Jim Quinlan [Thu, 6 Sep 2012 15:36:56 +0000 (11:36 -0400)]
MIPS: Make irqflags.h functions preempt-safe for non-mipsr2 cpus
For non MIPSr2 processors, such as the BMIPS 5000, calls to
arch_local_irq_disable() and others may be preempted, and in doing
so a stale value may be restored to c0_status. This fix disables
preemption for such processors prior to the call and enables it
after the call.
Those functions that needed this fix have been "outlined" to
mips-atomic.c, as they are no longer good candidates for inlining.
This bug was observed in a BMIPS 5000, occuring once every few hours
in a continuous reboot test. It was traced to the write_lock_irq()
function which was being invoked in release_task() in exit.c.
By placing a number of "nops" inbetween the mfc0/mtc0 pair in
arch_local_irq_disable(), which is called by write_lock_irq(), we
were able to greatly increase the occurance of this bug. Similarly,
the application of this commit silenced the bug.
Signed-off-by: Jim Quinlan <jim2101024@gmail.com>
Cc: linux-mips@linux-mips.org
Cc: David Daney <ddaney.cavm@gmail.com>
Cc: Kevin Cernekee cernekee@gmail.com
Cc: Jim Quinlan <jim2101024@gmail.com>
Patchwork: https://patchwork.linux-mips.org/patch/4321/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Jim Quinlan [Thu, 6 Sep 2012 15:36:55 +0000 (11:36 -0400)]
MIPS: Remove irqflags.h dependency from bitops.h
The "else clause" of most functions in bitops.h invoked
raw_local_irq_{save,restore}() and in doing so had a dependency on
irqflags.h. This fix moves said code to bitops.c, removing the
dependency.
Signed-off-by: Jim Quinlan <jim2101024@gmail.com>
Cc: linux-mips@linux-mips.org
Cc: David Daney <ddaney.cavm@gmail.com>
Cc: Kevin Cernekee cernekee@gmail.com
Cc: Jim Quinlan <jim2101024@gmail.com>
Patchwork: https://patchwork.linux-mips.org/patch/4320/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Jim Quinlan [Thu, 6 Sep 2012 15:36:54 +0000 (11:36 -0400)]
MIPS: bitops.h: Change use of 'unsigned short' to 'int'
[ralf@linux-mips.org: No functional change but it's consistent with how
use types elsewhere in the code.]
Signed-off-by: Jim Quinlan <jim2101024@gmail.com>
Cc: linux-mips@linux-mips.org
Cc: David Daney <ddaney.cavm@gmail.com>
Cc: Kevin Cernekee cernekee@gmail.com
Cc: Jim Quinlan <jim2101024@gmail.com>
Patchwork: https://patchwork.linux-mips.org/patch/4319/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Ralf Baechle [Thu, 8 Nov 2012 23:28:59 +0000 (00:28 +0100)]
MIPS: compat: Delete now unused TIF_32BIT.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Ralf Baechle [Thu, 8 Nov 2012 22:59:31 +0000 (23:59 +0100)]
MIPS: compat: Implement is_compat_task() by testing for 32-bit address space.
So far is_compat_task() was testing for 32-bit registers if O32 support
was enabled and if O32 support was disabled but N32 enabled it was testing
for 32-bit address space. So if both O32 and N32 were enabled a N32
task was not considered a compat task, whops.
This still leaves potential cases where O32 and N32 need different treatment
unsolved. But that's another commit.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Ralf Baechle [Wed, 7 Nov 2012 11:54:21 +0000 (12:54 +0100)]
MIPS: compat: Fix use of TIF_32BIT_ADDR vs _TIF_32BIT_ADDR
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Linus Torvalds [Sun, 4 Nov 2012 19:07:39 +0000 (11:07 -0800)]
Linux 3.7-rc4
Linus Torvalds [Sat, 3 Nov 2012 22:27:21 +0000 (15:27 -0700)]
Merge tag 'nfs-for-3.7-4' of git://git.linux-nfs.org/projects/trondmy/linux-nfs
Pull NFS client bugfixes from Trond Myklebust:
- Fix a bunch of deadlock situations:
* State recovery can deadlock if we fail to release sequence ids
before scheduling the recovery thread.
* Calling deactivate_super() from an RPC workqueue thread can
deadlock because of the call to rpc_shutdown_client.
- Display the device name correctly in /proc/*/mounts
- Fix a number of incorrect error return values:
* When NFSv3 mounts fail due to a timeout.
* On NFSv4.1 backchannel setup failure
* On NFSv4 open access checks
- pnfs_find_alloc_layout() must check the layout pointer for NULL
- Fix a regression in the legacy DNS resolved
* tag 'nfs-for-3.7-4' of git://git.linux-nfs.org/projects/trondmy/linux-nfs:
NFS4: nfs4_opendata_access should return errno
NFSv4: Initialise the NFSv4.1 slot table highest_used_slotid correctly
SUNRPC: return proper errno from backchannel_rqst
NFS: add nfs_sb_deactive_async to avoid deadlock
nfs: Show original device name verbatim in /proc/*/mount{s,info}
nfsv3: Make v3 mounts fail with ETIMEDOUTs instead EIO on mountd timeouts
nfs: Check whether a layout pointer is NULL before free it
NFS: fix bug in legacy DNS resolver.
NFSv4: nfs4_locku_done must release the sequence id
NFSv4.1: We must release the sequence id when we fail to get a session slot
NFS: Wait for session recovery to finish before returning
Linus Torvalds [Sat, 3 Nov 2012 22:25:14 +0000 (15:25 -0700)]
Merge branch 'release' of git://git./linux/kernel/git/rzhang/linux
Pull thermal management & ACPI update from Zhang Rui,
Ho humm. Normally these things go through Len. But it's just three
small fixes, I guess I can pull directly too.
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux:
exynos4_tmu_driver_ids should be exynos_tmu_driver_ids.
ACPI video: Ignore errors after _DOD evaluation.
thermal: solve compilation errors in rcar_thermal
Linus Torvalds [Sat, 3 Nov 2012 22:14:54 +0000 (15:14 -0700)]
Merge branch 'i2c-embedded/for-current' of git://git.pengutronix.de/git/wsa/linux
Pull i2c embedded fixes from Wolfram Sang:
"Two patches are usual stuff.
The bigger patch is needed to correct a wrong decision made in this
merge window. We hoped to get the PIOQUEUE mode in the mxs driver
working with DMA, but it turned out to be too broken (leading to data
loss), so we now think it is best to remove it entirely and work only
with DMA now. The patch should be in 3.7. IMO, so users never get
the chance to use both modes in parallel."
* 'i2c-embedded/for-current' of git://git.pengutronix.de/git/wsa/linux:
i2c: tegra: set irq name as device name
i2c-nomadik: Fixup clock handling
i2c: mxs: remove broken PIOQUEUE support
Linus Torvalds [Sat, 3 Nov 2012 22:13:49 +0000 (15:13 -0700)]
Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
Pull drm fixes from Dave Airlie:
"Scattered selection of fixes:
- radeon: load detect fixes from SuSE/AMD
- intel: misc i830, sdvo regression, vesafb kickoff ums fix
- exynos: maintainers entry update + fixes
- udl: fix stride scanout issue
it's slightly bigger than I'd probably like, but nothing looked
dangerous enough to hold off on."
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
drm/udl: fix stride issues scanning out stride != width*bpp
drm/radeon: add load detection support for ext DAC on R200 (v2)
DRM/radeon: For single CRTC GPUs move handling of CRTC_CRT_ON to crtc_dpms().
DRM/Radeon: Fix TV DAC Load Detection for single CRTC chips.
DRM/Radeon: Clean up code in TV DAC load detection.
drm/radeon: fix ATPX function documentation
drivers/gpu/drm/radeon/evergreen_cs.c: Remove unnecessary semicolon
DRM/Radeon: On DVI-I use Load Detection when EDID is bogus.
DRM/Radeon: Fix primary DAC Load Detection for RV100 chips.
DRM/Radeon: Fix Load Detection on legacy primary DAC.
drm: exynos: removed warning due to missing typecast for mixer driver data
drm/exynos: add support for ARCH_MULTIPLATFORM
MAINTAINERS: Add git repository for Exynos DRM
drm/exynos: fix display on issue
drm/i915: Only kick out vesafb if we takeover the fbcon with KMS
drm/i915: be less verbose about inability to provide vendor backlight
drm/i915: clear the entire sdvo infoframe buffer
drm/i915: VGA needs to be on pipe A on i830M
drm/i915: fix overlay on i830M
Linus Torvalds [Sat, 3 Nov 2012 03:48:41 +0000 (20:48 -0700)]
Merge git://git./linux/kernel/git/davem/net
Pull networking fixes from David Miller:
"First post-Sandy pull request"
1) Fix antenna gain handling and initialization of chan->max_reg_power
in wireless, from Felix Fietkau.
2) Fix nexthop handling in H.232 conntrack helper, from Julian
Anastasov.
3) Only process 80211 mesh config header in certain kinds of frames,
from Javier Cardona.
4) 80211 management frame header length needs to be validated, from
Johannes Berg.
5) Don't access free'd SKBs in ath9k driver, from Felix Fietkay.
6) Test for permanent state correctly in VXLAN driver, from Stephen
Hemminger.
7) BNX2X bug fixes from Yaniv Rosner and Dmitry Kravkov.
8) Fix off by one errors in bonding, from Nikolay ALeksandrov.
9) Fix divide by zero in TCP-Illinois congestion control. From Jesper
Dangaard Brouer.
10) TCP metrics code says "Yo dawg, I heard you like sizeof, so I did a
sizeof of a sizeof, so you can size your size" Fix from Julian
Anastasov.
11) Several drivers do mdiobus_free without first doing an
mdiobus_unregister leading to stray pointer references. Fix from
Peter Senna Tschudin.
12) Fix OOPS in l2tp_eth_create() error path, it's another danling
pointer kinda situation. Fix from Tom Parkin.
13) Hardware driven by the vmxnet driver can't handle larger than 16K
fragments, so split them up when necessary. From Eric Dumazet.
14) Handle zero length data length in tcp_send_rcvq() properly. Fix
from Pavel Emelyanov.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (38 commits)
tcp-repair: Handle zero-length data put in rcv queue
vmxnet3: must split too big fragments
l2tp: fix oops in l2tp_eth_create() error path
cxgb4: Fix unable to get UP event from the LLD
drivers/net/phy/mdio-bitbang.c: Call mdiobus_unregister before mdiobus_free
drivers/net/ethernet/nxp/lpc_eth.c: Call mdiobus_unregister before mdiobus_free
bnx2x: fix HW initialization using fw 7.8.x
tcp: Fix double sizeof in new tcp_metrics code
net: fix divide by zero in tcp algorithm illinois
net: sctp: Fix typo in net/sctp
bonding: fix second off-by-one error
bonding: fix off-by-one error
bnx2x: Disable FCoE for 57840 since not yet supported by FW
bnx2x: Fix no link on 577xx 10G-baseT
bnx2x: Fix unrecognized SFP+ module after driver is loaded
bnx2x: Fix potential incorrect link speed provision
bnx2x: Restore global registers back to default.
bnx2x: Fix link down in 57712 following LFA
bnx2x: Fix 57810 1G-KR link against certain switches.
ixgbe: PTP get_ts_info missing software support
...
Pavel Emelyanov [Mon, 29 Oct 2012 05:05:33 +0000 (05:05 +0000)]
tcp-repair: Handle zero-length data put in rcv queue
When sending data into a tcp socket in repair state we should check
for the amount of data being 0 explicitly. Otherwise we'll have an skb
with seq == end_seq in rcv queue, but tcp doesn't expect this to happen
(in particular a warn_on in tcp_recvmsg shoots).
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
Reported-by: Giorgos Mavrikas <gmavrikas@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Eric Dumazet [Mon, 29 Oct 2012 07:30:49 +0000 (07:30 +0000)]
vmxnet3: must split too big fragments
vmxnet3 has a 16Kbytes limit per tx descriptor, that happened to work
as long as we provided PAGE_SIZE fragments.
Our stack can now build larger fragments, so we need to split them to
the 16kbytes boundary.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: jongman heo <jongman.heo@samsung.com>
Tested-by: jongman heo <jongman.heo@samsung.com>
Cc: Shreyas Bhatewara <sbhatewara@vmware.com>
Reviewed-by: Bhavesh Davda <bhavesh@vmware.com>
Signed-off-by: Shreyas Bhatewara <sbhatewara@vmware.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Tom Parkin [Mon, 29 Oct 2012 23:41:48 +0000 (23:41 +0000)]
l2tp: fix oops in l2tp_eth_create() error path
When creating an L2TPv3 Ethernet session, if register_netdev() should fail for
any reason (for example, automatic naming for "l2tpeth%d" interfaces hits the
32k-interface limit), the netdev is freed in the error path. However, the
l2tp_eth_sess structure's dev pointer is left uncleared, and this results in
l2tp_eth_delete() then attempting to unregister the same netdev later in the
session teardown. This results in an oops.
To avoid this, clear the session dev pointer in the error path.
Signed-off-by: Tom Parkin <tparkin@katalix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jonghwan Choi [Tue, 23 Oct 2012 06:54:42 +0000 (14:54 +0800)]
exynos4_tmu_driver_ids should be exynos_tmu_driver_ids.
Signed-off-by: Jonghwan Choi <jhbird.choi@samsung.com>
Reviewed-by: Amit Daniel Kachhap <amit.kachhap@linaro.org>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Igor Murzov [Sat, 13 Oct 2012 00:41:25 +0000 (04:41 +0400)]
ACPI video: Ignore errors after _DOD evaluation.
There are systems where video module known to work fine regardless
of broken _DOD and ignoring returned value here doesn't cause
any issues later. This should fix brightness controls on some laptops.
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=47861
Signed-off-by: Igor Murzov <e-mail@date.by>
Reviewed-by: Sergey V <sftp.mtuci@gmail.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Devendra Naga [Wed, 31 Oct 2012 08:46:10 +0000 (17:46 +0900)]
thermal: solve compilation errors in rcar_thermal
following were the errors reported
drivers/thermal/rcar_thermal.c: In function ‘rcar_thermal_probe’:
drivers/thermal/rcar_thermal.c:214:10: warning: passing argument 3 of ‘thermal_zone_device_register’ makes integer from pointer without a cast [enabled by default]
include/linux/thermal.h:166:29: note: expected ‘int’ but argument is of type ‘struct rcar_thermal_priv *’
drivers/thermal/rcar_thermal.c:214:10: error: too few arguments to function ‘thermal_zone_device_register’
include/linux/thermal.h:166:29: note: declared here
make[1]: *** [drivers/thermal/rcar_thermal.o] Error 1
make: *** [drivers/thermal/rcar_thermal.o] Error 2
with gcc version 4.6.3 (Ubuntu/Linaro 4.6.3-1ubuntu5)
Signed-off-by: Devendra Naga <develkernel412222@gmail.com>
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Vipul Pandya [Mon, 29 Oct 2012 02:02:36 +0000 (02:02 +0000)]
cxgb4: Fix unable to get UP event from the LLD
If T4 configuration file gets loaded from the /lib/firmware/cxgb4/ directory
then offload capabilities of the cards were getting disabled during
initialization. Hence ULDs do not get an UP event from the LLD.
Signed-off-by: Jay Hernandez <jay@chelsio.com>
Signed-off-by: Vipul Pandya <vipul@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Peter Senna Tschudin [Sun, 28 Oct 2012 06:12:01 +0000 (06:12 +0000)]
drivers/net/phy/mdio-bitbang.c: Call mdiobus_unregister before mdiobus_free
Based on commit
b27393aecf66199f5ddad37c302d3e0cfadbe6c0
Calling mdiobus_free without calling mdiobus_unregister causes
BUG_ON(). This patch fixes the issue.
