Hi "Aneesh, [FYI, it's a private test report for your RFC patch.] [auto build test WARNING on arm64/for-next/core] [also build test WARNING on linus/master v5.15-rc6] [cannot apply to hnaz-mm/master tip/x86/asm next-20211020] [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/0day-ci/linux/commits/Aneesh-Kumar-K-V/mm-mempolicy-us... base: https://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-next/core config: arm64-randconfig-r033-20211019 (attached as .config) compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 9660563950aaed54020bfdf0be07e7096a9553e4) 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 # install arm64 cross compiling tool for clang build # apt-get install binutils-aarch64-linux-gnu # https://github.com/0day-ci/linux/commit/10f30e8157782f17ae682c2bbca95c226... git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Aneesh-Kumar-K-V/mm-mempolicy-use-policy_node-helper-with-MPOL_PREFERRED_MANY/20211020-172721 git checkout 10f30e8157782f17ae682c2bbca95c226af3612a # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 ARCH=arm64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>): asmlinkage long __weak __arm64_sys_##name(const struct pt_regs *regs) \ ^ <scratch space>:60:1: note: expanded from here __arm64_sys_process_madvise ^ kernel/sys_ni.c:291:1: note: declare 'static' if the function is not intended to be used outside of this translation unit arch/arm64/include/asm/syscall_wrapper.h:76:13: note: expanded from macro 'COND_SYSCALL' asmlinkage long __weak __arm64_sys_##name(const struct pt_regs *regs) \ ^ kernel/sys_ni.c:292:1: warning: no previous prototype for function '__arm64_sys_process_mrelease' [-Wmissing-prototypes] COND_SYSCALL(process_mrelease); ^ arch/arm64/include/asm/syscall_wrapper.h:76:25: note: expanded from macro 'COND_SYSCALL' asmlinkage long __weak __arm64_sys_##name(const struct pt_regs *regs) \ ^ <scratch space>:61:1: note: expanded from here __arm64_sys_process_mrelease ^ kernel/sys_ni.c:292:1: note: declare 'static' if the function is not intended to be used outside of this translation unit arch/arm64/include/asm/syscall_wrapper.h:76:13: note: expanded from macro 'COND_SYSCALL' asmlinkage long __weak __arm64_sys_##name(const struct pt_regs *regs) \ ^ kernel/sys_ni.c:293:1: warning: no previous prototype for function '__arm64_sys_remap_file_pages' [-Wmissing-prototypes] COND_SYSCALL(remap_file_pages); ^ arch/arm64/include/asm/syscall_wrapper.h:76:25: note: expanded from macro 'COND_SYSCALL' asmlinkage long __weak __arm64_sys_##name(const struct pt_regs *regs) \ ^ <scratch space>:62:1: note: expanded from here __arm64_sys_remap_file_pages ^ kernel/sys_ni.c:293:1: note: declare 'static' if the function is not intended to be used outside of this translation unit arch/arm64/include/asm/syscall_wrapper.h:76:13: note: expanded from macro 'COND_SYSCALL' asmlinkage long __weak __arm64_sys_##name(const struct pt_regs *regs) \ ^ kernel/sys_ni.c:294:1: warning: no previous prototype for function '__arm64_sys_mbind' [-Wmissing-prototypes] COND_SYSCALL(mbind); ^ arch/arm64/include/asm/syscall_wrapper.h:76:25: note: expanded from macro 'COND_SYSCALL' asmlinkage long __weak __arm64_sys_##name(const struct pt_regs *regs) \ ^ <scratch space>:63:1: note: expanded from here __arm64_sys_mbind ^ kernel/sys_ni.c:294:1: note: declare 'static' if the function is not intended to be used outside of this translation unit arch/arm64/include/asm/syscall_wrapper.h:76:13: note: expanded from macro 'COND_SYSCALL' asmlinkage long __weak __arm64_sys_##name(const struct pt_regs *regs) \ ^ kernel/sys_ni.c:295:1: warning: no previous prototype for function '__arm64_sys_get_mempolicy' [-Wmissing-prototypes] COND_SYSCALL(get_mempolicy); ^ arch/arm64/include/asm/syscall_wrapper.h:76:25: note: expanded from macro 'COND_SYSCALL' asmlinkage long __weak __arm64_sys_##name(const struct pt_regs *regs) \ ^ <scratch space>:64:1: note: expanded from here __arm64_sys_get_mempolicy ^ kernel/sys_ni.c:295:1: note: declare 'static' if the function is not intended to be used outside of this translation unit arch/arm64/include/asm/syscall_wrapper.h:76:13: note: expanded from macro 'COND_SYSCALL' asmlinkage long __weak __arm64_sys_##name(const struct pt_regs *regs) \ ^ kernel/sys_ni.c:296:1: warning: no previous prototype for function '__arm64_sys_set_mempolicy' [-Wmissing-prototypes] COND_SYSCALL(set_mempolicy); ^ arch/arm64/include/asm/syscall_wrapper.h:76:25: note: expanded from macro 'COND_SYSCALL' asmlinkage long __weak __arm64_sys_##name(const struct pt_regs *regs) \ ^ <scratch space>:65:1: note: expanded from here __arm64_sys_set_mempolicy ^ kernel/sys_ni.c:296:1: note: declare 'static' if the function is not intended to be used outside of this translation unit arch/arm64/include/asm/syscall_wrapper.h:76:13: note: expanded from macro 'COND_SYSCALL' asmlinkage long __weak __arm64_sys_##name(const struct pt_regs *regs) \ ^ kernel/sys_ni.c:297:1: warning: no previous prototype for function '__arm64_sys_migrate_pages' [-Wmissing-prototypes] COND_SYSCALL(migrate_pages); ^ arch/arm64/include/asm/syscall_wrapper.h:76:25: note: expanded from macro 'COND_SYSCALL' asmlinkage long __weak __arm64_sys_##name(const struct pt_regs *regs) \ ^ <scratch space>:66:1: note: expanded from here __arm64_sys_migrate_pages ^ kernel/sys_ni.c:297:1: note: declare 'static' if the function is not intended to be used outside of this translation unit arch/arm64/include/asm/syscall_wrapper.h:76:13: note: expanded from macro 'COND_SYSCALL' asmlinkage long __weak __arm64_sys_##name(const struct pt_regs *regs) \ ^ kernel/sys_ni.c:298:1: warning: no previous prototype for function '__arm64_sys_move_pages' [-Wmissing-prototypes] COND_SYSCALL(move_pages); ^ arch/arm64/include/asm/syscall_wrapper.h:76:25: note: expanded from macro 'COND_SYSCALL' asmlinkage long __weak __arm64_sys_##name(const struct pt_regs *regs) \ ^ <scratch space>:67:1: note: expanded from here __arm64_sys_move_pages ^ kernel/sys_ni.c:298:1: note: declare 'static' if the function is not intended to be used outside of this translation unit arch/arm64/include/asm/syscall_wrapper.h:76:13: note: expanded from macro 'COND_SYSCALL' asmlinkage long __weak __arm64_sys_##name(const struct pt_regs *regs) \ ^ COND_SYSCALL(set_mempolicy_home_node); ^ arch/arm64/include/asm/syscall_wrapper.h:76:25: note: expanded from macro 'COND_SYSCALL' asmlinkage long __weak __arm64_sys_##name(const struct pt_regs *regs) \ ^ <scratch space>:68:1: note: expanded from here __arm64_sys_set_mempolicy_home_node ^ kernel/sys_ni.c:299:1: note: declare 'static' if the function is not intended to be used outside of this translation unit arch/arm64/include/asm/syscall_wrapper.h:76:13: note: expanded from macro 'COND_SYSCALL' asmlinkage long __weak __arm64_sys_##name(const struct pt_regs *regs) \ ^ kernel/sys_ni.c:301:1: warning: no previous prototype for function '__arm64_sys_perf_event_open' [-Wmissing-prototypes] COND_SYSCALL(perf_event_open); ^ arch/arm64/include/asm/syscall_wrapper.h:76:25: note: expanded from macro 'COND_SYSCALL' asmlinkage long __weak __arm64_sys_##name(const struct pt_regs *regs) \ ^ <scratch space>:69:1: note: expanded from here __arm64_sys_perf_event_open ^ kernel/sys_ni.c:301:1: note: declare 'static' if the function is not intended to be used outside of this translation unit arch/arm64/include/asm/syscall_wrapper.h:76:13: note: expanded from macro 'COND_SYSCALL' asmlinkage long __weak __arm64_sys_##name(const struct pt_regs *regs) \ ^ kernel/sys_ni.c:302:1: warning: no previous prototype for function '__arm64_sys_accept4' [-Wmissing-prototypes] COND_SYSCALL(accept4); ^ arch/arm64/include/asm/syscall_wrapper.h:76:25: note: expanded from macro 'COND_SYSCALL' asmlinkage long __weak __arm64_sys_##name(const struct pt_regs *regs) \ ^ <scratch space>:70:1: note: expanded from here __arm64_sys_accept4 ^ kernel/sys_ni.c:302:1: note: declare 'static' if the function is not intended to be used outside of this translation unit arch/arm64/include/asm/syscall_wrapper.h:76:13: note: expanded from macro 'COND_SYSCALL' asmlinkage long __weak __arm64_sys_##name(const struct pt_regs *regs) \ ^ kernel/sys_ni.c:303:1: warning: no previous prototype for function '__arm64_sys_recvmmsg' [-Wmissing-prototypes] COND_SYSCALL(recvmmsg); ^ arch/arm64/include/asm/syscall_wrapper.h:76:25: note: expanded from macro 'COND_SYSCALL' asmlinkage long __weak __arm64_sys_##name(const struct pt_regs *regs) \ ^ <scratch space>:71:1: note: expanded from here __arm64_sys_recvmmsg ^ kernel/sys_ni.c:303:1: note: declare 'static' if the function is not intended to be used outside of this translation unit arch/arm64/include/asm/syscall_wrapper.h:76:13: note: expanded from macro 'COND_SYSCALL' asmlinkage long __weak __arm64_sys_##name(const struct pt_regs *regs) \ ^ kernel/sys_ni.c:304:1: warning: no previous prototype for function '__arm64_sys_recvmmsg_time32' [-Wmissing-prototypes] COND_SYSCALL(recvmmsg_time32); ^ arch/arm64/include/asm/syscall_wrapper.h:76:25: note: expanded from macro 'COND_SYSCALL' asmlinkage long __weak __arm64_sys_##name(const struct pt_regs *regs) \ ^ <scratch space>:72:1: note: expanded from here __arm64_sys_recvmmsg_time32 ^ kernel/sys_ni.c:304:1: note: declare 'static' if the function is not intended to be used outside of this translation unit arch/arm64/include/asm/syscall_wrapper.h:76:13: note: expanded from macro 'COND_SYSCALL' asmlinkage long __weak __arm64_sys_##name(const struct pt_regs *regs) \ ^ kernel/sys_ni.c:313:1: warning: no previous prototype for function '__arm64_sys_fanotify_init' [-Wmissing-prototypes] COND_SYSCALL(fanotify_init); ^ arch/arm64/include/asm/syscall_wrapper.h:76:25: note: expanded from macro 'COND_SYSCALL' asmlinkage long __weak __arm64_sys_##name(const struct pt_regs *regs) \ ^ <scratch space>:81:1: note: expanded from here __arm64_sys_fanotify_init ^ kernel/sys_ni.c:313:1: note: declare 'static' if the function is not intended to be used outside of this translation unit arch/arm64/include/asm/syscall_wrapper.h:76:13: note: expanded from macro 'COND_SYSCALL' asmlinkage long __weak __arm64_sys_##name(const struct pt_regs *regs) \ ^ kernel/sys_ni.c:314:1: warning: no previous prototype for function '__arm64_sys_fanotify_mark' [-Wmissing-prototypes] COND_SYSCALL(fanotify_mark); ^ arch/arm64/include/asm/syscall_wrapper.h:76:25: note: expanded from macro 'COND_SYSCALL' asmlinkage long __weak __arm64_sys_##name(const struct pt_regs *regs) \ ^ <scratch space>:82:1: note: expanded from here __arm64_sys_fanotify_mark ^ kernel/sys_ni.c:314:1: note: declare 'static' if the function is not intended to be used outside of this translation unit arch/arm64/include/asm/syscall_wrapper.h:76:13: note: expanded from macro 'COND_SYSCALL' asmlinkage long __weak __arm64_sys_##name(const struct pt_regs *regs) \ ^ kernel/sys_ni.c:317:1: warning: no previous prototype for function '__arm64_sys_name_to_handle_at' [-Wmissing-prototypes] COND_SYSCALL(name_to_handle_at); ^ arch/arm64/include/asm/syscall_wrapper.h:76:25: note: expanded from macro 'COND_SYSCALL' asmlinkage long __weak __arm64_sys_##name(const struct pt_regs *regs) \ ^ <scratch space>:83:1: note: expanded from here __arm64_sys_name_to_handle_at ^ kernel/sys_ni.c:317:1: note: declare 'static' if the function is not intended to be used outside of this translation unit vim +/__arm64_sys_set_mempolicy_home_node +299 kernel/sys_ni.c 279 280 /* mm/, CONFIG_MMU only */ 281 COND_SYSCALL(swapon); 282 COND_SYSCALL(swapoff); 283 COND_SYSCALL(mprotect); 284 COND_SYSCALL(msync); 285 COND_SYSCALL(mlock); 286 COND_SYSCALL(munlock); 287 COND_SYSCALL(mlockall); 288 COND_SYSCALL(munlockall); 289 COND_SYSCALL(mincore); 290 COND_SYSCALL(madvise); 291 COND_SYSCALL(process_madvise); 292 COND_SYSCALL(process_mrelease); 293 COND_SYSCALL(remap_file_pages); 294 COND_SYSCALL(mbind); 295 COND_SYSCALL(get_mempolicy); 296 COND_SYSCALL(set_mempolicy); 297 COND_SYSCALL(migrate_pages); 300 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org