From: Thorsten Blum <thorsten.blum@linux.dev>
To: Peter Zijlstra <peterz@infradead.org>,
Ingo Molnar <mingo@redhat.com>,
Arnaldo Carvalho de Melo <acme@kernel.org>,
Namhyung Kim <namhyung@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Alexander Shishkin <alexander.shishkin@linux.intel.com>,
Jiri Olsa <jolsa@kernel.org>, Ian Rogers <irogers@google.com>,
Adrian Hunter <adrian.hunter@intel.com>,
James Clark <james.clark@linaro.org>,
Thomas Gleixner <tglx@kernel.org>, Borislav Petkov <bp@alien8.de>,
Dave Hansen <dave.hansen@linux.intel.com>,
x86@kernel.org, "H. Peter Anvin" <hpa@zytor.com>
Cc: Thorsten Blum <thorsten.blum@linux.dev>,
linux-perf-users@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH] perf/x86/intel/uncore: Use sysfs_emit in uncore_event_show
Date: Fri, 6 Feb 2026 20:42:54 +0100 [thread overview]
Message-ID: <20260206194254.36105-2-thorsten.blum@linux.dev> (raw)
Replace sprintf() with sysfs_emit() in uncore_event_show(). sysfs_emit()
is preferred to format sysfs output as it provides better bounds
checking.
Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
---
checkpatch warns about a missing terminating newline. Please let me know
if this should be added.
---
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 e228e564b15e..532eb68d950b 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", event->config);
}
struct intel_uncore_box *uncore_pmu_to_box(struct intel_uncore_pmu *pmu, int cpu)
--
Thorsten Blum <thorsten.blum@linux.dev>
GPG: 1D60 735E 8AEF 3BE4 73B6 9D84 7336 78FD 8DFE EAD4
reply other threads:[~2026-02-06 19:43 UTC|newest]
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