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Date: Wed, 28 Mar 2018 05:37:44 -0700
From: Christoph Hellwig <hch@infradead.org>
To: Christian =?iso-8859-1?Q?K=F6nig?=
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Subject: Re: [PATCH 1/8] lib/scatterlist: add sg_set_dma_addr() helper
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On Sun, Mar 25, 2018 at 12:59:53PM +0200, Christian König wrote:
> Use this function to set an sg entry to point to device resources mapped
> using dma_map_resource(). The page pointer is set to NULL and only the DMA
> address, length and offset values are valid.

NAK.  Please provide a higher level primitive.

Btw, you series seems to miss a cover letter.