linux-kernel - Re: [PATCH] dmaengine: fsl-edma: fix Makefile logic

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Message-Id: <5d2d8e57-0041-40af-b237-05f3275008bd@app.fastmail.com>
Date: Thu, 11 Jan 2024 17:23:03 +0100
From: "Arnd Bergmann" <arnd@...db.de>
To: "Frank Li" <Frank.li@....com>
Cc: "Arnd Bergmann" <arnd@...nel.org>, "Vinod Koul" <vkoul@...nel.org>,
 "Peng Fan" <peng.fan@....com>, "Fabio Estevam" <festevam@...x.de>,
 dmaengine@...r.kernel.org, linux-kernel@...r.kernel.org, imx@...ts.linux.dev
Subject: Re: [PATCH] dmaengine: fsl-edma: fix Makefile logic

On Thu, Jan 11, 2024, at 17:09, Frank Li wrote:
> On Thu, Jan 11, 2024 at 07:23:34AM +0100, Arnd Bergmann wrote:
>> On Thu, Jan 11, 2024, at 01:02, Frank Li wrote:
>
> It should be better link into same module because some debugfs and trace
> improvement are on my TODO list. Export symbols will make more unnessary
> complex.

Ok, I'll see what I can come up with

> Or simple exclude MCF_EDMA by change Kconfig
>
> config MCF_EDMA                                                            
>         tristate "Freescale eDMA engine support, ColdFire mcf5441x SoCs"   
>         depends on !FSL_EDMA
> 		   ^^^^^
> 	depends on M5441x || COMPILE_TEST 

This does not actually prevent building both as modules, it
only enforces that you can't have them both enabled if one
of them is built-in.

     Arnd