Merge branch 'sfc-3.9' of git://git.kernel.org/pub/scm/linux/kernel/git/bwh/sfc

Ben Hutchings says:

====================
Just the one bug fix I mentioned before, but it's a pretty important one
as it can cause silent data corruption or IOMMU page faults.

This would be suitable for stable and should apply cleanly to all the
3.x.y branches.  I'm still working through testing of larger sets of
fixes.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>