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);