RE: [PATCH net-next] hyperv: Add handler for RNDIS_STATUS_NETWORK_CHANGE event

[Haiyang Zhang]

> -----Original Message-----
> From: Richard Weinberger [mailto:richard.weinberger@xxxxxxxxx]
> Sent: Tuesday, October 27, 2015 6:36 PM
> To: David Miller <davem@xxxxxxxxxxxxx>
> Cc: Haiyang Zhang <haiyangz@xxxxxxxxxxxxx>; olaf@xxxxxxxxx; Greg Kroah-
> Hartman <greg@xxxxxxxxx>; netdev@xxxxxxxxxxxxxxx; jasowang@xxxxxxxxxx;
> driverdev-devel@xxxxxxxxxxxxxxxxxxxxxx; LKML <linux-
> kernel@xxxxxxxxxxxxxxx>
> Subject: Re: [PATCH net-next] hyperv: Add handler for
> RNDIS_STATUS_NETWORK_CHANGE event
> 
> On Mon, Jun 23, 2014 at 10:10 PM, David Miller <davem@xxxxxxxxxxxxx>
> wrote:
> > From: Haiyang Zhang <haiyangz@xxxxxxxxxxxxx>
> > Date: Mon, 23 Jun 2014 16:09:59 +0000
> >
> >> So, what's the equivalent or similar command to "network restart" on
> SLES12? Could
> >> you update the command line for the usermodehelper when porting this
> patch to SLES
> >> 12?
> >
> > No, you are not going to keep the usermodehelper invocation in your
> driver
> > please remove it.  It is absolutely inappropriate, and I strictly do
> not want
> > to keep it in there because other people will copy it and then we'll
> have a
> > real mess on our hands.
> 
> Sorry for digging up this old thread.
> While talking with some guys about usermodehelper abuses I came across
> this gem.
> Mainline still contains that "/etc/init.d/network restart" code.
> Haiyang, care to cleanup?

Hi Richard and others,

Thanks for the reminder. I will clean up the usermode helper.

Do you have suggestions of trigger DHCP refresh from kernel mode? Any 
sample code in the existing kernel code?

Thanks,
- Haiyang