Greg Kroah-Hartman [Fri, 4 May 2012 19:09:39 +0000 (12:09 -0700)]
hfsplus: Fix potential buffer overflows
Commit
ec81aecb2966 ("hfs: fix a potential buffer overflow") fixed a few
potential buffer overflows in the hfs filesystem. But as Timo Warns
pointed out, these changes also need to be made on the hfsplus
filesystem as well.
Reported-by: Timo Warns <warns@pre-sense.de>
Acked-by: WANG Cong <amwang@redhat.com>
Cc: Alexey Khoroshilov <khoroshilov@ispras.ru>
Cc: Miklos Szeredi <mszeredi@suse.cz>
Cc: Sage Weil <sage@newdream.net>
Cc: Eugene Teo <eteo@redhat.com>
Cc: Roman Zippel <zippel@linux-m68k.org>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Dave Anderson <anderson@redhat.com>
Cc: stable <stable@vger.kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Fri, 4 May 2012 22:35:09 +0000 (15:35 -0700)]
Merge branch 'timers-urgent-for-linus' of git://git./linux/kernel/git/tip/tip
Pull timer fix from Thomas Gleixner.
* 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
rtc: Fix possible null pointer dereference in rtc-mpc5121.c
Linus Torvalds [Fri, 4 May 2012 22:34:21 +0000 (15:34 -0700)]
Merge git://git.samba.org/sfrench/cifs-2.6
Pull CIFS fixes from Steve French.
* git://git.samba.org/sfrench/cifs-2.6:
fs/cifs: fix parsing of dfs referrals
cifs: make sure we ignore the credentials= and cred= options
[CIFS] Update cifs version to 1.78
cifs - check S_AUTOMOUNT in revalidate
cifs: add missing initialization of server->req_lock
cifs: don't cap ra_pages at the same level as default_backing_dev_info
CIFS: Fix indentation in cifs_show_options
Dave Jones [Fri, 4 May 2012 16:04:17 +0000 (12:04 -0400)]
CPU frequency drivers MAINTAINERS update
Remove myself as cpufreq maintainer.
x86 driver changes can go through the regular x86/ACPI trees.
ARM driver changes through the ARM trees.
cpufreq core changes are rare these days, and can just go to lkml/direct.
Signed-off-by: Dave Jones <davej@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Fri, 4 May 2012 22:13:54 +0000 (15:13 -0700)]
seqlock: add 'raw_seqcount_begin()' function
The normal read_seqcount_begin() function will wait for any current
writers to exit their critical region by looping until the sequence
count is even.
That "wait for sequence count to stabilize" is the right thing to do if
the read-locker will just retry the whole operation on contention: no
point in doing a potentially expensive reader sequence if we know at the
beginning that we'll just end up re-doing it all.
HOWEVER. Some users don't actually retry the operation, but instead
will abort and do the operation with proper locking. So the sequence
count case may be the optimistic quick case, but in the presense of
writers you may want to do full locking in order to guarantee forward
progress. The prime example of this would be the RCU name lookup.
And in that case, you may well be better off without the "retry early",
and are in a rush to instead get to the failure handling. Thus this
"raw" interface that just returns the sequence number without testing it
- it just forces the low bit to zero so that read_seqcount_retry() will
always fail such a "active concurrent writer" scenario.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Fri, 4 May 2012 21:46:02 +0000 (14:46 -0700)]
Fix __read_seqcount_begin() to use ACCESS_ONCE for sequence value read
We really need to use a ACCESS_ONCE() on the sequence value read in
__read_seqcount_begin(), because otherwise the compiler might end up
reloading the value in between the test and the return of it. As a
result, it might end up returning an odd value (which means that a write
is in progress).
If the reader is then fast enough that that odd value is still the
current one when the read_seqcount_retry() is done, we might end up with
a "successful" read sequence, even despite the concurrent write being
active.
In practice this probably never really happens - there just isn't
anything else going on around the read of the sequence count, and the
common case is that we end up having a read barrier immediately
afterwards.
So the code sequence in which gcc might decide to reaload from memory is
small, and there's no reason to believe it would ever actually do the
reload. But if the compiler ever were to decide to do so, it would be
incredibly annoying to debug. Let's just make sure.
Cc: stable@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Fri, 4 May 2012 14:57:13 +0000 (07:57 -0700)]
Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
Pull drm fixes from Dave Airlie:
"Some minor fixes from Intel and a radeon fix.
I have the nouveau fix for the i2c regression queued for next week,
its mostly a revert and seems to work on the system it was originally
introduced for thanks to some i2c core changes."
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
drm/radeon: clarify and extend wb setup on APUs and NI+ asics
drm/i915: enable dip before writing data on gen4
fixing dmi match for hp t5745 and hp st5747 thin client
drm/i915: Only enable IPS polling for gen5
drm/i915: Do not read non-existent DPLL registers on PCH hardware
Linus Torvalds [Fri, 4 May 2012 14:56:22 +0000 (07:56 -0700)]
Merge tag 'md-3.4-fixes' of git://neil.brown.name/md
Pull one small fix for md/bitmaps from NeilBrown:
"This fixes a regression that was introduced in the merge window."
* tag 'md-3.4-fixes' of git://neil.brown.name/md:
md/bitmap: fix calculation of 'chunks' - missing shift.
Linus Torvalds [Fri, 4 May 2012 14:50:50 +0000 (07:50 -0700)]
Merge branch 'fix-unmapped-word-at-a-time'
Jana Saout confirmed that this fixes the page faults he saw.
His problem was triggered by ocfs2 and autofs symlink lookups, where the
symlink allocation was at the end of a page. But the deeper reason
seems to be the use of Xen-PV, which is what then causes him to have all
these unmapped pages, which is what then makes it a problem when the
unaligned word-at-a-time code fetches data past the end of a page.
* fix-unmapped-word-at-a-time:
vfs: make word-at-a-time accesses handle a non-existing page
Alex Deucher [Thu, 3 May 2012 21:06:28 +0000 (17:06 -0400)]
drm/radeon: clarify and extend wb setup on APUs and NI+ asics
Use family rather than DCE check for clarity, also always use
wb on APUs, there will never be AGP variants.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
NeilBrown [Fri, 4 May 2012 07:03:18 +0000 (17:03 +1000)]
md/bitmap: fix calculation of 'chunks' - missing shift.
commit
61a0d80c "md/bitmap: discard CHUNK_BLOCK_SHIFT macro"
replaced CHUNK_BLOCK_RATIO() by the same text that was
replacing CHUNK_BLOCK_SHIFT() - which is clearly wrong.
The result is that 'chunks' is often too small by 1,
which can sometimes result in a crash (not sure how).
So use the correct replacement, and get rid of CHUNK_BLOCK_RATIO
which is no longe used.
Reported-by: Karl Newman <siliconfiend@gmail.com>
Tested-by: Karl Newman <siliconfiend@gmail.com>
Signed-off-by: NeilBrown <neilb@suse.de>
Stefan Metzmacher [Thu, 3 May 2012 22:19:28 +0000 (00:19 +0200)]
fs/cifs: fix parsing of dfs referrals
The problem was that the first referral was parsed more than once
and so the caller tried the same referrals multiple times.
The problem was introduced partly by commit
066ce6899484d9026acd6ba3a8dbbedb33d7ae1b,
where 'ref += le16_to_cpu(ref->Size);' got lost,
but that was also wrong...
Cc: <stable@vger.kernel.org>
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Tested-by: Björn Jacke <bj@sernet.de>
Reviewed-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
Linus Torvalds [Fri, 4 May 2012 00:21:05 +0000 (17:21 -0700)]
Merge tag 'mfd-for-linus-3.4-rc6' of git://git./linux/kernel/git/sameo/mfd-2.6
Pull second set of MFD fixes from Samuel Ortiz:
"This time we only have a one liner fixing an omap-usb build error."
* tag 'mfd-for-linus-3.4-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6:
mfd: Fix build breakage in omap-usb-host.c
Linus Torvalds [Fri, 4 May 2012 00:19:48 +0000 (17:19 -0700)]
Merge branch 'efi-vars' from Matthew Garrett
* efi-vars:
efivars: Improve variable validation
Matthew Garrett [Thu, 3 May 2012 20:50:46 +0000 (16:50 -0400)]
efivars: Improve variable validation
Ben Hutchings pointed out that the validation in efivars was inadequate -
most obviously, an entry with size 0 would server as a DoS against the
kernel. Improve this based on his suggestions.
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Fri, 4 May 2012 00:16:52 +0000 (17:16 -0700)]
Merge tag 'tag/upstream-linus' of git://git./linux/kernel/git/jgarzik/libata-dev
Pull libata fixes from Jeff Garzik:
1) Fix regression that could cause a misdiagnosis, which in turn could
lead to an erroneous 3.0 Gbps -> 1.5 downshift, particularly when hotplug
and suspend/resume is involved.
2) Fix a regression that led to ata%d controller ids being numbered one
larger than in <= 3.4-rc3 (oh, the horror!). Controller ids should now be
as expected.
3) add some DT, PCI id's
4) ata/pata_arasan_cf: minor cpp fixing/cleaning
* tag 'tag/upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev:
ata: ahci_platform: Add synopsys ahci controller in DT's compatible list
ata/pata_arasan_cf: Move arasan_cf_pm_ops out of #ifdef, #endif macros
libata: init ata_print_id to 0
ahci: Detect Marvell 88SE9172 SATA controller
libata: skip old error history when counting probe trials
Linus Torvalds [Fri, 4 May 2012 00:15:47 +0000 (17:15 -0700)]
Merge branch 'i2c-embedded/for-current' of git://git.pengutronix.de/git/wsa/linux
Pull i2c embedded fixes from Wolfram Sang:
"Here are some typical i2c driver bugfixes for 3.4. Missed clock
handling, improper timeout fixes, hardware wrokarounds... All
patches have been in linux-next for a few days, too."
* 'i2c-embedded/for-current' of git://git.pengutronix.de/git/wsa/linux:
i2c: mxs: disable QUEUE when sending is done
i2c: mxs: handle spurious interrupt
i2c-eg20t: Modify MODULE_AUTHOR's email address
i2c-eg20t: change timeout value 50msec to 1000msec
i2c: tegra: Add delay before resetting the controller after NACK
i2c: pnx: Disable clk in suspend
Linus Torvalds [Fri, 4 May 2012 00:14:55 +0000 (17:14 -0700)]
Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
Pull drm fixes from Dave Airlie:
"Just some regression fixes from Ben along with a variable that gcc
failed to spot is uninitialised."
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
nouveau: initialise has_optimus variable.
drm/nv10/gpio: fix thinko in mask for gpio lines 2-9
nvc0/fb: shut up PMFB interrupt after the first occurrence
drm/nouveau/hdmi: use correct hdmi regs for nvaa/nvac
drm/nouveau/bios: fix regression on some nv4x board
Linus Torvalds [Fri, 4 May 2012 00:10:39 +0000 (17:10 -0700)]
Merge git://git./linux/kernel/git/davem/net
Pull networking fixes from David Miller:
1) Transfer padding was wrong for full-speed USB in ASIX driver, fix
from Ingo van Lil.
2) Propagate the negative packet offset fix into the PowerPC BPF JIT.
From Jan Seiffert.
3) dl2k driver's private ioctls were letting unprivileged tasks make
MII writes and other ugly bits like that. Fix from Jeff Mahoney.
4) Fix TX VLAN and RX packet drops in ucc_geth, from Joakim Tjernlund.
5) OOPS and network namespace fixes in IPVS from Hans Schillstrom and
Julian Anastasov.
6) Fix races and sleeping in locked context bugs in drop_monitor, from
Neil Horman.
7) Fix link status indication in smsc95xx driver, from Paolo Pisati.
8) Fix bridge netfilter OOPS, from Peter Huang.
9) L2TP sendmsg can return on error conditions with the socket lock
held, oops. Fix from Sasha Levin.
10) udp_diag should return meaningful values for socket memory usage,
from Shan Wei.
11) Eric Dumazet is so awesome he gets his own section:
Socket memory cgroup code (I never should have applied those
patches, grumble...) made erroneous changes to
sk_sockets_allocated_read_positive(). It was changed to
use percpu_counter_sum_positive (which requires BH disabling)
instead of percpu_counter_read_positive (which does not).
Revert back to avoid crashes and lockdep warnings.
Adjust the default tcp_adv_win_scale and tcp_rmem[2] values
to fix throughput regressions. This is necessary as a result
of our more precise skb->truesize tracking.
Fix SKB leak in netem packet scheduler.
12) New device IDs for various bluetooth devices, from Manoj Iyer,
AceLan Kao, and Steven Harms.
13) Fix command completion race in ipw2200, from Stanislav Yakovlev.
14) Fix rtlwifi oops on unload, from Larry Finger.
15) Fix hard_mtu when adjusting hard_header_len in smsc95xx driver.
From Stephane Fillod.
16) ehea driver registers it's IRQ before all the necessary state is
setup, resulting in crashes. Fix from Thadeu Lima de Souza
Cascardo.
17) Fix PHY connection failures in davinci_emac driver, from Anatolij
Gustschin.
18) Missing break; in switch statement in bluetooth's
hci_cmd_complete_evt(). Fix from Szymon Janc.
19) Fix queue programming in iwlwifi, from Johannes Berg.
20) Interrupt throttling defaults not being actually programmed into the
hardware, fix from Jeff Kirsher and Ying Cai.
21) TLAN driver SKB encoding in descriptor busted on 64-bit, fix from
Benjamin Poirier.
22) Fix blind status block RX producer pointer deref in TG3 driver, from
Matt Carlson.
23) Promisc and multicast are busted on ehea, fixes from Thadeu Lima de
Souza Cascardo.
24) Fix crashes in 6lowpan, from Alexander Smirnov.
25) tcp_complete_cwr() needs to be careful to not rewind the CWND to
ssthresh if ssthresh has the "infinite" value. Fix from Yuchung
Cheng.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (81 commits)
sungem: Fix WakeOnLan
tcp: change tcp_adv_win_scale and tcp_rmem[2]
net: l2tp: unlock socket lock before returning from l2tp_ip_sendmsg
drop_monitor: prevent init path from scheduling on the wrong cpu
usbnet: fix failure handling in usbnet_probe
usbnet: fix leak of transfer buffer of dev->interrupt
ucc_geth: Add 16 bytes to max TX frame for VLANs
net: ucc_geth, increase no. of HW RX descriptors
netem: fix possible skb leak
sky2: fix receive length error in mixed non-VLAN/VLAN traffic
sky2: propogate rx hash when packet is copied
net: fix two typos in skbuff.h
cxgb3: Don't call cxgb_vlan_mode until q locks are initialized
ixgbe: fix calling skb_put on nonlinear skb assertion bug
ixgbe: Fix a memory leak in IEEE DCB
igbvf: fix the bug when initializing the igbvf
smsc75xx: enable mac to detect speed/duplex from phy
smsc75xx: declare smsc75xx's MII as GMII capable
smsc75xx: fix phy interrupt acknowledge
smsc75xx: fix phy init reset loop
...
Linus Torvalds [Fri, 4 May 2012 00:08:58 +0000 (17:08 -0700)]
Merge tag 'hwmon-for-linus' of git://git./linux/kernel/git/groeck/linux-staging
Pull hwmon fixes from Guenter Roeck:
"Fix OOPS seen in coretemp driver if the CPU core ID is too large"
* tag 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
hwmon: (coretemp) Increase CPU core limit
hwmon: (coretemp) fix oops on cpu unplug
Linus Torvalds [Thu, 3 May 2012 17:16:43 +0000 (10:16 -0700)]
vfs: make word-at-a-time accesses handle a non-existing page
It turns out that there are more cases than CONFIG_DEBUG_PAGEALLOC that
can have holes in the kernel address space: it seems to happen easily
with Xen, and it looks like the AMD gart64 code will also punch holes
dynamically.
Actually hitting that case is still very unlikely, so just do the
access, and take an exception and fix it up for the very unlikely case
of it being a page-crosser with no next page.
And hey, this abstraction might even help other architectures that have
other issues with unaligned word accesses than the possible missing next
page. IOW, this could do the byte order magic too.
Peter Anvin fixed a thinko in the shifting for the exception case.
Reported-and-tested-by: Jana Saout <jana@saout.de>
Cc: Peter Anvin <hpa@zytor.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Jeff Layton [Wed, 2 May 2012 18:02:40 +0000 (14:02 -0400)]
cifs: make sure we ignore the credentials= and cred= options
Older mount.cifs programs passed this on to the kernel after parsing
the file. Make sure the kernel ignores that option.
Should fix:
https://bugzilla.kernel.org/show_bug.cgi?id=43195
Cc: Sachin Prabhu <sprabhu@redhat.com>
Reported-by: Ronald <ronald645@gmail.com>
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
Steve French [Wed, 2 May 2012 16:58:19 +0000 (11:58 -0500)]
[CIFS] Update cifs version to 1.78
Signed-off-by: Steve French <sfrench@us.ibm.com>
Ian Kent [Wed, 2 May 2012 11:19:09 +0000 (07:19 -0400)]
cifs - check S_AUTOMOUNT in revalidate
When revalidating a dentry, if the inode wasn't known to be a dfs
entry when the dentry was instantiated, such as when created via
->readdir(), the DCACHE_NEED_AUTOMOUNT flag needs to be set on the
dentry in ->d_revalidate().
The false return from cifs_d_revalidate(), due to the inode now
being marked with the S_AUTOMOUNT flag, might not invalidate the
dentry if there is a concurrent unlazy path walk. This is because
the dentry reference count will be at least 2 in this case causing
d_invalidate() to return EBUSY. So the asumption that the dentry
will be discarded then correctly instantiated via ->lookup() might
not hold.
Signed-off-by: Ian Kent <raven@themaw.net>
Reviewed-by: Jeff Layton <jlayton@redhat.com>
Cc: Steve French <smfrench@gmail.com>
Cc: linux-cifs@vger.kernel.org
Signed-off-by: Steve French <sfrench@us.ibm.com>
Viresh Kumar [Sat, 21 Apr 2012 12:10:12 +0000 (17:40 +0530)]
ata: ahci_platform: Add synopsys ahci controller in DT's compatible list
SPEAr13xx series of SoCs contain Synopsys AHCI SATA Controller which shares
ahci_platform driver with other controller versions.
