MT_FCE_INFO_LEN
min_len = MT_DMA_HDR_LEN + MT_RX_RXWI_LEN + MT_FCE_INFO_LEN;
sizeof(struct mt7601u_rxwi) + MT_FCE_INFO_LEN;
fce_info = get_unaligned_le32(data + seg_len - MT_FCE_INFO_LEN);
seg_len -= MT_FCE_INFO_LEN;