#include <linux/kdev_t.h>
#include <linux/err.h>
#include <linux/slab.h>
+#include <linux/genhd.h>
#include "base.h"
#define to_class_attr(_attr) container_of(_attr, struct class_attribute, attr)
.store = class_attr_store,
};
-static struct kobj_type ktype_class = {
+static struct kobj_type class_ktype = {
.sysfs_ops = &class_sysfs_ops,
.release = class_release,
};
/* Hotplug events for classes go to the class_obj subsys */
-static decl_subsys(class, &ktype_class, NULL);
+static struct kset *class_kset;
int class_create_file(struct class * cls, const struct class_attribute * attr)
static struct class *class_get(struct class *cls)
{
if (cls)
- return container_of(subsys_get(&cls->subsys), struct class, subsys);
+ return container_of(kset_get(&cls->subsys), struct class, subsys);
return NULL;
}
static void class_put(struct class * cls)
{
if (cls)
- subsys_put(&cls->subsys);
+ kset_put(&cls->subsys);
}
if (error)
return error;
- subsys_set_kset(cls, class_subsys);
+#ifdef CONFIG_SYSFS_DEPRECATED
+ /* let the block class directory show up in the root of sysfs */
+ if (cls != &block_class)
+ cls->subsys.kobj.kset = class_kset;
+#else
+ cls->subsys.kobj.kset = class_kset;
+#endif
+ cls->subsys.kobj.ktype = &class_ktype;
- error = subsystem_register(&cls->subsys);
+ error = kset_register(&cls->subsys);
if (!error) {
error = add_class_attrs(class_get(cls));
class_put(cls);
{
pr_debug("device class '%s': unregistering\n", cls->name);
remove_class_attrs(cls);
- subsystem_unregister(&cls->subsys);
+ kset_unregister(&cls->subsys);
}
static void class_create_release(struct class *cls)
/* needed to allow these devices to have parent class devices */
static int class_device_create_uevent(struct class_device *class_dev,
- char **envp, int num_envp,
- char *buffer, int buffer_size)
+ struct kobj_uevent_env *env)
{
pr_debug("%s called for %s\n", __FUNCTION__, class_dev->class_id);
return 0;
pr_debug("device class '%s': release.\n", cd->class_id);
- kfree(cd->devt_attr);
- cd->devt_attr = NULL;
-
if (cd->release)
cd->release(cd);
else if (cls->release)
}
}
-static struct kobj_type ktype_class_device = {
+static struct kobj_type class_device_ktype = {
.sysfs_ops = &class_dev_sysfs_ops,
.release = class_dev_release,
};
{
struct kobj_type *ktype = get_ktype(kobj);
- if (ktype == &ktype_class_device) {
+ if (ktype == &class_device_ktype) {
struct class_device *class_dev = to_class_dev(kobj);
if (class_dev->class)
return 1;
{ }
#endif
-static int class_uevent(struct kset *kset, struct kobject *kobj, char **envp,
- int num_envp, char *buffer, int buffer_size)
+static int class_uevent(struct kset *kset, struct kobject *kobj,
+ struct kobj_uevent_env *env)
{
struct class_device *class_dev = to_class_dev(kobj);
struct device *dev = class_dev->dev;
- int i = 0;
- int length = 0;
int retval = 0;
pr_debug("%s - name = %s\n", __FUNCTION__, class_dev->class_id);
if (MAJOR(class_dev->devt)) {
- add_uevent_var(envp, num_envp, &i,
- buffer, buffer_size, &length,
- "MAJOR=%u", MAJOR(class_dev->devt));
+ add_uevent_var(env, "MAJOR=%u", MAJOR(class_dev->devt));
- add_uevent_var(envp, num_envp, &i,
- buffer, buffer_size, &length,
- "MINOR=%u", MINOR(class_dev->devt));
+ add_uevent_var(env, "MINOR=%u", MINOR(class_dev->devt));
}
if (dev) {
const char *path = kobject_get_path(&dev->kobj, GFP_KERNEL);
if (path) {
- add_uevent_var(envp, num_envp, &i,
- buffer, buffer_size, &length,
- "PHYSDEVPATH=%s", path);
+ add_uevent_var(env, "PHYSDEVPATH=%s", path);
kfree(path);
}
if (dev->bus)
- add_uevent_var(envp, num_envp, &i,
- buffer, buffer_size, &length,
- "PHYSDEVBUS=%s", dev->bus->name);
+ add_uevent_var(env, "PHYSDEVBUS=%s", dev->bus->name);
if (dev->driver)
- add_uevent_var(envp, num_envp, &i,
- buffer, buffer_size, &length,
- "PHYSDEVDRIVER=%s", dev->driver->name);
+ add_uevent_var(env, "PHYSDEVDRIVER=%s", dev->driver->name);
}
- /* terminate, set to next free slot, shrink available space */
- envp[i] = NULL;
- envp = &envp[i];
- num_envp -= i;
- buffer = &buffer[length];
- buffer_size -= length;
-
if (class_dev->uevent) {
/* have the class device specific function add its stuff */
- retval = class_dev->uevent(class_dev, envp, num_envp,
- buffer, buffer_size);
+ retval = class_dev->uevent(class_dev, env);
if (retval)
pr_debug("class_dev->uevent() returned %d\n", retval);
} else if (class_dev->class->uevent) {
/* have the class specific function add its stuff */
- retval = class_dev->class->uevent(class_dev, envp, num_envp,
- buffer, buffer_size);
+ retval = class_dev->class->uevent(class_dev, env);
if (retval)
pr_debug("class->uevent() returned %d\n", retval);
}
.uevent = class_uevent,
};
-static decl_subsys(class_obj, &ktype_class_device, &class_uevent_ops);
-
+/*
+ * DO NOT copy how this is created, kset_create_and_add() should be
+ * called, but this is a hold-over from the old-way and will be deleted
+ * entirely soon.
