cpu hotplug: topology: remove topology_dev_map

By previous cpu hotplug notifier change, we don't need to track topology_dev
existence for each cpu by topology_dev_map.
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: Gautham R Shenoy <ego@in.ibm.com>
Cc: Oleg Nesterov <oleg@tv-sign.ru>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

drivers/base/topology.c

@@ -94,27 +94,18 @@ static struct attribute_group topology_attr_group = {
 	.name = "topology"
 };
 
-static cpumask_t topology_dev_map = CPU_MASK_NONE;
-
 /* Add/Remove cpu_topology interface for CPU device */
 static int __cpuinit topology_add_dev(unsigned int cpu)
 {
-	int rc;
 	struct sys_device *sys_dev = get_cpu_sysdev(cpu);
 
-	rc = sysfs_create_group(&sys_dev->kobj, &topology_attr_group);
-	if (!rc)
-		cpu_set(cpu, topology_dev_map);
-	return rc;
+	return sysfs_create_group(&sys_dev->kobj, &topology_attr_group);
 }
 
 static void __cpuinit topology_remove_dev(unsigned int cpu)
 {
 	struct sys_device *sys_dev = get_cpu_sysdev(cpu);
 
-	if (!cpu_isset(cpu, topology_dev_map))
-		return;
-	cpu_clear(cpu, topology_dev_map);
 	sysfs_remove_group(&sys_dev->kobj, &topology_attr_group);
 }