From 866d6c8637379cf57c7a5d3960bfd5ab08e8db13 Mon Sep 17 00:00:00 2001
From: goldsimon <goldsimon@gmx.de>
Date: Thu, 6 Jul 2017 20:26:24 +0200
Subject: [PATCH] Make PBUF_LINK_ENCAPSULATION_HLEN default signed (unsigned
 would be OK, but too many defines are signed already and mixing them gets
 bad)

---
 src/include/lwip/opt.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/include/lwip/opt.h b/src/include/lwip/opt.h
index 2ae6d67c..c361dcc0 100644
--- a/src/include/lwip/opt.h
+++ b/src/include/lwip/opt.h
@@ -1443,7 +1443,7 @@
  * for an additional encapsulation header before ethernet headers (e.g. 802.11)
  */
 #if !defined PBUF_LINK_ENCAPSULATION_HLEN || defined __DOXYGEN__
-#define PBUF_LINK_ENCAPSULATION_HLEN    0u
+#define PBUF_LINK_ENCAPSULATION_HLEN    0
 #endif
 
 /**