linux-kernel - Re: [PATCH 1/4] ACPI, APEI, GHES, Prevent GHES to be built as module

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Message-ID: <20110621072301.GA3263@one.firstfloor.org>
Date:	Tue, 21 Jun 2011 09:23:01 +0200
From:	Andi Kleen <andi@...stfloor.org>
To:	Huang Ying <ying.huang@...el.com>
Cc:	Len Brown <lenb@...nel.org>, linux-kernel@...r.kernel.org,
	Andi Kleen <andi@...stfloor.org>,
	Tony Luck <tony.luck@...el.com>, linux-acpi@...r.kernel.org,
	mjg59@...f.ucam.org
Subject: Re: [PATCH 1/4] ACPI, APEI, GHES, Prevent GHES to be built as module

On Tue, Jun 21, 2011 at 03:16:24PM +0800, Huang Ying wrote:
> GHES (Generic Hardware Error Source) is used to process hardware error
> notification in firmware first mode.  But because firmware first mode
> can be turned on but can not be turned off, it is unreasonable to
> unload the GHES module with firmware first mode turned on.  To avoid
> confusion, this patch makes GHES can be enable/disable in
> configuration time, but not built as module and unload at run time.

It's better to keep it as a module, but disable unloading.
You can do that with a __module_get(THIS_MODULE) in the init code
when FFM is detected.

-Andi
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