remove "struct subsystem" as it is no longer needed
We need to work on cleaning up the relationship between kobjects, ksets and
ktypes. The removal of 'struct subsystem' is the first step of this,
especially as it is not really needed at all.
Thanks to Kay for fixing the bugs in this patch.
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/drivers/base/base.h b/drivers/base/base.h
index d597f26..5512d84 100644
--- a/drivers/base/base.h
+++ b/drivers/base/base.h
@@ -45,3 +45,5 @@
extern char *make_class_name(const char *name, struct kobject *kobj);
extern void devres_release_all(struct device *dev);
+
+extern struct kset devices_subsys;
diff --git a/drivers/base/bus.c b/drivers/base/bus.c
index 1d76e23..dca7348 100644
--- a/drivers/base/bus.c
+++ b/drivers/base/bus.c
@@ -17,7 +17,7 @@
#include "power/power.h"
#define to_bus_attr(_attr) container_of(_attr, struct bus_attribute, attr)
-#define to_bus(obj) container_of(obj, struct bus_type, subsys.kset.kobj)
+#define to_bus(obj) container_of(obj, struct bus_type, subsys.kobj)
/*
* sysfs bindings for drivers
@@ -123,7 +123,7 @@
{
int error;
if (get_bus(bus)) {
- error = sysfs_create_file(&bus->subsys.kset.kobj, &attr->attr);
+ error = sysfs_create_file(&bus->subsys.kobj, &attr->attr);
put_bus(bus);
} else
error = -EINVAL;
@@ -133,7 +133,7 @@
void bus_remove_file(struct bus_type * bus, struct bus_attribute * attr)
{
if (get_bus(bus)) {
- sysfs_remove_file(&bus->subsys.kset.kobj, &attr->attr);
+ sysfs_remove_file(&bus->subsys.kobj, &attr->attr);
put_bus(bus);
}
}
@@ -397,7 +397,7 @@
static int make_deprecated_bus_links(struct device *dev)
{
return sysfs_create_link(&dev->kobj,
- &dev->bus->subsys.kset.kobj, "bus");
+ &dev->bus->subsys.kobj, "bus");
}
static void remove_deprecated_bus_links(struct device *dev)
@@ -431,7 +431,7 @@
if (error)
goto out_id;
error = sysfs_create_link(&dev->kobj,
- &dev->bus->subsys.kset.kobj, "subsystem");
+ &dev->bus->subsys.kobj, "subsystem");
if (error)
goto out_subsys;
error = make_deprecated_bus_links(dev);
@@ -810,7 +810,7 @@
BLOCKING_INIT_NOTIFIER_HEAD(&bus->bus_notifier);
- retval = kobject_set_name(&bus->subsys.kset.kobj, "%s", bus->name);
+ retval = kobject_set_name(&bus->subsys.kobj, "%s", bus->name);
if (retval)
goto out;
@@ -820,13 +820,13 @@
goto out;
kobject_set_name(&bus->devices.kobj, "devices");
- bus->devices.subsys = &bus->subsys;
+ bus->devices.kobj.parent = &bus->subsys.kobj;
retval = kset_register(&bus->devices);
if (retval)
goto bus_devices_fail;
kobject_set_name(&bus->drivers.kobj, "drivers");
- bus->drivers.subsys = &bus->subsys;
+ bus->drivers.kobj.parent = &bus->subsys.kobj;
bus->drivers.ktype = &ktype_driver;
retval = kset_register(&bus->drivers);
if (retval)
diff --git a/drivers/base/class.c b/drivers/base/class.c
index 80bbb20..20c4ea6 100644
--- a/drivers/base/class.c
+++ b/drivers/base/class.c
@@ -19,10 +19,8 @@
#include <linux/slab.h>
#include "base.h"
-extern struct subsystem devices_subsys;
-
#define to_class_attr(_attr) container_of(_attr, struct class_attribute, attr)
-#define to_class(obj) container_of(obj, struct class, subsys.kset.kobj)
+#define to_class(obj) container_of(obj, struct class, subsys.kobj)
static ssize_t
class_attr_show(struct kobject * kobj, struct attribute * attr, char * buf)
@@ -80,7 +78,7 @@
{
int error;
if (cls) {
- error = sysfs_create_file(&cls->subsys.kset.kobj, &attr->attr);
+ error = sysfs_create_file(&cls->subsys.kobj, &attr->attr);
} else
error = -EINVAL;
