netif_addr_lock_bh(dev);
        netdev_for_each_mc_addr(ha, dev) {
-               int i;
-
-               seq_printf(seq, "%-4d %-15s %-5d %-5d ", dev->ifindex,
-                          dev->name, ha->refcount, ha->global_use);
-
-               for (i = 0; i < dev->addr_len; i++)
-                       seq_printf(seq, "%02x", ha->addr[i]);
-
-               seq_putc(seq, '\n');
+               seq_printf(seq, "%-4d %-15s %-5d %-5d %*phN\n",
+                          dev->ifindex, dev->name,
+                          ha->refcount, ha->global_use,
+                          (int)dev->addr_len, ha->addr);
        }
        netif_addr_unlock_bh(dev);
        return 0;