tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: 4b48fa45408a2757255bdd0c640c1f693b424fe4 commit: b7261a251299bfdababe53a848084af2ecfcc1ae [3482/3482] xcu: Add base NPU driver support config: arm64-randconfig-r111-20251206 (https://download.01.org/0day-ci/archive/20251208/202512080408.Kma3SOA7-lkp@i...) compiler: clang version 20.1.8 (https://github.com/llvm/llvm-project 87f0227cb60147a26a1eeb4fb06e3b505e9c7261) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251208/202512080408.Kma3SOA7-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/202512080408.Kma3SOA7-lkp@intel.com/ sparse warnings: (new ones prefixed by >>) drivers/xcu/xcu_group.c:25:18: sparse: sparse: symbol 'xsched_cu_mgr' was not declared. Should it be static?

...

drivers/xcu/xcu_group.c:41:5: sparse: sparse: symbol '__xcu_group_attach' was not declared. Should it be static?

vim +/__xcu_group_attach +41 drivers/xcu/xcu_group.c 40

41 int __xcu_group_attach(struct xcu_group *new_group, 42 struct xcu_group *previous_group) 43 { 44 int id = new_group->id; 45 46 if (id == -1) 47 id = idr_alloc(&previous_group->next_layer, new_group, 0, 48 INT_MAX, GFP_KERNEL); 49 else 50 id = idr_alloc(&previous_group->next_layer, new_group, id, 51 id + 1, GFP_KERNEL); 52 53 if (id < 0) { 54 XSCHED_ERR("Fail to attach xcu_group: id conflict @ %s\n", 55 __func__); 56 return -EEXIST; 57 } 58 new_group->id = id; 59 new_group->previous_layer = previous_group; 60 61 return 0; 62 } 63

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