linux-kernel - Re: [GIT *] Allow request_firmware() to be satisfied from in-kernel, use it in more drivers.

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Date:	Tue, 15 Jul 2008 14:44:46 -0400
From:	Jeff Garzik <jeff@...zik.org>
To:	Linus Torvalds <torvalds@...ux-foundation.org>
CC:	david@...g.hm, Arjan van de Ven <arjan@...radead.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	David Woodhouse <dwmw2@...radead.org>,
	alan@...rguk.ukuu.org.uk, linux-kernel@...r.kernel.org
Subject: Re: [GIT *] Allow request_firmware() to be satisfied from in-kernel,
 use it in more drivers.

Linus Torvalds wrote:
> 
> On Tue, 15 Jul 2008, Jeff Garzik wrote:
>> Which is why 'make modules_install' installs the firmware, or at least it did
>> before David W pushed upstream.
> 
> So you're literally just about making this be "make modules_install" 
> rather than "make firmware_install"
> 
> Ok. Are you going to be happy if "make modules_install" just copies the 
> firmware files of the affected modules too?

Re-read the above, and what you snipped.  My statement was

* upstream _already_ does this (installs firmware via modules_install)

* it is a good thing, because it means existing build scripts and 
processes will Do The Right Thing and produce a working driver

* thus eliminating the most common problem likely to be encountered

That does not eliminate all problems, because build processes still have 
hardcoded assumptions about outputs.

Restoring firmware-in-module ability closes the last logical hole, last 
fundamental flaw in the scheme, by permitting distros to reproduce 
precisely what they built in 2.6.26.

All of the regressions examples I am citing are cured by 
firmware-in-module, because they are all examples of problems that occur 
when you remove the ability to reproduce the same functional pieces as 
2.6.26.

	Jeff



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