[kbuild-all] [security:landlock_lsm 8/12] kernel/sys_ni.c:270:1: warning: no previous prototype for function '__x64_sys_landlock_create_ruleset'

tree: https://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security.git landlock_lsm head: f642729df39003efe2a9bfa341a95759d712eb35 commit: c5eafae25eb54cc5354f0675a88a34f03c08f559 [8/12] landlock: Add syscall implementations config: x86_64-randconfig-r004-20210318 (attached as .config) compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project fcc1ce00931751ac02498986feb37744e9ace8de) 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 x86_64 cross compiling tool for clang build # apt-get install binutils-x86-64-linux-gnu # https://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security.gi... git remote add security https://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security.git git fetch --no-tags security landlock_lsm git checkout c5eafae25eb54cc5354f0675a88a34f03c08f559 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64 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 >>): kernel/sys_ni.c:265:1: warning: no previous prototype for function '__ia32_sys_request_key' [-Wmissing-prototypes] COND_SYSCALL(request_key); ^ arch/x86/include/asm/syscall_wrapper.h:257:2: note: expanded from macro 'COND_SYSCALL' __IA32_COND_SYSCALL(name) ^ arch/x86/include/asm/syscall_wrapper.h:120:2: note: expanded from macro '__IA32_COND_SYSCALL' __COND_SYSCALL(ia32, sys_##name) ^ arch/x86/include/asm/syscall_wrapper.h:83:14: note: expanded from macro '__COND_SYSCALL' __weak long __##abi##_##name(const struct pt_regs *__unused) \ ^ <scratch space>:23:1: note: expanded from here __ia32_sys_request_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/x86/include/asm/syscall_wrapper.h:257:2: note: expanded from macro 'COND_SYSCALL' __IA32_COND_SYSCALL(name) ^ arch/x86/include/asm/syscall_wrapper.h:120:2: note: expanded from macro '__IA32_COND_SYSCALL' __COND_SYSCALL(ia32, sys_##name) ^ arch/x86/include/asm/syscall_wrapper.h:83:9: note: expanded from macro '__COND_SYSCALL' __weak long __##abi##_##name(const struct pt_regs *__unused) \ ^ kernel/sys_ni.c:266:1: warning: no previous prototype for function '__x64_sys_keyctl' [-Wmissing-prototypes] COND_SYSCALL(keyctl); ^ arch/x86/include/asm/syscall_wrapper.h:256:2: note: expanded from macro 'COND_SYSCALL' __X64_COND_SYSCALL(name) \ ^ arch/x86/include/asm/syscall_wrapper.h:100:2: note: expanded from macro '__X64_COND_SYSCALL' __COND_SYSCALL(x64, sys_##name) ^ arch/x86/include/asm/syscall_wrapper.h:83:14: note: expanded from macro '__COND_SYSCALL' __weak long __##abi##_##name(const struct pt_regs *__unused) \ ^ <scratch space>:27:1: note: expanded from here __x64_sys_keyctl ^ kernel/sys_ni.c:266:1: note: declare 'static' if the function is not intended to be used outside of this translation unit arch/x86/include/asm/syscall_wrapper.h:256:2: note: expanded from macro 'COND_SYSCALL' __X64_COND_SYSCALL(name) \ ^ arch/x86/include/asm/syscall_wrapper.h:100:2: note: expanded from macro '__X64_COND_SYSCALL' __COND_SYSCALL(x64, sys_##name) ^ arch/x86/include/asm/syscall_wrapper.h:83:9: note: expanded from macro '__COND_SYSCALL' __weak long __##abi##_##name(const struct pt_regs *__unused) \ ^ kernel/sys_ni.c:266:1: warning: no previous prototype for function '__ia32_sys_keyctl' [-Wmissing-prototypes] COND_SYSCALL(keyctl); ^ arch/x86/include/asm/syscall_wrapper.h:257:2: note: expanded from macro 'COND_SYSCALL' __IA32_COND_SYSCALL(name) ^ arch/x86/include/asm/syscall_wrapper.h:120:2: note: expanded from macro '__IA32_COND_SYSCALL' __COND_SYSCALL(ia32, sys_##name) ^ arch/x86/include/asm/syscall_wrapper.h:83:14: note: expanded from macro '__COND_SYSCALL' __weak long __##abi##_##name(const struct pt_regs *__unused) \ ^ <scratch space>:31:1: note: expanded from here __ia32_sys_keyctl ^ kernel/sys_ni.c:266:1: note: declare 'static' if the function is not intended to be used outside of this translation unit arch/x86/include/asm/syscall_wrapper.h:257:2: note: expanded from macro 'COND_SYSCALL' __IA32_COND_SYSCALL(name) ^ arch/x86/include/asm/syscall_wrapper.h:120:2: note: expanded from macro '__IA32_COND_SYSCALL' __COND_SYSCALL(ia32, sys_##name) ^ arch/x86/include/asm/syscall_wrapper.h:83:9: note: expanded from macro '__COND_SYSCALL' __weak long __##abi##_##name(const struct pt_regs *__unused) \ ^ kernel/sys_ni.c:267:1: warning: no previous prototype for function '__ia32_compat_sys_keyctl' [-Wmissing-prototypes] COND_SYSCALL_COMPAT(keyctl); ^ arch/x86/include/asm/syscall_wrapper.h:218:2: note: expanded from macro 'COND_SYSCALL_COMPAT' __IA32_COMPAT_COND_SYSCALL(name) \ ^ arch/x86/include/asm/syscall_wrapper.h:148:2: note: expanded from macro '__IA32_COMPAT_COND_SYSCALL' __COND_SYSCALL(ia32, compat_sys_##name) ^ arch/x86/include/asm/syscall_wrapper.h:83:14: note: expanded from macro '__COND_SYSCALL' __weak long __##abi##_##name(const struct pt_regs *__unused) \ ^ <scratch space>:35:1: note: expanded from here __ia32_compat_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/x86/include/asm/syscall_wrapper.h:218:2: note: expanded from macro 'COND_SYSCALL_COMPAT' __IA32_COMPAT_COND_SYSCALL(name) \ ^ arch/x86/include/asm/syscall_wrapper.h:148:2: note: expanded from macro '__IA32_COMPAT_COND_SYSCALL' __COND_SYSCALL(ia32, compat_sys_##name) ^ arch/x86/include/asm/syscall_wrapper.h:83:9: note: expanded from macro '__COND_SYSCALL' __weak long __##abi##_##name(const struct pt_regs *__unused) \ ^ COND_SYSCALL(landlock_create_ruleset); ^ arch/x86/include/asm/syscall_wrapper.h:256:2: note: expanded from macro 'COND_SYSCALL' __X64_COND_SYSCALL(name) \ ^ arch/x86/include/asm/syscall_wrapper.h:100:2: note: expanded from macro '__X64_COND_SYSCALL' __COND_SYSCALL(x64, sys_##name) ^ arch/x86/include/asm/syscall_wrapper.h:83:14: note: expanded from macro '__COND_SYSCALL' __weak long __##abi##_##name(const struct pt_regs *__unused) \ ^ <scratch space>:39:1: note: expanded from here __x64_sys_landlock_create_ruleset ^ kernel/sys_ni.c:270:1: note: declare 'static' if the function is not intended to be used outside of this translation unit