topology.c 571 B

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  1. // SPDX-License-Identifier: GPL-2.0
  2. #include <linux/cpu.h>
  3. #include <linux/cpumask.h>
  4. #include <linux/init.h>
  5. #include <linux/node.h>
  6. #include <linux/nodemask.h>
  7. #include <linux/percpu.h>
  8. static DEFINE_PER_CPU(struct cpu, cpu_devices);
  9. static int __init topology_init(void)
  10. {
  11. int i, ret;
  12. for_each_present_cpu(i) {
  13. struct cpu *c = &per_cpu(cpu_devices, i);
  14. c->hotpluggable = !!i;
  15. ret = register_cpu(c, i);
  16. if (ret)
  17. printk(KERN_WARNING "topology_init: register_cpu %d "
  18. "failed (%d)\n", i, ret);
  19. }
  20. return 0;
  21. }
  22. subsys_initcall(topology_init);