tree: https://github.com/ambarus/linux-0day spi-nor/next-id-collisions-v2 head: b4bf25c4aeb0e9be35b688a2eaa4e9b902dff4f4 commit: 1db04a902d5710228c3172ac7113a78857a3695f [20/27] mtd: spi-nor: Introduce spi_nor_set_mtd_info() config: sparc-randconfig-r024-20210724 (attached as .config) compiler: sparc-linux-gcc (GCC) 10.3.0 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/ambarus/linux-0day/commit/1db04a902d5710228c3172ac7113... git remote add ambarus https://github.com/ambarus/linux-0day git fetch --no-tags ambarus spi-nor/next-id-collisions-v2 git checkout 1db04a902d5710228c3172ac7113a78857a3695f # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-10.3.0 make.cross ARCH=sparc 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 >>): 3126 | void spi_nor_set_mtd_info(struct spi_nor *nor) | ^~~~~~~~~~~~~~~~~~~~ vim +/spi_nor_set_mtd_info +3126 drivers/mtd/spi-nor/core.c 3125 3127 { 3128 struct mtd_info *mtd = &nor->mtd; 3129 struct device *dev = nor->dev; 3130 3131 spi_nor_register_locking_ops(nor); 3132 3133 /* Configure OTP parameters and ops */ 3134 spi_nor_otp_init(nor); 3135 3136 mtd->dev.parent = dev; 3137 if (!mtd->name) 3138 mtd->name = dev_name(dev); 3139 mtd->priv = nor; 3140 mtd->type = MTD_NORFLASH; 3141 mtd->flags = MTD_CAP_NORFLASH; 3142 if (nor->info->flags & SPI_NOR_NO_ERASE) 3143 mtd->flags |= MTD_NO_ERASE; 3144 mtd->writesize = nor->params->writesize; 3145 mtd->writebufsize = nor->page_size; 3146 mtd->size = nor->params->size; 3147 mtd->_erase = spi_nor_erase; 3148 mtd->_read = spi_nor_read; 3149 mtd->_write = spi_nor_write; 3150 mtd->_suspend = spi_nor_suspend; 3151 mtd->_resume = spi_nor_resume; 3152 mtd->_get_device = spi_nor_get_device; 3153 mtd->_put_device = spi_nor_put_device; 3154 } 3155 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org