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ipv6: use jhash2() in rt6_exception_hash()

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Faster jhash2() can be used instead of jhash(), since
IPv6 addresses have the needed alignment requirement.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Eric Dumazet 2019-11-03 18:24:16 -08:00 committed by David S. Miller
parent 0c65b2b90d
commit b6b556afd2
1 changed files with 2 additions and 2 deletions
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4
net/ipv6/route.c
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@ -1475,11 +1475,11 @@ static u32 rt6_exception_hash(const struct in6_addr *dst,
u32 val;
net_get_random_once(&seed, sizeof(seed));
val = jhash(dst, sizeof(*dst), seed);
val = jhash2((const u32 *)dst, sizeof(*dst)/sizeof(u32), seed);
#ifdef CONFIG_IPV6_SUBTREES
if (src)
val = jhash(src, sizeof(*src), val);
val = jhash2((const u32 *)src, sizeof(*src)/sizeof(u32), val);
#endif
return hash_32(val, FIB6_EXCEPTION_BUCKET_SIZE_SHIFT);
}