Bluetooth: Create separate l2cap_send_disconn_req() function

The code for sending a disconnect request was repeated several times
within L2CAP source code. So move this into its own function.

Signed-off-by: Gustavo F. Padovan <gustavo@las.ic.unicamp.br>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>

1 files changed, 16 insertions, 30 deletions

diff --git a/net/bluetooth/l2cap.c b/net/bluetooth/l2cap.c
index af0fbf9ebfeb..c1b562085cb4 100644
--- a/net/bluetooth/l2cap.c
+++ b/net/bluetooth/l2cap.c
@@ -366,6 +366,16 @@ static void l2cap_do_start(struct sock *sk)
         }
 }
 
+static void l2cap_send_disconn_req(struct l2cap_conn *conn, struct sock *sk)
+{
+        struct l2cap_disconn_req req;
+
+        req.dcid = cpu_to_le16(l2cap_pi(sk)->dcid);
+        req.scid = cpu_to_le16(l2cap_pi(sk)->scid);
+        l2cap_send_cmd(conn, l2cap_get_ident(conn),
+                        L2CAP_DISCONN_REQ, sizeof(req), &req);
+}
+
 /* ---- L2CAP connections ---- */
 static void l2cap_conn_start(struct l2cap_conn *conn)
 {
@@ -650,15 +660,10 @@ static void __l2cap_sock_close(struct sock *sk, int reason)
         case BT_CONFIG:
                 if (sk->sk_type == SOCK_SEQPACKET) {
                         struct l2cap_conn *conn = l2cap_pi(sk)->conn;
-                        struct l2cap_disconn_req req;
 
                         sk->sk_state = BT_DISCONN;
                         l2cap_sock_set_timer(sk, sk->sk_sndtimeo);
-
-                        req.dcid = cpu_to_le16(l2cap_pi(sk)->dcid);
-                        req.scid = cpu_to_le16(l2cap_pi(sk)->scid);
-                        l2cap_send_cmd(conn, l2cap_get_ident(conn),
-                                        L2CAP_DISCONN_REQ, sizeof(req), &req);
+                        l2cap_send_disconn_req(conn, sk);
                 } else
                         l2cap_chan_del(sk, reason);
                 break;
@@ -1786,13 +1791,8 @@ static int l2cap_build_conf_req(struct sock *sk, void *data)
         case L2CAP_MODE_STREAMING:
         case L2CAP_MODE_ERTM:
                 pi->conf_state |= L2CAP_CONF_STATE2_DEVICE;
-                if (!l2cap_mode_supported(pi->mode, pi->conn->feat_mask)) {
-                        struct l2cap_disconn_req req;
-                        req.dcid = cpu_to_le16(pi->dcid);
-                        req.scid = cpu_to_le16(pi->scid);
-                        l2cap_send_cmd(pi->conn, l2cap_get_ident(pi->conn),
-                                        L2CAP_DISCONN_REQ, sizeof(req), &req);
-                }
+                if (!l2cap_mode_supported(pi->mode, pi->conn->feat_mask))
+                        l2cap_send_disconn_req(pi->conn, sk);
                 break;
         default:
                 pi->mode = l2cap_select_mode(rfc.mode, pi->conn->feat_mask);
@@ -2286,11 +2286,7 @@ static inline int l2cap_config_req(struct l2cap_conn *conn, struct l2cap_cmd_hdr
         /* Complete config. */
         len = l2cap_parse_conf_req(sk, rsp);
         if (len < 0) {
-                struct l2cap_disconn_req req;
-                req.dcid = cpu_to_le16(l2cap_pi(sk)->dcid);
-                req.scid = cpu_to_le16(l2cap_pi(sk)->scid);
-                l2cap_send_cmd(conn, l2cap_get_ident(conn),
-                                        L2CAP_DISCONN_REQ, sizeof(req), &req);
+                l2cap_send_disconn_req(conn, sk);
                 goto unlock;
         }
 
@@ -2352,11 +2348,7 @@ static inline int l2cap_config_rsp(struct l2cap_conn *conn, struct l2cap_cmd_hdr
                         len = l2cap_parse_conf_rsp(sk, rsp->data,
                                                         len, req, &result);
                         if (len < 0) {
-                                struct l2cap_disconn_req req;
-                                req.dcid = cpu_to_le16(l2cap_pi(sk)->dcid);
-                                req.scid = cpu_to_le16(l2cap_pi(sk)->scid);
-                                l2cap_send_cmd(conn, l2cap_get_ident(conn),
-                                        L2CAP_DISCONN_REQ, sizeof(req), &req);
+                                l2cap_send_disconn_req(conn, sk);
                                 goto done;
                         }
 
@@ -2372,13 +2364,7 @@ static inline int l2cap_config_rsp(struct l2cap_conn *conn, struct l2cap_cmd_hdr
                 sk->sk_state = BT_DISCONN;
                 sk->sk_err = ECONNRESET;
                 l2cap_sock_set_timer(sk, HZ * 5);
-                {
-                        struct l2cap_disconn_req req;
-                        req.dcid = cpu_to_le16(l2cap_pi(sk)->dcid);
-                        req.scid = cpu_to_le16(l2cap_pi(sk)->scid);
-                        l2cap_send_cmd(conn, l2cap_get_ident(conn),
-                                        L2CAP_DISCONN_REQ, sizeof(req), &req);
-                }
+                l2cap_send_disconn_req(conn, sk);
                 goto done;
         }