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/decnet/dn_rules.c b/net/decnet/dn_rules.c
index 48fdf10..6eb91df 100644
--- a/net/decnet/dn_rules.c
+++ b/net/decnet/dn_rules.c
@@ -175,7 +175,7 @@
 
 unsigned dnet_addr_type(__le16 addr)
 {
-	struct flowi fl = { .nl_u = { .dn_u = { .daddr = addr } } };
+	struct flowi fl = { .fld_dst = addr };
 	struct dn_fib_res res;
 	unsigned ret = RTN_UNICAST;
 	struct dn_fib_table *tb = dn_fib_get_table(RT_TABLE_LOCAL, 0);