-int gmnal_cb_send_pages(lib_nal_t *, void *, lib_msg_t *, ptl_hdr_t *,
- int, ptl_nid_t, ptl_pid_t, unsigned int, ptl_kiov_t *, size_t);
+ptl_err_t gmnal_cb_send_pages(lib_nal_t *, void *, lib_msg_t *, ptl_hdr_t *,
+ int, ptl_nid_t, ptl_pid_t, unsigned int, ptl_kiov_t *, size_t, size_t);