arch/x86/include/asm/syscall_wrapper.h:256:2: note: expanded from macro 'COND_SYSCALL' __X64_COND_SYSCALL(name) \ ^ arch/x86/include/asm/syscall_wrapper.h:100:2: note: expanded from macro '__X64_COND_SYSCALL' __COND_SYSCALL(x64, sys_##name) ^ arch/x86/include/asm/syscall_wrapper.h:83:9: note: expanded from macro '__COND_SYSCALL' __weak long __##abi##_##name(const struct pt_regs *__unused) \ ^ COND_SYSCALL(landlock_create_ruleset); ^ arch/x86/include/asm/syscall_wrapper.h:257:2: note: expanded from macro 'COND_SYSCALL' __IA32_COND_SYSCALL(name) ^ arch/x86/include/asm/syscall_wrapper.h:120:2: note: expanded from macro '__IA32_COND_SYSCALL' __COND_SYSCALL(ia32, sys_##name) ^ arch/x86/include/asm/syscall_wrapper.h:83:14: note: expanded from macro '__COND_SYSCALL' __weak long __##abi##_##name(const struct pt_regs *__unused) \ ^ <scratch space>:43:1: note: expanded from here __ia32_sys_landlock_create_ruleset ^ kernel/sys_ni.c:270:1: note: declare 'static' if the function is not intended to be used outside of this translation unit arch/x86/include/asm/syscall_wrapper.h:257:2: note: expanded from macro 'COND_SYSCALL' __IA32_COND_SYSCALL(name) ^ arch/x86/include/asm/syscall_wrapper.h:120:2: note: expanded from macro '__IA32_COND_SYSCALL' __COND_SYSCALL(ia32, sys_##name) ^ arch/x86/include/asm/syscall_wrapper.h:83:9: note: expanded from macro '__COND_SYSCALL' __weak long __##abi##_##name(const struct pt_regs *__unused) \ ^ COND_SYSCALL(landlock_add_rule); ^ arch/x86/include/asm/syscall_wrapper.h:256:2: note: expanded from macro 'COND_SYSCALL' __X64_COND_SYSCALL(name) \ ^ arch/x86/include/asm/syscall_wrapper.h:100:2: note: expanded from macro '__X64_COND_SYSCALL' __COND_SYSCALL(x64, sys_##name) ^ arch/x86/include/asm/syscall_wrapper.h:83:14: note: expanded from macro '__COND_SYSCALL' __weak long __##abi##_##name(const struct pt_regs *__unused) \ ^ <scratch space>:47:1: note: expanded from here __x64_sys_landlock_add_rule ^ kernel/sys_ni.c:271:1: note: declare 'static' if the function is not intended to be used outside of this translation unit arch/x86/include/asm/syscall_wrapper.h:256:2: note: expanded from macro 'COND_SYSCALL' __X64_COND_SYSCALL(name) \ ^ arch/x86/include/asm/syscall_wrapper.h:100:2: note: expanded from macro '__X64_COND_SYSCALL' __COND_SYSCALL(x64, sys_##name) ^ arch/x86/include/asm/syscall_wrapper.h:83:9: note: expanded from macro '__COND_SYSCALL' __weak long __##abi##_##name(const struct pt_regs *__unused) \ ^ COND_SYSCALL(landlock_add_rule); ^ arch/x86/include/asm/syscall_wrapper.h:257:2: note: expanded from macro 'COND_SYSCALL' __IA32_COND_SYSCALL(name) ^ arch/x86/include/asm/syscall_wrapper.h:120:2: note: expanded from macro '__IA32_COND_SYSCALL' __COND_SYSCALL(ia32, sys_##name) ^ arch/x86/include/asm/syscall_wrapper.h:83:14: note: expanded from macro '__COND_SYSCALL' __weak long __##abi##_##name(const struct pt_regs *__unused) \ ^ <scratch space>:51:1: note: expanded from here __ia32_sys_landlock_add_rule ^ kernel/sys_ni.c:271:1: note: declare 'static' if the function is not intended to be used outside of this translation