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

From: Thorsten Blum

Date: Tue Apr 21 2026 - 11:07:18 EST


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.

Signed-off-by: Thorsten Blum <thorsten.blum@xxxxxxxxx>
---
Changes in v2:
- Add a terminating newline as suggested by checkpatch
- Link to v1: https://lore.kernel.org/lkml/20260206194254.36105-2-thorsten.blum@xxxxxxxxx/
---
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 4684649109d9..86bc1c03b64a 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>
@@ -133,7 +134,7 @@ 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)