Commit Graph

519117 Commits

Author SHA1 Message Date
Aaro Koskinen 2638f71307 staging: octeon-ethernet: consolidate carrier notifications
Always use cvm_oct_note_carrier() to avoid copy-pasted code.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-04-30 16:59:23 +02:00
Aaro Koskinen 36a1457241 staging: octeon-ethernet: add queue information to carrier note
Add queue information to carrier note.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-04-30 16:59:23 +02:00
Aaro Koskinen 3c33914558 staging: octeon-ethernet: delete sgmii and xaui specific uninit functions
Delete redundant wrappers.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-04-30 16:59:23 +02:00
Aaro Koskinen be76400c31 staging: octeon-ethernet: move ndo_stop to common init
All init functions call ndo_stop if it's defined, so move it
to common function.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-04-30 16:59:23 +02:00
Aaro Koskinen 96217ebff7 staging: octeon-ethernet: consolidate ndo_stop functions
All ndo_stop functions are identical. Get rid of duplicated code.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-04-30 16:59:23 +02:00
Aaro Koskinen 9e3ae4f9ae staging: octeon-ethernet: consolidate ndo_open functions
ndo_open for rgmii, sgmii and xaui are almost identical. Put the common
code in a single function.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-04-30 16:59:23 +02:00
Malcolm Priestley 32b249b0f5 staging: vt6655: device_intr check for vif on while loop
vif should never be or go null while in loop.

Fixes race condition where interrupts are late and when
interface is not present.

Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-04-30 16:57:32 +02:00
Alan aeda3b2d4a iio: example code is buggy
Shock horror, example template code that has never been used in reality is
in fact a hazard. This fixes the obvious bug, probably these kind of
"examples" should be deleted so real (working) examples are followed.

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-04-30 16:57:32 +02:00
Gujulan Elango, Hari Prasath (H.) 9436165544 staging: emxx_udc: Remove dead code
This patch removes few lines of commented code.

Signed-off-by: Hari Prasath Gujulan Elango <hgujulan@visteon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-04-30 16:52:21 +02:00
Gujulan Elango, Hari Prasath (H.) 3e2bb64d1a staging: emxx_udc : remove stray semicolon
This patch removes a stray semicolon around closing brace of an if code
block.

Signed-off-by: Hari Prasath Gujulan Elango <hgujulan@visteon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-04-30 16:52:21 +02:00
Julia Lawall bd7de5cea2 staging: emxx_udc: test returned value
Put NULL test on the result of the previous call instead on one of its
arguments.  A simplified version of the semantic match that finds this
problem is as follows (http://coccinelle.lip6.fr/):

// <smpl>
r@
expression *e1;
expression *e2;
identifier f;
statement S1,S2;
@@

e1 = f(...,e2,...);
(
if (e1 == NULL || ...) S1 else S2
|
*if (e2 == NULL || ...) S1 else S2
)
// </smpl>

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-04-30 16:52:21 +02:00
Nicolas Iooss 27cbc73aac Staging: fbtft: fix header guard typo
drivers/staging/fbtft/internal.h header guard tests for
__LINUX_FBTFT__INTERNAL_H but then defines __LINUX_FBTFT_INTERNAL_H
(only 1 underscore) and uses the same name for the #endif comment.
Use the same name everywhere.

Signed-off-by: Nicolas Iooss <nicolas.iooss_linux@m4x.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-04-30 16:51:21 +02:00
Geert Uytterhoeven 8e1a4c7f71 staging: fbtft: Disable DMA support if DMA is not available
If NO_DMA=y:

    drivers/built-in.o: In function `fbtft_framebuffer_alloc':
    (.text+0xb53cae): undefined reference to `dmam_alloc_coherent'

As DMA support is already optional, make it depend on HAS_DMA.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-04-30 16:51:21 +02:00
Charlie Wong Super a94ac1590b staging: fbtft: Add a blank line after declarations
scripts/checkpatch.pl WARNING: Missing a blank line after declarations

