tree: https://gitee.com/openeuler/kernel.git openEuler-1.0-LTS head: 22c50245e8025b0c6beee13d0df238987b98e6f8 commit: 2875d85b7ff5a4f1350595c92305314f0ac07657 [8428/23866] arm64: Add CPU hotplug support config: arm64-randconfig-002-20241026 (https://download.01.org/0day-ci/archive/20241027/202410270248.Ne5SK2Qt-lkp@i...) compiler: aarch64-linux-gcc (GCC) 14.1.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241027/202410270248.Ne5SK2Qt-lkp@i...) 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@intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202410270248.Ne5SK2Qt-lkp@intel.com/ All warnings (new ones prefixed by >>):

...

arch/arm64/kernel/acpi.c:266:5: warning: no previous prototype for 'acpi_map_cpu' [-Wmissing-prototypes] 266 | int acpi_map_cpu(acpi_handle handle, phys_cpuid_t physid, u32 acpi_id, | ^~~~~~~~~~~~ arch/arm64/kernel/acpi.c: In function 'acpi_map_cpu': arch/arm64/kernel/acpi.c:275:17: error: implicit declaration of function 'numa_add_cpu'; did you mean 'be64_add_cpu'? [-Werror=implicit-function-declaration] 275 | numa_add_cpu(cpu); | ^~~~~~~~~~~~ | be64_add_cpu arch/arm64/kernel/acpi.c: At top level: arch/arm64/kernel/acpi.c:285:5: warning: no previous prototype for 'acpi_unmap_cpu' [-Wmissing-prototypes] 285 | int acpi_unmap_cpu(int cpu) | ^~~~~~~~~~~~~~ arch/arm64/kernel/acpi.c: In function 'acpi_unmap_cpu': arch/arm64/kernel/acpi.c:288:9: error: implicit declaration of function 'numa_clear_node' [-Werror=implicit-function-declaration] 288 | numa_clear_node(cpu); | ^~~~~~~~~~~~~~~ cc1: some warnings being treated as errors

vim +/acpi_map_cpu +266 arch/arm64/kernel/acpi.c 265

266 int acpi_map_cpu(acpi_handle handle, phys_cpuid_t physid, u32 acpi_id, 267 int *pcpu) 268 { 269 int cpu, nid; 270 271 cpu = acpi_map_cpuid(physid, acpi_id); 272 nid = acpi_get_node(handle); 273 if (nid != NUMA_NO_NODE) { 274 set_cpu_numa_node(cpu, nid); 275 numa_add_cpu(cpu); 276 } 277 278 *pcpu = cpu; 279 set_cpu_present(cpu, true); 280 281 return 0; 282 } 283 EXPORT_SYMBOL(acpi_map_cpu); 284 285 int acpi_unmap_cpu(int cpu)

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