unit arch/x86/include/asm/syscall_wrapper.h:257:2: note: expanded from macro 'COND_SYSCALL' __IA32_COND_SYSCALL(name) ^ arch/x86/include/asm/syscall_wrapper.h:120:2: note: expanded from macro '__IA32_COND_SYSCALL' __COND_SYSCALL(ia32, sys_##name) ^ arch/x86/include/asm/syscall_wrapper.h:83:9: note: expanded from macro '__COND_SYSCALL' __weak long __##abi##_##name(const struct pt_regs *__unused) \ ^ COND_SYSCALL(landlock_restrict_self); ^ arch/x86/include/asm/syscall_wrapper.h:256:2: note: expanded from macro 'COND_SYSCALL' __X64_COND_SYSCALL(name) \ ^ arch/x86/include/asm/syscall_wrapper.h:100:2: note: expanded from macro '__X64_COND_SYSCALL' __COND_SYSCALL(x64, sys_##name) ^ arch/x86/include/asm/syscall_wrapper.h:83:14: note: expanded from macro '__COND_SYSCALL' __weak long __##abi##_##name(const struct pt_regs *__unused) \ ^ <scratch space>:55:1: note: expanded from here __x64_sys_landlock_restrict_self ^ kernel/sys_ni.c:272:1: note: declare 'static' if the function is not intended to be used outside of this translation unit arch/x86/include/asm/syscall_wrapper.h:256:2: note: expanded from macro 'COND_SYSCALL' __X64_COND_SYSCALL(name) \ ^ arch/x86/include/asm/syscall_wrapper.h:100:2: note: expanded from macro '__X64_COND_SYSCALL' __COND_SYSCALL(x64, sys_##name) ^ arch/x86/include/asm/syscall_wrapper.h:83:9: note: expanded from macro '__COND_SYSCALL' __weak long __##abi##_##name(const struct pt_regs *__unused) \ ^ COND_SYSCALL(landlock_restrict_self); ^ arch/x86/include/asm/syscall_wrapper.h:257:2: note: expanded from macro 'COND_SYSCALL' __IA32_COND_SYSCALL(name) ^ arch/x86/include/asm/syscall_wrapper.h:120:2: note: expanded from macro '__IA32_COND_SYSCALL' __COND_SYSCALL(ia32, sys_##name) ^ arch/x86/include/asm/syscall_wrapper.h:83:14: note: expanded from macro '__COND_SYSCALL' __weak long __##abi##_##name(const struct pt_regs *__unused) \ ^ <scratch space>:59:1: note: expanded from here __ia32_sys_landlock_restrict_self ^ kernel/sys_ni.c:272:1: note: declare 'static' if the function is not intended to be used outside of this translation unit arch/x86/include/asm/syscall_wrapper.h:257:2: note: expanded from macro 'COND_SYSCALL' __IA32_COND_SYSCALL(name) ^ arch/x86/include/asm/syscall_wrapper.h:120:2: note: expanded from macro '__IA32_COND_SYSCALL' __COND_SYSCALL(ia32, sys_##name) ^ arch/x86/include/asm/syscall_wrapper.h:83:9: note: expanded from macro '__COND_SYSCALL' __weak long __##abi##_##name(const struct pt_regs *__unused) \ ^ kernel/sys_ni.c:277:1: warning: no previous prototype for function '__x64_sys_fadvise64_64' [-Wmissing-prototypes] COND_SYSCALL(fadvise64_64); ^ arch/x86/include/asm/syscall_wrapper.h:256:2: note: expanded from macro 'COND_SYSCALL' __X64_COND_SYSCALL(name) \ ^ arch/x86/include/asm/syscall_wrapper.h:100:2: note: expanded from macro '__X64_COND_SYSCALL' __COND_SYSCALL(x64, sys_##name) ^ arch/x86/include/asm/syscall_wrapper.h:83:14: note: expanded from macro '__COND_SYSCALL' __weak long __##abi##_##name(const struct pt_regs *__unused) \ ^ <scratch space>:63:1: note: expanded from here __x64_sys_fadvise64_64 ^ kernel/sys_ni.c:277:1: note: declare 'static' if the function is not intended to be used outside of this translation unit arch/x86/include/asm/syscall_wrapper.h:256:2: note: expanded from macro 'COND_SYSCALL' __X64_COND_SYSCALL(name) \ ^ arch/x86/include/asm/syscall_wrapper.h:100:2: note: expanded from macro '__X64_COND_SYSCALL' __COND_SYSCALL(x64, sys_##name) ^ arch/x86/include/asm/syscall_wrapper.h:83:9: note: expanded from macro '__COND_SYSCALL' __weak long __##abi##_##name(const struct pt_regs *__unused) \ ^ kernel/sys_ni.c:277:1: warning: no previous prototype for function '__ia32_sys_fadvise64_64' [-Wmissing-prototypes] COND_SYSCALL(fadvise64_64); ^ arch/x86/include/asm/syscall_wrapper.h:257:2: note: expanded from macro 'COND_SYSCALL' __IA32_COND_SYSCALL(name) ^ arch/x86/include/asm/syscall_wrapper.h:120:2: note: expanded from macro '__IA32_COND_SYSCALL' __COND_SYSCALL(ia32, sys_##name) ^ arch/x86/include/asm/syscall_wrapper.h:83:14: note: expanded from macro '__COND_SYSCALL' __weak long __##abi##_##name(const struct pt_regs *__unused) \ ^ <scratch space>:67:1: note: expanded from here __ia32_sys_fadvise64_64 ^ kernel/sys_ni.c:277:1: note: declare 'static' if the function is not intended to be used outside of this translation unit arch/x86/include/asm/syscall_wrapper.h:257:2: note: expanded from macro 'COND_SYSCALL' __IA32_COND_SYSCALL(name) ^ arch/x86/include/asm/syscall_wrapper.h:120:2: note: expanded from macro '__IA32_COND_SYSCALL' __COND_SYSCALL(ia32, sys_##name) ^ arch/x86/include/asm/syscall_wrapper.h:83:9: note: expanded from macro '__COND_SYSCALL' __weak long __##abi##_##name(const struct pt_regs *__unused) \ ^ kernel/sys_ni.c:280:1: warning: no previous prototype for function '__x64_sys_swapon' [-Wmissing-prototypes] COND_SYSCALL(swapon); ^ arch/x86/include/asm/syscall_wrapper.h:256:2: note: expanded from macro 'COND_SYSCALL' __X64_COND_SYSCALL(name) \ ^ arch/x86/include/asm/syscall_wrapper.h:100:2: note: expanded from macro '__X64_COND_SYSCALL' __COND_SYSCALL(x64, sys_##name) ^ arch/x86/include/asm/syscall_wrapper.h:83:14: note: expanded from macro '__COND_SYSCALL' __weak long __##abi##_##name(const struct pt_regs *__unused) \ ^ <scratch space>:71:1: note: expanded from here __x64_sys_swapon ^ kernel/sys_ni.c:280:1: note: declare 'static' if the function is not intended to be used outside of this translation unit arch/x86/include/asm/syscall_wrapper.h:256:2: note: expanded from macro 'COND_SYSCALL' __X64_COND_SYSCALL(name) \ ^ arch/x86/include/asm/syscall_wrapper.h:100:2: note: expanded from macro '__X64_COND_SYSCALL' __COND_SYSCALL(x64, sys_##name) ^ arch/x86/include/asm/syscall_wrapper.h:83:9: note: expanded from macro '__COND_SYSCALL' __weak long __##abi##_##name(const struct pt_regs *__unused) \ ^ kernel/sys_ni.c:280:1: warning: no previous prototype for function '__ia32_sys_swapon' [-Wmissing-prototypes] vim +/__x64_sys_landlock_create_ruleset +270 kernel/sys_ni.c 268 269 /* security/landlock/syscalls.c */ 273 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org