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perf: xgene_pmu: use DEVICE_ATTR_RO macro

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

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Link: https://lore.kernel.org/r/20210528014940.4184-1-yuehaibing@huawei.com
Signed-off-by: Will Deacon <will@kernel.org>
This commit is contained in:
YueHaibing 2021-05-28 09:49:40 +08:00 committed by Will Deacon
parent ccbe14ce88
commit 21ad02e6b4
1 changed files with 3 additions and 3 deletions
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6
drivers/perf/xgene_pmu.c
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@ -604,15 +604,15 @@ static const struct attribute_group mc_pmu_v3_events_attr_group = {
/*
* sysfs cpumask attributes
*/
static ssize_t xgene_pmu_cpumask_show(struct device *dev,
struct device_attribute *attr, char *buf)
static ssize_t cpumask_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct xgene_pmu_dev *pmu_dev = to_pmu_dev(dev_get_drvdata(dev));
return cpumap_print_to_pagebuf(true, buf, &pmu_dev->parent->cpu);
}
static DEVICE_ATTR(cpumask, S_IRUGO, xgene_pmu_cpumask_show, NULL);
static DEVICE_ATTR_RO(cpumask);
static struct attribute *xgene_pmu_cpumask_attrs[] = {
&dev_attr_cpumask.attr,