On Tue, Dec 26, 2017 at 11:06:02AM +0200, Gilad Ben-Yossef wrote:
>
> The hash state needs to be DMAed in and out of the hardware on each operation
> and I have no guarantee that the ahash request is allocated from DMAable 
> memory
> (i.e. AHASH_REQUEST_ON_STACK).

AHASH_REQUEST_ON_STACK cannot possibly be used on an async ahash
implementation for obvious reasons so this shouldn't be an issue.

The construct is simply a compatibility aid for sync-only users
to use the ahash interface.

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