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

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Message-ID: <CAFxkdAo0MbdmNQmChuDNEJN6DMN5-_fsph8QeU4dY2CuwgRzaw@mail.gmail.com>
Date:   Wed, 12 Jan 2022 08:19:26 -0600
From:   Justin Forbes <jmforbes@...uxtx.org>
To:     "Jason A. Donenfeld" <Jason@...c4.com>
Cc:     Ard Biesheuvel <ardb@...nel.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>,
        Linux Kbuild mailing list <linux-kbuild@...r.kernel.org>
Subject: Re: [PATCH v2] lib/crypto: add prompts back to crypto libraries

On Wed, Jan 12, 2022 at 8:15 AM 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.

Specifically in this menu, users were expecting to see it in the
Cryptographic API menu.  I think having it in the main menu just below
this entry is much more appropriate than being buried under another
menu.  Particularly if the goal is to get rid of the menu again all
together once we can audit the full set of deps on crypto libraries.

Justin