mm/memcontrol.c:4865:23: error: implicit declaration of function 'mem_cgroup_nr_lru_pages'; did you mean 'memcg_nr_lru_pages'?

mm/memcontrol.c:4865:23: error: implicit declaration of function 'mem_cgroup_nr_lru_pages'; did you mean 'memcg_nr_lru_pages'?

[kernel test robot]

tree:   https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git linux-5.4/lts/5.4.119-20.0009
head:   3bf5c3f6e32e9cfe13f09bac3ae93b8e39d472c1
commit: 590eaf1fec755215547690e787cc7d83f58ea948 Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.
date:   2 years, 11 months ago
config: x86_64-buildonly-randconfig-003-20240221 (https://download.01.org/0day-ci/archive/20240222/202402220242.P4WDOp6S-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/20240222/202402220242.P4WDOp6S-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/202402220242.P4WDOp6S-lkp@intel.com/

All errors (new ones prefixed by >>):

   In file included from include/linux/page_counter.h:6,
                    from mm/memcontrol.c:25:
   mm/memcontrol.c: In function 'mem_cgroup_get_max':
   include/linux/kernel.h:875:45: warning: comparison of unsigned expression in '< 0' is always false [-Wtype-limits]
     875 | #define min(x, y)       __careful_cmp(x, y, <)
         |                                             ^
   include/linux/kernel.h:858:30: note: in definition of macro '__cmp'
     858 | #define __cmp(x, y, op) ((x) op (y) ? (x) : (y))
         |                              ^~
   include/linux/kernel.h:875:25: note: in expansion of macro '__careful_cmp'
     875 | #define min(x, y)       __careful_cmp(x, y, <)
         |                         ^~~~~~~~~~~~~
   mm/memcontrol.c:1577:28: note: in expansion of macro 'min'
    1577 |                 swap_max = min(swap_max, (unsigned long)total_swap_pages);
         |                            ^~~
   mm/memcontrol.c: In function 'memcg_nr_lru_pages':
>> mm/memcontrol.c:4865:23: error: implicit declaration of function 'mem_cgroup_nr_lru_pages'; did you mean 'memcg_nr_lru_pages'? [-Werror=implicit-function-declaration]
    4865 |                 nr += mem_cgroup_nr_lru_pages(iter, lru_mask);
         |                       ^~~~~~~~~~~~~~~~~~~~~~~
         |                       memcg_nr_lru_pages
   cc1: some warnings being treated as errors


vim +4865 mm/memcontrol.c

  4857	
  4858	static unsigned long memcg_nr_lru_pages(struct mem_cgroup *memcg,
  4859				unsigned int lru_mask)
  4860	{
  4861		unsigned long nr = 0;
  4862		struct mem_cgroup *iter;
  4863	
  4864		for_each_mem_cgroup_tree(iter, memcg)
> 4865			nr += mem_cgroup_nr_lru_pages(iter, lru_mask);
  4866	
  4867		return nr;
  4868	}
  4869	

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