l2tp: don't export l2tp_tunnel_closeall()

This function is only used in l2tp_core.c.
Signed-off-by: NGuillaume Nault <g.nault@alphalink.fr>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

net/l2tp/l2tp_core.c

@@ -1192,7 +1192,7 @@ static void l2tp_tunnel_destruct(struct sock *sk)
 
 /* When the tunnel is closed, all the attached sessions need to go too.
  */
-void l2tp_tunnel_closeall(struct l2tp_tunnel *tunnel)
+static void l2tp_tunnel_closeall(struct l2tp_tunnel *tunnel)
 {
 	int hash;
 	struct hlist_node *walk;
@@ -1241,7 +1241,6 @@ void l2tp_tunnel_closeall(struct l2tp_tunnel *tunnel)
 	}
 	write_unlock_bh(&tunnel->hlist_lock);
 }
-EXPORT_SYMBOL_GPL(l2tp_tunnel_closeall);
 
 /* Tunnel socket destroy hook for UDP encapsulation */
 static void l2tp_udp_encap_destroy(struct sock *sk)

net/l2tp/l2tp_core.h

@@ -219,7 +219,6 @@ int l2tp_tunnel_create(struct net *net, int fd, int version, u32 tunnel_id,
 int l2tp_tunnel_register(struct l2tp_tunnel *tunnel, struct net *net,
 			 struct l2tp_tunnel_cfg *cfg);
 
-void l2tp_tunnel_closeall(struct l2tp_tunnel *tunnel);
 void l2tp_tunnel_delete(struct l2tp_tunnel *tunnel);
 struct l2tp_session *l2tp_session_create(int priv_size,
 					 struct l2tp_tunnel *tunnel,