-int virtex2_register_commands(struct command_context_s *cmd_ctx);
-int virtex2_pld_device_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc, struct pld_device_s *pld_device);
-int virtex2_load(struct pld_device_s *pld_device, char *filename);
+static int virtex2_register_commands(struct command_context_s *cmd_ctx);
+static int virtex2_pld_device_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc, struct pld_device_s *pld_device);
+static int virtex2_load(struct pld_device_s *pld_device, char *filename);