linux-kernel - Re: [PATCH v3 1/7] compiler-clang: add build check for clang 10.0.1

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Message-ID: <20201118023118.GA1069826@ubuntu-m3-large-x86>
Date:   Tue, 17 Nov 2020 19:31:18 -0700
From:   Nathan Chancellor <natechancellor@...il.com>
To:     Nick Desaulniers <ndesaulniers@...gle.com>,
        Andrew Morton <akpm@...ux-foundation.org>
Cc:     John Hubbard <jhubbard@...dia.com>, jarkko.sakkinen@....fi,
        Andrey Konovalov <andreyknvl@...gle.com>,
        Alexei Starovoitov <ast@...nel.org>,
        clang-built-linux <clang-built-linux@...glegroups.com>,
        Daniel Borkmann <daniel@...earbox.net>,
        Marco Elver <elver@...gle.com>,
        Jarkko Sakkinen <jarkko@...nel.org>,
        Kees Cook <keescook@...omium.org>,
        LKML <linux-kernel@...r.kernel.org>,
        Masahiro Yamada <masahiroy@...nel.org>,
        Miguel Ojeda <miguel.ojeda.sandonis@...il.com>,
        Sedat Dilek <sedat.dilek@...il.com>,
        Vincenzo Frascino <vincenzo.frascino@....com>,
        Will Deacon <will@...nel.org>
Subject: Re: [PATCH v3 1/7] compiler-clang: add build check for clang 10.0.1

On Tue, Nov 17, 2020 at 10:46:29AM -0800, Nick Desaulniers wrote:
> On Mon, Nov 16, 2020 at 7:04 PM John Hubbard <jhubbard@...dia.com> wrote:
> >
> > Hi,
> >
> > I just ran into this and it's a real pain to figure out, because even
> > with the very latest Fedora 33 on my test machine, which provides clang
> > version 11.0.0:
> 
> Hi John,
> Thanks for the report.  The patch was picked up by AKPM and is in the -mm tree:
> https://ozlabs.org/~akpm/mmots/broken-out/compiler-clang-remove-version-check-for-bpf-tracing.patch

This should probably go to Linus as a regression fix in the next wave,
if that is possible.

Cheers,
Nathan