void rt_flush_dev(struct net_device *dev);
struct rtable *__ip_route_output_key(struct net *, struct flowi4 *flp);
struct rtable *ip_route_output_flow(struct net *, struct flowi4 *flp,
- struct sock *sk);
+ const struct sock *sk);
struct dst_entry *ipv4_blackhole_route(struct net *net,
struct dst_entry *dst_orig);