Hi Joanne, Thank you for the patch! Yet something to improve: [auto build test ERROR on bpf-next/master] url: https://github.com/intel-lab-lkp/linux/commits/Joanne-Koong/Add-skb-xdp-dynptrs/20220823-080022 base: https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git master config: microblaze-buildonly-randconfig-r003-20220823 (https://download.01.org/0day-ci/archive/20220824/202208240923.X2tgBh6Y-lkp@xxxxxxxxx/config) compiler: microblaze-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://github.com/intel-lab-lkp/linux/commit/6d832ed17cea3ede1cd48f885a73144d9c4d800a git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Joanne-Koong/Add-skb-xdp-dynptrs/20220823-080022 git checkout 6d832ed17cea3ede1cd48f885a73144d9c4d800a # 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=microblaze SHELL=/bin/bash If you fix the issue, kindly add following tag where applicable Reported-by: kernel test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): microblaze-linux-ld: kernel/bpf/helpers.o: in function `____bpf_dynptr_read': kernel/bpf/helpers.c:1543: undefined reference to `__bpf_skb_load_bytes' >> microblaze-linux-ld: kernel/bpf/helpers.c:1545: undefined reference to `__bpf_xdp_load_bytes' microblaze-linux-ld: kernel/bpf/helpers.o: in function `____bpf_dynptr_write': kernel/bpf/helpers.c:1586: undefined reference to `__bpf_skb_store_bytes' >> microblaze-linux-ld: kernel/bpf/helpers.c:1591: undefined reference to `__bpf_xdp_store_bytes' microblaze-linux-ld: kernel/bpf/helpers.o: in function `____bpf_dynptr_data': kernel/bpf/helpers.c:1653: undefined reference to `bpf_xdp_pointer' pahole: .tmp_vmlinux.btf: Invalid argument .btf.vmlinux.bin.o: file not recognized: file format not recognized -- 0-DAY CI Kernel Test Service https://01.org/lkp