Merge branch 'acpi-pci-hotplug'

* acpi-pci-hotplug:
  ACPI / hotplug / PCI: Avoid parent bus rescans on spurious device checks
  ACPI / hotplug / PCI: Use _OST to notify firmware about notify status
  ACPI / hotplug / PCI: Avoid doing too much for spurious notifies
  ACPI / hotplug / PCI: Don't trim devices before scanning the namespace