The semantic patch that found this issue(http://coccinelle.lip6.fr/):
// <smpl>
@@
expression E;
@@
... when != mdiobus_unregister(E);
+ mdiobus_unregister(E);
mdiobus_free(E);
// </smpl>
Signed-off-by: Peter Senna Tschudin <peter.senna@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Peter Senna Tschudin [Sun, 28 Oct 2012 06:12:00 +0000 (06:12 +0000)]
drivers/net/ethernet/nxp/lpc_eth.c: Call mdiobus_unregister before mdiobus_free
Based on commit
b27393aecf66199f5ddad37c302d3e0cfadbe6c0
Calling mdiobus_free without calling mdiobus_unregister causes
BUG_ON(). This patch fixes the issue.
The semantic patch that found this issue(http://coccinelle.lip6.fr/):
// <smpl>
@@
expression E;
@@
... when != mdiobus_unregister(E);
+ mdiobus_unregister(E);
mdiobus_free(E);
// </smpl>
Signed-off-by: Peter Senna Tschudin <peter.senna@gmail.com>
Tested-by: Roland Stigge <stigge@antcom.de>
Tested-by: Alexandre Pereira da Silva <aletes.xgr@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Dmitry Kravkov [Sun, 28 Oct 2012 21:59:04 +0000 (21:59 +0000)]
bnx2x: fix HW initialization using fw 7.8.x
Since commit
96bed4b9 (use FW 7.8.2) BRB HW block needs to be
initialized using fw values for all devices.
Otherwise ETS on 57712/578xx will not work.
Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com>
Signed-off-by: Ariel Elior <ariele@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Linus Torvalds [Fri, 2 Nov 2012 23:56:39 +0000 (16:56 -0700)]
Merge tag 'pm-for-3.7-rc4' of git://git./linux/kernel/git/rafael/linux-pm
Pull power management update from Rafael J. Wysocki:
"Change the email address of the powernow-k8 maintainer."
* tag 'pm-for-3.7-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
cpufreq / powernow-k8: Change maintainer's email address
Linus Torvalds [Fri, 2 Nov 2012 23:11:15 +0000 (16:11 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/dtor/input
Pull input subsystem fixes from Dmitry Torokhov:
"Just a few driver fixes."
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: tsc40 - remove wrong announcement of pressure support
Input: lpc32xx-keys - select INPUT_MATRIXKMAP
Input: pxa27x_keypad - clear pending interrupts on keypad config
Input: wacom - correct bad Cintiq 24HD check
Input: wacom - add INPUT_PROP_DIRECT flag to Cintiq 24HD
Input: egalax_ts - get gpio from devicetree
Weston Andros Adamson [Fri, 2 Nov 2012 22:00:56 +0000 (18:00 -0400)]
NFS4: nfs4_opendata_access should return errno
Return errno - not an NFS4ERR_. This worked because NFS4ERR_ACCESS == EACCES.
Signed-off-by: Weston Andros Adamson <dros@netapp.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Linus Torvalds [Fri, 2 Nov 2012 22:08:20 +0000 (15:08 -0700)]
Merge git://git./linux/kernel/git/nab/target-pending
Pull more scsi target fixes from Nicholas Bellinger:
"This series is a second round of target fixes for v3.7-rc4 that have
come into target-devel over the last days, and are important enough to
be applied ASAP.
All are being CC'ed to stable. The most important two are:
- target: Re-add explict zeroing of INQUIRY bounce buffer memory to
fix a regression for handling zero-length payloads, a bug that went
during v3.7-rc1, and hit >= v3.6.3 stable. (nab + paolo)
- iscsi-target: Fix a long-standing missed R2T wakeup race in TX
thread processing when using a single queue slot. (Roland)
Thanks to Roland & PureStorage team for helping to track down this
long standing race with iscsi-target single queue slot operation.
Also, the tcm_fc(FCoE) regression bug that was observed recently with
-rc2 code has also been resolved with the cancel_delayed_work() return
bugfix (commit
c0158ca64da5: "workqueue: cancel_delayed_work() should
return %false if work item is idle") now in -rc3. Thanks again to Yi
Zou, MDR, Robert Love @ Intel for helping to track this down."
* git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending:
target: Fix incorrect usage of nested IRQ spinlocks in ABORT_TASK path
iscsi-target: Fix missed wakeup race in TX thread
target: Avoid integer overflow in se_dev_align_max_sectors()
target: Don't return success from module_init() if setup fails
target: Re-add explict zeroing of INQUIRY bounce buffer memory
Linus Torvalds [Fri, 2 Nov 2012 20:27:52 +0000 (13:27 -0700)]
Merge tag 'hwmon-for-linus' of git://git./linux/kernel/git/groeck/linux-staging
Pull hwmon fixes from Guenter Roeck:
"An e-mail address update, and fix a compile error on SPARC"
* tag 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
hwmon: Only include of_match_table with CONFIG_OF_GPIO
hwmon, fam15h_power: Change email address, MAINTAINERS entry
Linus Torvalds [Fri, 2 Nov 2012 20:27:01 +0000 (13:27 -0700)]
Merge tag 'frv-fixes-
20121102' of git://git./linux/kernel/git/dhowells/linux-frv
Pull FRV fixes from David Howells:
"A collection of small fixes for the FRV architecture."
* tag 'frv-fixes-
20121102' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-frv:
frv: fix the broken preempt
frv: switch to saner kernel_execve() semantics
FRV: Fix the new-style kernel_thread() stuff
FRV: Fix the preemption handling
FRV: gcc-4.1.2 also inlines weak functions
FRV: Don't objcopy the GNU build_id note
FRV: Add missing linux/export.h #inclusions
Linus Torvalds [Fri, 2 Nov 2012 20:26:11 +0000 (13:26 -0700)]
Merge tag 'stable/for-linus-3.7-rc4-tag' of git://git./linux/kernel/git/konrad/xen
Pull Xen bugfixes from Konrad Rzeszutek Wilk:
- Use appropriate macros instead of hand-rolling our own (ARM).
- Fixes if FB/KBD closed unexpectedly.
- Fix memory leak in /dev/gntdev ioctl calls.
- Fix overflow check in xenbus_file_write.
- Document cleanup.
- Performance optimization when migrating guests.
* tag 'stable/for-linus-3.7-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen:
xen/mmu: Use Xen specific TLB flush instead of the generic one.
xen/arm: use the __HVC macro
xen/xenbus: fix overflow check in xenbus_file_write()
xen-kbdfront: handle backend CLOSED without CLOSING
xen-fbfront: handle backend CLOSED without CLOSING
xen/gntdev: don't leak memory from IOCTL_GNTDEV_MAP_GRANT_REF
x86: remove obsolete comment from asm/xen/hypervisor.h
Sasha Levin [Tue, 30 Oct 2012 18:45:57 +0000 (14:45 -0400)]
hashtable: introduce a small and naive hashtable
This hashtable implementation is using hlist buckets to provide a simple
hashtable to prevent it from getting reimplemented all over the kernel.
Signed-off-by: Sasha Levin <levinsasha928@gmail.com>
[ Merging this now, so that subsystems can start applying Sasha's
patches that use this - Linus ]
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Al Viro [Fri, 2 Nov 2012 16:05:44 +0000 (12:05 -0400)]
frv: fix the broken preempt
Just get %icc2 into the state we would have after local_irq_disable()
and physical IRQ having happened since then. Then we can simply
use preempt_schedule_irq() and be done with the whole mess.
Acked-by: David Howells <dhowells@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Mon, 15 Oct 2012 14:53:17 +0000 (10:53 -0400)]
frv: switch to saner kernel_execve() semantics
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
David Howells [Fri, 2 Nov 2012 13:20:43 +0000 (13:20 +0000)]
FRV: Fix the new-style kernel_thread() stuff
The kernel_thread() changes for FRV don't work, and FRV fails to boot,
starting with:
commit
02ce496f152df87be081a64796498942c433a2fd
Author: Al Viro <viro@zeniv.linux.org.uk>
Date: Tue Sep 18 22:18:51 2012 -0400
Subject: frv: split ret_from_fork, simplify kernel_thread() a lot
The problem is that the userspace registers are completely cleared when a
kernel thread is created and all subsequent user threads are then copied from
that. Unfortunately, however, the TBR and PSR registers are restored from the
pt_regs and the values they should be set to are clobbered by the memset.
