radix6_addr_entry
struct radix6_addr_entry *ent;
ent = (struct radix6_addr_entry *)(rn_match(&addr6, &rnh->rh));
struct radix6_addr_entry *ae;
ae = (struct radix6_addr_entry *)((char *)lr->radix_mem + lr->num_items * LRADIX6_ITEM_SZ);
#define LRADIX6_ITEM_SZ roundup2(sizeof(struct radix6_addr_entry), CACHE_LINE_SIZE)