ETT_HIST_ENABLE 6481 kernel/trace/trace_events_hist.c if (test->cmd_ops->trigger_type == ETT_HIST_ENABLE) { ETT_HIST_ENABLE 6493 kernel/trace/trace_events_hist.c .trigger_type = ETT_HIST_ENABLE, ETT_HIST_ENABLE 6504 kernel/trace/trace_events_hist.c .trigger_type = ETT_HIST_ENABLE,