From 1cd2e137c1cf88c54035722d6917fef4fd7c8784 Mon Sep 17 00:00:00 2001
From: Costin Lupu <costin.lupu@cs.pub.ro>
Date: Thu, 12 Sep 2019 12:00:01 +0300
Subject: [PATCH] Enable loopback interface

The loopback interface is used in many of the Python 3 unit tests.

Signed-off-by: Costin Lupu <costin.lupu@cs.pub.ro>
Reviewed-by: Vlad-Andrei Badoiu	<vlad_andrei.badoiu@stud.acs.upb.ro>
---
 Config.uk          | 6 ++++++
 include/lwipopts.h | 4 ++++
 2 files changed, 10 insertions(+)

diff --git a/Config.uk b/Config.uk
index a0db41d..92df4d3 100644
--- a/Config.uk
+++ b/Config.uk
@@ -80,6 +80,12 @@ config LWIP_NETIF_STATUS_PRINT
 	help
 		Print netif status changes to standard console
 
+config LWIP_HAVE_LOOPIF
+	bool "Loopback interface"
+	default n
+	help
+		Enable loopback interface.
+
 config LWIP_IPV4
 	bool "IPv4 support"
 	default y
diff --git a/include/lwipopts.h b/include/lwipopts.h
index 559223d..148028d 100644
--- a/include/lwipopts.h
+++ b/include/lwipopts.h
@@ -95,6 +95,10 @@ void sys_free(void *ptr);
 #define LWIP_NETIF_EXT_STATUS_CALLBACK 0
 #endif /* CONFIG_LWIP_NETIF_EXT_STATUS_CALLBACK */
 
+#if CONFIG_LWIP_HAVE_LOOPIF
+#define LWIP_HAVE_LOOPIF 1
+#endif
+
 /**
  * ARP options
  */
-- 
2.39.5