static int __must_check bus_rescan_devices_helper(struct device *dev,
void *data);
+static struct bus_type *bus_get(struct bus_type *bus)
+{
+ return bus ? container_of(kset_get(&bus->subsys),
+ struct bus_type, subsys) : NULL;
+}
+
+static void bus_put(struct bus_type *bus)
+{
+ kset_put(&bus->subsys);
+}
+
static ssize_t
drv_attr_show(struct kobject * kobj, struct attribute * attr, char * buf)
{
*/
}
-static struct kobj_type ktype_driver = {
+static struct kobj_type driver_ktype = {
.sysfs_ops = &driver_sysfs_ops,
.release = driver_release,
};
int bus_create_file(struct bus_type * bus, struct bus_attribute * attr)
{
int error;
- if (get_bus(bus)) {
+ if (bus_get(bus)) {
error = sysfs_create_file(&bus->subsys.kobj, &attr->attr);
- put_bus(bus);
+ bus_put(bus);
} else
error = -EINVAL;
return error;
void bus_remove_file(struct bus_type * bus, struct bus_attribute * attr)
{
- if (get_bus(bus)) {
+ if (bus_get(bus)) {
sysfs_remove_file(&bus->subsys.kobj, &attr->attr);
- put_bus(bus);
+ bus_put(bus);
}
}
-static struct kobj_type ktype_bus = {
+static struct kobj_type bus_ktype = {
.sysfs_ops = &bus_sysfs_ops,
+};
+
+static int bus_uevent_filter(struct kset *kset, struct kobject *kobj)
+{
+ struct kobj_type *ktype = get_ktype(kobj);
+
+ if (ktype == &bus_ktype)
+ return 1;
+ return 0;
+}
+static struct kset_uevent_ops bus_uevent_ops = {
+ .filter = bus_uevent_filter,
};
-static decl_subsys(bus, &ktype_bus, NULL);
+static struct kset *bus_kset;
#ifdef CONFIG_HOTPLUG
static ssize_t driver_unbind(struct device_driver *drv,
const char *buf, size_t count)
{
- struct bus_type *bus = get_bus(drv->bus);
+ struct bus_type *bus = bus_get(drv->bus);
struct device *dev;
int err = -ENODEV;
err = count;
}
put_device(dev);
- put_bus(bus);
+ bus_put(bus);
return err;
}
static DRIVER_ATTR(unbind, S_IWUSR, NULL, driver_unbind);
static ssize_t driver_bind(struct device_driver *drv,
const char *buf, size_t count)
{
- struct bus_type *bus = get_bus(drv->bus);
+ struct bus_type *bus = bus_get(drv->bus);
struct device *dev;
int err = -ENODEV;
err = -ENODEV;
}
put_device(dev);
- put_bus(bus);
+ bus_put(bus);
return err;
}
static DRIVER_ATTR(bind, S_IWUSR, NULL, driver_bind);
*/
int bus_add_device(struct device * dev)
{
- struct bus_type * bus = get_bus(dev->bus);
+ struct bus_type * bus = bus_get(dev->bus);
int error = 0;
if (bus) {
error = device_add_attrs(bus, dev);
if (error)
goto out_put;
- error = sysfs_create_link(&bus->devices.kobj,
+ error = sysfs_create_link(&bus->devices_kset->kobj,
&dev->kobj, dev->bus_id);
if (error)
goto out_id;
out_deprecated:
sysfs_remove_link(&dev->kobj, "subsystem");
out_subsys:
- sysfs_remove_link(&bus->devices.kobj, dev->bus_id);
+ sysfs_remove_link(&bus->devices_kset->kobj, dev->bus_id);
out_id:
device_remove_attrs(bus, dev);
out_put:
- put_bus(dev->bus);
+ bus_put(dev->bus);
return error;
}
if (dev->bus) {
sysfs_remove_link(&dev->kobj, "subsystem");
remove_deprecated_bus_links(dev);
- sysfs_remove_link(&dev->bus->devices.kobj, dev->bus_id);
+ sysfs_remove_link(&dev->bus->devices_kset->kobj, dev->bus_id);
device_remove_attrs(dev->bus, dev);
if (dev->is_registered) {
dev->is_registered = 0;
}
pr_debug("bus %s: remove device %s\n", dev->bus->name, dev->bus_id);
device_release_driver(dev);
- put_bus(dev->bus);
+ bus_put(dev->bus);
}
}
driver_remove_file(drv, &driver_attr_unbind);
}
+static BUS_ATTR(drivers_probe, S_IWUSR, NULL, store_drivers_probe);
