linux-kernel - Re: [PATCH 1/1] xhci: clear root port wake on bits if controller isn't wake-up capable

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Message-ID: <20140611152604.GA27630@kroah.com>
Date:	Wed, 11 Jun 2014 08:26:04 -0700
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	Lu Baolu <baolu.lu@...ux.intel.com>
Cc:	Mathias Nyman <mathias.nyman@...el.com>, linux-usb@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/1] xhci: clear root port wake on bits if controller
 isn't wake-up capable

On Wed, Jun 11, 2014 at 06:25:20AM +0800, Lu Baolu wrote:
> When the xHCI PCI host is suspended, if do_wakeup is false in xhci_pci_suspend,
> xhci_bus_suspend needs to clear all root port wake on bits. Otherwise some Intel
> platform may get a spurious wakeup, even if PCI PME# is disabled.
> 
> http://marc.info/?l=linux-usb&m=138194006009255&w=2
> 
> Signed-off-by: Lu Baolu <baolu.lu@...ux.intel.com>
> ---
>  drivers/usb/host/xhci-hub.c | 5 ++++-
>  1 file changed, 4 insertions(+), 1 deletion(-)

Should this also be a stable kernel patch?  If so, how far back?

thanks,

greg k-h
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