From: Jules Irenge <jbi.octave@gmail.com>
To: irogers@google.com
Cc: adrian.hunter@intel.com, tglx@linutronix.de, bp@alien8.de,
dave.hansen@linux.intel.com, x86@kernel.org, hpa@zytor.com,
linux-perf-users@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH 3/3] perf/x86/amd:Convert snprintf() to sysfs_emit()
Date: Fri, 3 Nov 2023 23:57:52 +0000 [thread overview]
Message-ID: <ZUWJAFlP2pM6ko0-@octinomon> (raw)
Coccinelle reports a warning
WARNING: use scnprintf or sprintf
Following the advice on kernel documentation
https://www.kernel.org/doc/html/latest/filesystems/sysfs.html
For show(device *...) functions, only use sysfs_emit() or sysfs_emit_at()
especially when formatting the value to be returned to user space.
Convert snprintf() to sysfs_emit()
Signed-off-by: Jules Irenge <jbi.octave@gmail.com>
---
arch/x86/events/amd/core.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/x86/events/amd/core.c b/arch/x86/events/amd/core.c
index e24976593a29..f2fef75d464c 100644
--- a/arch/x86/events/amd/core.c
+++ b/arch/x86/events/amd/core.c
@@ -1279,7 +1279,7 @@ static ssize_t branches_show(struct device *cdev,
struct device_attribute *attr,
char *buf)
{
- return snprintf(buf, PAGE_SIZE, "%d\n", x86_pmu.lbr_nr);
+ return sysfs_emit(buf, "%d\n", x86_pmu.lbr_nr);
}
static DEVICE_ATTR_RO(branches);
--
2.41.0
reply other threads:[~2023-11-03 23:58 UTC|newest]
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