tipc: Don't create payload message using connection protocol routine

Modifies the logic that creates a connection termination payload
message so that it no longer (mis)uses a routine that creates a
connection protocol message. The revised code is now more easily
understood, and avoids setting several fields that are either not
present in payload messages or were being set more than once.

Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>

1 files changed, 9 insertions, 8 deletions

diff --git a/net/tipc/port.c b/net/tipc/port.c
index 1b20b963a2f..ab0a8e97e31 100644
--- a/net/tipc/port.c
+++ b/net/tipc/port.c
@@ -539,14 +539,15 @@ void tipc_port_recv_proto_msg(struct sk_buff *buf)
         if (!p_ptr || !p_ptr->connected ||
             (port_peernode(p_ptr) != orignode) ||
             (port_peerport(p_ptr) != origport)) {
-                r_buf = port_build_proto_msg(origport,
-                                             orignode,
-                                             destport,
-                                             tipc_own_addr,
-                                             TIPC_HIGH_IMPORTANCE,
-                                             TIPC_CONN_MSG,
-                                             TIPC_ERR_NO_PORT,
-                                             0);
+                r_buf = tipc_buf_acquire(BASIC_H_SIZE);
+                if (r_buf) {
+                        msg = buf_msg(r_buf);
+                        tipc_msg_init(msg, TIPC_HIGH_IMPORTANCE, TIPC_CONN_MSG,
+                                      BASIC_H_SIZE, orignode);
+                        msg_set_errcode(msg, TIPC_ERR_NO_PORT);
+                        msg_set_origport(msg, destport);
+                        msg_set_destport(msg, origport);
+                }
                 if (p_ptr)
                         tipc_port_unlock(p_ptr);
                 goto exit;