diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index f27fd20..25f8710 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -88,6 +88,8 @@
 #define NETDEV_TX_BUSY 1	/* driver tx path was busy*/
 #define NETDEV_TX_LOCKED -1	/* driver tx lock was already taken */
 
+#ifdef  __KERNEL__
+
 /*
  *	Compute the worst case header length according to the protocols
  *	used.
@@ -114,6 +116,8 @@
 #define MAX_HEADER (LL_MAX_HEADER + 48)
 #endif
 
+#endif  /*  __KERNEL__  */
+
 struct net_device_subqueue
 {
 	/* Give a control state for each queue.  This struct may contain