Index: linux-2.6.25.4/net/netfilter/nf_conntrack_core.c =================================================================== --- linux-2.6.25.4.orig/net/netfilter/nf_conntrack_core.c +++ linux-2.6.25.4/net/netfilter/nf_conntrack_core.c @@ -73,19 +73,15 @@ static unsigned int nf_conntrack_hash_rn static u_int32_t __hash_conntrack(const struct nf_conntrack_tuple *tuple, unsigned int size, unsigned int rnd) { - unsigned int n; - u_int32_t h; + unsigned int a, b; - /* The direction must be ignored, so we hash everything up to the - * destination ports (which is a multiple of 4) and treat the last - * three bytes manually. - */ - n = (sizeof(tuple->src) + sizeof(tuple->dst.u3)) / sizeof(u32); - h = jhash2((u32 *)tuple, n, - rnd ^ (((__force __u16)tuple->dst.u.all << 16) | - tuple->dst.protonum)); + a = jhash2(tuple->src.u3.all, ARRAY_SIZE(tuple->src.u3.all), + (tuple->src.l3num << 16) | tuple->dst.protonum); + b = jhash2(tuple->dst.u3.all, ARRAY_SIZE(tuple->dst.u3.all), + ((__force __u16)tuple->src.u.all << 16) | + (__force __u16)tuple->dst.u.all); - return ((u64)h * size) >> 32; + return ((u64)jhash_2words(a, b, rnd) * size) >> 32; } static inline u_int32_t hash_conntrack(const struct nf_conntrack_tuple *tuple)