linux-kernel - [PATCH v3 3/9] drivers/perf: Simplify EVENT ATTR macro in SMMU PMU driver

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Date:   Tue, 8 Jun 2021 11:33:15 +0800
From:   Qi Liu <liuqi115@...wei.com>
To:     <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>
CC:     <linuxarm@...wei.com>, Will Deacon <will@...nel.org>,
        Mark Rutland <mark.rutland@....com>
Subject: [PATCH v3 3/9] drivers/perf: Simplify EVENT ATTR macro in SMMU PMU driver

Use common macro PMU_EVENT_ATTR_ID to simplify SMMU_EVENT_ATTR.

Cc: Will Deacon <will@...nel.org>
Cc: Mark Rutland <mark.rutland@....com>
Signed-off-by: Qi Liu <liuqi115@...wei.com>
---
 drivers/perf/arm_smmuv3_pmu.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/drivers/perf/arm_smmuv3_pmu.c b/drivers/perf/arm_smmuv3_pmu.c
index ff6fab4..da2ce30 100644
--- a/drivers/perf/arm_smmuv3_pmu.c
+++ b/drivers/perf/arm_smmuv3_pmu.c
@@ -509,11 +509,8 @@ static ssize_t smmu_pmu_event_show(struct device *dev,
 	return sysfs_emit(page, "event=0x%02llx\n", pmu_attr->id);
 }
 
-#define SMMU_EVENT_ATTR(name, config)					\
-	(&((struct perf_pmu_events_attr) {				\
-		.attr = __ATTR(name, 0444, smmu_pmu_event_show, NULL),	\
-		.id = config,						\
-	}).attr.attr)
+#define SMMU_EVENT_ATTR(name, config)			\
+	PMU_EVENT_ATTR_ID(name, smmu_pmu_event_show, config)
 
 static struct attribute *smmu_pmu_events[] = {
 	SMMU_EVENT_ATTR(cycles, 0),
-- 
2.7.4