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cdrom_open_write() into a new exported helper, > cdrom_probe_write_features(), and having sr call it from sr_probe() > right after get_capabilities() has populated the MODE SENSE bits. > register_cdrom() then calls set_disk_ro() based on the full > write-capability mask (CDC_DVD_RAM | CDC_MRW_W | CDC_RAM | CDC_CD_RW) > so the block layer reflects the drive's actual write support. LGTM. Reviewed-by: Martin K. Petersen -- Martin K. Petersen