linux-kernel - Re: [PATCH 38/88] asus-laptop: Do not call HWRS on init

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Date:	Tue, 19 Mar 2013 02:49:13 +0000
From:	Ben Hutchings <ben@...adent.org.uk>
To:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:	linux-kernel@...r.kernel.org, stable@...r.kernel.org,
	kernel-team@...ts.ubuntu.com,
	Corentin Chary <corentin.chary@...il.com>,
	Matthew Garrett <matthew.garrett@...ula.com>,
	Luis Henriques <luis.henriques@...onical.com>
Subject: Re: [PATCH 38/88] asus-laptop: Do not call HWRS on init

On Thu, 2013-03-14 at 10:35 +0000, Luis Henriques wrote:
> 3.5.7.8 -stable review patch.  If anyone has any objections, please let me know.
> 
> ------------------
> 
> From: Ben Hutchings <ben@...adent.org.uk>
> 
> commit cb7da022450cdaaebd33078b6b32fb7dd2aaf6db upstream.
> 
> Since commit 8871e99f89b7 ('asus-laptop: HRWS/HWRS typo'), module
> initialisation is very slow on the Asus UL30A.  The HWRS method takes
> about 12 seconds to run, and subsequent initialisation also seems to
> be delayed.  Since we don't really need the result, don't bother
> calling it on init.  Those who are curious can still get the result
> through the 'infos' device attribute.
> 
> Update the comment about HWRS in show_infos().
> 
> Reported-by: ryan <draziw+deb@...il.com>
> References: http://bugs.debian.org/692436
> Signed-off-by: Ben Hutchings <ben@...adent.org.uk>
> Signed-off-by: Corentin Chary <corentin.chary@...il.com>
> Signed-off-by: Matthew Garrett <matthew.garrett@...ula.com>
> Signed-off-by: Luis Henriques <luis.henriques@...onical.com>
[...]

Ironically I forgot to cc:stable on this one.  Please add it to 3.0.y
and 3.4.y, which also got backports of commit 8871e99f89b7.

Ben.

-- 
Ben Hutchings
When you say `I wrote a program that crashed Windows', people just stare ...
and say `Hey, I got those with the system, *for free*'. - Linus Torvalds

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