Hi Eric, I love your patch! Yet something to improve: [auto build test ERROR on f8394f232b1eab649ce2df5c5f15b0e528c92091] url: https://github.com/0day-ci/linux/commits/Eric-Biggers/eMMC-inline-encrypt... base: f8394f232b1eab649ce2df5c5f15b0e528c92091 config: parisc-allyesconfig (attached as .config) compiler: hppa-linux-gcc (GCC) 9.3.0 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/d1b20af644c3648a52d1dc7be21d7bd21... git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Eric-Biggers/eMMC-inline-encryption-support/20201113-034356 git checkout d1b20af644c3648a52d1dc7be21d7bd21fc5d854 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=parisc 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 >>): hppa-linux-ld: drivers/firmware/qcom_scm-smc.o: in function `__scm_smc_do_quirk': hppa-linux-ld: drivers/firmware/qcom_scm-legacy.o: in function `scm_legacy_call': (.text+0x1a4): undefined reference to `__arm_smccc_smc' hppa-linux-ld: drivers/firmware/qcom_scm-legacy.o: in function `scm_legacy_call_atomic': (.text+0x434): undefined reference to `__arm_smccc_smc' --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org