Hi Zijun, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on bluetooth-next/master] [also build test WARNING on linus/master v5.14 next-20210902] [cannot apply to linux/master bluetooth/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] url: https://github.com/0day-ci/linux/commits/Zijun-Hu/Bluetooth-btusb-Add-support-using-different-nvm-for-variant-WCN6855-controller/20210902-165857 base: https://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next.git master config: i386-randconfig-s002-20210831 (attached as .config) compiler: gcc-9 (Debian 9.3.0-22) 9.3.0 reproduce: # apt-get install sparse # sparse version: v0.6.3-348-gf0e6938b-dirty # https://github.com/0day-ci/linux/commit/971383be35e3681a6e8b1e85ad3c01f21f4e0076 git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Zijun-Hu/Bluetooth-btusb-Add-support-using-different-nvm-for-variant-WCN6855-controller/20210902-165857 git checkout 971383be35e3681a6e8b1e85ad3c01f21f4e0076 # save the attached .config to linux build tree make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=i386 SHELL=/bin/bash drivers/bluetooth/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> sparse warnings: (new ones prefixed by >>) drivers/bluetooth/btusb.c:1871:18: sparse: sparse: cast to restricted __le16 drivers/bluetooth/btusb.c:1875:18: sparse: sparse: cast to restricted __le16 drivers/bluetooth/btusb.c:1879:18: sparse: sparse: cast to restricted __le16 drivers/bluetooth/btusb.c:1883:18: sparse: sparse: cast to restricted __le16 drivers/bluetooth/btusb.c:1887:18: sparse: sparse: cast to restricted __le16 drivers/bluetooth/btusb.c:1893:18: sparse: sparse: cast to restricted __le16 drivers/bluetooth/btusb.c:3330:28: sparse: sparse: cast to restricted __le32 drivers/bluetooth/btusb.c:3362:18: sparse: sparse: restricted __le16 degrades to integer >> drivers/bluetooth/btusb.c:3386:20: sparse: sparse: restricted __le32 degrades to integer >> drivers/bluetooth/btusb.c:3386:20: sparse: sparse: restricted __le32 degrades to integer vim +3386 drivers/bluetooth/btusb.c 3377 3378 static int btusb_setup_qca_load_nvm(struct hci_dev *hdev, 3379 struct qca_version *ver, 3380 const struct qca_device_info *info) 3381 { 3382 const struct firmware *fw; 3383 char fwname[64]; 3384 int err; 3385 > 3386 switch (ver->ram_version) { 3387 case WCN6855_2_0_RAM_VERSION_GF: 3388 case WCN6855_2_1_RAM_VERSION_GF: 3389 btusb_generate_qca_nvm_name(fwname, sizeof(fwname), ver, "gf"); 3390 break; 3391 default: 3392 btusb_generate_qca_nvm_name(fwname, sizeof(fwname), ver, ""); 3393 break; 3394 } 3395 3396 err = request_firmware(&fw, fwname, &hdev->dev); 3397 if (err) { 3398 bt_dev_err(hdev, "failed to request NVM file: %s (%d)", 3399 fwname, err); 3400 return err; 3401 } 3402 3403 bt_dev_info(hdev, "using NVM file: %s", fwname); 3404 3405 err = btusb_setup_qca_download_fw(hdev, fw, info->nvm_hdr); 3406 3407 release_firmware(fw); 3408 3409 return err; 3410 } 3411 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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