Hi Luiz, Thank you for the patch! Yet something to improve: [auto build test ERROR on bluetooth-next/master] [also build test ERROR on next-20210316] [cannot apply to v5.12-rc3] [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/Luiz-Augusto-von-Dentz/Bluetooth... base: https://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next.git master config: x86_64-randconfig-a011-20210317 (attached as .config) compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project 8ef111222a3dd12a9175f69c3bff598c46e8bdf7) 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/a6cfd08052b877b40b8fe958148f5d0da... git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Luiz-Augusto-von-Dentz/Bluetooth-btintel-Check-firmware-version-before-download/20210316-014342 git checkout a6cfd08052b877b40b8fe958148f5d0da7e5cff7 # 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(a)intel.com&gt; All errors (new ones prefixed by >>): In file included from drivers/bluetooth/hci_ldisc.c:34: } ^ drivers/bluetooth/btintel.h:222:1: error: non-void function does not return a value [-Werror,-Wreturn-type] } ^ 2 errors generated. vim +217 drivers/bluetooth/btintel.h 973bb97e5aee56 Marcel Holtmann 2015-07-05 213 a6cfd08052b877 Lokendra Singh 2021-03-15 214 static inline int btintel_version_info(struct hci_dev *hdev, 0eee53cdd98577 Vincent Stehlé 2015-09-03 215 struct intel_version *ver) 7feb99e1308204 Marcel Holtmann 2015-07-05 216 { 7feb99e1308204 Marcel Holtmann 2015-07-05 @217 } 7feb99e1308204 Marcel Holtmann 2015-07-05 218 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org