Hi Kate, Thank you for the patch! Yet something to improve: [auto build test ERROR on next-20210816] [cannot apply to linus/master v5.14-rc6 v5.14-rc5 v5.14-rc4 v5.14-rc6] [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/Kate-Hsuan/Intel-platform-driver... base: b9011c7e671dbbf59bb753283ddfd03f0c9eb865 config: x86_64-randconfig-a001-20210816 (attached as .config) compiler: gcc-9 (Debian 9.3.0-22) 9.3.0 reproduce (this is a W=1 build): # https://github.com/0day-ci/linux/commit/30a4d97d4248adef672f46eeb0e32b816... git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Kate-Hsuan/Intel-platform-driver-code-movement/20210816-185713 git checkout 30a4d97d4248adef672f46eeb0e32b816b6f531c # save the attached .config to linux build tree make W=1 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 >>, old ones prefixed by <<): Kconfig warnings: (for reference only) WARNING: unmet direct dependencies detected for INTEL_SCU_IPC Depends on X86 && X86_PLATFORM_DEVICES && X86_PLATFORM_DRIVERS_INTEL Selected by - MFD_INTEL_PMC_BXT && HAS_IOMEM && X86 && X86_PLATFORM_DEVICES && ACPI --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org