linux-kernel - Re: [PATCH 1/1] checkpatch: don't fake typedefs with #define

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Date:	Thu, 17 May 2012 14:24:57 -0700
From:	Joe Perches <joe@...ches.com>
To:	Phil Carmody <ext-phil.2.carmody@...ia.com>
Cc:	linux-kernel@...r.kernel.org, apw@...onical.com
Subject: Re: [PATCH 1/1] checkpatch: don't fake typedefs with #define

On Fri, 2012-05-18 at 00:16 +0300, Phil Carmody wrote:
> On 17/05/12 13:54 -0700, ext Joe Perches wrote:
> > > +# check for deliberate avoidance of the above anti-typedef rule
> > > +		if ($line =~ /#\s*define\s+$Ident\s+$Type\b/) {
> > > +			WARN("NEW_TYPEDEFS",
> > > +			     "do not fake typedefs using #define\n" . $herecurr);
> > > +		}
> > > +
> > 
> > I think the false positive rate is pretty high.
> > I used this and don't see too many I'd remove.
> > 
> > $ git grep -E "#\s*define\s+\w+\s+(struct|unsigned|char|short|int|long|const)\b"
> > 
> > Got an example you want this to find?
> 
> Too many. Alas I can't share them.

Too bad.

If all the defines end in _t maybe you could use
	if ($line =~ /^\+\s*#\s*define\s+\w+_t\s+$Type\b/) {
etc...


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