Hi Vinod,
On 15.11.2017 16:52, Vinod Koul wrote:
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.
No, its not the "old one" (DMA_SG) but the "new one" (DMA_MEMCPY_SG)
I'm referring to (this email thread). My impression was, that this
new interface has (or will get) in-kernel users and will be pulled at
some time.
Thanks,
Stefan
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