linux-kernel - Re: Check for BIOS bugs - Original Subject: Re: [PATCH 23/70] ACPICA: Workaround for reversed

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Message-ID: <20080707111207.GH5643@ucw.cz>
Date:	Mon, 7 Jul 2008 13:12:08 +0200
From:	Pavel Machek <pavel@...e.cz>
To:	Thomas Renninger <trenn@...e.de>
Cc:	Len Brown <lenb@...nel.org>, linux-acpi@...r.kernel.org,
	Bob Moore <robert.moore@...el.com>,
	Lin Ming <ming.m.lin@...el.com>,
	Len Brown <len.brown@...el.com>,
	Bjorn Helgaas <bjorn.helgaas@...com>,
	Huang Cheng <cheng.huang@...el.com>,
	firmwarekit-discuss@...host.org,
	Arjan van de Ven <arjan@...ux.intel.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: Check for BIOS bugs - Original Subject: Re: [PATCH 23/70] ACPICA: Workaround for reversed _PRT entries from BIOS

Hi!

> > Some BIOSs erroneously reverse the _PRT SourceName and the
> > SourceIndex.  Detect and repair this problem. MS ACPI also allows
> > and repairs this problem, thus ACPICA must also.
> 
> It would be great to have an interface to report this as a BIOS defect.
> 
> Something like:
> 
> FIRMWARE_BUG_ON(FIRM_WARN, "erroneously reversed the _PRT source_name", ACPI_ 
> Bug);
> 
> FIRMWARE_BUG_ON(severity, description, component);

Yes, please.

I'd also like HARDWARE_BUG_ON(), with similar usage.

With all the preload-linux-on-foo project, we have some chance to make
BIOS vendors fix their stuff if we can easily diagnose errors in
there.

-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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