Commit 29c04376 authored by YueHaibing's avatar YueHaibing Committed by Will Deacon
Browse files

perf: arm_pmu: use DEVICE_ATTR_RO macro 



Use DEVICE_ATTR_RO helper instead of plain DEVICE_ATTR,
which makes the code a bit shorter and easier to read.

Signed-off-by: default avatarYueHaibing <yuehaibing@huawei.com>
Link: https://lore.kernel.org/r/20210528014130.7708-1-yuehaibing@huawei.com


Signed-off-by: default avatarWill Deacon <will@kernel.org>
parent 2db52237

drivers/perf/arm_pmu.c

+3 −3
Original line number Diff line number Diff line
@@ -563,14 +563,14 @@ static int armpmu_filter_match(struct perf_event *event) 
	return ret;

}



static ssize_t armpmu_cpumask_show(struct device *dev,

static ssize_t cpus_show(struct device *dev,

			 struct device_attribute *attr, char *buf)

{

	struct arm_pmu *armpmu = to_arm_pmu(dev_get_drvdata(dev));

	return cpumap_print_to_pagebuf(true, buf, &armpmu->supported_cpus);

}



static DEVICE_ATTR(cpus, S_IRUGO, armpmu_cpumask_show, NULL);

static DEVICE_ATTR_RO(cpus);



static struct attribute *armpmu_common_attrs[] = {

	&dev_attr_cpus.attr,