Replace the existing /* fall through */ comments and its variants with
the new pseudo-keyword macro fallthrough[1].
[1] https://www.kernel.org/doc/html/latest/process/deprecated.html?highlight=fallthrough#implicit-switch-case-fall-through
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
                /* if closing a dlc in a session that hasn't been started,
                 * just close and unlink the dlc
                 */
-               /* fall through */
+               fallthrough;
 
        default:
                rfcomm_dlc_clear_timer(d);
 
        case BT_CONFIG:
        case BT_CONNECTED:
                rfcomm_dlc_close(d, 0);
-               /* fall through */
+               fallthrough;
 
        default:
                sock_set_flag(sk, SOCK_ZAPPED);