[PATCH v6 05/14] crypto: marvell/CESA: add TDMA support
herbert at gondor.apana.org.au
Wed Jun 17 05:25:33 PDT 2015
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 at gondor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
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