PCI: rpaphp: Remove global num_slots variable

Cleanup cruft: remove the global "num_slots" variable; 
although scattered across multiple files, it is used only 
once, in a debug statement.
Signed-off-by: NLinas Vepstas <linas@austin.ibm.com>
Cc: John Rose <johnrose@austin.ibm.com>
Signed-off-by: NKristen Carlson Accardi <kristen.c.accardi@intel.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

drivers/pci/hotplug/rpaphp.h

@@ -83,7 +83,6 @@ struct slot {
 
 extern struct hotplug_slot_ops rpaphp_hotplug_slot_ops;
 extern struct list_head rpaphp_slot_head;
-extern int num_slots;
 
 /* function prototypes */
 

drivers/pci/hotplug/rpaphp_core.c

@@ -41,7 +41,6 @@
 int debug;
 static struct semaphore rpaphp_sem;
 LIST_HEAD(rpaphp_slot_head);
-int num_slots;
 
 #define DRIVER_VERSION	"0.1"
 #define DRIVER_AUTHOR	"Linda Xie <lxie@us.ibm.com>"
@@ -325,8 +324,7 @@ int rpaphp_add_slot(struct device_node *dn)
 		name += strlen(name) + 1;
 		type += strlen(type) + 1;
 	}
-	dbg("%s - Exit: num_slots=%d rc[%d]\n",
-	    __FUNCTION__, num_slots, retval);
+	dbg("%s - Exit: rc[%d]\n", __FUNCTION__, retval);
 	return retval;
 }
 

drivers/pci/hotplug/rpaphp_slot.c

@@ -140,8 +140,6 @@ int rpaphp_deregister_slot(struct slot *slot)
 	retval = pci_hp_deregister(php_slot);
 	if (retval)
 		err("Problem unregistering a slot %s\n", slot->name);
-	else
-		num_slots--;
 
 	dbg("%s - Exit: rc[%d]\n", __FUNCTION__, retval);
 	return retval;
@@ -181,7 +179,6 @@ int rpaphp_register_slot(struct slot *slot)
 	list_add(&slot->rpaphp_slot_list, &rpaphp_slot_head);
 	info("Slot [%s](PCI location=%s) registered\n", slot->name,
 			slot->location);
-	num_slots++;
 	return 0;
 
 sysfs_fail: