tree: https://github.com/rgushchin/linux.git bpfsched.rfc head: f4c466accae6c27a4fbece80f8cec431f685a20c commit: 1bd61b2c1899a1a9e8ba44e9ac2958dea9847d82 [3/7] bpf: sched: add convenient helpers to identify sched entities config: sparc64-randconfig-r036-20210915 (attached as .config) compiler: sparc64-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/rgushchin/linux/commit/1bd61b2c1899a1a9e8ba44e9ac2958d... git remote add rgushchin https://github.com/rgushchin/linux.git git fetch --no-tags rgushchin bpfsched.rfc git checkout 1bd61b2c1899a1a9e8ba44e9ac2958dea9847d82 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross ARCH=sparc64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All error/warnings (new ones prefixed by >>): kernel/sched/bpf_sched.c: In function '____bpf_sched_entity_belongs_to_cgrp': 71 | cgrp = task_dfl_cgroup(task_of(se)); | ^~~~~~~~~~~~~~~ | task_group 71 | cgrp = task_dfl_cgroup(task_of(se)); | ^ 77 | for (level = cgrp->level; level; level--) | ^~ kernel/sched/bpf_sched.c:78:25: error: invalid use of undefined type 'struct cgroup' 78 | if (cgrp->ancestor_ids[level] == cgrpid) | ^~ cc1: some warnings being treated as errors vim +71 kernel/sched/bpf_sched.c 63 64 BPF_CALL_2(bpf_sched_entity_belongs_to_cgrp, struct sched_entity *, se, 65 u64, cgrpid) 66 { 67 struct cgroup *cgrp; 68 int level; 69 70 if (entity_is_task(se)) 72 #ifdef CONFIG_FAIR_GROUP_SCHED 73 else 74 cgrp = se->cfs_rq->tg->css.cgroup; 75 #endif 76 78 if (cgrp->ancestor_ids[level] == cgrpid) 79 return 1; 80 81 return 0; 82 } 83 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org