Hi Hao, Thank you for the patch! Yet something to improve: [auto build test ERROR on bpf-next/master] url: https://github.com/0day-ci/linux/commits/Hao-Luo/Extend-cgroup-interface-with-bpf/20220226-074615 base: https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git master config: m68k-defconfig (https://download.01.org/0day-ci/archive/20220226/202202261001.PWCTwlQp-lkp@xxxxxxxxx/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://github.com/0day-ci/linux/commit/ee74423719e2efb4efa7a4491920c78b60024ec7 git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Hao-Luo/Extend-cgroup-interface-with-bpf/20220226-074615 git checkout ee74423719e2efb4efa7a4491920c78b60024ec7 # 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=m68k SHELL=/bin/bash If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): kernel/bpf/cgroup_iter.c: In function 'cgroup_iter_seq_stop': >> kernel/bpf/cgroup_iter.c:60:17: error: implicit declaration of function 'cgroup_put'; did you mean 'cgroup_psi'? [-Werror=implicit-function-declaration] 60 | cgroup_put(v); | ^~~~~~~~~~ | cgroup_psi kernel/bpf/cgroup_iter.c: At top level: kernel/bpf/cgroup_iter.c:101:6: warning: no previous prototype for 'bpf_iter_cgroup_show_fdinfo' [-Wmissing-prototypes] 101 | void bpf_iter_cgroup_show_fdinfo(const struct bpf_iter_aux_info *aux, | ^~~~~~~~~~~~~~~~~~~~~~~~~~~ kernel/bpf/cgroup_iter.c: In function 'bpf_iter_cgroup_show_fdinfo': kernel/bpf/cgroup_iter.c:107:40: warning: format '%lu' expects argument of type 'long unsigned int', but argument 3 has type 'u64' {aka 'long long unsigned int'} [-Wformat=] 107 | seq_printf(seq, "cgroup_id:\t%lu\n", aux->cgroup_id); | ~~^ ~~~~~~~~~~~~~~ | | | | | u64 {aka long long unsigned int} | long unsigned int | %llu kernel/bpf/cgroup_iter.c: At top level: kernel/bpf/cgroup_iter.c:111:5: warning: no previous prototype for 'bpf_iter_cgroup_fill_link_info' [-Wmissing-prototypes] 111 | int bpf_iter_cgroup_fill_link_info(const struct bpf_iter_aux_info *aux, | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ cc1: some warnings being treated as errors vim +60 kernel/bpf/cgroup_iter.c 56 57 static void cgroup_iter_seq_stop(struct seq_file *seq, void *v) 58 { 59 if (v) > 60 cgroup_put(v); 61 } 62 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
