netdev - Re: [PATCH] net: clear iflink when moving to a new netns

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Message-ID: <CAHA+R7NJ2uPbVdcdktD9R-_1QZnbwJXV+NP6jK0_ZTn=TF687g@mail.gmail.com>
Date:	Wed, 12 Feb 2014 17:20:16 -0800
From:	Cong Wang <cwang@...pensource.com>
To:	Stephen Hemminger <stephen@...workplumber.org>
Cc:	Cong Wang <xiyou.wangcong@...il.com>,
	netdev <netdev@...r.kernel.org>,
	"David S. Miller" <davem@...emloft.net>,
	"Eric W. Biederman" <ebiederm@...ssion.com>,
	Eric Dumazet <eric.dumazet@...il.com>,
	Hannes Frederic Sowa <hannes@...essinduktion.org>
Subject: Re: [PATCH] net: clear iflink when moving to a new netns

On Wed, Feb 12, 2014 at 8:33 AM, Stephen Hemminger
<stephen@...workplumber.org> wrote:
>
> This also breaks propogation of state changes from lower device
> to upper device. Things like carrier and up/down.
>

macvlan_device_event() handles this pretty well by using a pointer to
net_device.
I don't see it is a problem from the code.
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