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authorLukas Wunner <lukas@wunner.de>2024-04-20 22:00:02 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2024-05-04 17:37:03 +0200
commitaa1fd9cdabaae0d558333c3f5cc9baaa8d83cb24 (patch)
treeb1b13073bd0a69e4385d85debf29dd7b0efff3fb
parent3cc50d07be10f67aff836f8247a240ec132c6a67 (diff)
hwmon: Use device_show_string() helper for sysfs attributes
Deduplicate sysfs ->show() callbacks which expose a string at a static memory location. Use the newly introduced device_show_string() helper in the driver core instead by declaring those sysfs attributes with DEVICE_STRING_ATTR_RO(). No functional change intended. Signed-off-by: Lukas Wunner <lukas@wunner.de> Acked-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/23c2031acaa64f1c02f00e817c3f7e4466d17ab2.1713608122.git.lukas@wunner.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--drivers/hwmon/i5k_amb.c15
-rw-r--r--drivers/hwmon/ibmpex.c14
2 files changed, 8 insertions, 21 deletions
diff --git a/drivers/hwmon/i5k_amb.c b/drivers/hwmon/i5k_amb.c
index ff48913fe6bf..02f5d35dd319 100644
--- a/drivers/hwmon/i5k_amb.c
+++ b/drivers/hwmon/i5k_amb.c
@@ -101,14 +101,7 @@ struct i5k_amb_data {
unsigned int num_attrs;
};
-static ssize_t name_show(struct device *dev, struct device_attribute *devattr,
- char *buf)
-{
- return sprintf(buf, "%s\n", DRVNAME);
-}
-
-
-static DEVICE_ATTR_RO(name);
+static DEVICE_STRING_ATTR_RO(name, 0444, DRVNAME);
static struct platform_device *amb_pdev;
@@ -373,7 +366,7 @@ static int i5k_amb_hwmon_init(struct platform_device *pdev)
}
}
- res = device_create_file(&pdev->dev, &dev_attr_name);
+ res = device_create_file(&pdev->dev, &dev_attr_name.attr);
if (res)
goto exit_remove;
@@ -386,7 +379,7 @@ static int i5k_amb_hwmon_init(struct platform_device *pdev)
return res;
exit_remove:
- device_remove_file(&pdev->dev, &dev_attr_name);
+ device_remove_file(&pdev->dev, &dev_attr_name.attr);
for (i = 0; i < data->num_attrs; i++)
device_remove_file(&pdev->dev, &data->attrs[i].s_attr.dev_attr);
kfree(data->attrs);
@@ -561,7 +554,7 @@ static void i5k_amb_remove(struct platform_device *pdev)
struct i5k_amb_data *data = platform_get_drvdata(pdev);
hwmon_device_unregister(data->hwmon_dev);
- device_remove_file(&pdev->dev, &dev_attr_name);
+ device_remove_file(&pdev->dev, &dev_attr_name.attr);
for (i = 0; i < data->num_attrs; i++)
device_remove_file(&pdev->dev, &data->attrs[i].s_attr.dev_attr);
kfree(data->attrs);
diff --git a/drivers/hwmon/ibmpex.c b/drivers/hwmon/ibmpex.c
index db066b368918..228c5f6c6f38 100644
--- a/drivers/hwmon/ibmpex.c
+++ b/drivers/hwmon/ibmpex.c
@@ -256,12 +256,7 @@ static struct ibmpex_bmc_data *get_bmc_data(int iface)
return NULL;
}
-static ssize_t name_show(struct device *dev, struct device_attribute *devattr,
- char *buf)
-{
- return sprintf(buf, "%s\n", DRVNAME);
-}
-static SENSOR_DEVICE_ATTR_RO(name, name, 0);
+static DEVICE_STRING_ATTR_RO(name, 0444, DRVNAME);
static ssize_t ibmpex_show_sensor(struct device *dev,
struct device_attribute *devattr,
@@ -415,8 +410,7 @@ static int ibmpex_find_sensors(struct ibmpex_bmc_data *data)
if (err)
goto exit_remove;
- err = device_create_file(data->bmc_device,
- &sensor_dev_attr_name.dev_attr);
+ err = device_create_file(data->bmc_device, &dev_attr_name.attr);
if (err)
goto exit_remove;
@@ -425,7 +419,7 @@ static int ibmpex_find_sensors(struct ibmpex_bmc_data *data)
exit_remove:
device_remove_file(data->bmc_device,
&sensor_dev_attr_reset_high_low.dev_attr);
- device_remove_file(data->bmc_device, &sensor_dev_attr_name.dev_attr);
+ device_remove_file(data->bmc_device, &dev_attr_name.attr);
for (i = 0; i < data->num_sensors; i++)
for (j = 0; j < PEX_NUM_SENSOR_FUNCS; j++) {
if (!data->sensors[i].attr[j].dev_attr.attr.name)
@@ -516,7 +510,7 @@ static void ibmpex_bmc_delete(struct ibmpex_bmc_data *data)
device_remove_file(data->bmc_device,
&sensor_dev_attr_reset_high_low.dev_attr);
- device_remove_file(data->bmc_device, &sensor_dev_attr_name.dev_attr);
+ device_remove_file(data->bmc_device, &dev_attr_name.attr);
for (i = 0; i < data->num_sensors; i++)
for (j = 0; j < PEX_NUM_SENSOR_FUNCS; j++) {
if (!data->sensors[i].attr[j].dev_attr.attr.name)