Hi Iouri, I love your patch! Yet something to improve: [auto build test ERROR on linus/master] [also build test ERROR on v5.17-rc2 next-20220204] [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/Iouri-Tarassov/Driver-for-Hyper-v-virtual-compute-device/20220205-103726 base: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 0457e5153e0e8420134f60921349099e907264ca config: x86_64-randconfig-a011-20220131 (https://download.01.org/0day-ci/archive/20220205/202202051759.oGUDauQC-lkp@xxxxxxxxx/config) compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project 78c6b90000292eb37aac5dead6ab26611cd76f42) 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/7a6280c6fb18da7243d3de07abe09b4c3d1938e2 git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Iouri-Tarassov/Driver-for-Hyper-v-virtual-compute-device/20220205-103726 git checkout 7a6280c6fb18da7243d3de07abe09b4c3d1938e2 # 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 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): In file included from <built-in>:1: >> ./usr/include/misc/d3dkmthk.h:25:4: error: unknown type name '__u32' __u32 instance : 6; ^ ./usr/include/misc/d3dkmthk.h:26:4: error: unknown type name '__u32' __u32 index : 24; ^ ./usr/include/misc/d3dkmthk.h:27:4: error: unknown type name '__u32' __u32 unique : 2; ^ ./usr/include/misc/d3dkmthk.h:29:3: error: unknown type name '__u32' __u32 v; ^ ./usr/include/misc/d3dkmthk.h:53:2: error: unknown type name '__u32' __u32 a; ^ ./usr/include/misc/d3dkmthk.h:54:2: error: unknown type name '__u32' __u32 b; ^ ./usr/include/misc/d3dkmthk.h:70:2: error: unknown type name '__u32' __u32 num_sources; ^ ./usr/include/misc/d3dkmthk.h:71:2: error: unknown type name '__u32' __u32 present_move_regions_preferred; ^ ./usr/include/misc/d3dkmthk.h:75:2: error: unknown type name '__u32' __u32 num_adapters; ^ ./usr/include/misc/d3dkmthk.h:76:2: error: unknown type name '__u32' __u32 reserved; ^ >> ./usr/include/misc/d3dkmthk.h:77:2: error: unknown type name '__u64' __u64 *adapters; ^ ./usr/include/misc/d3dkmthk.h:93:4: error: unknown type name '__u32' __u32 write_operation :1; ^ ./usr/include/misc/d3dkmthk.h:94:4: error: unknown type name '__u32' __u32 do_not_retire_instance :1; ^ ./usr/include/misc/d3dkmthk.h:95:4: error: unknown type name '__u32' __u32 offer_priority :3; ^ ./usr/include/misc/d3dkmthk.h:96:4: error: unknown type name '__u32' __u32 reserved :27; ^ ./usr/include/misc/d3dkmthk.h:98:3: error: unknown type name '__u32' __u32 value; ^ ./usr/include/misc/d3dkmthk.h:103:2: error: unknown type name '__u32' __u32 allocation_index; ^ ./usr/include/misc/d3dkmthk.h:106:4: error: unknown type name '__u32' __u32 slot_id:24; ^ ./usr/include/misc/d3dkmthk.h:107:4: error: unknown type name '__u32' __u32 reserved:8; ^ fatal error: too many errors emitted, stopping now [-ferror-limit=] 20 errors generated. --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx