Hi Neeraj, kernel test robot noticed the following build warnings: [auto build test WARNING on bluetooth/master] [also build test WARNING on linus/master v6.14-rc5 next-20250307] [cannot apply to bluetooth-next/master] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Neeraj-Sanjay-Kale/Bluetooth-btnxpuart-Handle-bootloader-error-during-cmd5-and-cmd7/20250307-021228 base: https://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth.git master patch link: https://lore.kernel.org/r/20250306180931.57705-2-neeraj.sanjaykale%40nxp.com patch subject: [PATCH v2 2/3] Bluetooth: btnxpuart: Handle bootloader error during cmd5 and cmd7 config: microblaze-randconfig-r123-20250309 (https://download.01.org/0day-ci/archive/20250309/202503091936.x9Evtskg-lkp@xxxxxxxxx/config) compiler: microblaze-linux-gcc (GCC) 14.2.0 reproduce: (https://download.01.org/0day-ci/archive/20250309/202503091936.x9Evtskg-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/202503091936.x9Evtskg-lkp@xxxxxxxxx/ sparse warnings: (new ones prefixed by >>) >> drivers/bluetooth/btnxpuart.c:1113:24: sparse: sparse: restricted __le16 degrades to integer drivers/bluetooth/btnxpuart.c:1119:24: sparse: sparse: restricted __le16 degrades to integer vim +1113 drivers/bluetooth/btnxpuart.c 1089 1090 static int nxp_recv_fw_req_v3(struct hci_dev *hdev, struct sk_buff *skb) 1091 { 1092 struct btnxpuart_dev *nxpdev = hci_get_drvdata(hdev); 1093 struct v3_data_req *req; 1094 __u16 len = 0; 1095 __u32 offset; 1096 1097 if (!process_boot_signature(nxpdev)) 1098 goto free_skb; 1099 1100 req = skb_pull_data(skb, sizeof(*req)); 1101 if (!req || !nxpdev->fw) 1102 goto free_skb; 1103 1104 if (!req->error) { 1105 nxp_send_ack(NXP_ACK_V3, hdev); 1106 if (nxpdev->timeout_changed == cmd_sent) 1107 nxpdev->timeout_changed = changed; 1108 if (nxpdev->baudrate_changed == cmd_sent) 1109 nxpdev->baudrate_changed = changed; 1110 } else { 1111 nxp_handle_fw_download_error(hdev, req); 1112 if (nxpdev->timeout_changed == cmd_sent && > 1113 req->error == NXP_CRC_RX_ERROR) { 1114 nxpdev->fw_v3_offset_correction -= nxpdev->fw_v3_prev_sent; 1115 nxpdev->timeout_changed = not_changed; 1116 } 1117 /* After baudrate change, it is normal to get ACK Timeout error */ 1118 if (nxpdev->baudrate_changed == cmd_sent && 1119 req->error == NXP_CRC_RX_ERROR) { 1120 nxpdev->fw_v3_offset_correction -= nxpdev->fw_v3_prev_sent; 1121 nxpdev->baudrate_changed = not_changed; 1122 } 1123 goto free_skb; 1124 } 1125 1126 len = __le16_to_cpu(req->len); 1127 1128 if (nxpdev->timeout_changed != changed) { 1129 nxp_fw_change_timeout(hdev, len); 1130 nxpdev->timeout_changed = cmd_sent; 1131 goto free_skb; 1132 } 1133 1134 if (nxpdev->baudrate_changed != changed) { 1135 if (nxp_fw_change_baudrate(hdev, len)) { 1136 nxpdev->baudrate_changed = cmd_sent; 1137 serdev_device_set_baudrate(nxpdev->serdev, 1138 HCI_NXP_SEC_BAUDRATE); 1139 serdev_device_set_flow_control(nxpdev->serdev, true); 1140 nxpdev->current_baudrate = HCI_NXP_SEC_BAUDRATE; 1141 } 1142 goto free_skb; 1143 } 1144 1145 if (req->len == 0) { 1146 bt_dev_info(hdev, "FW Download Complete: %zu bytes", 1147 nxpdev->fw->size); 1148 clear_bit(BTNXPUART_FW_DOWNLOADING, &nxpdev->tx_state); 1149 wake_up_interruptible(&nxpdev->fw_dnld_done_wait_q); 1150 goto free_skb; 1151 } 1152 1153 offset = __le32_to_cpu(req->offset); 1154 if (offset < nxpdev->fw_v3_offset_correction) { 1155 /* This scenario should ideally never occur. But if it ever does, 1156 * FW is out of sync and needs a power cycle. 1157 */ 1158 bt_dev_err(hdev, "Something went wrong during FW download"); 1159 bt_dev_err(hdev, "Please power cycle and try again"); 1160 goto free_skb; 1161 } 1162 1163 nxpdev->fw_dnld_v3_offset = offset - nxpdev->fw_v3_offset_correction; 1164 serdev_device_write_buf(nxpdev->serdev, nxpdev->fw->data + 1165 nxpdev->fw_dnld_v3_offset, len); 1166 1167 free_skb: 1168 nxpdev->fw_v3_prev_sent = len; 1169 kfree_skb(skb); 1170 return 0; 1171 } 1172 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
