[PATCH v5 2/6] perf: add PMU_EVENT_ATTR_STRING() helper

[Sukadev Bhattiprolu]

From: Cody P Schafer <cody@xxxxxxxxxxxxxxxxxx>

Helper for constructing static struct perf_pmu_events_attr s.

CC: Sukadev Bhattiprolu <sukadev@xxxxxxxxxxxxxxxxxx>
CC: Haren Myneni <hbabu@xxxxxxxxxx>
CC: Cody P Schafer <dev@xxxxxxxxxx>
Signed-off-by: Cody P Schafer <cody@xxxxxxxxxxxxxxxxxx>
---
 include/linux/perf_event.h | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h
index 58f59bd..4038299 100644
--- a/include/linux/perf_event.h
+++ b/include/linux/perf_event.h
@@ -906,6 +906,13 @@ static struct perf_pmu_events_attr _var = {				\
 	.id   =  _id,							\
 };
 
+#define PMU_EVENT_ATTR_STRING(_name, _var, _value)			\
+static struct perf_pmu_events_attr _var = {				\
+	.attr = __ATTR(_name, 0444, perf_event_sysfs_show, NULL),	\
+	.event_str = _value,						\
+};
+
+
 #define PMU_FORMAT_ATTR(_name, _format)					\
 static ssize_t								\
 _name##_show(struct device *dev,					\
-- 
1.8.3.1

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