It makes sense. Thanks for the clarification, Herbert.

One more question: are you planning to convert the ctr template to
skcipher?

-- 
Regards,
Marcelo

On Thu, Feb 23, 2017 at 07:21:56PM +0800, Herbert Xu wrote:
> Marcelo Cerri <marcelo.cerri@canonical.com> wrote:
> >
> > I noticed you used a similar approach in arch/s390/crypto/aes_s390.c
> > (commit 64e2680).
> > 
> > How do you ensure the skcipher operation will not be asynchronous? 
> 
> You need to set the bit CRYPTO_ALG_ASYNC in the mask field when
> allocating the algorithm to ensure that it's synchronous.
> 
> Cheers,
> -- 
> Email: Herbert Xu <herbert@gondor.apana.org.au>
> Home Page: http://gondor.apana.org.au/~herbert/
> PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt