From e19c52ed6e3db44ceeef7f581683c046bfacf602 Mon Sep 17 00:00:00 2001
From: Gregory Nutt <gnutt@nuttx.org>
Date: Fri, 30 Jun 2017 10:13:31 -0600
Subject: [PATCH] 6LoWPAN fix compile issue in star hub configuration.

---
 net/sixlowpan/sixlowpan_udpsend.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/net/sixlowpan/sixlowpan_udpsend.c b/net/sixlowpan/sixlowpan_udpsend.c
index de8681baa7..686ae660ca 100644
--- a/net/sixlowpan/sixlowpan_udpsend.c
+++ b/net/sixlowpan/sixlowpan_udpsend.c
@@ -471,6 +471,7 @@ void sixlowpan_udp_send(FAR struct net_driver_s *dev,
           FAR uint8_t *buf;
           uint16_t hdrlen;
           uint16_t buflen;
+          int ret;
 
           /* Get the IEEE 802.15.4 MAC address of the destination.  This
            * assumes an encoding of the MAC address in the IPv6 address.