tree: https://git.kernel.org/pub/scm/linux/kernel/git/toke/linux.git xdp-queueing-01 head: 7cdc645073a59261514e56e1a4c6d0dac1b24b32 commit: f88dc77e8d556abca484fb6dc9b6fc7517452af8 [6/9] net: add a page pool instance to the loopback device config: m68k-defconfig (attached as .config) compiler: m68k-linux-gcc (GCC) 11.2.0 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/toke/linux.git/commit/?id=f88dc77e8d556abca484fb6dc9b6fc7517452af8 git remote add toke https://git.kernel.org/pub/scm/linux/kernel/git/toke/linux.git git fetch --no-tags toke xdp-queueing-01 git checkout f88dc77e8d556abca484fb6dc9b6fc7517452af8 # save the attached .config to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=m68k SHELL=/bin/bash If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot All errors (new ones prefixed by >>): m68k-linux-ld: drivers/net/loopback.o: in function `dev_loopback_get_page_pool': >> loopback.c:(.text+0x38c): undefined reference to `page_pool_create' --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org