linux-kernel - Re: Section mismatch on latest git

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Date:	Thu, 29 May 2008 21:38:45 -0700
From:	Randy Dunlap <randy.dunlap@...cle.com>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	"Fabio Comolli" <fabio.comolli@...il.com>,
	"Linux Kernel Mailing List" <linux-kernel@...r.kernel.org>,
	sam@...nborg.org
Subject: Re: Section mismatch on latest git

On Thu, 29 May 2008 00:01:28 -0700 Andrew Morton wrote:

> On Mon, 26 May 2008 10:03:21 +0200 "Fabio Comolli" <fabio.comolli@...il.com> wrote:
> 
> > Hi.
> > I don't know it it has been reported already:
> > 
> > WARNING: vmlinux.o(.text+0x114bb): Section mismatch in reference from
> > the function nopat() to the function .cpuinit.text:pat_disable()
> > The function nopat() references
> > the function __cpuinit pat_disable().
> > This is often because nopat lacks a __cpuinit
> > annotation or the annotation of pat_disable is wrong.
> > 
> > Config is in attachment.
> > 
> 
> This should fix it:
> 
> --- a/arch/x86/mm/pat.c~arch-x86-mm-patc-nopat-should-be-__init
> +++ a/arch/x86/mm/pat.c
> @@ -34,7 +34,7 @@ void __cpuinit pat_disable(char *reason)
>  	printk(KERN_INFO "%s\n", reason);
>  }
>  
> -static int nopat(char *str)
> +static int __init nopat(char *str)
>  {
>  	pat_disable("PAT support disabled.");
>  	return 0;
> _
> 
> 
> It turns out that this was harmless.  However it might not have been -
> I think that adding the ability to suppress all these warnings was a
> mistake.  

It certainly has caused me to stop looking for/at them.
More a sin of omission than one of commission.

---
~Randy
"He closes his eyes and drops the goggles.  You can't get hurt
by looking at a bitmap.  Or can you?"
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