On Wed,  3 Apr 2019 00:52:47 -0400
Si-Wei Liu <[email protected]> wrote:

>  
> +     if (unlikely(dev->flags & IFF_UP)) {
> +             struct netdev_notifier_change_info change_info = {
> +                     .info.dev = dev,
> +             };
> +
> +             call_netdevice_notifiers_info(NETDEV_CHANGE,
> +                                           &change_info.info);
> +     }

This notifier is not really necessary, there already is a CHANGENAME
that gets sent.

NETDEV_CHANGE is used in other cases to mean that the state (flags)
have changed.

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