cpu_percpu
printf("&cpu_percpu %p\n", &dp->cpu_percpu); /* TBD */
percpu_cpu_t * const pcc = cpu_percpu(ci);
return &((char *)cpu_percpu(ci)->pcc_data)[percpu_offset(pc)];
return &ci->ci_data.cpu_percpu;
percpu_cpu_t * const pcc = cpu_percpu(ci);
percpu_cpu_t cpu_percpu; /* per-cpu data */