diff --git a/components/bt/host/bluedroid/stack/btm/btm_acl.c b/components/bt/host/bluedroid/stack/btm/btm_acl.c
index 192b62408b..24ffea9fa9 100644
--- a/components/bt/host/bluedroid/stack/btm/btm_acl.c
+++ b/components/bt/host/bluedroid/stack/btm/btm_acl.c
@@ -292,7 +292,9 @@ void btm_acl_created (BD_ADDR bda, DEV_CLASS dc, UINT8 bdn[BTM_MAX_REM_BD_NAME_L
                     p->conn_addr[0], p->conn_addr[1], p->conn_addr[2], p->conn_addr[3], p->conn_addr[4], p->conn_addr[5]);
 #endif
 #endif
+#if (CLASSIC_BT_INCLUDED == TRUE)
             p->switch_role_state = BTM_ACL_SWKEY_STATE_IDLE;
+#endif // (CLASSIC_BT_INCLUDED == TRUE)
 
             p->p_pm_mode_db = btm_pm_sm_alloc();
 #if BTM_PM_DEBUG == TRUE
@@ -384,7 +386,7 @@ void btm_acl_created (BD_ADDR bda, DEV_CLASS dc, UINT8 bdn[BTM_MAX_REM_BD_NAME_L
     }
 }
 
-
+#if (CLASSIC_BT_INCLUDED == TRUE)
 /*******************************************************************************
 **
 ** Function         btm_acl_report_role_change
@@ -408,6 +410,7 @@ void btm_acl_report_role_change (UINT8 hci_status, BD_ADDR bda)
         btm_cb.devcb.p_switch_role_cb = NULL;
     }
 }
+#endif // (CLASSIC_BT_INCLUDED == TRUE)
 
 /*******************************************************************************
 **
@@ -432,8 +435,10 @@ void btm_acl_removed (BD_ADDR bda, tBT_TRANSPORT transport)
     if (p != (tACL_CONN *)NULL) {
         p->in_use = FALSE;
 
+#if (CLASSIC_BT_INCLUDED == TRUE)
         /* if the disconnected channel has a pending role switch, clear it now */
         btm_acl_report_role_change(HCI_ERR_NO_CONNECTION, bda);
+#endif // (CLASSIC_BT_INCLUDED == TRUE)
 
         /* Only notify if link up has had a chance to be issued */
         if (p->link_up_issued) {
@@ -646,7 +651,7 @@ tBTM_STATUS BTM_GetRole (BD_ADDR remote_bd_addr, UINT8 *p_role)
     return (BTM_SUCCESS);
 }
 
-
+#if (CLASSIC_BT_INCLUDED == TRUE)
 /*******************************************************************************
 **
 ** Function         BTM_SwitchRole
@@ -865,6 +870,7 @@ void btm_acl_encrypt_change (UINT16 handle, UINT8 status, UINT8 encr_enable)
 #endif
     }
 }
+#endif // (CLASSIC_BT_INCLUDED == TRUE)
 /*******************************************************************************
 **
 ** Function         BTM_SetLinkPolicy
@@ -1472,6 +1478,7 @@ void btm_process_clk_off_comp_evt (UINT16 hci_handle, UINT16 clock_offset)
 
 }
 
+#if (CLASSIC_BT_INCLUDED == TRUE)
 /*******************************************************************************
 **
 ** Function         btm_acl_role_changed
@@ -1571,6 +1578,7 @@ void btm_acl_role_changed (UINT8 hci_status, BD_ADDR bd_addr, UINT8 new_role)
 #endif
 
 }
+#endif // #if (CLASSIC_BT_INCLUDED == TRUE)
 
 /*******************************************************************************
 **
@@ -2599,6 +2607,7 @@ UINT8 BTM_SetTraceLevel (UINT8 new_level)
     return (btm_cb.trace_level);
 }
 
+#if (CLASSIC_BT_INCLUDED == TRUE)
 /*******************************************************************************
 **
 ** Function         btm_cont_rswitch
@@ -2653,6 +2662,7 @@ void btm_cont_rswitch (tACL_CONN *p, tBTM_SEC_DEV_REC *p_dev_rec,
         }
     }
 }
+#endif // (CLASSIC_BT_INCLUDED == TRUE)
 
 #if (CLASSIC_BT_INCLUDED == TRUE)
 /*******************************************************************************
diff --git a/components/bt/host/bluedroid/stack/btm/btm_pm.c b/components/bt/host/bluedroid/stack/btm/btm_pm.c
index 915cd43d55..aa94c88c90 100644
--- a/components/bt/host/bluedroid/stack/btm/btm_pm.c
+++ b/components/bt/host/bluedroid/stack/btm/btm_pm.c
@@ -820,9 +820,10 @@ void btm_pm_proc_mode_change (UINT8 hci_status, UINT16 hci_handle, UINT8 mode, U
             (*btm_cb.pm_reg_db[yy].cback)( p->remote_addr, mode, interval, hci_status);
         }
     }
-
+#if (CLASSIC_BT_INCLUDED == TRUE)
     /* If mode change was because of an active role switch or change link key */
     btm_cont_rswitch(p, btm_find_dev(p->remote_addr), hci_status);
+#endif // (CLASSIC_BT_INCLUDED == TRUE)
 }
 
