Hi Deepanshu, kernel test robot noticed the following build warnings: [auto build test WARNING on staging/staging-testing] url: https://github.com/intel-lab-lkp/linux/commits/Deepanshu-Kartikey/staging-fbtft-fbtft-bus-c-added-params/20230408-161947 patch link: https://lore.kernel.org/r/20230408081817.81562-1-kartikey406%40gmail.com patch subject: [PATCH] staging: fbtft: fbtft-bus.c added params config: i386-randconfig-s001-20230403 (https://download.01.org/0day-ci/archive/20230409/202304090139.b8XZpHpu-lkp@xxxxxxxxx/config) compiler: gcc-11 (Debian 11.3.0-8) 11.3.0 reproduce: # apt-get install sparse # sparse version: v0.6.4-39-gce1a6720-dirty # https://github.com/intel-lab-lkp/linux/commit/038bedbb2c34ffc5e5ce77d5f49811778be8d631 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Deepanshu-Kartikey/staging-fbtft-fbtft-bus-c-added-params/20230408-161947 git checkout 038bedbb2c34ffc5e5ce77d5f49811778be8d631 # save the config file mkdir build_dir && cp config build_dir/.config make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=i386 olddefconfig make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=i386 SHELL=/bin/bash drivers/staging/fbtft/ If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Link: https://lore.kernel.org/oe-kbuild-all/202304090139.b8XZpHpu-lkp@xxxxxxxxx/ sparse warnings: (new ones prefixed by >>) >> drivers/staging/fbtft/fbtft-bus.c:65:1: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned char [usertype] @@ got restricted __be16 [usertype] @@ drivers/staging/fbtft/fbtft-bus.c:65:1: sparse: expected unsigned char [usertype] drivers/staging/fbtft/fbtft-bus.c:65:1: sparse: got restricted __be16 [usertype] >> drivers/staging/fbtft/fbtft-bus.c:65:1: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned char [usertype] @@ got restricted __be16 [usertype] @@ drivers/staging/fbtft/fbtft-bus.c:65:1: sparse: expected unsigned char [usertype] drivers/staging/fbtft/fbtft-bus.c:65:1: sparse: got restricted __be16 [usertype] >> drivers/staging/fbtft/fbtft-bus.c:65:1: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned char [usertype] @@ got restricted __be16 [usertype] @@ drivers/staging/fbtft/fbtft-bus.c:65:1: sparse: expected unsigned char [usertype] drivers/staging/fbtft/fbtft-bus.c:65:1: sparse: got restricted __be16 [usertype] drivers/staging/fbtft/fbtft-bus.c:67:1: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned short [usertype] @@ got restricted __be16 [usertype] @@ drivers/staging/fbtft/fbtft-bus.c:67:1: sparse: expected unsigned short [usertype] drivers/staging/fbtft/fbtft-bus.c:67:1: sparse: got restricted __be16 [usertype] drivers/staging/fbtft/fbtft-bus.c:67:1: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned short [usertype] @@ got restricted __be16 [usertype] @@ drivers/staging/fbtft/fbtft-bus.c:67:1: sparse: expected unsigned short [usertype] drivers/staging/fbtft/fbtft-bus.c:67:1: sparse: got restricted __be16 [usertype] drivers/staging/fbtft/fbtft-bus.c:67:1: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned short [usertype] @@ got restricted __be16 [usertype] @@ drivers/staging/fbtft/fbtft-bus.c:67:1: sparse: expected unsigned short [usertype] drivers/staging/fbtft/fbtft-bus.c:67:1: sparse: got restricted __be16 [usertype] vim +65 drivers/staging/fbtft/fbtft-bus.c 64 > 65 define_fbtft_write_reg(fbtft_write_reg8_bus8, u8, u8, cpu_to_be16); 66 define_fbtft_write_reg(fbtft_write_reg16_bus8, __be16, u16, cpu_to_be16); 67 define_fbtft_write_reg(fbtft_write_reg16_bus16, u16, u16, cpu_to_be16); 68 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests
