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

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Message-ID: <20140804154544.GA23378@sysresccd>
Date:	Mon, 4 Aug 2014 10:45:44 -0500
From:	Michael Welling <mwelling@...cinc.com>
To:	Roger Quadros <rogerq@...com>
Cc:	gregkh@...uxfoundation.org, stern@...land.harvard.edu,
	balbi@...com, ming.lei@...onical.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, Aug 04, 2014 at 12:44:46PM +0300, 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>

Tested-by: Michael Welling <mwelling@...cinc.com>
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