linux-kernel - Re: [PATCH] mce: fix warning messages about static struct mce

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Message-ID: <20120117083843.GC13181@elte.hu>
Date:	Tue, 17 Jan 2012 09:38:43 +0100
From:	Ingo Molnar <mingo@...e.hu>
To:	Greg KH <gregkh@...e.de>
Cc:	Linus Torvalds <torvalds@...ux-foundation.org>,
	"Rafael J. Wysocki" <rjw@...k.pl>,
	"Srivatsa S. Bhat" <srivatsa.bhat@...ux.vnet.ibm.com>,
	Sergei Trofimovich <slyich@...il.com>,
	linux-kernel@...r.kernel.org, Kay Sievers <kay.sievers@...y.org>,
	Linux PM mailing list <linux-pm@...r.kernel.org>,
	Tony Luck <tony.luck@...el.com>,
	Borislav Petkov <bp@...64.org>,
	"tglx@...utronix.de" <tglx@...utronix.de>,
	prasad@...ux.vnet.ibm.com, Ming Lei <tom.leiming@...il.com>,
	Djalal Harouni <tixxdz@...ndz.org>,
	Borislav Petkov <borislav.petkov@....com>,
	Hidetoshi Seto <seto.hidetoshi@...fujitsu.com>,
	Andi Kleen <ak@...ux.intel.com>,
	gouders@...bocholt.fh-gelsenkirchen.de,
	Marcos Souza <marcos.mage@...il.com>, justinmattock@...il.com,
	Jeff Chua <jeff.chua.linux@...il.com>
Subject: Re: [PATCH] mce: fix warning messages about static struct mce_device


* Greg KH <gregkh@...e.de> wrote:

> diff --git a/arch/x86/include/asm/mce.h b/arch/x86/include/asm/mce.h
> index f35ce43..6aefb14 100644
> --- a/arch/x86/include/asm/mce.h
> +++ b/arch/x86/include/asm/mce.h
> @@ -151,7 +151,7 @@ static inline void enable_p5_mce(void) {}
>  
>  void mce_setup(struct mce *m);
>  void mce_log(struct mce *m);
> -DECLARE_PER_CPU(struct device, mce_device);
> +extern struct device *mce_device[CONFIG_NR_CPUS];

Minor nit, i don't think we have any other such [CONFIG_NR_CPUS] 
pattern in the kernel.

This should be something like:

  DECLARE_PER_CPU(struct device *, mce_device);

Or the pointer should be attached to the CPU info structure.

Thanks,

	Ingo
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