Hi Changbin, FYI, the error/warning still remains. tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: c068f40300a0eaa34f7105d137a5560b86951aa9 commit: acd3b7768048fe338248cdf43ccfbf8c084a6bc1 [1627/13681] libbpf: Return -ENODATA for missing btf section config: parisc-randconfig-r003-20230219 (https://download.01.org/0day-ci/archive/20230220/202302201555.OI4N54jb-lkp@xxxxxxxxx/config) compiler: hppa-linux-gcc (GCC) 12.1.0 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 # https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=acd3b7768048fe338248cdf43ccfbf8c084a6bc1 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 acd3b7768048fe338248cdf43ccfbf8c084a6bc1 # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=parisc olddefconfig COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=parisc 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/202302201555.OI4N54jb-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): Complex, interval and imaginary float types are not supported Encountered error while encoding BTF. libbpf: failed to find '.BTF' ELF section in vmlinux >> FAILED: load BTF from vmlinux: No data available -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests
