[PATCH] init: refactor the generic cpu_to_node for NUMA

[kernel test robot]

Hi Huang,

kernel test robot noticed the following build errors:

[auto build test ERROR on driver-core/driver-core-testing]
[also build test ERROR on driver-core/driver-core-next driver-core/driver-core-linus linus/master v6.8-rc1 next-20240125]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Huang-Shijie/init-refactor-the-generic-cpu_to_node-for-NUMA/20240118-111802
base:   driver-core/driver-core-testing
patch link:    https://lore.kernel.org/r/20240118031412.3300-1-shijie%40os.amperecomputing.com
patch subject: [PATCH] init: refactor the generic cpu_to_node for NUMA
config: x86_64-kexec (https://download.01.org/0day-ci/archive/20240129/202401290316.0eu1Mue2-lkp@intel.com/config)
compiler: gcc-12 (Debian 12.2.0-14) 12.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240129/202401290316.0eu1Mue2-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp at intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202401290316.0eu1Mue2-lkp@intel.com/

All errors (new ones prefixed by >>):

   ld: vmlinux.o: in function `amd_pmu_cpu_prepare':
>> arch/x86/events/amd/core.c:549: undefined reference to `cpu_to_node'
   ld: vmlinux.o: in function `amd_alloc_nb':
   arch/x86/events/amd/core.c:507: undefined reference to `cpu_to_node'
   ld: vmlinux.o: in function `amd_uncore_ctx_init':
>> arch/x86/events/amd/uncore.c:476: undefined reference to `cpu_to_node'
   ld: vmlinux.o: in function `allocate_shared_regs':
>> arch/x86/events/intel/core.c:4520: undefined reference to `cpu_to_node'
   ld: vmlinux.o: in function `intel_cpuc_prepare':
   arch/x86/events/intel/core.c:4561: undefined reference to `cpu_to_node'
   ld: vmlinux.o:arch/x86/events/intel/core.c:4538: more undefined references to `cpu_to_node' follow
   ld: vmlinux.o: in function `smp_prepare_cpus_done':
>> init/main.c:1542: undefined reference to `_cpu_to_node'
   ld: vmlinux.o: in function `check_timer':
>> arch/x86/kernel/apic/io_apic.c:2169: undefined reference to `cpu_to_node'
   ld: vmlinux.o: in function `kvm_alloc_cpumask':
>> arch/x86/kernel/kvm.c:687: undefined reference to `cpu_to_node'
   ld: vmlinux.o: in function `fork_idle':
>> kernel/fork.c:2826: undefined reference to `cpu_to_node'
   ld: vmlinux.o: in function `cpus_share_numa':
>> kernel/workqueue.c:6768: undefined reference to `cpu_to_node'
>> ld: kernel/workqueue.c:6768: undefined reference to `cpu_to_node'
   ld: vmlinux.o:kernel/workqueue.c:6748: more undefined references to `cpu_to_node' follow


vim +549 arch/x86/events/amd/core.c

21d59e3e2c403c arch/x86/events/amd/core.c           Sandipan Das    2022-04-21  544  
b38b24ead33417 arch/x86/kernel/cpu/perf_event_amd.c Peter Zijlstra  2010-03-23  545  static int amd_pmu_cpu_prepare(int cpu)
b38b24ead33417 arch/x86/kernel/cpu/perf_event_amd.c Peter Zijlstra  2010-03-23  546  {
b38b24ead33417 arch/x86/kernel/cpu/perf_event_amd.c Peter Zijlstra  2010-03-23  547  	struct cpu_hw_events *cpuc = &per_cpu(cpu_hw_events, cpu);
b38b24ead33417 arch/x86/kernel/cpu/perf_event_amd.c Peter Zijlstra  2010-03-23  548  
f4f925dae7419f arch/x86/events/amd/core.c           Sandipan Das    2022-08-11 @549  	cpuc->lbr_sel = kzalloc_node(sizeof(struct er_account), GFP_KERNEL,
f4f925dae7419f arch/x86/events/amd/core.c           Sandipan Das    2022-08-11  550  				     cpu_to_node(cpu));
f4f925dae7419f arch/x86/events/amd/core.c           Sandipan Das    2022-08-11  551  	if (!cpuc->lbr_sel)
f4f925dae7419f arch/x86/events/amd/core.c           Sandipan Das    2022-08-11  552  		return -ENOMEM;
f4f925dae7419f arch/x86/events/amd/core.c           Sandipan Das    2022-08-11  553  
b38b24ead33417 arch/x86/kernel/cpu/perf_event_amd.c Peter Zijlstra  2010-03-23  554  	WARN_ON_ONCE(cpuc->amd_nb);
b38b24ead33417 arch/x86/kernel/cpu/perf_event_amd.c Peter Zijlstra  2010-03-23  555  
32b62f446827f6 arch/x86/events/amd/core.c           Peter Zijlstra  2016-03-25  556  	if (!x86_pmu.amd_nb_constraints)
95ca792c7582fd arch/x86/events/amd/core.c           Thomas Gleixner 2016-07-13  557  		return 0;
b38b24ead33417 arch/x86/kernel/cpu/perf_event_amd.c Peter Zijlstra  2010-03-23  558  
c079c791c5a062 arch/x86/kernel/cpu/perf_event_amd.c Peter Zijlstra  2010-11-25  559  	cpuc->amd_nb = amd_alloc_nb(cpu);
f4f925dae7419f arch/x86/events/amd/core.c           Sandipan Das    2022-08-11  560  	if (cpuc->amd_nb)
95ca792c7582fd arch/x86/events/amd/core.c           Thomas Gleixner 2016-07-13  561  		return 0;
f4f925dae7419f arch/x86/events/amd/core.c           Sandipan Das    2022-08-11  562  
f4f925dae7419f arch/x86/events/amd/core.c           Sandipan Das    2022-08-11  563  	kfree(cpuc->lbr_sel);
f4f925dae7419f arch/x86/events/amd/core.c           Sandipan Das    2022-08-11  564  	cpuc->lbr_sel = NULL;
f4f925dae7419f arch/x86/events/amd/core.c           Sandipan Das    2022-08-11  565  
f4f925dae7419f arch/x86/events/amd/core.c           Sandipan Das    2022-08-11  566  	return -ENOMEM;
b38b24ead33417 arch/x86/kernel/cpu/perf_event_amd.c Peter Zijlstra  2010-03-23  567  }
b38b24ead33417 arch/x86/kernel/cpu/perf_event_amd.c Peter Zijlstra  2010-03-23  568  

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