diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index 96645a7d8f27..267c6f70cf98 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -3029,8 +3029,11 @@ cifs_get_tcon(struct cifs_ses *ses, struct smb_vol *volume_info)
 
 #ifdef CONFIG_CIFS_SMB311
 	if ((volume_info->linux_ext) && (ses->server->posix_ext_supported)) {
-		if (ses->server->vals->protocol_id == SMB311_PROT_ID)
+		if (ses->server->vals->protocol_id == SMB311_PROT_ID) {
 			tcon->posix_extensions = true;
+			printk_once(KERN_WARNING
+				"SMB3.11 POSIX Extensions are experimental\n");
+		}
 	}
 #endif /* 311 */