1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/ata/libata.h b/drivers/ata/libata.h
index 11f64a43b38a..e45f6d5542d5 100644
--- a/drivers/ata/libata.h
+++ b/drivers/ata/libata.h
@@ -29,6 +29,7 @@
 #define __LIBATA_H__
 
 #define DRV_NAME        "libata"
+#define DRV_VERSION     "2.21"  /* must be exactly four chars */
 
 struct ata_scsi_args {
         struct ata_device       *dev;