[PATCH 3/3] perf/x86/amd:Convert snprintf() to sysfs_emit()

From: Jules Irenge
Date: Fri Nov 03 2023 - 20:02:46 EST


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@xxxxxxxxx>
---
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