RBIF_TIMER_ADJ_CONS_DOWN_MASK
desc->timer_cons_down > RBIF_TIMER_ADJ_CONS_DOWN_MASK ||
mask = RBIF_TIMER_ADJ_CONS_UP_MASK | RBIF_TIMER_ADJ_CONS_DOWN_MASK;
RBIF_TIMER_ADJ_CONS_DOWN_MASK, 0);