linux-kernel - [PATCH 14/16] perf: add PMU_EVENT_ATTR

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Date:	Tue, 27 May 2014 17:22:09 -0700
From:	Cody P Schafer <dev@...yps.com>
To:	LKML <linux-kernel@...r.kernel.org>,
	Linux PPC <linuxppc-dev@...ts.ozlabs.org>,
	Arnaldo Carvalho de Melo <acme@...nel.org>,
	Ingo Molnar <mingo@...hat.com>,
	Paul Mackerras <paulus@...ba.org>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>
Cc:	Sukadev Bhattiprolu <sukadev@...ux.vnet.ibm.com>,
	Cody P Schafer <dev@...yps.com>
Subject: [PATCH 14/16] perf: add PMU_EVENT_ATTR_STRING() helper

Helper for constructing static struct perf_pmu_events_attr s.

CC: Sukadev Bhattiprolu <sukadev@...ux.vnet.ibm.com>
Signed-off-by: Cody P Schafer <dev@...yps.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 6c1d6dd..1313171 100644
--- a/include/linux/perf_event.h
+++ b/include/linux/perf_event.h
@@ -876,6 +876,13 @@ 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,					\
-- 
1.9.3

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