diff --git a/drivers/staging/vt6656/tether.h b/drivers/staging/vt6656/tether.h
index 505cedf0207c..c278ef3dc741 100644
--- a/drivers/staging/vt6656/tether.h
+++ b/drivers/staging/vt6656/tether.h
@@ -197,12 +197,6 @@ typedef struct tagS802_11Header {
 S802_11Header, *PS802_11Header;
 
 /*---------------------  Export Macros ------------------------------*/
-// Frame type macro
-
-#define IS_NULL_ADDRESS(pbyEtherAddr) (             \
-    (*(PDWORD)(pbyEtherAddr) == 0L) &&              \
-    (*(PWORD)((PBYTE)(pbyEtherAddr) + 4) == 0)      \
-)
 
 /*---------------------  Export Classes  ----------------------------*/