Signed-off-by: Charlie Wong Super <1213charlie@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-04-30 16:39:44 +02:00
Charlie Wong Super afe11f108a staging: fbtft: Replace spaces to tab
Spaces at the start of the line, replace the leading space to tabs

Signed-off-by: Charlie Wong Super <1213charlie@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-04-30 16:39:44 +02:00
Benjamin Romer 6a7d8a4184 staging: unisys: remove uislib module from staging tree
This module is being removed completely, because it contained wrapper functions
and utility functions that were used in virtpci and virthba. Since these two
drivers are being rewritten to not use these wrappers and utilities, uislib
needs to go.

Signed-off-by: Benjamin Romer <benjamin.romer@unisys.com>
Reviewed-by: Don Zickus <dzickus@redhat.com>
Reviewed-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-04-30 16:37:22 +02:00
Benjamin Romer 280b5a4366 staging: unisys: remove virtpci driver from staging tree
The virtpci driver is being rewritten, so remove the driver from the staging
tree.

Signed-off-by: Benjamin Romer <benjamin.romer@unisys.com>
Reviewed-by: Don Zickus <dzickus@redhat.com>
Reviewed-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-04-30 16:37:21 +02:00
Benjamin Romer 3d3fb18130 staging: unisys: remove virthba driver for rewrite
The virthba driver is being rewritten and will be renamed to visorhba, so delete
the old driver from the source tree.

Signed-off-by: Benjamin Romer <benjamin.romer@unisys.com>
Reviewed-by: Don Zickus <dzickus@redhat.com>
Reviewed-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-04-30 16:36:50 +02:00
Jes Sorensen 1d4c1afac4 staging: unisys: visorchipset: Get rid of ulong usage
Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Tested-by: Benjamin Romer <benjamin.romer@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-04-30 16:33:49 +02:00
Jes Sorensen ac48c05c67 staging: unisys: visorchipset: Remove unused get_channel_info notifier
Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Tested-by: Benjamin Romer <benjamin.romer@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-04-30 16:33:06 +02:00
Jes Sorensen a6e7fe5c04 staging: unisys: visorchipset: Use correct type for dev_no
visorchipset_bus_info.dev_no is only assigned the value of
controlvm_message_packet.create_bus.dev_count, which is a u32. No
point promoting it to a u64.

Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Tested-by: Benjamin Romer <benjamin.romer@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-04-30 16:33:05 +02:00
Jes Sorensen 52063eca7f staging: unisys: visorchipset: Do not use confuse size of long with size of u32
struct visorcipset_device_info defines bus_no and dev_no as u32, while
the deprecated ulong type is 64 bits. Hence avoid promoting the values
to 64 bit just to truncate them again later.

Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Tested-by: Benjamin Romer <benjamin.romer@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-04-30 16:33:05 +02:00
Jes Sorensen f4c11551e7 staging: unisys: visorchipset: Get rid of ugly BOOL/TRUE/FALSE usage
Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Tested-by: Benjamin Romer <benjamin.romer@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-04-30 16:33:05 +02:00
Jes Sorensen c1f834eb10 staging: unisys: visorchipset: Avoid struct typedef abuse
Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Tested-by: Benjamin Romer <benjamin.romer@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-04-30 16:33:05 +02:00
Jes Sorensen 0a22650b92 staging: unisys: visorchipset: Remove unused NONULLSTR()
Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Tested-by: Benjamin Romer <benjamin.romer@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-04-30 16:33:05 +02:00
Benjamin Romer 1ba00980f6 staging: unisys: fix kdump support
The s-Par drivers used to be out-of-tree, so they needed a parameter to
let them know we were going into a dump. This patch removes that code
and uses the built-in kernel function instead.

