hwmon/sis5595: Use dynamic sysfs callbacks
Jean Delvare [Sat, 9 Jun 2007 14:11:16 +0000 (10:11 -0400)]
This lets us get rid of macro-generated functions and shrinks the
driver size by about 7%.

Signed-off-by: Jean Delvare <khali@linux-fr.org>

drivers/hwmon/sis5595.c

index c56bae3..cf31b4b 100644 (file)
@@ -56,6 +56,7 @@
 #include <linux/pci.h>
 #include <linux/platform_device.h>
 #include <linux/hwmon.h>
+#include <linux/hwmon-sysfs.h>
 #include <linux/err.h>
 #include <linux/init.h>
 #include <linux/jiffies.h>
@@ -204,28 +205,39 @@ static struct platform_driver sis5595_driver = {
 };
 
 /* 4 Voltages */
-static ssize_t show_in(struct device *dev, char *buf, int nr)
+static ssize_t show_in(struct device *dev, struct device_attribute *da,
+                      char *buf)
 {
        struct sis5595_data *data = sis5595_update_device(dev);
+       struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
+       int nr = attr->index;
        return sprintf(buf, "%d\n", IN_FROM_REG(data->in[nr]));
 }
 
-static ssize_t show_in_min(struct device *dev, char *buf, int nr)
+static ssize_t show_in_min(struct device *dev, struct device_attribute *da,
+                          char *buf)
 {
        struct sis5595_data *data = sis5595_update_device(dev);
+       struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
+       int nr = attr->index;
        return sprintf(buf, "%d\n", IN_FROM_REG(data->in_min[nr]));
 }
 
-static ssize_t show_in_max(struct device *dev, char *buf, int nr)
+static ssize_t show_in_max(struct device *dev, struct device_attribute *da,
+                          char *buf)
 {
        struct sis5595_data *data = sis5595_update_device(dev);
+       struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
+       int nr = attr->index;
        return sprintf(buf, "%d\n", IN_FROM_REG(data->in_max[nr]));
 }
 
-static ssize_t set_in_min(struct device *dev, const char *buf,
-              size_t count, int nr)
+static ssize_t set_in_min(struct device *dev, struct device_attribute *da,
+                         const char *buf, size_t count)
 {
        struct sis5595_data *data = dev_get_drvdata(dev);
+       struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
+       int nr = attr->index;
        unsigned long val = simple_strtoul(buf, NULL, 10);
 
        mutex_lock(&data->update_lock);
@@ -235,10 +247,12 @@ static ssize_t set_in_min(struct device *dev, const char *buf,
        return count;
 }
 
-static ssize_t set_in_max(struct device *dev, const char *buf,
-              size_t count, int nr)
+static ssize_t set_in_max(struct device *dev, struct device_attribute *da,
+                         const char *buf, size_t count)
 {
        struct sis5595_data *data = dev_get_drvdata(dev);
+       struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
+       int nr = attr->index;
        unsigned long val = simple_strtoul(buf, NULL, 10);
 
        mutex_lock(&data->update_lock);
@@ -249,37 +263,12 @@ static ssize_t set_in_max(struct device *dev, const char *buf,
 }
 
 #define show_in_offset(offset)                                 \
-static ssize_t                                                 \
-       show_in##offset (struct device *dev, struct device_attribute *attr, char *buf)          \
-{                                                              \
-       return show_in(dev, buf, offset);                       \
-}                                                              \
-static DEVICE_ATTR(in##offset##_input, S_IRUGO,                \
-               show_in##offset, NULL);                         \
-static ssize_t                                                 \
-       show_in##offset##_min (struct device *dev, struct device_attribute *attr, char *buf)    \
-{                                                              \
-       return show_in_min(dev, buf, offset);                   \
-}                                                              \
-static ssize_t                                                 \
-       show_in##offset##_max (struct device *dev, struct device_attribute *attr, char *buf)    \
-{                                                              \
-       return show_in_max(dev, buf, offset);                   \
-}                                                              \
-static ssize_t set_in##offset##_min (struct device *dev, struct device_attribute *attr,        \
-               const char *buf, size_t count)                  \
-{                                                              \
-       return set_in_min(dev, buf, count, offset);             \
-}                                                              \
-static ssize_t set_in##offset##_max (struct device *dev, struct device_attribute *attr,        \
-               const char *buf, size_t count)                  \
-{                                                              \
-       return set_in_max(dev, buf, count, offset);             \
-}                                                              \
-static DEVICE_ATTR(in##offset##_min, S_IRUGO | S_IWUSR,                \
-               show_in##offset##_min, set_in##offset##_min);   \
-static DEVICE_ATTR(in##offset##_max, S_IRUGO | S_IWUSR,                \
-               show_in##offset##_max, set_in##offset##_max);
+static SENSOR_DEVICE_ATTR(in##offset##_input, S_IRUGO,         \
+               show_in, NULL, offset);                         \
+static SENSOR_DEVICE_ATTR(in##offset##_min, S_IRUGO | S_IWUSR, \
+               show_in_min, set_in_min, offset);               \
+static SENSOR_DEVICE_ATTR(in##offset##_max, S_IRUGO | S_IWUSR, \
+               show_in_max, set_in_max, offset);
 
 show_in_offset(0);
 show_in_offset(1);
@@ -337,24 +326,32 @@ static DEVICE_ATTR(temp1_max_hyst, S_IRUGO | S_IWUSR,
                show_temp_hyst, set_temp_hyst);
 
