tree 5100dd399922df55b29a1acf2b5a4dcc332c10b4
parent cb1ce2ef387b01686469487edd45994872d52d73
author Tom Herbert <therbert@google.com> 1404275597 -0700
committer David S. Miller <davem@davemloft.net> 1404792861 -0700

net: Only do flow_dissector hash computation once per packet

Add sw_hash flag to skbuff to indicate that skb->hash was computed
from flow_dissector. This flag is checked in skb_get_hash to avoid
repeatedly trying to compute the hash (ie. in the case that no L4 hash
can be computed).

Signed-off-by: Tom Herbert <therbert@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>