[zen-kernel-zen-kernel:5.13/zen-sauce 1/4] mm/vmscan.c:188:55: error: use of undeclared identifier 'CONFIG_CLEAN_LOW_KBYTES'

[zen-kernel-zen-kernel:5.13/zen-sauce 1/4] mm/vmscan.c:188:55: error: use of undeclared identifier 'CONFIG_CLEAN_LOW_KBYTES'

[kernel test robot]

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tree:   https://github.com/zen-kernel/zen-kernel 5.13/zen-sauce
head:   efe513d7401c0d8ee779944de9997da960e257ce
commit: aec8f00a3066a2589dd6ea97d5f86d81c8d40c4a [1/4] mm/vmscan: add sysctl knobs for protecting clean cache
config: arm64-randconfig-r035-20210719 (attached as .config)
compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project 5d5b08761f944d5b9822d582378333cc4b36a0a7)
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 arm64 cross compiling tool for clang build
        # apt-get install binutils-aarch64-linux-gnu
        # https://github.com/zen-kernel/zen-kernel/commit/aec8f00a3066a2589dd6ea97d5f86d81c8d40c4a
        git remote add zen-kernel-zen-kernel https://github.com/zen-kernel/zen-kernel
        git fetch --no-tags zen-kernel-zen-kernel 5.13/zen-sauce
        git checkout aec8f00a3066a2589dd6ea97d5f86d81c8d40c4a
        # save the attached .config to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross O=build_dir ARCH=arm64 SHELL=/bin/bash

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

All errors (new ones prefixed by >>):

   mm/vmscan.c:180:5: warning: 'CONFIG_CLEAN_LOW_KBYTES' is not defined, evaluates to 0 [-Wundef]
   #if CONFIG_CLEAN_LOW_KBYTES < 0
       ^
   mm/vmscan.c:184:5: warning: 'CONFIG_CLEAN_MIN_KBYTES' is not defined, evaluates to 0 [-Wundef]
   #if CONFIG_CLEAN_MIN_KBYTES < 0
       ^
>> mm/vmscan.c:188:55: error: use of undeclared identifier 'CONFIG_CLEAN_LOW_KBYTES'
   unsigned long sysctl_clean_low_kbytes __read_mostly = CONFIG_CLEAN_LOW_KBYTES;
                                                         ^
>> mm/vmscan.c:189:55: error: use of undeclared identifier 'CONFIG_CLEAN_MIN_KBYTES'
   unsigned long sysctl_clean_min_kbytes __read_mostly = CONFIG_CLEAN_MIN_KBYTES;
                                                         ^
   2 warnings and 2 errors generated.


vim +/CONFIG_CLEAN_LOW_KBYTES +188 mm/vmscan.c

   187	
 > 188	unsigned long sysctl_clean_low_kbytes __read_mostly = CONFIG_CLEAN_LOW_KBYTES;
 > 189	unsigned long sysctl_clean_min_kbytes __read_mostly = CONFIG_CLEAN_MIN_KBYTES;
   190	

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org

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