RE: [PATCH] media: vb2: dma-sg allocator: change scatterlist allocation method

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Hello,

On Friday, August 12, 2011 11:55 PM Laurent Pinchart wrote:

> On Wednesday 10 August 2011 10:23:37 Marek Szyprowski wrote:
> > From: Andrzej Pietrasiewicz <andrzej.p@xxxxxxxxxxx>
> >
> > Scatter-gather lib provides a helper functions to allocate scatter list,
> > so there is no need to use vmalloc for it. sg_alloc_table() splits
> > allocation into page size chunks and links them together into a chain.
> 
> Last time I check ARM platforms didn't support SG list chaining. Has that been
> fixed ?

DMA-mapping code for ARM platform use for_each_sg() macro which has no problems
with chained SG lists.

(snipped)

Best regards
-- 
Marek Szyprowski
Samsung Poland R&D Center



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