From 32de036490515f3d2ced152033a24a67fb563c5f Mon Sep 17 00:00:00 2001
From: Gregory Nutt <gnutt@nuttx.org>
Date: Tue, 25 Aug 2015 20:09:12 -0600
Subject: [PATCH] Local loopback:  Set the IFF_UP flags during initialization
 because the local loopback device is always up

---
 Documentation          | 2 +-
 configs                | 2 +-
 drivers/net/loopback.c | 4 ++++
 3 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/Documentation b/Documentation
index 8a30728ae9..ce750c0899 160000
--- a/Documentation
+++ b/Documentation
@@ -1 +1 @@
-Subproject commit 8a30728ae9a64496f0c9a0ff5dd62bd3b022c145
+Subproject commit ce750c0899c2138b37b52a48d020a3eceb92fd04
diff --git a/configs b/configs
index e1e1873700..e3f37812a9 160000
--- a/configs
+++ b/configs
@@ -1 +1 @@
-Subproject commit e1e1873700ffda7aeb632e2b1234333d88ce3457
+Subproject commit e3f37812a9a7595a7ddab1a625ebe857d104beb2
diff --git a/drivers/net/loopback.c b/drivers/net/loopback.c
index 5e2a12d1e3..83aa983657 100644
--- a/drivers/net/loopback.c
+++ b/drivers/net/loopback.c
@@ -49,6 +49,7 @@
 #include <debug.h>
 
 #include <arpa/inet.h>
+#include <net/if.h>
 
 #include <nuttx/arch.h>
 #include <nuttx/irq.h>
@@ -532,13 +533,16 @@ int localhost_initialize(void)
   net_ipv4addr_copy(priv->lo_dev.d_draddr, g_lo_ipv4addr);
   net_ipv4addr_copy(priv->lo_dev.d_netmask, g_lo_ipv4mask);
 #endif
+
 #ifdef CONFIG_NET_IPv6
  net_ipv6addr_copy(priv->lo_dev.d_ipv6addr, g_lo_ipv6addr);
  net_ipv6addr_copy(priv->lo_dev.d_ipv6draddr, g_lo_ipv6addr);
  net_ipv6addr_copy(priv->lo_dev.d_ipv6netmask, g_ipv6_alloneaddr);
 #endif
+
   /* Put the network in the UP state */
 
+  priv->lo_dev.d_flags = IFF_UP;
   return lo_ifup(&priv->lo_dev);
 }