On 10/22/2026 9:33 PM, Steven Rostedt wrote:
From: Steven Rostedt <[email protected]>
Tracepoints that are defined take up around 5K each, even if they are not
used. When a tracepoint is used only in code when a specific config is
enabled, their definition must also be only defined when the same config
is enabled otherwise it wastes memory.
The tracepoint guest_halt_poll_ns is only used when CONFIG_CPU_IDLE_GOV_HALTPOLL
is enabled. Guard the definition of that tracepoint with the same config.
Fixes: 0da11bf0cab90 ("cpuidle: haltpoll: Add trace points for guest_halt_poll_ns
grow/shrink")
Signed-off-by: Steven Rostedt <[email protected]>
Acked-by: Rafael J. Wysocki <[email protected]>
Thanks!
---
include/trace/events/power.h | 3 +++
1 file changed, 3 insertions(+)
diff --git a/include/trace/events/power.h b/include/trace/events/power.h
index 370f8df2fdb4..4d17eb307b6a 100644
--- a/include/trace/events/power.h
+++ b/include/trace/events/power.h
@@ -497,6 +497,7 @@ DEFINE_EVENT(dev_pm_qos_request, dev_pm_qos_remove_request,
TP_ARGS(name, type, new_value)
);
+#ifdef CONFIG_CPU_IDLE_GOV_HALTPOLL
TRACE_EVENT(guest_halt_poll_ns,
TP_PROTO(bool grow, unsigned int new, unsigned int old),
@@ -525,6 +526,8 @@ TRACE_EVENT(guest_halt_poll_ns,
trace_guest_halt_poll_ns(true, new, old)
#define trace_guest_halt_poll_ns_shrink(new, old) \
trace_guest_halt_poll_ns(false, new, old)
+#endif /* CONFIG_CPU_IDLE_GOV_HALTPOLL */
+
#endif /* _TRACE_POWER_H */
/* This part must be outside protection */
