[android-common:android16-6.12-2025-06 0/9] mm/huge_memory.c:587:43: sparse: sparse: incorrect type in initializer (different address spaces)

[android-common:android16-6.12-2025-06 0/9] mm/huge_memory.c:587:43: sparse: sparse: incorrect type in initializer (different address spaces)

[kernel test robot]

tree:   https://android.googlesource.com/kernel/common android16-6.12-2025-06
head:   13ff069897df965d9039dca208b2f39dacf81957
commit: 5b8452920e50ad7219983ebbf26c8eda1110d283 [0/9] ANDROID: mm: Export several symbols
config: x86_64-randconfig-123 (https://download.01.org/0day-ci/archive/20260701/202607010457.MrHSOxYe-lkp@intel.com/config)
compiler: gcc-14 (Debian 14.2.0-19) 14.2.0
sparse: v0.6.5-rc1
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260701/202607010457.MrHSOxYe-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/202607010457.MrHSOxYe-lkp@intel.com/

sparse warnings: (new ones prefixed by >>)
>> mm/huge_memory.c:587:43: sparse: sparse: incorrect type in initializer (different address spaces) @@     expected void const [noderef] __percpu *__vpp_verify @@     got struct mthp_stat * @@
   mm/huge_memory.c:587:43: sparse:     expected void const [noderef] __percpu *__vpp_verify
   mm/huge_memory.c:587:43: sparse:     got struct mthp_stat *
   mm/huge_memory.c:2033:20: sparse: sparse: context imbalance in 'madvise_free_huge_pmd' - unexpected unlock
   mm/huge_memory.c:2071:28: sparse: sparse: context imbalance in 'zap_huge_pmd' - unexpected unlock
   mm/huge_memory.c:2194:28: sparse: sparse: context imbalance in 'move_huge_pmd' - unexpected unlock
   mm/huge_memory.c:2334:20: sparse: sparse: context imbalance in 'change_huge_pmd' - unexpected unlock
   mm/huge_memory.c: note: in included file (through include/linux/pgtable.h, include/linux/mm.h):
   arch/x86/include/asm/pgtable.h:898:9: sparse: sparse: context imbalance in 'change_huge_pud' - unexpected unlock
   mm/huge_memory.c:2416:28: sparse: sparse: context imbalance in 'move_pages_huge_pmd' - unexpected unlock
   mm/huge_memory.c:2531:12: sparse: sparse: context imbalance in '__pmd_trans_huge_lock' - wrong count at exit
   mm/huge_memory.c:2549:12: sparse: sparse: context imbalance in '__pud_trans_huge_lock' - wrong count at exit
   mm/huge_memory.c:2575:28: sparse: sparse: context imbalance in 'zap_huge_pud' - unexpected unlock
   mm/huge_memory.c: note: in included file (through include/linux/rbtree.h, include/linux/mm_types.h, include/linux/mmzone.h, include/linux/gfp.h, ...):
   include/linux/rcupdate.h:880:25: sparse: sparse: context imbalance in '__split_huge_zero_page_pmd' - unexpected unlock
   include/linux/rcupdate.h:880:25: sparse: sparse: context imbalance in '__split_huge_pmd_locked' - unexpected unlock
   mm/huge_memory.c:3266:30: sparse: sparse: context imbalance in '__split_huge_page' - unexpected unlock
   mm/huge_memory.c:3569:17: sparse: sparse: context imbalance in 'split_huge_page_to_list_to_order' - different lock contexts for basic block
   mm/huge_memory.c:4007:17: sparse: sparse: context imbalance in 'split_huge_pages_pid' - unexpected unlock

vim +587 mm/huge_memory.c

ec33687c674934 Barry Song 2024-04-12  580  
ec33687c674934 Barry Song 2024-04-12  581  static unsigned long sum_mthp_stat(int order, enum mthp_stat_item item)
ec33687c674934 Barry Song 2024-04-12  582  {
ec33687c674934 Barry Song 2024-04-12  583  	unsigned long sum = 0;
ec33687c674934 Barry Song 2024-04-12  584  	int cpu;
ec33687c674934 Barry Song 2024-04-12  585  
ec33687c674934 Barry Song 2024-04-12  586  	for_each_possible_cpu(cpu) {
ec33687c674934 Barry Song 2024-04-12 @587  		struct mthp_stat *this = &per_cpu(mthp_stats, cpu);
ec33687c674934 Barry Song 2024-04-12  588  
ec33687c674934 Barry Song 2024-04-12  589  		sum += this->stats[order][item];
ec33687c674934 Barry Song 2024-04-12  590  	}
ec33687c674934 Barry Song 2024-04-12  591  
ec33687c674934 Barry Song 2024-04-12  592  	return sum;
ec33687c674934 Barry Song 2024-04-12  593  }
ec33687c674934 Barry Song 2024-04-12  594  

:::::: The code at line 587 was first introduced by commit
:::::: ec33687c674934dfefd782a8ffd58370b080b503 mm: add per-order mTHP anon_fault_alloc and anon_fault_fallback counters

:::::: TO: Barry Song <v-songbaohua@oppo.com>
:::::: CC: Andrew Morton <akpm@linux-foundation.org>

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