linux-kernel - Re: [PATCH 4.18 101/135] hv_netvsc: pair VF based on serial number

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Message-ID: <20181017132018.GA135013@sasha-vm>
Date:   Wed, 17 Oct 2018 09:20:18 -0400
From:   Sasha Levin <sashal@...nel.org>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     Haiyang Zhang <haiyangz@...rosoft.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "stable@...r.kernel.org" <stable@...r.kernel.org>,
        Stephen Hemminger <sthemmin@...rosoft.com>,
        "David S. Miller" <davem@...emloft.net>,
        Sasha Levin <Alexander.Levin@...rosoft.com>
Subject: Re: [PATCH 4.18 101/135] hv_netvsc: pair VF based on serial number

On Wed, Oct 17, 2018 at 09:46:29AM +0200, Greg Kroah-Hartman wrote:
>Also, this really feels like a "new feature" to me.  Can someone explain
>what bug this is fixing?

Reading the commit log/code it seems that it was possible for 2 (or
more) synthetic devices to have the same MAC address even though the
current code treats them as unique and uses it as a lookup index.

Let me confirm with Stephen. This came through the regular AUTOSEL
process and I don't really know more about this patch than you do at
this point.

--
Thanks,
Sasha