diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index 29f5d699fa06dd2a75f53dd10ee8b3ca7a34ecbc..05a84f095fe70c7968b6e0a6f907324a07c5d27a 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -4043,6 +4043,7 @@ phys_addr_t pci_pio_to_address(unsigned long pio)
 
 	return address;
 }
+EXPORT_SYMBOL_GPL(pci_pio_to_address);
 
 unsigned long __weak pci_address_to_pio(phys_addr_t address)
 {