tree e4dad24604077a6ca1cd1542e3d3de8b6365cedc
parent 0a5c047507aaaf00519921336d19c0f8f5f9f363
author David S. Miller <davem@davemloft.net> 1301572334 -0700
committer David S. Miller <davem@davemloft.net> 1301572334 -0700

net: Add helper flowi4_init_output().

On-stack initialization via assignment of flow structures are
expensive because GCC emits a memset() to clear the entire
structure out no matter what.

Add a helper for ipv4 output flow key setup which we can use to avoid
the memset.

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