This patch updates DT compatible list for ahci_platform. It also updates and
renames binding documentation to more generic name.
Signed-off-by: Viresh Kumar <viresh.kumar@st.com>
Cc: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Viresh Kumar [Sat, 21 Apr 2012 12:10:09 +0000 (17:40 +0530)]
ata/pata_arasan_cf: Move arasan_cf_pm_ops out of #ifdef, #endif macros
#ifdef, #endif is not required in definition/usage of arasan_cf_pm_ops. So, move
this definition and its usage outside of them.
Signed-off-by: Viresh Kumar <viresh.kumar@st.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Tero Roponen [Sun, 22 Apr 2012 08:38:00 +0000 (11:38 +0300)]
libata: init ata_print_id to 0
When comparing the dmesg between 3.4-rc3 and 3.4-rc4 I found the
following differences:
-ata1: SATA max UDMA/133 abar m2048@0xf9fff000 port 0xf9fff100 irq 47
-ata2: SATA max UDMA/133 abar m2048@0xf9fff000 port 0xf9fff180 irq 47
-ata3: DUMMY
+ata2: SATA max UDMA/133 abar m2048@0xf9fff000 port 0xf9fff100 irq 47
+ata3: SATA max UDMA/133 abar m2048@0xf9fff000 port 0xf9fff180 irq 47
ata4: DUMMY
ata5: DUMMY
-ata6: SATA max UDMA/133 abar m2048@0xf9fff000 port 0xf9fff380 irq 47
+ata6: DUMMY
+ata7: SATA max UDMA/133 abar m2048@0xf9fff000 port 0xf9fff380 irq 47
The change of numbering comes from commit
85d6725b7c0d7e3f ("libata:
make ata_print_id atomic") that changed lines like
ap->print_id = ata_print_id++;
to
ap->print_id = atomic_inc_return(&ata_print_id);
As the latter behaves like ++ata_print_id, we must initialize
it to zero to start the numbering from one.
Signed-off-by: Tero Roponen <tero.roponen@gmail.com>
Acked-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Matt Johnson [Fri, 27 Apr 2012 06:42:30 +0000 (01:42 -0500)]
ahci: Detect Marvell 88SE9172 SATA controller
The Marvell 88SE9172 SATA controller (PCI ID 1b4b 917a) already worked
once it was detected, but was missing an ahci_pci_tbl entry.
Boot tested on a Gigabyte Z68X-UD3H-B3 motherboard.
Signed-off-by: Matt Johnson <johnso87@illinois.edu>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Lin Ming [Thu, 3 May 2012 14:15:07 +0000 (22:15 +0800)]
libata: skip old error history when counting probe trials
Commit d902747("[libata] Add ATA transport class") introduced
ATA_EFLAG_OLD_ER to mark entries in the error ring as cleared.
But ata_count_probe_trials_cb() didn't check this flag and it still
counts the old error history. So wrong probe trials count is returned
and it causes problem, for example, SATA link speed is slowed down from
3.0Gbps to 1.5Gbps.
Fix it by checking ATA_EFLAG_OLD_ER in ata_count_probe_trials_cb().
Cc: stable <stable@vger.kernel.org> # 2.6.37+
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Dave Airlie [Thu, 3 May 2012 16:27:02 +0000 (17:27 +0100)]
Merge branch 'drm-intel-fixes' of git://people.freedesktop.org/~danvet/drm-intel into drm-fixes
* 'drm-intel-fixes' of git://people.freedesktop.org/~danvet/drm-intel:
drm/i915: enable dip before writing data on gen4
fixing dmi match for hp t5745 and hp st5747 thin client
drm/i915: Only enable IPS polling for gen5
drm/i915: Do not read non-existent DPLL registers on PCH hardware
Paulo Zanoni [Thu, 3 May 2012 01:55:43 +0000 (22:55 -0300)]
drm/i915: enable dip before writing data on gen4
While testing with the intel_infoframes tool on gen4, I see that when
video DIP is disabled, what we write to the DATA memory is not exactly
what we read back later.
This regression has been introduce in
commit
64a8fc0145a1d0fdc25fc9367c2e6c621955fb3b
Author: Jesse Barnes <jbarnes@virtuousgeek.org>
Date: Thu Sep 22 11:16:00 2011 +0530
drm/i915: fix ILK+ infoframe support
That commit was setting VIDEO_DIP_CTL to 0 when initializing, which
caused the problem.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=43947
Cc: stable@kernel.org
Tested-by: Yang Guang <guang.a.yang@intel.com>
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Eugeni Dodonov <eugeni.dodonov@intel.com>
[danvet: Pimped commit message by using the usual commit citation
layout.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Dave Airlie [Wed, 2 May 2012 19:26:24 +0000 (20:26 +0100)]
nouveau: initialise has_optimus variable.
We should initialise this to 0 really to avoid getting false positives.
Cc: stable@vger.kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
Gerard Lledo [Sat, 28 Apr 2012 08:52:37 +0000 (08:52 +0000)]
sungem: Fix WakeOnLan
WakeOnLan was broken in this driver because gp->asleep_wol is a 1-bit
bitfield and it was being assigned WAKE_MAGIC, which is (1 << 5).
gp->asleep_wol remains 0 and the machine never wakes up. Fixed by casting
gp->wake_on_lan to bool. Tested on an iBook G4.
Signed-off-by: Gerard Lledo <gerard.lledo@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Eric Dumazet [Wed, 2 May 2012 02:28:41 +0000 (02:28 +0000)]
tcp: change tcp_adv_win_scale and tcp_rmem[2]
tcp_adv_win_scale default value is 2, meaning we expect a good citizen
skb to have skb->len / skb->truesize ratio of 75% (3/4)
In 2.6 kernels we (mis)accounted for typical MSS=1460 frame :
1536 + 64 + 256 = 1856 'estimated truesize', and 1856 * 3/4 = 1392.
So these skbs were considered as not bloated.
With recent truesize fixes, a typical MSS=1460 frame truesize is now the
more precise :
2048 + 256 = 2304. But 2304 * 3/4 = 1728.
So these skb are not good citizen anymore, because 1460 < 1728
(GRO can escape this problem because it build skbs with a too low
truesize.)
This also means tcp advertises a too optimistic window for a given
allocated rcvspace : When receiving frames, sk_rmem_alloc can hit
sk_rcvbuf limit and we call tcp_prune_queue()/tcp_collapse() too often,
especially when application is slow to drain its receive queue or in
case of losses (netperf is fast, scp is slow). This is a major latency
source.
We should adjust the len/truesize ratio to 50% instead of 75%
This patch :
1) changes tcp_adv_win_scale default to 1 instead of 2
2) increase tcp_rmem[2] limit from 4MB to 6MB to take into account
better truesize tracking and to allow autotuning tcp receive window to
reach same value than before. Note that same amount of kernel memory is
consumed compared to 2.6 kernels.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Neal Cardwell <ncardwell@google.com>
Cc: Tom Herbert <therbert@google.com>
Cc: Yuchung Cheng <ycheng@google.com>
Acked-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Sasha Levin [Wed, 2 May 2012 03:58:43 +0000 (03:58 +0000)]
net: l2tp: unlock socket lock before returning from l2tp_ip_sendmsg
l2tp_ip_sendmsg could return without releasing socket lock, making it all the
way to userspace, and generating the following warning:
[ 130.891594] ================================================
[ 130.894569] [ BUG: lock held when returning to user space! ]
[ 130.897257] 3.4.0-rc5-next-
20120501-sasha #104 Tainted: G W
[ 130.900336] ------------------------------------------------
[ 130.902996] trinity/8384 is leaving the kernel with locks still held!
[ 130.906106] 1 lock held by trinity/8384:
[ 130.907924] #0: (sk_lock-AF_INET){+.+.+.}, at: [<
ffffffff82b9503f>] l2tp_ip_sendmsg+0x2f/0x550
Introduced by commit 2f16270 ("l2tp: Fix locking in l2tp_ip.c").
Signed-off-by: Sasha Levin <levinsasha928@gmail.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Neil Horman [Tue, 1 May 2012 08:18:02 +0000 (08:18 +0000)]
drop_monitor: prevent init path from scheduling on the wrong cpu
I just noticed after some recent updates, that the init path for the drop
monitor protocol has a minor error. drop monitor maintains a per cpu structure,
that gets initalized from a single cpu. Normally this is fine, as the protocol
isn't in use yet, but I recently made a change that causes a failed skb
allocation to reschedule itself . Given the current code, the implication is
that this workqueue reschedule will take place on the wrong cpu. If drop
monitor is used early during the boot process, its possible that two cpus will
access a single per-cpu structure in parallel, possibly leading to data
corruption.
This patch fixes the situation, by storing the cpu number that a given instance
of this per-cpu data should be accessed from. In the case of a need for a
reschedule, the cpu stored in the struct is assigned the rescheule, rather than
the currently executing cpu
Tested successfully by myself.
Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
CC: David Miller <davem@davemloft.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
tom.leiming@gmail.com [Sun, 29 Apr 2012 22:51:03 +0000 (22:51 +0000)]
usbnet: fix failure handling in usbnet_probe
If register_netdev returns failure, the dev->interrupt and
its transfer buffer should be released, so just fix it.
