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tracing, thermal: Hide devfreq trace events when not in use 

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>
This commit is contained in:
Steven Rostedt (VMware) 2017-10-13 10:21:50 -04:00
parent b3a88803ac
commit b5ca66f9c0
1 changed files with 2 additions and 0 deletions
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2
include/trace/events/thermal.h
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@ -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 */