linux-kernel - Re: Class device namespaces

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Message-ID: <20090427173021.GA7078@auslistsprd01.us.dell.com>
Date:	Mon, 27 Apr 2009 12:30:21 -0500
From:	Matt Domsch <Matt_Domsch@...l.com>
To:	Jean Delvare <khali@...ux-fr.org>
Cc:	Kay Sievers <kay.sievers@...y.org>,
	Michael E Brown <Michael_E_Brown@...l.com>,
	Greg Kroah-Hartman <gregkh@...e.de>,
	linux-kernel@...r.kernel.org,
	Mauro Carvalho Chehab <mchehab@...radead.org>
Subject: Re: Class device namespaces

On Mon, Apr 27, 2009 at 05:30:05PM +0200, Jean Delvare wrote:
> On Sun, 26 Apr 2009 08:01:22 -0500, Matt Domsch wrote:
> > I'll note there is a second implementation that uses dell_rbu, and
> > that is included in each and every "Dell Update Package" (aka DUP)
> > BIOS update posted on support.dell.com for every Dell PowerEdge server
> > for the past several years.  Because the updater and they BIOS payload
> > are packaged in the same package, a change which would require
> > changing that updater will result in requiring Dell to spin and
> > re-release hundreds of DUPs, which would not go over well...  Thank
> > you for being careful not to change the interface capriciously - it
> > could have a huge impact on us.
> 
> I'll be careful, but you have to admit that duplicating utility code
> like this is poor engineering from Dell :( I don't want to think of the
> mess it will be if you ever have to fix a critical bug in that code.

Yes, this is well-understood, and steps are in process to address this
model.  http://linux.dell.com/firmware-tools is the preferred model,
with split inventory/execution components from firmware payloads.

Thanks,
Matt

-- 
Matt Domsch
Linux Technology Strategist, Dell Office of the CTO
linux.dell.com & www.dell.com/linux
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