compat: backport eth_change_mtu and eth_validate_addr

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>

diff --git a/compat/compat-2.6.29.c b/compat/compat-2.6.29.c
index 5ee1e44cd347b91bd2824dd10ddcbad581ee3358..8c725ee73151386c8a5e6304b0594dda4e7ca087 100644 (file)
--- a/compat/compat-2.6.29.c
+++ b/compat/compat-2.6.29.c
@@ -98,6 +98,32 @@ int eth_mac_addr(struct net_device *dev, void *p)
        return 0;
 }
 EXPORT_SYMBOL(eth_mac_addr);
+
+/**
+ * eth_change_mtu - set new MTU size
+ * @dev: network device
+ * @new_mtu: new Maximum Transfer Unit
+ *
+ * Allow changing MTU size. Needs to be overridden for devices
+ * supporting jumbo frames.
+ */
+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;
+}
+EXPORT_SYMBOL(eth_change_mtu);
+
+int eth_validate_addr(struct net_device *dev)
+{
+       if (!is_valid_ether_addr(dev->dev_addr))
+               return -EADDRNOTAVAIL;
+
+       return 0;
+}
+EXPORT_SYMBOL(eth_validate_addr);
 /* Source: net/ethernet/eth.c */
 
 

diff --git a/include/linux/compat-2.6.29.h b/include/linux/compat-2.6.29.h
index 165b78c33c27e0e22c47cf2ded0095954c25fd2e..f063e240cef5c649ecfa3b04b9e799a3de5f89e8 100644 (file)
--- a/include/linux/compat-2.6.29.h
+++ b/include/linux/compat-2.6.29.h
@@ -246,6 +246,8 @@ extern void usb_unpoison_anchored_urbs(struct usb_anchor *anchor);
 )
 
 extern int eth_mac_addr(struct net_device *dev, void *p);
+extern int eth_change_mtu(struct net_device *dev, int new_mtu);
+extern int eth_validate_addr(struct net_device *dev);
 
 #else