diff mbox series

[v2] platform/x86: samsung-laptop: Use sysfs_emit() to replace the old interface sprintf()

Message ID 20240419064106.2396705-1-jiangyunshui@kylinos.cn (mailing list archive)
State Accepted, archived
Headers show
Series [v2] platform/x86: samsung-laptop: Use sysfs_emit() to replace the old interface sprintf() | expand

Commit Message

yunshui April 19, 2024, 6:41 a.m. UTC
As Documentation/filesystems/sysfs.rst suggested,
    show() should only use sysfs_emit() or sysfs_emit_at() when formatting
    the value to be returned to user space.

Signed-off-by: yunshui <jiangyunshui@kylinos.cn>
Reviewed-by: Ai Chao <aichao@kylinos.cn>
---
 drivers/platform/x86/samsung-laptop.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

Comments

Hans de Goede April 22, 2024, 1:42 p.m. UTC | #1
Hi,

On 4/19/24 8:41 AM, yunshui wrote:
>     As Documentation/filesystems/sysfs.rst suggested,
>     show() should only use sysfs_emit() or sysfs_emit_at() when formatting
>     the value to be returned to user space.
> 
> Signed-off-by: yunshui <jiangyunshui@kylinos.cn>
> Reviewed-by: Ai Chao <aichao@kylinos.cn>

Thank you for your patch, I've applied this patch to my review-hans 
branch:
https://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86.git/log/?h=review-hans

Note it will show up in my review-hans branch once I've pushed my
local branch there, which might take a while.

Once I've run some tests on this branch the patches there will be
added to the platform-drivers-x86/for-next branch and eventually
will be included in the pdx86 pull-request to Linus for the next
merge-window.

Regards,

Hans



> ---
>  drivers/platform/x86/samsung-laptop.c | 10 +++++-----
>  1 file changed, 5 insertions(+), 5 deletions(-)
> 
> diff --git a/drivers/platform/x86/samsung-laptop.c b/drivers/platform/x86/samsung-laptop.c
> index b4aa8ba35d2d..3d2f8e758369 100644
> --- a/drivers/platform/x86/samsung-laptop.c
> +++ b/drivers/platform/x86/samsung-laptop.c
> @@ -661,9 +661,9 @@ static ssize_t get_performance_level(struct device *dev,
>  	/* The logic is backwards, yeah, lots of fun... */
>  	for (i = 0; config->performance_levels[i].name; ++i) {
>  		if (sretval.data[0] == config->performance_levels[i].value)
> -			return sprintf(buf, "%s\n", config->performance_levels[i].name);
> +			return sysfs_emit(buf, "%s\n", config->performance_levels[i].name);
>  	}
> -	return sprintf(buf, "%s\n", "unknown");
> +	return sysfs_emit(buf, "%s\n", "unknown");
>  }
>  
>  static ssize_t set_performance_level(struct device *dev,
> @@ -744,7 +744,7 @@ static ssize_t get_battery_life_extender(struct device *dev,
>  	if (ret < 0)
>  		return ret;
>  
> -	return sprintf(buf, "%d\n", ret);
> +	return sysfs_emit(buf, "%d\n", ret);
>  }
>  
>  static ssize_t set_battery_life_extender(struct device *dev,
> @@ -813,7 +813,7 @@ static ssize_t get_usb_charge(struct device *dev,
>  	if (ret < 0)
>  		return ret;
>  
> -	return sprintf(buf, "%d\n", ret);
> +	return sysfs_emit(buf, "%d\n", ret);
>  }
>  
>  static ssize_t set_usb_charge(struct device *dev,
> @@ -878,7 +878,7 @@ static ssize_t get_lid_handling(struct device *dev,
>  	if (ret < 0)
>  		return ret;
>  
> -	return sprintf(buf, "%d\n", ret);
> +	return sysfs_emit(buf, "%d\n", ret);
>  }
>  
>  static ssize_t set_lid_handling(struct device *dev,
diff mbox series

Patch

diff --git a/drivers/platform/x86/samsung-laptop.c b/drivers/platform/x86/samsung-laptop.c
index b4aa8ba35d2d..3d2f8e758369 100644
--- a/drivers/platform/x86/samsung-laptop.c
+++ b/drivers/platform/x86/samsung-laptop.c
@@ -661,9 +661,9 @@  static ssize_t get_performance_level(struct device *dev,
 	/* The logic is backwards, yeah, lots of fun... */
 	for (i = 0; config->performance_levels[i].name; ++i) {
 		if (sretval.data[0] == config->performance_levels[i].value)
-			return sprintf(buf, "%s\n", config->performance_levels[i].name);
+			return sysfs_emit(buf, "%s\n", config->performance_levels[i].name);
 	}
-	return sprintf(buf, "%s\n", "unknown");
+	return sysfs_emit(buf, "%s\n", "unknown");
 }
 
 static ssize_t set_performance_level(struct device *dev,
@@ -744,7 +744,7 @@  static ssize_t get_battery_life_extender(struct device *dev,
 	if (ret < 0)
 		return ret;
 
-	return sprintf(buf, "%d\n", ret);
+	return sysfs_emit(buf, "%d\n", ret);
 }
 
 static ssize_t set_battery_life_extender(struct device *dev,
@@ -813,7 +813,7 @@  static ssize_t get_usb_charge(struct device *dev,
 	if (ret < 0)
 		return ret;
 
-	return sprintf(buf, "%d\n", ret);
+	return sysfs_emit(buf, "%d\n", ret);
 }
 
 static ssize_t set_usb_charge(struct device *dev,
@@ -878,7 +878,7 @@  static ssize_t get_lid_handling(struct device *dev,
 	if (ret < 0)
 		return ret;
 
-	return sprintf(buf, "%d\n", ret);
+	return sysfs_emit(buf, "%d\n", ret);
 }
 
 static ssize_t set_lid_handling(struct device *dev,