[PATCH 2/4] PM: tracing: Hide psci_domain_idle events under ARM_PSCI_CPUIDLE

From: Steven Rostedt
Date: Thu Jun 12 2025 - 10:54:36 EST


From: Steven Rostedt <rostedt@xxxxxxxxxxx>

The events psci_domain_idle_enter and psci_domain_idle_exit events are
only called when CONFIG_ARM_PSCI_CPUIDLE is defined. As each event can
take up to 5K (less for DEFINE_EVENT()) 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@xxxxxxxxxxx>
---
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 913181cebfe9..a10ad300d660 100644
--- a/include/trace/events/power.h
+++ b/include/trace/events/power.h
@@ -62,6 +62,7 @@ TRACE_EVENT(cpu_idle_miss,
(unsigned long)__entry->state, (__entry->below)?"below":"above")
);

+#ifdef CONFIG_ARM_PSCI_CPUIDLE
DECLARE_EVENT_CLASS(psci_domain_idle,

TP_PROTO(unsigned int cpu_id, unsigned int state, bool s2idle),
@@ -98,6 +99,7 @@ DEFINE_EVENT(psci_domain_idle, psci_domain_idle_exit,

TP_ARGS(cpu_id, state, s2idle)
);
+#endif

TRACE_EVENT(pstate_sample,

--
2.47.2