[IPV6]: flowlabels are net-endian

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/ipv6/ip6_tunnel.c b/net/ipv6/ip6_tunnel.c
index 6a3026d..4919f92 100644
--- a/net/ipv6/ip6_tunnel.c
+++ b/net/ipv6/ip6_tunnel.c
@@ -665,9 +665,9 @@
 
 	dsfield = ipv6_get_dsfield(ipv6h);
 	if ((t->parms.flags & IP6_TNL_F_USE_ORIG_TCLASS))
-		fl.fl6_flowlabel |= (*(__u32 *) ipv6h & IPV6_TCLASS_MASK);
+		fl.fl6_flowlabel |= (*(__be32 *) ipv6h & IPV6_TCLASS_MASK);
 	if ((t->parms.flags & IP6_TNL_F_USE_ORIG_FLOWLABEL))
-		fl.fl6_flowlabel |= (*(__u32 *) ipv6h & IPV6_FLOWLABEL_MASK);
+		fl.fl6_flowlabel |= (*(__be32 *) ipv6h & IPV6_FLOWLABEL_MASK);
 
 	if (encap_limit >= 0 && (opt = create_tel(encap_limit)) == NULL)
 		goto tx_err;
@@ -735,7 +735,7 @@
 
 	skb->nh.raw = skb_push(skb, sizeof(struct ipv6hdr));
 	ipv6h = skb->nh.ipv6h;
-	*(u32*)ipv6h = fl.fl6_flowlabel | htonl(0x60000000);
+	*(__be32*)ipv6h = fl.fl6_flowlabel | htonl(0x60000000);
 	dsfield = INET_ECN_encapsulate(0, dsfield);
 	ipv6_change_dsfield(ipv6h, ~INET_ECN_MASK, dsfield);
 	ipv6h->payload_len = htons(skb->len - sizeof(struct ipv6hdr));