Hi Kui-Feng, kernel test robot noticed the following build warnings: [auto build test WARNING on bpf-next/master] url: https://github.com/intel-lab-lkp/linux/commits/Kui-Feng-Lee/selftests-bpf-Add-traffic-monitor-functions/20240713-140129 base: https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git master patch link: https://lore.kernel.org/r/20240713055552.2482367-2-thinker.li%40gmail.com patch subject: [PATCH bpf-next 1/4] selftests/bpf: Add traffic monitor functions. :::::: branch date: 9 hours ago :::::: commit date: 9 hours ago compiler: clang version 18.1.5 (https://github.com/llvm/llvm-project 617a15a9eac96088ae5e9134248d8236e34b91b1) 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/r/202407132213.2rer2R4r-lkp@xxxxxxxxx/ includecheck warnings: (new ones prefixed by >>) >> tools/testing/selftests/bpf/network_helpers.c: sys/stat.h is included more than once. vim +13 tools/testing/selftests/bpf/network_helpers.c 10 11 #include <arpa/inet.h> 12 #include <sys/mount.h> > 13 #include <sys/stat.h> 14 #include <sys/un.h> 15 #include <sys/types.h> > 16 #include <sys/stat.h> 17 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki