linux-kernel - [PATCH] VIDEO_SH_MOBILE_CEU should depend on HAS

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Date:	Tue, 26 Aug 2008 21:37:21 +0200 (CEST)
From:	Geert Uytterhoeven <geert@...ux-m68k.org>
To:	Andrew Morton <akpm@...ux-foundation.org>,
	Magnus Damm <magnus.damm@...il.com>,
	Mauro Carvalho Chehab <mchehab@...radead.org>
cc:	Paul Mundt <lethal@...ux-sh.org>, video4linux-list@...hat.com,
	Linux Kernel Development <linux-kernel@...r.kernel.org>
Subject: [PATCH] VIDEO_SH_MOBILE_CEU should depend on HAS_DMA (was: Re: m68k
 allmodconfig)

	Hi Andrew,

On Thu, 14 Aug 2008, Andrew Morton wrote:
> ERROR: "dma_alloc_coherent" [drivers/media/video/videobuf-dma-contig.ko] undefined!
> ERROR: "dma_sync_single_for_cpu" [drivers/media/video/videobuf-dma-contig.ko] undefined!
> ERROR: "dma_free_coherent" [drivers/media/video/videobuf-dma-contig.ko] undefined!

M68k allmodconfig still selects Sun-3, which sets NO_DMA.
I guess you're also seeing this on the other NO_DMA platforms (h8300, m32r,
s390, and PCI-less SPARC)?

Below is a patch.

Shouldn't it also (or instead) depend on SUPERH or some SuperH platform?
Or is this not done to have more compile-coverage?

Subject: [PATCH] VIDEO_SH_MOBILE_CEU should depend on HAS_DMA

commit 0d3244d6439c8c31d2a29efd587c7aca9042c8aa ("V4L/DVB (8342):
sh_mobile_ceu_camera: Add SuperH Mobile CEU driver V3") introduced
VIDEO_SH_MOBILE_CEU, which selects VIDEOBUF_DMA_CONTIG. This circumvents the
dependency on HAS_DMA of VIDEOBUF_DMA_CONTIG.

Add a dependency on HAS_DMA to VIDEO_SH_MOBILE_CEU to fix this.

Signed-off-by: Geert Uytterhoeven <geert@...ux-m68k.org>
---
 drivers/media/video/Kconfig |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/media/video/Kconfig
+++ b/drivers/media/video/Kconfig
@@ -968,7 +968,7 @@ config VIDEO_PXA27x
 
 config VIDEO_SH_MOBILE_CEU
 	tristate "SuperH Mobile CEU Interface driver"
-	depends on VIDEO_DEV
+	depends on VIDEO_DEV && HAS_DMA
 	select SOC_CAMERA
 	select VIDEOBUF_DMA_CONTIG
 	---help---

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
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