linux-kernel - Re: [PATCH 00/16] ARM: address -Wmissing-prototype warnings

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Message-ID: <202305161256.F6C079EAA@keescook>
Date:   Tue, 16 May 2023 12:56:38 -0700
From:   Kees Cook <keescook@...omium.org>
To:     Arnd Bergmann <arnd@...nel.org>
Cc:     Russell King <linux@...linux.org.uk>,
        Arnd Bergmann <arnd@...db.de>,
        Steven Rostedt <rostedt@...dmis.org>,
        Masami Hiramatsu <mhiramat@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Oleg Nesterov <oleg@...hat.com>,
        "Rafael J. Wysocki" <rafael@...nel.org>,
        Pavel Machek <pavel@....cz>,
        Linus Walleij <linus.walleij@...aro.org>,
        Ard Biesheuvel <ardb@...nel.org>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-trace-kernel@...r.kernel.org, linux-pm@...r.kernel.org
Subject: Re: [PATCH 00/16] ARM: address -Wmissing-prototype warnings

On Tue, May 16, 2023 at 05:45:49PM +0200, Arnd Bergmann wrote:
> From: Arnd Bergmann <arnd@...db.de>
> 
> This addresses all arm specific warnings outside of the mach-*/ code,
> which I've submitted separately. The majority of the patches should be
> straightforward, either adding an #include statement to get the right
> header, or ensuring that an unused global function is left out of the
> build when the prototype is hidden.
> 
> The ones that are a bit awkward are those that just add a prototype to
> shut up the warning, but the prototypes are never used for calling the
> function because the only caller is in assembler code. I tried to come
> up with other ways to shut up the compiler, and ideally this would be
> triggered by the 'asmlinkage' keyword as Ard suggested in the past, but
> I could not come up with a way to do this.
> 
> All of the warnings have to be addressed in some form before the
> warning can be enabled by default.

Thanks! These are all long overdue. For the series:

Reviewed-by: Kees Cook <keescook@...omium.org>

-- 
Kees Cook