Signed-off-by: Ming Lei <tom.leiming@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
tom.leiming@gmail.com [Sun, 29 Apr 2012 22:51:02 +0000 (22:51 +0000)]
usbnet: fix leak of transfer buffer of dev->interrupt
The transfer buffer of dev->interrupt is allocated in .probe path,
but not freed in .disconnet path, so mark the interrupt URB as
URB_FREE_BUFFER to free the buffer when the URB is destroyed.
Signed-off-by: Ming Lei <tom.leiming@gmail.com>
Acked-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Joakim Tjernlund [Sun, 29 Apr 2012 22:36:55 +0000 (22:36 +0000)]
ucc_geth: Add 16 bytes to max TX frame for VLANs
Creating a VLAN interface on top of ucc_geth adds 4 bytes
to the frame and the HW controller is not prepared to
TX a frame bigger than 1518 bytes which is 4 bytes too
small for a full VLAN frame. Add 16 bytes which will handle
the a simple VLAN and leaves 12 bytes for future expansion.
Signed-off-by: Joakim Tjernlund <Joakim.Tjernlund@transmode.se>
Signed-off-by: David S. Miller <davem@davemloft.net>
Joakim Tjernlund [Sun, 29 Apr 2012 22:36:54 +0000 (22:36 +0000)]
net: ucc_geth, increase no. of HW RX descriptors
In a busy network we see ucc_geth is dropping RX pkgs every now
and then. Increase the RX queues HW descriptors from
16 to 32 to deal with this.
Signed-off-by: Joakim Tjernlund <Joakim.Tjernlund@transmode.se>
Signed-off-by: David S. Miller <davem@davemloft.net>
Linus Torvalds [Wed, 2 May 2012 20:48:33 +0000 (13:48 -0700)]
Merge tag 'usb-3.4-rc6' of git://git./linux/kernel/git/gregkh/usb
Pull USB patches from Greg Kroah-Hartman:
"Here are two EHCI Tegra driver patches for your tree.
The first is a bit big, but the majority is just moving code around.
It is needed due to the other EHCI core changes that went in way back
in 3.4-rc1, so this driver will now properly handle suspend/resume, as
it was broken. The other one is a minor bugfix that resolves an
warning that people have been seeing."
* tag 'usb-3.4-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
USB: ehci-tegra: remove redundant gpio_set_value
EHCI: update PM methods in ehci-tegra.c
Linus Torvalds [Wed, 2 May 2012 20:47:49 +0000 (13:47 -0700)]
Merge tag 'tty-3.4-rc6' of git://git./linux/kernel/git/gregkh/tty
Pull a TTY fix from Greg Kroah-Hartman:
"This is a deadlock bugfix that was easy to hit, and that the vt layer
lock rework got wrong, so it reverts the logic back to the way it was
in 3.3 and earlier kernels to prevent problems."
* tag 'tty-3.4-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
vt: Fix deadlock on scroll-lock
Marc Gariepy [Tue, 1 May 2012 17:37:57 +0000 (13:37 -0400)]
fixing dmi match for hp t5745 and hp st5747 thin client
Match the correct information which is DMI_PRODUCT_NAME instead of DMI_BOARD_NAME
See dmidecode information on launchpad for both thin client:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/911920
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/911916
Signed-off-by: Marc Gariepy <mgariepy@ubuntu.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Linus Torvalds [Wed, 2 May 2012 15:17:57 +0000 (08:17 -0700)]
Merge tag 'nfs-for-3.4-4' of git://git.linux-nfs.org/projects/trondmy/linux-nfs
Pull NFS client bugfixes from Trond Myklebust:
- Fixes for the NFSv4 security negotiation
- Use the correct hostname when mounting from a private namespace
- NFS net namespace bugfixes for the pipefs filesystem
- NFSv4 GETACL bugfixes
- IPv6 bugfix for NFSv4 referrals
* tag 'nfs-for-3.4-4' of git://git.linux-nfs.org/projects/trondmy/linux-nfs:
NFSv4.1: Use the correct hostname in the client identifier string
SUNRPC: RPC client must use the current utsname hostname string
NFS: get module in idmap PipeFS notifier callback
NFS: Remove unused function nfs_lookup_with_sec()
NFS: Honor the authflavor set in the clone mount data
NFS: Fix following referral mount points with different security
NFS: Do secinfo as part of lookup
NFS: Handle exceptions coming out of nfs4_proc_fs_locations()
NFS: Fix SECINFO_NO_NAME
SUNRPC: traverse clients tree on PipeFS event
SUNRPC: set per-net PipeFS superblock before notification
SUNRPC: skip clients with program without PipeFS entries
SUNRPC: skip dead but not buried clients on PipeFS events
Avoid beyond bounds copy while caching ACL
Avoid reading past buffer when calling GETACL
fix page number calculation bug for block layout decode buffer
NFSv4.1 fix page number calculation bug for filelayout decode buffers
pnfs-obj: Remove unused variable from objlayout_get_deviceinfo()
nfs4: fix referrals on mounts that use IPv6 addrs
Chris Wilson [Mon, 30 Apr 2012 18:35:02 +0000 (19:35 +0100)]
drm/i915: Only enable IPS polling for gen5
On SandyBridge IPS was entirely implemented in hardware and not reliant
on the driver monitoring power consumption and feeding back desired run
states, so the hardware is able to adapt quicker and more flexibly. Which
is a huge relief for us as we no longer have to carry empirically
derived magic algorithms.
Yet despite the advance in technology, the driver was still doing its
IPS polling on all machines. Restrict it to the only supported hardware,
Clarkdale/Arrandale.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Tested-by: Andrey Rahmatullin <wrar@wrar.name>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=49025
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Chris Wilson [Wed, 2 May 2012 11:07:06 +0000 (12:07 +0100)]
drm/i915: Do not read non-existent DPLL registers on PCH hardware
We only execute intel_decrease_pllclock for pre-PCH hardware, typically
gen4 mobiles. However, in the variable declaration we did read from the
non-PCH DPLL register, quite naughty and detected by SandyBridge.
Reported-and-tested-by: Andrey Rahmatullin <wrar@wrar.name>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=49025
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Jeff Layton [Tue, 1 May 2012 21:41:16 +0000 (17:41 -0400)]
cifs: add missing initialization of server->req_lock
Cc: Pavel Shilovsky <piastryyy@gmail.com>
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
Jeff Layton [Tue, 1 May 2012 21:41:49 +0000 (17:41 -0400)]
cifs: don't cap ra_pages at the same level as default_backing_dev_info
While testing, I've found that even when we are able to negotiate a
much larger rsize with the server, on-the-wire reads often end up being
capped at 128k because of ra_pages being capped at that level.
Lifting this restriction gave almost a twofold increase in sequential
read performance on my craptactular KVM test rig with a 1M rsize.
I think this is safe since the actual ra_pages that the VM requests
is run through max_sane_readahead() prior to submitting the I/O. Under
memory pressure we should end up with large readahead requests being
suppressed anyway.
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
Sachin Prabhu [Wed, 25 Apr 2012 11:10:14 +0000 (12:10 +0100)]
CIFS: Fix indentation in cifs_show_options
Trivial patch which fixes a misplaced tab in cifs_show_options().
Signed-off-by: Sachin Prabhu <sprabhu@redhat.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
Linus Torvalds [Wed, 2 May 2012 02:43:34 +0000 (19:43 -0700)]
Merge tag 'ktest-for-v3.4-rc5' of git://git./linux/kernel/git/rostedt/linux-ktest
Pull two bug fixes in ktest from Steven Rostedt.
* tag 'ktest-for-v3.4-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-ktest:
ktest: Fix reboot on success stopping all reboots
ktest.pl: Fix combined usage of BISECT_REVERSE and BISECT_SKIP
Linus Torvalds [Wed, 2 May 2012 00:24:05 +0000 (17:24 -0700)]
Merge branch 'upstream' of git://git.linux-mips.org/ralf/upstream-linus
Pull MIPS fixes from Ralf Baechle:
"misc fixes some of which are also applicable to 3.3 and removal of an
unused function. This has been sitting in -next for ages with no
complaints. Also there are no known regressions due to these patches"
* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus:
MIPS: Remove get_current_pgd().
MIPS: ath79: fix AR933X WMAC reset code
MIPS: JZ4740: Fix the JZ4740_IRQ_DMA macro
MIPS: Use set_current_blocked() and block_sigmask()
John W. Linville [Tue, 1 May 2012 18:14:05 +0000 (14:14 -0400)]
Merge branch 'master' of git://git./linux/kernel/git/linville/wireless into for-davem
Stephen Warren [Mon, 30 Apr 2012 23:24:10 +0000 (17:24 -0600)]
USB: ehci-tegra: remove redundant gpio_set_value
The immediately preceding gpio_direction_output() already set the value,
so there's no need to repeat it. This also prevents gpio_set_value() from
WARNing when the GPIO is sleepable (e.g. is on an I2C expander); the set
direction API is always sleepable, but plain set_value isn't.
Cc: <stable@vger.kernel.org> # v3.3
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Alan Stern [Tue, 1 May 2012 15:28:49 +0000 (11:28 -0400)]
EHCI: update PM methods in ehci-tegra.c
This patch (as1547) rearranges the Power Management parts of the
ehci-tegra driver to match the conventions used in other EHCI platform
drivers. In particular, the controller should not be powered down by
the root hub's suspend routine; the controller's power level should be
managed by the controller's own PM methods.
