diff --git a/lib/dma-noop.c b/lib/dma-noop.c
index 65e49dd35b7b9d39b7b42b89d53295230be80b86..de26c8b68f344857a4a066b03ba937825c03b6ca 100644
--- a/lib/dma-noop.c
+++ b/lib/dma-noop.c
@@ -1,7 +1,7 @@
 /*
  *	lib/dma-noop.c
  *
- * Simple DMA noop-ops that map 1:1 with memory
+ * DMA operations that map to physical addresses without flushing memory.
  */
 #include <linux/export.h>
 #include <linux/mm.h>