--- zzzz-none-000/linux-2.6.28.10/net/ethernet/eth.c	2009-05-02 18:54:43.000000000 +0000
+++ fusiv-7390-686/linux-2.6.28.10/net/ethernet/eth.c	2010-04-07 09:56:53.000000000 +0000
@@ -304,10 +304,14 @@
  */
 static int eth_change_mtu(struct net_device *dev, int new_mtu)
 {
-	if (new_mtu < 68 || new_mtu > ETH_DATA_LEN)
-		return -EINVAL;
-	dev->mtu = new_mtu;
-	return 0;
+#ifdef CONFIG_MACH_FUSIV
+    if (new_mtu < 68 || new_mtu > MAX_ETH_DATA_LEN)
+#else
+    if (new_mtu < 68 || new_mtu > ETH_DATA_LEN)
+#endif
+        return -EINVAL;
+        dev->mtu = new_mtu;
+        return 0;
 }
 
 static int eth_validate_addr(struct net_device *dev)