PCI: rpadlpar: Make functions static

The sparse tool report build warnings as follows:

  drivers/pci/hotplug/rpadlpar_core.c:355:5: warning: symbol 'dlpar_remove_pci_slot' was not declared. Should it be static?
  drivers/pci/hotplug/rpadlpar_core.c:461:12: warning: symbol 'rpadlpar_io_init' was not declared. Should it be static?
  drivers/pci/hotplug/rpadlpar_core.c:473:6: warning: symbol 'rpadlpar_io_exit' was not declared. Should it be static?

Those functions are not used outside of this file, so mark them static.

Also mark rpadlpar_io_exit() as __exit.

Link: https://lore.kernel.org/r/[email protected]
Reported-by: Hulk Robot <[email protected]>
Signed-off-by: Wei Yongjun <[email protected]>
Signed-off-by: Bjorn Helgaas <[email protected]>

Author: Wei Yongjun

drivers/pci/hotplug/rpadlpar_core.c

@@ -352,7 +352,7 @@ static int dlpar_remove_vio_slot(char *drc_name, struct device_node *dn)
  * -ENODEV		Not a valid drc_name
  * -EIO			Internal PCI Error
  */
-int dlpar_remove_pci_slot(char *drc_name, struct device_node *dn)
+static int dlpar_remove_pci_slot(char *drc_name, struct device_node *dn)
 {
 	struct pci_bus *bus;
 	struct slot *slot;
@@ -458,7 +458,7 @@ static inline int is_dlpar_capable(void)
 	return (int) (rc != RTAS_UNKNOWN_SERVICE);
 }
 
-int __init rpadlpar_io_init(void)
+static int __init rpadlpar_io_init(void)
 {
 
 	if (!is_dlpar_capable()) {
@@ -470,7 +470,7 @@ int __init rpadlpar_io_init(void)
 	return dlpar_sysfs_init();
 }
 
-void rpadlpar_io_exit(void)
+static void __exit rpadlpar_io_exit(void)
 {
 	dlpar_sysfs_exit();
 }