Li Zefan [Wed, 30 Dec 2009 06:23:40 +0000 (14:23 +0800)]
ksym_tracer: Fix race when incrementing count
We are under rcu read section but not holding the write lock, so
count++ is not atomic. Use atomic64_t instead.
Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: K.Prasad <prasad@linux.vnet.ibm.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
LKML-Reference: <
4B3AF1EC.9010608@cn.fujitsu.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Li Zefan [Wed, 30 Dec 2009 06:23:19 +0000 (14:23 +0800)]
ksym_tracer: Fix to allow writing newline to ksym_trace_filter
It used to work, but now doesn't:
# echo > ksym_filter
bash: echo: write error: Invalid argument
It's caused by
d954fbf0ff6b5fdfb32350e85a2f15d3db976506
("tracing: Fix wrong usage of strstrip in trace_ksyms").
Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: K.Prasad <prasad@linux.vnet.ibm.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
LKML-Reference: <
4B3AF1D7.5040400@cn.fujitsu.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Li Zefan [Wed, 30 Dec 2009 06:22:22 +0000 (14:22 +0800)]
ksym_tracer: Fix to make the tracer work
ksym tracer doesn't work:
# echo tasklist_lock:rw- > ksym_trace_filter
-bash: echo: write error: No such device
It's because we pass to perf_event_create_kernel_counter()
a cpu number which is not present.
Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: K.Prasad <prasad@linux.vnet.ibm.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
LKML-Reference: <
4B3AF19E.1010201@cn.fujitsu.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Zhang Rui [Mon, 13 Jul 2009 02:33:24 +0000 (10:33 +0800)]
ACPI video: no warning message if "acpi_backlight=vendor" is used
AML code always sends notifications to ACPI video device,
even if we disable the ACPI backlight control by using
boot option "acpi_backlight=vendor".
In this case we should not print any warning message.
http://bugzilla.kernel.org/show_bug.cgi?id=13671#c14
Sigend-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Ingo Molnar [Thu, 17 Dec 2009 07:50:25 +0000 (08:50 +0100)]
ACPI: fix ACPI=n allmodconfig build
Today's -tip failed to build because commit
9e368fa011d4e0aa050db348d69514900520e40b ("ipmi: add PNP discovery (ACPI
namespace via PNPACPI)") from today's upstream kernel causes the following
build failure on x86, for CONFIG_ACPI=n && CONFIG_IPMI_SI=y:
drivers/char/ipmi/ipmi_si_intf.c:3208: error: 'ipmi_pnp_driver' undeclared (first use in this function)
drivers/char/ipmi/ipmi_si_intf.c:3208: error: (Each undeclared identifier is reported only once
drivers/char/ipmi/ipmi_si_intf.c:3208: error: for each function it appears in.)
drivers/char/ipmi/ipmi_si_intf.c:3334: error: 'ipmi_pnp_driver' undeclared (first use in this function)
The reason is that the ipmi_pnp_driver depends on ACPI facilities and is only
made available under ACPI - while the registration and unregistration is made
dependent on CONFIG_PNP:
#ifdef CONFIG_PNP
pnp_register_driver(&ipmi_pnp_driver);
#endif
The solution is to only register this driver under ACPI. (Also, the CONFIG_PNP
dependency is not needed because pnp_register_driver() is stubbed out in the
!CONFIG_PNP case.)
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Acked-by: Myron Stowe <myron.stowe@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Aneesh Kumar K.V [Wed, 30 Dec 2009 04:39:06 +0000 (23:39 -0500)]
ext4: Ensure zeroout blocks have no dirty metadata
This fixes a bug (found by Curt Wohlgemuth) in which new blocks
returned from an extent created with ext4_ext_zeroout() can have dirty
metadata still associated with them.
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Curt Wohlgemuth <curtw@google.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
NeilBrown [Wed, 30 Dec 2009 04:25:23 +0000 (15:25 +1100)]
md: allow a resync that is waiting for other resync to complete, to be aborted.
If two arrays share a device, then they will not both resync at the
same time. One will wait for the other to complete.
While waiting, the MD_RECOVERY_INTR flag is not checked so a device
failure, which would make the resync pointless, does not cause the
resync to abort, so the failed device cannot be removed (as it cannot
be remove while a resync is happening).
So add a test for MD_RECOVERY_INTR.
Reported-by: Brett Russ <bruss@netezza.com>
Signed-off-by: NeilBrown <neilb@suse.de>
NeilBrown [Wed, 30 Dec 2009 04:19:08 +0000 (15:19 +1100)]
md: remove unnecessary code from do_md_run
Since commit
dfc7064500061677720fa26352963c772d3ebe6b,
->hot_remove_disks has not removed non-failed devices from
an array until recovery is no longer possible.
So the code in do_md_run to get around the fact that
md_check_recovery (which calls ->hot_remove_disks) would
remove partially-in-sync devices is no longer needed.
So remove it.
Signed-off-by: NeilBrown <neilb@suse.de>
Dan Williams [Tue, 22 Dec 2009 01:18:36 +0000 (18:18 -0700)]
md: make recovery started by do_md_run() visible via sync_action
By default md_do_sync() will perform recovery if no other actions are
specified. However, action_show() relies on MD_RECOVERY_RECOVER to be
set otherwise it returns 'idle'. So, add a missing set
MD_RECOVERY_RECOVER when starting recovery.
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: NeilBrown <neilb@suse.de>
NeilBrown [Wed, 30 Dec 2009 01:08:50 +0000 (12:08 +1100)]
md: fix small irregularity with start_ro module parameter
The start_ro modules parameter can be used to force arrays to be
started in 'auto-readonly' in which they are read-only until the first
write. This ensures that no resync/recovery happens until something
else writes to the device. This is important for resume-from-disk
off an md array.
However if an array is started 'readonly' (by writing 'readonly' to
the 'array_state' sysfs attribute) we want it to be really 'readonly',
not 'auto-readonly'.
So strengthen the condition to only set auto-readonly if the
array is not already read-only.
Signed-off-by: NeilBrown <neilb@suse.de>
David S. Miller [Wed, 30 Dec 2009 03:44:25 +0000 (19:44 -0800)]
Merge branch 'master' of git://git./linux/kernel/git/linville/wireless-2.6
NeilBrown [Wed, 30 Dec 2009 01:08:49 +0000 (12:08 +1100)]
md: Fix unfortunate interaction with evms
evms configures md arrays by:
open device
send ioctl
close device
for each different ioctl needed.
Since 2.6.29, the device can disappear after the 'close'
unless a significant configuration has happened to the device.
The change made by "SET_ARRAY_INFO" can too minor to stop the device
from disappearing, but important enough that losing the change is bad.
So: make sure SET_ARRAY_INFO sets mddev->ctime, and keep the device
active as long as ctime is non-zero (it gets zeroed with lots of other
things when the array is stopped).
This is suitable for -stable kernels since 2.6.29.
Signed-off-by: NeilBrown <neilb@suse.de>
Cc: stable@kernel.org
Frederic Weisbecker [Tue, 29 Dec 2009 20:51:15 +0000 (21:51 +0100)]
reiserfs: Fix remaining in-reclaim-fs <-> reclaim-fs-on locking inversion
Commit
500f5a0bf5f0624dae34307010e240ec090e4cde
(reiserfs: Fix possible recursive lock) fixed a vmalloc under reiserfs
lock that triggered a lockdep warning because of a
IN-FS-RECLAIM <-> RECLAIM-FS-ON locking dependency inversion.
But this patch has ommitted another vmalloc call in the same path
that allocates the journal. Relax the lock for this one too.
Reported-by: Alexander Beregalov <a.beregalov@gmail.com>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Chris Mason <chris.mason@oracle.com>
Cc: Ingo Molnar <mingo@elte.hu>
John W. Linville [Tue, 29 Dec 2009 19:07:42 +0000 (14:07 -0500)]
Revert "b43: Enforce DMA descriptor memory constraints"
This reverts commit
9bd568a50c446433038dec2a5186c5c57c3dbd23.
That commit is shown to cause allocation failures during initialization
on some machines.
http://bugzilla.kernel.org/show_bug.cgi?id=14844
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Stefan Richter [Sat, 26 Dec 2009 00:36:53 +0000 (01:36 +0100)]
firewire, ieee1394: update Kconfig help
Update the Kconfig help texts of both stacks to encourage a general move
from the older to the newer drivers. However, do not label ieee1394 as
"Obsolete" yet, as the newer drivers have not been deployed as default
stack in the majority of Linux distributions yet, and those who start
doing so now may still want to install the old drivers as fallback for
unforeseen issues.
Since Linux 2.6.32, FireWire audio devices can be driven by the newer
firewire driver stack too, hence remove an outdated comment about audio
devices. Also remove comments about library versions since the 2nd
generation of libraw1394 and libdc1394 is now in common use; details on
library versions can be read at the wiki link from the help texts.
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Stefan Richter [Sat, 26 Dec 2009 00:36:12 +0000 (01:36 +0100)]
firewire, ieee1394: update MAINTAINERS entries
Ben and Kristian have not been involved in maintenance of the IEEE 1394
drivers for quite some time; submitters are not required to Cc them on
patches.
The linux1394.org domain has been dead for a while and is no longer
under control of a Linux developer. The current web site of the
Linux 1394 project is http://ieee1394.wiki.kernel.org/.
The classic drivers/ieee1394/ stack is now obsolete from the development
point of view, though still a useful alternative in productive use. But
nobody should attempt to submit style cleanup patches for it or to
develop new drivers on top of this stack, hence mark its MAINTAINERS
entry as Obsolete.
drivers/ieee1394/raw1394*, like the rest of the old stack, does not
receive bigger code changes anymore, hence shrink the MAINTAINERS
database a bit by dropping raw1394's special entry. If something
important and urgent is going to come up for raw1394, I will make sure
that Dan will be notified of it besides via linux1394-devel.
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Signed-off-by: Dan Dennedy <dan@dennedy.org>
Cc: Ben Collins <ben.collins@ubuntu.com>
Cc: Kristian Hoegsberg <krh@bitplanet.net>
Stefan Richter [Sat, 26 Dec 2009 00:35:14 +0000 (01:35 +0100)]
firewire: ohci: always use packet-per-buffer mode for isochronous reception
This is a minimal change meant for the short term: Never set the
ohci->use_dualbuffer flag to true.
There are two reasons to do so:
- Packet-per-buffer mode and dual-buffer mode do not behave the same
under certain circumstances, notably if several packets are covered
by a single fw_cdev_iso_packet descriptor.
http://marc.info/?l=linux1394-devel&m=
124965653718313
Therefore the driver stack should not silently choose one or the
other mode but should leave the choice to the high-level driver
(regardless if kernel driver or userspace driver). Or simply always
only offer packet-per-buffer mode, since a considerable number of
controllers, even current ones, does not offer dual-buffer support.
- Even under circumstances where packet-per-buffer mode and
dual-buffer mode behave exactly the same --- notably when used
through libraw1394, libdc1394, as well as the current two kernel
drivers which use isochronous reception (firewire-net and firedtv)
--- we are still faced with the problem that several OHCI 1.1
controllers have bugs in dual-buffer mode. Although it looks like
we have identified most of those buggy controllers by now, we
cannot be quite sure about that.
So, use packet-per-buffer by default from now on. This change should
be followed up by a more complete solution: Either extend the
in-kernel API and the userspace ABI by a choice between the two IR modes
or remove all dual-buffer related code from firewire-ohci.
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Stefan Richter [Sat, 26 Dec 2009 00:34:29 +0000 (01:34 +0100)]
firewire: cdev: fix another memory leak in an error path
If copy_from_user in an FW_CDEV_IOC_SEND_RESPONSE ioctl failed, the
fw_request pointed to by the inbound_transaction_resource is no
longer referenced and needs to be freed.
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Clemens Ladisch [Thu, 24 Dec 2009 11:05:58 +0000 (12:05 +0100)]
firewire: fix use of multiple AV/C devices, allow multiple FCP listeners
Control of more than one AV/C device at once --- e.g. camcorders, tape
decks, audio devices, TV tuners --- failed or worked only unreliably,
depending on driver implementation. This affected kernelspace and
userspace drivers alike and was caused by firewire-core's inability to
accept multiple registrations of FCP listeners.
The fix allows multiple address handlers to be registered for the FCP
command and response registers. When a request for these registers is
received, all handlers are invoked, and the Firewire response is
generated by the core and not by any handler.
The cdev API does not change, i.e., userspace is still expected to send
a response for FCP requests; this response is silently ignored.
Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de> (changelog, rebased, whitespace)
OGAWA Hirofumi [Tue, 29 Dec 2009 07:53:54 +0000 (08:53 +0100)]
block: Honor the gfp_mask for alloc_page() in blkdev_issue_discard()
Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Martin K. Petersen [Tue, 29 Dec 2009 07:35:35 +0000 (08:35 +0100)]
block: Fix incorrect alignment offset reporting and update documentation
queue_sector_alignment_offset returned the wrong value which caused
partitions to report an incorrect alignment_offset. Since offset
alignment calculation is needed several places it has been split into a
separate helper function. The topology stacking function has been
updated accordingly.
Furthermore, comments have been added to clarify how the stacking
function works.
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Tested-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Mike Travis [Mon, 28 Dec 2009 21:28:25 +0000 (13:28 -0800)]
x86: SGI UV: Fix writes to led registers on remote uv hubs
The wrong address was being used to write the SCIR led regs on
remote hubs. Also, there was an inconsistency between how BIOS
and the kernel indexed these regs. Standardize on using the
lower 6 bits of the APIC ID as the index.
This patch fixes the problem of writing to an errant address to
a cpu # >= 64.
Signed-off-by: Mike Travis <travis@sgi.com>
Reviewed-by: Jack Steiner <steiner@sgi.com>
Cc: Robin Holt <holt@sgi.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: stable@kernel.org
LKML-Reference: <
4B3922F9.3060905@sgi.com>
[ v2: fix a number of annoying checkpatch artifacts and whitespace noise ]
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Paul Mundt [Tue, 29 Dec 2009 02:09:30 +0000 (11:09 +0900)]
sh: Only provide a PCLK definition for legacy CPG CPUs.
As CPUs are migrated over to more fully-featured clock frameworks of
their own and off of the legacy CPG code, they no longer have any real
need for defining the PCLK value. The PCLK define in itself is already
fairly misleading, as many boards get their input clocks from different
sources, making this value fairly arbitrary anyways.
Outside of the legacy CPG clock framework, the only place where this
value is used is for deriving CLOCK_TICK_RATE, which we set back to the
legacy PIT value that it was before the PCLK definitions were added in
the first place.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Zhu Yi [Mon, 28 Dec 2009 06:23:11 +0000 (14:23 +0800)]
iwmc3200wifi: fix array out-of-boundary access
Allocate priv->rx_packets[IWM_RX_ID_HASH + 1] because the max array
index is IWM_RX_ID_HASH according to IWM_RX_ID_GET_HASH().
Cc: stable@kernel.org
Signed-off-by: Zhu Yi <yi.zhu@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Roel Kluin [Sat, 26 Dec 2009 19:31:59 +0000 (20:31 +0100)]
wl1251: timeout one too soon in wl1251_boot_run_firmware()
`loop' reaches INIT_LOOP + 1 after the loop. so if ACX_INTR_INIT_COMPLETE
occurs in the last iteration the write occurs but also the error out as if a
timeout occurred. This is probably very unlikely to ever occur.
Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Acked-by: Kalle Valo <kalle.valo@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Luis R. Rodriguez [Thu, 24 Dec 2009 20:38:22 +0000 (15:38 -0500)]
mac80211: fix propagation of failed hardware reconfigurations
mac80211 does not propagate failed hardware reconfiguration
requests. For suspend and resume this is important due to all
the possible issues that can come out of the suspend <-> resume
cycle. Not propagating the error means cfg80211 will assume
the resume for the device went through fine and mac80211 will
continue on trying to poke at the hardware, enable timers,
queue work, and so on for a device which is completley
unfunctional.
The least we can do is to propagate device start issues and
warn when this occurs upon resume. A side effect of this patch
is we also now propagate the start errors upon harware
reconfigurations (non-suspend), but this should also be desirable
anyway, there is not point in continuing to reconfigure a
device if mac80211 was unable to start the device.
For further details refer to the thread:
http://marc.info/?t=
126151038700001&r=1&w=2
Cc: stable@kernel.org
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Luis R. Rodriguez [Thu, 24 Dec 2009 20:26:09 +0000 (15:26 -0500)]
mac80211: fix race with suspend and dynamic_ps_disable_work
When mac80211 suspends it calls a driver's suspend callback
as a last step and after that the driver assumes no calls will
be made to it until we resume and its start callback is kicked.
If such calls are made, however, suspend can end up throwing
hardware in an unexpected state and making the device unusable
upon resume.
Fix this by preventing mac80211 to schedule dynamic_ps_disable_work
by checking for when mac80211 starts to suspend and starts
quiescing. Frames should be allowed to go through though as
that is part of the quiescing steps and we do not flush the
mac80211 workqueue since it was already done towards the
beginning of suspend cycle.
The other mac80211 issue will be hanled in the next patch.
For further details see refer to the thread:
http://marc.info/?t=
126144866100001&r=1&w=2
Cc: stable@kernel.org
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Felix Fietkau [Thu, 24 Dec 2009 13:04:32 +0000 (14:04 +0100)]
ath9k: fix missed error codes in the tx status check
My previous change added in:
commit
815833e7ecf0b9a017315cae6aef4d7cd9517681
ath9k: fix tx status reporting
was not checking all possible tx error conditions. This could possibly
lead to throughput issues due to slow rate control adaption or missed
retransmissions of failed A-MPDU frames.
This patch adds a mask for all possible error conditions and uses it
in the xmit ok check.
Cc: stable@kernel.org
Reported-by: Björn Smedman <bjorn.smedman@venatech.se>
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Luis R. Rodriguez [Thu, 24 Dec 2009 01:03:29 +0000 (20:03 -0500)]
ath9k: wake hardware during AMPDU TX actions
AMDPDU actions poke hardware for TX operation, as such
we want to turn hardware on for these actions. AMDPU RX operations
do not require hardware on as nothing is done in hardware for
those actions. Without this we cannot guarantee hardware has
been programmed correctly for each AMPDU TX action.
Cc: stable@kernel.org
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Luis R. Rodriguez [Thu, 24 Dec 2009 01:03:28 +0000 (20:03 -0500)]
ath9k: wake hardware for interface IBSS/AP/Mesh removal
When we remove a IBSS/AP/Mesh interface we stop DMA
but to do this we should ensure hardware is on. Awaken
the device prior to these calls. This should ensure
DMA is stopped upon suspend and plain device removal.
Cc: stable@kernel.org
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Sujith [Thu, 24 Dec 2009 01:03:27 +0000 (20:03 -0500)]
ath9k: fix suspend by waking device prior to stop
Ensure the device is awake prior to trying to tell hardware
to stop it. Impact of not doing this is we can likely leave
the device in an undefined state likely causing issues with
suspend and resume. This patch ensures harware is where it
should be prior to suspend.
Cc: stable@kernel.org
Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Johannes Berg [Wed, 23 Dec 2009 14:33:35 +0000 (15:33 +0100)]
cfg80211: fix error path in cfg80211_wext_siwscan
If there's an invalid channel or SSID, the code leaks
the scan request. Always free the scan request, unless
it was successfully given to the driver.
Reported-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Acked-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Dan Carpenter [Wed, 23 Dec 2009 13:23:19 +0000 (15:23 +0200)]
wl1271_cmd.c: cleanup char => u8
This is just a clean up and doesn't make a functional difference. It keeps the
lint checkers happy.
Signed-off-by: Dan Carpenter <error27@gmail.com>
Reviewed-by: Kalle Valo <kalle.valo@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Tobias Klauser [Wed, 23 Dec 2009 13:18:11 +0000 (14:18 +0100)]
iwlwifi: Storage class should be before const qualifier
The C99 specification states in section 6.11.5:
The placement of a storage-class specifier other than at the beginning
of the declaration specifiers in a declaration is an obsolescent
feature.
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Acked-by: Zhu Yi <yi.zhu@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Tobias Klauser [Wed, 23 Dec 2009 13:04:43 +0000 (14:04 +0100)]
ath9k: Storage class should be before const qualifier
The C99 specification states in section 6.11.5:
The placement of a storage-class specifier other than at the beginning
of the declaration specifiers in a declaration is an obsolescent
feature.
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Johannes Berg [Wed, 23 Dec 2009 12:12:05 +0000 (13:12 +0100)]
cfg80211: fix race between deauth and assoc response
Joseph Nahmias reported, in http://bugs.debian.org/562016,
that he was getting the following warning (with some log
around the issue):
ath0: direct probe to AP 00:11:95:77:e0:b0 (try 1)
ath0: direct probe responded
ath0: authenticate with AP 00:11:95:77:e0:b0 (try 1)
ath0: authenticated
ath0: associate with AP 00:11:95:77:e0:b0 (try 1)
ath0: deauthenticating from 00:11:95:77:e0:b0 by local choice (reason=3)
ath0: direct probe to AP 00:11:95:77:e0:b0 (try 1)
ath0: RX AssocResp from 00:11:95:77:e0:b0 (capab=0x421 status=0 aid=2)
ath0: associated
------------[ cut here ]------------
WARNING: at net/wireless/mlme.c:97 cfg80211_send_rx_assoc+0x14d/0x152 [cfg80211]()
Hardware name: 7658CTO
...
Pid: 761, comm: phy0 Not tainted 2.6.32-trunk-686 #1
Call Trace:
[<
c1030a5d>] ? warn_slowpath_common+0x5e/0x8a
[<
c1030a93>] ? warn_slowpath_null+0xa/0xc
[<
f86cafc7>] ? cfg80211_send_rx_assoc+0x14d/0x152
...
ath0: link becomes ready
ath0: deauthenticating from 00:11:95:77:e0:b0 by local choice (reason=3)
ath0: no IPv6 routers present
ath0: link is not ready
ath0: direct probe to AP 00:11:95:77:e0:b0 (try 1)
ath0: direct probe responded
ath0: authenticate with AP 00:11:95:77:e0:b0 (try 1)
ath0: authenticated
ath0: associate with AP 00:11:95:77:e0:b0 (try 1)
ath0: RX ReassocResp from 00:11:95:77:e0:b0 (capab=0x421 status=0 aid=2)
ath0: associated
It is not clear to me how the first "direct probe" here
happens, but this seems to be a race condition, if the
user requests to deauth after requesting assoc, but before
the assoc response is received. In that case, it may
happen that mac80211 tries to report the assoc success to
cfg80211, but gets blocked on the wdev lock that is held
because the user is requesting the deauth.
The result is that we run into a warning. This is mostly
harmless, but maybe cause an unexpected event to be sent
to userspace; we'd send an assoc success event although
userspace was no longer expecting that.
To fix this, remove the warning and check whether the
race happened and in that case abort processing.
Reported-by: Joseph Nahmias <joe@nahmias.net>
Cc: stable@kernel.org
Cc: 562016-quiet@bugs.debian.org
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Johannes Berg [Wed, 23 Dec 2009 12:12:04 +0000 (13:12 +0100)]
wireless: remove remaining qual code
This removes the remaining users of the rx status
'qual' field and the field itself.
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Gertjan van Wingerde [Tue, 22 Dec 2009 23:03:21 +0000 (00:03 +0100)]
rt2x00: Add USB ID for Linksys WUSB 600N rev 2.
This is a rt2870 based device.
Signed-off-by: Gertjan van Wingerde <gwingerde@gmail.com>
Acked-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Bob Copeland [Tue, 22 Dec 2009 03:26:48 +0000 (22:26 -0500)]
ath5k: fix SWI calibration interrupt storm
The calibration period is now invoked by triggering a software
interrupt from within the ISR by ath5k_hw_calibration_poll()
instead of via a timer.
However, the calibration interval isn't initialized before
interrupts are enabled, so we can have a situation where an
interrupt occurs before the interval is assigned, so the
interval is actually negative. As a result, the ISR will
arm a software interrupt to schedule the tasklet, and then
rearm it when the SWI is processed, and so on, leading to a
softlockup at modprobe time.
Move the initialization order around so the calibration interval
is set before interrupts are active. Another possible fix
is to schedule the tasklet directly from the poll routine,
but I think there are additional plans for the SWI.
Signed-off-by: Bob Copeland <me@bobcopeland.com>
Cc: stable@kernel.org
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Felix Fietkau [Sun, 20 Dec 2009 18:07:09 +0000 (19:07 +0100)]
mac80211: fix ibss join with fixed-bssid
When fixed bssid is requested when joining an ibss network, incoming
beacons that match the configured bssid cause mac80211 to create new
sta entries, even before the ibss interface is in joined state.
When that happens, it fails to bring up the interface entirely, because
it checks for existing sta entries before joining.
This patch fixes this bug by refusing to create sta info entries before
the interface is fully operational.
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Samuel Ortiz [Fri, 18 Dec 2009 10:36:49 +0000 (11:36 +0100)]
libertas: Remove carrier signaling from the scan code
There is no reason to signal a carrier off when doing a 802.11 scan.
Cc: Holger Schurig <holgerschurig@gmail.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Acked-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Andrey Borzenkov [Tue, 22 Dec 2009 18:38:44 +0000 (21:38 +0300)]
orinoco: fix GFP_KERNEL in orinoco_set_key with interrupts disabled
orinoco_set_key is called from two places both with interrupts disabled
(under orinoco_lock). Use GFP_ATOMIC instead of GFP_KERNEL. Fixes following
warning:
[ 77.254109] WARNING: at /home/bor/src/linux-git/kernel/lockdep.c:2465 lockdep_trace_alloc+0x9a/0xa0()
[ 77.254109] Hardware name: PORTEGE 4000
[ 77.254109] Modules linked in: af_packet irnet ppp_generic slhc ircomm_tty ircomm binfmt_misc dm_mirror dm_region_hash dm_log dm_round_robin dm_multipath dm_mod loop nvram toshiba cryptomgr aead pcompress crypto_blkcipher michael_mic crypto_hash crypto_algapi orinoco_cs orinoco cfg80211 smsc_ircc2 pcmcia irda toshiba_acpi yenta_socket video i2c_ali1535 backlight rsrc_nonstatic ali_agp pcmcia_core psmouse output crc_ccitt i2c_core alim1535_wdt rfkill sg evdev ohci_hcd agpgart usbcore pata_ali libata reiserfs [last unloaded: scsi_wait_scan]
[ 77.254109] Pid: 2296, comm: wpa_supplicant Not tainted 2.6.32-1avb #1
[ 77.254109] Call Trace:
[ 77.254109] [<
c011f0ad>] warn_slowpath_common+0x6d/0xa0
[ 77.254109] [<
c014206a>] ? lockdep_trace_alloc+0x9a/0xa0
[ 77.254109] [<
c014206a>] ? lockdep_trace_alloc+0x9a/0xa0
[ 77.254109] [<
c011f0f5>] warn_slowpath_null+0x15/0x20
[ 77.254109] [<
c014206a>] lockdep_trace_alloc+0x9a/0xa0
[ 77.254109] [<
c018d296>] __kmalloc+0x36/0x130
[ 77.254109] [<
dffcb6a8>] ? orinoco_set_key+0x48/0x1c0 [orinoco]
[ 77.254109] [<
dffcb6a8>] orinoco_set_key+0x48/0x1c0 [orinoco]
[ 77.254109] [<
dffcb9fc>] orinoco_ioctl_set_encodeext+0x1dc/0x2d0 [orinoco]
[ 77.254109] [<
c035b117>] ioctl_standard_call+0x207/0x3b0
[ 77.254109] [<
dffcb820>] ? orinoco_ioctl_set_encodeext+0x0/0x2d0 [orinoco]
[ 77.254109] [<
c0307f1f>] ? rtnl_lock+0xf/0x20
[ 77.254109] [<
c0307f1f>] ? rtnl_lock+0xf/0x20
[ 77.254109] [<
c02fb115>] ? __dev_get_by_name+0x85/0xb0
[ 77.254109] [<
c035b616>] wext_handle_ioctl+0x176/0x200
[ 77.254109] [<
dffcb820>] ? orinoco_ioctl_set_encodeext+0x0/0x2d0 [orinoco]
[ 77.254109] [<
c030020f>] dev_ioctl+0x6af/0x730
[ 77.254109] [<
c02eec65>] ? move_addr_to_kernel+0x55/0x60
[ 77.254109] [<
c02eed59>] ? sys_sendto+0xe9/0x130
[ 77.254109] [<
c02ed77e>] sock_ioctl+0x7e/0x250
[ 77.254109] [<
c02ed700>] ? sock_ioctl+0x0/0x250
[ 77.254109] [<
c019cf4c>] vfs_ioctl+0x1c/0x70
[ 77.254109] [<
c019d1fa>] do_vfs_ioctl+0x6a/0x590
[ 77.254109] [<
c0178e50>] ? might_fault+0x90/0xa0
[ 77.254109] [<
c0178e0a>] ? might_fault+0x4a/0xa0
[ 77.254109] [<
c02ef90e>] ? sys_socketcall+0x17e/0x280
[ 77.254109] [<
c019d759>] sys_ioctl+0x39/0x60
[ 77.254109] [<
c0102e3b>] sysenter_do_call+0x12/0x32
[ 77.254109] ---[ end trace
95ef563548d21efd ]---
Signed-off-by: Andrey Borzenkov <arvidjaar@mail.ru>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Pekka Enberg [Sun, 27 Dec 2009 12:33:14 +0000 (14:33 +0200)]
SLAB: Fix lockdep annotation breakage
Commit
ce79ddc8e2376a9a93c7d42daf89bfcbb9187e62 ("SLAB: Fix lockdep annotations
for CPU hotplug") broke init_node_lock_keys() off-slab logic which causes
lockdep false positives.
Fix that up by reverting the logic back to original while keeping CPU hotplug
fixes intact.
Reported-and-tested-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Reported-and-tested-by: Andi Kleen <andi@firstfloor.org>
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Shaohua Li [Mon, 28 Dec 2009 12:18:44 +0000 (13:18 +0100)]
cfq-iosched: don't regard requests with long distance as close
seek_mean could be very big sometimes, using it as close criteria is meaningless
as this doen't improve any performance. So if it's big, let's fallback to
default value.
Reviewed-by: Corrado Zoccolo <czoccolo@gmail.com>
Signed-off-by: Shaohua Li<shaohua.li@intel.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Randy Dunlap [Mon, 21 Dec 2009 20:01:17 +0000 (12:01 -0800)]
tracing: Kconfig spelling fixes and cleanups
Fix filename reference (ftrace-implementation.txt ->
ftrace-design.txt).
Fix spelling, punctuation, grammar.
Fix help text indentation and line lengths to reduce need for
horizontal scrolling or larger window sizes.
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
LKML-Reference: <
20091221120117.
3fb49cdc.randy.dunlap@oracle.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Wenji Huang [Mon, 21 Dec 2009 09:52:55 +0000 (17:52 +0800)]
perf kmem: Fix statistics typo
Replace bytes_req with bytes_alloc.
Signed-off-by: Wenji Huang <wenji.huang@oracle.com>
Reviewed-by: Li Zefan <lizf@cn.fujitsu.com>
Cc: acme@redhat.com
LKML-Reference: <
1261389175-2227-1-git-send-email-wenji.huang@oracle.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Pekka Enberg [Mon, 28 Dec 2009 09:02:15 +0000 (11:02 +0200)]
x86, kmemcheck: Use KERN_WARNING for error reporting
As suggested by Vegard Nossum, use KERN_WARNING for error
reporting to make sure kmemcheck reports end up in syslog.
Suggested-by: Vegard Nossum <vegard.nossum@gmail.com>
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Cc: Andrew Morton <akpm@linux-foundation.org>
LKML-Reference: <
1261990935.4641.7.camel@penberg-laptop>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Heiko Carstens [Mon, 21 Dec 2009 12:02:24 +0000 (13:02 +0100)]
kprobes: Fix distinct type warning
Every time I see this:
kernel/kprobes.c: In function 'register_kretprobe':
kernel/kprobes.c:1038: warning: comparison of distinct pointer types lacks a cast
I'm wondering if something changed in common code and we need to
do something for s390. Apparently that's not the case.
Let's get rid of this annoying warning.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Acked-by: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
Cc: Masami Hiramatsu <mhiramat@redhat.com>
LKML-Reference: <
20091221120224.GA4471@osiris.boeblingen.de.ibm.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Pekka Enberg [Mon, 28 Dec 2009 08:26:59 +0000 (10:26 +0200)]
x86: Use KERN_DEFAULT log-level in __show_regs()
Andrew Morton reported a strange looking kmemcheck warning:
WARNING: kmemcheck: Caught 32-bit read from uninitialized memory (
ffff88004fba6c20)
0000000000000000310000000000000000000000000000002413000000c9ffff
u u u u u u u u u u u u u u u u i i i i i i i i u u u u u u u u
[<
ffffffff810af3aa>] kmemleak_scan+0x25a/0x540
[<
ffffffff810afbcb>] kmemleak_scan_thread+0x5b/0xe0
[<
ffffffff8104d0fe>] kthread+0x9e/0xb0
[<
ffffffff81003074>] kernel_thread_helper+0x4/0x10
[<
ffffffffffffffff>] 0xffffffffffffffff
The above printout is missing register dump completely. The
problem here is that the output comes from syslog which doesn't
show KERN_INFO log-level messages. We didn't see this before
because both of us were testing on 32-bit kernels which use the
_default_ log-level.
Fix that up by explicitly using KERN_DEFAULT log-level for
__show_regs() printks.
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Cc: Vegard Nossum <vegard.nossum@gmail.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Arjan van de Ven <arjan@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
LKML-Reference: <
1261988819.4641.2.camel@penberg-laptop>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Ingo Molnar [Mon, 28 Dec 2009 08:23:13 +0000 (09:23 +0100)]
Merge branch 'iommu/fixes' of git://git./linux/kernel/git/joro/linux-2.6-iommu into x86/urgent
Tim Blechmann [Sun, 27 Dec 2009 13:43:06 +0000 (14:43 +0100)]
perf: Rename perf_event_hw_event in design document
perf_event_hw_event has been renamed to perf_event_attr. The
design document was still using the old name, though.
Signed-off-by: Tim Blechmann <tim@klingt.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
LKML-Reference: <
4B37646A.90108@klingt.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Arnaldo Carvalho de Melo [Sun, 27 Dec 2009 23:36:58 +0000 (21:36 -0200)]
perf tools: Add missing header files to LIB_H Makefile variable
So that changes in them trigger rebuilds, like when we're doing
bisects.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frédéric Weisbecker <fweisbec@gmail.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
LKML-Reference: <
1261957026-15580-2-git-send-email-acme@infradead.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Arnaldo Carvalho de Melo [Sun, 27 Dec 2009 23:36:57 +0000 (21:36 -0200)]
perf record: We should fork only if a program was specified to run
IOW: Now 'perf record -a' works, this was a bug introduced in:
856e96608a72412d319e498a3a7c557571f811bd
"perf record: Properly synchronize child creation"
Also fix the -C usage, i.e. allow for profiling all the tasks in
one CPU.
Reported-by: Pekka Enberg <penberg@cs.helsinki.fi>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frédéric Weisbecker <fweisbec@gmail.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
LKML-Reference: <
1261957026-15580-1-git-send-email-acme@infradead.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Heiko Carstens [Fri, 18 Dec 2009 08:41:43 +0000 (09:41 +0100)]
KVM: get rid of kvm_create_vm() unused label warning on s390
arch/s390/kvm/../../../virt/kvm/kvm_main.c: In function 'kvm_create_vm':
arch/s390/kvm/../../../virt/kvm/kvm_main.c:409: warning: label 'out_err' defined but not used
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
Alexander Graf [Sat, 19 Dec 2009 17:07:39 +0000 (18:07 +0100)]
KVM: powerpc: Fix mtsrin in book3s_64 mmu
We were shifting the Ks/Kp/N bits one bit too far on mtsrin. It took
me some time to figure that out, so I also put in some debugging and a
comment explaining the conversion.
This fixes current OpenBIOS boot on PPC64 KVM.
Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Avi Kivity <avi@redhat.com>
Luck, Tony [Fri, 18 Dec 2009 01:05:03 +0000 (17:05 -0800)]
KVM: ia64: fix build breakage due to host spinlock change
Len Brown pointed out that allmodconfig is broken for
ia64 because of:
arch/ia64/kvm/vmm.c: In function 'vmm_spin_unlock':
arch/ia64/kvm/vmm.c:70: error: 'spinlock_t' has no member named 'raw_lock'
KVM has it's own spinlock routines. It should not depend on the base kernel
spinlock_t type (which changed when ia64 switched to ticket locks). Define
its own vmm_spinlock_t type.
