[IPV4]: ip_rt_redirect() annotations

The first 4 arguments of ip_rt_redirect() are net-endian.  Annotated.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>

include/net/route.h

@@ -109,8 +109,8 @@ extern struct ip_rt_acct *ip_rt_acct;
 
 struct in_device;
 extern int		ip_rt_init(void);
-extern void		ip_rt_redirect(u32 old_gw, u32 dst, u32 new_gw,
-				       u32 src, struct net_device *dev);
+extern void		ip_rt_redirect(__be32 old_gw, __be32 dst, __be32 new_gw,
+				       __be32 src, struct net_device *dev);
 extern void		ip_rt_advice(struct rtable **rp, int advice);
 extern void		rt_cache_flush(int how);
 extern int		__ip_route_output_key(struct rtable **, const struct flowi *flp);

net/ipv4/route.c

@@ -1118,13 +1118,13 @@ static void rt_del(unsigned hash, struct rtable *rt)
 	spin_unlock_bh(rt_hash_lock_addr(hash));
 }
 
-void ip_rt_redirect(u32 old_gw, u32 daddr, u32 new_gw,
-		    u32 saddr, struct net_device *dev)
+void ip_rt_redirect(__be32 old_gw, __be32 daddr, __be32 new_gw,
+		    __be32 saddr, struct net_device *dev)
 {
 	int i, k;
 	struct in_device *in_dev = in_dev_get(dev);
 	struct rtable *rth, **rthp;
-	u32  skeys[2] = { saddr, 0 };
+	__be32  skeys[2] = { saddr, 0 };
 	int  ikeys[2] = { dev->ifindex, 0 };
 	struct netevent_redirect netevent;