[davidhildenbrand:virtio-mem-pg-offline 3/5] mm/mm_init.c:2508:9: error: implicit declaration of function '_free_pages_core'; did you mean '__free_pages_core'?

[kernel test robot <lkp@intel.com>]

tree:   https://github.com/davidhildenbrand/linux virtio-mem-pg-offline
head:   1816cc48b3c54139589a526b6986439600b80180
commit: 4a19cdf655855a47e0b84be7783451da60a7f9e1 [3/5] mm: pass meminit_context to __free_pages_core()
config: parisc-allnoconfig (https://download.01.org/0day-ci/archive/20240607/202406070022.hbhs2wAc-lkp@intel.com/config)
compiler: hppa-linux-gcc (GCC) 13.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240607/202406070022.hbhs2wAc-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@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202406070022.hbhs2wAc-lkp@intel.com/

All errors (new ones prefixed by >>):

   mm/mm_init.c: In function 'memblock_free_pages':
>> mm/mm_init.c:2508:9: error: implicit declaration of function '_free_pages_core'; did you mean '__free_pages_core'? [-Werror=implicit-function-declaration]
    2508 |         _free_pages_core(page, order, MEMINIT_EARLY);
         |         ^~~~~~~~~~~~~~~~
         |         __free_pages_core
   cc1: some warnings being treated as errors


vim +2508 mm/mm_init.c

  2482	
  2483	void __init memblock_free_pages(struct page *page, unsigned long pfn,
  2484								unsigned int order)
  2485	{
  2486		if (IS_ENABLED(CONFIG_DEFERRED_STRUCT_PAGE_INIT)) {
  2487			int nid = early_pfn_to_nid(pfn);
  2488	
  2489			if (!early_page_initialised(pfn, nid))
  2490				return;
  2491		}
  2492	
  2493		if (!kmsan_memblock_free_pages(page, order)) {
  2494			/* KMSAN will take care of these pages. */
  2495			return;
  2496		}
  2497	
  2498		/* pages were reserved and not allocated */
  2499		if (mem_alloc_profiling_enabled()) {
  2500			union codetag_ref *ref = get_page_tag_ref(page);
  2501	
  2502			if (ref) {
  2503				set_codetag_empty(ref);
  2504				put_page_tag_ref(ref);
  2505			}
  2506		}
  2507	
> 2508		_free_pages_core(page, order, MEMINIT_EARLY);
  2509	}
  2510	

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