Hi Tom, kernel test robot noticed the following build warnings: [auto build test WARNING on kees/for-next/seccomp] [also build test WARNING on linus/master v6.17-rc4 next-20250904] [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/Tom-Hromatka/seccomp-Add-SECCOMP_CLONE_FILTER-operation/20250904-043943 base: https://git.kernel.org/pub/scm/linux/kernel/git/kees/linux.git for-next/seccomp patch link: https://lore.kernel.org/r/20250903203805.1335307-1-tom.hromatka%40oracle.com patch subject: [PATCH] seccomp: Add SECCOMP_CLONE_FILTER operation config: x86_64-randconfig-074-20250904 (https://download.01.org/0day-ci/archive/20250904/202509041931.XtQcy27H-lkp@xxxxxxxxx/config) compiler: gcc-13 (Debian 13.3.0-16) 13.3.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250904/202509041931.XtQcy27H-lkp@xxxxxxxxx/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202509041931.XtQcy27H-lkp@xxxxxxxxx/ Note: it may well be a FALSE warning. FWIW you are at least aware of it now. http://gcc.gnu.org/wiki/Better_Uninitialized_Warnings All warnings (new ones prefixed by >>): samples/seccomp/clone-filter.c: In function 'main': >> samples/seccomp/clone-filter.c:142:9: warning: 'ret' may be used uninitialized [-Wmaybe-uninitialized] 142 | exit(ret); | ^~~~~~~~~ samples/seccomp/clone-filter.c:113:13: note: 'ret' was declared here 113 | int ret, status; | ^~~ vim +/ret +142 samples/seccomp/clone-filter.c 109 110 int main(void) 111 { 112 pid_t ref_pid = -1, child_pid = -1; 113 int ret, status; 114 115 ref_pid = fork(); 116 if (ref_pid < 0) 117 exit(errno); 118 else if (ref_pid == 0) 119 do_ref_filter(); 120 121 child_pid = fork(); 122 if (child_pid < 0) 123 goto out; 124 else if (child_pid == 0) 125 do_child_process(ref_pid); 126 127 waitpid(child_pid, &status, 0); 128 if (WEXITSTATUS(status) != 0) { 129 perror("child process failed"); 130 ret = WEXITSTATUS(status); 131 goto out; 132 } 133 134 ret = 0; 135 136 out: 137 if (ref_pid != -1) 138 kill(ref_pid, SIGKILL); 139 if (child_pid != -1) 140 kill(child_pid, SIGKILL); 141 > 142 exit(ret); -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
