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/20220812-070634 base: https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git master config: um-i386_defconfig (https://download.01.org/0day-ci/archive/20220812/202208121214.urSMKXgE-lkp@xxxxxxxxx/config) compiler: gcc-11 (Debian 11.3.0-3) 11.3.0 reproduce (this is a W=1 build): # https://github.com/intel-lab-lkp/linux/commit/ecab09dda7739b27ffd6ed6c93753f6dfd9bdcb2 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Joanne-Koong/Add-skb-xdp-dynptrs/20220812-070634 git checkout ecab09dda7739b27ffd6ed6c93753f6dfd9bdcb2 # save the config file mkdir build_dir && cp config build_dir/.config make W=1 O=build_dir ARCH=um SUBARCH=i386 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 >>): /usr/bin/ld: net/core/filter.o: in function `bpf_dynptr_from_skb': >> filter.c:(.text+0x4e87): undefined reference to `bpf_dynptr_set_null' >> /usr/bin/ld: filter.c:(.text+0x4e9e): undefined reference to `bpf_dynptr_init' >> /usr/bin/ld: filter.c:(.text+0x4eae): undefined reference to `bpf_dynptr_set_rdonly' collect2: error: ld returned 1 exit status -- 0-DAY CI Kernel Test Service https://01.org/lkp