return error;
@@ -89,7 +87,7 @@
void class_remove_file(struct class * cls, const struct class_attribute * attr)
{
if (cls)
- sysfs_remove_file(&cls->subsys.kset.kobj, &attr->attr);
+ sysfs_remove_file(&cls->subsys.kobj, &attr->attr);
}
static struct class *class_get(struct class *cls)
@@ -147,7 +145,7 @@
INIT_LIST_HEAD(&cls->interfaces);
kset_init(&cls->class_dirs);
init_MUTEX(&cls->sem);
- error = kobject_set_name(&cls->subsys.kset.kobj, "%s", cls->name);
+ error = kobject_set_name(&cls->subsys.kobj, "%s", cls->name);
if (error)
return error;
@@ -611,7 +609,7 @@
if (parent_class_dev)
class_dev->kobj.parent = &parent_class_dev->kobj;
else
- class_dev->kobj.parent = &parent_class->subsys.kset.kobj;
+ class_dev->kobj.parent = &parent_class->subsys.kobj;
error = kobject_add(&class_dev->kobj);
if (error)
@@ -619,7 +617,7 @@
/* add the needed attributes to this device */
error = sysfs_create_link(&class_dev->kobj,
- &parent_class->subsys.kset.kobj, "subsystem");
+ &parent_class->subsys.kobj, "subsystem");
if (error)
goto out3;
class_dev->uevent_attr.attr.name = "uevent";
@@ -917,8 +915,8 @@
/* ick, this is ugly, the things we go through to keep from showing up
* in sysfs... */
subsystem_init(&class_obj_subsys);
- if (!class_obj_subsys.kset.subsys)
- class_obj_subsys.kset.subsys = &class_obj_subsys;
+ if (!class_obj_subsys.kobj.parent)
+ class_obj_subsys.kobj.parent = &class_obj_subsys.kobj;
return 0;
}
diff --git a/drivers/base/core.c b/drivers/base/core.c
index 59d9816..b78fc1e 100644
--- a/drivers/base/core.c
+++ b/drivers/base/core.c
@@ -565,7 +565,7 @@
/* Set the parent to the class, not the parent device */
/* this keeps sysfs from having a symlink to make old udevs happy */
if (dev->class)
- return &dev->class->subsys.kset.kobj;
+ return &dev->class->subsys.kobj;
else if (parent)
return &parent->kobj;
@@ -577,7 +577,7 @@
static struct kobject *virtual_dir = NULL;
if (!virtual_dir)
- virtual_dir = kobject_add_dir(&devices_subsys.kset.kobj, "virtual");
+ virtual_dir = kobject_add_dir(&devices_subsys.kobj, "virtual");
return virtual_dir;
}
@@ -711,12 +711,12 @@
}
if (dev->class) {
- sysfs_create_link(&dev->kobj, &dev->class->subsys.kset.kobj,
+ sysfs_create_link(&dev->kobj, &dev->class->subsys.kobj,
"subsystem");
/* If this is not a "fake" compatible device, then create the
* symlink from the class to the device. */
- if (dev->kobj.parent != &dev->class->subsys.kset.kobj)
- sysfs_create_link(&dev->class->subsys.kset.kobj,
+ if (dev->kobj.parent != &dev->class->subsys.kobj)
+ sysfs_create_link(&dev->class->subsys.kobj,
&dev->kobj, dev->bus_id);
if (parent) {
sysfs_create_link(&dev->kobj, &dev->parent->kobj,
@@ -774,8 +774,8 @@
sysfs_remove_link(&dev->kobj, "subsystem");
/* If this is not a "fake" compatible device, remove the
* symlink from the class to the device. */
- if (dev->kobj.parent != &dev->class->subsys.kset.kobj)
- sysfs_remove_link(&dev->class->subsys.kset.kobj,
+ if (dev->kobj.parent != &dev->class->subsys.kobj)
+ sysfs_remove_link(&dev->class->subsys.kobj,
dev->bus_id);
if (parent) {
#ifdef CONFIG_SYSFS_DEPRECATED
@@ -875,8 +875,8 @@
sysfs_remove_link(&dev->kobj, "subsystem");
/* If this is not a "fake" compatible device, remove the
* symlink from the class to the device. */
- if (dev->kobj.parent != &dev->class->subsys.kset.kobj)
- sysfs_remove_link(&dev->class->subsys.kset.kobj,
+ if (dev->kobj.parent != &dev->class->subsys.kobj)
+ sysfs_remove_link(&dev->class->subsys.kobj,
dev->bus_id);
