hwmon: (lm93) use permission-specific DEVICE_ATTR variants

Use DEVICE_ATTR_RO for read only attributes and DEVICE_ATTR_RW for
read/write attributes. This simplifies the source code, improves
readbility, and reduces the chance of inconsistencies.

The conversion was done automatically using coccinelle. It was validated
by compiling both the old and the new source code and comparing its text,
data, and bss size.

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
[groeck: Updated description]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>

drivers/hwmon/lm93.c

@@ -2156,7 +2156,7 @@ static SENSOR_DEVICE_ATTR(pwm2_auto_spinup_time, S_IWUSR | S_IRUGO,
 			  show_pwm_auto_spinup_time,
 			  store_pwm_auto_spinup_time, 1);
 
-static ssize_t show_pwm_auto_prochot_ramp(struct device *dev,
+static ssize_t pwm_auto_prochot_ramp_show(struct device *dev,
 				struct device_attribute *attr, char *buf)
 {
 	struct lm93_data *data = lm93_update_device(dev);
@@ -2164,7 +2164,7 @@ static ssize_t show_pwm_auto_prochot_ramp(struct device *dev,
 		       LM93_RAMP_FROM_REG(data->pwm_ramp_ctl >> 4 & 0x0f));
 }
 
-static ssize_t store_pwm_auto_prochot_ramp(struct device *dev,
+static ssize_t pwm_auto_prochot_ramp_store(struct device *dev,
 						struct device_attribute *attr,
 						const char *buf, size_t count)
 {
@@ -2186,11 +2186,9 @@ static ssize_t store_pwm_auto_prochot_ramp(struct device *dev,
 	return count;
 }
 
-static DEVICE_ATTR(pwm_auto_prochot_ramp, S_IRUGO | S_IWUSR,
-			show_pwm_auto_prochot_ramp,
-			store_pwm_auto_prochot_ramp);
+static DEVICE_ATTR_RW(pwm_auto_prochot_ramp);
 
-static ssize_t show_pwm_auto_vrdhot_ramp(struct device *dev,
+static ssize_t pwm_auto_vrdhot_ramp_show(struct device *dev,
 				struct device_attribute *attr, char *buf)
 {
 	struct lm93_data *data = lm93_update_device(dev);
@@ -2198,7 +2196,7 @@ static ssize_t show_pwm_auto_vrdhot_ramp(struct device *dev,
 		       LM93_RAMP_FROM_REG(data->pwm_ramp_ctl & 0x0f));
 }
 
-static ssize_t store_pwm_auto_vrdhot_ramp(struct device *dev,
+static ssize_t pwm_auto_vrdhot_ramp_store(struct device *dev,
 						struct device_attribute *attr,
 						const char *buf, size_t count)
 {
@@ -2220,9 +2218,7 @@ static ssize_t store_pwm_auto_vrdhot_ramp(struct device *dev,
 	return 0;
 }
 
-static DEVICE_ATTR(pwm_auto_vrdhot_ramp, S_IRUGO | S_IWUSR,
-			show_pwm_auto_vrdhot_ramp,
-			store_pwm_auto_vrdhot_ramp);
+static DEVICE_ATTR_RW(pwm_auto_vrdhot_ramp);
 
 static ssize_t show_vid(struct device *dev, struct device_attribute *attr,
 			char *buf)
@@ -2378,7 +2374,7 @@ static SENSOR_DEVICE_ATTR(prochot1_interval, S_IWUSR | S_IRUGO,
 static SENSOR_DEVICE_ATTR(prochot2_interval, S_IWUSR | S_IRUGO,
 			  show_prochot_interval, store_prochot_interval, 1);
 
-static ssize_t show_prochot_override_duty_cycle(struct device *dev,
+static ssize_t prochot_override_duty_cycle_show(struct device *dev,
 						struct device_attribute *attr,
 						char *buf)
 {
@@ -2386,7 +2382,7 @@ static ssize_t show_prochot_override_duty_cycle(struct device *dev,
 	return sprintf(buf, "%d\n", data->prochot_override & 0x0f);
 }
 
-static ssize_t store_prochot_override_duty_cycle(struct device *dev,
+static ssize_t prochot_override_duty_cycle_store(struct device *dev,
 						struct device_attribute *attr,
 						const char *buf, size_t count)
 {
@@ -2408,18 +2404,16 @@ static ssize_t store_prochot_override_duty_cycle(struct device *dev,
 	return count;
 }
 
-static DEVICE_ATTR(prochot_override_duty_cycle, S_IRUGO | S_IWUSR,
-			show_prochot_override_duty_cycle,
-			store_prochot_override_duty_cycle);
+static DEVICE_ATTR_RW(prochot_override_duty_cycle);
 
-static ssize_t show_prochot_short(struct device *dev,
+static ssize_t prochot_short_show(struct device *dev,
 				struct device_attribute *attr, char *buf)
 {
 	struct lm93_data *data = lm93_update_device(dev);
 	return sprintf(buf, "%d\n", (data->config & 0x10) ? 1 : 0);
 }
 
-static ssize_t store_prochot_short(struct device *dev,
+static ssize_t prochot_short_store(struct device *dev,
 					struct device_attribute *attr,
 					const char *buf, size_t count)
 {
@@ -2442,8 +2436,7 @@ static ssize_t store_prochot_short(struct device *dev,
 	return count;
 }
 
-static DEVICE_ATTR(prochot_short, S_IRUGO | S_IWUSR,
-		   show_prochot_short, store_prochot_short);
+static DEVICE_ATTR_RW(prochot_short);
 
 static ssize_t show_vrdhot(struct device *dev, struct device_attribute *attr,
 				char *buf)
@@ -2457,23 +2450,23 @@ static ssize_t show_vrdhot(struct device *dev, struct device_attribute *attr,
 static SENSOR_DEVICE_ATTR(vrdhot1, S_IRUGO, show_vrdhot, NULL, 0);
 static SENSOR_DEVICE_ATTR(vrdhot2, S_IRUGO, show_vrdhot, NULL, 1);
 
-static ssize_t show_gpio(struct device *dev, struct device_attribute *attr,
+static ssize_t gpio_show(struct device *dev, struct device_attribute *attr,
 				char *buf)
 {
 	struct lm93_data *data = lm93_update_device(dev);
 	return sprintf(buf, "%d\n", LM93_GPI_FROM_REG(data->gpi));
 }
 
-static DEVICE_ATTR(gpio, S_IRUGO, show_gpio, NULL);
+static DEVICE_ATTR_RO(gpio);
 
-static ssize_t show_alarms(struct device *dev, struct device_attribute *attr,
+static ssize_t alarms_show(struct device *dev, struct device_attribute *attr,
 				char *buf)
 {
 	struct lm93_data *data = lm93_update_device(dev);
 	return sprintf(buf, "%d\n", LM93_ALARMS_FROM_REG(data->block1));
 }
 
-static DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL);
+static DEVICE_ATTR_RO(alarms);
 
 static struct attribute *lm93_attrs[] = {
 	&sensor_dev_attr_in1_input.dev_attr.attr,