cpu_idle_cb_impl_t
cpu_idle_cb_impl_t *impl;
static cpu_idle_cb_impl_t *cpu_idle_cb_busy = NULL;
cpu_idle_insert_callback(cpu_idle_cb_impl_t *cip)
cpu_idle_remove_callback(cpu_idle_cb_impl_t *cip)
cpu_idle_cb_impl_t *cip = NULL;
cpu_idle_cb_impl_t *ip, **ipp;
ip = (cpu_idle_cb_impl_t *)hdl;