tree: https://gitee.com/openeuler/kernel.git openEuler-1.0-LTS head: 07c988f00903b4f0fbf9c31cea24351fbf885b1c commit: 892de178c180d2924ad5f3dcf55baa3b8ab2272d [16562/23271] pid: add pid reserve method for checkpoint and restore config: arm64-randconfig-r112-20240713 (https://download.01.org/0day-ci/archive/20240713/202407131157.Vwc7D5kC-lkp@i...) compiler: aarch64-linux-gcc (GCC) 14.1.0 reproduce: (https://download.01.org/0day-ci/archive/20240713/202407131157.Vwc7D5kC-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/202407131157.Vwc7D5kC-lkp@intel.com/

sparse warnings: (new ones prefixed by >>) mm/pin_mem.c:34:14: sparse: sparse: symbol 'max_pin_pid_num' was not declared. Should it be static? mm/pin_mem.c:35:15: sparse: sparse: symbol 'redirect_space_size' was not declared. Should it be static? mm/pin_mem.c:171:6: sparse: sparse: symbol 'reserve_page_from_buddy' was not declared. Should it be static? mm/pin_mem.c:254:6: sparse: sparse: symbol 'free_user_map_pages' was not declared. Should it be static? mm/pin_mem.c:311:6: sparse: sparse: symbol 'check_redirect_end_valid' was not declared. Should it be static? mm/pin_mem.c:392:5: sparse: sparse: symbol 'calculate_pin_mem_digest' was not declared. Should it be static? mm/pin_mem.c:481:5: sparse: sparse: symbol 'collect_pmd_huge_pages' was not declared. Should it be static? mm/pin_mem.c:544:5: sparse: sparse: symbol 'collect_normal_pages' was not declared. Should it be static? mm/pin_mem.c:610:6: sparse: sparse: symbol 'free_pin_pages' was not declared. Should it be static? mm/pin_mem.c:770:12: sparse: sparse: symbol 'remap_normal_pages' was not declared. Should it be static? mm/pin_mem.c:857:12: sparse: sparse: symbol 'remap_huge_pmd_pages' was not declared. Should it be static?

...

mm/pin_mem.c:1075:12: sparse: sparse: symbol 'reserve_idr' was not declared. Should it be static?

mm/pin_mem.c:844:63: sparse: sparse: not addressable mm/pin_mem.c:846:63: sparse: sparse: not addressable mm/pin_mem.c:848:71: sparse: sparse: not addressable mm/pin_mem.c:851:65: sparse: sparse: not addressable mm/pin_mem.c:171:6: warning: no previous prototype for 'reserve_page_from_buddy' [-Wmissing-prototypes] 171 | void reserve_page_from_buddy(unsigned long nr_pages, struct page *page) | ^~~~~~~~~~~~~~~~~~~~~~~ mm/pin_mem.c:254:6: warning: no previous prototype for 'free_user_map_pages' [-Wmissing-prototypes] 254 | void free_user_map_pages(unsigned int pid_index, unsigned int entry_index, unsigned int page_index) | ^~~~~~~~~~~~~~~~~~~ mm/pin_mem.c:311:6: warning: no previous prototype for 'check_redirect_end_valid' [-Wmissing-prototypes] 311 | bool check_redirect_end_valid(struct redirect_info *redirect_start, | ^~~~~~~~~~~~~~~~~~~~~~~~ mm/pin_mem.c:392:5: warning: no previous prototype for 'calculate_pin_mem_digest' [-Wmissing-prototypes] 392 | int calculate_pin_mem_digest(struct pin_mem_dump_info *pmdi, char *digest) | ^~~~~~~~~~~~~~~~~~~~~~~~ mm/pin_mem.c:481:5: warning: no previous prototype for 'collect_pmd_huge_pages' [-Wmissing-prototypes] 481 | int collect_pmd_huge_pages(struct task_struct *task, | ^~~~~~~~~~~~~~~~~~~~~~ mm/pin_mem.c:544:5: warning: no previous prototype for 'collect_normal_pages' [-Wmissing-prototypes] 544 | int collect_normal_pages(struct task_struct *task, | ^~~~~~~~~~~~~~~~~~~~ mm/pin_mem.c: In function 'collect_normal_pages': mm/pin_mem.c:549:26: warning: variable 'nr_pages' set but not used [-Wunused-but-set-variable] 549 | unsigned long i, nr_pages; | ^~~~~~~~ mm/pin_mem.c: At top level: mm/pin_mem.c:610:6: warning: no previous prototype for 'free_pin_pages' [-Wmissing-prototypes] 610 | void free_pin_pages(struct page_map_entry *pme) | ^~~~~~~~~~~~~~ mm/pin_mem.c:770:12: warning: no previous prototype for 'remap_normal_pages' [-Wmissing-prototypes] 770 | vm_fault_t remap_normal_pages(struct mm_struct *mm, struct vm_area_struct *vma, | ^~~~~~~~~~~~~~~~~~ mm/pin_mem.c: In function 'get_hugepage_gfpmask': mm/pin_mem.c:844:63: error: lvalue required as unary '&' operand 844 | if (test_bit(TRANSPARENT_HUGEPAGE_DEFRAG_DIRECT_FLAG, &transparent_hugepage_flags)) | ^ mm/pin_mem.c:846:63: error: lvalue required as unary '&' operand 846 | if (test_bit(TRANSPARENT_HUGEPAGE_DEFRAG_KSWAPD_FLAG, &transparent_hugepage_flags)) | ^ mm/pin_mem.c:848:71: error: lvalue required as unary '&' operand 848 | if (test_bit(TRANSPARENT_HUGEPAGE_DEFRAG_KSWAPD_OR_MADV_FLAG, &transparent_hugepage_flags)) | ^ mm/pin_mem.c:851:65: error: lvalue required as unary '&' operand 851 | if (test_bit(TRANSPARENT_HUGEPAGE_DEFRAG_REQ_MADV_FLAG, &transparent_hugepage_flags)) | ^ mm/pin_mem.c: At top level: mm/pin_mem.c:857:12: warning: no previous prototype for 'remap_huge_pmd_pages' [-Wmissing-prototypes] 857 | vm_fault_t remap_huge_pmd_pages(struct mm_struct *mm, struct vm_area_struct *vma, | ^~~~~~~~~~~~~~~~~~~~

vim +/reserve_idr +1075 mm/pin_mem.c

1073 1074 #ifdef CONFIG_PID_RESERVE

1075 struct idr *reserve_idr;

1076