Re: xtensa build failures in -next due to DMA API changes

From: Guenter Roeck
Date: Tue Aug 25 2015 - 16:21:46 EST

Hi Christoph,

On Tue, Aug 25, 2015 at 10:15:32PM +0200, Christoph Hellwig wrote:
> Hi Guenter,
> > The problem seems to have been introduced with changes made by Christoph
> > Hellwig, coming in through Andrew's tree. Copying them here for comments.
> xtensa doesn't use the generic dma map implementation, so it shouldn't
> include dma-mapping-common.h anywhere, and in my tree it doesn't.
> Can you do a git-grep for dma-mapping-common.h on the tree that you
> see this error on? Nothing but arch/*/include/asm/dma-mapping.h should
> include it. In my tree it's all fine:
I also see

arch/xtensa/include/asm/dma-mapping.h:#include <asm-generic/dma-mapping-common.h>

It looks like there is a conflict with "xtensa: reimplement DMA API using common
helpers" by Max Filippov, which added the include. This patch is in -next.

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