 /* 2 Fans */
-static ssize_t show_fan(struct device *dev, char *buf, int nr)
+static ssize_t show_fan(struct device *dev, struct device_attribute *da,
+                       char *buf)
 {
        struct sis5595_data *data = sis5595_update_device(dev);
+       struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
+       int nr = attr->index;
        return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan[nr],
                DIV_FROM_REG(data->fan_div[nr])) );
 }
 
-static ssize_t show_fan_min(struct device *dev, char *buf, int nr)
+static ssize_t show_fan_min(struct device *dev, struct device_attribute *da,
+                           char *buf)
 {
        struct sis5595_data *data = sis5595_update_device(dev);
+       struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
+       int nr = attr->index;
        return sprintf(buf,"%d\n", FAN_FROM_REG(data->fan_min[nr],
                DIV_FROM_REG(data->fan_div[nr])) );
 }
 
-static ssize_t set_fan_min(struct device *dev, const char *buf,
-               size_t count, int nr)
+static ssize_t set_fan_min(struct device *dev, struct device_attribute *da,
+                          const char *buf, size_t count)
 {
        struct sis5595_data *data = dev_get_drvdata(dev);
+       struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
+       int nr = attr->index;
        unsigned long val = simple_strtoul(buf, NULL, 10);
 
        mutex_lock(&data->update_lock);
@@ -364,9 +361,12 @@ static ssize_t set_fan_min(struct device *dev, const char *buf,
        return count;
 }
 
-static ssize_t show_fan_div(struct device *dev, char *buf, int nr)
+static ssize_t show_fan_div(struct device *dev, struct device_attribute *da,
+                           char *buf)
 {
        struct sis5595_data *data = sis5595_update_device(dev);
+       struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
+       int nr = attr->index;
        return sprintf(buf, "%d\n", DIV_FROM_REG(data->fan_div[nr]) );
 }
 
@@ -374,10 +374,12 @@ static ssize_t show_fan_div(struct device *dev, char *buf, int nr)
    determined in part by the fan divisor.  This follows the principle of
    least surprise; the user doesn't expect the fan minimum to change just
    because the divisor changed. */
-static ssize_t set_fan_div(struct device *dev, const char *buf,
-       size_t count, int nr)
+static ssize_t set_fan_div(struct device *dev, struct device_attribute *da,
+                          const char *buf, size_t count)
 {
        struct sis5595_data *data = dev_get_drvdata(dev);
+       struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
+       int nr = attr->index;
        unsigned long min;
        unsigned long val = simple_strtoul(buf, NULL, 10);
        int reg;
@@ -416,46 +418,16 @@ static ssize_t set_fan_div(struct device *dev, const char *buf,
 }
 
 #define show_fan_offset(offset)                                                \
-static ssize_t show_fan_##offset (struct device *dev, struct device_attribute *attr, char *buf)        \
-{                                                                      \
-       return show_fan(dev, buf, offset - 1);                  \
-}                                                                      \
-static ssize_t show_fan_##offset##_min (struct device *dev, struct device_attribute *attr, char *buf)  \
-{                                                                      \
-       return show_fan_min(dev, buf, offset - 1);                      \
-}                                                                      \
-static ssize_t show_fan_##offset##_div (struct device *dev, struct device_attribute *attr, char *buf)  \
-{                                                                      \
-       return show_fan_div(dev, buf, offset - 1);                      \
-}                                                                      \
-static ssize_t set_fan_##offset##_min (struct device *dev, struct device_attribute *attr,              \
-               const char *buf, size_t count)                          \
-{                                                                      \
-       return set_fan_min(dev, buf, count, offset - 1);                \
-}                                                                      \
-static DEVICE_ATTR(fan##offset##_input, S_IRUGO, show_fan_##offset, NULL);\
-static DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR,               \
-               show_fan_##offset##_min, set_fan_##offset##_min);
+static SENSOR_DEVICE_ATTR(fan##offset##_input, S_IRUGO,                        \
+               show_fan, NULL, offset - 1);                            \
+static SENSOR_DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR,                \
+               show_fan_min, set_fan_min, offset - 1);                 \
+static SENSOR_DEVICE_ATTR(fan##offset##_div, S_IRUGO | S_IWUSR,                \
+               show_fan_div, set_fan_div, offset - 1);
 
 show_fan_offset(1);
 show_fan_offset(2);
 
