Hi Bibo, kernel test robot noticed the following build errors: [auto build test ERROR on akpm-mm/mm-everything] [also build test ERROR on linus/master v6.5 next-20230906] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Bibo-Mao/LoongArch-Clear-invalid-tlb-when-set-huge-page-PTE-entry/20230906-013753 base: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything patch link: https://lore.kernel.org/r/20230905044828.1460721-1-maobibo%40loongson.cn patch subject: [PATCH] LoongArch: Clear invalid tlb when set huge page PTE entry config: loongarch-allnoconfig (https://download.01.org/0day-ci/archive/20230906/202309062224.jKf5JY7H-lkp@xxxxxxxxx/config) compiler: loongarch64-linux-gcc (GCC) 13.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20230906/202309062224.jKf5JY7H-lkp@xxxxxxxxx/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@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202309062224.jKf5JY7H-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): >> arch/loongarch/mm/tlb.c:204:6: error: redefinition of 'set_huge_pte_at' 204 | void set_huge_pte_at(struct mm_struct *mm, unsigned long addr, | ^~~~~~~~~~~~~~~ In file included from arch/loongarch/mm/tlb.c:9: include/linux/hugetlb.h:1175:20: note: previous definition of 'set_huge_pte_at' with type 'void(struct mm_struct *, long unsigned int, pte_t *, pte_t)' 1175 | static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr, | ^~~~~~~~~~~~~~~ arch/loongarch/mm/tlb.c: In function 'set_huge_pte_at': >> arch/loongarch/mm/tlb.c:215:29: error: implicit declaration of function 'huge_pte_none'; did you mean 'huge_pte_lock'? [-Werror=implicit-function-declaration] 215 | if (!cpu_has_ptw && huge_pte_none(*ptep)) | ^~~~~~~~~~~~~ | huge_pte_lock arch/loongarch/mm/tlb.c: At top level: arch/loongarch/mm/tlb.c:281:6: warning: no previous prototype for 'setup_tlb_handler' [-Wmissing-prototypes] 281 | void setup_tlb_handler(int cpu) | ^~~~~~~~~~~~~~~~~ cc1: some warnings being treated as errors vim +/set_huge_pte_at +204 arch/loongarch/mm/tlb.c 203 > 204 void set_huge_pte_at(struct mm_struct *mm, unsigned long addr, 205 pte_t *ptep, pte_t pte) 206 { 207 /* 208 * If huge pte entry is none, tlb entry with normal page size is filled 209 * for machines which does not support hardware page walking. 210 * 211 * Thread maybe migrates to other CPUs after page fault happends and 212 * migrates back again after hugepage pte is set, tlbs with normal page 213 * about invalid_pte_table need be flushed 214 */ > 215 if (!cpu_has_ptw && huge_pte_none(*ptep)) 216 flush_tlb_mm(mm); 217 218 set_pte_at(mm, addr, ptep, pte); 219 } 220 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
