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net: init perm_addr in register_netdevice()
Benefit from the fact that dev->addr_assign_type is set to NET_ADDR_PERM in case the device has permanent address. This also fixes the problem that many drivers do not set perm_addr at all. Signed-off-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: David S. Miller <davem@davemloft.net>
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1 changed files with 7 additions and 0 deletions
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@ -6004,6 +6004,13 @@ int register_netdevice(struct net_device *dev)
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list_netdevice(dev);
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add_device_randomness(dev->dev_addr, dev->addr_len);
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/* If the device has permanent device address, driver should
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* set dev_addr and also addr_assign_type should be set to
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* NET_ADDR_PERM (default value).
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*/
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if (dev->addr_assign_type == NET_ADDR_PERM)
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memcpy(dev->perm_addr, dev->dev_addr, dev->addr_len);
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/* Notify protocols, that a new device appeared. */
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ret = call_netdevice_notifiers(NETDEV_REGISTER, dev);
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ret = notifier_to_errno(ret);
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