tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: debe436e77c72fcee804fb867f275e6d31aa999c commit: 66500bbc7d6b4915cae86d64c72591cb70698c9d Bluetooth: btintel: Fix endianness issue for TLV version information date: 11 months ago config: riscv-randconfig-s031-20211109 (attached as .config) compiler: riscv64-linux-gcc (GCC) 11.2.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # apt-get install sparse # sparse version: v0.6.4-dirty # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit... git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout 66500bbc7d6b4915cae86d64c72591cb70698c9d # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=riscv SHELL=/bin/bash block/ drivers/bluetooth/ drivers/hid/ drivers/hwmon/ drivers/i2c/busses/ drivers/message/fusion/ drivers/net/ethernet/ drivers/net/wireless/intel/iwlwifi/ drivers/pci/ drivers/remoteproc/ drivers/rtc/ drivers/staging/rts5208/ drivers/staging/vc04_services/ drivers/tty/serial/ drivers/vdpa/ drivers/video/fbdev/ net/qrtr/ net/sched/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; sparse warnings: (new ones prefixed by >>) drivers/bluetooth/btintel.c:445:33: sparse: sparse: cast to restricted __le32 drivers/bluetooth/btintel.c:449:33: sparse: sparse: cast to restricted __le32 drivers/bluetooth/btintel.c:453:33: sparse: sparse: cast to restricted __le32 drivers/bluetooth/btintel.c:464:33: sparse: sparse: cast to restricted __le16 drivers/bluetooth/btintel.c:471:33: sparse: sparse: cast to restricted __le32 vim +441 drivers/bluetooth/btintel.c 403 404 int btintel_read_version_tlv(struct hci_dev *hdev, struct intel_version_tlv *version) 405 { 406 struct sk_buff *skb; 407 const u8 param[1] = { 0xFF }; 408 409 if (!version) 410 return -EINVAL; 411 412 skb = __hci_cmd_sync(hdev, 0xfc05, 1, param, HCI_CMD_TIMEOUT); 413 if (IS_ERR(skb)) { 414 bt_dev_err(hdev, "Reading Intel version information failed (%ld)", 415 PTR_ERR(skb)); 416 return PTR_ERR(skb); 417 } 418 419 if (skb->data[0]) { 420 bt_dev_err(hdev, "Intel Read Version command failed (%02x)", 421 skb->data[0]); 422 kfree_skb(skb); 423 return -EIO; 424 } 425 426 /* Consume Command Complete Status field */ 427 skb_pull(skb, 1); 428 429 /* Event parameters contatin multiple TLVs. Read each of them 430 * and only keep the required data. Also, it use existing legacy 431 * version field like hw_platform, hw_variant, and fw_variant 432 * to keep the existing setup flow 433 */ 434 while (skb->len) { 435 struct intel_tlv *tlv; 436 437 tlv = (struct intel_tlv *)skb->data; 438 switch (tlv->type) { 439 case INTEL_TLV_CNVI_TOP: 440 version->cnvi_top = 442 break; 443 case INTEL_TLV_CNVR_TOP: 444 version->cnvr_top = 445 __le32_to_cpu(get_unaligned_le32(tlv->val)); 446 break; 447 case INTEL_TLV_CNVI_BT: 448 version->cnvi_bt = 449 __le32_to_cpu(get_unaligned_le32(tlv->val)); 450 break; 451 case INTEL_TLV_CNVR_BT: 452 version->cnvr_bt = 453 __le32_to_cpu(get_unaligned_le32(tlv->val)); 454 break; 455 case INTEL_TLV_DEV_REV_ID: 456 version->dev_rev_id = 458 break; 459 case INTEL_TLV_IMAGE_TYPE: 460 version->img_type = tlv->val[0]; 461 break; 462 case INTEL_TLV_TIME_STAMP: 463 version->timestamp = 464 __le16_to_cpu(get_unaligned_le16(tlv->val)); 465 break; 466 case INTEL_TLV_BUILD_TYPE: 467 version->build_type = tlv->val[0]; 468 break; 469 case INTEL_TLV_BUILD_NUM: 470 version->build_num = 471 __le32_to_cpu(get_unaligned_le32(tlv->val)); 472 break; 473 case INTEL_TLV_SECURE_BOOT: 474 version->secure_boot = tlv->val[0]; 475 break; 476 case INTEL_TLV_OTP_LOCK: 477 version->otp_lock = tlv->val[0]; 478 break; 479 case INTEL_TLV_API_LOCK: 480 version->api_lock = tlv->val[0]; 481 break; 482 case INTEL_TLV_DEBUG_LOCK: 483 version->debug_lock = tlv->val[0]; 484 break; 485 case INTEL_TLV_MIN_FW: 486 version->min_fw_build_nn = tlv->val[0]; 487 version->min_fw_build_cw = tlv->val[1]; 488 version->min_fw_build_yy = tlv->val[2]; 489 break; 490 case INTEL_TLV_LIMITED_CCE: 491 version->limited_cce = tlv->val[0]; 492 break; 493 case INTEL_TLV_SBE_TYPE: 494 version->sbe_type = tlv->val[0]; 495 break; 496 case INTEL_TLV_OTP_BDADDR: 497 memcpy(&version->otp_bd_addr, tlv->val, tlv->len); 498 break; 499 default: 500 /* Ignore rest of information */ 501 break; 502 } 503 /* consume the current tlv and move to next*/ 504 skb_pull(skb, tlv->len + sizeof(*tlv)); 505 } 506 507 kfree_skb(skb); 508 return 0; 509 } 510 EXPORT_SYMBOL_GPL(btintel_read_version_tlv); 511 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org