linux-kernel - Re: [PATCH 7/7] [media] marvell-ccic needs VIDEOBUF2_DMA

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Message-ID: <20150128145843.16683733@lwn.net>
Date:	Wed, 28 Jan 2015 14:58:43 -0700
From:	Jonathan Corbet <corbet@....net>
To:	Arnd Bergmann <arnd@...db.de>
Cc:	Mauro Carvalho Chehab <mchehab@....samsung.com>,
	linux-media@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 7/7] [media] marvell-ccic needs VIDEOBUF2_DMA_SG

On Wed, 28 Jan 2015 22:17:47 +0100
Arnd Bergmann <arnd@...db.de> wrote:

> The vb2_dma_sg_memops pointer is only valid if VIDEOBUF2_DMA_SG is
> set, so we should select that to avoid this build error:
> 
> drivers/built-in.o: In function `mcam_v4l_open':
> :(.text+0x388d00): undefined reference to `vb2_dma_sg_memops'

I acked this one the last time it came around (I forget from who).  I
still don't know how to create a .config that exposes the problem, but
others have clearly succeeded in doing it.

Acked-by: Jonathan Corbet <corbet@....net>

jon
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