[ICSK]: Introduce inet_csk_ctl_sock_create

Consolidating open coded sequences in tcp and dccp, v4 and v6.

Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

2 files changed, 5 insertions, 48 deletions

diff --git a/net/dccp/ipv4.c b/net/dccp/ipv4.c
index f53bce590ade..7098f1055f4a 100644
--- a/net/dccp/ipv4.c
+++ b/net/dccp/ipv4.c
@@ -1099,29 +1099,6 @@ static struct inet_protosw dccp_v4_protosw = {
         .flags          = INET_PROTOSW_ICSK,
 };
 
-static char dccp_v4_ctl_socket_err_msg[] __initdata =
-        KERN_ERR "DCCP: Failed to create the control socket.\n";
-
-static int __init dccp_v4_ctl_sock_init(void)
-{
-        int rc = sock_create_kern(PF_INET, SOCK_DCCP, IPPROTO_DCCP,
-                                  &dccp_v4_ctl_socket);
-        if (rc < 0)
-                printk(dccp_v4_ctl_socket_err_msg);
-        else {
-                dccp_v4_ctl_socket->sk->sk_allocation = GFP_ATOMIC;
-                inet_sk(dccp_v4_ctl_socket->sk)->uc_ttl = -1;
-
-                /* Unhash it so that IP input processing does not even
-                 * see it, we do not wish this socket to see incoming
-                 * packets.
-                 */
-                dccp_v4_ctl_socket->sk->sk_prot->unhash(dccp_v4_ctl_socket->sk);
-        }
-
-        return rc;
-}
-
 static int __init dccp_v4_init(void)
 {
         int err = proto_register(&dccp_v4_prot, 1);
@@ -1135,7 +1112,8 @@ static int __init dccp_v4_init(void)
 
         inet_register_protosw(&dccp_v4_protosw);
 
-        err = dccp_v4_ctl_sock_init();
+        err = inet_csk_ctl_sock_create(&dccp_v4_ctl_socket, PF_INET,
+                                       SOCK_DCCP, IPPROTO_DCCP);
         if (err)
                 goto out_unregister_protosw;
 out:
diff --git a/net/dccp/ipv6.c b/net/dccp/ipv6.c
index 3c9f0836404f..6bd9979334a2 100644
--- a/net/dccp/ipv6.c
+++ b/net/dccp/ipv6.c
@@ -1229,29 +1229,6 @@ static struct inet_protosw dccp_v6_protosw = {
         .flags          = INET_PROTOSW_ICSK,
 };
 
-static char dccp_v6_ctl_socket_err_msg[] __initdata =
-        KERN_ERR "DCCP: Failed to create the control socket.\n";
-
-static int __init dccp_v6_ctl_sock_init(void)
-{
-        int rc = sock_create_kern(PF_INET6, SOCK_DCCP, IPPROTO_DCCP,
-                                  &dccp_v6_ctl_socket);
-        if (rc < 0)
-                printk(dccp_v6_ctl_socket_err_msg);
-        else {
-                dccp_v6_ctl_socket->sk->sk_allocation = GFP_ATOMIC;
-                inet_sk(dccp_v6_ctl_socket->sk)->uc_ttl = -1;
-
-                /* Unhash it so that IP input processing does not even
-                 * see it, we do not wish this socket to see incoming
-                 * packets.
-                 */
-                dccp_v6_ctl_socket->sk->sk_prot->unhash(dccp_v6_ctl_socket->sk);
-        }
-
-        return rc;
-}
-
 static int __init dccp_v6_init(void)
 {
         int err = proto_register(&dccp_v6_prot, 1);
@@ -1265,7 +1242,9 @@ static int __init dccp_v6_init(void)
 
         inet6_register_protosw(&dccp_v6_protosw);
 
-        if (dccp_v6_ctl_sock_init() != 0)
+        err = inet_csk_ctl_sock_create(&dccp_v6_ctl_socket, PF_INET6,
+                                       SOCK_DCCP, IPPROTO_DCCP);
+        if (err != 0)
                 goto out_unregister_protosw;
 out:
         return err;