netdev - Re: [PATCH net v2 3/3] net: libwx: Fix FW mailbox unknown command

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Message-ID: <20250514112024.GJ3339421@horms.kernel.org>
Date: Wed, 14 May 2025 12:20:24 +0100
From: Simon Horman <horms@...nel.org>
To: Jiawen Wu <jiawenwu@...stnetic.com>
Cc: netdev@...r.kernel.org, rmk+kernel@...linux.org.uk, pabeni@...hat.com,
	kuba@...nel.org, edumazet@...gle.com, davem@...emloft.net,
	andrew+netdev@...n.ch, mengyuanlou@...-swift.com
Subject: Re: [PATCH net v2 3/3] net: libwx: Fix FW mailbox unknown command

On Tue, May 13, 2025 at 10:10:09AM +0800, Jiawen Wu wrote:
> For the new SW-FW interaction, missing the error return if there is an
> unknown command. It causes the driver to mistakenly believe that the
> interaction is complete. This problem occurs when new driver is paired
> with old firmware, which does not support the new mailbox commands.
> 
> Fixes: 2e5af6b2ae85 ("net: txgbe: Add basic support for new AML devices")
> Signed-off-by: Jiawen Wu <jiawenwu@...stnetic.com>

Reviewed-by: Simon Horman <horms@...nel.org>