[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/drivers/net/mv643xx_eth.c b/drivers/net/mv643xx_eth.c
index 6b39a26..4372383 100644
--- a/drivers/net/mv643xx_eth.c
+++ b/drivers/net/mv643xx_eth.c
@@ -1166,7 +1166,7 @@
 		switch (ip_hdr(skb)->protocol) {
 		case IPPROTO_UDP:
 			cmd_sts |= ETH_UDP_FRAME;
-			desc->l4i_chk = skb->h.uh->check;
+			desc->l4i_chk = udp_hdr(skb)->check;
 			break;
 		case IPPROTO_TCP:
 			desc->l4i_chk = skb->h.th->check;