Re: [PATCH v3 02/25] drm: core: fix common struct sg_table related issues

From: Christoph Hellwig
Date: Fri May 08 2020 - 03:16:16 EST


On Fri, May 08, 2020 at 09:12:13AM +0200, Marek Szyprowski wrote:
> Then we would just need one more helper to construct scatterlist, as the
> above two are read-only don't allow to modify scatterlist:
>
> #define for_each_sgtable_sg(sgt, sg, i)                \
>        for_each_sg(sgt->sgl, sg, sgt->orig_nents, i)
>
> With the above 3 helpers we can probably get rid of all instances of
> sg_table->{nents,orig_nents} from the DRM code. I will prepare patches soon.

Sounds great, thanks!