diff --git a/drivers/staging/vt6655/mac.c b/drivers/staging/vt6655/mac.c
index 955dbfebe170b3b08351bcfa6bbb1f4b876e2e8b..122a6a3f60030c9134df83c99b0c96feb1f4bd4f 100644
--- a/drivers/staging/vt6655/mac.c
+++ b/drivers/staging/vt6655/mac.c
@@ -71,7 +71,6 @@
 #include "tmacro.h"
 #include "mac.h"
 
-unsigned short TxRate_iwconfig;//2008-5-8 <add> by chester
 /*---------------------  Static Classes  ----------------------------*/
 
 /*---------------------  Static Variables  --------------------------*/
diff --git a/drivers/staging/vt6655/mac.h b/drivers/staging/vt6655/mac.h
index 5391277a1a196db5b130c2abc9637ab76c4ccf9f..23162a90e9b8ae013848414743d29f943c3523ce 100644
--- a/drivers/staging/vt6655/mac.h
+++ b/drivers/staging/vt6655/mac.h
@@ -970,7 +970,6 @@ do {								\
 
 /*---------------------  Export Functions  --------------------------*/
 
-extern unsigned short TxRate_iwconfig;//2008-5-8 <add> by chester
 void MACvReadAllRegs(void __iomem *dwIoBase, unsigned char *pbyMacRegs);
 
 bool MACbIsRegBitsOn(void __iomem *dwIoBase, unsigned char byRegOfs, unsigned char byTestBits);