return 0;
 }
 
-static int sh_eth_tsu_write_entry(struct net_device *ndev, void *reg,
+static int sh_eth_tsu_write_entry(struct net_device *ndev, u16 offset,
                                  const u8 *addr)
 {
+       struct sh_eth_private *mdp = netdev_priv(ndev);
        u32 val;
 
        val = addr[0] << 24 | addr[1] << 16 | addr[2] << 8 | addr[3];
-       iowrite32(val, reg);
+       iowrite32(val, mdp->tsu_addr + offset);
        if (sh_eth_tsu_busy(ndev) < 0)
                return -EBUSY;
 
        val = addr[4] << 8 | addr[5];
-       iowrite32(val, reg + 4);
+       iowrite32(val, mdp->tsu_addr + offset + 4);
        if (sh_eth_tsu_busy(ndev) < 0)
                return -EBUSY;
 
                         ~(1 << (31 - entry)), TSU_TEN);
 
        memset(blank, 0, sizeof(blank));
-       ret = sh_eth_tsu_write_entry(ndev,
-                                    mdp->tsu_addr + reg_offset + entry * 8,
-                                    blank);
+       ret = sh_eth_tsu_write_entry(ndev, reg_offset + entry * 8, blank);
        if (ret < 0)
                return ret;
        return 0;
                i = sh_eth_tsu_find_empty(ndev);
                if (i < 0)
                        return -ENOMEM;
-               ret = sh_eth_tsu_write_entry(ndev,
-                                            mdp->tsu_addr + reg_offset + i * 8,
-                                            addr);
+               ret = sh_eth_tsu_write_entry(ndev, reg_offset + i * 8, addr);
                if (ret < 0)
                        return ret;