linux-kernel - Re: [PATCH] [Coding Style]: fs/ext{3,4}/ext{3,4}

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Message-ID: <477F0C2A.3070301@gmail.com>
Date:	Sat, 05 Jan 2008 07:48:42 +0300
From:	Dmitri Vorobiev <dmitri.vorobiev@...il.com>
To:	Richard Knutsson <ricknu-0@...dent.ltu.se>,
	Mathieu Segaud <mathieu.segaud@...ala.cx>,
	akpm@...ux-foundation.org, linux-ext4@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] [Coding Style]: fs/ext{3,4}/ext{3,4}_jbd{,2}.c

Andreas Dilger пишет:
> On Jan 04, 2008  14:41 +0100, Richard Knutsson wrote:
>>>  @@ -54,6 +54,6 @@ int __ext4_journal_dirty_metadata(const char *where,
>>>  {
>>>  	int err = jbd2_journal_dirty_metadata(handle, bh);
>>>  	if (err)
>>> -		ext4_journal_abort_handle(where, __FUNCTION__, bh, handle,err);
>>> +		ext4_journal_abort_handle(where, __FUNCTION__, bh, handle, err);
>>>  	return err;
>>>  }
>> What about changing the __FUNCTION__ to __func__, while you are at it?
> 
> What's wrong with __FUNCTION__?  I thought that was ANSI C?

No, it was not. The ANSI C 1990 Standard defines the following so-called
"predefined macros": __LINE__, __FILE__, __DATE__, __TIME__, and __STDC__.
The ISO/IEC 9899 Standard commonly referred to as the C99, defines a few
additional predefined macros, as well as an additional predefined
identifier __func__. For more information please refer to the ISO/IEC 9899
document itself, which is freely available for download at the time of
me writing this.

Although seemingly "natural", the __FUNCTION__ macro has never been part
of the C Standard.

Dmitri

> 
> Cheers, Andreas
> --
> Andreas Dilger
> Sr. Staff Engineer, Lustre Group
> Sun Microsystems of Canada, Inc.
> 
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