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Commit 672d82c1 authored by Eric W. Biederman's avatar Eric W. Biederman Committed by David S. Miller
Browse files

class: Implement support for class attrs in tagged sysfs directories.

parent 487505c2
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+15 −2
Original line number Diff line number Diff line
@@ -47,6 +47,18 @@ static ssize_t class_attr_store(struct kobject *kobj, struct attribute *attr,
	return ret;
}

static const void *class_attr_namespace(struct kobject *kobj,
					const struct attribute *attr)
{
	struct class_attribute *class_attr = to_class_attr(attr);
	struct subsys_private *cp = to_subsys_private(kobj);
	const void *ns = NULL;

	if (class_attr->namespace)
		ns = class_attr->namespace(cp->class, class_attr);
	return ns;
}

static void class_release(struct kobject *kobj)
{
	struct subsys_private *cp = to_subsys_private(kobj);
@@ -74,6 +86,7 @@ static const struct kobj_ns_type_operations *class_child_ns_type(struct kobject
static const struct sysfs_ops class_sysfs_ops = {
	.show	   = class_attr_show,
	.store	   = class_attr_store,
	.namespace = class_attr_namespace,
};

static struct kobj_type class_ktype = {
+2 −0
Original line number Diff line number Diff line
@@ -350,6 +350,8 @@ struct class_attribute {
			char *buf);
	ssize_t (*store)(struct class *class, struct class_attribute *attr,
			const char *buf, size_t count);
	const void *(*namespace)(struct class *class,
				 const struct class_attribute *attr);
};

#define CLASS_ATTR(_name, _mode, _show, _store)			\