Instead, copy across the old user registers as normal, and then merely alter
GR8 and GR9 in it if we're going to execute a kernel thread.
Signed-off-by: David Howells <dhowells@redhat.com>
David Howells [Fri, 2 Nov 2012 13:20:42 +0000 (13:20 +0000)]
FRV: Fix the preemption handling
Fix the preemption handling in FRV code where the PREEMPT_ACTIVE value is
incorrectly loaded into the threadinfo flags rather than the threadinfo
preemption count.
Unfortunately, the code cannot be simply converted to use
preempt_schedule_irq() as is because FRV uses virtual interrupt disablement to
cut down on the cost of actually disabling interrupts and thus
local_irq_enable() doesn't actually enable interrupts.
Reported-by: Al Viro <viro@ZenIV.linux.org.uk>
Signed-off-by: David Howells <dhowells@redhat.com>
cc: Al Viro <viro@ZenIV.linux.org.uk>
David Howells [Fri, 2 Nov 2012 13:20:42 +0000 (13:20 +0000)]
FRV: gcc-4.1.2 also inlines weak functions
gcc-4.1.2 inlines weak functions, which causes FRV to fail when the dummy
thread_info_cache_init() gets inlined into start_kernel().
Signed-off-by: David Howells <dhowells@redhat.com>
David Howells [Fri, 2 Nov 2012 13:20:42 +0000 (13:20 +0000)]
FRV: Don't objcopy the GNU build_id note
Don't let objcopy transfer the GNU build_id note into the loadable image as it
is located at address 0 and the image ends up >3G in size.
Signed-off-by: David Howells <dhowells@redhat.com>
David Howells [Fri, 2 Nov 2012 13:20:42 +0000 (13:20 +0000)]
FRV: Add missing linux/export.h #inclusions
Add missing linux/export.h #inclusions to the FRV arch.
Signed-off-by: David Howells <dhowells@redhat.com>
Laxman Dewangan [Thu, 1 Nov 2012 16:38:14 +0000 (22:08 +0530)]
i2c: tegra: set irq name as device name
When watching the irqs name of tegra i2c, all instances
irq name shows as tegra_i2c.
Passing the device name properly to have the irq names with
instance like tegra-i2c.0, tegra-i2c.1 etc.
Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Acked-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Philippe Begnic [Wed, 10 Oct 2012 11:02:26 +0000 (13:02 +0200)]
i2c-nomadik: Fixup clock handling
Make sure to clk_prepare as well as clk_enable.
Signed-off-by: Philippe Begnic <philippe.begnic@stericsson.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Wolfram Sang [Fri, 12 Oct 2012 10:55:16 +0000 (11:55 +0100)]
i2c: mxs: remove broken PIOQUEUE support
This I2C master can do DMA and PIOQUEUE (PIO with FIFO). Originally,
only PIOQUEUE was supported and it had issues, then DMA support was added
this cycle. The original intention was to keep PIOQUEUE since it has
less overhead what is nice for small transfers. However, runtime
switching between PIOQEUE and DMA depending on the transfer size never
worked despite a lot of trying. Since PIOQUEUE mode itself was flaky
(polling at places where interrupts failed to work) and the
implementation also imposed a size limit for transfers, it is best to
remove the support, so users don't fall over its limitations. It also
makes the driver a lot cleaner and more robust. If somebody really wants
less overhead, plain PIO mode could still be implemented with the
addidtional advantage that this mode is also available on MX23, too.
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Reviewed-by: Marek Vasut <marex@denx.de>
Linus Torvalds [Fri, 2 Nov 2012 00:48:19 +0000 (17:48 -0700)]
Merge tag 'xtensa-next-
20121101' of git://github.com/czankel/xtensa-linux
Pull Xtensa fixes from Chris Zankel:
"Some important bug fixes.
With the change to uapi, there was a bug introduced that results in an
empty syscall table (mult-inclusion bug). Switching to the generic
thread/execve allowed us to fix a bug we had in vfork()."
* tag 'xtensa-next-
20121101' of git://github.com/czankel/xtensa-linux:
xtensa: switch to generic sys_execve()
xtensa: switch to generic kernel_execve()
xtensa: switch to generic kernel_thread()
xtensa: reset windowbase/windowstart when cloning the VM
xtensa: use physical addresses for bus addresses
xtensa: allow multi-inclusion for uapi/unistd.h
Dave Airlie [Thu, 1 Nov 2012 03:47:09 +0000 (13:47 +1000)]
drm/udl: fix stride issues scanning out stride != width*bpp
When buffer sharing with the i915 and using a 1680x1050 monitor,
the i915 gives is a 6912 buffer for the 6720 width, the code doesn't
render this properly as it uses one value to set the base address for
reading from the vmap and for where to start on the device.
This fixes it by calculating the values correctly for the device and
for the pixmap. No idea how I haven't seen this before now.
Cc: stable@vger.kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
Jamie Lentin [Thu, 1 Nov 2012 23:55:43 +0000 (23:55 +0000)]
hwmon: Only include of_match_table with CONFIG_OF_GPIO
The following fixes build errors on sparc. Without any DT support,
of_match_ptr is NULL and the below is a no-op. However, if just
CONFIG_OF is defined then so is of_match_ptr.
All useful parts of the gpio-fan DT support rely on CONFIG_OF_GPIO
anyway, so of_match_table should too.
Signed-off-by: Jamie Lentin <jm@lentin.co.uk>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Dave Airlie [Fri, 2 Nov 2012 00:30:37 +0000 (10:30 +1000)]
Merge branch 'exynos-drm-fixes' of git://git./linux/kernel/git/daeinki/drm-exynos into drm-fixes
Inki writes:
"As I posted before, we have added a new git repository for Exynos drm
to MAINTAINERS file so change it to new one like below,
from git://git.infradead.org/users/kmpark/linux-samsung
to git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos
And this pull request includes the following:
- fix display on issue when user requested dpms mode changing.
- add git repository for Exynos drm to MAINTAINERS file.
- add support for ARCH_MULTIPLATFORM.
- and code clean."
* 'exynos-drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos:
drm: exynos: removed warning due to missing typecast for mixer driver data
drm/exynos: add support for ARCH_MULTIPLATFORM
MAINTAINERS: Add git repository for Exynos DRM
drm/exynos: fix display on issue
Dave Airlie [Fri, 2 Nov 2012 00:29:22 +0000 (10:29 +1000)]
Merge branch 'drm-fixes-3.7' of git://people.freedesktop.org/~agd5f/linux into drm-fixes
Alex writes:
"This request is mostly load detection fixes from Egbert and me."
* 'drm-fixes-3.7' of git://people.freedesktop.org/~agd5f/linux:
drm/radeon: add load detection support for ext DAC on R200 (v2)
DRM/radeon: For single CRTC GPUs move handling of CRTC_CRT_ON to crtc_dpms().
DRM/Radeon: Fix TV DAC Load Detection for single CRTC chips.
DRM/Radeon: Clean up code in TV DAC load detection.
drm/radeon: fix ATPX function documentation
drivers/gpu/drm/radeon/evergreen_cs.c: Remove unnecessary semicolon
DRM/Radeon: On DVI-I use Load Detection when EDID is bogus.
DRM/Radeon: Fix primary DAC Load Detection for RV100 chips.
DRM/Radeon: Fix Load Detection on legacy primary DAC.
