__unregister_trace_event 2066 kernel/trace/trace_events.c __unregister_trace_event(&call->event); __unregister_trace_event 799 kernel/trace/trace_output.c __unregister_trace_event(event); __unregister_trace_event 32 kernel/trace/trace_output.h extern int __unregister_trace_event(struct trace_event *event);