diff --git a/include/sound/memalloc.h b/include/sound/memalloc.h
index 240622d..6ada3b8 100644
--- a/include/sound/memalloc.h
+++ b/include/sound/memalloc.h
@@ -44,6 +44,7 @@ struct snd_dma_device {
 #else
 #define SNDRV_DMA_TYPE_DEV_IRAM	SNDRV_DMA_TYPE_DEV
 #endif
+#define SNDRV_DMA_TYPE_VMALLOC		7	/* vmalloc'ed buffer */
 
 /*
  * info for buffer allocation