Hi Herbert, On Sun, 17 May 2015 18:34:40 +0800 Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx> wrote: > On Sun, May 17, 2015 at 10:45:08AM +0200, Boris Brezillon wrote: > > > > From my POV this is not asynchronous at all (see my comments inline), > > but maybe Herbert can confirm that. > > Well we don't actually require drivers to be asynchronous. It is > obviously the preferred method but some hardware may not be capable > of that. Yep, but then they shouldn't be declared with CRYPTO_ALG_ASYNC and as an ablkcipher algorithm (*Asynchronous* Block Cipher), right ? Regarding the capabilities of this crypto engine, from what I've seen, it is definitely capable of doing asynchronous requests ;-). Best Regards, Boris -- Boris Brezillon, Free Electrons Embedded Linux and Kernel engineering http://free-electrons.com -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html