Hi Daniel, I love your patch! Perhaps something to improve: [auto build test WARNING on bpf-next/master] url: https://github.com/0day-ci/linux/commits/Daniel-Borkmann/BPF-support-for-global-data/20190301-112203 base: https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git master config: x86_64-randconfig-x017-201908 (attached as .config) compiler: gcc-8 (Debian 8.2.0-21) 8.2.0 reproduce: # save the attached .config to linux build tree make ARCH=x86_64 All warnings (new ones prefixed by >>): kernel//bpf/arraymap.c: In function 'array_map_direct_value_offset': >> kernel//bpf/arraymap.c:182:24: warning: initialization of 'long unsigned int' from 'char *' makes integer from pointer without a cast [-Wint-conversion] unsigned long base = array->value; ^~~~~ vim +182 kernel//bpf/arraymap.c 176 177 static int array_map_direct_value_offset(const struct bpf_map *map, u64 imm, 178 u32 *off) 179 { 180 struct bpf_array *array = container_of(map, struct bpf_array, map); 181 unsigned long range = map->value_size; > 182 unsigned long base = array->value; 183 unsigned long addr = imm; 184 185 if (map->max_entries != 1) 186 return -ENOENT; 187 if (addr < base || addr >= base + range) 188 return -ENOENT; 189 190 *off = addr - base; 191 return 0; 192 } 193 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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