tree: git://git.kernel.org/pub/scm/linux/kernel/git/lkundrak/linux-mmp.git lr/nand/cafe-nand-exec-op-debug head: ca82ff45fe30d46aad41d713abb8f8d381a8264f commit: efacd4bb2a456361df1453d096550ef1dd0d6fc4 [65/104] mtd: rawnand: atmel: Convert the driver to exec_op() config: alpha-allyesconfig (attached as .config) compiler: alpha-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 git checkout efacd4bb2a456361df1453d096550ef1dd0d6fc4 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=alpha If you fix the issue, kindly add following tag as appropriate Reported-by: kbuild test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>, old ones prefixed by <<): drivers/mtd/nand/raw/atmel/nand-controller.c: In function 'atmel_smc_nand_exec_op': 787 | struct atmel_nand_controller *nc; | ^~ vim +/nc +787 drivers/mtd/nand/raw/atmel/nand-controller.c 782 783 static int atmel_smc_nand_exec_op(struct atmel_nand *nand, 784 const struct nand_operation *op, 785 bool check_only) 786 { 788 unsigned int i; 789 int ret = 0; 790 791 if (check_only) 792 return 0; 793 794 nc = to_nand_controller(nand->base.controller); 795 atmel_nand_select_target(nand, op->cs); 796 gpiod_set_value(nand->activecs->csgpio, 0); 797 for (i = 0; i < op->ninstrs; i++) { 798 ret = atmel_smc_nand_exec_instr(nand, &op->instrs[i]); 799 if (ret) 800 break; 801 } 802 gpiod_set_value(nand->activecs->csgpio, 1); 803 804 return ret; 805 } 806 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org