[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/route.c b/net/ipv6/route.c
index b39ae99..e9c1fc5 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -714,7 +714,7 @@
 #ifdef CONFIG_IPV6_ROUTE_FWMARK
 				.fwmark = skb->nfmark,
 #endif
-				.flowlabel = (* (u32 *) iph)&IPV6_FLOWINFO_MASK,
+				.flowlabel = (* (__be32 *) iph)&IPV6_FLOWINFO_MASK,
 			},
 		},
 		.proto = iph->nexthdr,