Hi Yu, FYI, the error/warning still remains. tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: 34aca7dce8183a6832361f564e5d70abce03e657 commit: 1bf8f90fb90c600d9f372e6be4ef251cc8905f04 [2846/2846] block-io-hierarchy: core hierarchy stats and iodump implementation config: arm64-randconfig-r121-20250904 (https://download.01.org/0day-ci/archive/20250904/202509041845.IkUFt5vT-lkp@i...) compiler: clang version 16.0.6 (https://github.com/llvm/llvm-project 7cbf1a2591520c2491aa35339f227775f4d3adf6) reproduce: (https://download.01.org/0day-ci/archive/20250904/202509041845.IkUFt5vT-lkp@i...) 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@intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202509041845.IkUFt5vT-lkp@intel.com/ All errors (new ones prefixed by >>):

...

block/blk-io-hierarchy/iodump.c:188:17: error: no member named 'bi_blkg' in 'struct bio' blkg_path(bio->bi_blkg, path, PATH_LEN); ~~~ ^ 1 error generated.

Kconfig warnings: (for reference only) WARNING: unmet direct dependencies detected for PGP_KEY_PARSER Depends on [n]: CRYPTO [=y] && ASYMMETRIC_KEY_TYPE [=y] && ASYMMETRIC_PUBLIC_KEY_SUBTYPE [=n] Selected by [y]: - PGP_PRELOAD [=y] && CRYPTO [=y] && ASYMMETRIC_KEY_TYPE [=y] vim +188 block/blk-io-hierarchy/iodump.c 179 180 static void __hierarchy_show_bio(struct seq_file *m, struct bio *bio, 181 enum stage_group stage, u64 duration) 182 { 183 char rwbs[RWB_LEN]; 184 char path[PATH_LEN] = {0}; 185 struct task_struct *task = get_pid_task(bio->pid, PIDTYPE_PID); 186 187 blk_fill_rwbs(rwbs, bio->bi_opf);

188 blkg_path(bio->bi_blkg, path, PATH_LEN); 189 190 seq_printf(m, "%s-%d %s stage %s bio %s %llu + %u cgroup %s started %llu ns ago\n", 191 task ? task->comm : "null", task ? task->pid : 0, 192 bio->bi_bdev->bd_disk->disk_name, 193 hierarchy_stage_name(stage), rwbs, bio->bi_iter.bi_sector, 194 bio_sectors(bio), path, duration); 195 196 if (task) 197 put_task_struct(task); 198 } 199

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