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* [linux-next:master 10044/10966] drivers/bluetooth/btintel.c:441:33: sparse: sparse: cast to restricted __le32
@ 2020-12-04 14:43 kernel test robot
  0 siblings, 0 replies; only message in thread
From: kernel test robot @ 2020-12-04 14:43 UTC (permalink / raw)
  To: Kiran K
  Cc: kbuild-all, Linux Memory Management List, Marcel Holtmann,
	Chethan T N, Srivatsa Ravishankar

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tree:   https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head:   2996bd3f6ca9ea529b40c369a94b247657abdb4d
commit: a63f23c9d139377833a139b179793fea79ee198f [10044/10966] Bluetooth: btintel: Fix endianness issue for TLV version information
config: microblaze-randconfig-s032-20201204 (attached as .config)
compiler: microblaze-linux-gcc (GCC) 9.3.0
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: v0.6.3-179-ga00755aa-dirty
        # https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=a63f23c9d139377833a139b179793fea79ee198f
        git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
        git fetch --no-tags linux-next master
        git checkout a63f23c9d139377833a139b179793fea79ee198f
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=microblaze 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>


"sparse warnings: (new ones prefixed by >>)"
>> drivers/bluetooth/btintel.c:441:33: sparse: sparse: cast to restricted __le32
>> drivers/bluetooth/btintel.c:441:33: sparse: sparse: cast to restricted __le32
>> drivers/bluetooth/btintel.c:441:33: sparse: sparse: cast to restricted __le32
>> drivers/bluetooth/btintel.c:441:33: sparse: sparse: cast to restricted __le32
>> drivers/bluetooth/btintel.c:441:33: sparse: sparse: cast to restricted __le32
>> drivers/bluetooth/btintel.c:441:33: sparse: sparse: cast to restricted __le32
   drivers/bluetooth/btintel.c:445:33: sparse: sparse: cast to restricted __le32
   drivers/bluetooth/btintel.c:445:33: sparse: sparse: cast to restricted __le32
   drivers/bluetooth/btintel.c:445:33: sparse: sparse: cast to restricted __le32
   drivers/bluetooth/btintel.c:445:33: sparse: sparse: cast to restricted __le32
   drivers/bluetooth/btintel.c:445:33: sparse: sparse: cast to restricted __le32
   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:449:33: sparse: sparse: cast to restricted __le32
   drivers/bluetooth/btintel.c:449:33: sparse: sparse: cast to restricted __le32
   drivers/bluetooth/btintel.c:449:33: sparse: sparse: cast to restricted __le32
   drivers/bluetooth/btintel.c:449:33: 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:453:33: sparse: sparse: cast to restricted __le32
   drivers/bluetooth/btintel.c:453:33: sparse: sparse: cast to restricted __le32
   drivers/bluetooth/btintel.c:453:33: sparse: sparse: cast to restricted __le32
   drivers/bluetooth/btintel.c:453:33: sparse: sparse: cast to restricted __le32
   drivers/bluetooth/btintel.c:453:33: sparse: sparse: cast to restricted __le32
>> drivers/bluetooth/btintel.c:457:33: sparse: sparse: cast to restricted __le16
>> drivers/bluetooth/btintel.c:457:33: sparse: sparse: cast to restricted __le16
>> drivers/bluetooth/btintel.c:457:33: sparse: sparse: cast to restricted __le16
>> drivers/bluetooth/btintel.c:457:33: sparse: sparse: cast to restricted __le16
   drivers/bluetooth/btintel.c:464:33: sparse: sparse: cast to restricted __le16
   drivers/bluetooth/btintel.c:464:33: sparse: sparse: cast to restricted __le16
   drivers/bluetooth/btintel.c:464:33: sparse: sparse: cast to restricted __le16
   drivers/bluetooth/btintel.c:464:33: sparse: sparse: cast to restricted __le16
   drivers/bluetooth/btintel.c:471:33: sparse: sparse: cast to restricted __le32
   drivers/bluetooth/btintel.c:471:33: sparse: sparse: cast to restricted __le32
   drivers/bluetooth/btintel.c:471:33: sparse: sparse: cast to restricted __le32
   drivers/bluetooth/btintel.c:471:33: sparse: sparse: cast to restricted __le32
   drivers/bluetooth/btintel.c:471:33: sparse: sparse: cast to restricted __le32
   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 =
 > 441					__le32_to_cpu(get_unaligned_le32(tlv->val));
   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 =
 > 457					__le16_to_cpu(get_unaligned_le16(tlv->val));
   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

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