Hi Quan, I love your patch! Yet something to improve: [auto build test ERROR on hwmon/hwmon-next] [also build test ERROR on lee-mfd/for-mfd-next v5.12-rc7 next-20210413] [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/Quan-Nguyen/Add-Ampere-s-Altra-SMPro-hwmon-driver/20210409-111448 base: https://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging.git hwmon-next config: ia64-randconfig-r033-20210414 (attached as .config) compiler: ia64-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/ae9c1fc1cd6602869e0d6b6de0d4d1ec6e126fb8 git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Quan-Nguyen/Add-Ampere-s-Altra-SMPro-hwmon-driver/20210409-111448 git checkout ae9c1fc1cd6602869e0d6b6de0d4d1ec6e126fb8 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross W=1 ARCH=ia64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): ia64-linux-ld: drivers/mfd/simple-mfd-i2c.o: in function `simple_mfd_i2c_probe': >> simple-mfd-i2c.c:(.text+0x62): undefined reference to `__devm_regmap_init_i2c' ia64-linux-ld: drivers/mfd/simple-mfd-i2c.o: in function `simple_mfd_i2c_driver_init': >> simple-mfd-i2c.c:(.init.text+0x22): undefined reference to `i2c_register_driver' Kconfig warnings: (for reference only) WARNING: unmet direct dependencies detected for MFD_SIMPLE_MFD_I2C Depends on HAS_IOMEM && I2C Selected by - MFD_SMPRO && HAS_IOMEM --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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