if (pmlmeext->bstart_bss) {
                update_beacon(padapter, WLAN_EID_TIM, NULL, true);
 
-#ifndef CONFIG_INTERRUPT_BASED_TXBCN /* other case will  tx beacon when bcn interrupt coming in. */
-               /* issue beacon frame */
-               if (send_beacon(padapter) == _FAIL)
-                       DBG_871X("issue_beacon, fail!\n");
+       /* issue beacon frame */
+       if (send_beacon(padapter) == _FAIL)
+               DBG_871X("issue_beacon, fail!\n");
 
-#endif /* CONFIG_INTERRUPT_BASED_TXBCN */
        }
 
        /* update bc/mc sta_info */
        }
 
        kfree(pbackup_remainder_ie);
-
-       /*  deal with the case without set_tx_beacon_cmd() in update_beacon() */
-#if defined(CONFIG_INTERRUPT_BASED_TXBCN)
-       if ((pmlmeinfo->state & 0x03) == WIFI_FW_AP_STATE) {
-               u8 sr = 0;
-
-               rtw_get_wps_attr_content(
-                       pwps_ie_src,
-                       wps_ielen,
-                       WPS_ATTR_SELECTED_REGISTRAR,
-                       (u8 *)(&sr),
-                       NULL
-               );
-
-               if (sr) {
-                       set_fwstate(pmlmepriv, WIFI_UNDER_WPS);
-                       DBG_871X("%s, set WIFI_UNDER_WPS\n", __func__);
-               }
-       }
-#endif
 }
 
 static void update_bcn_p2p_ie(struct adapter *padapter)
 
        spin_unlock_bh(&pmlmepriv->bcn_update_lock);
 
-#ifndef CONFIG_INTERRUPT_BASED_TXBCN
        if (tx) {
                /* send_beacon(padapter);//send_beacon must execute on TSR level */
                set_tx_beacon_cmd(padapter);
        }
-#endif /* CONFIG_INTERRUPT_BASED_TXBCN */
 }
 
 /*
 
                if ((mode == _HW_STATE_STATION_) || (mode == _HW_STATE_NOLINK_)) {
                        {
                                StopTxBeacon(padapter);
-#ifdef CONFIG_INTERRUPT_BASED_TXBCN
-#ifdef CONFIG_INTERRUPT_BASED_TXBCN_EARLY_INT
-                               rtw_write8(padapter, REG_DRVERLYINT, 0x05); /*  restore early int time to 5ms */
-                               UpdateInterruptMask8812AU(padapter, true, 0, IMR_BCNDMAINT0_8723B);
-#endif /*  CONFIG_INTERRUPT_BASED_TXBCN_EARLY_INT */
-
-#ifdef CONFIG_INTERRUPT_BASED_TXBCN_BCN_OK_ERR
-                               UpdateInterruptMask8812AU(padapter, true, 0, (IMR_TXBCN0ERR_8723B|IMR_TXBCN0OK_8723B));
-#endif /*  CONFIG_INTERRUPT_BASED_TXBCN_BCN_OK_ERR */
-
-#endif /*  CONFIG_INTERRUPT_BASED_TXBCN */
                        }
 
                        /*  disable atim wnd */
                        ResumeTxBeacon(padapter);
                        rtw_write8(padapter, REG_BCN_CTRL, DIS_TSF_UDT|EN_BCN_FUNCTION|DIS_BCNQ_SUB);
                } else if (mode == _HW_STATE_AP_) {
-#ifdef CONFIG_INTERRUPT_BASED_TXBCN
-#ifdef CONFIG_INTERRUPT_BASED_TXBCN_EARLY_INT
-                       UpdateInterruptMask8723BU(padapter, true, IMR_BCNDMAINT0_8723B, 0);
-#endif /*  CONFIG_INTERRUPT_BASED_TXBCN_EARLY_INT */
-
-#ifdef CONFIG_INTERRUPT_BASED_TXBCN_BCN_OK_ERR
-                       UpdateInterruptMask8723BU(padapter, true, (IMR_TXBCN0ERR_8723B|IMR_TXBCN0OK_8723B), 0);
-#endif /*  CONFIG_INTERRUPT_BASED_TXBCN_BCN_OK_ERR */
-
-#endif /*  CONFIG_INTERRUPT_BASED_TXBCN */
 
                        ResumeTxBeacon(padapter);