Commit b6ecb57f authored by XieLudan's avatar XieLudan Committed by Ingo Molnar
Browse files

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: default avatarXieLudan <xie.ludan@zte.com.cn>
Signed-off-by: default avatarIngo Molnar <mingo@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20250315141738452lXIH39UJAXlCmcATCzcBv@zte.com.cn
parent fd3f5d38

kernel/events/core.c

+3 −3
Original line number Diff line number Diff line
@@ -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);