diff --git a/sys/dev/pci/pci_host_generic.h b/sys/dev/pci/pci_host_generic.h
--- a/sys/dev/pci/pci_host_generic.h
+++ b/sys/dev/pci/pci_host_generic.h
@@ -97,5 +97,6 @@
     int *, rman_res_t, rman_res_t, rman_res_t, u_int);
 int pci_host_generic_core_release_resource(device_t, device_t,
     struct resource *);
+int generic_pcie_read_ivar(device_t, device_t, int, uintptr_t *);
 
 #endif /* __PCI_HOST_GENERIC_H_ */
diff --git a/sys/dev/pci/pci_host_generic.c b/sys/dev/pci/pci_host_generic.c
--- a/sys/dev/pci/pci_host_generic.c
+++ b/sys/dev/pci/pci_host_generic.c
@@ -67,8 +67,6 @@
 static void generic_pcie_write_config(device_t dev, u_int bus, u_int slot,
     u_int func, u_int reg, uint32_t val, int bytes);
 static int generic_pcie_maxslots(device_t dev);
-static int generic_pcie_read_ivar(device_t dev, device_t child, int index,
-    uintptr_t *result);
 static int generic_pcie_write_ivar(device_t dev, device_t child, int index,
     uintptr_t value);
 
@@ -362,7 +360,7 @@
 	return (31); /* max slots per bus acc. to standard */
 }
 
-static int
+int
 generic_pcie_read_ivar(device_t dev, device_t child, int index,
     uintptr_t *result)
 {