Re: [PATCH v3 0/3] Rust scatterlist abstractions

From: Greg KH
Date: Sat Jun 10 2023 - 11:35:30 EST


On Sat, Jun 10, 2023 at 05:33:47PM +0200, Greg KH wrote:
> On Sat, Jun 10, 2023 at 06:49:06PM +0800, Qingsong Chen wrote:
> > Hi All!
> >
> > This is a version of scatterlist abstractions for Rust drivers.
> >
> > Scatterlist is used for efficient management of memory buffers, which is
> > essential for many kernel-level operations such as Direct Memory Access
> > (DMA) transfers and crypto APIs.
> >
> > This patch should be a good start to introduce the crypto APIs for Rust
> > drivers and to develop cipher algorithms in Rust later.
>
> I thought we were getting rid of the scatter list api for the crypto
> drivers, so this shouldn't be needed going forward, right? Why not just
> use the direct apis instead?

See https://lore.kernel.org/r/ZH2hgrV6po9dkxi+@xxxxxxxxxxxxxxxxxxx for
the details of that (sorry I forgot the link first time...)

greg k-h