Hi Ding, FYI, the error/warning still remains. tree: https://gitee.com/openeuler/kernel.git openEuler-1.0-LTS head: 54ad6c4559d2bcbb5d7a03050b2f417a326a1ce2 commit: 4a280fac30d27ae2aff096f9f99aa12d50f83426 [1544/1544] ascend: share_pool: support share pool features for ascend platform config: arm64-randconfig-r131-20250401 (https://download.01.org/0day-ci/archive/20250401/202504011702.UDJZ2vxB-lkp@i...) compiler: aarch64-linux-gcc (GCC) 11.5.0 reproduce: (https://download.01.org/0day-ci/archive/20250401/202504011702.UDJZ2vxB-lkp@i...) 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/202504011702.UDJZ2vxB-lkp@intel.com/ All errors (new ones prefixed by >>): mm/share_pool.c:55:5: sparse: sparse: symbol 'enable_mdc_default_group' was not declared. Should it be static? mm/share_pool.c:172:6: sparse: sparse: symbol 'host_svm_sp_enable' was not declared. Should it be static? mm/share_pool.c:1542:21: sparse: sparse: undefined identifier 'huge_ptep_get' mm/share_pool.c:1542:34: sparse: sparse: invalid initializer mm/share_pool.c:2263:24: sparse: sparse: undefined identifier 'hugetlb_alloc_hugepage' mm/share_pool.c:236:28: sparse: sparse: context imbalance in 'spa_dec_usage' - unexpected unlock mm/share_pool.c: In function 'sp_hugetlb_entry': mm/share_pool.c:1542:21: error: implicit declaration of function 'huge_ptep_get' [-Werror=implicit-function-declaration] 1542 | pte_t pte = huge_ptep_get(ptep); | ^~~~~~~~~~~~~ mm/share_pool.c:1542:21: error: invalid initializer mm/share_pool.c: In function 'sp_alloc_pages':

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mm/share_pool.c:2263:24: error: implicit declaration of function 'hugetlb_alloc_hugepage'; did you mean 'vmalloc_hugepage'? [-Werror=implicit-function-declaration] 2263 | return hugetlb_alloc_hugepage(NUMA_NO_NODE, HUGETLB_ALLOC_NONE); | ^~~~~~~~~~~~~~~~~~~~~~ | vmalloc_hugepage mm/share_pool.c:2263:61: error: 'HUGETLB_ALLOC_NONE' undeclared (first use in this function); did you mean 'HUGETLB_ANON_FILE'? 2263 | return hugetlb_alloc_hugepage(NUMA_NO_NODE, HUGETLB_ALLOC_NONE); | ^~~~~~~~~~~~~~~~~~ | HUGETLB_ANON_FILE mm/share_pool.c:2263:61: note: each undeclared identifier is reported only once for each function it appears in mm/share_pool.c:2266:1: warning: control reaches end of non-void function [-Wreturn-type] 2266 | } | ^ cc1: some warnings being treated as errors

sparse warnings: (new ones prefixed by >>) mm/share_pool.c:55:5: sparse: sparse: symbol 'enable_mdc_default_group' was not declared. Should it be static? mm/share_pool.c:172:6: sparse: sparse: symbol 'host_svm_sp_enable' was not declared. Should it be static? mm/share_pool.c:1542:21: sparse: sparse: undefined identifier 'huge_ptep_get'

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mm/share_pool.c:1542:34: sparse: sparse: invalid initializer mm/share_pool.c:2263:24: sparse: sparse: undefined identifier 'hugetlb_alloc_hugepage' mm/share_pool.c:236:28: sparse: sparse: context imbalance in 'spa_dec_usage' - unexpected unlock mm/share_pool.c: In function 'sp_hugetlb_entry': mm/share_pool.c:1542:21: error: implicit declaration of function 'huge_ptep_get' [-Werror=implicit-function-declaration] 1542 | pte_t pte = huge_ptep_get(ptep); | ^~~~~~~~~~~~~ mm/share_pool.c:1542:21: error: invalid initializer mm/share_pool.c: In function 'sp_alloc_pages': mm/share_pool.c:2263:24: error: implicit declaration of function 'hugetlb_alloc_hugepage'; did you mean 'vmalloc_hugepage'? [-Werror=implicit-function-declaration] 2263 | return hugetlb_alloc_hugepage(NUMA_NO_NODE, HUGETLB_ALLOC_NONE); | ^~~~~~~~~~~~~~~~~~~~~~ | vmalloc_hugepage mm/share_pool.c:2263:61: error: 'HUGETLB_ALLOC_NONE' undeclared (first use in this function); did you mean 'HUGETLB_ANON_FILE'? 2263 | return hugetlb_alloc_hugepage(NUMA_NO_NODE, HUGETLB_ALLOC_NONE); | ^~~~~~~~~~~~~~~~~~ | HUGETLB_ANON_FILE mm/share_pool.c:2263:61: note: each undeclared identifier is reported only once for each function it appears in mm/share_pool.c:2266:1: warning: control reaches end of non-void function [-Wreturn-type] 2266 | } | ^ cc1: some warnings being treated as errors

vim +2263 mm/share_pool.c 2257 2258 2259 struct page *sp_alloc_pages(struct vm_struct *area, gfp_t mask, 2260 unsigned int page_order, int node) 2261 { 2262 if (area->flags & VM_HUGE_PAGES)

2263 return hugetlb_alloc_hugepage(NUMA_NO_NODE, HUGETLB_ALLOC_NONE); 2264 else 2265 return alloc_pages_node(node, mask, page_order); 2266 } 2267

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