linux-kernel - Re: [PATCH -next 7/9] dmaengine: mmp

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Message-Id: <1dfd5bdc-36a9-4ccf-a07d-815f9951f3e2@app.fastmail.com>
Date: Mon, 19 Aug 2024 13:59:41 +0200
From: "Arnd Bergmann" <arnd@...db.de>
To: "Yuntao Liu" <liuyuntao12@...wei.com>,
 openipmi-developer@...ts.sourceforge.net, linux-kernel@...r.kernel.org,
 linux-arm-kernel@...ts.infradead.org, dmaengine@...r.kernel.org,
 "linux-edac@...r.kernel.org" <linux-edac@...r.kernel.org>,
 linux-i2c@...r.kernel.org, linux-usb@...r.kernel.org
Cc: "Corey Minyard" <minyard@....org>,
 "Ludovic.Desroches" <ludovic.desroches@...rochip.com>,
 "Vinod Koul" <vkoul@...nel.org>, "Daniel Mack" <daniel@...que.org>,
 "Haojian Zhuang" <haojian.zhuang@...il.com>,
 "Robert Jarzmik" <robert.jarzmik@...e.fr>, morbidrsa@...il.com,
 "Borislav Petkov" <bp@...en8.de>, "Tony Luck" <tony.luck@...el.com>,
 "James Morse" <james.morse@....com>,
 "Mauro Carvalho Chehab" <mchehab@...nel.org>,
 "Robert Richter" <rric@...nel.org>, codrin.ciubotariu@...rochip.com,
 "Andi Shyti" <andi.shyti@...nel.org>,
 "Nicolas Ferre" <nicolas.ferre@...rochip.com>,
 "Alexandre Belloni" <alexandre.belloni@...tlin.com>,
 "Claudiu Beznea" <claudiu.beznea@...on.dev>,
 "Greg Kroah-Hartman" <gregkh@...uxfoundation.org>,
 "Alan Stern" <stern@...land.harvard.edu>,
 Uwe Kleine-König <u.kleine-koenig@...gutronix.de>,
 Duje Mihanović <duje.mihanovic@...le.hr>,
 "Mark Brown" <broonie@...nel.org>,
 "Andy Shevchenko" <andriy.shevchenko@...ux.intel.com>
Subject: Re: [PATCH -next 7/9] dmaengine: mmp_pdma: fix module autoloading

On Mon, Aug 19, 2024, at 13:38, Yuntao Liu wrote:
> Add MODULE_DEVICE_TABLE(), so modules could be properly autoloaded
> based on the alias from platform_device_id table.
>
> Signed-off-by: Yuntao Liu <liuyuntao12@...wei.com>
> ---
>  drivers/dma/mmp_pdma.c | 1 +
>  1 file changed, 1 insertion(+)
>
> diff --git a/drivers/dma/mmp_pdma.c b/drivers/dma/mmp_pdma.c
> index 136fcaeff8dd..05d051ecf833 100644
> --- a/drivers/dma/mmp_pdma.c
> +++ b/drivers/dma/mmp_pdma.c
> @@ -1129,6 +1129,7 @@ static const struct platform_device_id 
> mmp_pdma_id_table[] = {
>  	{ "mmp-pdma", },
>  	{ },
>  };
> +MODULE_DEVICE_TABLE(platform, mmp_pdma_id_table);

It appears that this table was never used in upstream kernels,
as the driver already used DT when it was first added.

     Arnd