netdev - Re: [PATCH net] net: ethernet: mtk_eth_soc: enable special tag when any MAC uses DSA

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Message-ID: <17958d10-80cb-b5a7-3a5b-97192de2266e@arinc9.com>
Date:   Wed, 8 Feb 2023 11:13:48 +0300
From:   Arınç ÜNAL <arinc.unal@...nc9.com>
To:     Jakub Kicinski <kuba@...nel.org>
Cc:     arinc9.unal@...il.com, Felix Fietkau <nbd@....name>,
        John Crispin <john@...ozen.org>,
        Sean Wang <sean.wang@...iatek.com>,
        Mark Lee <Mark-MC.Lee@...iatek.com>,
        Lorenzo Bianconi <lorenzo@...nel.org>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Paolo Abeni <pabeni@...hat.com>,
        Matthias Brugger <matthias.bgg@...il.com>,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>,
        Richard van Schagen <richard@...terhints.com>,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org, erkin.bozoglu@...ont.com,
        Frank Wunderlich <frank-w@...lic-files.de>
Subject: Re: [PATCH net] net: ethernet: mtk_eth_soc: enable special tag when
 any MAC uses DSA

On 8.02.2023 02:58, Jakub Kicinski wrote:
> On Tue, 7 Feb 2023 23:25:32 +0300 Arınç ÜNAL wrote:
>>>> As Paolo pointed out to me off-list this is pretty much a revert of
>>>> commit under Fixes. Is this an actual regression fix, or second MAC
>>>> as DSA port never worked but now you found a way to make it work?
>>>
>>> Second MAC as DSA master after hardware DSA untagging was enabled never
>>> worked. I first disabled it to make the communication work again, then,
>>> with this patch, I found a way to make it work which is what should've
>>> been done with the commit for adding hardware DSA untagging support.
>>
>> Should both commits be mentioned with Fixes tag?
> 
> No strong preference, TBH.
> 
> The motivation for my question was to try to figure out how long we
> should wait with applying this patch. I applied the commit under Fixes
> without waiting for a test from Frank, which made me feel a bit guilty
> :)

Oh that's fine, they were going to test on the same hardware I've got 
anyway. You can apply this one whenever is convenient.

Arınç