Hi Björn, First bad commit (maybe != root cause): tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: ee9bda616d36d2dc864aa294c2656fad88c9efa0 commit: 837a3d66d698516ad2330e122eba9752ec3a48ed [8784/13214] selftests: net: Add cross-compilation support for BPF programs compiler: gcc-11 (Debian 11.3.0-8) 11.3.0 reproduce: # https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=837a3d66d698516ad2330e122eba9752ec3a48ed git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git git fetch --no-tags linux-next master git checkout 837a3d66d698516ad2330e122eba9752ec3a48ed make O=/tmp/kselftest headers make O=/tmp/kselftest -C tools/testing/selftests If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot All errors (new ones prefixed by >>): >> clang-16: error: no such file or directory: 'kselftest/net/bpf/nat6to4.c' >> clang-16: error: no input files -- 0-DAY CI Kernel Test Service https://01.org/lkp