linux-kernel - Re: [PATCH] mmc: winbond: don't build on M68K

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Message-ID: <CAK8P3a1WHPnLNE7=4872iaVcL708NcVmMhRvAR0OLujP=Y3Tjw@mail.gmail.com>
Date:   Sun, 17 Oct 2021 21:20:39 +0200
From:   Arnd Bergmann <arnd@...db.de>
To:     Randy Dunlap <rdunlap@...radead.org>
Cc:     Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Pierre Ossman <pierre@...man.eu>,
        Ulf Hansson <ulf.hansson@...aro.org>,
        linux-mmc <linux-mmc@...r.kernel.org>,
        Geert Uytterhoeven <geert@...ux-m68k.org>,
        linux-m68k <linux-m68k@...ts.linux-m68k.org>,
        Arnd Bergmann <arnd@...db.de>
Subject: Re: [PATCH] mmc: winbond: don't build on M68K

On Sun, Oct 17, 2021 at 7:59 PM Randy Dunlap <rdunlap@...radead.org> wrote:
>
> The Winbond MMC driver fails to build on ARCH=m68k so prevent
> that build config. Silences these build errors:
>
> ../drivers/mmc/host/wbsd.c: In function 'wbsd_request_end':
> ../drivers/mmc/host/wbsd.c:212:28: error: implicit declaration of function 'claim_dma_lock' [-Werror=implicit-function-declaration]
>   212 |                 dmaflags = claim_dma_lock();
> ../drivers/mmc/host/wbsd.c:215:17: error: implicit declaration of function 'release_dma_lock'; did you mean 'release_task'? [-Werror=implicit-function-declaration]
>   215 |                 release_dma_lock(dmaflags);
>

It looks like m68k and sparc declare this function in asm/floppy.h,
while everyone
else has it in asm/dma.h.

Not sure if it's worth fixing in a better way, but I suspect sparc
would have the
same issue here.

      Arnd