Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20;
Date:   Thu, 9 Jun 2022 21:23:08 +0200
From:   Willy Tarreau <w@1wt.eu>
To:     Sedat Dilek <sedat.dilek@gmail.com>
Cc:     Linus Torvalds <torvalds@linux-foundation.org>,
        Kees Cook <keescook@chromium.org>, keyrings@vger.kernel.org,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
        Salvatore Bonaccorso <carnil@debian.org>,
        David Woodhouse <dwmw2@infradead.org>,
        David Howells <dhowells@redhat.com>,
        Tasmiya Nalatwad <tasmiya@linux.vnet.ibm.com>,
        James Bottomley <James.Bottomley@hansenpartnership.com>
Subject: Re: [Linux v5.17.9] -Wdeprecated-declarations warnings with LLVM-14
 and OpenSSL v3.0.x
Message-ID: <20220609192308.GB10732@1wt.eu>
References: <CA+icZUUFdsEyNybVORm4x7_bAyoc0zTnudtNdgnTqjvbYXJRYA@mail.gmail.com>
 <CA+icZUWxyNeZnEBDpDWxGc-qJ-jHwR0rJMBhk1a8StPHRgC6qA@mail.gmail.com>
 <CA+icZUW7y3JxQ3dCB8Wy83EjEyYj7z55nFUw-kZ+V4We22HZZg@mail.gmail.com>
 <CA+icZUVyp2CdX7m72GY-=DtK9J+64uHeWPr5-cvo8haQm_4hUw@mail.gmail.com>
 <CA+icZUWiYYQbAav7VxVsT0ikqCeLckym08Au8oSeyYjvJHcNbg@mail.gmail.com>
 <CA+icZUUOQcc4uiVbv+tJzPr_ED7e4tD0u9tC8mcn2BRe3sdPAg@mail.gmail.com>
 <CAHk-=wiOrXUr0wqHL+hfkzGg_+b7UvtLeB=59KsX8W939bTY-A@mail.gmail.com>
 <CA+icZUUma1B8KFWF-ed9sjXH4QpCRZ+B2pON3uAFkTUs77tMzw@mail.gmail.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <CA+icZUUma1B8KFWF-ed9sjXH4QpCRZ+B2pON3uAFkTUs77tMzw@mail.gmail.com>
User-Agent: Mutt/1.10.1 (2018-07-13)
Precedence: bulk

On Thu, Jun 09, 2022 at 09:19:20PM +0200, Sedat Dilek wrote:
> On Thu, Jun 9, 2022 at 9:05 PM Linus Torvalds
> <torvalds@linux-foundation.org> wrote:
> >
> > On Thu, Jun 9, 2022 at 11:41 AM Sedat Dilek <sedat.dilek@gmail.com> wrote:
> > >
> > > Why go back and forth... do it like Alexander the Great and the Gordian knot.
> > >
> > > Sword - Swash - Done.
> > >
> > > commit 6bfb56e93bcef41859c2d5ab234ffd80b691be35
> > > "cert host tools: Stop complaining about deprecated OpenSSL functions"
> >
> > Well, it's not like that is the *right* fix.
> >
> > But I think for now, the answer is "leave it like that until we can
> > just get rid of the ENGINE API entirely".
> >
> > I absolutely detest the "deprecation" warnings. We used to do that in
> > the kernel too, and it was a complete disaster. The warnings are very
> > noisy, and nobody ever cares about them, so it's simply not worth it.
> >
> > So we deprecated "__deprecated" in the kernel itself:
> >
> >   771c035372a0 deprecate the '__deprecated' attribute warnings
> > entirely and for good
> >
> > and I don't think we should care about it when it comes to OpenSSL either.
> >
> > Eventually, that deprecated interface will go away entirely, and by
> > then we hopefully don't care about really old openssl implementations
> > and will have gotten rid of the uses.
> >
> > But for now, I think putting our head in the sand is actually the
> > _better_ model rather than fighting some battle over old vs new
> > libraries.
> >
> > Because sometimes, if you ignore a problem, it really does just go away.
> >
> 
> To be honest: I like your approach, Linus.
> Very pragma-tic.
> That's why you use pragma's in your patch :-).
> 
> I invested too much of my lifetime in making things work "correctly".
> And yes, it's post-rc1...
> 
> Most of the apps in the Debian world passed the OpenSSL-v3 transition.

IIRC you can also disable the deprecation warnings by defining the
OPENSSL_SUPPRESS_DEPRECATED macro. It doesn't require to change the
compiler's options and allows us to put our head in the sand.

Willy