+static BUS_ATTR(drivers_autoprobe, S_IWUSR | S_IRUGO,
+ show_drivers_autoprobe, store_drivers_autoprobe);
+
static int add_probe_files(struct bus_type *bus)
{
int retval;
- bus->drivers_probe_attr.attr.name = "drivers_probe";
- bus->drivers_probe_attr.attr.mode = S_IWUSR;
- bus->drivers_probe_attr.attr.owner = bus->owner;
- bus->drivers_probe_attr.store = store_drivers_probe;
- retval = bus_create_file(bus, &bus->drivers_probe_attr);
+ retval = bus_create_file(bus, &bus_attr_drivers_probe);
if (retval)
goto out;
- bus->drivers_autoprobe_attr.attr.name = "drivers_autoprobe";
- bus->drivers_autoprobe_attr.attr.mode = S_IWUSR | S_IRUGO;
- bus->drivers_autoprobe_attr.attr.owner = bus->owner;
- bus->drivers_autoprobe_attr.show = show_drivers_autoprobe;
- bus->drivers_autoprobe_attr.store = store_drivers_autoprobe;
- retval = bus_create_file(bus, &bus->drivers_autoprobe_attr);
+ retval = bus_create_file(bus, &bus_attr_drivers_autoprobe);
if (retval)
- bus_remove_file(bus, &bus->drivers_probe_attr);
+ bus_remove_file(bus, &bus_attr_drivers_probe);
out:
return retval;
}
static void remove_probe_files(struct bus_type *bus)
{
- bus_remove_file(bus, &bus->drivers_autoprobe_attr);
- bus_remove_file(bus, &bus->drivers_probe_attr);
+ bus_remove_file(bus, &bus_attr_drivers_autoprobe);
+ bus_remove_file(bus, &bus_attr_drivers_probe);
}
#else
static inline int add_bind_files(struct device_driver *drv) { return 0; }
static inline void remove_probe_files(struct bus_type *bus) {}
#endif
+static ssize_t driver_uevent_store(struct device_driver *drv,
+ const char *buf, size_t count)
+{
+ enum kobject_action action;
+
+ if (kobject_action_type(buf, count, &action) == 0)
+ kobject_uevent(&drv->kobj, action);
+ return count;
+}
+static DRIVER_ATTR(uevent, S_IWUSR, NULL, driver_uevent_store);
+
/**
* bus_add_driver - Add a driver to the bus.
* @drv: driver.
*/
int bus_add_driver(struct device_driver *drv)
{
- struct bus_type * bus = get_bus(drv->bus);
+ struct bus_type * bus = bus_get(drv->bus);
int error = 0;
if (!bus)
if (error)
goto out_put_bus;
drv->kobj.kset = &bus->drivers;
- if ((error = kobject_register(&drv->kobj)))
+ drv->kobj.ktype = &driver_ktype;
+ error = kobject_register(&drv->kobj);
+ if (error)
goto out_put_bus;
if (drv->bus->drivers_autoprobe) {
klist_add_tail(&drv->knode_bus, &bus->klist_drivers);
module_add_driver(drv->owner, drv);
+ error = driver_create_file(drv, &driver_attr_uevent);
+ if (error) {
+ printk(KERN_ERR "%s: uevent attr (%s) failed\n",
+ __FUNCTION__, drv->name);
+ }
error = driver_add_attrs(bus, drv);
if (error) {
/* How the hell do we get out of this pickle? Give up */
out_unregister:
kobject_unregister(&drv->kobj);
out_put_bus:
- put_bus(bus);
+ bus_put(bus);
return error;
}
remove_bind_files(drv);
driver_remove_attrs(drv->bus, drv);
+ driver_remove_file(drv, &driver_attr_uevent);
klist_remove(&drv->knode_bus);
pr_debug("bus %s: remove driver %s\n", drv->bus->name, drv->name);
driver_detach(drv);
module_remove_driver(drv);
kobject_unregister(&drv->kobj);
- put_bus(drv->bus);
+ bus_put(drv->bus);
}
}
EXPORT_SYMBOL_GPL(device_reprobe);
-struct bus_type *get_bus(struct bus_type *bus)
-{
- return bus ? container_of(subsys_get(&bus->subsys),
- struct bus_type, subsys) : NULL;
-}
-
-void put_bus(struct bus_type * bus)
-{
- subsys_put(&bus->subsys);
-}
-
-
/**
* find_bus - locate bus by name.
