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List:       linux-keyrings
Subject:    Re: [PATCH 1/1] sign-file: Use OpenSSL provided define to compile out deprecated APIs
From:       Lee Jones <lee.jones () linaro ! org>
Date:       2021-10-05 18:11:02
Message-ID: YVyVNkijABL7CxnM () google ! com
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On Tue, 05 Oct 2021, Eric Biggers wrote:

> On Tue, Oct 05, 2021 at 10:14:58AM -0700, Adam Langley wrote:
> > On Tue, Oct 5, 2021 at 10:01 AM Eric Biggers <ebiggers@kernel.org> wrote:
> > > I ran into these same -Wdeprecated-declarations compiler warnings on another
> > > project that uses the ENGINE API to access OpenSSL's support for PKCS#11 tokens.
> > > The conclusion was that in OpenSSL 3.0, the new API for PKCS#11 support isn't
> > > actually ready yet, so we had to keep using the ENGINE API and just add
> > > -Wno-deprecated-declarations to the compiler flags.
> > >
> > > Your patch just removes support for PKCS#11 in that case, which seems
> > > undesirable.  (Unless no one is actually using it?)
> > 
> > The patch removes support when OPENSSL_NO_ENGINE is defined, but
> > that's not defined by default in OpenSSL 3.0. (Unless something
> > changed recently.)
> > 
> > When OPENSSL_NO_ENGINE is defined, ENGINE support is not compiled into
> > OpenSSL and the headers don't include the functions:
> > https://github.com/openssl/openssl/blob/master/include/openssl/engine.h
> > .
> 
> Okay so this patch is actually a build fix for when OpenSSL doesn't include
> ENGINE support?

Correct.

> Currently this patch claims that it's removing the use of a
> "deprecated" API, which is something entirely different.

I see your point.

Happy to rejig the commit message if that would help.

-- 
Lee Jones [李琼斯]
Senior Technical Lead - Developer Services
Linaro.org │ Open source software for Arm SoCs
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