Message-ID: <4A6538EE.6000903@jp.fujitsu.com>
Date: Tue, 21 Jul 2009 12:41:34 +0900
From: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com>
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To: "H. Peter Anvin" <hpa@zytor.com>
CC: Andi Kleen <andi@firstfloor.org>, Doug Thompson <norsk5@yahoo.com>,
       Borislav Petkov <borislav.petkov@amd.com>, mingo@elte.hu,
       tglx@linutronix.de, aris@redhat.com, linux-kernel@vger.kernel.org,
       x86@kernel.org
Subject: Re: [PATCH 07/14] mce3: pass mce info to EDAC for decoding
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H. Peter Anvin wrote:
>  If you want modules to change the behavior, you're talking about a
> *dynamic* change -- the call will point to different things at different
> points in time -- so you need another mechanism, i.e. function pointers.

Just FYI, machine check handler on ia64 has such function pointer.

[arch/ia64/kernel/mca.c]
    826 /* Function pointer for extra MCA recovery */
    827 int (*ia64_mca_ucmc_extension)
    828         (void*,struct ia64_sal_os_state*)
    829         = NULL;


Thanks,
H.Seto

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