commit 610986e7262624e2dd29ad8dea05b4e1ac3f07fb
author Alexander Duyck <alexander.h.duyck@redhat.com> Thu Apr 30 14:53:59 2015 -0700
committer David S. Miller <davem@davemloft.net> Sun May 03 22:30:36 2015 -0400
tree 3f5fe450644b92d062c9e6f52a56e9e50bcec8f5
parent d54385ce68cd18ab002b46f61246ad197cec92de

etherdev: Use skb->data to retrieve Ethernet header instead of eth_hdr

Avoid recomputing the Ethernet header location and instead just use the
pointer provided by skb->data.  The problem with using eth_hdr is that the
compiler wasn't smart enough to realize that skb->head + skb->mac_header
was the same thing as skb->data before it added ETH_HLEN.  By just caching
it off before calling skb_pull_inline we can avoid a few unnecessary
instructions.

Signed-off-by: Alexander Duyck <alexander.h.duyck@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>