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Message-ID: <BN1PR0301MB077055A8DD93983AF1C8E31ACA200@BN1PR0301MB0770.namprd03.prod.outlook.com>
Date:	Thu, 29 Oct 2015 19:09:12 +0000
From:	Haiyang Zhang <haiyangz@...rosoft.com>
To:	Richard Weinberger <richard.weinberger@...il.com>,
	David Miller <davem@...emloft.net>
CC:	"olaf@...fle.de" <olaf@...fle.de>,
	Greg Kroah-Hartman <greg@...ah.com>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	"jasowang@...hat.com" <jasowang@...hat.com>,
	"driverdev-devel@...uxdriverproject.org" 
	<driverdev-devel@...uxdriverproject.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: RE: [PATCH net-next] hyperv: Add handler for
 RNDIS_STATUS_NETWORK_CHANGE event



> -----Original Message-----
> From: Richard Weinberger [mailto:richard.weinberger@...il.com]
> Sent: Tuesday, October 27, 2015 6:36 PM
> To: David Miller <davem@...emloft.net>
> Cc: Haiyang Zhang <haiyangz@...rosoft.com>; olaf@...fle.de; Greg Kroah-
> Hartman <greg@...ah.com>; netdev@...r.kernel.org; jasowang@...hat.com;
> driverdev-devel@...uxdriverproject.org; LKML <linux-
> kernel@...r.kernel.org>
> 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@...emloft.net>
> wrote:
> > From: Haiyang Zhang <haiyangz@...rosoft.com>
> > 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

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