 /*******************************************************************************
diff --git a/components/bt/host/bluedroid/stack/btm/include/btm_int.h b/components/bt/host/bluedroid/stack/btm/include/btm_int.h
index d4699329ad..9a00c55afd 100644
--- a/components/bt/host/bluedroid/stack/btm/include/btm_int.h
+++ b/components/bt/host/bluedroid/stack/btm/include/btm_int.h
@@ -140,7 +140,10 @@ UINT8           legacy_auth_state;
 #define BTM_ACL_SWKEY_STATE_SWITCHING           3
 #define BTM_ACL_SWKEY_STATE_ENCRYPTION_ON       4
 #define BTM_ACL_SWKEY_STATE_IN_PROGRESS         5
+
+#if (CLASSIC_BT_INCLUDED == TRUE)
 UINT8           switch_role_state;
+#endif // (CLASSIC_BT_INCLUDED == TRUE)
 
 #define BTM_ACL_ENCRYPT_STATE_IDLE              0
 #define BTM_ACL_ENCRYPT_STATE_ENCRYPT_OFF       1   /* encryption turning off */
@@ -207,9 +210,11 @@ tBTM_CMPL_CB        *p_qossu_cmpl_cb;   /* Callback function to be called when
 /* qos setup function completes         */
 #endif // (CLASSIC_BT_INCLUDED == TRUE)
 
+#if (CLASSIC_BT_INCLUDED == TRUE)
 tBTM_ROLE_SWITCH_CMPL switch_role_ref_data;
 tBTM_CMPL_CB        *p_switch_role_cb;  /* Callback function to be called when  */
 /* requested switch role is completed   */
+#endif // (CLASSIC_BT_INCLUDED == TRUE)
 
 #if (BLE_HOST_READ_TX_POWER_EN == TRUE)
 TIMER_LIST_ENT       tx_power_timer;
diff --git a/components/bt/host/bluedroid/stack/btu/btu_hcif.c b/components/bt/host/bluedroid/stack/btu/btu_hcif.c
index 728d2b178f..1cc4dc23d7 100644
--- a/components/bt/host/bluedroid/stack/btu/btu_hcif.c
+++ b/components/bt/host/bluedroid/stack/btu/btu_hcif.c
@@ -1025,8 +1025,9 @@ static void btu_hcif_encryption_change_evt (UINT8 *p)
     STREAM_TO_UINT8  (status, p);
     STREAM_TO_UINT16 (handle, p);
     STREAM_TO_UINT8  (encr_enable, p);
-
+#if (CLASSIC_BT_INCLUDED == TRUE)
     btm_acl_encrypt_change (handle, status, encr_enable);
+#endif // (CLASSIC_BT_INCLUDED == TRUE)
     btm_sec_encrypt_change (handle, status, encr_enable);
 }
 #endif  ///SMP_INCLUDED == TRUE
@@ -1711,6 +1712,7 @@ static void btu_hcif_hdl_command_status (UINT16 opcode, UINT8 status, UINT8 *p_c
             case HCI_SWITCH_ROLE:
                 /* Tell BTM that the command failed */
                 /* read bd addr out of stored command */
+            #if (CLASSIC_BT_INCLUDED == TRUE)
                 if (p_cmd != NULL) {
                     p_cmd++;
                     STREAM_TO_BDADDR (bd_addr, p_cmd);
@@ -1719,6 +1721,7 @@ static void btu_hcif_hdl_command_status (UINT16 opcode, UINT8 status, UINT8 *p_c
                     btm_acl_role_changed(status, NULL, BTM_ROLE_UNDEFINED);
                 }
                 l2c_link_role_changed (NULL, BTM_ROLE_UNDEFINED, HCI_ERR_COMMAND_DISALLOWED);
+            #endif // (CLASSIC_BT_INCLUDED == TRUE)
                 break;
 
             case HCI_CREATE_CONNECTION:
diff --git a/components/bt/host/bluedroid/stack/l2cap/l2c_utils.c b/components/bt/host/bluedroid/stack/l2cap/l2c_utils.c
index 0d3fed93d1..cd44976756 100644
--- a/components/bt/host/bluedroid/stack/l2cap/l2c_utils.c
+++ b/components/bt/host/bluedroid/stack/l2cap/l2c_utils.c
@@ -2274,8 +2274,11 @@ BOOLEAN l2cu_create_conn (tL2C_LCB *p_lcb, tBT_TRANSPORT transport)
 #if BTM_SCO_INCLUDED == TRUE
     BOOLEAN         is_sco_active;
 #endif
+
+#if (CLASSIC_BT_INCLUDED == TRUE)
     list_node_t *p_node     = NULL;
     tL2C_LCB    *p_lcb_cur  = NULL;
+#endif // (CLASSIC_BT_INCLUDED == TRUE)
 
 #if (BLE_INCLUDED == TRUE)
     tBT_DEVICE_TYPE     dev_type;
@@ -2298,6 +2301,7 @@ BOOLEAN l2cu_create_conn (tL2C_LCB *p_lcb, tBT_TRANSPORT transport)
     }
 #endif
 
+#if (CLASSIC_BT_INCLUDED == TRUE)
     /* If there is a connection where we perform as a slave, try to switch roles
        for this connection */
     for (p_node = list_begin(l2cb.p_lcb_pool); p_node; p_node = list_next(p_node)) {
@@ -2341,6 +2345,8 @@ BOOLEAN l2cu_create_conn (tL2C_LCB *p_lcb, tBT_TRANSPORT transport)
     p_lcb->link_state = LST_CONNECTING;
 
     return (l2cu_create_conn_after_switch (p_lcb));
+#endif // (CLASSIC_BT_INCLUDED == TRUE)
+    return false;
 }
 
 /*******************************************************************************