[IPV4] xfrm4_mode_beet: Use skb_transport_header().

Signed-off-by: David S. Miller <davem@davemloft.net>

net/ipv4/xfrm4_mode_beet.c

@@ -100,7 +100,7 @@ static int xfrm4_beet_input(struct xfrm_state *x, struct sk_buff *skb)
 	skb_set_network_header(skb, phlen - sizeof(*iph));
 	memmove(skb_network_header(skb), iph, sizeof(*iph));
 	skb_set_transport_header(skb, phlen + optlen);
-	skb->data = skb->h.raw;
+	skb->data = skb_transport_header(skb);
 
 	iph = ip_hdr(skb);
 	iph->ihl = (sizeof(*iph) + optlen) / 4;