Reviewed-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Benjamin Romer <benjamin.romer@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-04-30 16:31:49 +02:00
Andreas Theodosiou 9c4e936abf staging : unisys: Fix brace coding style issue
This is a patch to visorchannel/visorchannel_funcs.c that fixes a couple
of brace warnings found by checkpatch.pl.

Signed-off-by: Andreas Theodosiou <andreasabu@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-04-30 16:29:34 +02:00
Mike Snitzer aa6df8dd28 dm: fix free_rq_clone() NULL pointer when requeueing unmapped request
Commit 022333427a ("dm: optimize dm_mq_queue_rq to _not_ use kthread if
using pure blk-mq") mistakenly removed free_rq_clone()'s clone->q check
before testing clone->q->mq_ops.  It was an oversight to discontinue
that check for 1 of the 2 use-cases for free_rq_clone():
1) free_rq_clone() called when an unmapped original request is requeued
2) free_rq_clone() called in the request-based IO completion path

The clone->q check made sense for case #1 but not for #2.  However, we
cannot just reinstate the check as it'd mask a serious bug in the IO
completion case #2 -- no in-flight request should have an uninitialized
request_queue (basic block layer refcounting _should_ ensure this).

The NULL pointer seen for case #1 is detailed here:
https://www.redhat.com/archives/dm-devel/2015-April/msg00160.html

Fix this free_rq_clone() NULL pointer by simply checking if the
mapped_device's type is DM_TYPE_MQ_REQUEST_BASED (clone's queue is
blk-mq) rather than checking clone->q->mq_ops.  This avoids the need to
dereference clone->q, but a WARN_ON_ONCE is added to let us know if an
uninitialized clone request is being completed.

Reported-by: Bart Van Assche <bart.vanassche@sandisk.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
2015-04-30 10:25:21 -04:00
Christoph Hellwig 3e6180f0c8 dm: only initialize the request_queue once
Commit bfebd1cdb4 ("dm: add full blk-mq support to request-based DM")
didn't properly account for the need to short-circuit re-initializing
DM's blk-mq request_queue if it was already initialized.

Otherwise, reloading a blk-mq request-based DM table (either manually
or via multipathd) resulted in errors, see:
 https://www.redhat.com/archives/dm-devel/2015-April/msg00132.html

Fix is to only initialize the request_queue on the initial table load
(when the mapped_device type is assigned).

This is better than having dm_init_request_based_blk_mq_queue() return
early if the queue was already initialized because it elevates the
constraint to a more meaningful location in DM core.  As such the
pre-existing early return in dm_init_request_based_queue() can now be
removed.

Fixes: bfebd1cdb4 ("dm: add full blk-mq support to request-based DM")
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
2015-04-30 10:25:21 -04:00
Dzmitry Sledneu 3b2f5202c5 staging: lustre: Make struct mdc_kuc_fops static
This patch fixes the following Sparse warning:
"symbol 'mdc_kuc_fops' was not declared. Should it be static?".

Signed-off-by: Dzmitry Sledneu <dzmitry.sledneu@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-04-30 16:24:04 +02:00
Julia Lawall 840c94d574 staging: lustre: drop uses of some OBD alloc and free functions
Replace OBD_ALLOC, OBD_ALLOC_WAIT, OBD_ALLOC_PTR, and OBD_ALLOC_PTR_WAIT by
kzalloc or calloc, as appropriate.

Replace OBD_FREE and OBD_FREE_PTR by kfree.

A simplified version of the semantic patch that makes these changes in the
OBD_ALLOC/FREE case is as follows: (http://coccinelle.lip6.fr/)

// <smpl>
@@
expression ptr,e1,e2;
@@
- OBD_ALLOC(ptr,sizeof e1 * e2)
+ ptr = kcalloc(e2, sizeof e1, GFP_NOFS)

@@
expression ptr,size;
@@
- OBD_ALLOC(ptr,size)
+ ptr = kzalloc(size, GFP_NOFS)

@@
expression ptr, size;
@@
- OBD_FREE(ptr, size);
+ kfree(ptr);
// </smpl>

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-04-30 16:24:04 +02:00
Julia Lawall 97903a26fc staging: lustre: llite: drop uses of OBD free functions
Replace OBD_FREE and OBD_FREE_PTR by kfree.

