[SK_BUFF]: Introduce udp_hdr(), remove skb->h.uh

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c
index 55affe3..1e3dfb2 100644
--- a/net/ipv6/udp.c
+++ b/net/ipv6/udp.c
@@ -172,7 +172,7 @@
 
 		sin6 = (struct sockaddr_in6 *) msg->msg_name;
 		sin6->sin6_family = AF_INET6;
-		sin6->sin6_port = skb->h.uh->source;
+		sin6->sin6_port = udp_hdr(skb)->source;
 		sin6->sin6_flowinfo = 0;
 		sin6->sin6_scope_id = 0;
 
@@ -346,7 +346,7 @@
 			   struct in6_addr *daddr, struct hlist_head udptable[])
 {
 	struct sock *sk, *sk2;
-	const struct udphdr *uh = skb->h.uh;
+	const struct udphdr *uh = udp_hdr(skb);
 	int dif;
 
 	read_lock(&udp_hash_lock);
@@ -420,7 +420,7 @@
 
 	saddr = &ipv6_hdr(skb)->saddr;
 	daddr = &ipv6_hdr(skb)->daddr;
-	uh = skb->h.uh;
+	uh = udp_hdr(skb);
 
 	ulen = ntohs(uh->len);
 	if (ulen > skb->len)
@@ -441,7 +441,7 @@
 				goto short_packet;
 			saddr = &ipv6_hdr(skb)->saddr;
 			daddr = &ipv6_hdr(skb)->daddr;
-			uh = skb->h.uh;
+			uh = udp_hdr(skb);
 		}
 	}
 
@@ -534,7 +534,7 @@
 	/*
 	 * Create a UDP header
 	 */
-	uh = skb->h.uh;
+	uh = udp_hdr(skb);
 	uh->source = fl->fl_ip_sport;
 	uh->dest = fl->fl_ip_dport;
 	uh->len = htons(up->len);