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SubjectRe: [PATCH] Hyperv: Trigger DHCP renew after host hibernation
On Fri, Aug 08, 2014 at 08:11:20AM +0000, Dexuan Cui wrote:
> > From: Greg KH [mailto:gregkh@linuxfoundation.org]
> > Sent: Friday, August 8, 2014 11:32 AM
> > > Hi Richard and all,
> > >
> > > IMO the most feasible and need-the-least-change solution may be:
> > > the hyperv network VSC driver passes the event
> > > RNDIS_STATUS_NETWORK_CHANGE to the udev daemon?
> > >
> > > In this way, every distro only needs to add a udev rule, which should
> > > be simple.
> >
> > No, don't do that, again, act like any other network device, drop the
> > link and bring it up when it comes back.
> >
> > greg k-h
>
> Hi Greg,
> Thanks for the comment!
>
> Do you mean tearing down the net device and re-creating it (by
> register_netdev() and unregister_netdev)?

No, don't you have link-detect for your network device? Toggle that, I
thought patches to do this were posted a while ago...

But if you really want to tear the whole network device down and then
back up again, sure, that would also work.

good luck,

greg k-h


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