diff --git a/fs/cifs/cifsproto.h b/fs/cifs/cifsproto.h
index ede010f..a82b3c0 100644
--- a/fs/cifs/cifsproto.h
+++ b/fs/cifs/cifsproto.h
@@ -118,6 +118,8 @@
 extern int small_smb_init_no_tc(const int smb_cmd, const int wct,
 				struct cifs_ses *ses,
 				void **request_buf);
+extern enum securityEnum select_sectype(struct TCP_Server_Info *server,
+				enum securityEnum requested);
 extern int CIFS_SessSetup(const unsigned int xid, struct cifs_ses *ses,
 			  const struct nls_table *nls_cp);
 extern struct timespec cifs_NTtimeToUnix(__le64 utc_nanoseconds_since_1601);