find_event_var   2815 kernel/trace/trace_events_hist.c 	var_field = find_event_var(hist_data, system, event_name, var_name);
find_event_var   3282 kernel/trace/trace_events_hist.c 	event_var = find_event_var(target_hist_data, system, event_name, synthetic_name);
find_event_var   4213 kernel/trace/trace_events_hist.c 		hist_field = find_event_var(hist_data, system, event, var);