INFO_TO_DM_BLOCKS
start = INFO_TO_DM_BLOCKS(info, start);
offset = INFO_TO_DM_BLOCKS(info, offset);
INFO_TO_DM_BLOCKS(info, offset),
start = INFO_TO_DM_BLOCKS(info, offset);
(uint64_t)INFO_TO_DM_BLOCKS(info, skip), dev,
INFO_TO_DM_BLOCKS(info, size), "crypt", params)) == 0) {