Merge branch 'hv_netvsc-minor-optimizations'

Stephen Hemminger says:

====================
hv_netvsc: minor optimizations

These are a set of local optimizations the Hyper-V networking driver.
Also include a vmbus patch in this set, because it depends on the
netvsc that last used that function.
====================

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