From: "Michael S. Tsirkin" <mst@redhat.com>
To: Stephen Hemminger <stephen@networkplumber.org>
Cc: Si-Wei Liu <si-wei.liu@oracle.com>,
sridhar.samudrala@intel.com, davem@davemloft.net, kubakici@wp.pl,
alexander.duyck@gmail.com, jiri@resnulli.us,
netdev@vger.kernel.org,
virtualization@lists.linux-foundation.org, liran.alon@oracle.com,
boris.ostrovsky@oracle.com, vijay.balakrishna@oracle.com
Subject: Re: [PATCH net v6] failover: allow name change on IFF_UP slave interfaces
Date: Fri, 5 Apr 2019 18:01:43 -0400 [thread overview]
Message-ID: <20190405175429-mutt-send-email-mst@kernel.org> (raw)
In-Reply-To: <20190405144701.25a6b55b@shemminger-XPS-13-9360>
On Fri, Apr 05, 2019 at 02:47:01PM -0700, Stephen Hemminger wrote:
> On Wed, 3 Apr 2019 00:52:47 -0400
> Si-Wei Liu <si-wei.liu@oracle.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.
The point is some existing scripts might not expect name
change to happen without a status change afterwards (since it was
impossible for so long). So this reports a change
to make sure scripts do not miss it.
next prev parent reply other threads:[~2019-04-05 22:01 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-04-03 4:52 [PATCH net v6] failover: allow name change on IFF_UP slave interfaces Si-Wei Liu
2019-04-05 20:40 ` si-wei liu
2019-04-05 21:28 ` Michael S. Tsirkin
2019-04-05 21:47 ` Stephen Hemminger
2019-04-06 7:21 ` si-wei liu
2019-04-07 2:45 ` Samudrala, Sridhar
2019-04-08 20:56 ` si-wei liu
2019-04-05 21:47 ` Stephen Hemminger
2019-04-05 22:01 ` Michael S. Tsirkin [this message]
2019-04-07 15:41 ` Stephen Hemminger
2019-04-05 22:13 ` si-wei liu
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