The semantic patch that makes these changes is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@@
expression ptr, size;
@@

- OBD_FREE(ptr, size);
+ kfree(ptr);

@@
expression ptr;
@@

- OBD_FREE_PTR(ptr);
+ kfree(ptr);
// </smpl>

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-04-30 16:24:03 +02:00
Andreas Dilger 3746e6f93b staging: lustre: llite: remove obsolete conditional code
Remove conditional flock/aops code that was only for out-of-tree
vendor kernels but is not relevant for in-kernel code.

Signed-off-by: Andreas Dilger <andreas.dilger@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-04-30 16:24:03 +02:00
kbuild test robot 41d98f584f i2o: fix simple_return.cocci warnings
drivers/staging/i2o/iop.c:777:1-3: WARNING: end returns can be simpified

 Simplify a trivial if-return sequence.  Possibly combine with a
 preceding function call.
Generated by: scripts/coccinelle/misc/simple_return.cocci

CC: Alan Cox <alan@linux.intel.com>
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-04-30 16:13:13 +02:00
Gujulan Elango, Hari Prasath (H.) 3ede1b6be0 staging: i2o: Remove unwanted semicolon
This patch removes unwanted semicolon around close braces of code blocks

Signed-off-by: Hari Prasath <hgujulan@visteon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-04-30 16:08:24 +02:00
Suzuki K. Poulose 8291fd04d8 arm64: perf: Fix the pmu node name in warning message
With commit d5efd9cc9c ("arm64: pmu: add support for interrupt-affinity
property"), we print a warning when we find a PMU SPI with a missing
missing interrupt-affinity property in a pmu node. Unfortunately, we
pass the wrong (NULL) device node to of_node_full_name, resulting in
unhelpful messages such as:

 hw perfevents: Failed to parse <no-node>/interrupt-affinity[0]

This patch fixes the name to that of the pmu node.

Fixes: d5efd9cc9c (arm64: pmu: add support for interrupt-affinity property)
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Suzuki K. Poulose <suzuki.poulose@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
2015-04-30 12:11:30 +01:00
Will Deacon d795ef9aa8 arm64: perf: don't warn about missing interrupt-affinity property for PPIs
PPIs are affine by nature, so the interrupt-affinity property is not
used and therefore we shouldn't print a warning in its absence.

Reported-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Reviewed-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
2015-04-30 12:11:23 +01:00
Greg Kroah-Hartman d9ca7e929d Staging: iop.c: move assignment out of if () block
We should not be doing assignments within an if () block
so fix up the code to not do this.

change was created using Coccinelle.

CC: Supriya Karanth <iskaranth@gmail.com>
CC: Somya Anand <somyaanand214@gmail.com>
CC: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-04-30 11:17:54 +02:00
Michael Ellerman 68fc378ce3 Revert "powerpc/tm: Abort syscalls in active transactions"
This reverts commit feba40362b.

Although the principle of this change is good, the implementation has a
few issues.

Firstly we can sometimes fail to abort a syscall because r12 may have
been clobbered by C code if we went down the virtual CPU accounting
path, or if syscall tracing was enabled.

Secondly we have decided that it is safer to abort the syscall even
earlier in the syscall entry path, so that we avoid the syscall tracing
path when we are transactional.

So that we have time to thoroughly test those changes we have decided to
revert this for this merge window and will merge the fixed version in
the next window.

NB. Rather than reverting the selftest we just drop tm-syscall from
TEST_PROGS so that it's not run by default.

