linux-kernel - Re: pcmcia resume 60 second hang. Re: [patch 00/69] -stable review

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Message-Id: <200705291416.42488.rjw@sisk.pl>
Date:	Tue, 29 May 2007 14:16:40 +0200
From:	"Rafael J. Wysocki" <rjw@...k.pl>
To:	Michael-Luke Jones <mike.luke.jones@...il.com>
Cc:	Kay Sievers <kay.sievers@...y.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Pavel Machek <pavel@....cz>,
	Romano Giannetti <romanol@...omillas.es>,
	Chris Wright <chrisw@...s-sol.org>,
	Chuck Ebbert <cebbert@...hat.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	stable@...nel.org, Justin Forbes <jmforbes@...uxtx.org>,
	Zwane Mwaikambo <zwane@....linux.org.uk>,
	Theodore Ts'o <tytso@....edu>,
	Randy Dunlap <rdunlap@...otime.net>,
	Dave Jones <davej@...hat.com>,
	Chuck Wolber <chuckw@...ntumlinux.com>,
	Chris Wedgwood <reviews@...cw.f00f.org>,
	Michael Krufky <mkrufky@...uxtv.org>,
	akpm@...ux-foundation.org, alan@...rguk.ukuu.org.uk
Subject: Re: pcmcia resume 60 second hang. Re: [patch 00/69] -stable review

On Tuesday, 29 May 2007 14:00, Michael-Luke Jones wrote:
> Rafael J. Wysocki wrote:
> > On Tuesday, 29 May 2007 08:55, Kay Sievers wrote:
> >> The shiny userspace firmware loading causes problems since it exists,
> >> every second box has problems with it, in all sorts of situations. If
> >> people are still sold to the idea of userspace firmware loading, why
> >> don't we keep the data in the driver, instead of immediately
> >> discarding it after the first upload? Not to waste a few hundred
> >> kilobytes? That doesn't sound like a convincing deal, after all the
> >> years people try to work around the issues it causes.
> > 
> > Agreed.
> > 
> > Rafael
> 
> Rather than most drivers being told to make this step, can this be added 
> to the firmware_class such that firmware objects are cached in RAM and 
> subsequent calls to request_firmware() don't have to query userspace.
> 
> This seems the least intrusive solution to this problem.

Agreed again. :-)

Greetings,
Rafael
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