linux-kernel - Re: Microblaze linux support

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Message-ID: <20090319105001.GC2579@elte.hu>
Date:	Thu, 19 Mar 2009 11:50:01 +0100
From:	Ingo Molnar <mingo@...e.hu>
To:	Michal Simek <monstr@...str.eu>
Cc:	linux-kernel@...r.kernel.org, john.williams@...alogix.com,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: Microblaze linux support


* Michal Simek <monstr@...str.eu> wrote:

> Hi Ingo,
> > * Michal Simek <monstr@...str.eu> wrote:
> > 
> >> WARNING: externs should be avoided in .c files
> >> #110: FILE: arch/microblaze/kernel/microblaze_ksyms.c:45:
> >> +extern void __umodsi3(void);
> >>
> >> WARNING: EXPORT_SYMBOL(foo); should immediately follow its function/variable
> >> #111: FILE: arch/microblaze/kernel/microblaze_ksyms.c:46:
> >> +EXPORT_SYMBOL(__umodsi3);
> > 
> > externs should be in header files.
> > 
> > The rest indeed looks like false positives. Thanks for addressing 
> > these things so quickly!
> 
> you are welcome - I can quickly test and add all changes to git.
> 
> Is it good style separate extern definition and EXPORT_SYMBOL?
> 
> I have three choices?
> 1. keep extern + EXPORT_SYMBOL below  - current style
> 2. move only extern to header file
> 3. move extern and EXPORT_SYMBOL to header.
> 
> What is preferable way?

Where are the symbols defined - by gcc's library?

	Ingo
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