Re: [PATCH v1] Bluetooth: btqca: Add support to read FW build version for WCN3991 BTSoC

[kernel test robot]

Hi Venkata,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on bluetooth-next/master]
[also build test WARNING on linux/master linus/master bluetooth/master v5.10-rc4 next-20201117]
[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/Venkata-Lakshmi-Narayana-Gubba/Bluetooth-btqca-Add-support-to-read-FW-build-version-for-WCN3991-BTSoC/20201118-013220
base:   https://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next.git master
config: x86_64-randconfig-a012-20201116 (attached as .config)
compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project ace9653c11c6308401dcda2e8b26bf97e6e66e30)
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
        # install x86_64 cross compiling tool for clang build
        # apt-get install binutils-x86-64-linux-gnu
        # https://github.com/0day-ci/linux/commit/773b13ede05cd62b2e429541685f7be9a9ec1e7b
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Venkata-Lakshmi-Narayana-Gubba/Bluetooth-btqca-Add-support-to-read-FW-build-version-for-WCN3991-BTSoC/20201118-013220
        git checkout 773b13ede05cd62b2e429541685f7be9a9ec1e7b
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64 

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

All warnings (new ones prefixed by >>):

>> drivers/bluetooth/btqca.c:104:5: warning: no previous prototype for function 'qca_read_fw_build_info' [-Wmissing-prototypes]
   int qca_read_fw_build_info(struct hci_dev *hdev)
       ^
   drivers/bluetooth/btqca.c:104:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
   int qca_read_fw_build_info(struct hci_dev *hdev)
   ^
   static 
   1 warning generated.

vim +/qca_read_fw_build_info +104 drivers/bluetooth/btqca.c

   103	
 > 104	int qca_read_fw_build_info(struct hci_dev *hdev)
   105	{
   106		struct sk_buff *skb;
   107		struct edl_event_hdr *edl;
   108		char cmd;
   109		int err = 0;
   110		char build_label[QCA_FW_BUILD_VER_LEN];
   111		int build_lbl_len;
   112	
   113		bt_dev_dbg(hdev, "QCA read fw build info");
   114	
   115		cmd = EDL_GET_BUILD_INFO_CMD;
   116		skb = __hci_cmd_sync_ev(hdev, EDL_PATCH_CMD_OPCODE, EDL_PATCH_CMD_LEN,
   117					&cmd, HCI_EV_VENDOR, HCI_INIT_TIMEOUT);
   118		if (IS_ERR(skb)) {
   119			err = PTR_ERR(skb);
   120			bt_dev_err(hdev, "Reading QCA fw build info failed (%d)",
   121				   err);
   122			return err;
   123		}
   124	
   125		edl = (struct edl_event_hdr *)(skb->data);
   126		if (!edl) {
   127			bt_dev_err(hdev, "QCA read fw build info with no header");
   128			err = -EILSEQ;
   129			goto out;
   130		}
   131	
   132		if (edl->cresp != EDL_CMD_REQ_RES_EVT ||
   133		    edl->rtype != EDL_GET_BUILD_INFO_CMD) {
   134			bt_dev_err(hdev, "QCA Wrong packet received %d %d", edl->cresp,
   135				   edl->rtype);
   136			err = -EIO;
   137			goto out;
   138		}
   139	
   140		build_lbl_len = edl->data[0];
   141		memcpy(build_label, &edl->data[1], build_lbl_len);
   142		*(build_label + build_lbl_len) = '\0';
   143	
   144		bt_dev_info(hdev, "BT SoC FW Build info: %s", build_label);
   145	
   146	out:
   147		kfree_skb(skb);
   148		if (err)
   149			bt_dev_err(hdev, "QCA read fw build info failed (%d)", err);
   150	
   151		return err;
   152	}
   153	

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx

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