#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)
{
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;
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)
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;
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)
return class_name;
}
-static int deprecated_class_uevent(char **envp, int num_envp, int *cur_index,
- char *buffer, int buffer_size,
- int *cur_len,
- struct class_device *class_dev)
-{
- struct device *dev = class_dev->dev;
- char *path;
-
- if (!dev)
- return 0;
-
- /* add device, backing this class device (deprecated) */
- path = kobject_get_path(&dev->kobj, GFP_KERNEL);
-
- add_uevent_var(envp, num_envp, cur_index, buffer, buffer_size,
- cur_len, "PHYSDEVPATH=%s", path);
- kfree(path);
-
- if (dev->bus)
- add_uevent_var(envp, num_envp, cur_index,
- buffer, buffer_size, cur_len,
- "PHYSDEVBUS=%s", dev->bus->name);
-
- if (dev->driver)
- add_uevent_var(envp, num_envp, cur_index,
- buffer, buffer_size, cur_len,
- "PHYSDEVDRIVER=%s", dev->driver->name);
- return 0;
-}
-
static int make_deprecated_class_device_links(struct class_device *class_dev)
{
char *class_name;
kfree(class_name);
}
#else
-static inline int deprecated_class_uevent(char **envp, int num_envp,
- int *cur_index, char *buffer,
- int buffer_size, int *cur_len,
- struct class_device *class_dev)
-{ return 0; }
static inline int make_deprecated_class_device_links(struct class_device *cd)
{ return 0; }
static void remove_deprecated_class_device_links(struct class_device *cd)
int num_envp, char *buffer, int buffer_size)
{
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);
- deprecated_class_uevent(envp, num_envp, &i, buffer, buffer_size,
- &length, class_dev);
-
if (MAJOR(class_dev->devt)) {
add_uevent_var(envp, num_envp, &i,
buffer, buffer_size, &length,
"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);
+ kfree(path);
+ }
+
+ if (dev->bus)
+ add_uevent_var(envp, num_envp, &i,
+ buffer, buffer_size, &length,
+ "PHYSDEVBUS=%s", dev->bus->name);
+
+ if (dev->driver)
+ add_uevent_var(envp, num_envp, &i,
+ buffer, buffer_size, &length,
+ "PHYSDEVDRIVER=%s", dev->driver->name);
+ }
+
/* terminate, set to next free slot, shrink available space */
envp[i] = NULL;
envp = &envp[i];
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);
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)
/* 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";
- 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);
/* 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;
}
projects / powerpc.git / blobdiff