linux-kernel - Re: PROPOSAL: Extend inline asm syntax with size spec

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Message-ID: <5f987ecbb4962b4796615928d9d71f2cf9b21a3b.camel@perches.com>
Date:   Wed, 31 Oct 2018 22:20:00 -0700
From:   Joe Perches <joe@...ches.com>
To:     Peter Zijlstra <peterz@...radead.org>,
        Borislav Petkov <bp@...en8.de>
Cc:     Segher Boessenkool <segher@...nel.crashing.org>,
        Ingo Molnar <mingo@...nel.org>,
        Richard Biener <rguenther@...e.de>,
        Michael Matz <matz@...e.de>, gcc@....gnu.org,
        Nadav Amit <namit@...are.com>, Ingo Molnar <mingo@...hat.com>,
        linux-kernel@...r.kernel.org, x86@...nel.org,
        Masahiro Yamada <yamada.masahiro@...ionext.com>,
        Sam Ravnborg <sam@...nborg.org>,
        Alok Kataria <akataria@...are.com>,
        Christopher Li <sparse@...isli.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        "H. Peter Anvin" <hpa@...or.com>, Jan Beulich <JBeulich@...e.com>,
        Josh Poimboeuf <jpoimboe@...hat.com>,
        Juergen Gross <jgross@...e.com>,
        Kate Stewart <kstewart@...uxfoundation.org>,
        Kees Cook <keescook@...omium.org>,
        linux-sparse@...r.kernel.org,
        Philippe Ombredanne <pombredanne@...b.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        virtualization@...ts.linux-foundation.org,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Chris Zankel <chris@...kel.net>,
        Max Filippov <jcmvbkbc@...il.com>,
        linux-xtensa@...ux-xtensa.org,
        Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: PROPOSAL: Extend inline asm syntax with size spec

On Wed, 2018-10-31 at 13:55 +0100, Peter Zijlstra wrote:
> 
> Anyway, with the below patch, I get:
> 
>    text    data     bss     dec     hex filename
> 17385183        5064780 1953892 24403855        1745f8f defconfig-build/vmlinux
> 17385678        5064780 1953892 24404350        174617e defconfig-build/vmlinux
> 
> Which shows we inline more (look for asm_volatile for the actual
> changes).
[]
>  scripts/checkpatch.pl                              |  8 ++---
>  scripts/genksyms/keywords.c                        |  4 +--
>  scripts/kernel-doc                                 |  4 +--

I believe these should be excluded from the conversions.

Other than that, generic conversion by script seems a good idea.