1 files changed, 1 insertions, 0 deletions

diff --git a/include/scsi/sas.h b/include/scsi/sas.h
index a577a833603d..be3eb0bf1ac0 100644
--- a/include/scsi/sas.h
+++ b/include/scsi/sas.h
@@ -103,6 +103,7 @@ enum sas_dev_type {
 };
 
 enum sas_protocol {
+        SAS_PROTOCOL_NONE               = 0,
         SAS_PROTOCOL_SATA               = 0x01,
         SAS_PROTOCOL_SMP                = 0x02,
         SAS_PROTOCOL_STP                = 0x04,