From b6ecb57f1fec114cfa19b1bf06f25f904ca928f9 Mon Sep 17 00:00:00 2001 From: XieLudan Date: Sat, 15 Mar 2025 14:17:38 +0800 Subject: [PATCH] perf/core: Use sysfs_emit() instead of scnprintf() Follow the advice in Documentation/filesystems/sysfs.rst: "- show() should only use sysfs_emit() or sysfs_emit_at() when formatting the value to be returned to user space." No change in functionality intended. [ mingo: Updated the changelog ] Signed-off-by: XieLudan Signed-off-by: Ingo Molnar Cc: Peter Zijlstra Link: https://lore.kernel.org/r/20250315141738452lXIH39UJAXlCmcATCzcBv@zte.com.cn --- kernel/events/core.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/kernel/events/core.c b/kernel/events/core.c index e7d0b055f96c..2533fc32d890 100644 --- a/kernel/events/core.c +++ b/kernel/events/core.c @@ -11713,7 +11713,7 @@ static ssize_t nr_addr_filters_show(struct device *dev, { struct pmu *pmu = dev_get_drvdata(dev); - return scnprintf(page, PAGE_SIZE - 1, "%d\n", pmu->nr_addr_filters); + return sysfs_emit(page, "%d\n", pmu->nr_addr_filters); } DEVICE_ATTR_RO(nr_addr_filters); @@ -11724,7 +11724,7 @@ type_show(struct device *dev, struct device_attribute *attr, char *page) { struct pmu *pmu = dev_get_drvdata(dev); - return scnprintf(page, PAGE_SIZE - 1, "%d\n", pmu->type); + return sysfs_emit(page, "%d\n", pmu->type); } static DEVICE_ATTR_RO(type); @@ -11735,7 +11735,7 @@ perf_event_mux_interval_ms_show(struct device *dev, { struct pmu *pmu = dev_get_drvdata(dev); - return scnprintf(page, PAGE_SIZE - 1, "%d\n", pmu->hrtimer_interval_ms); + return sysfs_emit(page, "%d\n", pmu->hrtimer_interval_ms); } static DEFINE_MUTEX(mux_interval_mutex);