Hi Randy, First bad commit (maybe != root cause): tree: https://github.com/intel/linux-intel-lts.git 4.19/android_s head: d47c20847da6957c8b15960571893193936c8c1e commit: d50a6d412d61dbbde36becaf093d1b8ae3868b8a [19121/25248] binder.c modify secids for struct and param by refs config: powerpc-randconfig-r006-20211028 (attached as .config) compiler: powerpc-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/intel/linux-intel-lts/commit/d50a6d412d61dbbde36becaf0... git remote add intel-lts https://github.com/intel/linux-intel-lts.git git fetch --no-tags intel-lts 4.19/android_s git checkout d50a6d412d61dbbde36becaf093d1b8ae3868b8a # save the attached .config to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=powerpc SHELL=/bin/bash If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>): --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org