[XFRM]: misc annotations

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/ipv6/xfrm6_policy.c b/net/ipv6/xfrm6_policy.c
index d400f8f..2fba1f0 100644
--- a/net/ipv6/xfrm6_policy.c
+++ b/net/ipv6/xfrm6_policy.c
@@ -278,7 +278,7 @@
 		case IPPROTO_SCTP:
 		case IPPROTO_DCCP:
 			if (pskb_may_pull(skb, skb->nh.raw + offset + 4 - skb->data)) {
-				u16 *ports = (u16 *)exthdr;
+				__be16 *ports = (__be16 *)exthdr;
 
 				fl->fl_ip_sport = ports[0];
 				fl->fl_ip_dport = ports[1];