linux-kernel - [rfc PATCH] checkpatch: allow multiple const * types

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Date:	Fri, 25 Apr 2014 20:29:59 -0700
From:	Joe Perches <joe@...ches.com>
To:	Dan Carpenter <dan.carpenter@...cle.com>,
	Andy Whitcroft <apw@...dowen.org>,
	Andrew Morton <akpm@...ux-foundation.org>
Cc:	Nicolas Del Piano <ndel314@...il.com>, gregkh@...uxfoundation.org,
	devel@...verdev.osuosl.org, linux-kernel@...r.kernel.org,
	mail@...ndporr.me.uk
Subject: [rfc PATCH] checkpatch: allow multiple const * types

On Fri, 2014-04-25 at 10:50 +0300, Dan Carpenter wrote:
> On Fri, Apr 25, 2014 at 01:06:44AM -0300, Nicolas Del Piano wrote:
> > diff --git a/drivers/staging/comedi/drivers.c b/drivers/staging/comedi/drivers.c
[]
> > @@ -439,6 +439,7 @@ static void *comedi_recognize(struct comedi_driver *driv, const char *name)
> >  static void comedi_report_boards(struct comedi_driver *driv)
> >  {
> >  	unsigned int i;
> > +
> >  	const char *const *name_ptr;
> 
> The original code was correct.  This is a bug in checkpatch.pl.  The
> missing line check should count any lines starting with "const" or
> "static" as declarations.

Right, thanks for the report.

I'm not around for a couple weeks.
I'll fix it properly later.

It looks like the $Type test in checkpatch
should allow multiple pointer declarations like
	"const foo * const *"
instead of just
	"const foo * const"

but it takes awhile to test that it doesn't stuff up
something else.

Andy?  Any opinion of this?

---
 scripts/checkpatch.pl | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 89f44f1..daa4767 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -433,7 +433,7 @@ sub build_types {
 		  }x;
 	$Type	= qr{
 			$NonptrType
-			(?:(?:\s|\*|\[\])+\s*const|(?:\s|\*|\[\])+|(?:\s*\[\s*\])+)?
+			(?:(?:\s|\*|\[\])+\s*const|(?:\s|\*|\[\])+|(?:\s*\[\s*\])+)*
 			(?:\s+$Inline|\s+$Modifier)*
 		  }x;
 	$Declare	= qr{(?:$Storage\s+(?:$Inline\s+)?)?$Type};


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