linux-stable.git, branch v3.12.63

Linux 3.12.63

2016-08-19T10:02:44+00:00

module: Invalidate signatures on force-loaded modules

2016-08-19T10:02:43+00:00

commit bca014caaa6130e57f69b5bf527967aa8ee70fdd upstream.

Signing a module should only make it trusted by the specific kernel it
was built for, not anything else.  Loading a signed module meant for a
kernel with a different ABI could have interesting effects.
Therefore, treat all signatures as invalid when a module is
force-loaded.

Signed-off-by: Ben Hutchings 
Signed-off-by: Rusty Russell 
Signed-off-by: Jiri Slaby

dm flakey: error READ bios during the down_interval

2016-08-19T10:02:43+00:00

commit 99f3c90d0d85708e7401a81ce3314e50bf7f2819 upstream.

When the corrupt_bio_byte feature was introduced it caused READ bios to
no longer be errored with -EIO during the down_interval.  This had to do
with the complexity of needing to submit READs if the corrupt_bio_byte
feature was used.

Fix it so READ bios are properly errored with -EIO; doing so early in
flakey_map() as long as there isn't a match for the corrupt_bio_byte
feature.

Fixes: a3998799fb4df ("dm flakey: add corrupt_bio_byte feature")
Reported-by: Akira Hayakawa 
Signed-off-by: Mike Snitzer 
Signed-off-by: Jiri Slaby

ubi: Fix race condition between ubi device creation and udev

2016-08-19T07:51:24+00:00

commit 714fb87e8bc05ff78255afc0dca981e8c5242785 upstream.

Install the UBI device object before we arm sysfs.
Otherwise udev tries to read sysfs attributes before UBI is ready and
udev rules will not match.

Signed-off-by: Iosif Harutyunov 
[rw: massaged commit message]
Signed-off-by: Richard Weinberger 
Signed-off-by: Jiri Slaby

ubi: Make volume resize power cut aware

2016-08-19T07:51:23+00:00

commit 4946784bd3924b1374f05eebff2fd68660bae866 upstream.

When the volume resize operation shrinks a volume,
LEBs will be unmapped. Since unmapping will not erase these
LEBs immediately we have to wait for that operation to finish.
Otherwise in case of a power cut right after writing the new
volume table the UBI attach process can find more LEBs than the
volume table knows. This will render the UBI image unattachable.

Fix this issue by waiting for erase to complete and write the new
volume table afterward.

Reported-by: Boris Brezillon 
Reviewed-by: Boris Brezillon 
Signed-off-by: Richard Weinberger 
Signed-off-by: Jiri Slaby

IB/mlx4: Fix the SQ size of an RC QP

2016-08-19T07:51:23+00:00

commit f2940e2c76bb554a7fbdd28ca5b90904117a9e96 upstream.

When calculating the required size of an RC QP send queue, leave
enough space for masked atomic operations, which require more space than
"regular" atomic operation.

Fixes: 6fa8f719844b ("IB/mlx4: Add support for masked atomic operations")
Signed-off-by: Yishai Hadas 
Reviewed-by: Jack Morgenstein 
Reviewed-by: Eran Ben Elisha 
Signed-off-by: Leon Romanovsky 
Signed-off-by: Doug Ledford 
Signed-off-by: Jiri Slaby

IB/IPoIB: Don't update neigh validity for unresolved entries

2016-08-19T07:51:22+00:00

commit 61c78eea9516a921799c17b4c20558e2aa780fd3 upstream.

ipoib_neigh_get unconditionally updates the "alive" variable member on
any packet send.  This prevents the neighbor garbage collection from
cleaning out a dead neighbor entry if we are still queueing packets
for it.  If the queue for this neighbor is full, then don't update the
alive timestamp.  That way the neighbor can time out even if packets
are still being queued as long as none of them are being sent.

Fixes: b63b70d87741 ("IPoIB: Use a private hash table for path lookup in xmit path")
Signed-off-by: Erez Shitrit 
Signed-off-by: Leon Romanovsky 
Signed-off-by: Doug Ledford 
Signed-off-by: Jiri Slaby

IB/mlx5: Fix post send fence logic

2016-08-19T07:51:22+00:00

commit c9b254955b9f8814966f5dabd34c39d0e0a2b437 upstream.

If the caller specified IB_SEND_FENCE in the send flags of the work
request and no previous work request stated that the successive one
should be fenced, the work request would be executed without a fence.
This could result in RDMA read or atomic operations failure due to a MR
being invalidated. Fix this by adding the mlx5 enumeration for fencing
RDMA/atomic operations and fix the logic to apply this.

Fixes: e126ba97dba9 ('mlx5: Add driver for Mellanox Connect-IB adapters')
Signed-off-by: Eli Cohen 
Signed-off-by: Leon Romanovsky 
Signed-off-by: Doug Ledford 
Signed-off-by: Jiri Slaby

IB/mlx5: Fix returned values of query QP

2016-08-19T07:51:21+00:00

commit 0540d8148d419bf769e5aa99c77027febd8922f0 upstream.

Some variables were not initialized properly: max_recv_wr,
max_recv_sge, max_send_wr, qp_context and max_inline_data.

Fixes: e126ba97dba9 ('mlx5: Add driver for Mellanox Connect-IB...')
Signed-off-by: Noa Osherovich 
Signed-off-by: Leon Romanovsky 
Reviewed-by: Sagi Grimberg 
Signed-off-by: Doug Ledford 
Signed-off-by: Jiri Slaby

IB/mlx5: Fix MODIFY_QP command input structure

2016-08-19T07:51:21+00:00

commit e3353c268b06236d6c40fa1714c114f21f44451c upstream.

Make MODIFY_QP command input structure compliant to specification

Fixes: e126ba97dba9 ('mlx5: Add driver for Mellanox Connect-IB adapters')
Signed-off-by: Artemy Kovalyov 
Signed-off-by: Leon Romanovsky 
Signed-off-by: Doug Ledford 
Signed-off-by: Jiri Slaby