[PATCH 3/4] PM: tracing: Hide device_pm_callback events under PM_SLEEP
Steven Rostedt
rostedt at goodmis.org
Fri Jun 13 00:53:13 AEST 2025
From: Steven Rostedt <rostedt at goodmis.org>
The events device_pm_callback_start and device_pm_callback_end events are
only called when CONFIG_PM_SLEEP is defined. As each event can take up to
5K regardless if they are used or not, it's best not to define them when
they are not used. Add #ifdef around these events when they are not used.
Signed-off-by: Steven Rostedt (Google) <rostedt at goodmis.org>
---
include/trace/events/power.h | 2 ++
1 file changed, 2 insertions(+)
diff --git a/include/trace/events/power.h b/include/trace/events/power.h
index a10ad300d660..5b1df5e1e092 100644
--- a/include/trace/events/power.h
+++ b/include/trace/events/power.h
@@ -212,6 +212,7 @@ TRACE_EVENT(cpu_frequency_limits,
(unsigned long)__entry->cpu_id)
);
+#ifdef CONFIG_PM_SLEEP
TRACE_EVENT(device_pm_callback_start,
TP_PROTO(struct device *dev, const char *pm_ops, int event),
@@ -260,6 +261,7 @@ TRACE_EVENT(device_pm_callback_end,
TP_printk("%s %s, err=%d",
__get_str(driver), __get_str(device), __entry->error)
);
+#endif
TRACE_EVENT(suspend_resume,
--
2.47.2
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