struct rtw89_btc_fbtc_cysta_cpu pcysta[1];
        struct rtw89_btc_prpt *btc_prpt = NULL;
        struct rtw89_btc_fbtc_slot *rtp_slot = NULL;
-       u8 rpt_type = 0, *rpt_content = NULL, *pfinfo = NULL;
+       void *rpt_content = NULL, *pfinfo = NULL;
+       u8 rpt_type = 0;
        u16 wl_slot_set = 0, wl_slot_real = 0;
        u32 trace_step = btc->ctrl.trace_step, rpt_len = 0, diff_t;
        u32 cnt_leak_slot = 0, bt_slot_real = 0, cnt_rx_imr = 0;
        case BTC_RPT_TYPE_CTRL:
                pcinfo = &pfwinfo->rpt_ctrl.cinfo;
                if (chip->chip_id == RTL8852A) {
-                       pfinfo = (u8 *)(&pfwinfo->rpt_ctrl.finfo);
+                       pfinfo = &pfwinfo->rpt_ctrl.finfo;
                        pcinfo->req_len = sizeof(pfwinfo->rpt_ctrl.finfo);
                } else {
-                       pfinfo = (u8 *)(&pfwinfo->rpt_ctrl.finfo_v1);
+                       pfinfo = &pfwinfo->rpt_ctrl.finfo_v1;
                        pcinfo->req_len = sizeof(pfwinfo->rpt_ctrl.finfo_v1);
                }
                pcinfo->req_fver = chip->fcxbtcrpt_ver;
        case BTC_RPT_TYPE_TDMA:
                pcinfo = &pfwinfo->rpt_fbtc_tdma.cinfo;
                if (chip->chip_id == RTL8852A) {
-                       pfinfo = (u8 *)&pfwinfo->rpt_fbtc_tdma.finfo;
+                       pfinfo = &pfwinfo->rpt_fbtc_tdma.finfo;
                        pcinfo->req_len = sizeof(pfwinfo->rpt_fbtc_tdma.finfo);
                } else {
-                       pfinfo = (u8 *)&pfwinfo->rpt_fbtc_tdma.finfo_v1;
+                       pfinfo = &pfwinfo->rpt_fbtc_tdma.finfo_v1;
                        pcinfo->req_len = sizeof(pfwinfo->rpt_fbtc_tdma.finfo_v1);
                }
                pcinfo->req_fver = chip->fcxtdma_ver;
                break;
        case BTC_RPT_TYPE_SLOT:
                pcinfo = &pfwinfo->rpt_fbtc_slots.cinfo;
-               pfinfo = (u8 *)(&pfwinfo->rpt_fbtc_slots.finfo);
+               pfinfo = &pfwinfo->rpt_fbtc_slots.finfo;
                pcinfo->req_len = sizeof(pfwinfo->rpt_fbtc_slots.finfo);
                pcinfo->req_fver = chip->fcxslots_ver;
                pcinfo->rx_len = rpt_len;
        case BTC_RPT_TYPE_CYSTA:
                pcinfo = &pfwinfo->rpt_fbtc_cysta.cinfo;
                if (chip->chip_id == RTL8852A) {
-                       pfinfo = (u8 *)(&pfwinfo->rpt_fbtc_cysta.finfo);
+                       pfinfo = &pfwinfo->rpt_fbtc_cysta.finfo;
                        pcysta_le32 = &pfwinfo->rpt_fbtc_cysta.finfo;
                        rtw89_btc_fbtc_cysta_to_cpu(pcysta_le32, pcysta);
                        pcinfo->req_len = sizeof(pfwinfo->rpt_fbtc_cysta.finfo);
                } else {
-                       pfinfo = (u8 *)(&pfwinfo->rpt_fbtc_cysta.finfo_v1);
+                       pfinfo = &pfwinfo->rpt_fbtc_cysta.finfo_v1;
                        pcysta_v1 = &pfwinfo->rpt_fbtc_cysta.finfo_v1;
                        pcinfo->req_len = sizeof(pfwinfo->rpt_fbtc_cysta.finfo_v1);
                }
                break;
        case BTC_RPT_TYPE_STEP:
                pcinfo = &pfwinfo->rpt_fbtc_step.cinfo;
