Re: [net-next v10 4/7] net: mtip: The L2 switch driver for imx287

From: Lukasz Majewski
Date: Sun May 04 2025 - 02:28:44 EST


Hi Jakub,

> On Fri, 2 May 2025 09:44:44 +0200 Lukasz Majewski wrote:
> > This patch series provides support for More Than IP L2 switch
> > embedded in the imx287 SoC.
> >
> > This is a two port switch (placed between uDMA[01] and MAC-NET[01]),
> > which can be used for offloading the network traffic.
> >
> > It can be used interchangeably with current FEC driver - to be more
> > specific: one can use either of it, depending on the requirements.
> >
> > The biggest difference is the usage of DMA - when FEC is used,
> > separate DMAs are available for each ENET-MAC block.
> > However, with switch enabled - only the DMA0 is used to
> > send/receive data to/form switch (and then switch sends them to
> > respecitive ports).
> >
> > Signed-off-by: Lukasz Majewski <lukma@xxxxxxx>
> > Reviewed-by: Stefan Wahren <wahrenst@xxxxxxx>
> > Reviewed-by: Andrew Lunn <andrew@xxxxxxx>
>
> Now that basic build is green the series has advanced to full testing,
> where coccicheck says:
>
> drivers/net/ethernet/freescale/mtipsw/mtipl2sw.c:1961:1-6: WARNING:
> invalid free of devm_ allocated data
> drivers/net/ethernet/freescale/mtipsw/mtipl2sw.c:1237:16-19: ERROR:
> bus is NULL but dereferenced.

I'm sorry for not checking the code with coccinelle.

I do have already used sparse and checkpatch.

I will fix those errors.

Best regards,

Lukasz Majewski

--

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