[PATCH -next] perf: arm_pmu: use DEVICE_ATTR_RO macro
From: YueHaibing <hidden>
Date: 2021-05-28 01:41:41
Also in:
lkml
Subsystem:
arm pmu profiling and debugging, the rest · Maintainers:
Will Deacon, Mark Rutland, Linus Torvalds
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 <redacted> --- drivers/perf/arm_pmu.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/perf/arm_pmu.c b/drivers/perf/arm_pmu.c
index e57b348c1628..a64e254a731b 100644
--- a/drivers/perf/arm_pmu.c
+++ b/drivers/perf/arm_pmu.c@@ -563,14 +563,14 @@ static int armpmu_filter_match(struct perf_event *event) return ret; } -static ssize_t armpmu_cpumask_show(struct device *dev, - struct device_attribute *attr, char *buf) +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,
--
2.17.1
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