diff --git a/libdde-linux26/contrib/include/linux/workqueue.h b/libdde-linux26/contrib/include/linux/workqueue.h
index 3cd51e5..cf24c20 100644
--- a/libdde-linux26/contrib/include/linux/workqueue.h
+++ b/libdde-linux26/contrib/include/linux/workqueue.h
@@ -41,6 +41,11 @@ struct delayed_work {
 	struct timer_list timer;
 };
 
+static inline struct delayed_work *to_delayed_work(struct work_struct *work)
+{
+	return container_of(work, struct delayed_work, work);
+}
+
 struct execute_work {
 	struct work_struct work;
 };
@@ -89,7 +94,7 @@ struct execute_work {
 /*
  * initialize all of a work item in one go
  *
- * NOTE! No point in using "atomic_long_set()": useing a direct
+ * NOTE! No point in using "atomic_long_set()": using a direct
  * assignment of the work data initializer allows the compiler
  * to generate better code.
  */
@@ -202,6 +207,7 @@
 
 extern void flush_workqueue(struct workqueue_struct *wq);
 extern void flush_scheduled_work(void);
+extern void flush_delayed_work(struct delayed_work *work);
 
 extern int schedule_work(struct work_struct *work);
 extern int schedule_work_on(int cpu, struct work_struct *work);
@@ -233,6 +239,21 @@
 	if (ret)
 		work_clear_pending(&work->work);
 	return ret;
+}
+
+/*
+ * Like above, but uses del_timer() instead of del_timer_sync(). This means,
+ * if it returns 0 the timer function may be running and the queueing is in
+ * progress.
+ */
+static inline int __cancel_delayed_work(struct delayed_work *work)
+{
+	int ret;
+
+	ret = del_timer(&work->timer);
+	if (ret)
+		work_clear_pending(&work->work);
+	return ret;
 }
 
 extern int cancel_delayed_work_sync(struct delayed_work *work);