fou: Call setup_udp_tunnel_sock

Use helper function to set up UDP tunnel related information for a fou
socket.

Signed-off-by: Tom Herbert <tom@herbertland.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/ipv4/fou.c b/net/ipv4/fou.c
index eeec7d6..6cbc725 100644 (file)
--- a/net/ipv4/fou.c
+++ b/net/ipv4/fou.c
@@ -448,31 +448,13 @@ static void fou_release(struct fou *fou)
        kfree_rcu(fou, rcu);
 }
 
-static int fou_encap_init(struct sock *sk, struct fou *fou, struct fou_cfg *cfg)
-{
-       udp_sk(sk)->encap_rcv = fou_udp_recv;
-       udp_sk(sk)->gro_receive = fou_gro_receive;
-       udp_sk(sk)->gro_complete = fou_gro_complete;
-       fou_from_sock(sk)->protocol = cfg->protocol;
-
-       return 0;
-}
-
-static int gue_encap_init(struct sock *sk, struct fou *fou, struct fou_cfg *cfg)
-{
-       udp_sk(sk)->encap_rcv = gue_udp_recv;
-       udp_sk(sk)->gro_receive = gue_gro_receive;
-       udp_sk(sk)->gro_complete = gue_gro_complete;
-
-       return 0;
-}
-
 static int fou_create(struct net *net, struct fou_cfg *cfg,
                      struct socket **sockp)
 {
        struct socket *sock = NULL;
        struct fou *fou = NULL;
        struct sock *sk;
+       struct udp_tunnel_sock_cfg tunnel_cfg;
        int err;
 
        /* Open UDP socket */
@@ -491,33 +473,33 @@ static int fou_create(struct net *net, struct fou_cfg *cfg,
 
        fou->flags = cfg->flags;
        fou->port = cfg->udp_config.local_udp_port;
+       fou->type = cfg->type;
+       fou->sock = sock;
+
+       memset(&tunnel_cfg, 0, sizeof(tunnel_cfg));
+       tunnel_cfg.encap_type = 1;
+       tunnel_cfg.sk_user_data = fou;
+       tunnel_cfg.encap_destroy = NULL;
 
        /* Initial for fou type */
        switch (cfg->type) {
        case FOU_ENCAP_DIRECT:
-               err = fou_encap_init(sk, fou, cfg);
-               if (err)
-                       goto error;
+               tunnel_cfg.encap_rcv = fou_udp_recv;
+               tunnel_cfg.gro_receive = fou_gro_receive;
+               tunnel_cfg.gro_complete = fou_gro_complete;
+               fou->protocol = cfg->protocol;
                break;
        case FOU_ENCAP_GUE:
-               err = gue_encap_init(sk, fou, cfg);
-               if (err)
-                       goto error;
+               tunnel_cfg.encap_rcv = gue_udp_recv;
+               tunnel_cfg.gro_receive = gue_gro_receive;
+               tunnel_cfg.gro_complete = gue_gro_complete;
                break;
        default:
                err = -EINVAL;
                goto error;
        }
 
-       fou->type = cfg->type;
-
-       udp_sk(sk)->encap_type = 1;
-       udp_encap_enable();
-
-       sk->sk_user_data = fou;
-       fou->sock = sock;
-
-       inet_inc_convert_csum(sk);
+       setup_udp_tunnel_sock(net, sock, &tunnel_cfg);
 
        sk->sk_allocation = GFP_ATOMIC;