From 80fc094734a4839d6a66cc87d8ead5f833bd069a Mon Sep 17 00:00:00 2001
From: Gregory Nutt <gnutt@nuttx.org>
Date: Sat, 22 Nov 2014 07:14:17 -0600
Subject: [PATCH] Make tcp_listener static scope; it is not used outside of
 tcp_conn.c

---
 net/netdev/netdev_rxnotify.c |  2 +-
 net/route/net_router.c       |  2 +-
 net/tcp/tcp.h                | 14 --------
 net/tcp/tcp_conn.c           | 70 +++++++++++++++++-------------------
 4 files changed, 35 insertions(+), 53 deletions(-)

diff --git a/net/netdev/netdev_rxnotify.c b/net/netdev/netdev_rxnotify.c
index d3eba2d1ea..ce1b78f1ab 100644
--- a/net/netdev/netdev_rxnotify.c
+++ b/net/netdev/netdev_rxnotify.c
@@ -51,7 +51,7 @@
 #include "netdev/netdev.h"
 
 /****************************************************************************
- * Definitions
+ * Pre-processor Definitions
  ****************************************************************************/
 
 /****************************************************************************
diff --git a/net/route/net_router.c b/net/route/net_router.c
index 8dde05c1f1..86c37b457e 100644
--- a/net/route/net_router.c
+++ b/net/route/net_router.c
@@ -83,7 +83,7 @@ static int net_match(FAR struct net_route_s *route, FAR void *arg)
   FAR struct route_match_s *match = (FAR struct route_match_s *)arg;
 
   /* To match, the masked target addresses must be the same.  In the event
-   * of multiple matches, only the first is returned.  There not (yet) any
+   * of multiple matches, only the first is returned.  There is not (yet) any
    * concept for the precedence of networks.
    */
 
diff --git a/net/tcp/tcp.h b/net/tcp/tcp.h
index 67d902126a..9316408ad8 100644
--- a/net/tcp/tcp.h
+++ b/net/tcp/tcp.h
@@ -331,20 +331,6 @@ FAR struct tcp_conn_s *tcp_active(struct tcp_iphdr_s *buf);
 
 FAR struct tcp_conn_s *tcp_nextconn(FAR struct tcp_conn_s *conn);
 
-/****************************************************************************
- * Name: tcp_listener()
- *
- * Description:
- *   Given a local port number (in network byte order), find the TCP
- *   connection that listens on this this port.
- *
- *   Primary uses: (1) to determine if a port number is available, (2) to
- *   To identify the socket that will accept new connections on a local port.
- *
- ****************************************************************************/
-
-FAR struct tcp_conn_s *tcp_listener(uint16_t portno);
-
 /****************************************************************************
  * Name: tcp_alloc_accept()
  *
diff --git a/net/tcp/tcp_conn.c b/net/tcp/tcp_conn.c
index 666480012c..da8fc266a0 100644
--- a/net/tcp/tcp_conn.c
+++ b/net/tcp/tcp_conn.c
@@ -60,10 +60,6 @@
 #include "devif/devif.h"
 #include "tcp/tcp.h"
 
-/****************************************************************************
- * Public Data
- ****************************************************************************/
-
 /****************************************************************************
  * Private Data
  ****************************************************************************/
@@ -88,6 +84,39 @@ static uint16_t g_last_tcp_port;
  * Private Functions
  ****************************************************************************/
 
+/****************************************************************************
+ * Name: tcp_listener()
+ *
+ * Description:
+ *   Given a local port number (in network byte order), find the TCP
+ *   connection that listens on this this port.
+ *
+ *   Primary uses: (1) to determine if a port number is available, (2) to
+ *   To identify the socket that will accept new connections on a local port.
+ *
+ ****************************************************************************/
+
+static FAR struct tcp_conn_s *tcp_listener(uint16_t portno)
+{
+  FAR struct tcp_conn_s *conn;
+  int i;
+
+  /* Check if this port number is in use by any active UIP TCP connection */
+
+  for (i = 0; i < CONFIG_NET_TCP_CONNS; i++)
+    {
+      conn = &g_tcp_connections[i];
+      if (conn->tcpstateflags != TCP_CLOSED && conn->lport == portno)
+        {
+          /* The port number is in use, return the connection */
+
+          return conn;
+        }
+    }
+
+  return NULL;
+}
+
 /****************************************************************************
  * Name: tcp_selectport()
  *
@@ -462,39 +491,6 @@ FAR struct tcp_conn_s *tcp_nextconn(FAR struct tcp_conn_s *conn)
     }
 }
 
-/****************************************************************************
- * Name: tcp_listener()
- *
- * Description:
- *   Given a local port number (in network byte order), find the TCP
- *   connection that listens on this this port.
- *
- *   Primary uses: (1) to determine if a port number is available, (2) to
- *   To identify the socket that will accept new connections on a local port.
- *
- ****************************************************************************/
-
-FAR struct tcp_conn_s *tcp_listener(uint16_t portno)
-{
-  FAR struct tcp_conn_s *conn;
-  int i;
-
-  /* Check if this port number is in use by any active UIP TCP connection */
-
-  for (i = 0; i < CONFIG_NET_TCP_CONNS; i++)
-    {
-      conn = &g_tcp_connections[i];
-      if (conn->tcpstateflags != TCP_CLOSED && conn->lport == portno)
-        {
-          /* The port number is in use, return the connection */
-
-          return conn;
-        }
-    }
-
-  return NULL;
-}
-
 /****************************************************************************
  * Name: tcp_alloc_accept()
  *