[PATCH] hwmon: use sysfs_emit() to instead of scnprintf()

From: ye.xingchen
Date: Wed Nov 30 2022 - 22:30:45 EST


From: ye xingchen <ye.xingchen@xxxxxxxxxx>

Replace the open-code with sysfs_emit() to simplify the code.

Signed-off-by: ye xingchen <ye.xingchen@xxxxxxxxxx>
---
drivers/hwmon/ds1621.c | 2 +-
drivers/hwmon/lm73.c | 6 +++---
drivers/hwmon/sht3x.c | 12 ++++++------
3 files changed, 10 insertions(+), 10 deletions(-)

diff --git a/drivers/hwmon/ds1621.c b/drivers/hwmon/ds1621.c
index 0886abf6ebab..e803d6393b9e 100644
--- a/drivers/hwmon/ds1621.c
+++ b/drivers/hwmon/ds1621.c
@@ -269,7 +269,7 @@ static ssize_t update_interval_show(struct device *dev,
struct device_attribute *da, char *buf)
{
struct ds1621_data *data = dev_get_drvdata(dev);
- return scnprintf(buf, PAGE_SIZE, "%hu\n", data->update_interval);
+ return sysfs_emit(buf, "%hu\n", data->update_interval);
}

static ssize_t update_interval_store(struct device *dev,
diff --git a/drivers/hwmon/lm73.c b/drivers/hwmon/lm73.c
index 1346b3b3f463..b6433ae2d75c 100644
--- a/drivers/hwmon/lm73.c
+++ b/drivers/hwmon/lm73.c
@@ -92,7 +92,7 @@ static ssize_t temp_show(struct device *dev, struct device_attribute *da,
/* use integer division instead of equivalent right shift to
guarantee arithmetic shift and preserve the sign */
temp = (((s16) err) * 250) / 32;
- return scnprintf(buf, PAGE_SIZE, "%d\n", temp);
+ return sysfs_emit(buf, "%d\n", temp);
}

static ssize_t convrate_store(struct device *dev, struct device_attribute *da,
@@ -137,7 +137,7 @@ static ssize_t convrate_show(struct device *dev, struct device_attribute *da,
int res;

res = (data->ctrl & LM73_CTRL_RES_MASK) >> LM73_CTRL_RES_SHIFT;
- return scnprintf(buf, PAGE_SIZE, "%hu\n", lm73_convrates[res]);
+ return sysfs_emit(buf, "%hu\n", lm73_convrates[res]);
}

static ssize_t maxmin_alarm_show(struct device *dev,
@@ -154,7 +154,7 @@ static ssize_t maxmin_alarm_show(struct device *dev,
data->ctrl = ctrl;
mutex_unlock(&data->lock);

- return scnprintf(buf, PAGE_SIZE, "%d\n", (ctrl >> attr->index) & 1);
+ return sysfs_emit(buf, "%d\n", (ctrl >> attr->index) & 1);

abort:
mutex_unlock(&data->lock);
diff --git a/drivers/hwmon/sht3x.c b/drivers/hwmon/sht3x.c
index 3f279aa1cee5..8305e44d9ab2 100644
--- a/drivers/hwmon/sht3x.c
+++ b/drivers/hwmon/sht3x.c
@@ -320,7 +320,7 @@ static ssize_t temp1_limit_show(struct device *dev,
u8 index = to_sensor_dev_attr(attr)->index;
int temperature_limit = data->temperature_limits[index];

- return scnprintf(buf, PAGE_SIZE, "%d\n", temperature_limit);
+ return sysfs_emit(buf, "%d\n", temperature_limit);
}

static ssize_t humidity1_limit_show(struct device *dev,
@@ -331,7 +331,7 @@ static ssize_t humidity1_limit_show(struct device *dev,
u8 index = to_sensor_dev_attr(attr)->index;
u32 humidity_limit = data->humidity_limits[index];

- return scnprintf(buf, PAGE_SIZE, "%u\n", humidity_limit);
+ return sysfs_emit(buf, "%u\n", humidity_limit);
}

/*
@@ -483,7 +483,7 @@ static ssize_t temp1_alarm_show(struct device *dev,
if (ret)
return ret;

- return scnprintf(buf, PAGE_SIZE, "%d\n", !!(buffer[0] & 0x04));
+ return sysfs_emit(buf, "%d\n", !!(buffer[0] & 0x04));
}

static ssize_t humidity1_alarm_show(struct device *dev,
@@ -498,7 +498,7 @@ static ssize_t humidity1_alarm_show(struct device *dev,
if (ret)
return ret;

- return scnprintf(buf, PAGE_SIZE, "%d\n", !!(buffer[0] & 0x08));
+ return sysfs_emit(buf, "%d\n", !!(buffer[0] & 0x08));
}

static ssize_t heater_enable_show(struct device *dev,
@@ -513,7 +513,7 @@ static ssize_t heater_enable_show(struct device *dev,
if (ret)
return ret;

- return scnprintf(buf, PAGE_SIZE, "%d\n", !!(buffer[0] & 0x20));
+ return sysfs_emit(buf, "%d\n", !!(buffer[0] & 0x20));
}

static ssize_t heater_enable_store(struct device *dev,
@@ -550,7 +550,7 @@ static ssize_t update_interval_show(struct device *dev,
{
struct sht3x_data *data = dev_get_drvdata(dev);

- return scnprintf(buf, PAGE_SIZE, "%u\n",
+ return sysfs_emit(buf, "%u\n",
mode_to_update_interval[data->mode]);
}

--
2.25.1