From 732cac1c0eceabcade0004b41089e7542c14b8e0 Mon Sep 17 00:00:00 2001
From: goldsimon <goldsimon>
Date: Tue, 7 Jun 2011 19:10:55 +0000
Subject: [PATCH] Moved static variable from inside the function to global
 scope

---
 src/core/dhcp.c  | 7 +++++--
 src/core/netif.c | 5 +++--
 2 files changed, 8 insertions(+), 4 deletions(-)

diff --git a/src/core/dhcp.c b/src/core/dhcp.c
index ad2ad8fd..ecfe283b 100644
--- a/src/core/dhcp.c
+++ b/src/core/dhcp.c
@@ -126,6 +126,11 @@ u32_t dhcp_rx_options_val[DHCP_OPTION_IDX_MAX];
     @todo: move this into struct dhcp? */
 u8_t  dhcp_rx_options_given[DHCP_OPTION_IDX_MAX];
 
+#ifdef DHCP_GLOBAL_XID
+static u32_t xid;
+static u8_t xid_initialised;
+#endif /* DHCP_GLOBAL_XID */
+
 #define dhcp_option_given(dhcp, idx)          (dhcp_rx_options_given[idx] != 0)
 #define dhcp_got_option(dhcp, idx)            (dhcp_rx_options_given[idx] = 1)
 #define dhcp_clear_option(dhcp, idx)          (dhcp_rx_options_given[idx] = 0)
@@ -1628,8 +1633,6 @@ dhcp_create_msg(struct netif *netif, struct dhcp *dhcp, u8_t message_type)
    *  at runtime, any supporting function prototypes can be defined in DHCP_GLOBAL_XID_HEADER */
   static u32_t xid = 0xABCD0000;
 #else
-  static u32_t xid;
-  static u8_t xid_initialised = 0;
   if (!xid_initialised) {
     xid = DHCP_GLOBAL_XID;
     xid_initialised = !xid_initialised;
diff --git a/src/core/netif.c b/src/core/netif.c
index f58ba1ab..754f1112 100644
--- a/src/core/netif.c
+++ b/src/core/netif.c
@@ -82,6 +82,8 @@
 struct netif *netif_list;
 struct netif *netif_default;
 
+static u8_t netif_num;
+
 #if LWIP_HAVE_LOOPIF
 static struct netif loop_netif;
 
@@ -144,7 +146,6 @@ struct netif *
 netif_add(struct netif *netif, ip_addr_t *ipaddr, ip_addr_t *netmask,
   ip_addr_t *gw, void *state, netif_init_fn init, netif_input_fn input)
 {
-  static u8_t netifnum = 0;
 #if LWIP_IPV6
   u32_t i;
 #endif
@@ -200,7 +201,7 @@ netif_add(struct netif *netif, ip_addr_t *ipaddr, ip_addr_t *netmask,
 
   /* remember netif specific state information data */
   netif->state = state;
-  netif->num = netifnum++;
+  netif->num = netif_num++;
   netif->input = input;
   NETIF_SET_HWADDRHINT(netif, NULL);
 #if ENABLE_LOOPBACK && LWIP_LOOPBACK_MAX_PBUFS