--- /dev/null
+#ifndef _LINUX_SCATTERLIST_H
+#define _LINUX_SCATTERLIST_H
+
+static inline void sg_init_one(struct scatterlist *sg,
+ u8 *buf, unsigned int buflen)
+{
+ memset(sg, 0, sizeof(*sg));
+
+ sg->page = virt_to_page(buf);
+ sg->offset = offset_in_page(buf);
+ sg->length = buflen;
+}
+
+#endif /* _LINUX_SCATTERLIST_H */