[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/include/net/udplite.h b/include/net/udplite.h
index 76503203..635b0ea 100644
--- a/include/net/udplite.h
+++ b/include/net/udplite.h
@@ -101,7 +101,7 @@
 
 static inline __wsum udplite_csum_outgoing(struct sock *sk, struct sk_buff *skb)
 {
-	int cscov = udplite_sender_cscov(udp_sk(sk), skb->h.uh);
+	int cscov = udplite_sender_cscov(udp_sk(sk), udp_hdr(skb));
 	__wsum csum = 0;
 
 	skb->ip_summed = CHECKSUM_NONE;     /* no HW support for checksumming */