Signed-off-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
Jan Kiszka [Sun, 6 Dec 2009 17:24:15 +0000 (18:24 +0100)]
KVM: x86: Extend KVM_SET_VCPU_EVENTS with selective updates
User space may not want to overwrite asynchronously changing VCPU event
states on write-back. So allow to skip nmi.pending and sipi_vector by
setting corresponding bits in the flags field of kvm_vcpu_events.
[avi: advertise the bits in KVM_GET_VCPU_EVENTS]
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
Marcelo Tosatti [Mon, 14 Dec 2009 19:37:35 +0000 (17:37 -0200)]
KVM: LAPIC: make sure IRR bitmap is scanned after vm load
The vcpus are initialized with irr_pending set to false, but
loading the LAPIC registers with pending IRR fails to reset
the irr_pending variable.
Cc: stable@kernel.org
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
Sheng Yang [Tue, 15 Dec 2009 02:28:07 +0000 (10:28 +0800)]
KVM: Fix possible circular locking in kvm_vm_ioctl_assign_device()
One possible order is:
KVM_CREATE_IRQCHIP ioctl(took kvm->lock) -> kvm_iobus_register_dev() ->
down_write(kvm->slots_lock).
The other one is in kvm_vm_ioctl_assign_device(), which take kvm->slots_lock
first, then kvm->lock.
Update the comment of lock order as well.
Observe it due to kernel locking debug warnings.
Cc: stable@kernel.org
Signed-off-by: Sheng Yang <sheng@linux.intel.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
Marcelo Tosatti [Sat, 5 Dec 2009 14:34:11 +0000 (12:34 -0200)]
KVM: MMU: remove prefault from invlpg handler
The invlpg prefault optimization breaks Windows 2008 R2 occasionally.
The visible effect is that the invlpg handler instantiates a pte which
is, microseconds later, written with a different gfn by another vcpu.
The OS could have other mechanisms to prevent a present translation from
being used, which the hypervisor is unaware of.
While the documentation states that the cpu is at liberty to prefetch tlb
entries, it looks like this is not heeded, so remove tlb prefetch from
invlpg.
Cc: stable@kernel.org
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
Takashi Iwai [Sun, 27 Dec 2009 12:36:25 +0000 (13:36 +0100)]
Merge branch 'fix/hda' into for-linus
Takashi Iwai [Sun, 27 Dec 2009 12:27:39 +0000 (13:27 +0100)]
ALSA: hda - Fix Oops at reloading beep devices
The recent change for supporting dynamic beep device allocation caused
a problem resulting in Oops at reloading the driver. Also, it ignores
the error from input device registration.
This patch fixes the wrong check in snd_hda_detach_beep_device(), and
returns an error when the input device registration fails properly.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Takashi Iwai [Sun, 27 Dec 2009 09:25:58 +0000 (10:25 +0100)]
ALSA: hda - Don't cache beep controls
The beep control verbs don't need to be cached for resume.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Ralf Baechle [Fri, 25 Dec 2009 23:30:02 +0000 (23:30 +0000)]
NET: XFRM: Fix spelling of neighbour.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
net/xfrm/xfrm_policy.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
Signed-off-by: David S. Miller <davem@davemloft.net>
Dan Carpenter [Wed, 23 Dec 2009 03:27:10 +0000 (03:27 +0000)]
bond_3ad.c avoid possible null deref
A few lines earlier we assume that best->slave could be either null or non-null so
we should check it here as well.
Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Daniel Drake [Thu, 24 Dec 2009 08:11:24 +0000 (08:11 +0000)]
Fix MAC address access in 3c507, ibmlana, pcnet32 and libertas
Commit
f001fde5eadd915f4858d22ed70d7040f48767cf changed
net_device.dev_addr from a 32-byte array to a pointer.
I found 4 ethernet drivers which rely on sizeof(dev_addr), which are now
only copying 4 bytes of the address information on 32bit systems.
Fix them to use ETH_ALEN.
Signed-off-by: Daniel Drake <dsd@laptop.org>
Reviewed-by: Jiri Pirko <jpirko@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Sandeep Gopalpet [Thu, 24 Dec 2009 03:13:06 +0000 (03:13 +0000)]
gianfar: Fix gianfar select_queue bogosity
The gfar_select_queue() function was used to set queue mapping
only for forwarding/bridging applications and the condition
for locally generated packets was completely ignored.
The solution is to remove the gfar_select_queue() function and
use skb_record_rx_queue to set queue mapping for
forwarding/bridging applications. This will ensure that in case of
forwarding/bridging applications txq = rxq will be selected and
skb_tx_hash will be used to pick up a txq for locally generated packets.
Signed-off-by: Sandeep Gopalpet <Sandeep.Kumar@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Vitaliy Gusev [Fri, 25 Dec 2009 07:17:43 +0000 (07:17 +0000)]
tun: use tun_sk instead container_of
Using macro tun_sk is more clear and shorter. However tun.c has tun_sk,
but doesn't use it.
Signed-off-by: Vitaliy Gusev <vgusev@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Anton Vorontsov [Thu, 24 Dec 2009 05:31:20 +0000 (05:31 +0000)]
ucc_geth: Don't needlessly change MAC settings in adjust_link()
If PHY doesn't have an IRQ, phylib would poll for link changes, and
would call adjust_link() every second. In that case we disable and
enable the controller every second.
Let's better check if there is actually anything changed, and, if so,
change the MAC settings.
Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Anton Vorontsov [Thu, 24 Dec 2009 05:31:05 +0000 (05:31 +0000)]
ucc_geth: Fix netdev watchdog triggering on link changes
Since commit
864fdf884e82bacbe8ca5e93bd43393a61d2e2b4 ("ucc_geth:
Fix hangs after switching from full to half duplex") ucc_geth driver
disables the controller during MAC configuration changes. Though,
disabling the controller might take quite awhile, and so the netdev
watchdog might get upset:
NETDEV WATCHDOG: eth2 (ucc_geth): transmit queue 0 timed out
------------[ cut here ]------------
Badness at
c02729a8 [verbose debug info unavailable]
NIP:
c02729a8 LR:
c02729a8 CTR:
c01b6088
REGS:
c0451c40 TRAP: 0700 Not tainted (2.6.32-trunk-8360e)
[...]
NIP [
c02729a8] dev_watchdog+0x280/0x290
LR [
c02729a8] dev_watchdog+0x280/0x290
Call Trace:
[
c0451cf0] [
c02729a8] dev_watchdog+0x280/0x290 (unreliable)
[
c0451d50] [
c00377c4] run_timer_softirq+0x164/0x224
[
c0451da0] [
c0032a38] __do_softirq+0xb8/0x13c
[
c0451df0] [
c00065cc] do_softirq+0xa0/0xac
[
c0451e00] [
c003280c] irq_exit+0x7c/0x9c
[
c0451e10] [
c00640c4] __ipipe_sync_stage+0x248/0x24c
[...]
This patch fixes the issue by detaching the netdev during the
time we change the configuration.
