···4848 * the io ports if they really know they can use it, while4949 * still preventing hotplug PCI devices from using it.5050 */5151+5252+/*5353+ * When CONFIG_PNP is enabled, pnp/system.c binds to PNP0C015454+ * and PNP0C02, redundant with acpi_reserve_io_ranges().5555+ * But acpi_reserve_io_ranges() is necessary for !CONFIG_PNP.5656+ */5157static acpi_status acpi_reserve_io_ranges(struct acpi_resource *res, void *data)5258{5359 struct resource *requested_res = NULL;