diff --git a/include/trace/hooks/cpu.h b/include/trace/hooks/cpu.h
index fc3eaf318b25..33ab6ef1f28c 100644
--- a/include/trace/hooks/cpu.h
+++ b/include/trace/hooks/cpu.h
@@ -15,8 +15,8 @@ DECLARE_HOOK(android_vh_cpu_up,
 	TP_ARGS(cpu));
 
 DECLARE_HOOK(android_vh_cpu_down,
-	TP_PROTO(unsigned int cpu),
-	TP_ARGS(cpu));
+	TP_PROTO(void *unused),
+	TP_ARGS(unused));
 
 /* macro versions of hooks are no longer required */
 
diff --git a/kernel/cpu.c b/kernel/cpu.c
index 739597d16bf6..e3b41a8ad8e2 100644
--- a/kernel/cpu.c
+++ b/kernel/cpu.c
@@ -1127,7 +1127,7 @@ static int cpu_down(unsigned int cpu, enum cpuhp_state target)
 {
 	int err;
 
-	trace_android_vh_cpu_down(cpu);
+	trace_android_vh_cpu_down(NULL);
 
 	cpu_maps_update_begin();
 	err = cpu_down_maps_locked(cpu, target);