-static ssize_t set_fan_1_div(struct device *dev, struct device_attribute *attr, const char *buf,
-               size_t count)
-{
-       return set_fan_div(dev, buf, count, 0) ;
-}
-
-static ssize_t set_fan_2_div(struct device *dev, struct device_attribute *attr, const char *buf,
-               size_t count)
-{
-       return set_fan_div(dev, buf, count, 1) ;
-}
-static DEVICE_ATTR(fan1_div, S_IRUGO | S_IWUSR,
-               show_fan_1_div, set_fan_1_div);
-static DEVICE_ATTR(fan2_div, S_IRUGO | S_IWUSR,
-               show_fan_2_div, set_fan_2_div);
-
 /* Alarms */
 static ssize_t show_alarms(struct device *dev, struct device_attribute *attr, char *buf)
 {
@@ -473,25 +445,25 @@ static ssize_t show_name(struct device *dev, struct device_attribute *attr,
 static DEVICE_ATTR(name, S_IRUGO, show_name, NULL);
 
 static struct attribute *sis5595_attributes[] = {
-       &dev_attr_in0_input.attr,
-       &dev_attr_in0_min.attr,
-       &dev_attr_in0_max.attr,
-       &dev_attr_in1_input.attr,
-       &dev_attr_in1_min.attr,
-       &dev_attr_in1_max.attr,
-       &dev_attr_in2_input.attr,
-       &dev_attr_in2_min.attr,
-       &dev_attr_in2_max.attr,
-       &dev_attr_in3_input.attr,
-       &dev_attr_in3_min.attr,
-       &dev_attr_in3_max.attr,
-
-       &dev_attr_fan1_input.attr,
-       &dev_attr_fan1_min.attr,
-       &dev_attr_fan1_div.attr,
-       &dev_attr_fan2_input.attr,
-       &dev_attr_fan2_min.attr,
-       &dev_attr_fan2_div.attr,
+       &sensor_dev_attr_in0_input.dev_attr.attr,
+       &sensor_dev_attr_in0_min.dev_attr.attr,
+       &sensor_dev_attr_in0_max.dev_attr.attr,
+       &sensor_dev_attr_in1_input.dev_attr.attr,
+       &sensor_dev_attr_in1_min.dev_attr.attr,
+       &sensor_dev_attr_in1_max.dev_attr.attr,
+       &sensor_dev_attr_in2_input.dev_attr.attr,
+       &sensor_dev_attr_in2_min.dev_attr.attr,
+       &sensor_dev_attr_in2_max.dev_attr.attr,
+       &sensor_dev_attr_in3_input.dev_attr.attr,
+       &sensor_dev_attr_in3_min.dev_attr.attr,
+       &sensor_dev_attr_in3_max.dev_attr.attr,
+
+       &sensor_dev_attr_fan1_input.dev_attr.attr,
+       &sensor_dev_attr_fan1_min.dev_attr.attr,
+       &sensor_dev_attr_fan1_div.dev_attr.attr,
+       &sensor_dev_attr_fan2_input.dev_attr.attr,
+       &sensor_dev_attr_fan2_min.dev_attr.attr,
+       &sensor_dev_attr_fan2_div.dev_attr.attr,
 
        &dev_attr_alarms.attr,
        &dev_attr_name.attr,
@@ -503,9 +475,9 @@ static const struct attribute_group sis5595_group = {
 };
 
 static struct attribute *sis5595_attributes_opt[] = {
-       &dev_attr_in4_input.attr,
-       &dev_attr_in4_min.attr,
-       &dev_attr_in4_max.attr,
+       &sensor_dev_attr_in4_input.dev_attr.attr,
+       &sensor_dev_attr_in4_min.dev_attr.attr,
+       &sensor_dev_attr_in4_max.dev_attr.attr,
 
        &dev_attr_temp1_input.attr,
        &dev_attr_temp1_max.attr,
@@ -570,11 +542,11 @@ static int __devinit sis5595_probe(struct platform_device *pdev)
                goto exit_free;
        if (data->maxins == 4) {
                if ((err = device_create_file(&pdev->dev,
-                                             &dev_attr_in4_input))
+                                       &sensor_dev_attr_in4_input.dev_attr))
                 || (err = device_create_file(&pdev->dev,
-                                             &dev_attr_in4_min))
+                                       &sensor_dev_attr_in4_min.dev_attr))
                 || (err = device_create_file(&pdev->dev,
-                                             &dev_attr_in4_max)))
+                                       &sensor_dev_attr_in4_max.dev_attr)))
                        goto exit_remove_files;
        } else {
                if ((err = device_create_file(&pdev->dev,