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From: Michael Stefaniuc <mstefani@redhat.com>
To: Julia Lawall <julia.lawall@lip6.fr>, Joe Perches <joe@perches.com>
Cc: cocci <cocci@systeme.lip6.fr>, LKML <linux-kernel@vger.kernel.org>
Subject: Re: [Cocci] coccinelle: bool if (foo) return true; else return false;
Date: Wed, 20 Apr 2016 09:19:20 +0200	[thread overview]
Message-ID: <57172D78.707@redhat.com> (raw)
In-Reply-To: <alpine.DEB.2.02.1604192115300.2054@localhost6.localdomain6>

On 04/19/2016 09:15 PM, Julia Lawall wrote:
> 
> 
> On Tue, 19 Apr 2016, Joe Perches wrote:
> 
>> There's ~150 of these in the kernel.
>>
>> Maybe there's use for this conversion to be added
>> to scripts/coccinelle/misc/boolreturn.cocci or in
>> a separate file.
>>
>> $ cat booltruefalse.cocci
>> @@
>> identifier fn;
>> expression e;
>> typedef bool;
>> symbol true;
>> symbol false;
>> @@
>>
>> bool fn ( ... )
>> {
>> <...
>> -	if (e) return true; else return false;
>> +	return e;
Shouldn't that be:
    return !!e
?


>> ...>
>> }
>>
>> @@
>> identifier fn;
>> expression e;
>> @@
>>
>> bool fn ( ... )
>> {
>> <...
>> -	if (e) return false; else return true;
>> +	return !e;
>> ...>
>> }
> 
> Thanks for the suggestion.  I will take care of it shortly.


bye
	michael

  reply	other threads:[~2016-04-20  7:19 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-04-16 17:34 [PATCH -next] kernel: Replace ACCESS_ONCE with READ/WRITE_ONCE Davidlohr Bueso
2016-04-16 19:04 ` [PATCH] checkpatch: Whine about ACCESS_ONCE Joe Perches
2016-04-16 19:48   ` Joe Perches
2016-04-17  5:43     ` Julia Lawall
2016-04-17  8:27       ` Joe Perches
2016-04-17 11:17         ` Julia Lawall
2016-04-17 11:39         ` Julia Lawall
2016-04-17 16:02           ` Joe Perches
     [not found]             ` <alpine.DEB.2.02.1604171944500.2004@localhost6.localdomain6>
     [not found]               ` <1460915801.19090.100.camel@perches.com>
     [not found]                 ` <alpine.DEB.2.02.1604172001410.2004@localhost6.localdomain6>
2016-04-19 19:12                   ` coccinelle: bool if (foo) return true; else return false; Joe Perches
2016-04-19 19:15                     ` Julia Lawall
2016-04-20  7:19                       ` Michael Stefaniuc [this message]
2016-04-20  7:25                         ` [Cocci] " Joe Perches
2016-04-17 17:26   ` [PATCH V2] checkpatch: Whine about ACCESS_ONCE Joe Perches

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