[patch 029/101] IPV6: HASHTABLES: Use appropriate seed for caluculating ehash index.

[Greg KH]

From: YOSHIFUJI Hideaki <yoshfuji@xxxxxxxxxxxxxx>

Tetsuo Handa <handat@xxxxxxxxxxxxxxxx> told me that connect(2) with TCPv6
socket almost always took a few minutes to return when we did not have any
ports available in the range of net.ipv4.ip_local_port_range.

The reason was that we used incorrect seed for calculating index of
hash when we check established sockets in __inet6_check_established().

Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@xxxxxxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxx>

---
 net/ipv6/inet6_hashtables.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- linux-2.6.20.1.orig/net/ipv6/inet6_hashtables.c
+++ linux-2.6.20.1/net/ipv6/inet6_hashtables.c
@@ -172,7 +172,7 @@ static int __inet6_check_established(str
 	const struct in6_addr *saddr = &np->daddr;
 	const int dif = sk->sk_bound_dev_if;
 	const __portpair ports = INET_COMBINED_PORTS(inet->dport, lport);
-	const unsigned int hash = inet6_ehashfn(daddr, inet->num, saddr,
+	const unsigned int hash = inet6_ehashfn(daddr, lport, saddr,
 						inet->dport);
 	struct inet_ehash_bucket *head = inet_ehash_bucket(hinfo, hash);
 	struct sock *sk2;

--
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