Hi Mario, Thank you for the patch! Yet something to improve: [auto build test ERROR on e6af5c0c4d32a27e04a56f29aad587e03ff427f1] url: https://github.com/intel-lab-lkp/linux/commits/Mario-Limonciello/crypto-ccp-Bump-up-doorbell-debug-messages-to-error/20230323-050710 base: e6af5c0c4d32a27e04a56f29aad587e03ff427f1 patch link: https://lore.kernel.org/r/20230322210227.464-5-mario.limonciello%40amd.com patch subject: [PATCH v6 4/4] i2c: designware: Add doorbell support for Mendocino config: i386-allyesconfig (https://download.01.org/0day-ci/archive/20230325/202303250445.xSF29gIw-lkp@xxxxxxxxx/config) compiler: gcc-11 (Debian 11.3.0-8) 11.3.0 reproduce (this is a W=1 build): # https://github.com/intel-lab-lkp/linux/commit/9056f37ee3c0bd46052df6b3fb08c0ad951752a4 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Mario-Limonciello/crypto-ccp-Bump-up-doorbell-debug-messages-to-error/20230323-050710 git checkout 9056f37ee3c0bd46052df6b3fb08c0ad951752a4 # save the config file mkdir build_dir && cp config build_dir/.config make W=1 O=build_dir ARCH=i386 olddefconfig make W=1 O=build_dir ARCH=i386 SHELL=/bin/bash If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Link: https://lore.kernel.org/oe-kbuild-all/202303250445.xSF29gIw-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): ld: drivers/i2c/busses/i2c-designware-amdpsp.o: in function `psp_send_i2c_req_mendocino': >> i2c-designware-amdpsp.c:(.text+0x12): undefined reference to `psp_ring_platform_doorbell' ld: drivers/i2c/busses/i2c-designware-amdpsp.o: in function `psp_send_i2c_req_cezanne': i2c-designware-amdpsp.c:(.text+0x67): undefined reference to `psp_send_platform_access_msg' ld: drivers/i2c/busses/i2c-designware-amdpsp.o: in function `i2c_dw_amdpsp_probe_lock_support': i2c-designware-amdpsp.c:(.text+0x497): undefined reference to `psp_check_platform_access_status' -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests