From af71b7a1ed3a87a3835521c43f68d05042ce904f Mon Sep 17 00:00:00 2001
From: Gregory Nutt <gnutt@nuttx.org>
Date: Fri, 23 Jan 2015 11:42:12 -0600
Subject: [PATCH] Networking:  Eliminate a warning with UDP checksums are
 suppressed

---
 net/udp/udp_input.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/net/udp/udp_input.c b/net/udp/udp_input.c
index 3176e7daff8..f699e74ffbe 100644
--- a/net/udp/udp_input.c
+++ b/net/udp/udp_input.c
@@ -99,7 +99,9 @@ static int udp_input(FAR struct net_driver_s *dev, unsigned int iplen)
   FAR struct udp_conn_s *conn;
   unsigned int udpiplen;
   unsigned int hdrlen;
+#ifdef CONFIG_NET_UDP_CHECKSUMS
   uint16_t chksum;
+#endif
   int ret = OK;
 
   /* Update the count of UDP packets received */