if (parent) {
#ifdef CONFIG_SYSFS_DEPRECATED
@@ -1192,9 +1192,9 @@
#endif
if (dev->class) {
- sysfs_remove_link(&dev->class->subsys.kset.kobj,
+ sysfs_remove_link(&dev->class->subsys.kobj,
old_symlink_name);
- sysfs_create_link(&dev->class->subsys.kset.kobj, &dev->kobj,
+ sysfs_create_link(&dev->class->subsys.kobj, &dev->kobj,
dev->bus_id);
}
put_device(dev);
diff --git a/drivers/base/firmware.c b/drivers/base/firmware.c
index cb1b98a..90c8629 100644
--- a/drivers/base/firmware.c
+++ b/drivers/base/firmware.c
@@ -17,13 +17,13 @@
static decl_subsys(firmware, NULL, NULL);
-int firmware_register(struct subsystem * s)
+int firmware_register(struct kset *s)
{
- kset_set_kset_s(s, firmware_subsys);
+ kobj_set_kset_s(s, firmware_subsys);
return subsystem_register(s);
}
-void firmware_unregister(struct subsystem * s)
+void firmware_unregister(struct kset *s)
{
subsystem_unregister(s);
}
diff --git a/drivers/base/power/shutdown.c b/drivers/base/power/shutdown.c
index 58b6f77..a47ee1b 100644
--- a/drivers/base/power/shutdown.c
+++ b/drivers/base/power/shutdown.c
@@ -16,8 +16,6 @@
#define to_dev(node) container_of(node, struct device, kobj.entry)
-extern struct subsystem devices_subsys;
-
/**
* We handle system devices differently - we suspend and shut them
@@ -36,7 +34,7 @@
{
struct device * dev, *devn;
- list_for_each_entry_safe_reverse(dev, devn, &devices_subsys.kset.list,
+ list_for_each_entry_safe_reverse(dev, devn, &devices_subsys.list,
kobj.entry) {
if (dev->bus && dev->bus->shutdown) {
dev_dbg(dev, "shutdown\n");
diff --git a/drivers/base/sys.c b/drivers/base/sys.c
index 04e5db4..29f1291 100644
--- a/drivers/base/sys.c
+++ b/drivers/base/sys.c
@@ -25,7 +25,7 @@
#include "base.h"
-extern struct subsystem devices_subsys;
+extern struct kset devices_subsys;
#define to_sysdev(k) container_of(k, struct sys_device, kobj)
#define to_sysdev_attr(a) container_of(a, struct sysdev_attribute, attr)
@@ -138,7 +138,7 @@
pr_debug("Registering sysdev class '%s'\n",
kobject_name(&cls->kset.kobj));
INIT_LIST_HEAD(&cls->drivers);
- cls->kset.subsys = &system_subsys;
+ cls->kset.kobj.parent = &system_subsys.kobj;
kset_set_kset_s(cls, system_subsys);
return kset_register(&cls->kset);
}
@@ -309,7 +309,7 @@
pr_debug("Shutting Down System Devices\n");
down(&sysdev_drivers_lock);
- list_for_each_entry_reverse(cls, &system_subsys.kset.list,
+ list_for_each_entry_reverse(cls, &system_subsys.list,
kset.kobj.entry) {
struct sys_device * sysdev;
@@ -384,7 +384,7 @@
pr_debug("Suspending System Devices\n");
- list_for_each_entry_reverse(cls, &system_subsys.kset.list,
+ list_for_each_entry_reverse(cls, &system_subsys.list,
kset.kobj.entry) {
pr_debug("Suspending type '%s':\n",
@@ -457,7 +457,7 @@
}
/* resume other classes */
- list_for_each_entry_continue(cls, &system_subsys.kset.list,
+ list_for_each_entry_continue(cls, &system_subsys.list,
kset.kobj.entry) {
list_for_each_entry(err_dev, &cls->kset.list, kobj.entry) {
pr_debug(" %s\n", kobject_name(&err_dev->kobj));
@@ -483,7 +483,7 @@
pr_debug("Resuming System Devices\n");
- list_for_each_entry(cls, &system_subsys.kset.list, kset.kobj.entry) {
+ list_for_each_entry(cls, &system_subsys.list, kset.kobj.entry) {
struct sys_device * sysdev;
pr_debug("Resuming type '%s':\n",
@@ -501,7 +501,7 @@
int __init system_bus_init(void)
{
- system_subsys.kset.kobj.parent = &devices_subsys.kset.kobj;
+ system_subsys.kobj.parent = &devices_subsys.kobj;
return subsystem_register(&system_subsys);
}