From 1be6bf67903ed79124fc1ef41a71104e529f3287 Mon Sep 17 00:00:00 2001
From: Angus Gratton <angus@espressif.com>
Date: Tue, 5 Sep 2017 17:11:11 +1000
Subject: [PATCH] dhcpserver: Move list_node to implementation not public
 interface

Was unused in the public interface.

Closes https://github.com/espressif/esp-idf/issues/948
---
 components/lwip/apps/dhcpserver.c              | 7 ++++++-
 components/lwip/include/lwip/apps/dhcpserver.h | 5 -----
 2 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/components/lwip/apps/dhcpserver.c b/components/lwip/apps/dhcpserver.c
index 44ddd3368..685219c62 100644
--- a/components/lwip/apps/dhcpserver.c
+++ b/components/lwip/apps/dhcpserver.c
@@ -71,6 +71,11 @@
 #define DHCPS_STATE_IDLE 5
 #define DHCPS_STATE_RELEASE 6
 
+typedef struct _list_node {
+	void *pnode;
+	struct _list_node *pnext;
+} list_node;
+
 ////////////////////////////////////////////////////////////////////////////////////
 
 static const u32_t magic_cookie  = 0x63538263;
@@ -135,7 +140,7 @@ void *dhcps_option_info(u8_t op_id, u32_t opt_len)
  *                pinsert -- the insert node of the list
  * Returns      : none
 *******************************************************************************/
-void node_insert_to_list(list_node **phead, list_node *pinsert)
+static void node_insert_to_list(list_node **phead, list_node *pinsert)
 {
     list_node *plist = NULL;
     struct dhcps_pool *pdhcps_pool = NULL;
diff --git a/components/lwip/include/lwip/apps/dhcpserver.h b/components/lwip/include/lwip/apps/dhcpserver.h
index 9e361833d..77d018cef 100644
--- a/components/lwip/include/lwip/apps/dhcpserver.h
+++ b/components/lwip/include/lwip/apps/dhcpserver.h
@@ -176,11 +176,6 @@ struct dhcps_pool{
 	u32_t lease_timer;
 };
 
-typedef struct _list_node{
-	void *pnode;
-	struct _list_node *pnext;
-}list_node;
-
 typedef u32_t dhcps_time_t;
 typedef u8_t dhcps_offer_t;