Merge branch 'mlx4-fixes'

Or Gerlitz says:

====================
mlx4 driver fixes, July 22nd 2015

Just few mlx4 fixes.. the fix related to propagating port state
changes to VF should go to -stable of >= 3.11, all the rest just
to 4.2-rc
====================

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