[PATCH v2] bus: fsl-mc: Replace snprintf and sprintf with sysfs_emit in sysfs show functions
Christophe Leroy
christophe.leroy at csgroup.eu
Tue Sep 23 00:58:21 AEST 2025
Le 22/08/2025 à 14:43, Chelsy Ratnawat a écrit :
> [Vous ne recevez pas souvent de courriers de chelsyratnawat2001 at gmail.com. Découvrez pourquoi ceci est important à https://aka.ms/LearnAboutSenderIdentification ]
>
> Use sysfs_emit() instead of snprintf()/sprintf() when writing
> to sysfs buffers, as recommended by the kernel documentation.
>
> Signed-off-by: Chelsy Ratnawat <chelsyratnawat2001 at gmail.com>
> ---
> Changes in v2:
> - replace sprintf() with sysfs_emit() in modalias_show()
> - change commit msg to include the change for sprintf
>
> drivers/bus/fsl-mc/fsl-mc-bus.c | 6 +++---
> 1 file changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/bus/fsl-mc/fsl-mc-bus.c b/drivers/bus/fsl-mc/fsl-mc-bus.c
> index c1c0a4759c7e..88fea34a55b9 100644
> --- a/drivers/bus/fsl-mc/fsl-mc-bus.c
> +++ b/drivers/bus/fsl-mc/fsl-mc-bus.c
> @@ -176,8 +176,8 @@ static ssize_t modalias_show(struct device *dev, struct device_attribute *attr,
> {
> struct fsl_mc_device *mc_dev = to_fsl_mc_device(dev);
>
> - return sprintf(buf, "fsl-mc:v%08Xd%s\n", mc_dev->obj_desc.vendor,
> - mc_dev->obj_desc.type);
> + return sysfs_emit(buf, "fsl-mc:v%08Xd%s\n", mc_dev->obj_desc.vendor,
> + mc_dev->obj_desc.type);
> }
> static DEVICE_ATTR_RO(modalias);
>
> @@ -203,7 +203,7 @@ static ssize_t driver_override_show(struct device *dev,
> {
> struct fsl_mc_device *mc_dev = to_fsl_mc_device(dev);
>
> - return snprintf(buf, PAGE_SIZE, "%s\n", mc_dev->driver_override);
> + return sysfs_emit(buf, "%s\n", mc_dev->driver_override);
> }
> static DEVICE_ATTR_RW(driver_override);
>
> --
> 2.47.3
>
>
Applied, thanks!
Christophe
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