Re: [PATCH 07/10] crypto: Use ARCH_DMA_MINALIGN instead of ARCH_KMALLOC_MINALIGN

Christoph Hellwig
2022-04-21T07:46:09Z

On Thu, Apr 21, 2022 at 09:36:46AM +0200, Arnd Bergmann wrote:
> Does this work on all 32-bit architectures as well? I see that you added
> swiotlb for ARM LPASE systems in 2019, but I don't know if that has any
> additional requirements for the other 32-bit architectures that don't
> select SWIOTLB today.

We'll need to call swiotlb_init for all these cases, but there is no other
fundamental requirement. We can probably do with a way smaller buffer
if bouncing is only needed for misaligned allocations.