diff --git a/drivers/pci/setup-irq.c b/drivers/pci/setup-irq.c
index 69e3b56c32a43e79f50bf88ec832c67a9ee282db..86106c44ce94547422647d4fa78946d147e24fa5 100644
--- a/drivers/pci/setup-irq.c
+++ b/drivers/pci/setup-irq.c
@@ -17,12 +17,6 @@
 #include <linux/cache.h>
 #include "pci.h"
 
-void __weak pcibios_update_irq(struct pci_dev *dev, int irq)
-{
-	dev_dbg(&dev->dev, "assigning IRQ %02d\n", irq);
-	pci_write_config_byte(dev, PCI_INTERRUPT_LINE, irq);
-}
-
 void pci_assign_irq(struct pci_dev *dev)
 {
 	u8 pin;
@@ -65,5 +59,5 @@ void pci_assign_irq(struct pci_dev *dev)
 
 	/* Always tell the device, so the driver knows what is
 	   the real IRQ to use; the device does not use it. */
-	pcibios_update_irq(dev, irq);
+	pci_write_config_byte(dev, PCI_INTERRUPT_LINE, irq);
 }
diff --git a/include/linux/pci.h b/include/linux/pci.h
index 69034ab8a68eb36da216a93728cd96c648c69c5d..a9e8d2f3bd919f80804b7439189a5f411b760363 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -844,7 +844,6 @@ char *pcibios_setup(char *str);
 resource_size_t pcibios_align_resource(void *, const struct resource *,
 				resource_size_t,
 				resource_size_t);
-void pcibios_update_irq(struct pci_dev *, int irq);
 
 /* Weak but can be overriden by arch */
 void pci_fixup_cardbus(struct pci_bus *);