[security:landlock_lsm 8/12] kernel/sys_ni.c:270:1: warning: no previous prototype for function '__arm64_sys_landlock_create_ruleset'

Mickaël Salaün mic at digikod.net
Fri Mar 19 08:29:08 UTC 2021


This kind of warnings will be fixed with
https://lore.kernel.org/lkml/20210301131533.64671-2-masahiroy@kernel.org/


On 19/03/2021 05:56, kernel test robot wrote:
> 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: arm64-randconfig-r033-20210318 (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 arm64 cross compiling tool for clang build
>         # apt-get install binutils-aarch64-linux-gnu
>         # https://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security.git/commit/?id=c5eafae25eb54cc5354f0675a88a34f03c08f559
>         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=arm64 
> 
> If you fix the issue, kindly add following tag as appropriate
> Reported-by: kernel test robot <lkp at intel.com>
> 
> All warnings (new ones prefixed by >>):
> 
>            asmlinkage long __weak __arm64_sys_##name(const struct pt_regs *regs)   \
>                                   ^
>    <scratch space>:21:1: note: expanded from here
>    __arm64_sys_shutdown
>    ^
>    kernel/sys_ni.c:250:1: 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:251:1: warning: no previous prototype for function '__arm64_sys_recvfrom' [-Wmissing-prototypes]
>    COND_SYSCALL(recvfrom);
>    ^
>    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>:22:1: note: expanded from here
>    __arm64_sys_recvfrom
>    ^
>    kernel/sys_ni.c:251:1: 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:253:1: warning: no previous prototype for function '__arm64_sys_sendmsg' [-Wmissing-prototypes]
>    COND_SYSCALL(sendmsg);
>    ^
>    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>:27:1: note: expanded from here
>    __arm64_sys_sendmsg
>    ^
>    kernel/sys_ni.c:253:1: 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:255:1: warning: no previous prototype for function '__arm64_sys_recvmsg' [-Wmissing-prototypes]
>    COND_SYSCALL(recvmsg);
>    ^
>    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>:32:1: note: expanded from here
>    __arm64_sys_recvmsg
>    ^
>    kernel/sys_ni.c:255:1: 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:261:1: warning: no previous prototype for function '__arm64_sys_mremap' [-Wmissing-prototypes]
>    COND_SYSCALL(mremap);
>    ^
>    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>:37:1: note: expanded from here
>    __arm64_sys_mremap
>    ^
>    kernel/sys_ni.c:261:1: 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:264:1: 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>:38:1: note: expanded from here
>    __arm64_sys_add_key
>    ^
>    kernel/sys_ni.c:264:1: 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_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>:39:1: note: expanded from here
>    __arm64_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/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_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>:40:1: note: expanded from here
>    __arm64_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/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:270:1: 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>:45:1: note: expanded from here
>    __arm64_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/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:271:1: 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>:46:1: note: expanded from here
>    __arm64_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/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_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>:47:1: note: expanded from here
>    __arm64_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/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_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>:48:1: note: expanded from here
>    __arm64_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/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:280:1: 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>:49:1: note: expanded from here
>    __arm64_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/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:281:1: 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>:50:1: note: expanded from here
>    __arm64_sys_swapoff
>    ^
>    kernel/sys_ni.c:281:1: 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_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>:51:1: note: expanded from here
>    __arm64_sys_mprotect
>    ^
>    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:283:1: 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>:52:1: note: expanded from here
>    __arm64_sys_msync
>    ^
>    kernel/sys_ni.c:283:1: 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:284:1: 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>:53:1: note: expanded from here
>    __arm64_sys_mlock
>    ^
>    kernel/sys_ni.c:284:1: 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_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>:54:1: note: expanded from here
>    __arm64_sys_munlock
>    ^
>    kernel/sys_ni.c:285:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
> 
> 
> vim +/__arm64_sys_landlock_create_ruleset +270 kernel/sys_ni.c
> 
>    268	
>    269	/* security/landlock/syscalls.c */
>  > 270	COND_SYSCALL(landlock_create_ruleset);
>  > 271	COND_SYSCALL(landlock_add_rule);
>  > 272	COND_SYSCALL(landlock_restrict_self);
>    273	
> 
> ---
> 0-DAY CI Kernel Test Service, Intel Corporation
> https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
> 



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