net: Put flowi_* prefix on AF independent members of struct flowi

I intend to turn struct flowi into a union of AF specific flowi
structs.  There will be a common structure that each variant includes
first, much like struct sock_common.

This is the first step to move in that direction.

Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/ipv6/mip6.c b/net/ipv6/mip6.c
index f3e3ca9..e2f852c 100644
--- a/net/ipv6/mip6.c
+++ b/net/ipv6/mip6.c
@@ -214,7 +214,7 @@
 	struct timeval stamp;
 	int err = 0;
 
-	if (unlikely(fl->proto == IPPROTO_MH &&
+	if (unlikely(fl->flowi_proto == IPPROTO_MH &&
 		     fl->fl_mh_type <= IP6_MH_TYPE_MAX))
 		goto out;
 
@@ -240,14 +240,14 @@
 	       sizeof(sel.saddr));
 	sel.prefixlen_s = 128;
 	sel.family = AF_INET6;
-	sel.proto = fl->proto;
+	sel.proto = fl->flowi_proto;
 	sel.dport = xfrm_flowi_dport(fl);
 	if (sel.dport)
 		sel.dport_mask = htons(~0);
 	sel.sport = xfrm_flowi_sport(fl);
 	if (sel.sport)
 		sel.sport_mask = htons(~0);
-	sel.ifindex = fl->oif;
+	sel.ifindex = fl->flowi_oif;
 
 	err = km_report(net, IPPROTO_DSTOPTS, &sel,
 			(hao ? (xfrm_address_t *)&hao->addr : NULL));