linux-kernel - Re: [PATCH 4/4] scripts/cvt_style.pl: Tool to reformat sources in various ways

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Date:   Sat, 5 Oct 2019 19:31:30 +0200
From:   Miguel Ojeda <miguel.ojeda.sandonis@...il.com>
To:     Joe Perches <joe@...ches.com>
Cc:     Linus Torvalds <torvalds@...ux-foundation.org>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        Kees Cook <keescook@...omium.org>,
        Borislav Petkov <bp@...en8.de>,
        "H . Peter Anvin" <hpa@...or.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Pavel Machek <pavel@....cz>,
        "Gustavo A . R . Silva" <gustavo@...eddedor.com>,
        Arnaldo Carvalho de Melo <acme@...nel.org>,
        Kan Liang <kan.liang@...ux.intel.com>,
        Namhyung Kim <namhyung@...nel.org>,
        Jiri Olsa <jolsa@...hat.com>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Shawn Landden <shawn@....icu>,
        "maintainer:X86 ARCHITECTURE (32-BIT AND 64-BIT)" <x86@...nel.org>,
        Nathan Chancellor <natechancellor@...il.com>,
        Nick Desaulniers <ndesaulniers@...gle.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        David Miller <davem@...emloft.net>,
        clang-built-linux <clang-built-linux@...glegroups.com>
Subject: Re: [PATCH 4/4] scripts/cvt_style.pl: Tool to reformat sources in
 various ways

Hi Joe,

On Sat, Oct 5, 2019 at 6:47 PM Joe Perches <joe@...ches.com> wrote:
>
> diff --git a/scripts/cvt_style.pl b/scripts/cvt_style.pl
> new file mode 100755
> index 000000000000..fcbda0b1c67a
> --- /dev/null
> +++ b/scripts/cvt_style.pl
> @@ -0,0 +1,808 @@
> +#!/usr/bin/perl -w

Nit: #!/usr/bin/env perl instead?

> +
> +# Change some style elements of a source file
> +# An imperfect source code formatter.
> +# Might make trivial patches a bit easier.
> +#
> +# usage: perl scripts/cvt_kernel_style.pl <files>
> +#
> +# Licensed under the terms of the GNU GPL License version 2

Nit: use # SPDX-License-Identifier: GPL-2.0-only instead

As for the commit itself: while I am sure this tool is very useful
(and certainly you put a *lot* of effort into this tool), I don't see
how it is related to the fallthrough remapping (at least the
non-fallthrough parts).

Also, we should consider whether we want more tools like this now or
simply put the efforts into moving to clang-format.

Cheers,
Miguel