linux-kernel - Re: [PATCH] Makefile: use -Wno-main in the full kernel tree

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Message-ID: <CAHk-=wiA2wnA-3_iVjN9kUf-Gve2jD8UzDkvhDGLg=R=O1vN9g@mail.gmail.com>
Date:   Mon, 16 Aug 2021 15:31:33 -1000
From:   Linus Torvalds <torvalds@...ux-foundation.org>
To:     Randy Dunlap <rdunlap@...radead.org>
Cc:     Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Steven Rostedt <rostedt@...dmis.org>,
        Daniel Bristot de Oliveira <bristot@...nel.org>,
        Masahiro Yamada <masahiroy@...nel.org>,
        Michal Marek <michal.lkml@...kovi.net>,
        Linux Kbuild mailing list <linux-kbuild@...r.kernel.org>
Subject: Re: [PATCH] Makefile: use -Wno-main in the full kernel tree

On Mon, Aug 16, 2021 at 3:01 PM Randy Dunlap <rdunlap@...radead.org> wrote:
>
> That sounds likely. We can just ignore this if you had rather go that way.

I'm happy doing it, I don't think the Wmain warnings buy anything for
the kernel. My main worry is just that some compiler version might not
support it at all or similar, and it would cause problems that way.

Which is really the only reason why I'd like to narrow it down as much
as (trivially) possible.

It doesn't sound worth trying to pinpoint exact gcc version, but
making it gcc-only would at least narrow it down a _bit_.

                  Linus