linux-kernel - Re: [PATCH] spi: SPI_FSL_DSPI should depend on HAS

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Message-ID: <CAMuHMdU6PGUrmMOKFH9AFwK7j-eyThVaofS0jKN=HiL0WupJEA@mail.gmail.com>
Date:   Wed, 14 Dec 2016 15:40:43 +0100
From:   Geert Uytterhoeven <geert@...ux-m68k.org>
To:     Mark Brown <broonie@...nel.org>
Cc:     Sanchayan Maity <maitysanchayan@...il.com>,
        linux-spi <linux-spi@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] spi: SPI_FSL_DSPI should depend on HAS_DMA

Hi Mark,

On Wed, Dec 14, 2016 at 3:37 PM, Mark Brown <broonie@...nel.org> wrote:
> On Wed, Dec 14, 2016 at 01:28:05PM +0100, Geert Uytterhoeven wrote:
>> If NO_DMA=y:
>
>>     ERROR: "bad_dma_ops" [drivers/spi/spi-fsl-dspi.ko] undefined!
>
>> Add a dependency on HAS_DMA to fix this.
>
> Honestly I think we should just fix the architectures that don't support
> DMA to provide compile out stubs for DMA, it seems like these
> dependencies are more trouble than they're worth.

Will that really help?

Then people will start adding "depends on HAS_DMA || COMPILE_TEST"
instead...

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds