Hi, I love your patch! Perhaps something to improve: [auto build test WARNING on arm64/for-next/core] [also build test WARNING on deller-parisc/for-next linus/master v5.16-rc3] [cannot apply to geert-m68k/for-next powerpc/next s390/features arnd-asm-generic/master tip/x86/asm davem-sparc/master next-20211203] [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/akpm-linux-foundation-org/mm-mempolicy-wire-up-syscall-set_mempolicy_home_node-patch-added-to-mm-tree/20211203-065847 base: https://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-next/core config: arm64-randconfig-r025-20211203 (https://download.01.org/0day-ci/archive/20211206/202112060718.JbZsyJcP-lkp@xxxxxxxxx/config) compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 1e328b06c15273edf4a40a27ca24931b5efb3a87) 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/d7bb34dec7840474ed1ad87136b47eb1ea0c8bee git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review akpm-linux-foundation-org/mm-mempolicy-wire-up-syscall-set_mempolicy_home_node-patch-added-to-mm-tree/20211203-065847 git checkout d7bb34dec7840474ed1ad87136b47eb1ea0c8bee # save the config file to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=arm64 SHELL=/bin/bash If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>): asmlinkage long __weak __arm64_sys_##name(const struct pt_regs *regs) \ ^ <scratch space>:161:1: note: expanded from here __arm64_sys_process_madvise ^ 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_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>:162:1: note: expanded from here __arm64_sys_process_mrelease ^ 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_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>:163:1: note: expanded from here __arm64_sys_remap_file_pages ^ 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_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>:164:1: note: expanded from here __arm64_sys_mbind ^ 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_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>:165:1: note: expanded from here __arm64_sys_get_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_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>:166:1: note: expanded from here __arm64_sys_set_mempolicy ^ 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_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>:167:1: note: expanded from here __arm64_sys_migrate_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) \ ^ kernel/sys_ni.c:299:1: 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>:168:1: note: expanded from here __arm64_sys_move_pages ^ 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:300:1: warning: no previous prototype for function '__arm64_sys_set_mempolicy_home_node' [-Wmissing-prototypes] 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>:169:1: note: expanded from here __arm64_sys_set_mempolicy_home_node ^ kernel/sys_ni.c:300:1: 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_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>:170:1: note: expanded from here __arm64_sys_perf_event_open ^ 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_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>:171:1: note: expanded from here __arm64_sys_accept4 ^ 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' [-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>:172:1: note: expanded from here __arm64_sys_recvmmsg ^ 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:305:1: 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>:173:1: note: expanded from here __arm64_sys_recvmmsg_time32 ^ kernel/sys_ni.c:305:1: 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:306:1: warning: no previous prototype for function '__arm64_compat_sys_recvmmsg_time32' [-Wmissing-prototypes] COND_SYSCALL_COMPAT(recvmmsg_time32); ^ arch/arm64/include/asm/syscall_wrapper.h:41:25: note: expanded from macro 'COND_SYSCALL_COMPAT' asmlinkage long __weak __arm64_compat_sys_##name(const struct pt_regs *regs) \ ^ <scratch space>:174:1: note: expanded from here __arm64_compat_sys_recvmmsg_time32 ^ kernel/sys_ni.c:306:1: note: declare 'static' if the function is not intended to be used outside of this translation unit arch/arm64/include/asm/syscall_wrapper.h:41:13: note: expanded from macro 'COND_SYSCALL_COMPAT' asmlinkage long __weak __arm64_compat_sys_##name(const struct pt_regs *regs) \ ^ kernel/sys_ni.c:307:1: warning: no previous prototype for function '__arm64_compat_sys_recvmmsg_time64' [-Wmissing-prototypes] COND_SYSCALL_COMPAT(recvmmsg_time64); ^ arch/arm64/include/asm/syscall_wrapper.h:41:25: note: expanded from macro 'COND_SYSCALL_COMPAT' asmlinkage long __weak __arm64_compat_sys_##name(const struct pt_regs *regs) \ ^ <scratch space>:2:1: note: expanded from here __arm64_compat_sys_recvmmsg_time64 ^ kernel/sys_ni.c:307:1: note: declare 'static' if the function is not intended to be used outside of this translation unit arch/arm64/include/asm/syscall_wrapper.h:41:13: note: expanded from macro 'COND_SYSCALL_COMPAT' asmlinkage long __weak __arm64_compat_sys_##name(const struct pt_regs *regs) \ ^ kernel/sys_ni.c:314:1: 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>:3:1: note: expanded from here __arm64_sys_fanotify_init ^ kernel/sys_ni.c:314:1: note: declare 'static' if the function is not intended to be used outside of this translation unit vim +/__arm64_sys_set_mempolicy_home_node +300 kernel/sys_ni.c 280 281 /* mm/, CONFIG_MMU only */ 282 COND_SYSCALL(swapon); 283 COND_SYSCALL(swapoff); 284 COND_SYSCALL(mprotect); 285 COND_SYSCALL(msync); 286 COND_SYSCALL(mlock); 287 COND_SYSCALL(munlock); 288 COND_SYSCALL(mlockall); 289 COND_SYSCALL(munlockall); 290 COND_SYSCALL(mincore); 291 COND_SYSCALL(madvise); 292 COND_SYSCALL(process_madvise); 293 COND_SYSCALL(process_mrelease); 294 COND_SYSCALL(remap_file_pages); 295 COND_SYSCALL(mbind); 296 COND_SYSCALL(get_mempolicy); 297 COND_SYSCALL(set_mempolicy); 298 COND_SYSCALL(migrate_pages); 299 COND_SYSCALL(move_pages); > 300 COND_SYSCALL(set_mempolicy_home_node); 301 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx