On Wed, Nov 16, 2016 at 10:02:59AM +0100, Stephan Mueller wrote: > > One thing occurred to me: The copying of the AD would only be done of src != > dst. For the AF_ALG interface, I thing we always have src != dst due to the > user space/kernel space translation. That means the kernel copies the AD > around even in user space src == dst. Isn't that a waste? I.e. shouldn't we > handle the AD copying rather in user space than in kernel space? No that's not the case. You can do zero-copy, in which case src would be identical to dst. Cheers, -- Email: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx> Home Page: http://gondor.apana.org.au/~herbert/ PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt -- To unsubscribe from this list: send the line "unsubscribe linux-crypto" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
