Just remove compiler warning.
diff --git a/Demo/Common/ethernet/uIP/uip-1.0/uip/uip.c b/Demo/Common/ethernet/uIP/uip-1.0/uip/uip.c
index d323e99..bac2527 100644
--- a/Demo/Common/ethernet/uIP/uip-1.0/uip/uip.c
+++ b/Demo/Common/ethernet/uIP/uip-1.0/uip/uip.c
@@ -688,6 +688,8 @@
 {

   register struct uip_conn *uip_connr = uip_conn;

 

+  ( void ) all_ones_addr;

+

 #if UIP_UDP

   if(flag == UIP_UDP_SEND_CONN) {

     goto udp_send;