Messages in this thread | | | Date | Thu, 12 Jun 2014 09:18:18 +0800 | From | baolu <> | Subject | Re: [PATCH 1/1] xhci: clear root port wake on bits if controller isn't wake-up capable |
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On 06/11/2014 11:26 PM, Greg Kroah-Hartman wrote: > 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@linux.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? Yes.
This patch should be back-ported to kernels as old as 2.6.37, that contains the commit 9777e3ce907d4cb5a513902a87ecd03b52499569 "USB: xHCI: bus power management implementation".
Thanks, -baolu > > thanks, > > greg k-h > -- > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/ > >
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