http://linux-acpi.bkbits.net/linux-acpi-test-2.6.5
len.brown@intel.com|ChangeSet|20040325225325|21169 len.brown

diff -Nru a/drivers/acpi/pci_link.c b/drivers/acpi/pci_link.c
--- a/drivers/acpi/pci_link.c	Fri Mar 26 12:07:38 2004
+++ b/drivers/acpi/pci_link.c	Fri Mar 26 12:07:38 2004
@@ -72,6 +72,7 @@
 	u8			edge_level;		/* All IRQs */
 	u8			active_high_low;	/* All IRQs */
 	u8			setonboot;
+	u8			resource_type;
 	u8			possible_count;
 	u8			possible[ACPI_PCI_LINK_MAX_POSSIBLE];
 };
@@ -123,6 +124,7 @@
 		}
 		link->irq.edge_level = p->edge_level;
 		link->irq.active_high_low = p->active_high_low;
+		link->irq.resource_type = ACPI_RSTYPE_IRQ;
 		break;
 	}
 	case ACPI_RSTYPE_EXT_IRQ:
@@ -143,6 +145,7 @@
 		}
 		link->irq.edge_level = p->edge_level;
 		link->irq.active_high_low = p->active_high_low;
+		link->irq.resource_type = ACPI_RSTYPE_EXT_IRQ;
 		break;
 	}
 	default:
@@ -342,13 +345,18 @@
 		}
 	}
 
+	resource_type = link->irq.resource_type;
+
+	if (resource_type != ACPI_RSTYPE_IRQ &&
+			resource_type != ACPI_RSTYPE_EXT_IRQ){
 	/* If IRQ<=15, first try with a "normal" IRQ descriptor. If that fails, try with
 	 * an extended one */
-	if (irq <= 15) {
-		resource_type = ACPI_RSTYPE_IRQ;
-	} else {
-		resource_type = ACPI_RSTYPE_EXT_IRQ;
-	}
+		if (irq <= 15) {
+			resource_type = ACPI_RSTYPE_IRQ;
+		} else {
+			resource_type = ACPI_RSTYPE_EXT_IRQ;
+		}
+	} 
 
 retry_programming: