linux-kernel - Re: [PATCH v2] lib/crypto: blake2s: avoid indirect calls to compression function for Clang CFI

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Date:   Tue, 25 Jan 2022 13:23:34 +0100
From:   "Jason A. Donenfeld" <Jason@...c4.com>
To:     Eric Biggers <ebiggers@...nel.org>
Cc:     Linux ARM <linux-arm-kernel@...ts.infradead.org>,
        Linux Crypto Mailing List <linux-crypto@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        llvm@...ts.linux.dev, Nick Desaulniers <ndesaulniers@...gle.com>,
        Sami Tolvanen <samitolvanen@...gle.com>,
        Nathan Chancellor <nathan@...nel.org>,
        Herbert Xu <herbert@...dor.apana.org.au>,
        Miles Chen <miles.chen@...iatek.com>,
        Ard Biesheuvel <ardb@...nel.org>
Subject: Re: [PATCH v2] lib/crypto: blake2s: avoid indirect calls to
 compression function for Clang CFI

On 1/25/22, Eric Biggers <ebiggers@...nel.org> wrote:
> On Mon, Jan 24, 2022 at 08:28:49PM +0100, Jason A. Donenfeld wrote:
>> blake2s_compress_generic is weakly aliased by blake2s_generic. The
>
> Don't you mean "weakly aliased by blake2s_compress"?

Grrrr. Thanks.

>> Changes v1->v2:
>> - Wrapped columns at 80 for Eric.
>
> It is the recommended coding style, so not just for me :-)

I was under the impression this increased to 100 mid-2020 or so, and
checkpatch.pl now makes noise at that width instead.