netdev - Re: [PATCH] net: ethernet: mtk_eth_soc: avoid writing to ESW registers on MT7628

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Message-ID: <20260104081044.66dbc237@kernel.org>
Date: Sun, 4 Jan 2026 08:10:44 -0800
From: Jakub Kicinski <kuba@...nel.org>
To: Joris Vaisvila <joey@...yisr.com>
Cc: netdev@...r.kernel.org, nbd@....name, sean.wang@...iatek.com,
 lorenzo@...nel.org, andrew+netdev@...n.ch, davem@...emloft.net,
 edumazet@...gle.com, pabeni@...hat.com
Subject: Re: [PATCH] net: ethernet: mtk_eth_soc: avoid writing to ESW
 registers on MT7628

On Tue, 30 Dec 2025 11:10:41 +0200 Joris Vaisvila wrote:
> The MT7628 does not expose MAC control registers. Writes to these
> registers corrupt the ESW VLAN configuration. Existing drivers
> never use the affected features, so this went unnoticed.
> 
> This patch skips MCR register reads and writes on MT7628, preventing
> invalid register access.

please add a suitable Fixes tag and repost
-- 
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