diff --git a/drivers/staging/vt6655/mac.h b/drivers/staging/vt6655/mac.h
index 3037502c1883..b8f543aef716 100644
--- a/drivers/staging/vt6655/mac.h
+++ b/drivers/staging/vt6655/mac.h
@@ -544,11 +544,11 @@ do {									\
 	iowrite8(byData | (bit_mask), iobase + reg_offset);		\
 } while (0)
 
-#define MACvWordRegBitsOn(iobase, reg_offset, wBits)			\
+#define MACvWordRegBitsOn(iobase, reg_offset, bit_mask)		\
 do {									\
 	unsigned short wData;						\
 	wData = ioread16(iobase + reg_offset);				\
-	iowrite16(wData | (wBits), iobase + reg_offset);		\
+	iowrite16(wData | (bit_mask), iobase + reg_offset);		\
 } while (0)
 
 #define MACvRegBitsOff(iobase, reg_offset, bit_mask)			\
@@ -558,11 +558,11 @@ do {									\
 	iowrite8(byData & ~(bit_mask), iobase + reg_offset);		\
 } while (0)
 
-#define MACvWordRegBitsOff(iobase, reg_offset, wBits)			\
+#define MACvWordRegBitsOff(iobase, reg_offset, bit_mask)		\
 do {									\
 	unsigned short wData;						\
 	wData = ioread16(iobase + reg_offset);				\
-	iowrite16(wData & ~(wBits), iobase + reg_offset);		\
+	iowrite16(wData & ~(bit_mask), iobase + reg_offset);		\
 } while (0)
 
 #define MACvReceive0(iobase)						\