tree: https://git.kernel.org/pub/scm/linux/kernel/git/dborkman/bpf.git pr/bpf-tail-call-rebased head: 12d95cef5a1d02eac7bca8b0c873d919d74c35cd commit: 12d95cef5a1d02eac7bca8b0c873d919d74c35cd [8/8] bpf: track constant keys in verifier to add poke descriptors config: i386-randconfig-a002-201945 (attached as .config) compiler: gcc-6 (Debian 6.3.0-18+deb9u1) 6.3.0 20170516 reproduce: git checkout 12d95cef5a1d02eac7bca8b0c873d919d74c35cd # save the attached .config to linux build tree make ARCH=i386 If you fix the issue, kindly add following tag Reported-by: kbuild test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): kernel//bpf/core.c: In function 'bpf_free_used_maps': bpf_map_put(map); ^~~~~~~~~~~ cc1: some warnings being treated as errors vim +/bpf_map_put +2057 kernel//bpf/core.c 2046 2047 static void bpf_free_used_maps(struct bpf_prog_aux *aux) 2048 { 2049 struct bpf_map *map; 2050 int i; 2051 2052 bpf_free_cgroup_storage(aux); 2053 for (i = 0; i < aux->used_map_cnt; i++) { 2054 map = aux->used_maps[i]; 2055 if (map->ops->map_poke_untrack) 2056 map->ops->map_poke_untrack(map, aux->prog); 2058 } 2059 kfree(aux->used_maps); 2060 } 2061 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org Intel Corporation