X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=drivers%2Facpi%2Fmotherboard.c;h=2e17ec75af03e84756689ce8bca915f2b0e3c2d5;hb=97bf2856c6014879bd04983a3e9dfcdac1e7fe85;hp=ec6b7f9ede34d911818075d75eb11f7d95f02b87;hpb=16c70f8c1b54b61c3b951b6fb220df250fe09b32;p=linux-2.6.git

diff --git a/drivers/acpi/motherboard.c b/drivers/acpi/motherboard.c
index ec6b7f9ed..2e17ec75a 100644
--- a/drivers/acpi/motherboard.c
+++ b/drivers/acpi/motherboard.c
@@ -48,6 +48,12 @@ ACPI_MODULE_NAME("acpi_motherboard")
  * the io ports if they really know they can use it, while
  * still preventing hotplug PCI devices from using it.
  */
+
+/*
+ * When CONFIG_PNP is enabled, pnp/system.c binds to PNP0C01
+ * and PNP0C02, redundant with acpi_reserve_io_ranges().
+ * But acpi_reserve_io_ranges() is necessary for !CONFIG_PNP.
+ */
 static acpi_status acpi_reserve_io_ranges(struct acpi_resource *res, void *data)
 {
 	struct resource *requested_res = NULL;