hub_data
struct hub_data hub;
&hub_data(node)->h_cpus)
#define MAPPED_KERN_RO_PHYSBASE(n) (hub_data(n)->kern_vars.kv_ro_baseaddr)
#define MAPPED_KERN_RW_PHYSBASE(n) (hub_data(n)->kern_vars.kv_rw_baseaddr)
struct hub_data *hub = hub_data(nasid);
struct hub_data *hub;
hub = hub_data(info->nasid);
kvp = &hub_data(client_nasid)->kern_vars;
cpumask_clear(&hub_data(node)->h_cpus);
sizeof(struct hub_data));