Hi Baolin, I love your patch! Yet something to improve: [auto build test ERROR on akpm-mm/mm-everything] [cannot apply to hnaz-mm/master arm64/for-next/core linus/master v5.18-rc6] [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] url: https://github.com/intel-lab-lkp/linux/commits/Baolin-Wang/Fix-CONT-PTE-PMD-size-hugetlb-issue-when-unmapping-or-migrating/20220510-114753 base: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything config: h8300-buildonly-randconfig-r001-20220509 (https://download.01.org/0day-ci/archive/20220511/202205110919.CWIcIqYE-lkp@xxxxxxxxx/config) compiler: h8300-linux-gcc (GCC) 11.3.0 reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # https://github.com/intel-lab-lkp/linux/commit/b666792b4c5f9774c350977ff88837bafc36365a git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Baolin-Wang/Fix-CONT-PTE-PMD-size-hugetlb-issue-when-unmapping-or-migrating/20220510-114753 git checkout b666792b4c5f9774c350977ff88837bafc36365a # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.3.0 make.cross W=1 O=build_dir ARCH=h8300 SHELL=/bin/bash If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): In file included from kernel/fork.c:51: include/linux/hugetlb.h: In function 'huge_ptep_clear_flush': >> include/linux/hugetlb.h:1100:16: error: implicit declaration of function 'ptep_get' [-Werror=implicit-function-declaration] 1100 | return ptep_get(ptep); | ^~~~~~~~ >> include/linux/hugetlb.h:1100:16: error: incompatible types when returning type 'int' but 'pte_t' was expected 1100 | return ptep_get(ptep); | ^~~~~~~~~~~~~~ kernel/fork.c: At top level: kernel/fork.c:162:13: warning: no previous prototype for 'arch_release_task_struct' [-Wmissing-prototypes] 162 | void __weak arch_release_task_struct(struct task_struct *tsk) | ^~~~~~~~~~~~~~~~~~~~~~~~ kernel/fork.c:847:20: warning: no previous prototype for 'arch_task_cache_init' [-Wmissing-prototypes] 847 | void __init __weak arch_task_cache_init(void) { } | ^~~~~~~~~~~~~~~~~~~~ kernel/fork.c:942:12: warning: no previous prototype for 'arch_dup_task_struct' [-Wmissing-prototypes] 942 | int __weak arch_dup_task_struct(struct task_struct *dst, | ^~~~~~~~~~~~~~~~~~~~ cc1: some warnings being treated as errors -- In file included from kernel/sysctl.c:46: include/linux/hugetlb.h: In function 'huge_ptep_clear_flush': >> include/linux/hugetlb.h:1100:16: error: implicit declaration of function 'ptep_get' [-Werror=implicit-function-declaration] 1100 | return ptep_get(ptep); | ^~~~~~~~ >> include/linux/hugetlb.h:1100:16: error: incompatible types when returning type 'int' but 'pte_t' was expected 1100 | return ptep_get(ptep); | ^~~~~~~~~~~~~~ cc1: some warnings being treated as errors -- In file included from include/linux/migrate.h:8, from mm/page_alloc.c:62: include/linux/hugetlb.h: In function 'huge_ptep_clear_flush': >> include/linux/hugetlb.h:1100:16: error: implicit declaration of function 'ptep_get' [-Werror=implicit-function-declaration] 1100 | return ptep_get(ptep); | ^~~~~~~~ >> include/linux/hugetlb.h:1100:16: error: incompatible types when returning type 'int' but 'pte_t' was expected 1100 | return ptep_get(ptep); | ^~~~~~~~~~~~~~ In file included from include/asm-generic/bug.h:5, from arch/h8300/include/asm/bug.h:8, from include/linux/bug.h:5, from include/linux/mmdebug.h:5, from include/linux/mm.h:6, from mm/page_alloc.c:19: mm/page_alloc.c: In function 'free_pages': include/asm-generic/page.h:89:51: warning: ordered comparison of pointer with null pointer [-Wextra] 89 | #define virt_addr_valid(kaddr) (((void *)(kaddr) >= (void *)PAGE_OFFSET) && \ | ^~ include/linux/compiler.h:78:45: note: in definition of macro 'unlikely' 78 | # define unlikely(x) __builtin_expect(!!(x), 0) | ^ include/linux/mmdebug.h:17:25: note: in expansion of macro 'BUG_ON' 17 | #define VM_BUG_ON(cond) BUG_ON(cond) | ^~~~~~ mm/page_alloc.c:5489:17: note: in expansion of macro 'VM_BUG_ON' 5489 | VM_BUG_ON(!virt_addr_valid((void *)addr)); | ^~~~~~~~~ mm/page_alloc.c:5489:28: note: in expansion of macro 'virt_addr_valid' 5489 | VM_BUG_ON(!virt_addr_valid((void *)addr)); | ^~~~~~~~~~~~~~~ cc1: some warnings being treated as errors -- In file included from fs/io_uring.c:71: include/linux/hugetlb.h: In function 'huge_ptep_clear_flush': >> include/linux/hugetlb.h:1100:16: error: implicit declaration of function 'ptep_get' [-Werror=implicit-function-declaration] 1100 | return ptep_get(ptep); | ^~~~~~~~ >> include/linux/hugetlb.h:1100:16: error: incompatible types when returning type 'int' but 'pte_t' was expected 1100 | return ptep_get(ptep); | ^~~~~~~~~~~~~~ fs/io_uring.c: In function '__io_submit_flush_completions': fs/io_uring.c:2660:40: warning: variable 'prev' set but not used [-Wunused-but-set-variable] 2660 | struct io_wq_work_node *node, *prev; | ^~~~ cc1: some warnings being treated as errors vim +/ptep_get +1100 include/linux/hugetlb.h 1096 1097 static inline pte_t huge_ptep_clear_flush(struct vm_area_struct *vma, 1098 unsigned long addr, pte_t *ptep) 1099 { > 1100 return ptep_get(ptep); 1101 } 1102 -- 0-DAY CI Kernel Test Service https://01.org/lkp
