Re: [PATCH] PCI / hotplug: Propagate the "ignore hotplug" setting to parent

From: Rafael J. Wysocki
Date: Tue Apr 14 2015 - 20:39:04 EST

On Tuesday, April 14, 2015 12:28:12 PM Henrique de Moraes Holschuh wrote:
> On Mon, Apr 13, 2015, at 11:23, Rafael J. Wysocki wrote:
> > From: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx>
> >
> > Refine the mechanism introduced by commit f244d8b623da (ACPIPHP / radeon
> > / nouveau: Fix VGA switcheroo problem related to hotplug) to propagate
> > the ignore_hotplug setting of the device to its parent bridge in case
> > hotplug notifications related to the graphics adapter switching are
> > given for the bridge rather than for the device itself (the need to
> > be ignored in both cases).
> I do apologise if this is a stupid question, but is there any chance the
> bridge will be connected to other devices that do require hotplug handling,
> and not just to the GPU?

The bridge is actually a downstream PCIe port holding the GPU, so no. :-)


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