X-Git-Url: http://git.cascardo.info/?a=blobdiff_plain;f=arch%2Fx86%2Fpci%2Firq.c;h=eb500c2592ad8ab4ced728f676d9102411fa3782;hb=9eabc99a635a77cbf0948ce17d3cbc2b51680d4a;hp=84112f55dd7a95d83232d9416b7e9196a55dee30;hpb=b5f3c61d06165c3dddddbc30772f079c2c8589ca;p=cascardo%2Flinux.git

diff --git a/arch/x86/pci/irq.c b/arch/x86/pci/irq.c
index 84112f55dd7a..eb500c2592ad 100644
--- a/arch/x86/pci/irq.c
+++ b/arch/x86/pci/irq.c
@@ -26,6 +26,7 @@ static int acer_tm360_irqrouting;
 static struct irq_routing_table *pirq_table;
 
 static int pirq_enable_irq(struct pci_dev *dev);
+static void pirq_disable_irq(struct pci_dev *dev);
 
 /*
  * Never use: 0, 1, 2 (timer, keyboard, and cascade)
@@ -53,7 +54,7 @@ struct irq_router_handler {
 };
 
 int (*pcibios_enable_irq)(struct pci_dev *dev) = pirq_enable_irq;
-void (*pcibios_disable_irq)(struct pci_dev *dev) = NULL;
+void (*pcibios_disable_irq)(struct pci_dev *dev) = pirq_disable_irq;
 
 /*
  *  Check passed address for the PCI IRQ Routing Table signature
@@ -1186,7 +1187,7 @@ void pcibios_penalize_isa_irq(int irq, int active)
 
 static int pirq_enable_irq(struct pci_dev *dev)
 {
-	u8 pin;
+	u8 pin = 0;
 
 	pci_read_config_byte(dev, PCI_INTERRUPT_PIN, &pin);
 	if (pin && !pcibios_lookup_irq(dev, 1)) {
@@ -1227,8 +1228,6 @@ static int pirq_enable_irq(struct pci_dev *dev)
 			}
 			dev = temp_dev;
 			if (irq >= 0) {
-				io_apic_set_pci_routing(&dev->dev, irq,
-							 &irq_attr);
 				dev->irq = irq;
 				dev_info(&dev->dev, "PCI->APIC IRQ transform: "
 					 "INT %c -> IRQ %d\n", 'A' + pin - 1, irq);
@@ -1254,3 +1253,12 @@ static int pirq_enable_irq(struct pci_dev *dev)
 	}
 	return 0;
 }
+
+static void pirq_disable_irq(struct pci_dev *dev)
+{
+	if (io_apic_assign_pci_irqs && !mp_should_keep_irq(&dev->dev) &&
+	    dev->irq) {
+		mp_unmap_irq(dev->irq);
+		dev->irq = 0;
+	}
+}