[kbuild-all] drivers/net/wireless/intel/iwlwifi/pcie/drv.c:1049 iwl_pci_probe() warn: mask and shift to zero

tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: bb5baaa9238ecf8f13b112232c7bbe0d3d598ee8 commit: d6f2134a383168bfb28ac458f7e4311e58482439 iwlwifi: add mac/rf types and 160MHz to the device tables date: 5 months ago config: parisc-randconfig-m031-20200811 (attached as .config) compiler: hppa-linux-gcc (GCC) 9.3.0 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; New smatch warnings: drivers/net/wireless/intel/iwlwifi/pcie/drv.c:1049 iwl_pci_probe() warn: mask and shift to zero Old smatch warnings: drivers/net/wireless/intel/iwlwifi/pcie/drv.c:1035 iwl_pci_probe() warn: we never enter this loop vim +1049 drivers/net/wireless/intel/iwlwifi/pcie/drv.c 1003 1004 static int iwl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent) 1005 { 1006 const struct iwl_cfg_trans_params *trans = 1007 (struct iwl_cfg_trans_params *)(ent->driver_data); 1008 const struct iwl_cfg *cfg_7265d __maybe_unused = NULL; 1009 struct iwl_trans *iwl_trans; 1010 struct iwl_trans_pcie *trans_pcie; 1011 unsigned long flags; 1012 int i, ret; 1013 /* 1014 * This is needed for backwards compatibility with the old 1015 * tables, so we don't need to change all the config structs 1016 * at the same time. The cfg is used to compare with the old 1017 * full cfg structs. 1018 */ 1019 const struct iwl_cfg *cfg = (struct iwl_cfg *)(ent->driver_data); 1020 1021 /* make sure trans is the first element in iwl_cfg */ 1022 BUILD_BUG_ON(offsetof(struct iwl_cfg, trans)); 1023 1024 iwl_trans = iwl_trans_pcie_alloc(pdev, ent, trans); 1025 if (IS_ERR(iwl_trans)) 1026 return PTR_ERR(iwl_trans); 1027 1028 trans_pcie = IWL_TRANS_GET_PCIE_TRANS(iwl_trans); 1029 1030 /* the trans_cfg should never change, so set it now */ 1031 iwl_trans->trans_cfg = trans; 1032 1033 iwl_trans->hw_rf_id = iwl_read32(iwl_trans, CSR_HW_RF_ID); 1034 1035 for (i = 0; i < ARRAY_SIZE(iwl_dev_info_table); i++) { 1036 const struct iwl_dev_info *dev_info = &iwl_dev_info_table[i]; 1037 if ((dev_info->device == (u16)IWL_CFG_ANY || 1038 dev_info->device == pdev->device) && 1039 (dev_info->subdevice == (u16)IWL_CFG_ANY || 1040 dev_info->subdevice == pdev->subsystem_device) && 1041 (dev_info->mac_type == (u16)IWL_CFG_ANY || 1042 dev_info->mac_type == 1043 CSR_HW_REV_TYPE(iwl_trans->hw_rev)) && 1044 (dev_info->rf_type == (u16)IWL_CFG_ANY || 1045 dev_info->rf_type == 1046 CSR_HW_RFID_TYPE(iwl_trans->hw_rf_id)) && 1047 (dev_info->no_160 == (u8)IWL_CFG_ANY || 1048 dev_info->no_160 == 1050 iwl_trans->cfg = dev_info->cfg; 1051 iwl_trans->name = dev_info->name; 1052 goto found; 1053 } 1054 } 1055 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org