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charset=us-ascii Content-Disposition: inline tree: https://git.kernel.org/pub/scm/linux/kernel/git/hare/scsi-devel.git ns-migration head: 1cd2ac8db713fdf42bc7bb10329d795f7aee4f1f commit: c99bbaa789ad558a900b867b376d68801acbbf9a [17/18] nvme: namespace migration config: hexagon-randconfig-002-20250403 (https://download.01.org/0day-ci/archive/20250403/202504031140.v7ySR5D9-lkp@intel.com/config) compiler: clang version 21.0.0git (https://github.com/llvm/llvm-project 7eccafc3c84606587a175c0a8c1ebea6e4fb21cd) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250403/202504031140.v7ySR5D9-lkp@intel.com/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 | Closes: https://lore.kernel.org/oe-kbuild-all/202504031140.v7ySR5D9-lkp@intel.com/ All warnings (new ones prefixed by >>): >> drivers/nvme/host/multipath.c:709:11: warning: variable 'old_instance' set but not used [-Wunused-but-set-variable] 709 | int ret, old_instance; | ^ 1 warning generated. vim +/old_instance +709 drivers/nvme/host/multipath.c 705 706 int nvme_mpath_move_head(struct nvme_ns_head *head, struct nvme_subsystem *subsys) 707 { 708 struct nvme_subsystem *old_subsys = head->subsys; > 709 int ret, old_instance; 710 711 ret = ida_alloc_min(&subsys->ns_ida, 1, GFP_KERNEL); 712 if (ret < 0) 713 return ret; 714 715 mutex_lock(&old_subsys->lock); 716 list_del_init(&head->entry); 717 mutex_unlock(&old_subsys->lock); 718 list_add_tail(&head->entry, &subsys->nsheads); 719 head->subsys = subsys; 720 old_instance = head->instance; 721 head->instance = ret; 722 ret = device_move(disk_to_dev(head->disk), &subsys->dev, 723 DPM_ORDER_DEV_AFTER_PARENT); 724 if (ret) { 725 mutex_lock(&old_subsys->lock); 726 list_del_init(&head->entry); 727 list_add_tail(&head->entry, &old_subsys->nsheads); 728 head->subsys = old_subsys; 729 mutex_unlock(&old_subsys->lock); 730 } else { 731 ida_free(&old_subsys->ns_ida, head->instance); 732 } 733 return ret; 734 } 735 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki