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tcp: Optimise GRO port comparisons 

Instead of doing two 16-bit operations for the source/destination
ports, we can do one 32-bit operation to take care both.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Herbert Xu 2009-05-26 18:50:24 +00:00 committed by David S. Miller
parent 78d3fd0b7d
commit 745898eaf0
1 changed files with 1 additions and 1 deletions
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2
net/ipv4/tcp.c
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@ -2544,7 +2544,7 @@ struct sk_buff **tcp_gro_receive(struct sk_buff **head, struct sk_buff *skb)
th2 = tcp_hdr(p);
if ((th->source ^ th2->source) | (th->dest ^ th2->dest)) {
if (*(u32 *)&th->source ^ *(u32 *)&th2->source) {
NAPI_GRO_CB(p)->same_flow = 0;
continue;
}