Fixes: feba40362b ("powerpc/tm: Abort syscalls in active transactions")
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2015-04-30 15:24:58 +10:00
Dave Airlie feb589e986 Merge branch 'drm-fixes-4.1' of git://people.freedesktop.org/~agd5f/linux into drm-fixes
Fixes for 4.1 for radeon all destined for stable:
- fix fallout from the audio rework
- VM fixes
- other assorted bug fixes

* 'drm-fixes-4.1' of git://people.freedesktop.org/~agd5f/linux:
  drm/radeon: fix userptr return value checking (v2)
  drm/radeon: check new address before removing old one
  drm/radeon: reset BOs address after clearing it.
  drm/radeon: fix lockup when BOs aren't part of the VM on release
  drm/radeon: add SI DPM quirk for Sapphire R9 270 Dual-X 2G GDDR5
  drm/radeon: adjust pll when audio is not enabled
  drm/radeon: only enable audio streams if the monitor supports it
  drm/radeon: only mark audio as connected if the monitor supports it (v3)
  drm/radeon/audio: don't enable packets until the end
  drm/radeon: drop dce6_dp_enable
  drm/radeon: fix ordering of AVI packet setup
  drm/radeon: Use drm_calloc_ab for CS relocs
2015-04-30 12:15:34 +10:00
Forrest Liu 5d2361db48 Btrfs: btrfs_release_extent_buffer_page didn't free pages of dummy extent
btrfs_release_extent_buffer_page() can't handle dummy extent that
allocated by btrfs_clone_extent_buffer() properly. That is because
reference count of pages that allocated by btrfs_clone_extent_buffer()
was 2, 1 by alloc_page(), and another by attach_extent_buffer_page().

Running following command repeatly can check this memory leak problem

    btrfs inspect-internal inode-resolve 256 /mnt/btrfs

Signed-off-by: Chien-Kuan Yeh <ckya@synology.com>
Signed-off-by: Forrest Liu <forrestl@synology.com>
Reviewed-by: Filipe Manana <fdmanana@suse.com>
Tested-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: Chris Mason <clm@fb.com>
2015-04-29 13:22:09 -07:00
Hariprasad Shenai 7f0b8a56c9 cxgb4: Fix MC1 memory offset calculation
Commit 6559a7e829 ("cxgb4: Cleanup macros so they follow the same
style and look consistent") introduced a regression where reading MC1
memory in adapters where MC0 isn't present or MC0 size is not equal to MC1
size caused the adapter to crash due to incorrect computation of memoffset.
Fix is to read the size of MC0 instead of MC1 for offset calculation

Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-04-29 15:50:16 -04:00
Yuval Mintz 12a8541d5c bnx2x: Delay during kdump load
In a kdump environment interfaces might be re-loaded without a proper
unload sequence in the previous running kernel.
bnx2x management FW and driver maintains a `pulse' that notifies the FW
that the driver is still up and running.

Driver load on the kdump kernel should be performed only after the pulse
has been out-of-sync long enough for the management FW to identify that
the driver has crashed, on which point it will perform some necessary
cleanup of the HW.

In today's distros kdump loading is quite fast, sometimes too fast for our
FW to get out-of-sync. This patch delays the bnx2x's probe during kdump
to allow a proper re-load on the kdump kernel.

Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-04-29 15:49:21 -04:00
Pai e913fb279c net: Fix Kernel Panic in bonding driver debugfs file: rlb_hash_table
This patch fixes a Kernel Panic in bonding driver debugfs file: rlb_hash_table.

$> modprobe bonding mode=6
$> cat /sys/kernel/debug/bonding/bond0/rlb_hash_table

This will crash the kernel. The struct alb_bond_info is initialized only when
the bonding interface is initialized (ip link set bond0 up) and not at the time
it is allocated. If we try to read the table before that, it'll result in a
kernel panic.