Reported-by: Lennart Sorensen <lsorense@csclub.uwaterloo.ca>
Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Tested-by: Lennart Sorensen <lsorense@csclub.uwaterloo.ca>
Cc: Stable <stable@vger.kernel.org> [2.6.32]
Signed-off-by: David S. Miller <davem@davemloft.net>
Anton Vorontsov [Thu, 24 Dec 2009 05:31:03 +0000 (05:31 +0000)]
ucc_geth: Fix empty TX queue processing
Following oops was seen with the ucc_geth driver:
Unable to handle kernel paging request for data at address 0x00000058
Faulting instruction address: 0xc024f2fc
Oops: Kernel access of bad area, sig: 11 [#1]
[...]
NIP [
c024f2fc] skb_recycle_check+0x14/0x100
LR [
e30aa0a4] ucc_geth_poll+0xd8/0x4e0 [ucc_geth_driver]
Call Trace:
[
df857d50] [
c000b03c] __ipipe_grab_irq+0x3c/0xa4 (unreliable)
[
df857d60] [
e30aa0a4] ucc_geth_poll+0xd8/0x4e0 [ucc_geth_driver]
[
df857dd0] [
c0258cf8] net_rx_action+0xf8/0x1b8
[
df857e10] [
c0032a38] __do_softirq+0xb8/0x13c
[
df857e60] [
c00065cc] do_softirq+0xa0/0xac
[...]
This is because ucc_geth_tx() tries to process an empty queue when
queues are logically stopped. Stopping the queues doesn't disable
polling, and since nowadays ucc_geth_tx() is actually called from
the polling routine, the oops above might pop up.
Fix this by removing 'netif_queue_stopped() == 0' check.
Reported-by: Lennart Sorensen <lsorense@csclub.uwaterloo.ca>
Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Tested-by: Lennart Sorensen <lsorense@csclub.uwaterloo.ca>
Cc: Stable <stable@vger.kernel.org> [2.6.32]
Signed-off-by: David S. Miller <davem@davemloft.net>
Henrique de Moraes Holschuh [Sun, 27 Dec 2009 00:52:17 +0000 (22:52 -0200)]
thinkpad-acpi: improve Kconfig help text
Document that rfkill and ALSA functionality exists, but requires the
subsystems to be available, and not modular if thinkpad-acpi is not
modular.
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Len Brown <len.brown@intel.com>
Henrique de Moraes Holschuh [Sun, 27 Dec 2009 00:52:16 +0000 (22:52 -0200)]
thinkpad-acpi: update volume subdriver documentation
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Len Brown <len.brown@intel.com>
Henrique de Moraes Holschuh [Sun, 27 Dec 2009 00:52:15 +0000 (22:52 -0200)]
thinkpad-acpi: make volume subdriver optional
Allow the user to choose through Kconfig if the Console Audio Control
interface (aka "volume subdriver") should be available or not.
This not only saves some memory, but also allows the thinkpad-acpi
driver to be built-in even if ALSA is modular when the console audio
control interface is not wanted.
This change fixes a build problem that is causing some annoyances, in
a way that doesn't disable the entire driver on kernels without ALSA
support.
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Amerigo Wang <amwang@redhat.com>
Cc: Helight Xu <helight.xu@gmail.com>
Cc: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>
Henrique de Moraes Holschuh [Sun, 27 Dec 2009 00:52:14 +0000 (22:52 -0200)]
thinkpad-acpi: don't fail to load the entire module due to ALSA problems
If we cannot create the ALSA mixer, it is a good reason to fail to
load the volume subdriver, and not to fail to load the entire module.
While at it, add more debugging messages, as the error paths are being
used a lot more than I'd expect, and it is failing to set up the ALSA
mixer on a number of ThinkPads.
Reported-by: Peter Jordan <usernetwork@gmx.info>
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Len Brown <len.brown@intel.com>
Henrique de Moraes Holschuh [Sun, 27 Dec 2009 00:52:13 +0000 (22:52 -0200)]
thinkpad-acpi: don't take the first ALSA slot by default
We don't want to be the first soundcard. We don't want to shift other
soundcards out of the way either, even if they load much later.
Ask ALSA to (by default) load us in one of the last three slots. This
can be overriden at will using the "index" parameter.
Reported-by: Whoopie <whoopie79@gmx.net>
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Len Brown <len.brown@intel.com>
Masanari Iida [Sat, 26 Dec 2009 15:09:45 +0000 (00:09 +0900)]
ALSA: Fix a typo in Procfile.txt
Fix a typo in Documentation/sound/alsa/Procfile.txt
Signed-off-by Masanari Iida <standby24x7@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Mark Brown [Sat, 26 Dec 2009 14:52:54 +0000 (14:52 +0000)]
Merge commit 'v2.6.33-rc2' into for-2.6.33
Peter Huewe [Sat, 26 Dec 2009 02:27:45 +0000 (03:27 +0100)]
ALSA: sound/arm: Fix build failure caused by missing struct aaci definition
This patch fixes a build failure introduced by the patch
ALSA: AACI: factor common hw_params logic into aaci_pcm_hw_params [1]
by adding/moving the aaci struct to the right position.
The patch mentioned above merged common source parts into one function,
but unfortunately left out the aaci struct and consequently caused a
build failure e.g. for arm versatile_config [2]
References:
[1] http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=
d3aee7996c30f928bbbbfd0994148e35d2e83084
[2] http://kisskb.ellerman.id.au/kisskb/buildresult/1893605/
Patch against Linus' tree.
Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Denis Kirjanov [Sat, 26 Dec 2009 02:48:33 +0000 (18:48 -0800)]
vxge: use DMA_BIT_MASK instead of plain values.
Use DMA_BIT_MASK instead of plain values.
Signed-off-by: Denis Kirjanov <kirjanov@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jamal Hadi Salim [Sat, 26 Dec 2009 01:30:22 +0000 (17:30 -0800)]
net: restore ip source validation
when using policy routing and the skb mark:
there are cases where a back path validation requires us
to use a different routing table for src ip validation than
the one used for mapping ingress dst ip.
One such a case is transparent proxying where we pretend to be
the destination system and therefore the local table
is used for incoming packets but possibly a main table would
be used on outbound.
Make the default behavior to allow the above and if users
need to turn on the symmetry via sysctl src_valid_mark
Signed-off-by: Jamal Hadi Salim <hadi@cyberus.ca>
Signed-off-by: David S. Miller <davem@davemloft.net>
Michael Chan [Sat, 26 Dec 2009 01:13:07 +0000 (17:13 -0800)]
bnx2x: Initialize cnic status block during chip reset
When the device is reset during MTU change, ring size change, or self
test, etc, the cnic status block needs to be properly initialized if
cnic is registered.
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
H. Peter Anvin [Fri, 25 Dec 2009 23:40:38 +0000 (15:40 -0800)]
x86, compress: Force i386 instructions for the decompressor
Recently, some distros have started shipping versions of gcc which
default to -march=i686. This breaks building kernels for pre-i686
machines, even if they have been selected in Kconfig, due to the
generation of CMOV instructions.
There isn't enough benefit to try to preserve the generation of these
instructions even when selected, so simply force -march=i386 for the
decompressor when building a 32-bit kernel.
Reported-and-tested-by: Chris Rankin <rankincj@yahoo.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
LKML-Reference: <219280.97558.qm@web52907.mail.re2.yahoo.com>
Takashi Iwai [Fri, 25 Dec 2009 21:56:20 +0000 (22:56 +0100)]
ALSA: hda - use snd_hda_jack_detect() again in patch_sigmatel.c
Use snd_hda_jack_detect() again for jack-sensing.
