linux-kernel - Re: [PATCH net v1] net: wan: fsl_qmc

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Message-ID: <20240731084443.GL1967603@kernel.org>
Date: Wed, 31 Jul 2024 09:44:43 +0100
From: Simon Horman <horms@...nel.org>
To: Herve Codina <herve.codina@...tlin.com>
Cc: "David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
	Christophe Leroy <christophe.leroy@...roup.eu>,
	Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
	netdev@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org,
	linux-kernel@...r.kernel.org,
	Thomas Petazzoni <thomas.petazzoni@...tlin.com>,
	stable@...r.kernel.org
Subject: Re: [PATCH net v1] net: wan: fsl_qmc_hdlc: Discard received CRC

On Tue, Jul 30, 2024 at 08:31:33AM +0200, Herve Codina wrote:
> Received frame from QMC contains the CRC.
> Upper layers don't need this CRC and tcpdump mentioned trailing junk
> data due to this CRC presence.
> 
> As some other HDLC driver, simply discard this CRC.

It might be nice to specifically site an example.
But yes, I see this pattern in hdlc_rx_done().

> 
> Fixes: d0f2258e79fd ("net: wan: Add support for QMC HDLC")
> Cc: stable@...r.kernel.org
> Signed-off-by: Herve Codina <herve.codina@...tlin.com>
> ---
>  drivers/net/wan/fsl_qmc_hdlc.c | 24 ++++++++++++++++++------
>  1 file changed, 18 insertions(+), 6 deletions(-)

The above notwithstanding, this looks good to me.

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