From 53bc647a1a96189be53b68b9e8c40df0f42fc300 Mon Sep 17 00:00:00 2001
From: Ivo van Doorn <ivdoorn@gmail.com>
Date: Sun, 15 Feb 2009 17:42:48 +0100
Subject: [PATCH] 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 | 3 ---
 drivers/net/wireless/rt2x00/rt2400pci.h | 4 ++--
 drivers/net/wireless/rt2x00/rt2500pci.c | 3 ---
 drivers/net/wireless/rt2x00/rt2500pci.h | 4 ++--
 drivers/net/wireless/rt2x00/rt2500usb.c | 3 ---
 drivers/net/wireless/rt2x00/rt2500usb.h | 4 ++--
 drivers/net/wireless/rt2x00/rt61pci.c   | 3 ---
 drivers/net/wireless/rt2x00/rt61pci.h   | 4 ++--
 drivers/net/wireless/rt2x00/rt73usb.c   | 3 ---
 drivers/net/wireless/rt2x00/rt73usb.h   | 4 ++--
 10 files changed, 10 insertions(+), 25 deletions(-)

diff --git a/drivers/net/wireless/rt2x00/rt2400pci.c b/drivers/net/wireless/rt2x00/rt2400pci.c
index b0848259b45..0f08773328c 100644
--- a/drivers/net/wireless/rt2x00/rt2400pci.c
+++ b/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);
 
 	/*
diff --git a/drivers/net/wireless/rt2x00/rt2400pci.h b/drivers/net/wireless/rt2x00/rt2400pci.h
index 72ac31c3cb7..ec3b004ddc3 100644
--- a/drivers/net/wireless/rt2x00/rt2400pci.h
+++ b/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.
diff --git a/drivers/net/wireless/rt2x00/rt2500pci.c b/drivers/net/wireless/rt2x00/rt2500pci.c
index eb82860c54f..276a8232aaa 100644
--- a/drivers/net/wireless/rt2x00/rt2500pci.c
+++ b/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);
 
 	/*
diff --git a/drivers/net/wireless/rt2x00/rt2500pci.h b/drivers/net/wireless/rt2x00/rt2500pci.h
index 17a0c9c8c18..ce2f065c748 100644
--- a/drivers/net/wireless/rt2x00/rt2500pci.h
+++ b/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.
diff --git a/drivers/net/wireless/rt2x00/rt2500usb.c b/drivers/net/wireless/rt2x00/rt2500usb.c
index 270691ac236..ca280674180 100644
--- a/drivers/net/wireless/rt2x00/rt2500usb.c
+++ b/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);
 
 	/*
diff --git a/drivers/net/wireless/rt2x00/rt2500usb.h b/drivers/net/wireless/rt2x00/rt2500usb.h
index afce0e0322c..5bc46fe7217 100644
--- a/drivers/net/wireless/rt2x00/rt2500usb.h
+++ b/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.
diff --git a/drivers/net/wireless/rt2x00/rt61pci.c b/drivers/net/wireless/rt2x00/rt61pci.c
index 0be147f364e..2ca8b7a9722 100644
--- a/drivers/net/wireless/rt2x00/rt61pci.c
+++ b/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);
 
 	/*
diff --git a/drivers/net/wireless/rt2x00/rt61pci.h b/drivers/net/wireless/rt2x00/rt61pci.h
index 2f97fee7a8d..41e8959919f 100644
--- a/drivers/net/wireless/rt2x00/rt61pci.h
+++ b/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.
diff --git a/drivers/net/wireless/rt2x00/rt73usb.c b/drivers/net/wireless/rt2x00/rt73usb.c
index 8f522342b16..846996c6330 100644
--- a/drivers/net/wireless/rt2x00/rt73usb.c
+++ b/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);
 
 	/*
diff --git a/drivers/net/wireless/rt2x00/rt73usb.h b/drivers/net/wireless/rt2x00/rt73usb.h
index 834b28ce6cd..c8016f65b4b 100644
--- a/drivers/net/wireless/rt2x00/rt73usb.h
+++ b/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.