NVME_AEN_BIT_ANA_CHANGE
nvmet_clear_aen_bit(req, NVME_AEN_BIT_ANA_CHANGE);
if (nvmet_aen_bit_disabled(ctrl, NVME_AEN_BIT_ANA_CHANGE))
NVME_AEN_CFG_ANA_CHANGE = 1 << NVME_AEN_BIT_ANA_CHANGE,