diff -r 237b71828a9d master/ethernet.h
--- a/master/ethernet.h	Tue Jul 06 18:30:35 2010 +0200
+++ b/master/ethernet.h	Mon Jul 12 18:56:45 2010 +0200
@@ -39,6 +39,7 @@
 
 #include <linux/list.h>
 #include <linux/netdevice.h>
+#include <linux/semaphore.h>
 
 #include "globals.h"
 #include "slave.h"