first_param 3958 kernel/trace/trace_events_hist.c bool first_param = true; first_param 3987 kernel/trace/trace_events_hist.c if (first_param && data->use_trace_keyword) { first_param 3989 kernel/trace/trace_events_hist.c first_param = false; first_param 3992 kernel/trace/trace_events_hist.c first_param = false;