ATH10K_HIF_MBOX_NUM_MAX
addr = MBOX_COUNT_DEC_ADDRESS + ATH10K_HIF_MBOX_NUM_MAX * 4;
__le32 rx_lookahead[2 * ATH10K_HIF_MBOX_NUM_MAX];
(ATH10K_HIF_MBOX_NUM_MAX * ATH10K_HIF_MBOX_WIDTH)