Hi Jakub, I love your patch! Yet something to improve: [auto build test ERROR on bpf-next/master] url: https://github.com/0day-ci/linux/commits/Jakub-Kicinski/bpf-remove-the-cg... base: https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git master config: nds32-allnoconfig (https://download.01.org/0day-ci/archive/20211215/202112151324.LTeefTnQ-lk...) compiler: nds32le-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://github.com/0day-ci/linux/commit/09a6dd8be59ad147fccc06cec41a89cca... git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Jakub-Kicinski/bpf-remove-the-cgroup-bpf-header-dependecy/20211215-103243 git checkout 09a6dd8be59ad147fccc06cec41a89cca25fb5da # save the config file to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=nds32 SHELL=/bin/bash drivers/of/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): In file included from include/linux/cgroup-defs.h:22, from include/linux/cgroup.h:28, from include/linux/memcontrol.h:13, from include/linux/swap.h:9, from include/linux/suspend.h:5, from include/linux/regulator/consumer.h:35, from include/linux/amba/bus.h:19, from drivers/of/platform.c:14: 6 | #include <linux/bpf-link.h> | ^~~~~~~~~~~~~~~~~~ compilation terminated. vim +6 include/linux/bpf-cgroup.h 4 5 #include <linux/bpf-cgroup-types.h> 7 #include <linux/errno.h> 8 #include <linux/jump_label.h> 9 #include <linux/percpu.h> 10 #include <linux/percpu-refcount.h> 11 #include <linux/rbtree.h> 12 #include <uapi/linux/bpf.h> 13 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org