linux-kernel - Re: [PATCH v25 03/12] LRNG

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Message-ID: <CALCETrVXGuShozaf5RpgmQnwtTpAbmaTVny+E0q8OE4OLuWwAQ@mail.gmail.com>
Date:   Tue, 19 Nov 2019 02:06:02 -0800
From:   Andy Lutomirski <luto@...nel.org>
To:     Stephan Müller <smueller@...onox.de>
Cc:     Arnd Bergmann <arnd@...db.de>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Linux Crypto Mailing List <linux-crypto@...r.kernel.org>,
        LKML <linux-kernel@...r.kernel.org>,
        Linux API <linux-api@...r.kernel.org>,
        "Eric W. Biederman" <ebiederm@...ssion.com>,
        "Alexander E. Patrakov" <patrakov@...il.com>,
        "Ahmed S. Darwish" <darwish.07@...il.com>,
        "Theodore Y. Ts'o" <tytso@....edu>, Willy Tarreau <w@....eu>,
        Matthew Garrett <mjg59@...f.ucam.org>,
        Vito Caputo <vcaputo@...garu.com>,
        Andreas Dilger <adilger.kernel@...ger.ca>,
        Jan Kara <jack@...e.cz>, Ray Strode <rstrode@...hat.com>,
        William Jon McCann <mccann@....edu>,
        zhangjs <zachary@...shancloud.com>,
        Andy Lutomirski <luto@...nel.org>,
        Florian Weimer <fweimer@...hat.com>,
        Lennart Poettering <mzxreary@...inter.de>,
        Nicolai Stange <nstange@...e.de>,
        "Peter, Matthias" <matthias.peter@....bund.de>,
        Marcelo Henrique Cerri <marcelo.cerri@...onical.com>,
        Roman Drahtmueller <draht@...altsekun.de>,
        Neil Horman <nhorman@...hat.com>
Subject: Re: [PATCH v25 03/12] LRNG - /proc interface

On Sun, Nov 17, 2019 at 4:16 AM Stephan Müller <smueller@...onox.de> wrote:
>
> Am Samstag, 16. November 2019, 17:39:40 CET schrieb Andy Lutomirski:
>
> Hi Andy,
>
> > > On Nov 16, 2019, at 1:40 AM, Stephan Müller <smueller@...onox.de> wrote:
> > >
> > > The LRNG /proc interface provides the same files as the legacy
> > > /dev/random. These files behave identically. Yet, all files are
> > > documented at [1].
> >
> > Why?
>
> I am not sure here: are you referring to the documentation? Or the one
> additional file?
>
> If it is the documentation, do you want me to add it to the patch description?
> I initially did not add it as these files were present and seemingly known
> what they provide. But I would add that documentation to the patch description
> if this is desired.

Sorry, I should have been a lot more explicit.  Why do you want to add
a new interface to read the RNG?  What's wrong with the old one?

I think your patch description should explain the purpose of the patch.