Re: [PATCH 0/10] crypto: Driver conversions for DMA alignment

[Herbert Xu]

On Sun, Dec 04, 2022 at 01:32:08AM -0800, Christoph Hellwig wrote:
> On Fri, Dec 02, 2022 at 05:19:43PM +0800, Herbert Xu wrote:
> > These are the rest of the driver conversions in order for arm64
> > to safely lower the kmalloc alignment below that required for DMA.
> 
> Btw, drivers/crypto/ has a lot of weird and most likely uses of
> GFP_DMA.  Can someone look into those while we're doing DMA audits
> of the cryto drivers?

Yes they're clearly bogus.  Basically they are saying they want
memory that is aligned sufficiently for DMA.  So if Catalin's
patch-set will break this assumption, then all the GFP_DMA allocations
in drivers/crypto will need to be enlarged to take this into
account.

Cheers,
-- 
Email: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>
Home Page: http://gondor.apana.org.au/~herbert/
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