linux-kernel - Re: [greybus-dev] [PATCH][next] greybus: Use fallthrough pseudo-keyword

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Date:   Wed, 29 Jul 2020 16:21:57 +0530
From:   Viresh Kumar <viresh.kumar@...aro.org>
To:     Alex Elder <elder@...e.org>
Cc:     "Gustavo A. R. Silva" <gustavoars@...nel.org>,
        Johan Hovold <johan@...nel.org>, Alex Elder <elder@...nel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        greybus-dev@...ts.linaro.org, linux-kernel@...r.kernel.org
Subject: Re: [greybus-dev] [PATCH][next] greybus: Use fallthrough
 pseudo-keyword

On 28-07-20, 17:37, Alex Elder wrote:
> On 7/27/20 1:32 PM, Gustavo A. R. Silva wrote:
> > Replace the existing /* fall through */ comments and its variants with
> > the new pseudo-keyword macro fallthrough[1].
> > 
> > [1] https://www.kernel.org/doc/html/v5.7/process/deprecated.html?highlight=fallthrough#implicit-switch-case-fall-through
> 
> Thanks for the patch.  It looks good, but it raises
> another question I'd like discussion on.
> 
> It seems that Johan likes default (or final) cases in
> switch statements without a "break" statement.  Viresh
> and Bryan appear to be fond of this too.
> 
> It's pedantic, but I don't like that.  Am I wrong?
>   --> Johan/Viresh/Bryan would you please comment?

I am not fond of them as they aren't required for the working of the code. It is
a bit like using an empty return statement for a routine with void return type,
though it surely adds some consistency to the switch case.

But if people really feel it must be there, then its fine :)

-- 
viresh