Hi Casey, I love your patch! Perhaps something to improve: [auto build test WARNING on tip/perf/core] [also build test WARNING on acme/perf/core shuah-kselftest/next shuah-kselftest/fixes v6.2] [cannot apply to linus/master next-20230223] [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#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Casey-Schaufler/LSM-Maintain-a-table-of-LSM-attribute-data/20230223-050902 patch link: https://lore.kernel.org/r/20230222200838.8149-5-casey%40schaufler-ca.com patch subject: [PATCH v6 04/11] LSM: syscalls for current process attributes config: x86_64-rhel-8.3 (https://download.01.org/0day-ci/archive/20230223/202302232007.dcqfhRnw-lkp@xxxxxxxxx/config) compiler: gcc-11 (Debian 11.3.0-8) 11.3.0 reproduce (this is a W=1 build): # https://github.com/intel-lab-lkp/linux/commit/04ba82c1bd629c2114ad851b4723d6e8b0f9d08f git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Casey-Schaufler/LSM-Maintain-a-table-of-LSM-attribute-data/20230223-050902 git checkout 04ba82c1bd629c2114ad851b4723d6e8b0f9d08f # save the config file mkdir build_dir && cp config build_dir/.config make W=1 O=build_dir ARCH=x86_64 olddefconfig make W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Link: https://lore.kernel.org/oe-kbuild-all/202302232007.dcqfhRnw-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): >> security/lsm_syscalls.c:61:5: warning: no previous prototype for 'lsm_name_to_attr' [-Wmissing-prototypes] 61 | u64 lsm_name_to_attr(const char *name) | ^~~~~~~~~~~~~~~~ vim +/lsm_name_to_attr +61 security/lsm_syscalls.c 51 52 /** 53 * lsm_name_to_attr - map an LSM attribute name to its ID 54 * @name: name of the attribute 55 * 56 * Look the given @name up in the table of know attribute names. 57 * 58 * Returns the LSM attribute value associated with @name, or 0 if 59 * there is no mapping. 60 */ > 61 u64 lsm_name_to_attr(const char *name) 62 { 63 int i; 64 65 for (i = 0; i < ARRAY_SIZE(lsm_attr_names); i++) 66 if (!strcmp(name, lsm_attr_names[i].name)) 67 return lsm_attr_names[i].attrs; 68 return 0; 69 } 70 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests