linux-kernel - Re: [PATCH v2] net: ll_temac: Use one return statement instead of two

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Date:	Mon, 11 May 2015 09:00:53 -0700
From:	Joe Perches <joe@...ches.com>
To:	Julia Lawall <julia.lawall@...6.fr>
Cc:	Michal Simek <michal.simek@...inx.com>,
	linux-kernel@...r.kernel.org,
	Markus Elfring <elfring@...rs.sourceforge.net>
Subject: Re: [PATCH v2] net: ll_temac: Use one return statement instead of
 two

On Mon, 2015-05-11 at 17:48 +0200, Julia Lawall wrote:
> > > A coccinelle script might be rather more complicated
> > > than the simpler grep above, but perhaps the script
> > > could be a bit more complete as it could likely look
> > > at more code indentation styles.
> >
> > Julia: Any comment?
> 
> Here is what I had in mind:
> 
> if (...) {
>   ... when != goto l;
>   return C;
> }
> return C;
> 
> C is a constant, to avoid that its value depends on the code in the ...

Sure but I think that would miss several instances like:

	switch (<foo>) {
		...
	default:
		return <bar>;
	}
	return <bar>;

or the similar

	if (foo) {
		if (qux)
			return <bar>;
	} else {
		return <baz>;
	}

	return <baz>;


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