trace: Use tracing_reset_online_cpus in more places

Impact: cleanup

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Acked-by: Frédéric Weisbecker <fweisbec@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
diff --git a/kernel/trace/trace_nop.c b/kernel/trace/trace_nop.c
index b9767ac..087b6cb 100644
--- a/kernel/trace/trace_nop.c
+++ b/kernel/trace/trace_nop.c
@@ -47,12 +47,8 @@
 
 static int nop_trace_init(struct trace_array *tr)
 {
-	int cpu;
 	ctx_trace = tr;
-
-	for_each_online_cpu(cpu)
-		tracing_reset(tr, cpu);
-
+	tracing_reset_online_cpus(tr);
 	start_nop_trace(tr);
 	return 0;
 }