From 1f4d4af4d7a1c794a4f003f75fcfd38fafb5dff3 Mon Sep 17 00:00:00 2001 From: Guenter Roeck Date: Sun, 21 Mar 2021 20:49:10 -0700 Subject: hwmon: replace snprintf in show functions with sysfs_emit coccicheck complains about the use of snprintf() in sysfs show functions. drivers/hwmon/ina3221.c:701:8-16: WARNING: use scnprintf or sprintf This results in a large number of patch submissions. Fix it all in one go using the following coccinelle rules. Use sysfs_emit instead of scnprintf or sprintf since that makes more sense. @depends on patch@ identifier show, dev, attr, buf; @@ ssize_t show(struct device *dev, struct device_attribute *attr, char *buf) { <... return - snprintf(buf, \( PAGE_SIZE \| PAGE_SIZE - 1 \), + sysfs_emit(buf, ...); ...> } @depends on patch@ identifier show, dev, attr, buf, rc; @@ ssize_t show(struct device *dev, struct device_attribute *attr, char *buf) { <... rc = - snprintf(buf, \( PAGE_SIZE \| PAGE_SIZE - 1 \), + sysfs_emit(buf, ...); ...> } While at it, remove unnecessary braces and as well as unnecessary else after return statements to address checkpatch warnings in the resulting patch. Cc: Zihao Tang Cc: Jay Fang Signed-off-by: Guenter Roeck --- drivers/hwmon/sch5636.c | 20 ++++++++++---------- 1 file changed, 10 insertions(+), 10 deletions(-) (limited to 'drivers/hwmon/sch5636.c') diff --git a/drivers/hwmon/sch5636.c b/drivers/hwmon/sch5636.c index 200bb2bfc986..5683a38740f6 100644 --- a/drivers/hwmon/sch5636.c +++ b/drivers/hwmon/sch5636.c @@ -160,7 +160,7 @@ static int reg_to_rpm(u16 reg) static ssize_t name_show(struct device *dev, struct device_attribute *devattr, char *buf) { - return snprintf(buf, PAGE_SIZE, "%s\n", DEVNAME); + return sysfs_emit(buf, "%s\n", DEVNAME); } static ssize_t in_value_show(struct device *dev, @@ -176,7 +176,7 @@ static ssize_t in_value_show(struct device *dev, val = DIV_ROUND_CLOSEST( data->in[attr->index] * SCH5636_REG_IN_FACTORS[attr->index], 255); - return snprintf(buf, PAGE_SIZE, "%d\n", val); + return sysfs_emit(buf, "%d\n", val); } static ssize_t in_label_show(struct device *dev, @@ -184,8 +184,8 @@ static ssize_t in_label_show(struct device *dev, { struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); - return snprintf(buf, PAGE_SIZE, "%s\n", - SCH5636_IN_LABELS[attr->index]); + return sysfs_emit(buf, "%s\n", + SCH5636_IN_LABELS[attr->index]); } static ssize_t temp_value_show(struct device *dev, @@ -199,7 +199,7 @@ static ssize_t temp_value_show(struct device *dev, return PTR_ERR(data); val = (data->temp_val[attr->index] - 64) * 1000; - return snprintf(buf, PAGE_SIZE, "%d\n", val); + return sysfs_emit(buf, "%d\n", val); } static ssize_t temp_fault_show(struct device *dev, @@ -213,7 +213,7 @@ static ssize_t temp_fault_show(struct device *dev, return PTR_ERR(data); val = (data->temp_ctrl[attr->index] & SCH5636_TEMP_WORKING) ? 0 : 1; - return snprintf(buf, PAGE_SIZE, "%d\n", val); + return sysfs_emit(buf, "%d\n", val); } static ssize_t temp_alarm_show(struct device *dev, @@ -227,7 +227,7 @@ static ssize_t temp_alarm_show(struct device *dev, return PTR_ERR(data); val = (data->temp_ctrl[attr->index] & SCH5636_TEMP_ALARM) ? 1 : 0; - return snprintf(buf, PAGE_SIZE, "%d\n", val); + return sysfs_emit(buf, "%d\n", val); } static ssize_t fan_value_show(struct device *dev, @@ -244,7 +244,7 @@ static ssize_t fan_value_show(struct device *dev, if (val < 0) return val; - return snprintf(buf, PAGE_SIZE, "%d\n", val); + return sysfs_emit(buf, "%d\n", val); } static ssize_t fan_fault_show(struct device *dev, @@ -258,7 +258,7 @@ static ssize_t fan_fault_show(struct device *dev, return PTR_ERR(data); val = (data->fan_ctrl[attr->index] & SCH5636_FAN_NOT_PRESENT) ? 1 : 0; - return snprintf(buf, PAGE_SIZE, "%d\n", val); + return sysfs_emit(buf, "%d\n", val); } static ssize_t fan_alarm_show(struct device *dev, @@ -272,7 +272,7 @@ static ssize_t fan_alarm_show(struct device *dev, return PTR_ERR(data); val = (data->fan_ctrl[attr->index] & SCH5636_FAN_ALARM) ? 1 : 0; - return snprintf(buf, PAGE_SIZE, "%d\n", val); + return sysfs_emit(buf, "%d\n", val); } static struct sensor_device_attribute sch5636_attr[] = { -- cgit v1.2.3