[RFC PATCH] crypto: flush poison data

[Christoph Hellwig]

On Wed, Jul 06, 2022 at 10:47:24AM +0100, Ben Dooks wrote:
> I'm not sure that the dma-mapping code for non-coherent riscv systems
> did get sorted. I couldn't find any when looking in 5.17.

Yes, none of that is upstream.  But as supporting it is essential for
the allwinner SOCs I'm pretty sure Corentin is not actually using an
upstream kernel anyway.