linux-kernel - Re: [PATCH v1 2/3] zinc: Introduce minimal cryptography library

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Date:   Tue, 7 Aug 2018 12:43:35 -0700
From:   Andy Lutomirski <luto@...capital.net>
To:     "Jason A. Donenfeld" <Jason@...c4.com>,
        Ingo Molnar <mingo@...nel.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        linux-arch <linux-arch@...r.kernel.org>
Cc:     Eric Biggers <ebiggers3@...il.com>,
        Linux Crypto Mailing List <linux-crypto@...r.kernel.org>,
        LKML <linux-kernel@...r.kernel.org>,
        Netdev <netdev@...r.kernel.org>,
        David Miller <davem@...emloft.net>,
        Andrew Lutomirski <luto@...nel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Samuel Neves <sneves@....uc.pt>,
        "Daniel J . Bernstein" <djb@...yp.to>,
        Tanja Lange <tanja@...erelliptic.org>,
        Jean-Philippe Aumasson <jeanphilippe.aumasson@...il.com>,
        Karthikeyan Bhargavan <karthik.bhargavan@...il.com>
Subject: Re: [PATCH v1 2/3] zinc: Introduce minimal cryptography library

On Tue, Aug 7, 2018 at 11:54 AM, Jason A. Donenfeld <Jason@...c4.com> wrote:
> Hey Andy, Eric, & all,
>
> I've started the work of separating this out into 16 individual
> commits, have addressed numerous other things brought up like the
> ifdef maze, and have begun rewriting (parts of) the original commit
> message. It's still a work in progress, and I still have some work to
> do, but if you want to follow along, things are happening here:
>
> https://git.zx2c4.com/linux-dev/log/?h=jd/wireguard
>
> I'll be rebasing and reworking this continuously, but that's how it's
> shaping up.
>
> As I'm still working on it, I won't be submitting v2 today, but if you
> have suggestions or concerns or want to poke me while I'm working on
> v2, don't hesitate to send me private email or ping me in IRC (I'm
> "zx2c4" there) to chat.
>
> Regards,
> Jason

For "zinc: add simd helper", I think it should be in include/linux,
and include/linux/simd.h should (immediately or maybe in the future)
include <asm/simd.h> to pick up arch-specific stuff.  And the patch
should get sent to linux-arch@...r.kernel.org.

In your blake2s_arch() implementation, you're not passing in a
simd_context_t.  Is that still a work in progress?  I thought the plan
was to pass it in rather than doing the check in the _arch()
functions.