The end result of the patch is that the standard ehci_bus_suspend()
and ehci_bus_resume() methods can be used instead of special-purpose
routines. The driver now uses the standard dev_pm_ops methods instead
of legacy power management. Since there is no supported wakeup
mechanism for the controller, runtime suspend is forbidden by default
(this can be overridden via sysfs, if desired).
These adjustments are needed in order to make ehci-tegra compatible
with recent changes to the USB core. The core now checks the root
hub's status following bus suspend; if the controller is automatically
powered down during bus suspend then the check will fail and the root
hub will be resumed immediately. Doing the controller power-down in a
separate method avoids this problem.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Acked-by: Stephen Warren <swarren@wwwdotorg.org>
Tested-by: Stephen Warren <swarren@wwwdotorg.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Alan Cox [Tue, 1 May 2012 15:12:19 +0000 (16:12 +0100)]
vt: Fix deadlock on scroll-lock
Fixing the locking accidentally replaced a race in the scroll
lock handling with a deadlock. Turn it back into a race for
now.
The basic problem is that there are two paths into the tty
stop/start helpers. One via the tty layer ^S/^Q handling
where we need to take the kbd_event_lock and one via the
special keyboard handler for fn_hold where we already hold
it. Probably we need to split out into a separate LED lock
but for now just go back to the race as it's a bit close
to release.
Reported-by: Clemens Ladisch <clemens@ladisch.de>
Cc: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Eric Dumazet [Sun, 29 Apr 2012 09:08:22 +0000 (09:08 +0000)]
netem: fix possible skb leak
skb_checksum_help(skb) can return an error, we must free skb in this
case. qdisc_drop(skb, sch) can also be feeded with a NULL skb (if
skb_unshare() failed), so lets use this generic helper.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
stephen hemminger [Mon, 30 Apr 2012 06:47:37 +0000 (06:47 +0000)]
sky2: fix receive length error in mixed non-VLAN/VLAN traffic
Bug: The VLAN bit of the MAC RX Status Word is unreliable in several older
supported chips. Sometimes the VLAN bit is not set for valid VLAN packets
and also sometimes the VLAN bit is set for non-VLAN packets that came after
a VLAN packet. This results in a receive length error when VLAN hardware
tagging is enabled.
Fix: Variation on original fix proposed by Mirko.
The VLAN information is decoded in the status loop, and can be
applied to the received SKB there. This eliminates the need for the
separate tag field in the interface data structure. The tag has to
be copied and cleared if packet is copied. This version checked out
with vlan and normal traffic.
Note: vlan_tx_tag_present should be renamed vlan_tag_present, but that
is outside scope of this.
Reported-by: Mirko Lindner <mlindner@marvell.com>
Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
stephen hemminger [Mon, 30 Apr 2012 05:49:45 +0000 (05:49 +0000)]
sky2: propogate rx hash when packet is copied
When a small packet is received, the driver copies it to a new skb to allow
reusing the full size Rx buffer. The copy was propogating the checksum offload
but not the receive hash information. The bug is impact was mostly harmless
and therefore not observed until reviewing this area of code.
Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Guenter Roeck [Tue, 1 May 2012 15:15:42 +0000 (08:15 -0700)]
hwmon: (coretemp) Increase CPU core limit
CPU core ID is used to index the core_data[] array. The core ID is, however, not
sequential; 10-core CPUS can have a core ID as high as 25. Increase the limit to
32 to be able to deal with current CPUs.
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Cc: stable@vger.kernel.org # 3.0+
Acked-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Durgadoss R <durgadoss.r@intel.com>
Kirill A. Shutemov [Mon, 30 Apr 2012 13:18:01 +0000 (09:18 -0400)]
hwmon: (coretemp) fix oops on cpu unplug
coretemp tries to access core_data array beyond bounds on cpu unplug if
core id of the cpu if more than NUM_REAL_CORES-1.
BUG: unable to handle kernel NULL pointer dereference at
000000000000013c
IP: [<
ffffffffa00159af>] coretemp_cpu_callback+0x93/0x1ba [coretemp]
PGD
673e5a067 PUD
66e9b3067 PMD 0
Oops: 0000 [#1] SMP
CPU 79
Modules linked in: sunrpc cpufreq_ondemand acpi_cpufreq freq_table mperf bnep bluetooth rfkill ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6 ip6table_filter nf_conntrack_ipv4 nf_defrag_ipv4 ip6_tables xt_state nf_conntrack coretemp crc32c_intel asix tpm_tis pcspkr usbnet iTCO_wdt i2c_i801 microcode mii joydev tpm i2c_core iTCO_vendor_support tpm_bios i7core_edac igb ioatdma edac_core dca megaraid_sas [last unloaded: oprofile]
Pid: 3315, comm: set-cpus Tainted: G W 3.4.0-rc5+ #2 QCI QSSC-S4R/QSSC-S4R
RIP: 0010:[<
ffffffffa00159af>] [<
ffffffffa00159af>] coretemp_cpu_callback+0x93/0x1ba [coretemp]
RSP: 0018:
ffff880472fb3d48 EFLAGS:
00010246
RAX:
0000000000000124 RBX:
0000000000000034 RCX:
00000000ffffffff
RDX:
0000000000000000 RSI:
0000000000000046 RDI:
0000000000000246
RBP:
ffff880472fb3d88 R08:
ffff88077fcd36c0 R09:
0000000000000001
R10:
ffffffff8184bc48 R11:
0000000000000000 R12:
ffff880273095800
R13:
0000000000000013 R14:
ffff8802730a1810 R15:
0000000000000000
FS:
00007f694a20f720(0000) GS:
ffff88077fcc0000(0000) knlGS:
0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0:
000000008005003b
CR2:
000000000000013c CR3:
000000067209b000 CR4:
00000000000007e0
DR0:
0000000000000000 DR1:
0000000000000000 DR2:
0000000000000000
DR3:
0000000000000000 DR6:
00000000ffff0ff0 DR7:
0000000000000400
Process set-cpus (pid: 3315, threadinfo
ffff880472fb2000, task
ffff880471fa0000)
Stack:
ffff880277b4c308 0000000000000003 ffff880472fb3d88 0000000000000005
0000000000000034 00000000ffffffd1 ffffffff81cadc70 ffff880472fb3e14
ffff880472fb3dc8 ffffffff8161f48d ffff880471fa0000 0000000000000034
Call Trace:
[<
ffffffff8161f48d>] notifier_call_chain+0x4d/0x70
[<
ffffffff8107f1be>] __raw_notifier_call_chain+0xe/0x10
[<
ffffffff81059d30>] __cpu_notify+0x20/0x40
[<
ffffffff815fa251>] _cpu_down+0x81/0x270
[<
ffffffff815fa477>] cpu_down+0x37/0x50
[<
ffffffff815fd6a3>] store_online+0x63/0xc0
[<
ffffffff813c7078>] dev_attr_store+0x18/0x30
[<
ffffffff811f02cf>] sysfs_write_file+0xef/0x170
[<
ffffffff81180443>] vfs_write+0xb3/0x180
[<
ffffffff8118076a>] sys_write+0x4a/0x90
[<
ffffffff816236a9>] system_call_fastpath+0x16/0x1b
Code: 48 c7 c7 94 60 01 a0 44 0f b7 ac 10 ac 00 00 00 31 c0 e8 41 b7 5f e1 41 83 c5 02 49 63 c5 49 8b 44 c4 10 48 85 c0 74 56 45 31 ff <39> 58 18 75 4e eb 1f 49 63 d7 4c 89 f7 48 89 45 c8 48 6b d2 28
RIP [<
ffffffffa00159af>] coretemp_cpu_callback+0x93/0x1ba [coretemp]
RSP <
ffff880472fb3d48>
CR2:
000000000000013c
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: stable@vger.kernel.org # 3.0+
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Eric Dumazet [Mon, 30 Apr 2012 21:29:16 +0000 (21:29 +0000)]
net: fix two typos in skbuff.h
fix kernel doc typos in function names
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Steven Rostedt [Tue, 1 May 2012 12:20:12 +0000 (08:20 -0400)]
ktest: Fix reboot on success stopping all reboots
The change to let individual tests decide to reboot the machine on
success of the entire test also prevented errors from rebooting
when an error was detected.
The "no_reboot" variable was only cleared if the test had
reboot_on_success set. But the no_reboot variable also prevents the test
rebooting when an error was detected even when REBOOT_ON_ERROR was set.
Add a new "reboot_success" variable that is used to determine if the
test should reboot on success and not touch the no_reboot variable.
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Russ Dill [Tue, 24 Apr 2012 02:43:00 +0000 (19:43 -0700)]
ktest.pl: Fix combined usage of BISECT_REVERSE and BISECT_SKIP
When BISECT_REVERSE and BISECT_SKIP are used together with boot or test
testing, build failures are treated as boot or test failures and
'git bisect bad' is executed instead of 'git bisect skip'. This is because
the $ret value of -1 is treated as a build failure, but the $reverse_bisect
logic does not properly handle this.
Simple fix, only invert it if it is positive.
