tree 273e7565811add8216267f5893335bdb7928a6b7
parent 42da6994ca6d20ad1d4e30255dee98047db454e7
author Herbert Xu <herbert@gondor.apana.org.au> 1243363821 +0000
committer David S. Miller <davem@davemloft.net> 1243419955 -0700

gro: Inline skb_gro_header and cache frag0 virtual address

The function skb_gro_header is called four times per packet which
quickly adds up at 10Gb/s.  This patch inlines it to allow better
optimisations.

Some architectures perform multiplication for page_address, which
is done by each skb_gro_header invocation.  This patch caches that
value in skb->cb to avoid the unnecessary multiplications.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>