Dave Airlie [Fri, 2 Nov 2012 00:26:03 +0000 (10:26 +1000)]
Merge branch 'drm-intel-fixes' of git://people.freedesktop.org/~danvet/drm-intel into drm-fixes
Daniel Vetter writes"
Nothing big at all for -fixes, just small stuff:
- Two patches to fix bugs on i830M
- ums regression fixer due to kicking firmeware fbs (Chris)
- tune down a too loud warning (Jani)
- be more careful with sdvo infoframes, which fixes a long-standing
sdvo-hdmi regression"
* 'drm-intel-fixes' of git://people.freedesktop.org/~danvet/drm-intel:
drm/i915: Only kick out vesafb if we takeover the fbcon with KMS
drm/i915: be less verbose about inability to provide vendor backlight
drm/i915: clear the entire sdvo infoframe buffer
drm/i915: VGA needs to be on pipe A on i830M
drm/i915: fix overlay on i830M
Trond Myklebust [Mon, 29 Oct 2012 20:48:40 +0000 (16:48 -0400)]
NFSv4: Initialise the NFSv4.1 slot table highest_used_slotid correctly
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Julian Anastasov [Tue, 30 Oct 2012 12:03:09 +0000 (12:03 +0000)]
tcp: Fix double sizeof in new tcp_metrics code
Fix double sizeof when parsing IPv6 address from
user space because it breaks get/del by specific IPv6 address.
Problem noticed by David Binderman:
https://bugzilla.kernel.org/show_bug.cgi?id=49171
Signed-off-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jesper Dangaard Brouer [Wed, 31 Oct 2012 02:45:32 +0000 (02:45 +0000)]
net: fix divide by zero in tcp algorithm illinois
Reading TCP stats when using TCP Illinois congestion control algorithm
can cause a divide by zero kernel oops.
The division by zero occur in tcp_illinois_info() at:
do_div(t, ca->cnt_rtt);
where ca->cnt_rtt can become zero (when rtt_reset is called)
Steps to Reproduce:
1. Register tcp_illinois:
# sysctl -w net.ipv4.tcp_congestion_control=illinois
2. Monitor internal TCP information via command "ss -i"
# watch -d ss -i
3. Establish new TCP conn to machine
Either it fails at the initial conn, or else it needs to wait
for a loss or a reset.
This is only related to reading stats. The function avg_delay() also
performs the same divide, but is guarded with a (ca->cnt_rtt > 0) at its
calling point in update_params(). Thus, simply fix tcp_illinois_info().
Function tcp_illinois_info() / get_info() is called without
socket lock. Thus, eliminate any race condition on ca->cnt_rtt
by using a local stack variable. Simply reuse info.tcpv_rttcnt,
as its already set to ca->cnt_rtt.
Function avg_delay() is not affected by this race condition, as
its called with the socket lock.
Cc: Petr Matousek <pmatouse@redhat.com>
Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Acked-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Masanari Iida [Wed, 31 Oct 2012 05:48:19 +0000 (05:48 +0000)]
net: sctp: Fix typo in net/sctp
Correct spelling typo in net/sctp/socket.c
Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Acked-by: Vlad Yasevich <vyasevich@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
nikolay@redhat.com [Wed, 31 Oct 2012 06:03:52 +0000 (06:03 +0000)]
bonding: fix second off-by-one error
Fix off-by-one error because IFNAMSIZ == 16 and when this
code gets executed we stick a NULL byte where we should not.
How to reproduce:
with CONFIG_CC_STACKPROTECTOR=y (otherwise it may pass by silently)
modprobe bonding; echo 1 > /sys/class/net/bond0/bonding/mode;
echo "
AAAAAAAAAAAAAAAA" > /sys/class/net/bond0/bonding/active_slave;
Signed-off-by: Nikolay Aleksandrov <nikolay@redhat.com>
Note: Sorry for the second patch but I missed this one while checking
the file. You can squash them into one patch.
Signed-off-by: David S. Miller <davem@davemloft.net>
nikolay@redhat.com [Wed, 31 Oct 2012 04:42:51 +0000 (04:42 +0000)]
bonding: fix off-by-one error
Fix off-by-one error because IFNAMSIZ == 16 and when this
code gets executed we stick a NULL byte where we should not.
How to reproduce:
with CONFIG_CC_STACKPROTECTOR=y (otherwise it may pass by silently)
modprobe bonding; echo 1 > /sys/class/net/bond0/bonding/mode;
echo "
AAAAAAAAAAAAAAAA" > /sys/class/net/bond0/bonding/primary;
Signed-off-by: Nikolay Aleksandrov <nikolay@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Weston Andros Adamson [Thu, 1 Nov 2012 15:21:53 +0000 (11:21 -0400)]
SUNRPC: return proper errno from backchannel_rqst
The one and only caller (in fs/nfs/nfs4client.c) uses the result
as an errno and would have interpreted an error as EPERM.
Signed-off-by: Weston Andros Adamson <dros@netapp.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Dmitry Kravkov [Wed, 31 Oct 2012 05:46:58 +0000 (05:46 +0000)]
bnx2x: Disable FCoE for 57840 since not yet supported by FW
Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Yaniv Rosner [Wed, 31 Oct 2012 05:46:57 +0000 (05:46 +0000)]
bnx2x: Fix no link on 577xx 10G-baseT
Since the Warpcore supports various link types, need to set only the correct
supported modes for XFI which is the serdes interface for the 10G-baseT PHY.
Signed-off-by: Yaniv Rosner <yanivr@broadcom.com>
Signed-off-by: Barak Witkowski <barak@broadcom.com>
Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Yaniv Rosner [Wed, 31 Oct 2012 05:46:56 +0000 (05:46 +0000)]
bnx2x: Fix unrecognized SFP+ module after driver is loaded
When SFP+ module is plugged in after driver is already loaded, it may not be
recognized, so set SFP module recognition time up to 300ms, without resetting
the module power in the middle.
Signed-off-by: Yaniv Rosner <yanivr@broadcom.com>
Signed-off-by: Barak Witkowski <barak@broadcom.com>
Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Yaniv Rosner [Wed, 31 Oct 2012 05:46:55 +0000 (05:46 +0000)]
bnx2x: Fix potential incorrect link speed provision
Fix possible incorrect link speed provision following rapid link speed change.
Clear link speed mask after each link change, and not only after link down.
Signed-off-by: Yaniv Rosner <yanivr@broadcom.com>
Signed-off-by: Barak Witkowski <barak@broadcom.com>
Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Yaniv Rosner [Wed, 31 Oct 2012 05:46:54 +0000 (05:46 +0000)]
bnx2x: Restore global registers back to default.
Several KR registers were not set correctly back to default after
loopback test, so set those global registers over the global WC lane (zero)
rather than the current lane.
Signed-off-by: Yaniv Rosner <yanivr@broadcom.com>
Signed-off-by: Barak Witkowski <barak@broadcom.com>
Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Yaniv Rosner [Wed, 31 Oct 2012 05:46:53 +0000 (05:46 +0000)]
bnx2x: Fix link down in 57712 following LFA
In case of link flap avoidance between PXE boot and bnx2x, set the appropriate
PHY DEVAD even if LFA kicks in.
Signed-off-by: Yaniv Rosner <yanivr@broadcom.com>
Signed-off-by: Barak Witkowski <barak@broadcom.com>
Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Yaniv Rosner [Wed, 31 Oct 2012 05:46:52 +0000 (05:46 +0000)]
bnx2x: Fix 57810 1G-KR link against certain switches.
Fix 1G KR link by restoring CL72 misc control register to default value rather
than 0.
Signed-off-by: Yaniv Rosner <yanivr@broadcom.com>
Signed-off-by: Barak Witkowski <barak@broadcom.com>
Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Linus Torvalds [Thu, 1 Nov 2012 15:27:02 +0000 (08:27 -0700)]
Merge git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull KVM fix from Marcelo Tosatti.
