Hi Lorenzo, kernel test robot noticed the following build warnings: [auto build test WARNING on c3a97ccaed80986fc3c0581661bf9170847d23ba] url: https://github.com/intel-lab-lkp/linux/commits/Lorenzo-Bianconi/net-airoha-Fix-TSO-support-for-header-cloned-skbs/20250213-234737 base: c3a97ccaed80986fc3c0581661bf9170847d23ba patch link: https://lore.kernel.org/r/20250213-airoha-en7581-flowtable-offload-v4-14-b69ca16d74db%40kernel.org patch subject: [PATCH net-next v4 14/16] net: airoha: Introduce flowtable offload support config: hexagon-allyesconfig (https://download.01.org/0day-ci/archive/20250214/202502142131.na71FjkW-lkp@xxxxxxxxx/config) compiler: clang version 18.1.8 (https://github.com/llvm/llvm-project 3b5b5c1ec4a3095ab096dd780e84d7ab81f3d7ff) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250214/202502142131.na71FjkW-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/202502142131.na71FjkW-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): >> drivers/net/ethernet/airoha/airoha_ppe.c:818:6: warning: variable 'err' is used uninitialized whenever 'if' condition is false [-Wsometimes-uninitialized] 818 | if (!eth->npu) | ^~~~~~~~~ drivers/net/ethernet/airoha/airoha_ppe.c:820:7: note: uninitialized use occurs here 820 | if (!err) | ^~~ drivers/net/ethernet/airoha/airoha_ppe.c:818:2: note: remove the 'if' if its condition is always true 818 | if (!eth->npu) | ^~~~~~~~~~~~~~ 819 | err = airoha_ppe_offload_setup(eth); drivers/net/ethernet/airoha/airoha_ppe.c:811:9: note: initialize the variable 'err' to silence this warning 811 | int err; | ^ | = 0 1 warning generated. vim +818 drivers/net/ethernet/airoha/airoha_ppe.c 803 804 int airoha_ppe_setup_tc_block_cb(enum tc_setup_type type, void *type_data, 805 void *cb_priv) 806 { 807 struct flow_cls_offload *cls = type_data; 808 struct net_device *dev = cb_priv; 809 struct airoha_gdm_port *port = netdev_priv(dev); 810 struct airoha_eth *eth = port->qdma->eth; 811 int err; 812 813 if (!tc_can_offload(dev) || type != TC_SETUP_CLSFLOWER) 814 return -EOPNOTSUPP; 815 816 mutex_lock(&flow_offload_mutex); 817 > 818 if (!eth->npu) 819 err = airoha_ppe_offload_setup(eth); 820 if (!err) 821 err = airoha_ppe_flow_offload_cmd(port, cls); 822 823 mutex_unlock(&flow_offload_mutex); 824 825 return err; 826 } 827 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
