[dm-devel] [PATCH 2/2] crypto/algapi - make crypto_xor() take separate dst and src arguments

[Herbert Xu]

On Mon, Jul 10, 2017 at 02:45:48PM +0100, Ard Biesheuvel wrote:
> There are quite a number of occurrences in the kernel of the pattern
> 
>     if (dst != src)
>             memcpy(dst, src, walk.total % AES_BLOCK_SIZE);
>     crypto_xor(dst, final, walk.total % AES_BLOCK_SIZE);
> 
> or
> 
>     crypto_xor(keystream, src, nbytes);
>     memcpy(dst, keystream, nbytes);

What keeping crypto_xor as it is and adding a new entry point for
the 4-argument case?

Cheers,
-- 
Email: Herbert Xu <herbert at gondor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt