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Message-ID: <a78d9dcd-0bc1-7e98-a8f1-e5d6cd0c09a3@intel.com>
Date:   Thu, 18 May 2023 14:56:52 -0700
From:   Dave Hansen <dave.hansen@...el.com>
To:     Arnd Bergmann <arnd@...nel.org>, x86@...nel.org
Cc:     Arnd Bergmann <arnd@...db.de>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
        Dave Hansen <dave.hansen@...ux.intel.com>,
        "H. Peter Anvin" <hpa@...or.com>,
        Andy Lutomirski <luto@...nel.org>,
        Steven Rostedt <rostedt@...dmis.org>,
        Masami Hiramatsu <mhiramat@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Juergen Gross <jgross@...e.com>,
        "Srivatsa S. Bhat (VMware)" <srivatsa@...il.mit.edu>,
        Alexey Makhalov <amakhalov@...are.com>,
        VMware PV-Drivers Reviewers <pv-drivers@...are.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Darren Hart <dvhart@...radead.org>,
        Andy Shevchenko <andy@...radead.org>,
        Boris Ostrovsky <boris.ostrovsky@...cle.com>,
        "Rafael J. Wysocki" <rafael@...nel.org>,
        linux-kernel@...r.kernel.org, linux-trace-kernel@...r.kernel.org,
        virtualization@...ts.linux-foundation.org,
        linux-pci@...r.kernel.org, platform-driver-x86@...r.kernel.org,
        xen-devel@...ts.xenproject.org, linux-pm@...r.kernel.org,
        linux-mm@...ck.org
Subject: Re: [PATCH 00/20] x86: address -Wmissing-prototype warnings

On 5/16/23 12:35, Arnd Bergmann wrote:
> From: Arnd Bergmann <arnd@...db.de>
> 
> This addresses all x86 specific prototype warnings. 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 using the asmlinkage annotation,
> but with no success.
> 
> All of the warnings have to be addressed in some form before the warning
> can be enabled by default.

I picked up the ones that were blatantly obvious, but left out 03, 04,
10, 12 and 19 for the moment.

BTW, I think the i386 allyesconfig is getting pretty lightly tested
these days.  I think you and I hit the same mlx4 __bad_copy_from()
compile issue.

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