--- /dev/null
+#ifndef _LINUX_POISON_H
+#define _LINUX_POISON_H
+
+/********** include/linux/list.h **********/
+/*
+ * used to verify that nobody uses non-initialized list entries.
+ */
+#define LIST_POISON1 ((void *) 0x0)
+#define LIST_POISON2 ((void *) 0x0)
+
+#endif