On Tue, Feb 13, 2018 at 5:32 PM, Mika Westerberg
<mika.westerberg@xxxxxxxxxxxxxxx> wrote:
> Following PCIehp mark the unplugged PCI devices disconnected. This makes
> sure PCI core code leaves the now missing hardware registers alone.
>
> Signed-off-by: Mika Westerberg <mika.westerberg@xxxxxxxxxxxxxxx>
Reviewed-by: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx>
> ---
> drivers/pci/hotplug/acpiphp_glue.c | 5 +++++
> 1 file changed, 5 insertions(+)
>
> diff --git a/drivers/pci/hotplug/acpiphp_glue.c b/drivers/pci/hotplug/acpiphp_glue.c
> index 5efa21cdddc9..0aef35ee665a 100644
> --- a/drivers/pci/hotplug/acpiphp_glue.c
> +++ b/drivers/pci/hotplug/acpiphp_glue.c
> @@ -651,6 +651,11 @@ static void trim_stale_devices(struct pci_dev *dev)
> alive = pci_device_is_present(dev);
>
> if (!alive) {
> + pci_dev_set_disconnected(dev, NULL);
> + if (pci_has_subordinate(dev))
> + pci_walk_bus(dev->subordinate, pci_dev_set_disconnected,
> + NULL);
> +
> pci_stop_and_remove_bus_device(dev);
> if (adev)
> acpi_bus_trim(adev);
> --
> 2.15.1
>
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