[UDP]: Revert 2-pass hashing changes.

This reverts changesets:

6aaf47fa48d3c44280810b1b470261d340e4ed87
b7b5f487ab39bc10ed0694af35651a03d9cb97ff
de34ed91c4ffa4727964a832c46e624dd1495cf5
fc038410b4b1643766f8033f4940bcdb1dace633

There are still some correctness issues recently
discovered which do not have a known fix that doesn't
involve doing a full hash table scan on port bind.

So revert for now.

Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/ipv4/udplite.c b/net/ipv4/udplite.c
index 3653b32..f34fd68 100644
--- a/net/ipv4/udplite.c
+++ b/net/ipv4/udplite.c
@@ -19,15 +19,14 @@
 static int		udplite_port_rover;
 
 int udplite_get_port(struct sock *sk, unsigned short p,
-		     const struct udp_get_port_ops *ops)
+		     int (*c)(const struct sock *, const struct sock *))
 {
-	return  __udp_lib_get_port(sk, p, udplite_hash,
-				   &udplite_port_rover, ops);
+	return  __udp_lib_get_port(sk, p, udplite_hash, &udplite_port_rover, c);
 }
 
 static int udplite_v4_get_port(struct sock *sk, unsigned short snum)
 {
-	return udplite_get_port(sk, snum, &udp_ipv4_ops);
+	return udplite_get_port(sk, snum, ipv4_rcv_saddr_equal);
 }
 
 static int udplite_rcv(struct sk_buff *skb)