linux-kernel - Re: [PATCH 1/2] dell-wmi: Check if Dell WMI descriptor structure is valid

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Message-Id: <201512281508.20683@pali>
Date:	Mon, 28 Dec 2015 15:08:20 +0100
From:	Pali Rohár <pali.rohar@...il.com>
To:	Michał Kępień <kernel@...pniu.pl>
Cc:	Matthew Garrett <mjg59@...f.ucam.org>,
	Darren Hart <dvhart@...radead.org>,
	Gabriele Mazzotta <gabriele.mzt@...il.com>,
	Andy Lutomirski <luto@...nel.org>,
	platform-driver-x86@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/2] dell-wmi: Check if Dell WMI descriptor structure is valid

On Monday 28 December 2015 14:37:07 Michał Kępień wrote:
> > According to Dell WMI document mentioned in ML dicussion archived
> > at http://www.spinics.net/lists/platform-driver-x86/msg07220.html
> > OS should check Dell WMI descriptor structure.
> 
> "Should" or "can"?  I skimmed through the ACPI-WMI PDF and Mario's
> message again and I couldn't find any explicit statement urging the
> reader to check the structure in question before doing anything else.

That's questionable... In "Design flow" is first point that WMI 
descriptor check.

-- 
Pali Rohár
pali.rohar@...il.com

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