Hi Sungbo, Thank you for the patch! Yet something to improve: [auto build test ERROR on gpio/for-next] [also build test ERROR on v5.8-rc2 next-20200625] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use as documented in https://git-scm.com/docs/git-format-patch] url: https://github.com/0day-ci/linux/commits/Sungbo-Eo/gpio-add-GPO-driver-for-PCA9570/20200625-160356 base: https://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio.git for-next config: mips-allyesconfig (attached as .config) compiler: mips-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 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=mips If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): >> drivers/gpio/gpio-pca9570.c:141:12: error: 'pca9570_remove' undeclared here (not in a function); did you mean 'pca9570_probe'? 141 | .remove = pca9570_remove, | ^~~~~~~~~~~~~~ | pca9570_probe vim +141 drivers/gpio/gpio-pca9570.c 134 135 static struct i2c_driver pca9570_driver = { 136 .driver = { 137 .name = "pca9570", 138 .of_match_table = pca9570_of_match_table, 139 }, 140 .probe = pca9570_probe, > 141 .remove = pca9570_remove, 142 .id_table = pca9570_id_table, 143 }; 144 module_i2c_driver(pca9570_driver); 145 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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