The patch applies against both net and net-next

Signed-off-by: Vishwanath Pai <vpai@akamai.com>
Signed-off-by: Andy Gospodarek <gospo@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-04-29 15:37:19 -04:00
Guenter Roeck 50d4964f1d net: dsa: Fix scope of eeprom-length property
eeprom-length is a switch property, not a dsa property, and thus
needs to be attached to the switch node, not to the dsa node.

Reported-by: Andrew Lunn <andrew@lunn.ch>
Fixes: 6793abb4e8 ("net: dsa: Add support for switch EEPROM access")
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-04-29 15:35:04 -04:00
Punnaiah Choudary Kalluri d4c216c541 net: macb: Fix race condition in driver when Rx frame is dropped
Under heavy Rx load, observed that the Hw is updating the USED bit
and it is not updating the received frame status to the BD control
field. This could be lack of resources for processing the BDs at high
data rates. Driver drops the frame associated with this BD but not
clearing the USED bit. So, this is causing hang condition as Hw
expects USED bit to be cleared for this BD.

Signed-off-by: Punnaiah Choudary Kalluri <punnaia@xilinx.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-04-29 15:24:46 -04:00
KY Srinivasan b56fc3c536 hv_netvsc: Fix a bug in netvsc_start_xmit()
Commit b08cc79155 eliminated memory
allocation in the packet send path:

    "hv_netvsc: Eliminate memory allocation in the packet send path

    The network protocol used to communicate with the host is the remote ndis (rndis)
    protocol. We need to decorate each outgoing packet with a rndis header and
    additional rndis state (rndis per-packet state). To manage this state, we
    currently allocate memory in the transmit path. Eliminate this allocation by
    requesting additional head room in the skb."

This commit introduced a bug since it did not account for the case if the skb
was cloned. Fix this bug.

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Tested-by: Dexuan Cui <decui@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-04-29 15:20:39 -04:00
Vlastimil Setka 48734994ac altera_tse: Correct rx packet length
Altera TSE MAC rx DMA transfer starts with the 2 additional bytes for IP
payload alignment. This patch fixes tse_rx() function loop which reads DMA
rx status and extracts packet length from it. Status signalises a whole DMA
transfer length, which is 2 bytes longer than the packet itself.

Signed-off-by: Vlastimil Setka <setka@vsis.cz>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-04-29 15:19:34 -04:00
Benjamin Poirier 42eab005a5 mlx4: Fix tx ring affinity_mask creation
By default, the number of tx queues is limited by the number of online cpus
in mlx4_en_get_profile(). However, this limit no longer holds after the
ethtool .set_channels method has been called. In that situation, the driver
may access invalid bits of certain cpumask variables when queue_index >=
nr_cpu_ids.

Signed-off-by: Benjamin Poirier <bpoirier@suse.de>
Acked-by: Ido Shamay <idos@mellanox.com>
Fixes: d03a68f ("net/mlx4_en: Configure the XPS queue mapping on driver load")
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-04-29 15:16:57 -04:00
Jon Paul Maloy 0d699f28ee tipc: fix problem with parallel link synchronization mechanism
Currently, we try to accumulate arrived packets in the links's
'deferred' queue during the parallel link syncronization phase.

This entails two problems:

- With an unlucky combination of arriving packets the algorithm
  may go into a lockstep with the out-of-sequence handling function,
  where the synch mechanism is adding a packet to the deferred queue,
  while the out-of-sequence handling is retrieving it again, thus
  ending up in a loop inside the node_lock scope.

- Even if this is avoided, the link will very often send out
  unnecessary protocol messages, in the worst case leading to
  redundant retransmissions.

We fix this by just dropping arriving packets on the upcoming link
during the synchronization phase, thus relying on the retransmission
protocol to resolve the situation once the two links have arrived to
a synchronized state.

Reviewed-by: Erik Hugne <erik.hugne@ericsson.com>
Reviewed-by: Ying Xue <ying.xue@windriver.com>
Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-04-29 15:08:59 -04:00