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[13/18] acpi: Provide config option to enable power tracepoints

Message ID 1269304340-25372-14-git-send-email-jack@suse.cz (mailing list archive)
State New, archived
Headers show

Commit Message

Jan Kara March 23, 2010, 12:32 a.m. UTC 
None
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Patch

diff --git a/include/trace/events/power.h b/include/trace/events/power.h
index c4efe9b..6d84fc1 100644
--- a/include/trace/events/power.h
+++ b/include/trace/events/power.h
@@ -1,5 +1,7 @@ 
 #undef TRACE_SYSTEM
+#undef TRACE_CONFIG
 #define TRACE_SYSTEM power
+#define TRACE_CONFIG CONFIG_POWER_TRACER
 
 #if !defined(_TRACE_POWER_H) || defined(TRACE_HEADER_MULTI_READ)
 #define _TRACE_POWER_H
diff --git a/kernel/trace/Kconfig b/kernel/trace/Kconfig
index 787f52e..a48ff49 100644
--- a/kernel/trace/Kconfig
+++ b/kernel/trace/Kconfig
@@ -430,6 +430,15 @@  config TIMER_TRACER
 
 	  If unsure, say N
 
+config POWER_TRACER
+	bool "Trace power events"
+	select GENERIC_TRACER
+	help
+	  Provide trace points for events like changing CPU frequency,
+	  turning CPUs on / off.
+
+	  If unsure, say N
+
 config WORKQUEUE_TRACER
 	bool "Trace workqueues"
 	select GENERIC_TRACER