Re: [PATCH net-next v3 02/17] zinc: introduce minimal cryptography library

From: Ard Biesheuvel
Date: Wed Sep 12 2018 - 14:19:25 EST

On 12 September 2018 at 20:16, Jason A. Donenfeld <Jason@xxxxxxxxx> wrote:
> Hi Eric,
> On Wed, Sep 12, 2018 at 12:08 AM Eric Biggers <ebiggers@xxxxxxxxxx> wrote:
>> I'd strongly prefer the assembly to be readable too. Jason, I'm not sure if
>> you've actually read through the asm from the OpenSSL implementations, but the
>> generated .S files actually do lose a lot of semantic information that was in
>> the original .pl scripts.
> The thing to keep in mind is that the .S was not directly and blindly
> generated from the .pl. We started with the output of the .pl, and
> then, particularly in the case of x86_64, worked with it a lot, and
> now it's something a bit different. We've definitely spent a lot of
> time reading that assembly.

Can we please have those changes as a separate patch? Preferably to
the .pl file rather than the .S file, so we can easily distinguish the
code from upstream from the code that you modified.

> I'll see if I can improve the readability with some register name
> remapping on ARM. No guarantees, but I'll play a bit and see if I can
> make it a bit better.
> Jason