Re: [PATCH v6 1/1] riscv: Allow to downgrade paging mode from the command line

[kernel test robot <lkp@xxxxxxxxx>]

Hi Alexandre,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on linus/master]
[also build test ERROR on v6.2]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Alexandre-Ghiti/riscv-Allow-to-downgrade-paging-mode-from-the-command-line/20230223-162702
patch link:    https://lore.kernel.org/r/20230223082434.1280957-2-alexghiti%40rivosinc.com
patch subject: [PATCH v6 1/1] riscv: Allow to downgrade paging mode from the command line
config: riscv-buildonly-randconfig-r002-20230222 (https://download.01.org/0day-ci/archive/20230223/202302231942.6C2mSFYv-lkp@xxxxxxxxx/config)
compiler: clang version 17.0.0 (https://github.com/llvm/llvm-project db89896bbbd2251fff457699635acbbedeead27f)
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
        # install riscv cross compiling tool for clang build
        # apt-get install binutils-riscv-linux-gnu
        # https://github.com/intel-lab-lkp/linux/commit/7e18f795579f897e63812ca9dcb5b48ef2b7b4d2
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Alexandre-Ghiti/riscv-Allow-to-downgrade-paging-mode-from-the-command-line/20230223-162702
        git checkout 7e18f795579f897e63812ca9dcb5b48ef2b7b4d2
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=riscv olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=riscv SHELL=/bin/bash arch/riscv/kernel/pi/

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@xxxxxxxxx>
| Link: https://lore.kernel.org/oe-kbuild-all/202302231942.6C2mSFYv-lkp@xxxxxxxxx/

All errors (new ones prefixed by >>):

>> arch/riscv/kernel/pi/cmdline_early.c:50:10: error: use of undeclared identifier 'SATP_MODE_48'
                   return SATP_MODE_48;
                          ^
>> arch/riscv/kernel/pi/cmdline_early.c:52:10: error: use of undeclared identifier 'SATP_MODE_57'
                   return SATP_MODE_57;
                          ^
   2 errors generated.


vim +/SATP_MODE_48 +50 arch/riscv/kernel/pi/cmdline_early.c

    46	
    47	static u64 __init match_noXlvl(char *cmdline)
    48	{
    49		if (strstr(cmdline, "no4lvl"))
  > 50			return SATP_MODE_48;
    51		else if (strstr(cmdline, "no5lvl"))
  > 52			return SATP_MODE_57;
    53	
    54		return 0;
    55	}
    56	

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests