[v2] i2c: core: Use DEVICE_ATTR_*() helper macros
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Message ID 20191113152306.13968-1-geert+renesas@glider.be
State New
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Series
  • [v2] i2c: core: Use DEVICE_ATTR_*() helper macros
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Commit Message

Geert Uytterhoeven Nov. 13, 2019, 3:23 p.m. UTC
Convert the i2c core sysfs attributes from DEVICE_ATTR() to
DEVICE_ATTR_*(), to reduce boilerplate.
This requires renaming some functions.

Although no suitable macro exists for the delete_device attribute,
rename i2c_sysfs_delete_device() to delete_device_store() for
consistency.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Luca Ceresoli <luca@lucaceresoli.net>
---
v2:
  - s/DEVICE_ATTR_RW/DEVICE_ATTR_*/ in summary and description,
  - Add Reviewed-by.
---
 drivers/i2c/i2c-core-base.c | 20 ++++++++++----------
 1 file changed, 10 insertions(+), 10 deletions(-)

Comments

Kieran Bingham Nov. 26, 2019, 12:57 p.m. UTC | #1
Hi Geert,

On 13/11/2019 15:23, Geert Uytterhoeven wrote:
> Convert the i2c core sysfs attributes from DEVICE_ATTR() to
> DEVICE_ATTR_*(), to reduce boilerplate.
> This requires renaming some functions.

Seems a nice cleanup.


> Although no suitable macro exists for the delete_device attribute,
> rename i2c_sysfs_delete_device() to delete_device_store() for
> consistency.
> 
> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
> Reviewed-by: Luca Ceresoli <luca@lucaceresoli.net>

Reviewed-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>


> ---
> v2:
>   - s/DEVICE_ATTR_RW/DEVICE_ATTR_*/ in summary and description,
>   - Add Reviewed-by.
> ---
>  drivers/i2c/i2c-core-base.c | 20 ++++++++++----------
>  1 file changed, 10 insertions(+), 10 deletions(-)
> 
> diff --git a/drivers/i2c/i2c-core-base.c b/drivers/i2c/i2c-core-base.c
> index 6a5183cffdfc3e82..c87bf5bcab3f1349 100644
> --- a/drivers/i2c/i2c-core-base.c
> +++ b/drivers/i2c/i2c-core-base.c
> @@ -449,15 +449,15 @@ static void i2c_client_dev_release(struct device *dev)
>  }
>  
>  static ssize_t
> -show_name(struct device *dev, struct device_attribute *attr, char *buf)
> +name_show(struct device *dev, struct device_attribute *attr, char *buf)
>  {
>  	return sprintf(buf, "%s\n", dev->type == &i2c_client_type ?
>  		       to_i2c_client(dev)->name : to_i2c_adapter(dev)->name);
>  }
> -static DEVICE_ATTR(name, S_IRUGO, show_name, NULL);
> +static DEVICE_ATTR_RO(name);
>  
>  static ssize_t
> -show_modalias(struct device *dev, struct device_attribute *attr, char *buf)
> +modalias_show(struct device *dev, struct device_attribute *attr, char *buf)
>  {
>  	struct i2c_client *client = to_i2c_client(dev);
>  	int len;
> @@ -472,7 +472,7 @@ show_modalias(struct device *dev, struct device_attribute *attr, char *buf)
>  
>  	return sprintf(buf, "%s%s\n", I2C_MODULE_PREFIX, client->name);
>  }
> -static DEVICE_ATTR(modalias, S_IRUGO, show_modalias, NULL);
> +static DEVICE_ATTR_RO(modalias);
>  
>  static struct attribute *i2c_dev_attrs[] = {
>  	&dev_attr_name.attr,
> @@ -1039,8 +1039,8 @@ EXPORT_SYMBOL_GPL(i2c_adapter_depth);
>   * the user to provide incorrect parameters.
>   */
>  static ssize_t
> -i2c_sysfs_new_device(struct device *dev, struct device_attribute *attr,
> -		     const char *buf, size_t count)
> +new_device_store(struct device *dev, struct device_attribute *attr,
> +		 const char *buf, size_t count)
>  {
>  	struct i2c_adapter *adap = to_i2c_adapter(dev);
>  	struct i2c_board_info info;
> @@ -1095,7 +1095,7 @@ i2c_sysfs_new_device(struct device *dev, struct device_attribute *attr,
>  
>  	return count;
>  }
> -static DEVICE_ATTR(new_device, S_IWUSR, NULL, i2c_sysfs_new_device);
> +static DEVICE_ATTR_WO(new_device);
>  
>  /*
>   * And of course let the users delete the devices they instantiated, if
> @@ -1107,8 +1107,8 @@ static DEVICE_ATTR(new_device, S_IWUSR, NULL, i2c_sysfs_new_device);
>   * the user to delete the wrong device.
>   */
>  static ssize_t
> -i2c_sysfs_delete_device(struct device *dev, struct device_attribute *attr,
> -			const char *buf, size_t count)
> +delete_device_store(struct device *dev, struct device_attribute *attr,
> +		    const char *buf, size_t count)
>  {
>  	struct i2c_adapter *adap = to_i2c_adapter(dev);
>  	struct i2c_client *client, *next;
> @@ -1151,7 +1151,7 @@ i2c_sysfs_delete_device(struct device *dev, struct device_attribute *attr,
>  	return res;
>  }
>  static DEVICE_ATTR_IGNORE_LOCKDEP(delete_device, S_IWUSR, NULL,
> -				   i2c_sysfs_delete_device);
> +				  delete_device_store);
>  
>  static struct attribute *i2c_adapter_attrs[] = {
>  	&dev_attr_name.attr,
>

