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Subject: Re: [PATCH] sched/fair: Replace zero-length array with flexible-array
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To:     Joe Perches <joe@perches.com>,
        Peter Zijlstra <peterz@infradead.org>,
        "Gustavo A. R. Silva" <gustavo@embeddedor.com>
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        Dietmar Eggemann <dietmar.eggemann@arm.com>,
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From:   Valentin Schneider <valentin.schneider@arm.com>
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Date:   Sun, 16 Feb 2020 23:38:46 +0000
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On 14/02/2020 02:05, Joe Perches wrote:
> Nice.
> It would miss a few forms like:
> 
> 	typedef struct tagfoo {
> 		...
> 		type t[0];
> 	} foo;
> 
> and
> 
> 	struct {
> 		...
> 		type t[0];
> 	} foo;
> 
> and
> 
> 	struct foo {
> 		...
> 		type t[0];
> 	} *foo;
> 
> etc...
> 
> 

Right! Digging around for some examples on handling typedefs & co I stumbled
on this construct:

T {
   <blah>
};

This matches your typedef case, but none of the other two. I haven't found
a nice way to match them without listing down some special cases, which I
don't really like.

I might dig around sometime to figure out how this should be expressed; in
the meantime a simple 'grep -r "\[0\];"' will most likely yield faster results
(for hunting down ZLAs, that is).