linux-kernel - Re: [PATCH] [media] media: Kconfig: add dependency of HAS

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Message-ID: <CAMuHMdVYy+O6oAHAH-uQoEsrdCJD0ex9cp79ry=FbevDAQbH+A@mail.gmail.com>
Date:	Sat, 23 Jan 2016 14:55:20 +0100
From:	Geert Uytterhoeven <geert@...ux-m68k.org>
To:	Sudip Mukherjee <sudipm.mukherjee@...il.com>
Cc:	Mauro Carvalho Chehab <mchehab@....samsung.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Linux Media Mailing List <linux-media@...r.kernel.org>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [PATCH] [media] media: Kconfig: add dependency of HAS_DMA

On Wed, Dec 30, 2015 at 2:26 PM, Sudip Mukherjee
<sudipm.mukherjee@...il.com> wrote:
> The build of m32r allmodconfig fails with the error:
> drivers/media/v4l2-core/videobuf2-dma-contig.c:484:2:
>         error: implicit declaration of function 'dma_get_cache_alignment'
>
> The build of videobuf2-dma-contig.c depends on HAS_DMA and it is
> correctly mentioned in the Kconfig but the symbol VIDEO_STI_BDISP also
> selects VIDEOBUF2_DMA_CONTIG, so it is trying to compile
> videobuf2-dma-contig.c even though HAS_DMA is not defined.
>
> Signed-off-by: Sudip Mukherjee <sudip@...torindia.org>

Acked-by: Geert Uytterhoeven <geert@...ux-m68k.org>

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