-               pfinfo = (u8 *)(&pfwinfo->rpt_fbtc_step.finfo);
+               pfinfo = &pfwinfo->rpt_fbtc_step.finfo;
                pcinfo->req_len = sizeof(pfwinfo->rpt_fbtc_step.finfo.step[0]) *
                                  trace_step + 8;
                pcinfo->req_fver = chip->fcxstep_ver;
                break;
        case BTC_RPT_TYPE_NULLSTA:
                pcinfo = &pfwinfo->rpt_fbtc_nullsta.cinfo;
-               pfinfo = (u8 *)(&pfwinfo->rpt_fbtc_nullsta.finfo);
+               pfinfo = &pfwinfo->rpt_fbtc_nullsta.finfo;
                pcinfo->req_len = sizeof(pfwinfo->rpt_fbtc_nullsta.finfo);
                pcinfo->req_fver = chip->fcxnullsta_ver;
                pcinfo->rx_len = rpt_len;
                break;
        case BTC_RPT_TYPE_MREG:
                pcinfo = &pfwinfo->rpt_fbtc_mregval.cinfo;
-               pfinfo = (u8 *)(&pfwinfo->rpt_fbtc_mregval.finfo);
+               pfinfo = &pfwinfo->rpt_fbtc_mregval.finfo;
                pcinfo->req_len = sizeof(pfwinfo->rpt_fbtc_mregval.finfo);
                pcinfo->req_fver = chip->fcxmreg_ver;
                pcinfo->rx_len = rpt_len;
                break;
        case BTC_RPT_TYPE_GPIO_DBG:
                pcinfo = &pfwinfo->rpt_fbtc_gpio_dbg.cinfo;
-               pfinfo = (u8 *)(&pfwinfo->rpt_fbtc_gpio_dbg.finfo);
+               pfinfo = &pfwinfo->rpt_fbtc_gpio_dbg.finfo;
                pcinfo->req_len = sizeof(pfwinfo->rpt_fbtc_gpio_dbg.finfo);
                pcinfo->req_fver = chip->fcxgpiodbg_ver;
                pcinfo->rx_len = rpt_len;
                break;
        case BTC_RPT_TYPE_BT_VER:
                pcinfo = &pfwinfo->rpt_fbtc_btver.cinfo;
-               pfinfo = (u8 *)(&pfwinfo->rpt_fbtc_btver.finfo);
+               pfinfo = &pfwinfo->rpt_fbtc_btver.finfo;
                pcinfo->req_len = sizeof(pfwinfo->rpt_fbtc_btver.finfo);
                pcinfo->req_fver = chip->fcxbtver_ver;
                pcinfo->rx_len = rpt_len;
                break;
        case BTC_RPT_TYPE_BT_SCAN:
                pcinfo = &pfwinfo->rpt_fbtc_btscan.cinfo;
-               pfinfo = (u8 *)(&pfwinfo->rpt_fbtc_btscan.finfo);
+               pfinfo = &pfwinfo->rpt_fbtc_btscan.finfo;
                pcinfo->req_len = sizeof(pfwinfo->rpt_fbtc_btscan.finfo);
                pcinfo->req_fver = chip->fcxbtscan_ver;
                pcinfo->rx_len = rpt_len;
                break;
        case BTC_RPT_TYPE_BT_AFH:
                pcinfo = &pfwinfo->rpt_fbtc_btafh.cinfo;
-               pfinfo = (u8 *)(&pfwinfo->rpt_fbtc_btafh.finfo);
+               pfinfo = &pfwinfo->rpt_fbtc_btafh.finfo;
                pcinfo->req_len = sizeof(pfwinfo->rpt_fbtc_btafh.finfo);
                pcinfo->req_fver = chip->fcxbtafh_ver;
                pcinfo->rx_len = rpt_len;
                break;
        case BTC_RPT_TYPE_BT_DEVICE:
                pcinfo = &pfwinfo->rpt_fbtc_btdev.cinfo;
-               pfinfo = (u8 *)(&pfwinfo->rpt_fbtc_btdev.finfo);
+               pfinfo = &pfwinfo->rpt_fbtc_btdev.finfo;
                pcinfo->req_len = sizeof(pfwinfo->rpt_fbtc_btdev.finfo);
                pcinfo->req_fver = chip->fcxbtdevinfo_ver;
                pcinfo->rx_len = rpt_len;