* @name: name of bus.
#if 0
struct bus_type * find_bus(char * name)
{
- struct kobject * k = kset_find_obj(&bus_subsys.kset, name);
+ struct kobject * k = kset_find_obj(bus_kset, name);
return k ? to_bus(k) : NULL;
}
#endif /* 0 */
if (bus->bus_attrs) {
for (i = 0; attr_name(bus->bus_attrs[i]); i++) {
- if ((error = bus_create_file(bus,&bus->bus_attrs[i])))
+ error = bus_create_file(bus,&bus->bus_attrs[i]);
+ if (error)
goto Err;
}
}
put_device(dev);
}
+static ssize_t bus_uevent_store(struct bus_type *bus,
+ const char *buf, size_t count)
+{
+ enum kobject_action action;
+
+ if (kobject_action_type(buf, count, &action) == 0)
+ kobject_uevent(&bus->subsys.kobj, action);
+ return count;
+}
+static BUS_ATTR(uevent, S_IWUSR, NULL, bus_uevent_store);
+
/**
* bus_register - register a bus with the system.
* @bus: bus.
if (retval)
goto out;
- subsys_set_kset(bus, bus_subsys);
+ bus->subsys.kobj.kset = bus_kset;
+ bus->subsys.kobj.ktype = &bus_ktype;
+
retval = subsystem_register(&bus->subsys);
if (retval)
goto out;
- kobject_set_name(&bus->devices.kobj, "devices");
- bus->devices.kobj.parent = &bus->subsys.kobj;
- retval = kset_register(&bus->devices);
+ retval = bus_create_file(bus, &bus_attr_uevent);
if (retval)
+ goto bus_uevent_fail;
+
+ bus->devices_kset = kset_create_and_add("devices", NULL,
+ &bus->subsys.kobj);
+ if (!bus->devices_kset) {
+ retval = -ENOMEM;
goto bus_devices_fail;
+ }
kobject_set_name(&bus->drivers.kobj, "drivers");
bus->drivers.kobj.parent = &bus->subsys.kobj;
- bus->drivers.ktype = &ktype_driver;
retval = kset_register(&bus->drivers);
if (retval)
goto bus_drivers_fail;
bus_probe_files_fail:
kset_unregister(&bus->drivers);
bus_drivers_fail:
- kset_unregister(&bus->devices);
+ kset_unregister(bus->devices_kset);
bus_devices_fail:
+ bus_remove_file(bus, &bus_attr_uevent);
+bus_uevent_fail:
subsystem_unregister(&bus->subsys);
out:
return retval;
* @bus: bus.
*
* Unregister the child subsystems and the bus itself.
- * Finally, we call put_bus() to release the refcount
+ * Finally, we call bus_put() to release the refcount
*/
void bus_unregister(struct bus_type * bus)
{
bus_remove_attrs(bus);
remove_probe_files(bus);
kset_unregister(&bus->drivers);
- kset_unregister(&bus->devices);
+ kset_unregister(bus->devices_kset);
+ bus_remove_file(bus, &bus_attr_uevent);
subsystem_unregister(&bus->subsys);
}
int __init buses_init(void)
{
- return subsystem_register(&bus_subsys);
+ bus_kset = kset_create_and_add("bus", &bus_uevent_ops, NULL);
+ if (!bus_kset)
+ return -ENOMEM;
+ return 0;
}
projects / linux-2.6-omap-h63xx.git / blobdiff