rename new rfkill sysfs knobs

This patch renames the (never officially released) sysfs-knobs
"blocked_hw" and "blocked_sw" to "hard" and "soft", as the hardware vs
software conotation is misleading.

It also gets rid of not needed locks around u32-read-access.
Signed-off-by: Florian Mickler <florian@mickler.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

Documentation/ABI/stable/sysfs-class-rfkill

@@ -4,7 +4,7 @@ For details to this subsystem look at Documentation/rfkill.txt.
 
 For the deprecated /sys/class/rfkill/*/state and
 /sys/class/rfkill/*/claim knobs of this interface look in
-Documentation/ABI/obsolte/sysfs-class-rfkill.
+Documentation/ABI/obsolete/sysfs-class-rfkill.
 
 What: 		/sys/class/rfkill
 Date:		09-Jul-2007
@@ -42,8 +42,8 @@ Values: 	A numeric value.
 		1: true
 
 
-What:		/sys/class/rfkill/rfkill[0-9]+/blocked_hw
-Date:		23-Feb-2010
+What:		/sys/class/rfkill/rfkill[0-9]+/hard
+Date:		12-March-2010
 KernelVersion	v2.6.34
 Contact:	linux-wireless@vger.kernel.org
 Description: 	Current hardblock state. This file is read only.
@@ -55,8 +55,8 @@ Values: 	A numeric value.
 			the driver's control.
 
 
-What:		/sys/class/rfkill/rfkill[0-9]+/blocked_sw
-Date:		23-Feb-2010
+What:		/sys/class/rfkill/rfkill[0-9]+/soft
+Date:		12-March-2010
 KernelVersion	v2.6.34
 Contact:	linux-wireless@vger.kernel.org
 Description:	Current softblock state. This file is read and write.

net/rfkill/core.c

@@ -628,37 +628,25 @@ static ssize_t rfkill_persistent_show(struct device *dev,
 	return sprintf(buf, "%d\n", rfkill->persistent);
 }
 
-static ssize_t rfkill_blocked_hw_show(struct device *dev,
+static ssize_t rfkill_hard_show(struct device *dev,
 				 struct device_attribute *attr,
 				 char *buf)
 {
 	struct rfkill *rfkill = to_rfkill(dev);
-	unsigned long flags;
-	u32 state;
 
-	spin_lock_irqsave(&rfkill->lock, flags);
-	state = rfkill->state;
-	spin_unlock_irqrestore(&rfkill->lock, flags);
-
-	return sprintf(buf, "%d\n", (state & RFKILL_BLOCK_HW) ? 1 : 0 );
+	return sprintf(buf, "%d\n", (rfkill->state & RFKILL_BLOCK_HW) ? 1 : 0 );
 }
 
-static ssize_t rfkill_blocked_sw_show(struct device *dev,
+static ssize_t rfkill_soft_show(struct device *dev,
 				 struct device_attribute *attr,
 				 char *buf)
 {
 	struct rfkill *rfkill = to_rfkill(dev);
-	unsigned long flags;
-	u32 state;
-
-	spin_lock_irqsave(&rfkill->lock, flags);
-	state = rfkill->state;
-	spin_unlock_irqrestore(&rfkill->lock, flags);
 
-	return sprintf(buf, "%d\n", (state & RFKILL_BLOCK_SW) ? 1 : 0 );
+	return sprintf(buf, "%d\n", (rfkill->state & RFKILL_BLOCK_SW) ? 1 : 0 );
 }
 
-static ssize_t rfkill_blocked_sw_store(struct device *dev,
+static ssize_t rfkill_soft_store(struct device *dev,
 				  struct device_attribute *attr,
 				  const char *buf, size_t count)
 {
@@ -698,14 +686,8 @@ static ssize_t rfkill_state_show(struct device *dev,
 				 char *buf)
 {
 	struct rfkill *rfkill = to_rfkill(dev);
-	unsigned long flags;
-	u32 state;
-
-	spin_lock_irqsave(&rfkill->lock, flags);
-	state = rfkill->state;
-	spin_unlock_irqrestore(&rfkill->lock, flags);
 
-	return sprintf(buf, "%d\n", user_state_from_blocked(state));
+	return sprintf(buf, "%d\n", user_state_from_blocked(rfkill->state));
 }
 
 static ssize_t rfkill_state_store(struct device *dev,
@@ -755,9 +737,8 @@ static struct device_attribute rfkill_dev_attrs[] = {
 	__ATTR(persistent, S_IRUGO, rfkill_persistent_show, NULL),
 	__ATTR(state, S_IRUGO|S_IWUSR, rfkill_state_show, rfkill_state_store),
 	__ATTR(claim, S_IRUGO|S_IWUSR, rfkill_claim_show, rfkill_claim_store),
-	__ATTR(sw, S_IRUGO|S_IWUSR, rfkill_blocked_sw_show,
-			rfkill_blocked_sw_store),
-	__ATTR(hw, S_IRUGO, rfkill_blocked_hw_show, NULL),
+	__ATTR(soft, S_IRUGO|S_IWUSR, rfkill_soft_show, rfkill_soft_store),
+	__ATTR(hard, S_IRUGO, rfkill_hard_show, NULL),
 	__ATTR_NULL
 };