size_t header_len = sizeof(*hdr);
        u32 tsf32;
 
+       if (!(hdr->magic & cpu_to_le16(0x0001))) {
+               if (priv->filter_flags & FIF_FCSFAIL)
+                       rx_status.flag |= RX_FLAG_FAILED_FCS_CRC;
+               else
+                       return 0;
+       }
+
        rx_status.signal = hdr->rssi;
        /* XX correct? */
        rx_status.qual = (100 * hdr->rssi) / 127;
 {
        struct p54_common *priv = dev->priv;
 
-       *total_flags &= FIF_BCN_PRBRESP_PROMISC;
+       *total_flags &= FIF_BCN_PRBRESP_PROMISC |
+                       FIF_PROMISC_IN_BSS |
+                       FIF_FCSFAIL;
+
+       priv->filter_flags = *total_flags;
 
        if (changed_flags & FIF_BCN_PRBRESP_PROMISC) {
                if (*total_flags & FIF_BCN_PRBRESP_PROMISC)
-                       p54_set_filter(dev, 0, NULL);
+                       p54_set_filter(dev, priv->filter_type, NULL);
+               else
+                       p54_set_filter(dev, priv->filter_type, priv->bssid);
+       }
+
+       if (changed_flags & FIF_PROMISC_IN_BSS) {
+               if (*total_flags & FIF_PROMISC_IN_BSS)
+                       p54_set_filter(dev, priv->filter_type |
+                               cpu_to_le16(0x8), NULL);
                else
-                       p54_set_filter(dev, 0, priv->bssid);
+                       p54_set_filter(dev, priv->filter_type &
+                               ~cpu_to_le16(0x8), priv->bssid);
        }
 }