On Fri, Jan 25, 2019 at 02:26:27PM +0000, Horia Geanta wrote:
>
> Thus, it seems the problem lies in the fact that ahash_request structure 
> defines
> the digest buffer as "u8 *result" - thus the memory area might not be DMAable.

Oh OK, I misunderstood.  Anything that's in the form of a kernel
pointer must be assumed to be not DMAable.  So yes this needs to
be copied.

Thanks,
-- 
Email: Herbert Xu <herb...@gondor.apana.org.au>
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