Re: [PATCH net-next v4] ipv6: add ipv6_addr_hash() helper

[David Miller <davem@davemloft.net>]

From: Eric Dumazet <eric.dumazet@gmail.com>
Date: Wed, 18 Jul 2012 20:11:12 +0200

> From: Eric Dumazet <edumazet@google.com>
> 
> Introduce ipv6_addr_hash() helper doing a XOR on all bits
> of an IPv6 address, with an optimized x86_64 version.
> 
> Use it in flow dissector, as suggested by Andrew McGregor,
> to reduce hash collision probabilities in fq_codel (and other
> users of flow dissector)
> 
> Use it in ip6_tunnel.c and use more bit shuffling, as suggested
> by David Laight, as existing hash was ignoring most of them.
> 
> Use it in sunrpc and use more bit shuffling, using hash_32().
> 
> Use it in net/ipv6/addrconf.c, using hash_32() as well.
> 
> As a cleanup, use it in net/ipv4/tcp_metrics.c
> 
> Signed-off-by: Eric Dumazet <edumazet@google.com>
> Reported-by: Andrew McGregor <andrewmcgr@gmail.com>

Applied, thanks.

> v4: net/ipv6/addrconf.c part, sorry again David

The more you test my routing cache removal patches, the
more you will be forgiven :-))))))