[netdrvr sis900] fix multicast bug

drivers/net/sis900.c

@@ -2093,7 +2093,7 @@ static void set_rx_mode(struct net_device *net_dev)
 		     i++, mclist = mclist->next) {
 			unsigned int bit_nr =
 				sis900_mcast_bitnr(mclist->dmi_addr, revision);
-			mc_filter[bit_nr >> 4] |= (1 << bit_nr);
+			mc_filter[bit_nr >> 4] |= (1 << (bit_nr & 0xf));
 		}
 	}