Hi Peter, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on tip/sched/core] [cannot apply to tip/master tip/x86/core hnaz-mm/master arnd-asm-generic/master linus/master tip/x86/asm tip/core/entry v5.15-rc5 next-20211015] [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/Peter-Oskolkov/sched-mm-x86-uaccess-implement-User-Managed-Concurrency-Groups/20211013-072710 base: https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git b2d5b9cec60fecc72a13191c2c6c05acf60975a5 config: arm64-randconfig-r015-20211014 (attached as .config) compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project acb3b187c4c88650a6a717a1bcb234d27d0d7f54) 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/0dcffc800cf354f683ff5c495baa0070dfb60afb git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Peter-Oskolkov/sched-mm-x86-uaccess-implement-User-Managed-Concurrency-Groups/20211013-072710 git checkout 0dcffc800cf354f683ff5c495baa0070dfb60afb # 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@xxxxxxxxx> All warnings (new ones prefixed by >>): asmlinkage long __weak __arm64_sys_##name(const struct pt_regs *regs) \ ^ <scratch space>:141:1: note: expanded from here __arm64_sys_mremap ^ kernel/sys_ni.c:262:1: 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:265:1: warning: no previous prototype for function '__arm64_sys_add_key' [-Wmissing-prototypes] COND_SYSCALL(add_key); ^ 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>:142:1: note: expanded from here __arm64_sys_add_key ^ kernel/sys_ni.c:265:1: 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:266:1: warning: no previous prototype for function '__arm64_sys_request_key' [-Wmissing-prototypes] COND_SYSCALL(request_key); ^ 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>:143:1: note: expanded from here __arm64_sys_request_key ^ kernel/sys_ni.c:266:1: 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:267:1: warning: no previous prototype for function '__arm64_sys_keyctl' [-Wmissing-prototypes] COND_SYSCALL(keyctl); ^ 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>:144:1: note: expanded from here __arm64_sys_keyctl ^ kernel/sys_ni.c:267:1: 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:268:1: warning: no previous prototype for function '__arm64_compat_sys_keyctl' [-Wmissing-prototypes] COND_SYSCALL_COMPAT(keyctl); ^ 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>:145:1: note: expanded from here __arm64_compat_sys_keyctl ^ kernel/sys_ni.c:268:1: 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:271:1: warning: no previous prototype for function '__arm64_sys_landlock_create_ruleset' [-Wmissing-prototypes] COND_SYSCALL(landlock_create_ruleset); ^ 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>:146:1: note: expanded from here __arm64_sys_landlock_create_ruleset ^ kernel/sys_ni.c:271:1: 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:272:1: warning: no previous prototype for function '__arm64_sys_landlock_add_rule' [-Wmissing-prototypes] COND_SYSCALL(landlock_add_rule); ^ 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>:147:1: note: expanded from here __arm64_sys_landlock_add_rule ^ kernel/sys_ni.c:272:1: 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:273:1: warning: no previous prototype for function '__arm64_sys_landlock_restrict_self' [-Wmissing-prototypes] COND_SYSCALL(landlock_restrict_self); ^ 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>:148:1: note: expanded from here __arm64_sys_landlock_restrict_self ^ kernel/sys_ni.c:273:1: 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:276:1: warning: no previous prototype for function '__arm64_sys_umcg_ctl' [-Wmissing-prototypes] COND_SYSCALL(umcg_ctl); ^ 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>:149:1: note: expanded from here __arm64_sys_umcg_ctl ^ kernel/sys_ni.c:276:1: 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:277:1: warning: no previous prototype for function '__arm64_sys_umcg_wait' [-Wmissing-prototypes] COND_SYSCALL(umcg_wait); ^ 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>:150:1: note: expanded from here __arm64_sys_umcg_wait ^ kernel/sys_ni.c:277:1: 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:282:1: warning: no previous prototype for function '__arm64_sys_fadvise64_64' [-Wmissing-prototypes] COND_SYSCALL(fadvise64_64); ^ 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>:151:1: note: expanded from here __arm64_sys_fadvise64_64 ^ kernel/sys_ni.c:282:1: 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:285:1: warning: no previous prototype for function '__arm64_sys_swapon' [-Wmissing-prototypes] COND_SYSCALL(swapon); ^ 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>:152:1: note: expanded from here __arm64_sys_swapon ^ kernel/sys_ni.c:285:1: 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:286:1: warning: no previous prototype for function '__arm64_sys_swapoff' [-Wmissing-prototypes] COND_SYSCALL(swapoff); ^ 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>:153:1: note: expanded from here __arm64_sys_swapoff ^ kernel/sys_ni.c:286:1: 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:287:1: warning: no previous prototype for function '__arm64_sys_mprotect' [-Wmissing-prototypes] COND_SYSCALL(mprotect); ^ 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>:154:1: note: expanded from here __arm64_sys_mprotect ^ kernel/sys_ni.c:287:1: 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:288:1: warning: no previous prototype for function '__arm64_sys_msync' [-Wmissing-prototypes] COND_SYSCALL(msync); ^ 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>:155:1: note: expanded from here __arm64_sys_msync ^ kernel/sys_ni.c:288:1: 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:289:1: warning: no previous prototype for function '__arm64_sys_mlock' [-Wmissing-prototypes] COND_SYSCALL(mlock); ^ 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>:156:1: note: expanded from here __arm64_sys_mlock ^ kernel/sys_ni.c:289:1: 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:290:1: warning: no previous prototype for function '__arm64_sys_munlock' [-Wmissing-prototypes] COND_SYSCALL(munlock); ^ 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>:157:1: note: expanded from here __arm64_sys_munlock ^ kernel/sys_ni.c:290:1: note: declare 'static' if the function is not intended to be used outside of this translation unit vim +/__arm64_sys_umcg_ctl +276 kernel/sys_ni.c 274 275 /* kernel/sched/umcg.c */ > 276 COND_SYSCALL(umcg_ctl); > 277 COND_SYSCALL(umcg_wait); 278 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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