tree: git://linuxtv.org/pinchartl/media.git gmsl/max9286/bindings head: b551a93fb443867f1a950d6063910639bd303daf commit: 3e5486c9f448f3d9067b1050ed189db7d062fdf4 [2/45] media: subdev: add active state to struct v4l2_subdev config: x86_64-randconfig-r015-20211216 (https://download.01.org/0day-ci/archive/20211217/202112171557.AF8ndfET-lk...) compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 9043c3d65b11b442226015acfbf8167684586cfa) 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 git remote add pinchartl-media git://linuxtv.org/pinchartl/media.git git fetch --no-tags pinchartl-media gmsl/max9286/bindings git checkout 3e5486c9f448f3d9067b1050ed189db7d062fdf4 # save the config file to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash drivers/media/v4l2-core/ 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 >>): state = __v4l2_subdev_state_alloc(sd); ^ state = __v4l2_subdev_state_alloc(sd); ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ __v4l2_subdev_state_free(sd->active_state); ^ 1 warning and 2 errors generated. vim +/__v4l2_subdev_state_alloc +951 drivers/media/v4l2-core/v4l2-subdev.c 946 947 int v4l2_subdev_init_finalize(struct v4l2_subdev *sd) 948 { 949 struct v4l2_subdev_state *state; 950 952 if (IS_ERR(state)) 953 return PTR_ERR(state); 954 955 sd->active_state = state; 956 957 return 0; 958 } 959 EXPORT_SYMBOL_GPL(v4l2_subdev_init_finalize); 960 961 void v4l2_subdev_cleanup(struct v4l2_subdev *sd) 962 { --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org