* git://git.kernel.org/pub/scm/virt/kvm/kvm:
KVM: x86: fix vcpu->mmio_fragments overflow
Jacob Keller [Wed, 31 Oct 2012 22:30:54 +0000 (22:30 +0000)]
ixgbe: PTP get_ts_info missing software support
This patch corrects the ethtool get_ts_info functon which did not state that
software timestamping was supported, even though it is.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
CC: Stable <stable@vger.kernel.org> [3.5]
Tested-by: Stephen Ko <stephen.s.ko@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Alex Deucher [Wed, 31 Oct 2012 15:51:03 +0000 (11:51 -0400)]
drm/radeon: add load detection support for ext DAC on R200 (v2)
The R200 asics use an external DAC for the secondary DAC.
The current KMS code tries to use code for the integrated
TV DAC for R200 which leads to unpredictable results since
R200 does not have an integrated TV DAC. This patch ports
the external DAC load detection support from the UMS
driver to KMS.
v2: fix typo in loop break logic
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Egbert Eich <eich@suse.de>
Egbert Eich [Mon, 29 Oct 2012 12:46:48 +0000 (13:46 +0100)]
DRM/radeon: For single CRTC GPUs move handling of CRTC_CRT_ON to crtc_dpms().
On all dual CRTC GPUs the CRTC_CRT_ON in the RADEON_CRTC_EXT_CNTL register
controls the CRTC of the primary DAC. Therefore it is set in the DAC DMPS
function.
This is different for GPU's with a single CRTC but a primary and a
TV DAC: here it controls the single CRTC no matter where it is routed.
Therefore we set it here. This avoids an elaborate on/off state tracking
since both primary_dac_dpms() and tv_dac_dpms() functions would have
to touch this bit.
On single CRTC GPUs with just one DAC it's irrelevant where this bit
is handled.
agd5f: fix warning
Signed-off-by: Egbert Eich <eich@suse.de>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Egbert Eich [Tue, 30 Oct 2012 16:42:27 +0000 (17:42 +0100)]
DRM/Radeon: Fix TV DAC Load Detection for single CRTC chips.
The RN50 has a TV DAC but only a single CRTC. For load detection this
DAC is controlled by the primary CRTC.
Signed-off-by: Egbert Eich <eich@suse.de>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Egbert Eich [Tue, 30 Oct 2012 16:42:26 +0000 (17:42 +0100)]
DRM/Radeon: Clean up code in TV DAC load detection.
Signed-off-by: Egbert Eich <eich@suse.de>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Igor Murzov [Thu, 25 Oct 2012 13:09:00 +0000 (17:09 +0400)]
drm/radeon: fix ATPX function documentation
Fix a copy&pasted documentation.
Signed-off-by: Igor Murzov <e-mail@date.by>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Peter Senna Tschudin [Wed, 24 Oct 2012 14:42:26 +0000 (16:42 +0200)]
drivers/gpu/drm/radeon/evergreen_cs.c: Remove unnecessary semicolon
A simplified version of the semantic match that finds this problem is as
follows: (http://coccinelle.lip6.fr/)
// <smpl>
@r1@
statement S;
position p,p1;
@@
S@p1;@p
@script:python r2@
p << r1.p;
p1 << r1.p1;
@@
if p[0].line != p1[0].line_end:
cocci.include_match(False)
@@
position r1.p;
@@
-;@p
// </smpl>
Signed-off-by: Peter Senna Tschudin <peter.senna@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Egbert Eich [Wed, 24 Oct 2012 16:32:52 +0000 (18:32 +0200)]
DRM/Radeon: On DVI-I use Load Detection when EDID is bogus.
The Radeon driver uses the analog/digital flag to determine if the
DAC or the TMDS encoder should be enabled on a DVI-I connector.
If the EDID is bogus this flag is no longer reliable. This fix
adds a fallback to DAC load detection to determine if anything
is connected to the DAC. If not and a (bogus) EDID is found it
assumes a digital display is connected.
This works around problems with some crappy IPMI devices using
Radeon ES1000.
Signed-off-by: Egbert Eich <eich@suse.de>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Egbert Eich [Wed, 24 Oct 2012 16:31:19 +0000 (18:31 +0200)]
DRM/Radeon: Fix primary DAC Load Detection for RV100 chips.
For Radeon 7500 ATI recommends a DAC_FORCE value of 0x1ac. This value
works better on ES1000 (RV100) chips, too, as it doesn't produce any false
positives on any cards I have tested. Therefore let's assume that this
value is good for all RV100 and RV200 chipset generations.
Signed-off-by: Egbert Eich <eich@suse.de>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Egbert Eich [Wed, 24 Oct 2012 16:29:49 +0000 (18:29 +0200)]
DRM/Radeon: Fix Load Detection on legacy primary DAC.
An uninitialized variable led to broken load detection.
Signed-off-by: Egbert Eich <eich@suse.de>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Steve Hodgson [Wed, 31 Oct 2012 17:24:02 +0000 (10:24 -0700)]
target: Fix incorrect usage of nested IRQ spinlocks in ABORT_TASK path
This patch changes core_tmr_abort_task() to use spin_lock -> spin_unlock
around se_cmd->t_state_lock while spin_lock_irqsave is held via
se_sess->sess_cmd_lock.
Signed-off-by: Steve Hodgson <steve@purestorage.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
Cc: stable@vger.kernel.org
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Roland Dreier [Wed, 31 Oct 2012 16:16:46 +0000 (09:16 -0700)]
iscsi-target: Fix missed wakeup race in TX thread
The sleeping code in iscsi_target_tx_thread() is susceptible to the classic
missed wakeup race:
- TX thread finishes handle_immediate_queue() and handle_response_queue(),
thinks both queues are empty.
- Another thread adds a queue entry and does wake_up_process(), which does
nothing because the TX thread is still awake.
- TX thread does schedule_timeout() and sleeps forever.
In practice this can kill an iSCSI connection if for example an initiator
does single-threaded writes and the target misses the wakeup window when
queueing an R2T; in this case the connection will be stuck until the
initiator loses patience and does some task management operation (or kills
the connection entirely).
Fix this by converting to wait_event_interruptible(), which does not
suffer from this sort of race.
Signed-off-by: Roland Dreier <roland@purestorage.com>
Cc: Andy Grover <agrover@redhat.com>
Cc: Hannes Reinecke <hare@suse.de>
Cc: Christoph Hellwig <hch@lst.de>
Cc: stable@vger.kernel.org
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Roland Dreier [Wed, 31 Oct 2012 16:16:45 +0000 (09:16 -0700)]
target: Avoid integer overflow in se_dev_align_max_sectors()
The expression (max_sectors * block_size) might overflow a u32
(indeed, since iblock sets max_hw_sectors to UINT_MAX, it is
guaranteed to overflow and end up with a much-too-small result in many
common cases). Fix this by doing an equivalent calculation that
doesn't require multiplication.
While we're touching this code, avoid splitting a printk format across
two lines and use pr_info(...) instead of printk(KERN_INFO ...).
Signed-off-by: Roland Dreier <roland@purestorage.com>
Cc: stable@vger.kernel.org
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Roland Dreier [Wed, 31 Oct 2012 16:16:44 +0000 (09:16 -0700)]
target: Don't return success from module_init() if setup fails
If the call to core_dev_release_virtual_lun0() fails, then nothing
sets ret to anything other than 0, so even though everything is
torn down and freed, target_core_init_configfs() will seem to succeed
and the module will be loaded. Fix this by passing the return value
on up the chain.
Signed-off-by: Roland Dreier <roland@purestorage.com>
Cc: stable@vger.kernel.org
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Nicholas Bellinger [Thu, 1 Nov 2012 05:04:26 +0000 (22:04 -0700)]
target: Re-add explict zeroing of INQUIRY bounce buffer memory
This patch fixes a regression in spc_emulate_inquiry() code where the
local scope bounce buffer was no longer getting it's memory zeroed,
causing various problems with SCSI initiators that depend upon areas
of INQUIRY EVPD=0x83 payload having been zeroed.
This bug was introduced with the following v3.7-rc1 patch + CC'ed
stable commit:
commit
ffe7b0e9326d9c68f5688bef691dd49f1e0d3651
Author: Paolo Bonzini <pbonzini@redhat.com>
Date: Fri Sep 7 17:30:38 2012 +0200
target: support zero allocation length in INQUIRY
Go ahead and re-add the missing memset of bounce buffer memory to be
copied into the outgoing se_cmd descriptor kmapped SGL payload.
