linux-kernel - Re: [PATCH] usb: hub: Prevent hub autosuspend if usbcore.autosuspend is -1

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Message-ID: <Pine.LNX.4.44L0.1408041006530.1169-100000@iolanthe.rowland.org>
Date:	Mon, 4 Aug 2014 10:07:21 -0400 (EDT)
From:	Alan Stern <stern@...land.harvard.edu>
To:	Roger Quadros <rogerq@...com>
cc:	gregkh@...uxfoundation.org, <balbi@...com>,
	<ming.lei@...onical.com>, <mwelling@...cinc.com>,
	<stefan@...brechtsmeier.net>, <linux-usb@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>, "[3.8+]" <stable@...r.kernel.org>
Subject: Re: [PATCH] usb: hub: Prevent hub autosuspend if usbcore.autosuspend
 is -1

On Mon, 4 Aug 2014, Roger Quadros wrote:

> If user specifies that USB autosuspend must be disabled by module
> parameter "usbcore.autosuspend=-1" then we must prevent
> autosuspend of USB hub devices as well.
> 
> commit 596d789a211d introduced in v3.8 changed the original behaivour
> and stopped respecting the usbcore.autosuspend parameter for hubs.
> 
> Fixes: 596d789a211d "USB: set hub's default autosuspend delay as 0"
> 
> Cc: [3.8+] <stable@...r.kernel.org>
> Signed-off-by: Roger Quadros <rogerq@...com>

Acked-by: Alan Stern <stern@...land.harvard.edu>

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