linux-kernel - Re: [PATCH] x86/syscalls: Mark expected switch fall-throughs

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Date:   Wed, 29 Nov 2017 09:10:50 -0600
From:   "Gustavo A. R. Silva" <garsilva@...eddedor.com>
To:     Thomas Gleixner <tglx@...utronix.de>
Cc:     Alan Cox <gnomes@...rguk.ukuu.org.uk>,
        Ingo Molnar <mingo@...hat.com>,
        "H. Peter Anvin" <hpa@...or.com>, x86@...nel.org,
        LKML <linux-kernel@...r.kernel.org>,
        Kees Cook <keescook@...omium.org>
Subject: Re: [PATCH] x86/syscalls: Mark expected switch fall-throughs


Quoting Thomas Gleixner <tglx@...utronix.de>:

>
> So I have to ask WHY this information was not in the changelog of the patch
> in question:
>
>    1) How it works
>
>    2) Why comments have been chosen over macros
>

I will add this info and send the patch again.

>> In preparation to enabling -Wimplicit-fallthrough, mark switch cases
>> where we are expecting to fall through.
>
> It's not a reviewers job to chase that information down.
>
> While I can understand that the comments are intentional due to existing
> tools, I still prefer the macro/annotation. But I'm not religious about it
> when there is common consensus. :)
>

Awesome

Thanks, Thomas.
--
Gustavo A. R. Silva