Re: [RFC PATCH] compiler_attributes.h: Add 'fallthrough' pseudo keyword for switch/case use

[Neil Horman]

On Thu, Aug 01, 2019 at 10:26:29PM +0200, Miguel Ojeda wrote:
> On Thu, Aug 1, 2019 at 10:10 PM <hpa@xxxxxxxxx> wrote:
> >
> > I'm not disagreeing... I think using a macro makes sense.
> 
> It is either a macro or waiting for 5+ years (while we keep using the
> comment style) :-)
> 
> In case it helps to make one's mind about whether to go for it or not,
> I summarized the advantages and a few other details in the patch I
> sent in October:
> 
>   https://github.com/ojeda/linux/commit/668f011a2706ea555987e263f609a5deba9c7fc4
> 
> It would be nice, however, to discuss whether we want __fallthrough or
> fallthrough. The former is consistent with the rest of compiler
> attributes and makes it clear it is not a keyword, the latter is
> consistent with "break", "goto" and "return", as Joe's patch explains.
> 
I was having this conversation with Joe, and I agree, I like the idea of
macroing up the fall through attribute, but naming it __fallthrough seems more
consistent to me with the other attribute macros.  I also feel like its more
recognizable as a macro.  Naming it fallthrough just makes it look like someone
forgot to put /**/'s around it to me.

Neil

> Cheers,
> Miguel
>