Reported-by: Kelsey Prantis <kelsey.prantis@intel.com>
Cc: Kelsey Prantis <kelsey.prantis@intel.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Andy Grover <agrover@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Linus Torvalds [Wed, 31 Oct 2012 22:42:08 +0000 (15:42 -0700)]
Merge git://git./linux/kernel/git/nab/target-pending
Pull scsi target fixes from Nicholas Bellinger:
"These are the current target pending fixes headed for v3.7-rc4 code.
This includes the following highlights:
- Fix long-standing qla2xxx target bug where certain fc_port_t state
transitions could cause the internal session b-tree list to become
out-of-sync. (Roland)
- Fix task management double free of se_cmd descriptor in exception
path for users of target_submit_tmr(). (nab)
- Re-introduce simple NOP emulation of REZERO_UNIT, SEEK_6, and
SEEK_10 SCSI-2 commands in order to support legacy initiators that
still require them. (Bernhard)
Note these three patches are also CC'ed to stable.
Also, there a couple of outstanding (external) regressions that are
still being tracked down for tcm_fc(FCoE) and tcm_vhost fabrics for
v3.7.0 code, so please expect another PULL as these issues identified
-> resolved."
* git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending:
target: reintroduce some obsolete SCSI-2 commands
target: Fix double-free of se_cmd in target_complete_tmr_failure
qla2xxx: Update target lookup session tables when a target session changes
tcm_qla2xxx: Format VPD page 83h SCSI name string according to SPC
qla2xxx: Add missing ->vport_slock while calling qlt_update_vp_map
Linus Torvalds [Wed, 31 Oct 2012 22:40:21 +0000 (15:40 -0700)]
Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
Pull nouveau fixes from Dave Airlie:
"Just a nouveau set, since we have a couple of reports on lkml and
dri-devel of regressions that this should fix I sent it along on its
own."
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
drm/nouveau: headless mode by default if pci class != vga display
drm/nouveau: resurrect headless mode since rework
drm/nv50/fb: prevent oops on chipsets without compression tags
drm/nouveau: allow creation of zero-sized mm
drm/nouveau/i2c: fix typo when checking nvio i2c port validity
drm/nouveau: silence modesetting spam on pre-gf8 chipsets
Linus Torvalds [Wed, 31 Oct 2012 22:39:28 +0000 (15:39 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/jikos/hid
Pull HID updates from Jiri Kosina:
"This contains fixes for two devices by Jiri Slaby and Xianhan Yu, new
device IDs for MacBook Pro 10,2 from Dirk Hohndel and generic
multitouch code fix from Alan Cox."
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid:
HID: Add support for the MacBook Pro 10,2 keyboard / touchpad
HID: multitouch: fix maxcontacts problem on GeneralTouch
HID: multitouch: put the case in the right switch statement
HID: microsoft: fix invalid rdesc for 3k kbd
Linus Torvalds [Wed, 31 Oct 2012 22:38:32 +0000 (15:38 -0700)]
Merge tag 'sound-3.7' of git://git./linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"This contains unexpectedly many changes in a wide range due to the
fixes for races at disconnection of USB audio devices. In the end, we
end up covering fairly core parts of sound subsystem.
Other than that, just a few usual small fixes."
* tag 'sound-3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: ice1724: Fix rate setup after resume
ALSA: Avoid endless sleep after disconnect
ALSA: Add a reference counter to card instance
ALSA: usb-audio: Fix races at disconnection in mixer_quirks.c
ALSA: usb-audio: Use rwsem for disconnect protection
ALSA: usb-audio: Fix races at disconnection
ALSA: PCM: Fix some races at disconnection
ASoC: omap-dmic: Correct functional clock name
ASoC: zoom2: Fix compile error by including correct header files
ALSA: hda - Fix mute-LED setup for HP dv5 laptop
Xiao Guangrong [Wed, 24 Oct 2012 06:07:59 +0000 (14:07 +0800)]
KVM: x86: fix vcpu->mmio_fragments overflow
After commit
b3356bf0dbb349 (KVM: emulator: optimize "rep ins" handling),
the pieces of io data can be collected and write them to the guest memory
or MMIO together
Unfortunately, kvm splits the mmio access into 8 bytes and store them to
vcpu->mmio_fragments. If the guest uses "rep ins" to move large data, it
will cause vcpu->mmio_fragments overflow
The bug can be exposed by isapc (-M isapc):
[23154.818733] general protection fault: 0000 [#1] SMP DEBUG_PAGEALLOC
[ ......]
[23154.858083] Call Trace:
[23154.859874] [<
ffffffffa04f0e17>] kvm_get_cr8+0x1d/0x28 [kvm]
[23154.861677] [<
ffffffffa04fa6d4>] kvm_arch_vcpu_ioctl_run+0xcda/0xe45 [kvm]
[23154.863604] [<
ffffffffa04f5a1a>] ? kvm_arch_vcpu_load+0x17b/0x180 [kvm]
Actually, we can use one mmio_fragment to store a large mmio access then
split it when we pass the mmio-exit-info to userspace. After that, we only
need two entries to store mmio info for the cross-mmio pages access
Signed-off-by: Xiao Guangrong <xiaoguangrong@linux.vnet.ibm.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Weston Andros Adamson [Tue, 30 Oct 2012 21:01:39 +0000 (17:01 -0400)]
NFS: add nfs_sb_deactive_async to avoid deadlock
Use nfs_sb_deactive_async instead of nfs_sb_deactive when in a workqueue
context. This avoids a deadlock where rpc_shutdown_client loops forever
in a workqueue kworker context, trying to kill all RPC tasks associated with
the client, while one or more of these tasks have already been assigned to the
same kworker (and will never run rpc_exit_task).
This approach is needed because RPC tasks that have already been assigned
to a kworker by queue_work cannot be canceled, as explained in the comment
for workqueue.c:insert_wq_barrier.
Signed-off-by: Weston Andros Adamson <dros@netapp.com>
[Trond: add module_get/put.]
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Ben Hutchings [Sun, 21 Oct 2012 18:23:52 +0000 (19:23 +0100)]
nfs: Show original device name verbatim in /proc/*/mount{s,info}
Since commit
c7f404b ('vfs: new superblock methods to override
/proc/*/mount{s,info}'), nfs_path() is used to generate the mounted
device name reported back to userland.
nfs_path() always generates a trailing slash when the given dentry is
the root of an NFS mount, but userland may expect the original device
name to be returned verbatim (as it used to be). Make this
canonicalisation optional and change the callers accordingly.
[jrnieder@gmail.com: use flag instead of bool argument]
Reported-and-tested-by: Chris Hiestand <chiestand@salk.edu>
Reference: http://bugs.debian.org/669314
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Cc: <stable@vger.kernel.org> # v2.6.39+
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Scott Mayhew [Tue, 16 Oct 2012 17:22:19 +0000 (13:22 -0400)]
nfsv3: Make v3 mounts fail with ETIMEDOUTs instead EIO on mountd timeouts
In very busy v3 environment, rpc.mountd can respond to the NULL
procedure but not the MNT procedure in a timely manner causing
the MNT procedure to time out. The problem is the mount system
call returns EIO which causes the mount to fail, instead of
ETIMEDOUT, which would cause the mount to be retried.
This patch sets the RPC_TASK_SOFT|RPC_TASK_TIMEOUT flags to
the rpc_call_sync() call in nfs_mount() which causes
ETIMEDOUT to be returned on timed out connections.
Signed-off-by: Steve Dickson <steved@redhat.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Cc: stable@vger.kernel.org
Yanchuan Nian [Wed, 31 Oct 2012 08:05:48 +0000 (16:05 +0800)]
nfs: Check whether a layout pointer is NULL before free it
The new layout pointer in pnfs_find_alloc_layout() may be NULL because of
out of memory. we must do some check work, otherwise pnfs_free_layout_hdr()
will go wrong because it can not deal with a NULL pointer.
