linux-kernel - Re: powernow-k8: section mismatch

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Message-ID: <20100525220433.GB28552@aftab>
Date:	Wed, 26 May 2010 00:04:33 +0200
From:	Borislav Petkov <bp@...64.org>
To:	Stefan Richter <stefanr@...6.in-berlin.de>
Cc:	"cpufreq@...r.kernel.org" <cpufreq@...r.kernel.org>,
	"H. Peter Anvin" <hpa@...or.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: powernow-k8: section mismatch

From: Stefan Richter <stefanr@...6.in-berlin.de>
Date: Tue, May 25, 2010 at 04:10:03PM -0400

> Hi,
> 
> I got the following with current git:
> 
>     WARNING: arch/x86/kernel/cpu/cpufreq/powernow-k8.o(.exit.text+0x1c): Section mismatch in reference from the function cleanup_module() to the variable .cpuinit.data:cpb_nb                      
>     The function __exit cleanup_module() references                                                 
>     a variable __cpuinitdata cpb_nb.                                                                
>     This is often seen when error handling in the exit function                                     
>     uses functionality in the init path.                                                            
>     The fix is often to remove the __cpuinitdata annotation of                                      
>     cpb_nb so it may be used outside an init section.                                               
> 
> Looks like it was introduced by
> "powernow-k8: Add core performance boost support".

Oh yeah, Peter pointed it out to me earlier, we have a fix already:
https://patchwork.kernel.org/patch/102225/

Thanks.

-- 
Regards/Gruss,
Boris.

Operating Systems Research Center
Advanced Micro Devices, Inc.
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