net: use the macros defined for the members of flowi

Use the macros defined for the members of flowi to clean the code up.

Signed-off-by: Changli Gao <xiaosuo@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/ipv6/sit.c b/net/ipv6/sit.c
index d6bfaec..6e48a80 100644
--- a/net/ipv6/sit.c
+++ b/net/ipv6/sit.c
@@ -730,10 +730,9 @@
 	}
 
 	{
-		struct flowi fl = { .nl_u = { .ip4_u =
-					      { .daddr = dst,
-						.saddr = tiph->saddr,
-						.tos = RT_TOS(tos) } },
+		struct flowi fl = { .fl4_dst = dst,
+				    .fl4_src = tiph->saddr,
+				    .fl4_tos = RT_TOS(tos),
 				    .oif = tunnel->parms.link,
 				    .proto = IPPROTO_IPV6 };
 		if (ip_route_output_key(dev_net(dev), &rt, &fl)) {
@@ -855,10 +854,9 @@
 	iph = &tunnel->parms.iph;
 
 	if (iph->daddr) {
-		struct flowi fl = { .nl_u = { .ip4_u =
-					      { .daddr = iph->daddr,
-						.saddr = iph->saddr,
-						.tos = RT_TOS(iph->tos) } },
+		struct flowi fl = { .fl4_dst = iph->daddr,
+				    .fl4_src = iph->saddr,
+				    .fl4_tos = RT_TOS(iph->tos),
 				    .oif = tunnel->parms.link,
 				    .proto = IPPROTO_IPV6 };
 		struct rtable *rt;