1 files changed, 16 insertions, 0 deletions

diff --git a/include/linux/scatterlist.h b/include/linux/scatterlist.h
index e96b9546c4c6..5951e3f38878 100644
--- a/include/linux/scatterlist.h
+++ b/include/linux/scatterlist.h
@@ -172,6 +172,22 @@ static inline void sg_mark_end(struct scatterlist *sg)
 }
 
 /**
+ * sg_unmark_end - Undo setting the end of the scatterlist
+ * @sg:          SG entryScatterlist
+ *
+ * Description:
+ *   Removes the termination marker from the given entry of the scatterlist.
+ *
+ **/
+static inline void sg_unmark_end(struct scatterlist *sg)
+{
+#ifdef CONFIG_DEBUG_SG
+        BUG_ON(sg->sg_magic != SG_MAGIC);
+#endif
+        sg->page_link &= ~0x02;
+}
+
+/**
  * sg_phys - Return physical address of an sg entry
  * @sg:      SG entry
  *