From mboxrd@z Thu Jan  1 00:00:00 1970
From: Stephen Hemminger <stephen@networkplumber.org>
Subject: Re: [PATCH 2/2] virtio: change io privilege level as
 early as possible
Date: Mon, 12 Oct 2015 13:08:46 -0700
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I think David's patch should be in 2.2 (and 2.1.X if that starts out).
It solves the problem for both link state and secondary processes.

It may need to be updated for the current drivers/net/virtio layout.