+ */
+static struct kset class_obj_subsys = {
+ .uevent_ops = &class_uevent_ops,
+};
static int class_device_add_attrs(struct class_device * cd)
{
return print_dev_t(buf, class_dev->devt);
}
+static struct class_device_attribute class_devt_attr =
+ __ATTR(dev, S_IRUGO, show_dev, NULL);
+
static ssize_t store_uevent(struct class_device *class_dev,
const char *buf, size_t count)
{
return count;
}
+static struct class_device_attribute class_uevent_attr =
+ __ATTR(uevent, S_IWUSR, NULL, store_uevent);
+
void class_device_initialize(struct class_device *class_dev)
{
- kobj_set_kset_s(class_dev, class_obj_subsys);
- kobject_init(&class_dev->kobj);
+ class_dev->kobj.kset = &class_obj_subsys;
+ kobject_init(&class_dev->kobj, &class_device_ktype);
INIT_LIST_HEAD(&class_dev->node);
}
class_dev->class_id);
/* first, register with generic layer. */
- error = kobject_set_name(&class_dev->kobj, "%s", class_dev->class_id);
- if (error)
- goto out2;
-
if (parent_class_dev)
class_dev->kobj.parent = &parent_class_dev->kobj;
else
class_dev->kobj.parent = &parent_class->subsys.kobj;
- error = kobject_add(&class_dev->kobj);
+ error = kobject_add(&class_dev->kobj, class_dev->kobj.parent,
+ "%s", class_dev->class_id);
if (error)
goto out2;
&parent_class->subsys.kobj, "subsystem");
if (error)
goto out3;
- class_dev->uevent_attr.attr.name = "uevent";
- class_dev->uevent_attr.attr.mode = S_IWUSR;
- class_dev->uevent_attr.attr.owner = parent_class->owner;
- class_dev->uevent_attr.store = store_uevent;
- error = class_device_create_file(class_dev, &class_dev->uevent_attr);
+
+ error = class_device_create_file(class_dev, &class_uevent_attr);
if (error)
goto out3;
if (MAJOR(class_dev->devt)) {
- struct class_device_attribute *attr;
- attr = kzalloc(sizeof(*attr), GFP_KERNEL);
- if (!attr) {
- error = -ENOMEM;
- goto out4;
- }
- attr->attr.name = "dev";
- attr->attr.mode = S_IRUGO;
- attr->attr.owner = parent_class->owner;
- attr->show = show_dev;
- error = class_device_create_file(class_dev, attr);
- if (error) {
- kfree(attr);
+ error = class_device_create_file(class_dev, &class_devt_attr);
+ if (error)
goto out4;
- }
-
- class_dev->devt_attr = attr;
}
error = class_device_add_attrs(class_dev);
out6:
class_device_remove_attrs(class_dev);
out5:
- if (class_dev->devt_attr)
- class_device_remove_file(class_dev, class_dev->devt_attr);
+ if (MAJOR(class_dev->devt))
+ class_device_remove_file(class_dev, &class_devt_attr);
out4:
- class_device_remove_file(class_dev, &class_dev->uevent_attr);
+ class_device_remove_file(class_dev, &class_uevent_attr);
out3:
kobject_del(&class_dev->kobj);
out2:
sysfs_remove_link(&class_dev->kobj, "device");
}
sysfs_remove_link(&class_dev->kobj, "subsystem");
- class_device_remove_file(class_dev, &class_dev->uevent_attr);
- if (class_dev->devt_attr)
- class_device_remove_file(class_dev, class_dev->devt_attr);
+ class_device_remove_file(class_dev, &class_uevent_attr);
+ if (MAJOR(class_dev->devt))
+ class_device_remove_file(class_dev, &class_devt_attr);
class_device_remove_attrs(class_dev);
class_device_remove_groups(class_dev);
int __init classes_init(void)
{
- int retval;
-
- retval = subsystem_register(&class_subsys);
- if (retval)
- return retval;
+ class_kset = kset_create_and_add("class", NULL, NULL);
+ if (!class_kset)
+ return -ENOMEM;
/* 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);
+ kobject_set_name(&class_obj_subsys.kobj, "class_obj");
if (!class_obj_subsys.kobj.parent)
class_obj_subsys.kobj.parent = &class_obj_subsys.kobj;
return 0;
projects / linux-2.6-omap-h63xx.git / blobdiff