if (stainfo != NULL) {
                        RT_TRACE(_module_rtl871x_security_c_, _drv_err_, ("%s: stainfo!= NULL!!!\n", __func__));
 
-                       if (IS_MCAST(pattrib->ra))
+                       if (is_multicast_ether_addr(pattrib->ra))
                                prwskey = psecuritypriv->dot118021XGrpKey[psecuritypriv->dot118021XGrpKeyid].skey;
                        else
                                prwskey = &stainfo->dot118021x_UncstKey.skey[0];
        if (prxattrib->encrypt == _TKIP_) {
                stainfo = rtw_get_stainfo(&padapter->stapriv, &prxattrib->ta[0]);
                if (stainfo) {
-                       if (IS_MCAST(prxattrib->ra)) {
+                       if (is_multicast_ether_addr(prxattrib->ra)) {
                                if (!psecuritypriv->binstallGrpkey) {
                                        res = _FAIL;
                                        DBG_88E("%s:rx bc/mc packets, but didn't install group key!!!!!!!!!!\n", __func__);
                if (stainfo) {
                        RT_TRACE(_module_rtl871x_security_c_, _drv_err_, ("%s: stainfo!= NULL!!!\n", __func__));
 
-                       if (IS_MCAST(pattrib->ra))
+                       if (is_multicast_ether_addr(pattrib->ra))
                                prwskey = psecuritypriv->dot118021XGrpKey[psecuritypriv->dot118021XGrpKeyid].skey;
                        else
                                prwskey = &stainfo->dot118021x_UncstKey.skey[0];
                        struct security_priv *psecuritypriv = &padapter->securitypriv;
                        char iv[8], icv[8];
 
-                       if (IS_MCAST(prxattrib->ra)) {
+                       if (is_multicast_ether_addr(prxattrib->ra)) {
                                /* in concurrent we should use sw descrypt in group key, so we remove this message */
                                if (!psecuritypriv->binstallGrpkey) {
                                        res = _FAIL;