| 023542f48b57 ("relay: allow the use of const callback structs") | |
| 371e03880d9d ("relay: make create_buf_file and remove_buf_file callbacks mandatory") | |
| 6f8f25440d79 ("relay: require non-NULL callbacks in relay_open()") | |
| 3d03295a7e91 ("relay: remove unused buf_mapped and buf_unmapped callbacks") |