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perf: qcom: 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/20210528014749.24068-1-yuehaibing@huawei.com
Signed-off-by: Will Deacon <will@kernel.org>
This commit is contained in:
YueHaibing 2021-05-28 09:47:49 +08:00 committed by Will Deacon
parent 29c043760e
commit ccbe14ce88
1 changed files with 3 additions and 3 deletions
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6
drivers/perf/qcom_l3_pmu.c
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@ -670,15 +670,15 @@ static const struct attribute_group qcom_l3_cache_pmu_events_group = {
/* cpumask */
static ssize_t qcom_l3_cache_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 l3cache_pmu *l3pmu = to_l3cache_pmu(dev_get_drvdata(dev));
return cpumap_print_to_pagebuf(true, buf, &l3pmu->cpumask);
}
static DEVICE_ATTR(cpumask, 0444, qcom_l3_cache_pmu_cpumask_show, NULL);
static DEVICE_ATTR_RO(cpumask);
static struct attribute *qcom_l3_cache_pmu_cpumask_attrs[] = {
&dev_attr_cpumask.attr,