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authorstephen hemminger <shemminger@vyatta.com>2009-11-10 07:20:34 +0000
committerDavid S. Miller <davem@davemloft.net>2009-11-11 19:22:12 -0800
commit08e9897d512fe7a67e46209543b3815b57a36dc7 (patch)
tree0fad8d5d896a0b191f2df1425afa9565041dedae /net/decnet
parent7e5ca6a22de8fa79897daae51d76b473e44f8066 (diff)
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netdev: fold name hash properly (v3)
The full_name_hash function does not produce well distributed values in the lower bits, so most code uses hash_32() to fold it. This is really a bug introduced when name hashing was added, back in 2.5 when I added name hashing. hash_32 is all that is needed since full_name_hash returns unsigned int which is only 32 bits on 64 bit platforms. Also, there is no point in using hash_32 on ifindex, because the is naturally sequential and usually well distributed. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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