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From: Geert Uytterhoeven <geert@linux-m68k.org>
To: asmadeus@codewreck.org
Cc: Greg KH <gregkh@linuxfoundation.org>,
	Miguel Ojeda Sandonis <miguel.ojeda.sandonis@gmail.com>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	Rasmus Villemoes <linux@rasmusvillemoes.dk>,
	efriedma@codeaurora.org, Christopher Li <sparse@chrisli.org>,
	Kees Cook <keescook@chromium.org>, Ingo Molnar <mingo@kernel.org>,
	Masahiro Yamada <yamada.masahiro@socionext.com>,
	Joe Perches <joe@perches.com>,
	"torvalds@linux-foundation.org" <torvalds@linux-foundation.org>,
	linux-sparse@vger.kernel.org
Subject: Re: [PATCH v2 2/2] Compiler Attributes: naked can be shared
Date: Thu, 20 Sep 2018 09:49:58 +0200	[thread overview]
Message-ID: <CAMuHMdXfSOxigSkV2Ui2akpUoSrkFu3HyVoJiQyTbZY0kGpRWg@mail.gmail.com> (raw)
In-Reply-To: <20180920073650.GA6001@nautica>

On Thu, Sep 20, 2018 at 9:37 AM Dominique Martinet
<asmadeus@codewreck.org> wrote:
> Greg Kroah-Hartman wrote on Thu, Sep 20, 2018:
> > "Fixes:" is not just for stable, we use it wherever we have a patch that
> > we know fixes a problem introduced in another patch.
> >
> > For this instance, I think we should just revert the offending patch,
> > which should resolve the issue for everyone and then you can try to redo
> > your series to get it right the next time.
> >
> > Sound good?
>
> Except that 815f0ddb346c ("include/linux/compiler*.h: make compiler-*.h
> mutually exclusive") itself fixes cafa0010cd51 ("Raise the minimum
> required gcc version to 4.6"), which breaks clang altogether (as used by
> example by bcc for most BPF programs, that I caught before -rc1 got
> released so we got both in rc1)
>
> I'm not aware of anything that would break if both were to be reverted,
> I have no opinion on which way to go.

I guess reverting them makes no difference for gcc >= 4.6.

For older compilers (which were declared unsupported by cafa0010cd51),
you also need
https://lore.kernel.org/lkml/20180814160208.4f4dd7ca142912f5894ddddd@linux-foundation.org/

Been there, done that, happy gcc-4.1.2 ;-)

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds

  reply	other threads:[~2018-09-20  7:50 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-09-18 16:55 [PATCH v2 0/2] Compiler Attributes: (naked only, for v4.19) Miguel Ojeda
2018-09-18 16:55 ` [PATCH v2 1/2] Compiler Attributes: naked was fixed in gcc 4.6 Miguel Ojeda
2018-09-18 16:55 ` [PATCH v2 2/2] Compiler Attributes: naked can be shared Miguel Ojeda
2018-09-18 17:34   ` Greg Kroah-Hartman
2018-09-18 18:56     ` Miguel Ojeda
2018-09-19 21:14       ` Greg Kroah-Hartman
2018-09-19 23:00         ` Miguel Ojeda
2018-09-20  6:00           ` Stefan Agner
2018-09-20  7:19             ` Greg Kroah-Hartman
2018-09-20  7:20           ` Greg Kroah-Hartman
2018-09-19 23:05         ` Dominique Martinet
2018-09-19 23:56           ` Miguel Ojeda
2018-09-20  0:10             ` Dominique Martinet
2018-09-20  7:22               ` Greg Kroah-Hartman
2018-09-20  7:36                 ` Dominique Martinet
2018-09-20  7:49                   ` Geert Uytterhoeven [this message]
2018-09-20 16:11                   ` Miguel Ojeda
2018-09-20 12:18                 ` Miguel Ojeda
2018-09-20 13:57 ` [PATCH v2 0/2] Compiler Attributes: (naked only, for v4.19) Greg Kroah-Hartman
2018-09-20 13:59   ` Greg Kroah-Hartman
2018-09-20 16:13     ` Miguel Ojeda

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