diff --git a/include/linux/compat.h b/include/linux/compat.h
index 8311d2e..224c7a8 100644
--- a/include/linux/compat.h
+++ b/include/linux/compat.h
@@ -166,8 +166,6 @@
 };
 
 struct compat_ifreq {
-#define IFHWADDRLEN     6
-#define IFNAMSIZ        16
         union {
                 char    ifrn_name[IFNAMSIZ];            /* if name, e.g. "en0" */
         } ifr_ifrn;