Hi Javier, I love your patch! Yet something to improve: [auto build test ERROR on next-20211215] [also build test ERROR on v5.16-rc5] [cannot apply to drm/drm-next shawnguo/for-next pinchartl-media/drm/du/next drm-exynos/exynos-drm-next v5.16-rc5 v5.16-rc4 v5.16-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/Javier-Martinez-Canillas/drm-Mak... base: 93bf6eee76c0e716f6b32de690b1c52991547bb4 config: arm64-randconfig-r034-20211216 (https://download.01.org/0day-ci/archive/20211217/202112172338.SdP9K7tX-lk...) compiler: aarch64-linux-gcc (GCC) 11.2.0 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 # https://github.com/0day-ci/linux/commit/c7b8e02dcec35660bbc9101ae0c1db11e... git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Javier-Martinez-Canillas/drm-Make-drivers-to-honour-the-nomodeset-parameter/20211217-084031 git checkout c7b8e02dcec35660bbc9101ae0c1db11e5f7d1ab # save the config file to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=arm64 SHELL=/bin/bash drivers/gpu/drm/imx/dcss/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All error/warnings (new ones prefixed by >>): 134 | drm_module_platform_driver(dcss_platform_driver); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/imx/dcss/dcss-drv.c:124:31: warning: 'dcss_platform_driver' defined but not used [-Wunused-variable] 124 | static struct platform_driver dcss_platform_driver = { | ^~~~~~~~~~~~~~~~~~~~ cc1: some warnings being treated as errors vim +134 drivers/gpu/drm/imx/dcss/dcss-drv.c 133 135 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org