Link: http://lkml.kernel.org/r/1335235380-8509-1-git-send-email-Russ.Dill@ti.com
Signed-off-by: Russ Dill <Russ.Dill@ti.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Dave Airlie [Tue, 1 May 2012 11:25:06 +0000 (12:25 +0100)]
Merge branch 'drm-nouveau-fixes' of git://git.freedesktop.org/git/nouveau/linux-2.6 into drm-fixes
* 'drm-nouveau-fixes' of git://git.freedesktop.org/git/nouveau/linux-2.6:
drm/nv10/gpio: fix thinko in mask for gpio lines 2-9
nvc0/fb: shut up PMFB interrupt after the first occurrence
drm/nouveau/hdmi: use correct hdmi regs for nvaa/nvac
drm/nouveau/bios: fix regression on some nv4x board
Russ Dill [Sun, 22 Apr 2012 08:48:18 +0000 (01:48 -0700)]
mfd: Fix build breakage in omap-usb-host.c
'ARM: OMAP3: USB: Fix the EHCI ULPI PHY reset issue' removes the include for
linux/gpio.h from omap-usb-host.c. This include indirectly includes plat/cpu.h
which is required by omap-usb-host.c. Fix the build breakage by including
it directly.
Acked-by: Keshava Munegowda <keshava_mgowda@ti.com>
Acked-by: Kevin Hilman <khilman@ti.com>
Tested-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Russ Dill <Russ.Dill@ti.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Roland Dreier [Mon, 30 Apr 2012 07:15:47 +0000 (07:15 +0000)]
cxgb3: Don't call cxgb_vlan_mode until q locks are initialized
The driver calls cxgb_vlan_mode() from init_one(). This calls into
synchronize_rx(), which locks all the q locks, but the q locks are not
initialized until cxgb_up() -> setup_sge_qsets(). So move the call to
cxgb_vlan_mode() into cxgb_up(), after the call to setup_sge_qsets().
We also move the body of these functions up higher to avoid having to
a forward declaration.
This was found because of the lockdep warning:
INFO: trying to register non-static key.
the code is fine but needs lockdep annotation.
turning off the locking correctness validator.
Pid: 323, comm: work_for_cpu Not tainted 3.4.0-rc5 #28
Call Trace:
[<
ffffffff8106e767>] register_lock_class+0x108/0x2d0
[<
ffffffff8106ff42>] __lock_acquire+0xd3/0xd06
[<
ffffffff81070fd0>] lock_acquire+0xbf/0xfe
[<
ffffffff813862a6>] _raw_spin_lock_irq+0x36/0x45
[<
ffffffffa01e71aa>] cxgb_vlan_mode+0x96/0xcb [cxgb3]
[<
ffffffffa01f90eb>] init_one+0x8c4/0x980 [cxgb3]
[<
ffffffff811fcbf0>] local_pci_probe+0x3f/0x70
[<
ffffffff81042206>] do_work_for_cpu+0x10/0x22
[<
ffffffff810482de>] kthread+0xa1/0xa9
[<
ffffffff8138e234>] kernel_thread_helper+0x4/0x10
Contrary to what lockdep says, the code is not fine: we are locking an
uninitialized spinlock.
Signed-off-by: Roland Dreier <roland@purestorage.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Tue, 1 May 2012 02:04:20 +0000 (22:04 -0400)]
Merge branch 'master' of git://git./linux/kernel/git/jkirsher/net
Yi Zou [Fri, 20 Apr 2012 05:48:08 +0000 (05:48 +0000)]
ixgbe: fix calling skb_put on nonlinear skb assertion bug
With the support to bounce buffer added, the skb is coming as nonlinear in the
case of non-DDPed data frames for FCoE, which is mostly ok as the FCoE stack
would take care of that. However, for target mode, we have to set the FC CRC
and FC EOF field to allow the protocol stack to not drop the frame for the last
data frame of that sequence. So fix this by linearizing the skb first before
doing skb_put().
Signed-off-by: Yi Zou <yi.zou@intel.com>
Tested-by: Marcus Dennis <marcusx.e.dennis@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Alexander Duyck [Sat, 17 Mar 2012 02:39:16 +0000 (02:39 +0000)]
ixgbe: Fix a memory leak in IEEE DCB
The driver was freeing memory in shutdown instead of remove. As a result
we were leaking memory if IEEE DCB was enabled and we loaded/unloaded the
driver. This change moves the freeing of the memory into the remove
routine where it belongs.
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Acked-by: John Fastabend <john.r.fastabend@intel.com>
Tested-by: Ross Brattain <ross.b.brattain@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Samuel Liao [Fri, 27 Apr 2012 17:09:27 +0000 (17:09 +0000)]
igbvf: fix the bug when initializing the igbvf
Maybe it's a typo, but it cause that igbvf can't be initialized successfully.
Set perm_addr value using valid dev_addr, although which is equal to hw.mac.addr.
Signed-off-by: Samuel Liao <samuelliao@tencent.com>
Signed-off-by: Shan Wei <davidshan@tencent.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Steve Glendinning [Mon, 30 Apr 2012 07:56:56 +0000 (07:56 +0000)]
smsc75xx: enable mac to detect speed/duplex from phy
This patch sets the automatic speed and duplex detection bits
in MAC_CR to enable the mac to determine its speed automatically
from the phy.
Note this must be done BEFORE the receiver or transmitter is
enabled.
Signed-off-by: Stephane Fillod <fillods@users.sf.net>
Signed-off-by: Steve Glendinning <steve.glendinning@shawell.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Steve Glendinning [Mon, 30 Apr 2012 07:56:55 +0000 (07:56 +0000)]
smsc75xx: declare smsc75xx's MII as GMII capable
also explicitly set the phy to advertise 1000 speeds
Signed-off-by: Stephane Fillod <fillods@users.sf.net>
Signed-off-by: Steve Glendinning <steve.glendinning@shawell.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Steve Glendinning [Mon, 30 Apr 2012 07:56:54 +0000 (07:56 +0000)]
smsc75xx: fix phy interrupt acknowledge
smsc75xx phy interrupt acknowledge needs an mdio_write to clear
PHY_INT_SRC instead of just a read like in smsc95xx.
Signed-off-by: Stephane Fillod <fillods@users.sf.net>
Signed-off-by: Steve Glendinning <steve.glendinning@shawell.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Steve Glendinning [Mon, 30 Apr 2012 07:56:53 +0000 (07:56 +0000)]
smsc75xx: fix phy init reset loop
fix bug in phy_init loop that was ignoring BMCR reset bit, akin to smsc95xx's
d946092000698fd204d82a9d239103c656fb63bf
Signed-off-by: Stephane Fillod <fillods@users.sf.net>
Signed-off-by: Steve Glendinning <steve.glendinning@shawell.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Steve Glendinning [Mon, 30 Apr 2012 07:56:52 +0000 (07:56 +0000)]
smsc75xx: add more information to register io failure warnings
Signed-off-by: Stephane Fillod <fillods@users.sf.net>
Signed-off-by: Steve Glendinning <steve.glendinning@shawell.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Steve Glendinning [Mon, 30 Apr 2012 07:56:51 +0000 (07:56 +0000)]
smsc75xx: fix mdio reads and writes
smsc75xx needs MII_ACCESS_BUSY to be set to correctly trigger mdio I/O. Note smsc75xx is different from smsc95xx in this regard.
Signed-off-by: Stephane Fillod <fillods@users.sf.net>
Signed-off-by: Steve Glendinning <steve.glendinning@shawell.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Steve Glendinning [Mon, 30 Apr 2012 07:56:50 +0000 (07:56 +0000)]
smsc75xx: mark link down on startup and let PHY interrupt deal with carrier changes
This patch fixes the same issue as reported on smsc95xx, where the
usb device is connected with no ethernet cable plugged-in.
Without this patch sysfs reports the cable as present
flag@flag-desktop:~$ cat /sys/class/net/eth0/carrier
1
while it's not:
flag@flag-desktop:~$ sudo mii-tool eth0
eth0: no link
Signed-off-by: Steve Glendinning <steve.glendinning@shawell.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Linus Torvalds [Mon, 30 Apr 2012 22:34:41 +0000 (15:34 -0700)]
Merge branch 'fixes' of git://git.linaro.org/people/rmk/linux-arm
Pull ARM fixes from Russell King.
* 'fixes' of git://git.linaro.org/people/rmk/linux-arm:
ARM: 7406/1: hotplug: copy the affinity mask when forcefully migrating IRQs
ARM: 7405/1: kexec: call platform_cpu_kill on the killer rather than the victim
ARM: 7403/1: tls: remove covert channel via TPIDRURW
ARM: 7401/1: mm: Fix section mismatches
ARM: OMAP: fix DMA vs memory ordering
ARM: 7390/1: dts: versatile-pb/ab fix MMC IRQs
ARM: 7400/1: vfp: clear fpscr length and stride bits on entry to sig handler
ARM: 7399/1: vfp: move user vfp state save/restore code out of signal.c
ARM: 7398/1: l2x0: only write to debug registers on PL310
ARM: 7397/1: l2x0: only apply workaround for erratum #753970 on PL310
ARM: 7396/1: errata: only handle ARM erratum #326103 on affected cores
Linus Torvalds [Mon, 30 Apr 2012 22:33:50 +0000 (15:33 -0700)]
Merge tag 'scsi-fixes' of git://git./linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"This is a set of SAS and SATA fixes; there are one or two longstanding
bug fixes, but most of this is regression fixes."
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
[SCSI] libfc: update mfs boundry checking
[SCSI] Revert "[SCSI] libsas: fix sas port naming"
[SCSI] libsas: fix false positive 'device attached' conditions
[SCSI] libsas, libata: fix start of life for a sas ata_port
[SCSI] libsas: fix ata_eh clobbering ex_phys via smp_ata_check_ready
[SCSI] libsas: unify domain_device sas_rphy lifetimes
[SCSI] libsas: fix sas_get_port_device regression
[SCSI] libsas: fix sas_find_bcast_phy() in the presence of 'vacant' phys
[SCSI] libsas: introduce sas_work to fix sas_drain_work vs sas_queue_work
[SCSI] libata: Pass correct DMA device to scsi host
[SCSI] scsi_lib: use correct DMA device in __scsi_alloc_queue
Matthew Garrett [Mon, 30 Apr 2012 20:11:30 +0000 (16:11 -0400)]
efi: Validate UEFI boot variables
A common flaw in UEFI systems is a refusal to POST triggered by a malformed
boot variable. Once in this state, machines may only be restored by
reflashing their firmware with an external hardware device. While this is
obviously a firmware bug, the serious nature of the outcome suggests that
operating systems should filter their variable writes in order to prevent
a malicious user from rendering the machine unusable.
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Matthew Garrett [Mon, 30 Apr 2012 20:11:29 +0000 (16:11 -0400)]
efi: Add new variable attributes
More recent versions of the UEFI spec have added new attributes for
variables. Add them.
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Randy Dunlap [Mon, 30 Apr 2012 19:25:31 +0000 (12:25 -0700)]
nfsd: fix nfs4recover.c printk format warning
Fix printk format warnings -- both items are size_t,
so use %zu to print them.
fs/nfsd/nfs4recover.c:580:3: warning: format '%lu' expects type 'long unsigned int', but argument 3 has type 'size_t'
fs/nfsd/nfs4recover.c:580:3: warning: format '%lu' expects type 'long unsigned int', but argument 4 has type 'unsigned int'
Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Cc: "J. Bruce Fields" <bfields@fieldses.org>
Cc: linux-nfs@vger.kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Felix Fietkau [Sun, 29 Apr 2012 13:44:16 +0000 (15:44 +0200)]
mac80211: fix AP mode EAP tx for VLAN stations
EAP frames for stations in an AP VLAN are sent on the main AP interface
to avoid race conditions wrt. moving stations.
For that to work properly, sta_info_get_bss must be used instead of
sta_info_get when sending EAP packets.
Previously this was only done for cooked monitor injected packets, so
this patch adds a check for tx->skb->protocol to the same place.
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Cc: stable@vger.kernel.org
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Linus Torvalds [Mon, 30 Apr 2012 18:07:53 +0000 (11:07 -0700)]
Merge branch 'merge' of git://git./linux/kernel/git/benh/powerpc
Pull powerpc fixes from Benjamin Herrenschmidt:
"Here are a handful more fixes for powerpc. The irq stuff are all
regression fixes, and Gavin's patch is a simple compile fix."
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc:
tty/serial/pmac_zilog: Fix "nobody cared" IRQ message
powerpc/pseries: Rivet CONFIG_EEH for pSeries platform
powerpc/irqdomain: Fix broken NR_IRQ references
powerpc/8xx: Fix NR_IRQ bugs and refactor 8xx interrupt controller
Yuchung Cheng [Mon, 30 Apr 2012 06:00:18 +0000 (06:00 +0000)]
tcp: fix infinite cwnd in tcp_complete_cwr()
When the cwnd reduction is done, ssthresh may be infinite
if TCP enters CWR via ECN or F-RTO. If cwnd is not undone, i.e.,
undo_marker is set, tcp_complete_cwr() falsely set cwnd to the
infinite ssthresh value. The correct operation is to keep cwnd
intact because it has been updated in ECN or F-RTO.
Signed-off-by: Yuchung Cheng <ycheng@google.com>
Acked-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jan Seiffert [Sun, 29 Apr 2012 19:02:19 +0000 (19:02 +0000)]
bpf jit: Let the powerpc jit handle negative offsets
Now the helper function from filter.c for negative offsets is exported,
it can be used it in the jit to handle negative offsets.
First modify the asm load helper functions to handle:
- know positive offsets
- know negative offsets
- any offset
then the compiler can be modified to explicitly use these helper
when appropriate.
This fixes the case of a negative X register and allows to lift
the restriction that bpf programs with negative offsets can't
be jited.
Tested-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Jan Seiffert <kaffeemonster@googlemail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Eric Dumazet [Sat, 28 Apr 2012 23:21:56 +0000 (23:21 +0000)]
net: fix sk_sockets_allocated_read_positive
Denys Fedoryshchenko reported frequent crashes on a proxy server and kindly
provided a lockdep report that explains it all :
[ 762.903868]
[ 762.903880] =================================
[ 762.903890] [ INFO: inconsistent lock state ]
[ 762.903903] 3.3.4-build-0061 #8 Not tainted
[ 762.904133] ---------------------------------
[ 762.904344] inconsistent {IN-SOFTIRQ-W} -> {SOFTIRQ-ON-W} usage.
[ 762.904542] squid/1603 [HC0[0]:SC0[0]:HE1:SE1] takes:
[ 762.904542] (key#3){+.?...}, at: [<
c0232cc4>]
__percpu_counter_sum+0xd/0x58
[ 762.904542] {IN-SOFTIRQ-W} state was registered at:
[ 762.904542] [<
c0158b84>] __lock_acquire+0x284/0xc26
[ 762.904542] [<
c01598e8>] lock_acquire+0x71/0x85
[ 762.904542] [<
c0349765>] _raw_spin_lock+0x33/0x40
[ 762.904542] [<
c0232c93>] __percpu_counter_add+0x58/0x7c
[ 762.904542] [<
c02cfde1>] sk_clone_lock+0x1e5/0x200
[ 762.904542] [<
c0303ee4>] inet_csk_clone_lock+0xe/0x78
[ 762.904542] [<
c0315778>] tcp_create_openreq_child+0x1b/0x404
[ 762.904542] [<
c031339c>] tcp_v4_syn_recv_sock+0x32/0x1c1
[ 762.904542] [<
c031615a>] tcp_check_req+0x1fd/0x2d7
[ 762.904542] [<
c0313f77>] tcp_v4_do_rcv+0xab/0x194
[ 762.904542] [<
c03153bb>] tcp_v4_rcv+0x3b3/0x5cc
[ 762.904542] [<
c02fc0c4>] ip_local_deliver_finish+0x13a/0x1e9
[ 762.904542] [<
c02fc539>] NF_HOOK.clone.11+0x46/0x4d
[ 762.904542] [<
c02fc652>] ip_local_deliver+0x41/0x45
[ 762.904542] [<
c02fc4d1>] ip_rcv_finish+0x31a/0x33c
[ 762.904542] [<
c02fc539>] NF_HOOK.clone.11+0x46/0x4d
[ 762.904542] [<
c02fc857>] ip_rcv+0x201/0x23e
[ 762.904542] [<
c02daa3a>] __netif_receive_skb+0x319/0x368
[ 762.904542] [<
c02dac07>] netif_receive_skb+0x4e/0x7d
[ 762.904542] [<
c02dacf6>] napi_skb_finish+0x1e/0x34
[ 762.904542] [<
c02db122>] napi_gro_receive+0x20/0x24
[ 762.904542] [<
f85d1743>] e1000_receive_skb+0x3f/0x45 [e1000e]
[ 762.904542] [<
f85d3464>] e1000_clean_rx_irq+0x1f9/0x284 [e1000e]
[ 762.904542] [<
f85d3926>] e1000_clean+0x62/0x1f4 [e1000e]
[ 762.904542] [<
c02db228>] net_rx_action+0x90/0x160
[ 762.904542] [<
c012a445>] __do_softirq+0x7b/0x118
[ 762.904542] irq event stamp:
156915469
[ 762.904542] hardirqs last enabled at (
156915469): [<
c019b4f4>]
__slab_alloc.clone.58.clone.63+0xc4/0x2de
[ 762.904542] hardirqs last disabled at (
156915468): [<
c019b452>]
__slab_alloc.clone.58.clone.63+0x22/0x2de
[ 762.904542] softirqs last enabled at (
156915466): [<
c02ce677>]
lock_sock_nested+0x64/0x6c
[ 762.904542] softirqs last disabled at (
156915464): [<
c0349914>]
_raw_spin_lock_bh+0xe/0x45
[ 762.904542]
[ 762.904542] other info that might help us debug this:
[ 762.904542] Possible unsafe locking scenario:
[ 762.904542]
[ 762.904542] CPU0
[ 762.904542] ----
[ 762.904542] lock(key#3);
[ 762.904542] <Interrupt>
[ 762.904542] lock(key#3);
[ 762.904542]
[ 762.904542] *** DEADLOCK ***
[ 762.904542]
[ 762.904542] 1 lock held by squid/1603:
[ 762.904542] #0: (sk_lock-AF_INET){+.+.+.}, at: [<
c03055c0>]
lock_sock+0xa/0xc
