linux-kernel - include/linux/dmar.h:21:33: error: 'CONFIG_DMAR_UNITS_SUPPORTED' undeclared here (not in a function); did you mean 'DMAR_UNITS

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Date:   Thu, 16 Jun 2022 23:40:45 +0800
From:   kernel test robot <lkp@...el.com>
To:     Steve Wahl <steve.wahl@....com>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org,
        0day robot <lkp@...el.com>, Kevin Tian <kevin.tian@...el.com>
Subject: include/linux/dmar.h:21:33: error: 'CONFIG_DMAR_UNITS_SUPPORTED'
 undeclared here (not in a function); did you mean 'DMAR_UNITS_SUPPORTED'?

tree:   https://github.com/intel-lab-lkp/linux/commits/UPDATE-20220616-024802/Steve-Wahl/iommu-vt-d-Increase-DMAR_UNITS_SUPPORTED/20220506-035321
head:   3e005e10e4d8627a55a987d047c19dba233ba66b
commit: 3e005e10e4d8627a55a987d047c19dba233ba66b iommu/vt-d: Make DMAR_UNITS_SUPPORTED a config setting
date:   21 hours ago
config: i386-randconfig-a001 (https://download.01.org/0day-ci/archive/20220616/202206162309.0IdGIck1-lkp@intel.com/config)
compiler: gcc-11 (Debian 11.3.0-3) 11.3.0
reproduce (this is a W=1 build):
        # https://github.com/intel-lab-lkp/linux/commit/3e005e10e4d8627a55a987d047c19dba233ba66b
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review UPDATE-20220616-024802/Steve-Wahl/iommu-vt-d-Increase-DMAR_UNITS_SUPPORTED/20220506-035321
        git checkout 3e005e10e4d8627a55a987d047c19dba233ba66b
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        make W=1 O=build_dir ARCH=i386 SHELL=/bin/bash

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

All errors (new ones prefixed by >>):

   In file included from include/linux/intel-iommu.h:21,
                    from drivers/char/agp/intel-gtt.c:23:
>> include/linux/dmar.h:21:33: error: 'CONFIG_DMAR_UNITS_SUPPORTED' undeclared here (not in a function); did you mean 'DMAR_UNITS_SUPPORTED'?
      21 | #define DMAR_UNITS_SUPPORTED    CONFIG_DMAR_UNITS_SUPPORTED
         |                                 ^~~~~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/intel-iommu.h:531:35: note: in expansion of macro 'DMAR_UNITS_SUPPORTED'
     531 |         unsigned int iommu_refcnt[DMAR_UNITS_SUPPORTED];
         |                                   ^~~~~~~~~~~~~~~~~~~~


vim +21 include/linux/dmar.h

    20	
  > 21	#define	DMAR_UNITS_SUPPORTED	CONFIG_DMAR_UNITS_SUPPORTED
    22	

-- 
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https://01.org/lkp