static int __cpuinit topology_cpu_callback(struct notifier_block *nfb,
unsigned long action, void *hcpu)
{
unsigned int cpu = (unsigned long)hcpu;
struct sys_device *sys_dev;
sys_dev = get_cpu_sysdev(cpu);
switch (action) {
case CPU_ONLINE:
topology_add_dev(sys_dev);
break;
case CPU_DEAD:
topology_remove_dev(sys_dev);
break;
}
return NOTIFY_OK;
}
static int topology_cpu_callback(struct notifier_block *nfb,
unsigned long action, void *hcpu)
{
unsigned int cpu = (unsigned long)hcpu;
int rc = 0;
switch (action) {
case CPU_UP_PREPARE:
case CPU_UP_PREPARE_FROZEN:
rc = topology_add_dev(cpu);
break;
case CPU_UP_CANCELED:
case CPU_UP_CANCELED_FROZEN:
case CPU_DEAD:
case CPU_DEAD_FROZEN:
topology_remove_dev(cpu);
break;
}
return notifier_from_errno(rc);
}
