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From:   YueHaibing <yuehaibing@huawei.com>
To:     <will@kernel.org>, <mark.rutland@arm.com>
CC:     <linux-arm-kernel@lists.infradead.org>,
        <linux-kernel@vger.kernel.org>, YueHaibing <yuehaibing@huawei.com>
Subject: [PATCH v2 -next] perf: arm_spe: use DEVICE_ATTR_RO macro
Date:   Fri, 28 May 2021 14:17:38 +0800
Message-ID: <20210528061738.23392-1-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>
---
v2: Fix build error

 drivers/perf/arm_spe_pmu.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/drivers/perf/arm_spe_pmu.c b/drivers/perf/arm_spe_pmu.c
index e3711cb4c1b5..773285dd539f 100644
--- a/drivers/perf/arm_spe_pmu.c
+++ b/drivers/perf/arm_spe_pmu.c
@@ -231,15 +231,14 @@ static const struct attribute_group arm_spe_pmu_format_group = {
 	.attrs	= arm_spe_pmu_formats_attr,
 };
 
-static ssize_t arm_spe_pmu_get_attr_cpumask(struct device *dev,
-					    struct device_attribute *attr,
-					    char *buf)
+static ssize_t cpumask_show(struct device *dev,
+			    struct device_attribute *attr, char *buf)
 {
 	struct arm_spe_pmu *spe_pmu = dev_get_drvdata(dev);
 
 	return cpumap_print_to_pagebuf(true, buf, &spe_pmu->supported_cpus);
 }
-static DEVICE_ATTR(cpumask, S_IRUGO, arm_spe_pmu_get_attr_cpumask, NULL);
+static DEVICE_ATTR_RO(cpumask);
 
 static struct attribute *arm_spe_pmu_attrs[] = {
 	&dev_attr_cpumask.attr,
-- 
2.17.1