On 5/27/2021 8:29 AM, Paul Moore wrote: > On Wed, May 26, 2021 at 9:51 PM kernel test robot <lkp@xxxxxxxxx> wrote: >> tree: https://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux.git working-io_uring >> head: 1f25193a3f5495eefbc9826b1de1a008a2439351 >> commit: 1f25193a3f5495eefbc9826b1de1a008a2439351 [9/9] Smack: Brutalist io_uring support with debug >> config: x86_64-randconfig-r013-20210526 (attached as .config) >> compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project 99155e913e9bad5f7f8a247f8bb3a3ff3da74af1) >> 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/pcmoore/selinux.git/commit/?id=1f25193a3f5495eefbc9826b1de1a008a2439351 >> git remote add pcmoore-selinux https://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux.git >> git fetch --no-tags pcmoore-selinux working-io_uring >> git checkout 1f25193a3f5495eefbc9826b1de1a008a2439351 >> # 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@xxxxxxxxx> >> >> All warnings (new ones prefixed by >>): >> >>>> security/smack/smack_lsm.c:4702:5: warning: no previous prototype for function 'smack_uring_override_creds' [-Wmissing-prototypes] >> int smack_uring_override_creds(const struct cred *new) >> ^ >> security/smack/smack_lsm.c:4702:1: note: declare 'static' if the function is not intended to be used outside of this translation unit >> int smack_uring_override_creds(const struct cred *new) >> ^ >> static >>>> security/smack/smack_lsm.c:4739:5: warning: no previous prototype for function 'smack_uring_sqpoll' [-Wmissing-prototypes] >> int smack_uring_sqpoll(void) >> ^ >> security/smack/smack_lsm.c:4739:1: note: declare 'static' if the function is not intended to be used outside of this translation unit >> int smack_uring_sqpoll(void) >> ^ >> static >> 2 warnings generated. > FYI, Casey I took the liberty of making the Smack functions static (I > had made the same mistake with the SELinux code). Thank you. If there was any doubt, the Smack function declarations were taken directly from the SELinux versions.