On Mon, Nov 13, 2017 at 09:28:46AM +0100, Stefan Roese wrote: > Hi Vinod, > > On 31.08.2017 12:57, Robin Murphy wrote: > >On 30/08/17 19:25, Dave Jiang wrote: > >>On 08/30/2017 11:18 AM, Robin Murphy wrote: > >>>On 25/08/17 21:59, Dave Jiang wrote: > >>>>Adding a dmaengine transaction operation that allows copy to/from a > >>>>scatterlist and a flat buffer. > >>> > >>>Apologies if I'm late to the party, but doesn't DMA_SG already cover > >>>this use-case? As far as I can see, all this does is save the caller > >>>from setting up a single-entry scatterlist to describe the buffer - even > >>>if such a simplified interface is justified it seems like something that > >>>could be implemented as a wrapper around dmaengine_prep_dma_sg() rather > >>>than the providers having to implement a whole extra callback. > >>> > >> > >>DMA_SG is queued to be removed in 4.14. There is no in kernel consumer > >>for the code. > > > >Ah, I see, that's what I was missing. So we're effectively just > >replacing that interface with a more pragmatic alternative - that makes > >sense. > > What are the plans with this new DMA_MEMCPY_SG interface? When will it > hit mainline or is something missing? The old one was removed in 4.14 so if you have a usage feel free to send a patch to add this with usage. Thanks -- ~Vinod -- To unsubscribe from this list: send the line "unsubscribe dmaengine" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
