dmatest: fix max channels handling

The check for reaching max_channels is short circuited by 'continuing'
after successfully adding a channel.

[ Impact: make the 'max_channels' module parameter actually have an effect ]

Cc: <stable@kernel.org>
Reported-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
crypto: ixp4xx - check firmware for crypto support

 - the loaded firmware may not support crypto at all or
   only support DES and 3DES but not AES or
   support DES, 3DES and AES.

 - in case of no crypto support of the firmware, the module load will fail.
 - in case of missing AES support, the AES algorithms are not registered
   and a warning is printed during module load.

Signed-off-by: Christian Hohnstaedt <chohnstaedt@innominate.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
crypto: eseqiv - Fix IV generation for sync algorithms

If crypto_ablkcipher_encrypt() returns synchronous,
eseqiv_complete2() is called even if req->giv is already the
pointer to the generated IV. The generated IV is overwritten
with some random data in this case. This patch fixes this by
calling eseqiv_complete2() just if the generated IV has to be
copied to req->giv.

Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
crypto: api - Fix algorithm module auto-loading

The commit a760a6656e6f00bb0144a42a048cf0266646e22c (crypto:
api - Fix module load deadlock with fallback algorithms) broke
the auto-loading of algorithms that require fallbacks.  The
problem is that the fallback mask check is missing an and which
cauess bits that should be considered to interfere with the
result.

Reported-by: Chuck Ebbert <cebbert@redhat.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
crypto: padlock - Revert aes-all alias to aes

Since the padlock-aes driver doesn't require a fallback (it's
only padlock-sha that does), it should use the aes alias rather
than aes-all so that ones that do need a fallback can use it.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
CRIS: Merge machine dependent boot/compressed and boot/rescue

Merge the machine dependent boot directories for v10 and v32.
This avoids some code duplication and eases the way for further
merging later on.

Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
CRISv32: Remove obsolete vcs_hook.o from Makefile

On Sun, Apr 19, 2009 at 10:01:50PM +0200, Robert P. J. Day wrote:
> ./arch/cris/arch-v32/kernel/Makefile:obj-$(CONFIG_ETRAXFS_SIM) += vcs_hook.o
>
>   there appears to be no definition of ETRAXFS_SIM anywhere.

There hasn't been a vcs_hook.c file here for ages.
Remove the line from the Makefile.

Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
Reported-by: "Robert P. J. Day" <rpjday@crashcourse.ca>
slub: enforce MAX_ORDER

slub_max_order may not be equal to or greater than MAX_ORDER.

Additionally, if a single object cannot be placed in a slab of
slub_max_order, it still must allocate slabs below MAX_ORDER.

Acked-by: Christoph Lameter <cl@linux-foundation.org>
Signed-off-by: David Rientjes <rientjes@google.com>
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
ACPI video: dmi check for broken _BQC on Acer Aspire 5720

On Acer Aspire 5720, _BQC always returns a value 9 smaller than
the actual brightness level.  Add dmi quirk for this laptop.

http://bugzilla.kernel.org/show_bug.cgi?id=13121

Tested-by: Maxim Levitsky <maximlevitsky@gmail.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
svcrdma: Fix dma map direction for rdma read targets

The nfs server rdma transport was mapping rdma read target pages for
TO_DEVICE instead of FROM_DEVICE.  This causes data corruption on non
cache-coherent systems if frmrs are used.

Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
slub: add Documentation/ABI/testing/sysfs-kernel-slab

Adds documentation for the slub ABI.

This is placed in the `testing' directory since the meanings of these
files are still subject to change as slub is developed.

Acked-by: Christoph Lameter <cl@linux-foundation.org>
Cc: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: David Rientjes <rientjes@google.com>
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
fuse: destroy bdi on error

Destroy bdi on error in fuse_fill_super().

This was an omission from commit 26c3679101dbccc054dcf370143941844ba70531
"fuse: destroy bdi on umount", which moved the bdi_destroy() call from
fuse_conn_put() to fuse_put_super().

Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
CC: stable@kernel.org
CRIS: Wire up syscalls signalfd4 to writev.

Adds sys_signalfd4, sys_eventfd2, sys_epoll_create1, sys_dup3,
sys_pipe2, sys_inotify_init1, sys_preadv, sys_pwritev
for both CRISv10 and CRISv32.
CRISv32: Fix typo compile error in ARTPEC-3 gpio driver.

arch/cris/arch-v32/drivers/mach-a3/gpio.c:
+spin_lock_irqrestore(&gpio_lock, flags);
arch/cris/arch-v32/drivers/mach-a3/gpio.c:
+spin_lock_irqrestore(&gpio_lock, flags);

  should that not be "spin_unlock_irqrestore()"?

The code in question was inside an (most often) undefined ifdef.

Reported-by: "Robert P. J. Day" <rpjday@crashcourse.ca>
Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
RDMA/cxgb3: Don't complete flushed send work requests twice

When the SQ is flushed, mark the flushed entries as not signaled so
the poll logic doesn't re-insert the CQ entry thinking its an out of
order completion.

The bug can cause the NFS/RDMA server to crash due to processing the
same completed work request twice.

Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
drm/i915: x86 always has writeq. Add I915_READ64 for symmetry.

i386 has inline code for writeq and readq, so just use those instead of ugly
macros which evaluate arguments multiple times.

Signed-off-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
drm/i915: save/restore fence registers across suspend/resume

This makes software fallbacks not do tiling wrong on i965 and later after
resume. It also should fix 945 performance reduction after resume which
would have disabled tiling without causing any visible effect.

Signed-off-by: Keith Packard <keithp@keithp.com>
[anholt: Fixed up the 915 case to not save/restore the new regs]
Signed-off-by: Eric Anholt <eric@anholt.net>
svcrdma: clean up error paths.

These fixes resolved crashes due to resource leak BUG_ON checks. The
resource leaks were detected by introducing asynchronous transport errors.

Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Tom Tucker <tom@opengridcomputing.com>
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
nfsd41: slots are freed with session

The session and slots are allocated all in one piece.

Signed-off-by: Andy Adamson <andros@netapp.com>
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
i2c-pxa.c: timeouts off by 1

With `while (timeout--)' timeout reaches -1 after the loop, so the tests
below are off by one.

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Acked-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>