[anolis-intel-cloud:intel-5.10-GNR-perf-uncore-ANBZ24140 0/2] mm/memory_hotplug.c:982:6: warning: no previous prototype for function '__adjust_present_page_count'

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

Hi Yang,

FYI, the error/warning still remains.

tree:   https://gitee.com/anolis/intel-cloud-kernel.git intel-5.10-GNR-perf-uncore-ANBZ24140
head:   5b97140220e2f9196fa5de48f6be468691f8b43b
commit: 66756394812b1ce3d99fd553b8d496da6a755dce [0/2] anolis: mm/memory_hotplug: refactor adjust_present_page_count()
config: x86_64-rhel-9.4-rust (https://download.01.org/0day-ci/archive/20250825/202508252230.JgQLDkPC-lkp@intel.com/config)
compiler: clang version 22.0.0git (https://github.com/llvm/llvm-project d26ea02060b1c9db751d188b2edb0059a9eb273d)
rustc: rustc 1.58.0 (02072b482 2022-01-11)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250825/202508252230.JgQLDkPC-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/202508252230.JgQLDkPC-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> mm/memory_hotplug.c:982:6: warning: no previous prototype for function '__adjust_present_page_count' [-Wmissing-prototypes]
     982 | void __adjust_present_page_count(struct page *page, struct memory_group *group,
         |      ^
   mm/memory_hotplug.c:982:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
     982 | void __adjust_present_page_count(struct page *page, struct memory_group *group,
         | ^
         | static 
   1 warning generated.


vim +/__adjust_present_page_count +982 mm/memory_hotplug.c

   981	
 > 982	void __adjust_present_page_count(struct page *page, struct memory_group *group,
   983				       long nr_pages, struct zone *zone, int phase)
   984	{
   985		const bool movable = zone_idx(zone) == ZONE_MOVABLE;
   986		unsigned long flags;
   987	
   988		if (phase == MHP_PHASE_DEFAULT || phase == MHP_PHASE_DEFERRED) {
   989			/*
   990			 * We only support onlining/offlining/adding/removing of complete
   991			 * memory blocks; therefore, either all is either early or hotplugged.
   992			 */
   993			if (early_section(__pfn_to_section(page_to_pfn(page))))
   994				zone->present_early_pages += nr_pages;
   995			zone->present_pages += nr_pages;
   996			pgdat_resize_lock(zone->zone_pgdat, &flags);
   997			zone->zone_pgdat->node_present_pages += nr_pages;
   998			pgdat_resize_unlock(zone->zone_pgdat, &flags);
   999		}
  1000	
  1001		if (phase == MHP_PHASE_DEFAULT || phase == MHP_PHASE_PREPARE) {
  1002			if (group && movable)
  1003				group->present_movable_pages += nr_pages;
  1004			else if (group && !movable)
  1005				group->present_kernel_pages += nr_pages;
  1006		}
  1007	}
  1008	

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