[for-next][PATCH 6/7] tracing, thermal: Hide devfreq trace events when not in use

Steven Rostedt
2017-10-18T13:29:27Z

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From: "Steven Rostedt (VMware)" <rostedt@goodmis.org>

As trace events when defined create data structures and functions to
process them, defining trace events when not using them is a waste of
memory.

The trace events thermal_power_devfreq_get_power and
thermal_power_devfreq_limit are only used when CONFIG_DEVFREQ_THERMAL
is set. Make those events only defined when that is set as well.

Link: http://lkml.kernel.org/r/20171013102150.0050cb74@gandalf.local.home

Acked-by: Javi Merino <javi.merino@kernel.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
---
include/trace/events/thermal.h | 2 ++
1 file changed, 2 insertions(+)

diff --git a/include/trace/events/thermal.h b/include/trace/events/thermal.h
index 6cde5b3514c2..1fdacdb94e77 100644
--- a/include/trace/events/thermal.h
+++ b/include/trace/events/thermal.h
@@ -148,6 +148,7 @@ TRACE_EVENT(thermal_power_cpu_limit,
__entry->power)
);

+#ifdef CONFIG_DEVFREQ_THERMAL
TRACE_EVENT(thermal_power_devfreq_get_power,
TP_PROTO(struct thermal_cooling_device *cdev,
struct devfreq_dev_status *status, unsigned long freq,
@@ -203,6 +204,7 @@ TRACE_EVENT(thermal_power_devfreq_limit,
__get_str(type), __entry->freq, __entry->cdev_state,
__entry->power)
);
+#endif /* CONFIG_DEVFREQ_THERMAL */
#endif /* _TRACE_THERMAL_H */

/* This part must be outside protection */
--
2.13.2