On Mon, Nov 13, 2017 at 09:28:46AM +0100, Stefan Roese wrote:
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
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.