linux-kernel - Re: [PATCH 1/8] lib/scatterlist: add sg_set_dma

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Date:   Wed, 28 Mar 2018 05:37:44 -0700
From:   Christoph Hellwig <hch@...radead.org>
To:     Christian König 
        <ckoenig.leichtzumerken@...il.com>
Cc:     linaro-mm-sig@...ts.linaro.org, linux-media@...r.kernel.org,
        dri-devel@...ts.freedesktop.org, amd-gfx@...ts.freedesktop.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/8] lib/scatterlist: add sg_set_dma_addr() helper

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.