netdev - Re: [DRAFT PATCH] random32: make prandom

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Message-ID: <CA+icZUXAqWrHhipb8xO=Yf+MGCMUgjkcYAXursyTRbGgqFomPw@mail.gmail.com>
Date:   Thu, 27 Aug 2020 09:08:03 +0200
From:   Sedat Dilek <sedat.dilek@...il.com>
To:     Willy Tarreau <w@....eu>
Cc:     Amit Klein <aksecurity@...il.com>,
        Eric Dumazet <edumazet@...gle.com>,
        George Spelvin <lkml@....org>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        "Jason A. Donenfeld" <Jason@...c4.com>,
        Andy Lutomirski <luto@...nel.org>,
        Kees Cook <keescook@...omium.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Peter Zijlstra <peterz@...radead.org>,
        netdev <netdev@...r.kernel.org>
Subject: Re: [DRAFT PATCH] random32: make prandom_u32() output unpredictable

On Thu, Aug 27, 2020 at 3:09 AM Willy Tarreau <w@....eu> wrote:
>
> Hi Amit,
>
> On Thu, Aug 27, 2020 at 02:06:39AM +0300, Amit Klein wrote:
> > Hi
> >
> > Is there an ETA for this patch then?
>
> No particular ETA on my side, I was waiting for potential criticisms
> before going further. I suspect that if nobody complains anymore, it's
> an implicit voucher and I'll have to clean up and post the series then.
>

Hi Willy,

again a feedback from me as a tester of the last patchset.

I have tested it in several build-environments:

#1: GCC v10.2 + GNU/ld (BFD)
#2: GCC v10.2 + LLVM/ld.lld (LLD)
#3: GCC v10.2 + LLD plus all available LLVM "bin"utils v11.0.0-rc2
(replacements for GNU's nm, objdump, objcopy, ar, strin, ranlib, etc.)
#4: LLVM toolchain v11.0.0-rc2 and Clang-IAS (Integrated ASsembler)
#5: LLVM toolchain v11.0.0-rc2 and Clang-LTO (LinkTime Optimization)
#6: LLVM toolchain v11.0.0-rc2 and Clang-CFI (Control Flow Integrity)

For what are you waiting for :-)?

Feel free to add my...

Tested-by: Sedat Dilek <sedat.dilek@...il.com>

If you are interested in Clang-IAS/Clang-LTO/Clang-CFI... I want to
promote the LLVM MC (micro-conference) at Linux Plumbers Conference
2020 today (27-Aug-2020) - starting 16:00 UTC.
AFAICS it is freely available via YouTube (untested by me).

- Sedat -