gro: Optimise IPv4 packet reception

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As this function can be called more than half a million times for
10GbE, it's important to optimise it as much as we can.

This patch does some obvious changes to use 2-byte and 4-byte
operations instead of byte-oriented ones where possible.  Bit
ops are also used to replace logical ops to reduce branching.

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

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Herbert Xu 2009-02-08 18:00:39 +00:00 • committed by David S. Miller

parent aa4b9f533e

commit a5ad24be72

1 changed files with 7 additions and 6 deletions

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net/ipv4/af_inet.c

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