When running ./tools/testing/kunit/kunit.py run,the error for mm/swap.h is as follows: ERROR:root:In file included from ../mm/shmem.c:43: ../mm/swap.h: In function ‘non_swapcache_batch’: ../mm/swap.h:66:19: error: implicit declaration of function ‘swp_offset’; did you mean ‘pud_offset’? [-Werror=implicit-function-declaration] 66 | pgoff_t offset = swp_offset(entry); | ^~~~~~~~~~ | pud_offset In file included from ../mm/shmem.c:68: ../include/linux/swapops.h: At top level: ../include/linux/swapops.h:107:23: error: conflicting types for ‘swp_offset’ 107 | static inline pgoff_t swp_offset(swp_entry_t entry) | ^~~~~~~~~~ In file included from ../mm/shmem.c:43: ../mm/swap.h:66:19: note: previous implicit declaration of ‘swp_offset’ was here 66 | pgoff_t offset = swp_offset(entry); | ^~~~~~~~~~ cc1: some warnings being treated as errors make[4]: *** [../scripts/Makefile.build:243: mm/shmem.o] Error 1 make[3]: *** [../scripts/Makefile.build:480: mm] Error 2 make[3]: *** Waiting for unfinished jobs.... make[2]: *** [/home/openeuler/kernel/Makefile:1924: .] Error 2 make[1]: *** [/home/openeuler/kernel/Makefile:234: __sub-make] Error 2 make: *** [Makefile:234: __sub-make] Error 2 Signed-off-by: bajing --- mm/swap.h | 1 + 1 file changed, 1 insertion(+) diff --git a/mm/swap.h b/mm/swap.h index 26fa536a8947..04695e1af068 100644 --- a/mm/swap.h +++ b/mm/swap.h @@ -4,6 +4,7 @@ #ifdef CONFIG_SWAP #include /* for bio_end_io_t */ +#include /* linux/mm/page_io.c */ int sio_pool_init(void); -- 2.50.1.windows.1