linux-kernel - Re: [PATCH 0/4] treewide: Add 'fallthrough' pseudo-keyword

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Message-ID: <CAHk-=whOF8heTGz5tfzYUBp_UQQzSWNJ_50M7-ECXkfFRDQWFA@mail.gmail.com>
Date:   Fri, 11 Oct 2019 09:29:59 -0700
From:   Linus Torvalds <torvalds@...ux-foundation.org>
To:     Joe Perches <joe@...ches.com>
Cc:     linux-sctp@...r.kernel.org,
        Miguel Ojeda <miguel.ojeda.sandonis@...il.com>,
        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>,
        "the arch/x86 maintainers" <x86@...nel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.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>,
        Jonathan Corbet <corbet@....net>,
        Vlad Yasevich <vyasevich@...il.com>,
        Neil Horman <nhorman@...driver.com>,
        Marcelo Ricardo Leitner <marcelo.leitner@...il.com>,
        "open list:DOCUMENTATION" <linux-doc@...r.kernel.org>,
        Netdev <netdev@...r.kernel.org>
Subject: Re: [PATCH 0/4] treewide: Add 'fallthrough' pseudo-keyword

On Sat, Oct 5, 2019 at 9:46 AM Joe Perches <joe@...ches.com> wrote:
>
> Add 'fallthrough' pseudo-keyword to enable the removal of comments
> like '/* fallthrough */'.

I applied patches 1-3 to my tree just to make it easier for people to
start doing this. Maybe some people want to do the conversion on their
own subsystem rather than with a global script, but even if not, this
looks better as a "prepare for the future" series and I feel that if
we're doing the "fallthrough" thing eventually, the sooner we do the
prepwork the better.

I'm a tiny bit worried that the actual conversion is just going to
cause lots of pain for the stable people, but I'll not worry about it
_too_ much. If the stable people decide that it's too painful for them
to deal with the comment vs keyword model, they may want to backport
these three patches too.

            Linus