tree:   https://github.com/Xilinx/linux-xlnx xlnx_rebase_v5.15_LTS_2022.1_update
head:   d38e05f19e17b5f64bc5e3b80a63b013a78bd6fd
commit: db2754ae82e1526613a6ab5853d3cceeaed3920b [1018/1123] staging: uartlite-rs485: Initial commit to add drv
config: hexagon-randconfig-r015-20221027
compiler: clang version 16.0.0 (https://github.com/llvm/llvm-project 791a7ae1ba3efd6bca96338e10ffde557ba83920)
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/db2754ae82e1526613a6ab5853d3cceeaed3920b
        git remote add xilinx-xlnx https://github.com/Xilinx/linux-xlnx
        git fetch --no-tags xilinx-xlnx xlnx_rebase_v5.15_LTS_2022.1_update
        git checkout db2754ae82e1526613a6ab5853d3cceeaed3920b
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=hexagon SHELL=/bin/bash

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@intel.com>

All errors (new ones prefixed by >>):

>> drivers/staging/uartlite-rs485/uartlite-rs485.c:116:37: error: use of undeclared identifier 'CONFIG_SERIAL_UARTLITE_NR_UARTS'
   static struct uart_port ulite_ports[ULITE_NR_UARTS];
                                       ^
   drivers/staging/uartlite-rs485/uartlite-rs485.c:32:25: note: expanded from macro 'ULITE_NR_UARTS'
   #define ULITE_NR_UARTS          CONFIG_SERIAL_UARTLITE_NR_UARTS
                                   ^
   drivers/staging/uartlite-rs485/uartlite-rs485.c:425:9: error: use of undeclared identifier 'CONFIG_SERIAL_UARTLITE_NR_UARTS'
           .nr             = ULITE_NR_UARTS,
                             ^
   drivers/staging/uartlite-rs485/uartlite-rs485.c:32:25: note: expanded from macro 'ULITE_NR_UARTS'
   #define ULITE_NR_UARTS          CONFIG_SERIAL_UARTLITE_NR_UARTS
                                   ^
   drivers/staging/uartlite-rs485/uartlite-rs485.c:450:21: error: use of undeclared identifier 'CONFIG_SERIAL_UARTLITE_NR_UARTS'
                   for (id = 0; id < ULITE_NR_UARTS; id++)
                                     ^
   drivers/staging/uartlite-rs485/uartlite-rs485.c:32:25: note: expanded from macro 'ULITE_NR_UARTS'
   #define ULITE_NR_UARTS          CONFIG_SERIAL_UARTLITE_NR_UARTS
                                   ^
   drivers/staging/uartlite-rs485/uartlite-rs485.c:454:22: error: use of undeclared identifier 'CONFIG_SERIAL_UARTLITE_NR_UARTS'
           if (id < 0 || id >= ULITE_NR_UARTS) {
                               ^
   drivers/staging/uartlite-rs485/uartlite-rs485.c:32:25: note: expanded from macro 'ULITE_NR_UARTS'
   #define ULITE_NR_UARTS          CONFIG_SERIAL_UARTLITE_NR_UARTS
                                   ^
   4 errors generated.

Kconfig warnings: (for reference only)
   WARNING: unmet direct dependencies detected for SERIAL_CORE
   Depends on [n]: TTY [=n] && HAS_IOMEM [=y]
   Selected by [y]:
   - SERIAL_UARTLITE_RS485 [=y] && STAGING [=y] && HAS_IOMEM [=y]


vim +/CONFIG_SERIAL_UARTLITE_NR_UARTS +116 drivers/staging/uartlite-rs485/uartlite-rs485.c

   115	
 > 116	static struct uart_port ulite_ports[ULITE_NR_UARTS];
   117	

-- 
0-DAY CI Kernel Test Service
https://01.org/lkp