tipc: merge port message reception into socket reception function

In order to reduce complexity and save a call level during message
reception at port/socket level, we remove the function tipc_port_rcv()
and merge its functionality into tipc_sk_rcv().

Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
Reviewed-by: Ying Xue <ying.xue@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/tipc/link.c b/net/tipc/link.c
index 24d0587..ad2c57f 100644
--- a/net/tipc/link.c
+++ b/net/tipc/link.c
@@ -37,6 +37,7 @@
 #include "core.h"
 #include "link.h"
 #include "port.h"
+#include "socket.h"
 #include "name_distr.h"
 #include "discover.h"
 #include "config.h"
@@ -1590,7 +1591,7 @@
 		case TIPC_HIGH_IMPORTANCE:
 		case TIPC_CRITICAL_IMPORTANCE:
 			tipc_node_unlock(n_ptr);
-			tipc_port_rcv(buf);
+			tipc_sk_rcv(buf);
 			continue;
 		case MSG_BUNDLER:
 			l_ptr->stats.recv_bundles++;