[PATCH v2 12/14] perf: add PMU_EVENT_ATTR_STRING() helper

[Sukadev Bhattiprolu]

From: Cody P Schafer <dev at codyps.com>

Helper for constructing static struct perf_pmu_events_attr s.

CC: Haren Myneni <hbabu at us.ibm.com>
CC: Cody P Schafer <dev at codyps.com>
Signed-off-by: Cody P Schafer <cody at linux.vnet.ibm.com>
Signed-off-by: Sukadev Bhattiprolu <sukadev at linux.vnet.ibm.com>
---
 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 cef4a56..32190c5 100644
--- a/include/linux/perf_event.h
+++ b/include/linux/perf_event.h
@@ -891,6 +891,13 @@ 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