diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h
index 2396456..c0a027e 100644
--- a/fs/cifs/cifsglob.h
+++ b/fs/cifs/cifsglob.h
@@ -152,6 +152,7 @@
 
 enum smb_version {
 	Smb_1 = 1,
+	Smb_21,
 };
 
 struct mid_q_entry;
@@ -1122,4 +1123,7 @@
 #define SMB1_VERSION_STRING	"1.0"
 extern struct smb_version_operations smb1_operations;
 extern struct smb_version_values smb1_values;
+#define SMB21_VERSION_STRING	"2.1"
+extern struct smb_version_operations smb21_operations;
+extern struct smb_version_values smb21_values;
 #endif	/* _CIFS_GLOB_H */