The triggering problem can be worked around with codec->no_trigger_sense
flag now.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Takashi Iwai [Fri, 25 Dec 2009 21:49:01 +0000 (22:49 +0100)]
ALSA: hda - Disable tigger at pin-sensing on AD codecs
Analog Device codecs seem to have problems with the triggering of
pin-sensing although their pincaps give the trigger requirements.
Some reported that constant CPU load on HP laptops with AD codecs.
For avoiding this regression, add a flag to codec struct to notify
explicitly that the codec doesn't suppot the trigger at pin-sensing.
Tested-by: Maciej Rutecki <maciej.rutecki@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Richard Kennedy [Fri, 25 Dec 2009 20:46:07 +0000 (15:46 -0500)]
ext4: return correct wbc.nr_to_write in ext4_da_writepages
When ext4_da_writepages increases the nr_to_write in writeback_control
then it must always re-base the return value. Originally there was a
(misguided) attempt prevent wbc.nr_to_write from going negative. In
fact, it's necessary to allow nr_to_write to be negative so that
wb_writeback() can correctly calculate how many pages were actually
written.
Signed-off-by: Richard Kennedy <richard@rsk.demon.co.uk>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Wu Fengguang [Fri, 25 Dec 2009 05:14:27 +0000 (13:14 +0800)]
ALSA: hda - HDMI sticky stream tag support
When we run the following commands in turn (with
CONFIG_SND_HDA_POWER_SAVE_DEFAULT=0),
speaker-test -Dhw:0,3 -c2 -twav # HDMI
speaker-test -Dhw:0,0 -c2 -twav # Analog
The second command will produce sound in the analog lineout _as well as_
HDMI sink. The root cause is, device 0 "reuses" the same stream tag that
was used by device 3, and the "intelhdmi - sticky stream id" patch leaves
the HDMI codec in a functional state. So the HDMI codec happily accepts
the audio samples which reuse its stream tag.
The proposed solution is to remember the last device each azx_dev was
assigned to, and prefer to
1) reuse the azx_dev (and hence the stream tag) the HDMI codec last used
2) or assign a never-used azx_dev for HDMI
With this patch and the above two speaker-test commands,
HDMI codec will use stream tag 8 and Analog codec will use 5.
The stream tag used by HDMI codec won't be reused by others, as long
as we don't run out of the 4 playback azx_dev's. The legacy Analog
codec will continue to use stream tag 5 because its device id is 0
(this is a bit tricky).
Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Guennadi Liakhovetski [Thu, 24 Dec 2009 00:17:46 +0000 (01:17 +0100)]
ALSA: Fix indentation in pcm_native.c
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Dmitry Torokhov [Fri, 25 Dec 2009 06:50:23 +0000 (22:50 -0800)]
Input: matrix-keypad - handle cases when GPIOs can't be wakeup sources
On certain boards not all GPIOs may be used as wakeup sources, in which
case some of enable_irq_wake() calls will fail. On resume calling
disable_irq_wake() will warn about unbalanced IRQ wake disable.
Solve this by checking whether enable_irq_wake() succeeded or not and
no not call disable_irq_wake() for these GPIOs/IRQs that have not been
enabled.
Reported-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Dmitry Torokhov [Fri, 25 Dec 2009 06:37:49 +0000 (22:37 -0800)]
Input: iforce - fix oops on device disconnect
Do not try to free iforce device when we closing input device; disconnect
is the only place where it should be deleted.
Reported-by: Johannes Ebke <johannes.ebke@physik.uni-muenchen.de>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Jari Vanhala [Fri, 25 Dec 2009 05:52:20 +0000 (21:52 -0800)]
Input: ff-memless - add notion of direction to for rumble effects
This adds simple direction calculation when combining effects. It's useful
to decide motor direction for rumble (vibrator).
Signed-off-by: Jari Vanhala <ext-jari.vanhala@nokia.com>
Acked-by: Anssi Hannula <anssi.hannula@iki.fi>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Dmitry Torokhov [Fri, 25 Dec 2009 05:44:19 +0000 (21:44 -0800)]
Input: ff-memless - another fix for signed to unsigned overflow
The commit
9e68177ef93b2f34eee5a1e1707bceef4b9ba69c changed 'gain' from
signed to unsigned to fix an issue with rumble effect calculation, however
it introduced problems when calculating constant effects. Having 'gain'
being unsigned int was an unfortunate choice since it dominates all
implicit type conversions causing everything to be treated as unsigned
int.
Let's change it back to signed int and simply add proper casts to rumble
effect calculations.
Reported-by: Gary Stein <lordcnidarian@gmail.com>
Acked-by: Anssi Hannula <anssi.hannula@iki.fi>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Jari Vanhala [Fri, 25 Dec 2009 05:52:19 +0000 (21:52 -0800)]
Input: ff-memless - start playing FF effects immediately
Instead of waiting for the next timer tick to start playing an effect
do it immediately. This mostly helps systems using low HZ setting.
Signed-off-by: Jari Vanhala <ext-jari.vanhala@nokia.com>
Acked-by: Anssi Hannula <anssi.hannula@iki.fi>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Dmitry Torokhov [Fri, 25 Dec 2009 05:40:43 +0000 (21:40 -0800)]
Input: serio - do not mark kseriod freezable anymore
We used to make kseriod freezable to prevent unnecessary attempts at
resuming keyboard and mouse before taking hibernation image when suspend
and hibernation were sharing PM operations. Now that they are separated
and we don't risk resuming during 'thaw' we don't need to freeze kseriod
anymore. This will allow us to start resetting mouse and keyboard a bit
earlier, before rest of the userspace comes back up.
Acked-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Dmitry Torokhov [Fri, 25 Dec 2009 05:40:24 +0000 (21:40 -0800)]
Input: speed up suspend/shutdown for PS/2 mice and keyboards
Instead of doing full-blown reset while suspending or shutting down
the box use lighter form of reset that should take less time.
Tested-by: Alan Stern <stern@rowland.harvard.edu>
Tested-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Tobias Klauser [Wed, 23 Dec 2009 12:57:47 +0000 (13:57 +0100)]
nilfs2: Storage class should be before const qualifier
The C99 specification states in section 6.11.5:
The placement of a storage-class specifier other than at the beginning
of the declaration specifiers in a declaration is an obsolescent
feature.
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Jiro SEKIBA [Sun, 6 Dec 2009 06:43:56 +0000 (15:43 +0900)]
nilfs2: trivial coding style fix
This is a trivial style fix patch to mend errors/warnings
reported by "checkpatch.pl --file".
Signed-off-by: Jiro SEKIBA <jir@unicus.jp>
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Fang Wenqi [Thu, 24 Dec 2009 22:51:42 +0000 (17:51 -0500)]
ext4: Update documentation to correct the inode_readahead_blks option name
Per commit
240799cd, the option name for readahead should be
inode_readahead_blks, not inode_readahead.
Signed-off-by: Fang Wenqi <antonf@turbolinux.com.cn>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Linus Torvalds [Thu, 24 Dec 2009 21:09:41 +0000 (13:09 -0800)]
Linux 2.6.33-rc2
Linus Torvalds [Thu, 24 Dec 2009 21:01:29 +0000 (13:01 -0800)]
Merge branch 'sysctl' of git://git./linux/kernel/git/ak/linux-misc-2.6
* 'sysctl' of git://git.kernel.org/pub/scm/linux/kernel/git/ak/linux-misc-2.6:
SYSCTL: Add a mutex to the page_alloc zone order sysctl
SYSCTL: Print binary sysctl warnings (nearly) only once