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Date: Mon, 25 Apr 2016 12:10:04 -0700
From: Christoph Hellwig <hch@infradead.org>
To: Christoph Hellwig <hch@infradead.org>,
        Laurent Pinchart <laurent.pinchart@ideasonboard.com>,
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Subject: Re: [PATCH v5 3/9] dma-mapping: add dma_{map,unmap}_resource
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On Mon, Apr 25, 2016 at 04:26:19PM +0200, Niklas S?derlund wrote:
> I have followed the call path from the usage in 
> drivers/dma/sh/rcar-dmac.c and made sure the dma_addr_t is not used in a 
> bad way.

The dma-debug routines are called from the generic code in
include/linux/dma-mapping.h, and from my reading of the other patches
in your series you are calling it for these as well.