Hi, 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 v5.15-rc5 next-20211011] [cannot apply to 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/tjiang-codeaurora-org/Bluetooth-... base: https://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next.git master config: openrisc-randconfig-s032-20211011 (attached as .config) compiler: or1k-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://github.com/0day-ci/linux/commit/ac46dc5565c49861c2439a5534e2e64ff... git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review tjiang-codeaurora-org/Bluetooth-btusb-Add-support-for-variant-WCN6855-by-using-different-nvm/20211011-184940 git checkout ac46dc5565c49861c2439a5534e2e64ff819eb60 # 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=openrisc SHELL=/bin/bash drivers/bluetooth/ 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/btusb.c:1900:18: sparse: sparse: cast to restricted __le16 drivers/bluetooth/btusb.c:1900:18: sparse: sparse: cast to restricted __le16 drivers/bluetooth/btusb.c:1900:18: sparse: sparse: cast to restricted __le16 drivers/bluetooth/btusb.c:1900:18: sparse: sparse: cast to restricted __le16 drivers/bluetooth/btusb.c:1904:18: sparse: sparse: cast to restricted __le16 drivers/bluetooth/btusb.c:1904:18: sparse: sparse: cast to restricted __le16 drivers/bluetooth/btusb.c:1904:18: sparse: sparse: cast to restricted __le16 drivers/bluetooth/btusb.c:1904:18: sparse: sparse: cast to restricted __le16 drivers/bluetooth/btusb.c:1908:18: sparse: sparse: cast to restricted __le16 drivers/bluetooth/btusb.c:1908:18: sparse: sparse: cast to restricted __le16 drivers/bluetooth/btusb.c:1908:18: sparse: sparse: cast to restricted __le16 drivers/bluetooth/btusb.c:1908:18: sparse: sparse: cast to restricted __le16 drivers/bluetooth/btusb.c:1912:18: sparse: sparse: cast to restricted __le16 drivers/bluetooth/btusb.c:1912:18: sparse: sparse: cast to restricted __le16 drivers/bluetooth/btusb.c:1912:18: sparse: sparse: cast to restricted __le16 drivers/bluetooth/btusb.c:1912:18: sparse: sparse: cast to restricted __le16 drivers/bluetooth/btusb.c:1916:18: sparse: sparse: cast to restricted __le16 drivers/bluetooth/btusb.c:1916:18: sparse: sparse: cast to restricted __le16 drivers/bluetooth/btusb.c:1916:18: sparse: sparse: cast to restricted __le16 drivers/bluetooth/btusb.c:1916:18: sparse: sparse: cast to restricted __le16 drivers/bluetooth/btusb.c:1922:18: sparse: sparse: cast to restricted __le16 drivers/bluetooth/btusb.c:1922:18: sparse: sparse: cast to restricted __le16 drivers/bluetooth/btusb.c:1922:18: sparse: sparse: cast to restricted __le16 drivers/bluetooth/btusb.c:1922:18: sparse: sparse: cast to restricted __le16 drivers/bluetooth/btusb.c:3359:28: sparse: sparse: cast to restricted __le32 drivers/bluetooth/btusb.c:3359:28: sparse: sparse: cast to restricted __le32 drivers/bluetooth/btusb.c:3359:28: sparse: sparse: cast to restricted __le32 drivers/bluetooth/btusb.c:3359:28: sparse: sparse: cast to restricted __le32 drivers/bluetooth/btusb.c:3359:28: sparse: sparse: cast to restricted __le32 drivers/bluetooth/btusb.c:3359:28: sparse: sparse: cast to restricted __le32 drivers/bluetooth/btusb.c:3388:18: sparse: sparse: restricted __le16 degrades to integer vim +3392 drivers/bluetooth/btusb.c 3381 3382 static void btusb_generate_qca_nvm_name(char *fwname, 3383 size_t max_size, 3384 struct qca_version *ver) 3385 { 3386 u32 rom_version = le32_to_cpu(ver->rom_version); 3387 3388 if (((ver->flag >> 8) & 0xff) == QCA_FLAG_MULTI_NVM) { 3389 u16 board_id = le16_to_cpu(ver->board_id); 3390 const char *variant; 3391 3393 case WCN6855_2_0_RAM_VERSION_GF: 3394 case WCN6855_2_1_RAM_VERSION_GF: 3395 variant = "_gf"; 3396 break; 3397 default: 3398 variant = ""; 3399 break; 3400 } 3401 3402 /* if boardid equal 0, use default nvm without suffix */ 3403 if (board_id == 0x0) { 3404 snprintf(fwname, max_size, "qca/nvm_usb_%08x%s.bin", 3405 rom_version, variant); 3406 } else { 3407 snprintf(fwname, max_size, "qca/nvm_usb_%08x%s_%04x.bin", 3408 rom_version, variant, board_id); 3409 } 3410 } else { 3411 snprintf(fwname, max_size, "qca/nvm_usb_%08x.bin", 3412 rom_version); 3413 } 3414 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org