Hi Kefeng, kernel test robot noticed the following build errors: [auto build test ERROR on next-20230821] [cannot apply to akpm-mm/mm-everything arm64/for-next/core tip/x86/mm s390/features powerpc/next powerpc/fixes arm/for-next arm/fixes linus/master v6.5-rc7 v6.5-rc6 v6.5-rc5 v6.5-rc7] [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/Kefeng-Wang/mm-add-a-generic-VMA-lock-based-page-fault-handler/20230821-203442 base: next-20230821 patch link: https://lore.kernel.org/r/20230821123056.2109942-2-wangkefeng.wang%40huawei.com patch subject: [PATCH rfc v2 01/10] mm: add a generic VMA lock-based page fault handler config: i386-tinyconfig (https://download.01.org/0day-ci/archive/20230821/202308212249.dZG3d55u-lkp@xxxxxxxxx/config) compiler: gcc-12 (Debian 12.2.0-14) 12.2.0 reproduce: (https://download.01.org/0day-ci/archive/20230821/202308212249.dZG3d55u-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/202308212249.dZG3d55u-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): In file included from include/linux/memcontrol.h:20, from include/linux/swap.h:9, from include/linux/suspend.h:5, from arch/x86/kernel/asm-offsets.c:14: >> include/linux/mm.h:810:38: error: redefinition of 'lock_vma_under_rcu' 810 | static inline struct vm_area_struct *lock_vma_under_rcu(struct mm_struct *mm, | ^~~~~~~~~~~~~~~~~~ include/linux/mm.h:794:38: note: previous definition of 'lock_vma_under_rcu' with type 'struct vm_area_struct *(struct mm_struct *, long unsigned int)' 794 | static inline struct vm_area_struct *lock_vma_under_rcu(struct mm_struct *mm, | ^~~~~~~~~~~~~~~~~~ make[3]: *** [scripts/Makefile.build:116: arch/x86/kernel/asm-offsets.s] Error 1 make[3]: Target 'prepare' not remade because of errors. make[2]: *** [Makefile:1203: prepare0] Error 2 make[2]: Target 'prepare' not remade because of errors. make[1]: *** [Makefile:234: __sub-make] Error 2 make[1]: Target 'prepare' not remade because of errors. make: *** [Makefile:234: __sub-make] Error 2 make: Target 'prepare' not remade because of errors. vim +/lock_vma_under_rcu +810 include/linux/mm.h 809 > 810 static inline struct vm_area_struct *lock_vma_under_rcu(struct mm_struct *mm, 811 unsigned long address) 812 { 813 return NULL; 814 } 815 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
