From mboxrd@z Thu Jan  1 00:00:00 1970
From: Andi Kleen <andi@firstfloor.org>
Subject: Re: [PATCH] ACPI: create "processor.bm_check_disable" boot param
Date: Tue, 27 Jul 2010 13:28:41 +0200
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To: Len Brown <lenb@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>, Matthew Garrett <mjg59@srcf.ucam.org>, "Yu, Luming" <luming.yu@intel.com>, Philip Langdale <philipl@overt.org>, Jeff Garrett <jeff@jgarrett.org>, Linux Kernel Mailing List <linux-kernel@vger.kernel.org>, "linux-acpi@vger.kernel.org" <linux-acpi@vger.kernel.org>, "venki@google.com" <venki@google.com>
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> > This needs to be also documented in Documentation/kernel-parameters.txt
> 
> I thought about that and decided against it.
> While we do document some driver specific modparams
> in kernel-parameters.txt, I do not expect this one to
> be used that often -- mostly for diagnosis of BIOS bugs.
> I know of two machines that need it,
> and both of those machines have a BIOS update
> or a BIOS update in progress that make it unnecessary.

I think even obscure parameters should be documented.

-Andi

-- 
ak@linux.intel.com -- Speaking for myself only.