[ 762.904542]
[ 762.904542] stack backtrace:
[ 762.904542] Pid: 1603, comm: squid Not tainted 3.3.4-build-0061 #8
[ 762.904542] Call Trace:
[ 762.904542] [<
c0347b73>] ? printk+0x18/0x1d
[ 762.904542] [<
c015873a>] valid_state+0x1f6/0x201
[ 762.904542] [<
c0158816>] mark_lock+0xd1/0x1bb
[ 762.904542] [<
c015876b>] ? mark_lock+0x26/0x1bb
[ 762.904542] [<
c015805d>] ? check_usage_forwards+0x77/0x77
[ 762.904542] [<
c0158bf8>] __lock_acquire+0x2f8/0xc26
[ 762.904542] [<
c0159b8e>] ? mark_held_locks+0x5d/0x7b
[ 762.904542] [<
c0159cf6>] ? trace_hardirqs_on+0xb/0xd
[ 762.904542] [<
c0158dd4>] ? __lock_acquire+0x4d4/0xc26
[ 762.904542] [<
c01598e8>] lock_acquire+0x71/0x85
[ 762.904542] [<
c0232cc4>] ? __percpu_counter_sum+0xd/0x58
[ 762.904542] [<
c0349765>] _raw_spin_lock+0x33/0x40
[ 762.904542] [<
c0232cc4>] ? __percpu_counter_sum+0xd/0x58
[ 762.904542] [<
c0232cc4>] __percpu_counter_sum+0xd/0x58
[ 762.904542] [<
c02cebc4>] __sk_mem_schedule+0xdd/0x1c7
[ 762.904542] [<
c02d178d>] ? __alloc_skb+0x76/0x100
[ 762.904542] [<
c0305e8e>] sk_wmem_schedule+0x21/0x2d
[ 762.904542] [<
c0306370>] sk_stream_alloc_skb+0x42/0xaa
[ 762.904542] [<
c0306567>] tcp_sendmsg+0x18f/0x68b
[ 762.904542] [<
c031f3dc>] ? ip_fast_csum+0x30/0x30
[ 762.904542] [<
c0320193>] inet_sendmsg+0x53/0x5a
[ 762.904542] [<
c02cb633>] sock_aio_write+0xd2/0xda
[ 762.904542] [<
c015876b>] ? mark_lock+0x26/0x1bb
[ 762.904542] [<
c01a1017>] do_sync_write+0x9f/0xd9
[ 762.904542] [<
c01a2111>] ? file_free_rcu+0x2f/0x2f
[ 762.904542] [<
c01a17a1>] vfs_write+0x8f/0xab
[ 762.904542] [<
c01a284d>] ? fget_light+0x75/0x7c
[ 762.904542] [<
c01a1900>] sys_write+0x3d/0x5e
[ 762.904542] [<
c0349ec9>] syscall_call+0x7/0xb
[ 762.904542] [<
c0340000>] ? rp_sidt+0x41/0x83
Bug is that sk_sockets_allocated_read_positive() calls
percpu_counter_sum_positive() without BH being disabled.
This bug was added in commit
180d8cd942ce33
(foundations of per-cgroup memory pressure controlling.), since previous
code was using percpu_counter_read_positive() which is IRQ safe.
In __sk_mem_schedule() we dont need the precise count of allocated
sockets and can revert to previous behavior.
Reported-by: Denys Fedoryshchenko <denys@visp.net.lb>
Sined-off-by: Eric Dumazet <edumazet@google.com>
Cc: Glauber Costa <glommer@parallels.com>
Acked-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Mon, 30 Apr 2012 17:23:22 +0000 (13:23 -0400)]
Merge branch 'master' of git://1984.lsi.us.es/net
Linus Torvalds [Mon, 30 Apr 2012 17:13:48 +0000 (10:13 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/dtor/input
Pull input fix from Dmitry Torokhov:
"A simple fix for a recent regression in Synaptics driver"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: synaptics - fix regression with "image sensor" trackpads
Trond Myklebust [Mon, 30 Apr 2012 16:04:58 +0000 (12:04 -0400)]
NFSv4.1: Use the correct hostname in the client identifier string
We need to use the hostname of the process that created the nfs_client.
That hostname is now stored in the rpc_client->cl_nodename.
Also remove the utsname()->domainname component. There is no reason
to include the NIS/YP domainname in a client identifier string.
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Trond Myklebust [Mon, 30 Apr 2012 15:52:40 +0000 (11:52 -0400)]
SUNRPC: RPC client must use the current utsname hostname string
Now that the rpc client is namespace aware, it needs to use the
utsname of the process that created it instead of using the
init_utsname. Both rpc_new_client and rpc_clone_client need to
be fixed.
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Cc: Stanislav Kinsbursky <skinsbursky@parallels.com>
Pablo Neira Ayuso [Fri, 27 Apr 2012 00:00:50 +0000 (02:00 +0200)]
netfilter: xt_CT: fix wrong checking in the timeout assignment path
The current checking always succeeded. We have to check the first
character of the string to check that it's empty, thus, skipping
the timeout path.
This fixes the use of the CT target without the timeout option.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Hans Schillstrom [Thu, 26 Apr 2012 05:47:44 +0000 (07:47 +0200)]
ipvs: kernel oops - do_ip_vs_get_ctl
Change order of init so netns init is ready
when register ioctl and netlink.
Ver2
Whitespace fixes and __init added.
Reported-by: "Ryan O'Hara" <rohara@redhat.com>
Signed-off-by: Hans Schillstrom <hans.schillstrom@ericsson.com>
Acked-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: Simon Horman <horms@verge.net.au>
Hans Schillstrom [Thu, 26 Apr 2012 07:45:35 +0000 (09:45 +0200)]
ipvs: take care of return value from protocol init_netns
ip_vs_create_timeout_table() can return NULL
All functions protocol init_netns is affected of this patch.
Signed-off-by: Hans Schillstrom <hans.schillstrom@ericsson.com>
Acked-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: Simon Horman <horms@verge.net.au>
Hans Schillstrom [Thu, 26 Apr 2012 07:45:34 +0000 (09:45 +0200)]
ipvs: null check of net->ipvs in lblc(r) shedulers
Avoid crash when registering shedulers after
the IPVS core initialization for netns fails. Do this by
checking for present core (net->ipvs).
Signed-off-by: Hans Schillstrom <hans.schillstrom@ericsson.com>
Acked-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: Simon Horman <horms@verge.net.au>
Ben Skeggs [Fri, 27 Apr 2012 05:11:33 +0000 (15:11 +1000)]
drm/nv10/gpio: fix thinko in mask for gpio lines 2-9
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Christoph Bumiller [Thu, 19 Apr 2012 17:59:20 +0000 (19:59 +0200)]
nvc0/fb: shut up PMFB interrupt after the first occurrence
Signed-off-by: Christoph Bumiller <e0425955@student.tuwien.ac.at>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Ben Skeggs [Tue, 24 Apr 2012 03:26:51 +0000 (13:26 +1000)]
drm/nouveau/hdmi: use correct hdmi regs for nvaa/nvac
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Ben Skeggs [Fri, 13 Apr 2012 09:22:30 +0000 (19:22 +1000)]
drm/nouveau/bios: fix regression on some nv4x board
We started using the connector table on nv4x a while back, and this VBIOS
has bad connector indices which causes the wrong encoders to get paired
with connectors.
Add a quirk to fix this...
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Larry Finger [Sat, 28 Apr 2012 23:53:49 +0000 (18:53 -0500)]
tty/serial/pmac_zilog: Fix "nobody cared" IRQ message
Following commit a79dd5a titled "tty/serial/pmac_zilog: Fix suspend & resume",
my Powerbook G4 Titanium showed the following stack dump:
[ 36.878225] irq 23: nobody cared (try booting with the "irqpoll" option)
[ 36.878251] Call Trace:
[ 36.878291] [
dfff3f00] [
c000984c] show_stack+0x7c/0x194 (unreliable)
[ 36.878322] [
dfff3f40] [
c00a6868] __report_bad_irq+0x44/0xf4
[ 36.878339] [
dfff3f60] [
c00a6b04] note_interrupt+0x1ec/0x2ac
[ 36.878356] [
dfff3f80] [
c00a48d0] handle_irq_event_percpu+0x250/0x2b8
[ 36.878372] [
dfff3fd0] [
c00a496c] handle_irq_event+0x34/0x54
[ 36.878389] [
dfff3fe0] [
c00a753c] handle_fasteoi_irq+0xb4/0x124
[ 36.878412] [
dfff3ff0] [
c000f5bc] call_handle_irq+0x18/0x28
[ 36.878428] [
deef1f10] [
c000719c] do_IRQ+0x114/0x1cc
[ 36.878446] [
deef1f40] [
c0015868] ret_from_except+0x0/0x1c
[ 36.878484] --- Exception: 501 at 0xf497610
[ 36.878489] LR = 0xfdc3dd0
[ 36.878497] handlers:
[ 36.878510] [<
c02b7424>] pmz_interrupt
[ 36.878520] Disabling IRQ #23
From an E-mail exchange about this problem, Andreas Schwab noticed a typo
that resulted in the wrong condition being tested.
The patch also corrects 2 typos that incorrectly report why an error branch
is being taken.
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>