
libceph: only kunmap kmapped pages
rbd: drop dev reference on error in rbd_open()
Its possible to use RAW sockets to get a crash in
tcp_set_keepalive() / sk_reset_timer()
Fix is to make sure socket is a SOCK_STREAM one.
Reported-by: Dave Jones <davej@redhat.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
For GPIOs of gpio-lpc32xx, gpio_direction_output() ignores the value argument
(initial value of output). This patch fixes this by setting the level
accordingly.
Cc: stable@kernel.org
Signed-off-by: Roland Stigge <stigge@antcom.de>
Acked-by: Alexandre Pereira da Silva <aletes.xgr@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The license header was missing in micrel_phy.h . This patch adds
one.
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: David J. Choi <david.choi@micrel.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
There is no such part as KS8001, KS8041 or KS8051. There are only
KSZ8001, KSZ8041 and KSZ8051. Rename these parts as such to match
the Micrel naming.
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: David J. Choi <david.choi@micrel.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
Cc: Linux ARM kernel <linux-arm-kernel@lists.infradead.org>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Cc: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
The KSZ8021 PHY was previously caught by KS8051, which is not correct.
This PHY needs additional setup if it is strapped for address 0. In such
case an reserved bit must be written in the 0x16, "Operation Mode Strap
Override" register. According to the KS8051 datasheet, that bit means
"PHY Address 0 in non-broadcast" and it indeed behaves as such on KSZ8021.
The issue where the ethernet controller (Freescale FEC) did not communicate
with network is fixed by writing this bit as 1.
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: David J. Choi <david.choi@micrel.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
Signed-off-by: David S. Miller <davem@davemloft.net>