linux-kernel - Re: [PATCH v2] lib/crypto: add prompts back to crypto libraries

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Message-ID: <CAMj1kXFSN0yJzmgDKp1bmF7wgaAwJba+FteStJEKH7HDBSP5kQ@mail.gmail.com>
Date:   Wed, 12 Jan 2022 15:41:49 +0100
From:   Ard Biesheuvel <ardb@...nel.org>
To:     "Jason A. Donenfeld" <Jason@...c4.com>
Cc:     "Justin M. Forbes" <jforbes@...oraproject.org>,
        Herbert Xu <herbert@...dor.apana.org.au>,
        "David S. Miller" <davem@...emloft.net>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Linux Crypto Mailing List <linux-crypto@...r.kernel.org>,
        LKML <linux-kernel@...r.kernel.org>,
        Justin Forbes <jmforbes@...uxtx.org>,
        Linux Kbuild mailing list <linux-kbuild@...r.kernel.org>
Subject: Re: [PATCH v2] lib/crypto: add prompts back to crypto libraries

On Wed, 12 Jan 2022 at 15:15, Jason A. Donenfeld <Jason@...c4.com> wrote:
>
> On Wed, Jan 12, 2022 at 3:13 PM Ard Biesheuvel <ardb@...nel.org> wrote:
> >
> > On Wed, 12 Jan 2022 at 15:12, Jason A. Donenfeld <Jason@...c4.com> wrote:
> > >
> > > On Wed, Jan 12, 2022 at 3:08 PM Ard Biesheuvel <ardb@...nel.org> wrote:
> > > >
> > > > On Wed, 12 Jan 2022 at 15:08, Jason A. Donenfeld <Jason@...c4.com> wrote:
> > > > >
> > > > > On Wed, Jan 12, 2022 at 3:06 PM Ard Biesheuvel <ardb@...nel.org> wrote:
> > > > > >
> > > > > > On Wed, 12 Jan 2022 at 15:05, Jason A. Donenfeld <Jason@...c4.com> wrote:
> > > > > > >
> > > > > > > This commit also needs this snippet:
> > > > > > >
> > > > > >
> > > > > > Why?
> > > > >
> > > > > So that the menu of crypto library options is inside of the library
> > > > > menu. Otherwise this will appear inside of the _root_ menu, which
> > > > > isn't what we want.
> > > >
> > > > Why not? I think that's fine.
> > >
> > > It's really not appropriate there. Look:
> > >
> > > - Justin vanilla: https://i.imgur.com/14UBpML.png
> > > - Justin + Jason: https://i.imgur.com/lDfZnma.png
> > >
> > > We really don't want another top level menu. We're not that important.
> > > Rather, crypto libraries are but one ordinary subset of ordinary
> > > libraries, just like how the build system does it too.
> >
> > I disagree. The root menu is a jumble of things already, and having
> > this one at the root is really not a problem.
>
> Should CRC routines also go into a submenu and be put at the root?
> What about other library functions? Library functions belong in the
> library submenu. We don't need our own top level submenu for this. The
> whole point of lib/crypto/ is that they're just boring library
> functions. Libraries! So, part of the libraries menu.

Shouting it doesn't make it true.

Nobody cares about what the root menu looks like, and given that this
patch is presumably going to be sent as an early fix on top of your
rng branch, it is better not to touch anything under crypto/ unless
you are 100% certain it is not going to conflict with Herbert's tree.