Patch
diff mbox series

diff --git a/drivers/i2c/i2c-core-base.c b/drivers/i2c/i2c-core-base.c
index 6a5183cffdfc3e82..c87bf5bcab3f1349 100644
--- a/drivers/i2c/i2c-core-base.c
+++ b/drivers/i2c/i2c-core-base.c
@@ -449,15 +449,15 @@  static void i2c_client_dev_release(struct device *dev)
 }
 
 static ssize_t
-show_name(struct device *dev, struct device_attribute *attr, char *buf)
+name_show(struct device *dev, struct device_attribute *attr, char *buf)
 {
 	return sprintf(buf, "%s\n", dev->type == &i2c_client_type ?
 		       to_i2c_client(dev)->name : to_i2c_adapter(dev)->name);
 }
-static DEVICE_ATTR(name, S_IRUGO, show_name, NULL);
+static DEVICE_ATTR_RO(name);
 
 static ssize_t
-show_modalias(struct device *dev, struct device_attribute *attr, char *buf)
+modalias_show(struct device *dev, struct device_attribute *attr, char *buf)
 {
 	struct i2c_client *client = to_i2c_client(dev);
 	int len;
@@ -472,7 +472,7 @@  show_modalias(struct device *dev, struct device_attribute *attr, char *buf)
 
 	return sprintf(buf, "%s%s\n", I2C_MODULE_PREFIX, client->name);
 }
-static DEVICE_ATTR(modalias, S_IRUGO, show_modalias, NULL);
+static DEVICE_ATTR_RO(modalias);
 
 static struct attribute *i2c_dev_attrs[] = {
 	&dev_attr_name.attr,
@@ -1039,8 +1039,8 @@  EXPORT_SYMBOL_GPL(i2c_adapter_depth);
  * the user to provide incorrect parameters.
  */
 static ssize_t
-i2c_sysfs_new_device(struct device *dev, struct device_attribute *attr,
-		     const char *buf, size_t count)
+new_device_store(struct device *dev, struct device_attribute *attr,
+		 const char *buf, size_t count)
 {
 	struct i2c_adapter *adap = to_i2c_adapter(dev);
 	struct i2c_board_info info;
@@ -1095,7 +1095,7 @@  i2c_sysfs_new_device(struct device *dev, struct device_attribute *attr,
 
 	return count;
 }
-static DEVICE_ATTR(new_device, S_IWUSR, NULL, i2c_sysfs_new_device);
+static DEVICE_ATTR_WO(new_device);
 
 /*
  * And of course let the users delete the devices they instantiated, if
@@ -1107,8 +1107,8 @@  static DEVICE_ATTR(new_device, S_IWUSR, NULL, i2c_sysfs_new_device);
  * the user to delete the wrong device.
  */
 static ssize_t
-i2c_sysfs_delete_device(struct device *dev, struct device_attribute *attr,
-			const char *buf, size_t count)
+delete_device_store(struct device *dev, struct device_attribute *attr,
+		    const char *buf, size_t count)
 {
 	struct i2c_adapter *adap = to_i2c_adapter(dev);
 	struct i2c_client *client, *next;
@@ -1151,7 +1151,7 @@  i2c_sysfs_delete_device(struct device *dev, struct device_attribute *attr,
 	return res;
 }
 static DEVICE_ATTR_IGNORE_LOCKDEP(delete_device, S_IWUSR, NULL,
-				   i2c_sysfs_delete_device);
+				  delete_device_store);
 
 static struct attribute *i2c_adapter_attrs[] = {
 	&dev_attr_name.attr,