linux-kernel - Re: [PATCH] EDD: Check for correct EDD 3.0 length

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Message-ID: <20120515144945.339e742f@pyramind.ukuu.org.uk>
Date:	Tue, 15 May 2012 14:49:45 +0100
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	Gleb Natapov <gleb@...hat.com>
Cc:	Hannes Reinecke <hare@...e.de>,
	LKML <linux-kernel@...r.kernel.org>,
	"H. Peter Anvin" <hpa@...ux.intel.com>
Subject: Re: [PATCH] EDD: Check for correct EDD 3.0 length

> I do not see support for other spec to be important, but you are welcome
> to write support for it if you need it. The only way I see to check what
> spec edd info corresponds to is to calculate checksum according to both
> specs and see which one succeeds.

No it doesn't work like that. This is a regression for existing working
systems. It needs to be reverted or fixed. If it was a new feature you'd
have a point - but it isn't. You've broken stuff, undo the breakage.

Alan
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