linux-kernel - Re: [RFC][PATCH -mm 3/3] PM: Disable _request

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Message-Id: <A19B5FA5-0DF4-4B8D-957C-3D6FB3485C30@cam.ac.uk>
Date:	Mon, 28 May 2007 14:10:52 +0100
From:	Michael-Luke Jones <mlj28@....ac.uk>
To:	Pavel Machek <pavel@....cz>
Cc:	Kay Sievers <kay.sievers@...y.org>,
	"Rafael J. Wysocki" <rjw@...k.pl>,
	Matthew Garrett <mjg59@...f.ucam.org>,
	pm list <linux-pm@...ts.linux-foundation.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Nigel Cunningham <nigel@...el.suspend2.net>,
	Alan Stern <stern@...land.harvard.edu>
Subject: Re: [RFC][PATCH -mm 3/3] PM: Disable _request_firmware before hibernation/suspend

On 28 May 2007, at 14:00, Pavel Machek wrote:

> I'm too lazy to figure out how it currently works, but
> I'll just state it is not my fault

Figuring out how a userspace/kernelspace interface works should not  
rely on having to read kernelspace code. Unfortunately, in the case  
of hotplug / uevents, there is no such documentation. Thus, what  
kernelspace / userspace interactions actually are and what they  
should be is unclear, leading to confusion over corner cases, such as  
this one.

Michael-Luke Jones
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