diff --git a/drivers/staging/vt6655/device_main.c b/drivers/staging/vt6655/device_main.c
index 8db655742bd4..ab6456fc2b3f 100644
--- a/drivers/staging/vt6655/device_main.c
+++ b/drivers/staging/vt6655/device_main.c
@@ -216,6 +216,15 @@ static void vt6655_mac_dma_ctl(void __iomem *iobase, u8 reg_index)
 		iowrite32(DMACTL_RUN, iobase + reg_index);
 }
 
+static void MACvEnableProtectMD(void __iomem *iobase)
+{
+	u32 reg_value;
+
+	reg_value = ioread32(iobase + MAC_REG_ENCFG);
+	reg_value = reg_value | ENCFG_PROTECTMD;
+	iowrite32(reg_value, iobase + MAC_REG_ENCFG);
+}
+
 /*
  * Initialisation of MAC & BBP registers
  */
diff --git a/drivers/staging/vt6655/mac.h b/drivers/staging/vt6655/mac.h
index 467c599a3289..84d203c56b1f 100644
--- a/drivers/staging/vt6655/mac.h
+++ b/drivers/staging/vt6655/mac.h
@@ -543,14 +543,6 @@
 #define MACvSelectPage1(iobase)				\
 	iowrite8(1, iobase + MAC_REG_PAGE1SEL)
 
-#define MACvEnableProtectMD(iobase)					\
-do {									\
-	unsigned long dwOrgValue;					\
-	dwOrgValue = ioread32(iobase + MAC_REG_ENCFG);			\
-	dwOrgValue = dwOrgValue | ENCFG_PROTECTMD;			\
-	iowrite32((u32)dwOrgValue, iobase + MAC_REG_ENCFG);		\
-} while (0)
-
 #define MACvDisableProtectMD(iobase)					\
 do {									\
 	unsigned long dwOrgValue;					\