tree: https://github.com/Xilinx/linux-xlnx xlnx_rebase_v5.15 head: 1183ce490adb103e5e569b8ebd74c50c885ddc05 commit: ad3ea50420b2f1742f84afbb0de7dd0b355298c2 [848/872] spi: spi-zynqmp-gqspi: Add dual parallel and stacked mode support in driver config: alpha-randconfig-r003-20220207 (https://download.01.org/0day-ci/archive/20220208/202202080937.gKkmvBdp-lk...) compiler: alpha-linux-gcc (GCC) 11.2.0 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/Xilinx/linux-xlnx/commit/ad3ea50420b2f1742f84afbb0de7d... git remote add xilinx-xlnx https://github.com/Xilinx/linux-xlnx git fetch --no-tags xilinx-xlnx xlnx_rebase_v5.15 git checkout ad3ea50420b2f1742f84afbb0de7dd0b355298c2 # save the config file to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=alpha SHELL=/bin/bash drivers/spi/ 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 >>): In file included from include/linux/mtd/spi-nor.h:10, from drivers/spi/spi-zynqmp-gqspi.c:26: 62 | #warning No CONFIG_MTD_CFI_Ix selected. No NOR chip support can work. | ^~~~~~~ In file included from drivers/spi/spi-zynqmp-gqspi.c:13: include/linux/firmware/xlnx-zynqmp.h:1301:12: warning: 'zynqmp_pm_fpga_get_feature_list' defined but not used [-Wunused-function] 1301 | static int zynqmp_pm_fpga_get_feature_list(u32 *value) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/firmware/xlnx-zynqmp.h:1296:12: warning: 'zynqmp_pm_fpga_get_version' defined but not used [-Wunused-function] 1296 | static int zynqmp_pm_fpga_get_version(u32 *value) | ^~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/firmware/xlnx-zynqmp.h:1247:12: warning: 'zynqmp_pm_sec_mask_write_reg' defined but not used [-Wunused-function] 1247 | static int zynqmp_pm_sec_mask_write_reg(const u32 node_id, const u32 offset, | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/firmware/xlnx-zynqmp.h:1242:12: warning: 'zynqmp_pm_sec_read_reg' defined but not used [-Wunused-function] 1242 | static int zynqmp_pm_sec_read_reg(u32 node_id, u32 offset, u32 *ret_value) | ^~~~~~~~~~~~~~~~~~~~~~ vim +62 include/linux/mtd/cfi.h ^1da177e4c3f41 Linus Torvalds 2005-04-16 60 241651d04d672f David Woodhouse 2007-09-06 61 #ifndef cfi_interleave 241651d04d672f David Woodhouse 2007-09-06 @62 #warning No CONFIG_MTD_CFI_Ix selected. No NOR chip support can work. 241651d04d672f David Woodhouse 2007-09-06 63 static inline int cfi_interleave(void *cfi) 241651d04d672f David Woodhouse 2007-09-06 64 { 241651d04d672f David Woodhouse 2007-09-06 65 BUG(); 241651d04d672f David Woodhouse 2007-09-06 66 return 0; 241651d04d672f David Woodhouse 2007-09-06 67 } 241651d04d672f David Woodhouse 2007-09-06 68 #endif 241651d04d672f David Woodhouse 2007-09-06 69 :::::: The code at line 62 was first introduced by commit :::::: 241651d04d672fb685b2874707016cbbf95931e5 [MTD] Fix CFI build error when no map width or interleave supported :::::: TO: David Woodhouse <dwmw2(a)infradead.org&gt; :::::: CC: David Woodhouse <dwmw2(a)infradead.org&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org