trace_add_event_call 545 include/linux/trace_events.h extern int trace_add_event_call(struct trace_event_call *call); trace_add_event_call 1220 kernel/trace/trace_events_hist.c ret = trace_add_event_call(call); trace_add_event_call 1041 kernel/trace/trace_probe.c ret = trace_add_event_call(call);