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From:   YueHaibing <yuehaibing@huawei.com>
To:     <will@kernel.org>, <mark.rutland@arm.com>,
        <julien.thierry.kdev@gmail.com>
CC:     <linux-arm-kernel@lists.infradead.org>,
        <linux-kernel@vger.kernel.org>, YueHaibing <yuehaibing@huawei.com>
Subject: [PATCH -next] perf: arm_pmu: use DEVICE_ATTR_RO macro
Date:   Fri, 28 May 2021 09:41:30 +0800
Message-ID: <20210528014130.7708-1-yuehaibing@huawei.com>
MIME-Version: 1.0
Content-Type: text/plain
Precedence: bulk

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>
---
 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