Hi Don, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on a2ea4e1d9091cd8bc69f1c42c15bedc38618f04c] url: https://github.com/0day-ci/linux/commits/Don-Bollinger/eeprom-optoe-drive... base: a2ea4e1d9091cd8bc69f1c42c15bedc38618f04c config: sparc64-randconfig-p002-20210215 (attached as .config) compiler: sparc64-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/9089aa757bfb70c473ca54face7625829... git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Don-Bollinger/eeprom-optoe-driver-to-read-write-SFP-QSFP-CMIS-EEPROMS/20210215-083817 git checkout 9089aa757bfb70c473ca54face762582908bdd28 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=sparc64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>): 615 | struct regmap *optoe_make_regmap(struct i2c_client *client) | ^~~~~~~~~~~~~~~~~ Kconfig warnings: (for reference only) WARNING: unmet direct dependencies detected for COMPAT_BINFMT_ELF Depends on COMPAT && BINFMT_ELF Selected by - COMPAT && SPARC64 vim +/optoe_make_regmap +615 drivers/misc/eeprom/optoe.c 605 606 607 /* 608 * optoe_make_regmap creates the regmap for the client. 609 * IMPORTANT: Don't call the regmap read/write calls directly 610 * for these devices. These devices are paged, and you have to 611 * set the page register before accessing the data in that page. 612 * Use the nvmem interfaces, those read/write calls use this 613 * driver to manage pages correctly. 614 */ 616 { 617 struct regmap_config regmap_config = { }; 618 struct regmap *regmap; 619 620 /* setup a minimal regmap - 8 bits, 8 bit addresses */ 621 regmap_config.val_bits = 8; 622 regmap_config.reg_bits = 8; 623 624 /* I'll handle the locking */ 625 regmap_config.disable_locking = true; 626 regmap = devm_regmap_init_i2c(client, &regmap_config); 627 return regmap; 628 } 629 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org