netdev - Re: [PATCH] net: allow interface to be set into vrf if a vif in same vrf

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Date:   Thu, 01 Mar 2018 13:28:24 -0500 (EST)
From:   David Miller <davem@...emloft.net>
To:     mmanning@...tta.mail-att.com
Cc:     netdev@...r.kernel.org, dsahern@...il.com
Subject: Re: [PATCH] net: allow interface to be set into vrf if a vif in
 same vrf

From: Mike Manning <mmanning@...tta.mail-att.com>
Date: Mon, 26 Feb 2018 16:48:56 +0000

> Setting an interface into a vrf fails with 'RTNETLINK answers: File
> exists' if one of its vifs is already in the same vrf. As the vrf is an
> upper device of the vif, it is also showing up as an upper device of
> the interface itself. The solution is to restrict this check to devices
> other than master. As only one master device can be linked to a device,
> in this case the check is for the upper device (vrf) to be linked to as
> being the master device rather than any other upper device.
> 
> Signed-off-by: Mike Manning <mmanning@....com>

David A., please review.