Update Linux to v5.4.2

Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/include/linux/kobject.h b/include/linux/kobject.h
index 1ab0d62..e2ca0a2 100644
--- a/include/linux/kobject.h
+++ b/include/linux/kobject.h
@@ -139,7 +139,8 @@
 struct kobj_type {
 	void (*release)(struct kobject *kobj);
 	const struct sysfs_ops *sysfs_ops;
-	struct attribute **default_attrs;
+	struct attribute **default_attrs;	/* use default_groups instead */
+	const struct attribute_group **default_groups;
 	const struct kobj_ns_type_operations *(*child_ns_type)(struct kobject *kobj);
 	const void *(*namespace)(struct kobject *kobj);
 	void (*get_ownership)(struct kobject *kobj, kuid_t *uid, kgid_t *gid);