Re: [PATCH RESEND v2] perf/x86/intel/uncore: Use sysfs_emit() in uncore_event_show()

Reviewed-by: Dapeng Mi <[email protected]>

On 7/26/2026 5:41 PM, Thorsten Blum wrote:
> Replace sprintf() with sysfs_emit() in uncore_event_show(). sysfs_emit()
> is preferred for formatting sysfs output because it provides safer
> bounds checking.
>
> Add a terminating newline as suggested by checkpatch.
>
> Acked-by: Namhyung Kim <[email protected]>
> Signed-off-by: Thorsten Blum <[email protected]>
> ---
> Changes in v2:
> - Add a terminating newline as suggested by checkpatch
> - Link to v1: https://lore.kernel.org/r/[email protected]/
> ---
>  arch/x86/events/intel/uncore.c | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/arch/x86/events/intel/uncore.c b/arch/x86/events/intel/uncore.c
> index 7857959c6e82..1ef4b4a5f545 100644
> --- a/arch/x86/events/intel/uncore.c
> +++ b/arch/x86/events/intel/uncore.c
> @@ -1,5 +1,6 @@
>  // SPDX-License-Identifier: GPL-2.0-only
>  #include <linux/module.h>
> +#include <linux/sysfs.h>
>  
>  #include <asm/cpu_device_id.h>
>  #include <asm/intel-family.h>
> @@ -153,7 +154,7 @@ ssize_t uncore_event_show(struct device *dev,
>  {
>  	struct uncore_event_desc *event =
>  		container_of(attr, struct uncore_event_desc, attr);
> -	return sprintf(buf, "%s", event->config);
> +	return sysfs_emit(buf, "%s\n", event->config);
>  }
>  
>  struct intel_uncore_box *uncore_pmu_to_box(struct intel_uncore_pmu *pmu, int cpu)
>