Hi Keith, kernel test robot noticed the following build warnings: [auto build test WARNING on axboe-block/for-next] [also build test WARNING on next-20241206] [cannot apply to brauner-vfs/vfs.all hch-configfs/for-next linus/master v6.13-rc1] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Keith-Busch/fs-add-write-stream-information-to-statx/20241207-063826 base: https://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux-block.git for-next patch link: https://lore.kernel.org/r/20241206221801.790690-12-kbusch%40meta.com patch subject: [PATCHv12 11/12] nvme: register fdp parameters with the block layer config: i386-buildonly-randconfig-001-20241207 (https://download.01.org/0day-ci/archive/20241207/202412071144.9uXFLnls-lkp@xxxxxxxxx/config) compiler: clang version 19.1.3 (https://github.com/llvm/llvm-project ab51eccf88f5321e7c60591c5546b254b6afab99) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241207/202412071144.9uXFLnls-lkp@xxxxxxxxx/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202412071144.9uXFLnls-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): In file included from drivers/nvme/host/core.c:8: In file included from include/linux/blkdev.h:9: In file included from include/linux/blk_types.h:10: In file included from include/linux/bvec.h:10: In file included from include/linux/highmem.h:8: In file included from include/linux/cacheflush.h:5: In file included from arch/x86/include/asm/cacheflush.h:5: In file included from include/linux/mm.h:2223: include/linux/vmstat.h:518:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion] 518 | return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_" | ~~~~~~~~~~~ ^ ~~~ >> drivers/nvme/host/core.c:2187:11: warning: variable 'i' is uninitialized when used here [-Wuninitialized] 2187 | } while (i++ < fdp_idx); | ^ drivers/nvme/host/core.c:2160:7: note: initialize the variable 'i' to silence this warning 2160 | int i, n, ret; | ^ | = 0 2 warnings generated. vim +/i +2187 drivers/nvme/host/core.c 2153 2154 static int nvme_check_fdp(struct nvme_ns *ns, struct nvme_ns_info *info, 2155 u8 fdp_idx) 2156 { 2157 struct nvme_fdp_config_log hdr, *h; 2158 struct nvme_fdp_config_desc *desc; 2159 size_t size = sizeof(hdr); 2160 int i, n, ret; 2161 void *log; 2162 2163 info->runs = 0; 2164 ret = nvme_get_log_lsi(ns->ctrl, 0, NVME_LOG_FDP_CONFIGS, 0, NVME_CSI_NVM, 2165 (void *)&hdr, size, 0, info->endgid); 2166 if (ret) 2167 return ret; 2168 2169 size = le32_to_cpu(hdr.sze); 2170 h = kzalloc(size, GFP_KERNEL); 2171 if (!h) 2172 return 0; 2173 2174 ret = nvme_get_log_lsi(ns->ctrl, 0, NVME_LOG_FDP_CONFIGS, 0, NVME_CSI_NVM, 2175 h, size, 0, info->endgid); 2176 if (ret) 2177 goto out; 2178 2179 n = le16_to_cpu(h->numfdpc) + 1; 2180 if (fdp_idx > n) 2181 goto out; 2182 2183 log = h + 1; 2184 do { 2185 desc = log; 2186 log += le16_to_cpu(desc->dsze); > 2187 } while (i++ < fdp_idx); 2188 2189 info->runs = le64_to_cpu(desc->runs); 2190 out: 2191 kfree(h); 2192 return ret; 2193 } 2194 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
