linux-kernel - Re: [PATCH] checkpatch.pl: Check for functions without a real prototype

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Message-ID: <4F63CE5A.2090809@nod.at>
Date:	Sat, 17 Mar 2012 00:35:54 +0100
From:	Richard Weinberger <richard@....at>
To:	Joe Perches <joe@...ches.com>
CC:	apw@...onical.com, linux-kernel@...r.kernel.org, hpa@...or.com
Subject: Re: [PATCH] checkpatch.pl: Check for functions without a real prototype

Am 17.03.2012 00:31, schrieb Joe Perches:
> Perhaps this should be:
> 		if ($line =~ /(\b$Type\s+$Ident)\s*\(\s*\)/) {

Makes sense.

>> +			ERROR("FUNCTION_NO_PROTOTYPE",
>> +"Function without a real prototype\n" . $herecurr .
> 
> Sensible, but maybe:
> "Bad function definition - $1() should probably be $1(void)\n"

Too.

>> +"Thou shalt not, in the language of C, under any circumstances, on the
>> +pain of death, declare or define a function with an empty set of
>> +parentheses, for though in the language of C++ it meaneth the same as
>> +(void), in C it meaneth (...) which is of meaningless as there be no
>> +anchor argument by which the types of the varadic arguments can be
>> +expressed, and which misleadeth the compiler into allowing unsavory code
>> +and in some cases generate really ugly stuff for varadic handling.
>> +	-hpa\n");
> 
> Humorous once, painful in twice, annoying after.
> 

It has to be annoying and painful. :-)

Thanks,
//richard


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