NETLBL_CATMAP_MAPSIZE
#define NETLBL_CATMAP_SIZE (NETLBL_CATMAP_MAPSIZE * \
idx = offset / NETLBL_CATMAP_MAPSIZE;
bit = offset % NETLBL_CATMAP_MAPSIZE;
(NETLBL_CATMAP_MAPSIZE * idx) + bit;
idx = offset / NETLBL_CATMAP_MAPSIZE;
bit = offset % NETLBL_CATMAP_MAPSIZE;
(NETLBL_CATMAP_MAPSIZE * idx) + bit - 1;
idx = off / NETLBL_CATMAP_MAPSIZE;
*bitmap = iter->bitmap[idx] >> (off % NETLBL_CATMAP_MAPSIZE);
idx = bit / NETLBL_CATMAP_MAPSIZE;
iter->bitmap[idx] |= NETLBL_CATMAP_BIT << (bit % NETLBL_CATMAP_MAPSIZE);
idx = offset / NETLBL_CATMAP_MAPSIZE;
<< (offset % NETLBL_CATMAP_MAPSIZE);