Hi Jan, I love your patch! Yet something to improve: [auto build test ERROR on wsa/i2c/for-next] [also build test ERROR on linux/master rafael-pm/linux-next linus/master v5.16 next-20220120] [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/Jan-Dabros/i2c-designware-Add-su... base: https://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux.git i2c/for-next config: ia64-allyesconfig (https://download.01.org/0day-ci/archive/20220120/202201201946.aWAj339S-lk...) compiler: ia64-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/0day-ci/linux/commit/f21a75f68baddffd9c50ffdc95d419ad7... git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Jan-Dabros/i2c-designware-Add-support-for-AMD-PSP-semaphore/20220120-081854 git checkout f21a75f68baddffd9c50ffdc95d419ad7dbe3f68 # save the config file to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=ia64 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 errors (new ones prefixed by >>): 3 | #include <asm/msr.h> | ^~~~~~~~~~~ compilation terminated. vim +3 drivers/i2c/busses/i2c-designware-amdpsp.c 2 4 #include <linux/i2c.h> 5 #include <linux/psp-sev.h> 6 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org