CLASS_ATTR_RO     372 drivers/block/pktcdvd.c static CLASS_ATTR_RO(device_map);
CLASS_ATTR_RO    2026 drivers/block/zram/zram_drv.c static CLASS_ATTR_RO(hot_add);
CLASS_ATTR_RO    1227 drivers/infiniband/core/user_mad.c static CLASS_ATTR_RO(abi_version);
CLASS_ATTR_RO     100 drivers/mtd/ubi/build.c static CLASS_ATTR_RO(version);