Hi Kiran, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on bluetooth-next/master] [also build test WARNING on bluetooth/master v5.13-rc6 next-20210616] [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] url: https://github.com/0day-ci/linux/commits/Kiran-K/Bluetooth-btintel-Suppor... base: https://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next.git master config: arc-allyesconfig (attached as .config) compiler: arceb-elf-gcc (GCC) 9.3.0 reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # https://github.com/0day-ci/linux/commit/6e8c708932770f46284508ca6f027fa39... git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Kiran-K/Bluetooth-btintel-Support-Digital-N-RF-N-1-combination/20210616-183512 git checkout 6e8c708932770f46284508ca6f027fa39393389e # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=arc If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>): 486 | void btintel_parse_version_tlv(struct hci_dev *hdev, struct sk_buff *skb, | ^~~~~~~~~~~~~~~~~~~~~~~~~ vim +/btintel_parse_version_tlv +486 drivers/bluetooth/btintel.c 485 487 struct intel_version_tlv *version) 488 { 489 /* Consume Command Complete Status field */ 490 skb_pull(skb, sizeof(__u8)); 491 492 /* Event parameters contatin multiple TLVs. Read each of them 493 * and only keep the required data. Also, it use existing legacy 494 * version field like hw_platform, hw_variant, and fw_variant 495 * to keep the existing setup flow 496 */ 497 while (skb->len) { 498 struct intel_tlv *tlv; 499 500 tlv = (struct intel_tlv *)skb->data; 501 switch (tlv->type) { 502 case INTEL_TLV_CNVI_TOP: 503 version->cnvi_top = get_unaligned_le32(tlv->val); 504 break; 505 case INTEL_TLV_CNVR_TOP: 506 version->cnvr_top = get_unaligned_le32(tlv->val); 507 break; 508 case INTEL_TLV_CNVI_BT: 509 version->cnvi_bt = get_unaligned_le32(tlv->val); 510 break; 511 case INTEL_TLV_CNVR_BT: 512 version->cnvr_bt = get_unaligned_le32(tlv->val); 513 break; 514 case INTEL_TLV_DEV_REV_ID: 515 version->dev_rev_id = get_unaligned_le16(tlv->val); 516 break; 517 case INTEL_TLV_IMAGE_TYPE: 518 version->img_type = tlv->val[0]; 519 break; 520 case INTEL_TLV_TIME_STAMP: 521 version->timestamp = get_unaligned_le16(tlv->val); 522 break; 523 case INTEL_TLV_BUILD_TYPE: 524 version->build_type = tlv->val[0]; 525 break; 526 case INTEL_TLV_BUILD_NUM: 527 version->build_num = get_unaligned_le32(tlv->val); 528 break; 529 case INTEL_TLV_SECURE_BOOT: 530 version->secure_boot = tlv->val[0]; 531 break; 532 case INTEL_TLV_OTP_LOCK: 533 version->otp_lock = tlv->val[0]; 534 break; 535 case INTEL_TLV_API_LOCK: 536 version->api_lock = tlv->val[0]; 537 break; 538 case INTEL_TLV_DEBUG_LOCK: 539 version->debug_lock = tlv->val[0]; 540 break; 541 case INTEL_TLV_MIN_FW: 542 version->min_fw_build_nn = tlv->val[0]; 543 version->min_fw_build_cw = tlv->val[1]; 544 version->min_fw_build_yy = tlv->val[2]; 545 break; 546 case INTEL_TLV_LIMITED_CCE: 547 version->limited_cce = tlv->val[0]; 548 break; 549 case INTEL_TLV_SBE_TYPE: 550 version->sbe_type = tlv->val[0]; 551 break; 552 case INTEL_TLV_OTP_BDADDR: 553 memcpy(&version->otp_bd_addr, tlv->val, tlv->len); 554 break; 555 default: 556 /* Ignore rest of information */ 557 break; 558 } 559 /* consume the current tlv and move to next*/ 560 skb_pull(skb, tlv->len + sizeof(*tlv)); 561 } 562 } 563 EXPORT_SYMBOL_GPL(btintel_parse_version_tlv); 564 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org