Hi Nikita, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on dtor-input/next] [also build test WARNING on robh/for-next hid/for-next linus/master v5.15 next-20211109] [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/Nikita-Travkin/Add-touch-keys-su... base: https://git.kernel.org/pub/scm/linux/kernel/git/dtor/input.git next config: i386-randconfig-s001-20211027 (attached as .config) compiler: gcc-9 (Debian 9.3.0-22) 9.3.0 reproduce: # apt-get install sparse # sparse version: v0.6.4-dirty # https://github.com/0day-ci/linux/commit/4d4045dad42ed26b0dba61827ffddcd45... git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Nikita-Travkin/Add-touch-keys-support-to-the-Zinitix-touch-driver/20211028-031652 git checkout 4d4045dad42ed26b0dba61827ffddcd453601895 # 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/input/touchscreen/ 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/input/touchscreen/zinitix.c:371:24: sparse: sparse: restricted __le16 degrades to integer vim +350 drivers/input/touchscreen/zinitix.c 343 344 static void zinitix_report_keys(struct bt541_ts_data *bt541, __le16 icon_events) 345 { 346 int i; 347 348 for (i = 0; i < bt541->num_keycodes; i++) 349 input_report_key(bt541->input_dev, 351 } 352 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org