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hwmon: (w83627hf) use permission-specific DEVICE_ATTR variants 

Use DEVICE_ATTR_RO for read-only 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>
This commit is contained in:
Julia Lawall 2016-12-22 13:05:11 +01:00 committed by Guenter Roeck
parent 9bbacbfe0e
commit 8dfcdfc1e0
1 changed files with 28 additions and 25 deletions
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53
drivers/hwmon/w83627hf.c
View File

@ -575,26 +575,30 @@ static ssize_t show_in_0(struct w83627hf_data *data, char *buf, u8 reg)
return sprintf(buf,"%ld\n", in0);
}
static ssize_t show_regs_in_0(struct device *dev, struct device_attribute *attr, char *buf)
static ssize_t in0_input_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct w83627hf_data *data = w83627hf_update_device(dev);
return show_in_0(data, buf, data->in[0]);
}
static ssize_t show_regs_in_min0(struct device *dev, struct device_attribute *attr, char *buf)
static ssize_t in0_min_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct w83627hf_data *data = w83627hf_update_device(dev);
return show_in_0(data, buf, data->in_min[0]);
}
static ssize_t show_regs_in_max0(struct device *dev, struct device_attribute *attr, char *buf)
static ssize_t in0_max_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct w83627hf_data *data = w83627hf_update_device(dev);
return show_in_0(data, buf, data->in_max[0]);
}
static ssize_t store_regs_in_min0(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
static ssize_t in0_min_store(struct device *dev,
struct device_attribute *attr, const char *buf,
size_t count)
{
struct w83627hf_data *data = dev_get_drvdata(dev);
unsigned long val;
@ -622,8 +626,9 @@ static ssize_t store_regs_in_min0(struct device *dev, struct device_attribute *a
return count;
}
static ssize_t store_regs_in_max0(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
static ssize_t in0_max_store(struct device *dev,
struct device_attribute *attr, const char *buf,
size_t count)
{
struct w83627hf_data *data = dev_get_drvdata(dev);
unsigned long val;
@ -651,11 +656,9 @@ static ssize_t store_regs_in_max0(struct device *dev, struct device_attribute *a
return count;
}
static DEVICE_ATTR(in0_input, S_IRUGO, show_regs_in_0, NULL);
static DEVICE_ATTR(in0_min, S_IRUGO | S_IWUSR,
show_regs_in_min0, store_regs_in_min0);
static DEVICE_ATTR(in0_max, S_IRUGO | S_IWUSR,
show_regs_in_max0, store_regs_in_max0);
static DEVICE_ATTR_RO(in0_input);
static DEVICE_ATTR_RW(in0_min);
static DEVICE_ATTR_RW(in0_max);
static ssize_t
show_fan_input(struct device *dev, struct device_attribute *devattr, char *buf)
@ -796,21 +799,22 @@ sysfs_temp_decl(2);
sysfs_temp_decl(3);
static ssize_t
show_vid_reg(struct device *dev, struct device_attribute *attr, char *buf)
cpu0_vid_show(struct device *dev, struct device_attribute *attr, char *buf)
{
struct w83627hf_data *data = w83627hf_update_device(dev);
return sprintf(buf, "%ld\n", (long) vid_from_reg(data->vid, data->vrm));
}
static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid_reg, NULL);
static DEVICE_ATTR_RO(cpu0_vid);
static ssize_t
show_vrm_reg(struct device *dev, struct device_attribute *attr, char *buf)
vrm_show(struct device *dev, struct device_attribute *attr, char *buf)
{
struct w83627hf_data *data = dev_get_drvdata(dev);
return sprintf(buf, "%ld\n", (long) data->vrm);
}
static ssize_t
store_vrm_reg(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
vrm_store(struct device *dev, struct device_attribute *attr, const char *buf,
size_t count)
{
struct w83627hf_data *data = dev_get_drvdata(dev);
unsigned long val;
@ -826,15 +830,15 @@ store_vrm_reg(struct device *dev, struct device_attribute *attr, const char *buf
return count;
}
static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm_reg, store_vrm_reg);
static DEVICE_ATTR_RW(vrm);
static ssize_t
show_alarms_reg(struct device *dev, struct device_attribute *attr, char *buf)
alarms_show(struct device *dev, struct device_attribute *attr, char *buf)
{
struct w83627hf_data *data = w83627hf_update_device(dev);
return sprintf(buf, "%ld\n", (long) data->alarms);
}
static DEVICE_ATTR(alarms, S_IRUGO, show_alarms_reg, NULL);
static DEVICE_ATTR_RO(alarms);
static ssize_t
show_alarm(struct device *dev, struct device_attribute *attr, char *buf)
@ -860,7 +864,7 @@ static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 5);
static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 13);
static ssize_t
show_beep_mask(struct device *dev, struct device_attribute *attr, char *buf)
beep_mask_show(struct device *dev, struct device_attribute *attr, char *buf)
{
struct w83627hf_data *data = w83627hf_update_device(dev);
return sprintf(buf, "%ld\n",
@ -868,7 +872,7 @@ show_beep_mask(struct device *dev, struct device_attribute *attr, char *buf)
}
static ssize_t
store_beep_mask(struct device *dev, struct device_attribute *attr,
beep_mask_store(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
struct w83627hf_data *data = dev_get_drvdata(dev);
@ -895,8 +899,7 @@ store_beep_mask(struct device *dev, struct device_attribute *attr,
return count;
}
static DEVICE_ATTR(beep_mask, S_IRUGO | S_IWUSR,
show_beep_mask, store_beep_mask);
static DEVICE_ATTR_RW(beep_mask);
static ssize_t
show_beep(struct device *dev, struct device_attribute *attr, char *buf)
@ -1264,13 +1267,13 @@ sysfs_temp_type(2);
sysfs_temp_type(3);
static ssize_t
show_name(struct device *dev, struct device_attribute *devattr, char *buf)
name_show(struct device *dev, struct device_attribute *devattr, char *buf)
{
struct w83627hf_data *data = dev_get_drvdata(dev);
return sprintf(buf, "%s\n", data->name);
}
static DEVICE_ATTR(name, S_IRUGO, show_name, NULL);
static DEVICE_ATTR_RO(name);
static int __init w83627hf_find(int sioaddr, unsigned short *addr,
struct w83627hf_sio_data *sio_data)