tree: git://linuxtv.org/hverkuil/media_tree.git for-v5.16a head: 5c32ddd81d2e368ca4de9756efa06aee94913b66 commit: 51cdea29b96ea6fea3f18492229f3011de48c90e [54/67] media: atomisp: unify ia_css_isp_params.c config: x86_64-allyesconfig (attached as .config) compiler: gcc-9 (Debian 9.3.0-22) 9.3.0 reproduce (this is a W=1 build): git remote add hverkuil-media-tree git://linuxtv.org/hverkuil/media_tree.git git fetch --no-tags hverkuil-media-tree for-v5.16a git checkout 51cdea29b96ea6fea3f18492229f3011de48c90e # save the attached .config to linux build tree make W=1 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 >>): cc1: all warnings being treated as errors --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org