#define UDF_VSD_OFFSET 0x8000
-int volume_id_probe_udf(struct volume_id *id, uint64_t off)
+int volume_id_probe_udf(struct volume_id *id /*,uint64_t off*/)
{
+#define off ((uint64_t)0)
struct volume_descriptor *vd;
struct volume_structure_descriptor *vsd;
unsigned bs;