linux-kernel - [PATCH 5/9] tracing: Convert some power events to DEFINE

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Date:	Thu, 26 Nov 2009 15:05:38 +0800
From:	Li Zefan <lizf@...fujitsu.com>
To:	Arjan van de Ven <arjan@...radead.org>, Ingo Molnar <mingo@...e.hu>
CC:	Steven Rostedt <rostedt@...dmis.org>,
	Frederic Weisbecker <fweisbec@...il.com>,
	LKML <linux-kernel@...r.kernel.org>
Subject: [PATCH 5/9] tracing: Convert some power events to DEFINE_EVENT

Use TRACE_EVENT_TEMPLATE to remove duplicate code:

   text    data     bss     dec     hex filename
   4312     524      12    4848    12f0 kernel/trace/power-traces.o.old
   3455     524       8    3987     f93 kernel/trace/power-traces.o

Two events are converted:

  power: power_start, power_frequency

Signed-off-by: Li Zefan <lizf@...fujitsu.com>
---
 include/trace/events/power.h |   36 +++++++++++++++---------------------
 1 files changed, 15 insertions(+), 21 deletions(-)

diff --git a/include/trace/events/power.h b/include/trace/events/power.h
index 9bb96e5..5cfa61a 100644
--- a/include/trace/events/power.h
+++ b/include/trace/events/power.h
@@ -16,7 +16,7 @@ enum {
 };
 #endif
 
-TRACE_EVENT(power_start,
+TRACE_EVENT_TEMPLATE(power,
 
 	TP_PROTO(unsigned int type, unsigned int state),
 
@@ -35,42 +35,36 @@ TRACE_EVENT(power_start,
 	TP_printk("type=%lu state=%lu", (unsigned long)__entry->type, (unsigned long)__entry->state)
 );
 
-TRACE_EVENT(power_end,
-
-	TP_PROTO(int dummy),
+DEFINE_EVENT(power, power_start,
 
-	TP_ARGS(dummy),
+	TP_PROTO(unsigned int type, unsigned int state),
 
-	TP_STRUCT__entry(
-		__field(	u64,		dummy		)
-	),
+	TP_ARGS(type, state)
+);
 
-	TP_fast_assign(
-		__entry->dummy = 0xffff;
-	),
+DEFINE_EVENT(power, power_frequency,
 
-	TP_printk("dummy=%lu", (unsigned long)__entry->dummy)
+	TP_PROTO(unsigned int type, unsigned int state),
 
+	TP_ARGS(type, state)
 );
 
+TRACE_EVENT(power_end,
 
-TRACE_EVENT(power_frequency,
-
-	TP_PROTO(unsigned int type, unsigned int state),
+	TP_PROTO(int dummy),
 
-	TP_ARGS(type, state),
+	TP_ARGS(dummy),
 
 	TP_STRUCT__entry(
-		__field(	u64,		type		)
-		__field(	u64,		state		)
+		__field(	u64,		dummy		)
 	),
 
 	TP_fast_assign(
-		__entry->type = type;
-		__entry->state = state;
+		__entry->dummy = 0xffff;
 	),
 
-	TP_printk("type=%lu state=%lu", (unsigned long)__entry->type, (unsigned long) __entry->state)
+	TP_printk("dummy=%lu", (unsigned long)__entry->dummy)
+
 );
 
 #endif /* _TRACE_POWER_H */
-- 
1.6.3


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