Re: [PATCH v6 05/14] crypto: marvell/CESA: add TDMA support

From: Herbert Xu
Date: Wed Jun 17 2015 - 08:26:39 EST

On Wed, Jun 17, 2015 at 01:33:24PM +0200, Boris Brezillon wrote:
> Actually, I think I don't need to save the dma_map_sg return val, since
> I'm using the sg_next function to iterate over the scatterlist. Am I
> right ?
> IOW, is the ->map_sg() function (in dma_map_ops) supposed to merge the
> contiguous entries and then flag the unused entries with the is_chain
> flag ?

Right. If you're simply using sg_dma_length in conjunction with
sg_next then you don't need the new length.

Email: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>
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