tree: https://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux.git v5.8/psa_ffa head: b483443526c98fa26aa37e66ac01d40407974824 commit: b483443526c98fa26aa37e66ac01d40407974824 [2/2] firmware: Add support for PSA FF-A transport for VM partitions config: x86_64-allyesconfig (attached as .config) compiler: clang version 11.0.0 (https://github.com/llvm/llvm-project 1d4c87335d5236ea1f35937e1014980ba961ae34) 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 # install x86_64 cross compiling tool for clang build # apt-get install binutils-x86-64-linux-gnu git checkout b483443526c98fa26aa37e66ac01d40407974824 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross 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 >>): In file included from <built-in>:1: uint16_t id; ^ ./usr/include/linux/arm_psa_ffa.h:16:2: error: unknown type name 'uint16_t' uint16_t exec_ctxt; ^ uint32_t properties; ^ 3 errors generated. --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org