On Mon, Nov 17, 2014 at 02:57:05PM +0000, David Laight wrote:
> From: Felipe Balbi
> >
> > On Fri, Nov 14, 2014 at 07:23:52PM +0200, Mathias Nyman wrote:
> > > From: Lu Baolu <baolu.lu@xxxxxxxxxxxxxxx>
> > >
> > > When system is being suspended, if host device is not allowed to do wakeup,
> > > xhci_suspend() needs to clear all root port wake on bits. Otherwise, some
> > > platforms may generate spurious wakeup, even if PCI PME# is disabled.
> > >
> > > The initial commit ff8cbf250b44 ("xhci: clear root port wake on bits"),
> > > which also got into stable, turned out to not work correctly and had to
> > > be reverted, and is now rewritten.
> > >
> > > Cc: stable <stable@xxxxxxxxxxxxxxx>
> >
> > how far back ? Apparently, also, 2.6.37+
>
> Isn't xhci completely broken before some relatively recent kernel?
Really? It actually seems to work _better_ for most people on older
kernels...
> ISTR a massive USB/xhci patch that a lot of things depend on.
> Is it worth backporting to kernels without that patch?
What exact patch are you referring to?
greg k-h
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