Hi Fan, kernel test robot noticed the following build warnings: [auto build test WARNING on 5e95c0a3a55aea490420bd6994805edb050cc86b] url: https://github.com/intel-lab-lkp/linux/commits/Fan-Gong/hinic3-Async-Event-Queue-interfaces/20250722-152434 base: 5e95c0a3a55aea490420bd6994805edb050cc86b patch link: https://lore.kernel.org/r/bea50c6c329c5ffb77cfe059e07eeed187619346.1753152592.git.zhuyikai1%40h-partners.com patch subject: [PATCH net-next v10 1/8] hinic3: Async Event Queue interfaces config: x86_64-allyesconfig (https://download.01.org/0day-ci/archive/20250723/202507231813.7ti3bdJj-lkp@xxxxxxxxx/config) 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/20250723/202507231813.7ti3bdJj-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/202507231813.7ti3bdJj-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): >> drivers/net/ethernet/huawei/hinic3/hinic3_eqs.c:77:17: warning: variable 'cb_state' set but not used [-Wunused-but-set-variable] 77 | unsigned long *cb_state; | ^ drivers/net/ethernet/huawei/hinic3/hinic3_eqs.c:91:17: warning: variable 'cb_state' set but not used [-Wunused-but-set-variable] 91 | unsigned long *cb_state; | ^ drivers/net/ethernet/huawei/hinic3/hinic3_eqs.c:127:17: warning: variable 'cb_state' set but not used [-Wunused-but-set-variable] 127 | unsigned long *cb_state; | ^ 3 warnings generated. vim +/cb_state +77 drivers/net/ethernet/huawei/hinic3/hinic3_eqs.c 71 72 int hinic3_aeq_register_cb(struct hinic3_hwdev *hwdev, 73 enum hinic3_aeq_type event, 74 hinic3_aeq_event_cb hwe_cb) 75 { 76 struct hinic3_aeqs *aeqs; > 77 unsigned long *cb_state; 78 79 aeqs = hwdev->aeqs; 80 cb_state = &aeqs->aeq_cb_state[event]; 81 aeqs->aeq_cb[event] = hwe_cb; 82 spin_lock_init(&aeqs->aeq_lock); 83 84 return 0; 85 } 86 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki