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

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Date:   Fri, 24 Feb 2023 04:03:33 +0800
From:   kernel test robot <lkp@...el.com>
To:     Alexandre Ghiti <alexghiti@...osinc.com>,
        Jonathan Corbet <corbet@....net>,
        Paul Walmsley <paul.walmsley@...ive.com>,
        Palmer Dabbelt <palmer@...belt.com>,
        Albert Ou <aou@...s.berkeley.edu>,
        Conor Dooley <conor@...nel.org>,
        Ard Biesheuvel <ardb@...nel.org>,
        Björn Töpel <bjorn@...nel.org>,
        linux-doc@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-riscv@...ts.infradead.org
Cc:     oe-kbuild-all@...ts.linux.dev,
        Alexandre Ghiti <alexghiti@...osinc.com>
Subject: Re: [PATCH v6 1/1] riscv: Allow to downgrade paging mode from the
 command line

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 next-20230223]
[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-rv32_defconfig (https://download.01.org/0day-ci/archive/20230224/202302240308.1CC475U8-lkp@intel.com/config)
compiler: riscv32-linux-gcc (GCC) 12.1.0
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/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=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=riscv olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=riscv SHELL=/bin/bash

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@...el.com>
| Link: https://lore.kernel.org/oe-kbuild-all/202302240308.1CC475U8-lkp@intel.com/

All errors (new ones prefixed by >>):

   arch/riscv/kernel/pi/cmdline_early.c: In function 'match_noXlvl':
>> arch/riscv/kernel/pi/cmdline_early.c:50:24: error: 'SATP_MODE_48' undeclared (first use in this function); did you mean 'SATP_MODE_32'?
      50 |                 return SATP_MODE_48;
         |                        ^~~~~~~~~~~~
         |                        SATP_MODE_32
   arch/riscv/kernel/pi/cmdline_early.c:50:24: note: each undeclared identifier is reported only once for each function it appears in
>> arch/riscv/kernel/pi/cmdline_early.c:52:24: error: 'SATP_MODE_57' undeclared (first use in this function); did you mean 'SATP_MODE_32'?
      52 |                 return SATP_MODE_57;
         |                        ^~~~~~~~~~~~
         |                        SATP_MODE_32


vim +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