Re: [PATCH] arm64: irq: set the correct node for VMAP stack

[kernel test robot]

Hi Huang,

kernel test robot noticed the following build errors:

[auto build test ERROR on arm64/for-next/core]
[also build test ERROR on driver-core/driver-core-testing driver-core/driver-core-next driver-core/driver-core-linus arnd-asm-generic/master linus/master v6.7-rc1 next-20231115]
[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/arm64-irq-set-the-correct-node-for-VMAP-stack/20231114-171932
base:   https://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-next/core
patch link:    https://lore.kernel.org/r/20231114091643.59530-1-shijie%40os.amperecomputing.com
patch subject: [PATCH] arm64: irq: set the correct node for VMAP stack
config: arm64-randconfig-001-20231115 (https://download.01.org/0day-ci/archive/20231115/202311152250.ozO781vZ-lkp@xxxxxxxxx/config)
compiler: aarch64-linux-gcc (GCC) 13.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231115/202311152250.ozO781vZ-lkp@xxxxxxxxx/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@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-kbuild-all/202311152250.ozO781vZ-lkp@xxxxxxxxx/

All errors (new ones prefixed by >>):

   arch/arm64/kernel/irq.c: In function 'init_irq_stacks':
>> arch/arm64/kernel/irq.c:60:59: error: implicit declaration of function 'early_cpu_to_node'; did you mean 'early_pfn_to_nid'? [-Werror=implicit-function-declaration]
      60 |                 p = arch_alloc_vmap_stack(IRQ_STACK_SIZE, early_cpu_to_node(cpu));
         |                                                           ^~~~~~~~~~~~~~~~~
         |                                                           early_pfn_to_nid
   cc1: some warnings being treated as errors


vim +60 arch/arm64/kernel/irq.c

    52	
    53	#ifdef CONFIG_VMAP_STACK
    54	static void init_irq_stacks(void)
    55	{
    56		int cpu;
    57		unsigned long *p;
    58	
    59		for_each_possible_cpu(cpu) {
  > 60			p = arch_alloc_vmap_stack(IRQ_STACK_SIZE, early_cpu_to_node(cpu));
    61			per_cpu(irq_stack_ptr, cpu) = p;
    62		}
    63	}
    64	#else
    65	/* irq stack only needs to be 16 byte aligned - not IRQ_STACK_SIZE aligned. */
    66	DEFINE_PER_CPU_ALIGNED(unsigned long [IRQ_STACK_SIZE/sizeof(long)], irq_stack);
    67	

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