netdev - Re: [PATCH net v6] failover: allow name change on IFF

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Message-ID: <20190405144701.25a6b55b@shemminger-XPS-13-9360>
Date:   Fri, 5 Apr 2019 14:47:01 -0700
From:   Stephen Hemminger <stephen@...workplumber.org>
To:     Si-Wei Liu <si-wei.liu@...cle.com>
Cc:     mst@...hat.com, sridhar.samudrala@...el.com, davem@...emloft.net,
        kubakici@...pl, alexander.duyck@...il.com, jiri@...nulli.us,
        netdev@...r.kernel.org, virtualization@...ts.linux-foundation.org,
        liran.alon@...cle.com, boris.ostrovsky@...cle.com,
        vijay.balakrishna@...cle.com
Subject: Re: [PATCH net v6] failover: allow name change on IFF_UP slave
 interfaces

On Wed,  3 Apr 2019 00:52:47 -0400
Si-Wei Liu <si-wei.liu@...cle.com> 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.