driver core: remove subsystem_init()

There is only one user of it, and it is only a wrapper for kset_init().
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Documentation/kobject.txt

@@ -238,7 +238,6 @@ kobj_set_kset_s(obj,subsys)
 - Assumes that obj->kobj exists, and is a struct kobject.
 - Sets the kset of that kobject to the kset <subsys>.
 
-void subsystem_init(struct kset *s);
 int subsystem_register(struct kset *s);
 void subsystem_unregister(struct kset *s);
 

drivers/base/class.c

@@ -861,7 +861,7 @@ int __init classes_init(void)
 
 	/* ick, this is ugly, the things we go through to keep from showing up
 	 * in sysfs... */
-	subsystem_init(&class_obj_subsys);
+	kset_init(&class_obj_subsys);
 	if (!class_obj_subsys.kobj.parent)
 		class_obj_subsys.kobj.parent = &class_obj_subsys.kobj;
 	return 0;

include/linux/kobject.h

@@ -217,7 +217,6 @@ extern struct kset hypervisor_subsys;
 #define kobj_set_kset_s(obj,subsys) \
 	(obj)->kobj.kset = &(subsys)
 
-extern void subsystem_init(struct kset *);
 extern int __must_check subsystem_register(struct kset *);
 extern void subsystem_unregister(struct kset *);
 

lib/kobject.c

@@ -617,11 +617,6 @@ struct kobject * kset_find_obj(struct kset * kset, const char * name)
 	return ret;
 }
 
-void subsystem_init(struct kset *s)
-{
-	kset_init(s);
-}
-
 int subsystem_register(struct kset *s)
 {
 	return kset_register(s);