rt2x00: Remove check for rf word 0

The only way rf_write() can be called with word 0 is
when the user sends the wrong word index through debugfs.
However the values which are send through debugfs are
validated using the RF_BASE and RF_SIZE macro values,
the most logical solution is to increase RF_BASE with 4
and decrease RF_SIZE with 4 (RF_SIZE has always been
1 word too big)
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/rt2x00/rt2400pci.c

@@ -114,9 +114,6 @@ static void rt2400pci_rf_write(struct rt2x00_dev *rt2x00dev,
 {
 	u32 reg;
 
-	if (!word)
-		return;
-
 	mutex_lock(&rt2x00dev->csr_mutex);
 
 	/*

drivers/net/wireless/rt2x00/rt2400pci.h

@@ -48,8 +48,8 @@
 #define EEPROM_SIZE			0x0100
 #define BBP_BASE			0x0000
 #define BBP_SIZE			0x0020
-#define RF_BASE				0x0000
-#define RF_SIZE				0x0010
+#define RF_BASE				0x0004
+#define RF_SIZE				0x000c
 
 /*
  * Number of TX queues.

drivers/net/wireless/rt2x00/rt2500pci.c

@@ -114,9 +114,6 @@ static void rt2500pci_rf_write(struct rt2x00_dev *rt2x00dev,
 {
 	u32 reg;
 
-	if (!word)
-		return;
-
 	mutex_lock(&rt2x00dev->csr_mutex);
 
 	/*

drivers/net/wireless/rt2x00/rt2500pci.h

@@ -59,8 +59,8 @@
 #define EEPROM_SIZE			0x0200
 #define BBP_BASE			0x0000
 #define BBP_SIZE			0x0040
-#define RF_BASE				0x0000
-#define RF_SIZE				0x0014
+#define RF_BASE				0x0004
+#define RF_SIZE				0x0010
 
 /*
  * Number of TX queues.

drivers/net/wireless/rt2x00/rt2500usb.c

@@ -204,9 +204,6 @@ static void rt2500usb_rf_write(struct rt2x00_dev *rt2x00dev,
 {
 	u16 reg;
 
-	if (!word)
-		return;
-
 	mutex_lock(&rt2x00dev->csr_mutex);
 
 	/*

drivers/net/wireless/rt2x00/rt2500usb.h

@@ -59,8 +59,8 @@
 #define EEPROM_SIZE			0x006a
 #define BBP_BASE			0x0000
 #define BBP_SIZE			0x0060
-#define RF_BASE				0x0000
-#define RF_SIZE				0x0014
+#define RF_BASE				0x0004
+#define RF_SIZE				0x0010
 
 /*
  * Number of TX queues.

drivers/net/wireless/rt2x00/rt61pci.c

@@ -123,9 +123,6 @@ static void rt61pci_rf_write(struct rt2x00_dev *rt2x00dev,
 {
 	u32 reg;
 
-	if (!word)
-		return;
-
 	mutex_lock(&rt2x00dev->csr_mutex);
 
 	/*

drivers/net/wireless/rt2x00/rt61pci.h

@@ -50,8 +50,8 @@
 #define EEPROM_SIZE			0x0100
 #define BBP_BASE			0x0000
 #define BBP_SIZE			0x0080
-#define RF_BASE				0x0000
-#define RF_SIZE				0x0014
+#define RF_BASE				0x0004
+#define RF_SIZE				0x0010
 
 /*
  * Number of TX queues.

drivers/net/wireless/rt2x00/rt73usb.c

@@ -122,9 +122,6 @@ static void rt73usb_rf_write(struct rt2x00_dev *rt2x00dev,
 {
 	u32 reg;
 
-	if (!word)
-		return;
-
 	mutex_lock(&rt2x00dev->csr_mutex);
 
 	/*

drivers/net/wireless/rt2x00/rt73usb.h

@@ -50,8 +50,8 @@
 #define EEPROM_SIZE			0x0100
 #define BBP_BASE			0x0000
 #define BBP_SIZE			0x0080
-#define RF_BASE				0x0000
-#define RF_SIZE				0x0014
+#define RF_BASE				0x0004
+#define RF_SIZE				0x0010
 
 /*
  * Number of TX queues.