Signed-off-by: Yanchuan Nian <ycnian@gmail.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
NeilBrown [Wed, 31 Oct 2012 01:16:01 +0000 (12:16 +1100)]
NFS: fix bug in legacy DNS resolver.
The DNS resolver's use of the sunrpc cache involves a 'ttl' number
(relative) rather that a timeout (absolute). This confused me when
I wrote
commit
c5b29f885afe890f953f7f23424045cdad31d3e4
"sunrpc: use seconds since boot in expiry cache"
and I managed to break it. The effect is that any TTL is interpreted
as 0, and nothing useful gets into the cache.
This patch removes the use of get_expiry() - which really expects an
expiry time - and uses get_uint() instead, treating the int correctly
as a ttl.
This fixes a regression that has been present since 2.6.37, causing
certain NFS accesses in certain environments to incorrectly fail.
Reported-by: Chuck Lever <chuck.lever@oracle.com>
Tested-by: Chuck Lever <chuck.lever@oracle.com>
Cc: stable@vger.kernel.org
Signed-off-by: NeilBrown <neilb@suse.de>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Andreas Herrmann [Tue, 30 Oct 2012 23:30:38 +0000 (00:30 +0100)]
cpufreq / powernow-k8: Change maintainer's email address
Change the Andreas' email address in drivers/cpufreq/powernow-k8.c.
Signed-off-by: Andreas Herrmann <herrmann.der.user@googlemail.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Trond Myklebust [Mon, 29 Oct 2012 22:53:23 +0000 (18:53 -0400)]
NFSv4: nfs4_locku_done must release the sequence id
If the state recovery machinery is triggered by the call to
nfs4_async_handle_error() then we can deadlock.
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Cc: stable@vger.kernel.org
Trond Myklebust [Mon, 29 Oct 2012 22:37:40 +0000 (18:37 -0400)]
NFSv4.1: We must release the sequence id when we fail to get a session slot
If we do not release the sequence id in cases where we fail to get a
session slot, then we can deadlock if we hit a recovery scenario.
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Cc: stable@vger.kernel.org
David S. Miller [Wed, 31 Oct 2012 18:59:01 +0000 (14:59 -0400)]
Merge branch 'for-davem' of git://git./linux/kernel/git/linville/wireless
John W. Linville says:
====================
This is a batch of fixes intended for 3.7...
The biggest portion of this is a pull request from Johannes Berg:
"Please pull my mac80211.git tree per below to get a number of fixes. I
have included a patch from Antonio to fix a memcpy overrun, Felix's
patches for the antenna gain/tx power issues, a few mesh-related fixes
from Javier for mac80211 and my own patches to not access data that
might not be present in an skb at all as well as a patch (the duplicate
IE check one) to make mac80211 forward-compatible with potential future
spec extensions that use the same IE multiple times.
It's a bit bigger than I'd like maybe, but I think all of these are
worthwhile fixes at this point."
In addition...
Felix Fietkau fixes an ath9k use-after-free issue.
Stanislaw Gruszka adds a valid value check to rt2800.
Sven Eckelmann adds a check to only check a TID value in a BlockAck, for
frames that could be either a BlockAck or a normal Ack.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Wed, 31 Oct 2012 18:54:15 +0000 (14:54 -0400)]
Merge branch 'master' of git://1984.lsi.us.es/nf
Pablo Neira Ayuso says:
====================
The following patchset contains fixes for your net tree, two of them
are due to relatively recent changes, one has been a longstanding bug,
they are:
* Fix incorrect usage of rt_gateway in the H.323 helper, from
Julian Anastasov.
* Skip re-route in nf_nat code for ICMP traffic. If CONFIG_XFRM is
enabled, we waste cycles to look up for the route again. This problem
seems to be there since really long time. From Ulrich Weber.
* Fix mismatching section in nf_conntrack_reasm, from Hein Tibosch.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
stephen hemminger [Fri, 26 Oct 2012 06:24:34 +0000 (06:24 +0000)]
vxlan: don't expire permanent entries
VXLAN confused flag versus bitmap on state.
Based on part of a earlier patch by David Stevens.
Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Bryan Schumaker [Tue, 30 Oct 2012 20:06:35 +0000 (16:06 -0400)]
NFS: Wait for session recovery to finish before returning
Currently, we will schedule session recovery and then return to the
caller of nfs4_handle_exception. This works for most cases, but causes
a hang on the following test case:
Client Server
------ ------
Open file over NFS v4.1
Write to file
Expire client
Try to lock file
The server will return NFS4ERR_BADSESSION, prompting the client to
schedule recovery. However, the client will continue placing lock
attempts and the open recovery never seems to be scheduled. The
simplest solution is to wait for session recovery to run before retrying
the lock.
Signed-off-by: Bryan Schumaker <bjschuma@netapp.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Cc: stable@vger.kernel.org
John W. Linville [Wed, 31 Oct 2012 17:10:01 +0000 (13:10 -0400)]
Merge branch 'master' of git://git./linux/kernel/git/linville/wireless into for-davem
Konrad Rzeszutek Wilk [Wed, 31 Oct 2012 16:38:31 +0000 (12:38 -0400)]
xen/mmu: Use Xen specific TLB flush instead of the generic one.
As Mukesh explained it, the MMUEXT_TLB_FLUSH_ALL allows the
hypervisor to do a TLB flush on all active vCPUs. If instead
we were using the generic one (which ends up being xen_flush_tlb)
we end up making the MMUEXT_TLB_FLUSH_LOCAL hypercall. But
before we make that hypercall the kernel will IPI all of the
vCPUs (even those that were asleep from the hypervisor
perspective). The end result is that we needlessly wake them
up and do a TLB flush when we can just let the hypervisor
do it correctly.
This patch gives around 50% speed improvement when migrating
idle guest's from one host to another.
Oracle-bug:
14630170
CC: stable@vger.kernel.org
Tested-by: Jingjie Jiang <jingjie.jiang@oracle.com>
Suggested-by: Mukesh Rathor <mukesh.rathor@oracle.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Rahul Sharma [Wed, 31 Oct 2012 04:06:26 +0000 (09:36 +0530)]
drm: exynos: removed warning due to missing typecast for mixer driver data
Removing the warning by adding proper type casting where local pointer
variable of type mixer driver data is assigned with void pointer.
Signed-off-by: Rahul Sharma <rahul.sharma@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Rob Clark [Mon, 29 Oct 2012 08:31:13 +0000 (09:31 +0100)]
drm/exynos: add support for ARCH_MULTIPLATFORM
Exynos does not seem to have any dependency on anything from
platform headers so just needs Kconfig updated to build in
ARCH_MULTIPLATFORM builds.
Signed-off-by: Rob Clark <rob@ti.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Inki Dae [Tue, 30 Oct 2012 07:08:05 +0000 (16:08 +0900)]
MAINTAINERS: Add git repository for Exynos DRM
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Inki Dae [Thu, 18 Oct 2012 09:59:55 +0000 (18:59 +0900)]
drm/exynos: fix display on issue
When crtc_funcs->dpms callback is called, exynos_crtc->dpms
and exynos_encoder->dpms are changed to new mode. But if user
requests dpms mode operation, OFF -> ON, when crtc's dpms callback
is called, exynos_encoder->dpms is also changed to ON. This
makes encoder's dpms callback call be ignored so display power
couldn't become on again.
This patch removes exynos_encoder->dpms changing and adds 'updated'
variable to exynos_drm_encoder structure to avoid duplicated overlay
updating.
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Dirk Hohndel [Tue, 30 Oct 2012 18:11:48 +0000 (11:11 -0700)]
HID: Add support for the MacBook Pro 10,2 keyboard / touchpad
This enables the existing drivers for keyboard and touchpad with the new
USB IDs found on the MBP 13" Reasonable Resolution (also known as the
Retina Display).
Added entries to both keyboard and mouse ignore lists.
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>