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Date:   Sun, 7 Aug 2022 16:39:33 +0800
From:   kernel test robot <lkp@intel.com>
To:     Hao Lee <haolee.swjtu@gmail.com>, akpm@linux-foundation.org
Cc:     kbuild-all@lists.01.org, david@redhat.com,
        yang.shi@linux.alibaba.com, hannes@cmpxchg.org,
        haolee.swjtu@gmail.com, linux-kernel@vger.kernel.org,
        linux-mm@kvack.org
Subject: Re: [PATCH] mm: add DEVICE_ZONE to FOR_ALL_ZONES
Message-ID: <202208071635.HaS64efE-lkp@intel.com>
References: <20220804074730.GA3269@haolee.io>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <20220804074730.GA3269@haolee.io>
Precedence: bulk

Hi Hao,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on akpm-mm/mm-everything]

url:    https://github.com/intel-lab-lkp/linux/commits/Hao-Lee/mm-add-DEVICE_ZONE-to-FOR_ALL_ZONES/20220804-154805
base:   https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything
config: x86_64-randconfig-m001 (https://download.01.org/0day-ci/archive/20220807/202208071635.HaS64efE-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/dba18359aee97f43008e19ffa78421e652b1b102
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Hao-Lee/mm-add-DEVICE_ZONE-to-FOR_ALL_ZONES/20220804-154805
        git checkout dba18359aee97f43008e19ffa78421e652b1b102
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        make W=1 O=build_dir ARCH=x86_64 prepare

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 >>):

   In file included from include/linux/memcontrol.h:14,
                    from include/linux/swap.h:9,
                    from include/linux/suspend.h:5,
                    from arch/x86/kernel/asm-offsets.c:13:
   include/linux/vm_event_item.h:29:27: error: expected identifier before '(' token
      29 | #define FOR_ALL_ZONES(xx) (DMA_ZONE(xx) DMA32_ZONE(xx) xx##_NORMAL, \
         |                           ^
   include/linux/vm_event_item.h:33:17: note: in expansion of macro 'FOR_ALL_ZONES'
      33 |                 FOR_ALL_ZONES(PGALLOC),
         |                 ^~~~~~~~~~~~~
   In file included from include/linux/swap.h:9,
                    from include/linux/suspend.h:5,
                    from arch/x86/kernel/asm-offsets.c:13:
>> include/linux/memcontrol.h:86:40: error: 'NR_VM_EVENT_ITEMS' undeclared here (not in a function); did you mean 'NR_VM_NUMA_EVENT_ITEMS'?
      86 |         unsigned long           events[NR_VM_EVENT_ITEMS];
         |                                        ^~~~~~~~~~~~~~~~~
         |                                        NR_VM_NUMA_EVENT_ITEMS
   make[2]: *** [scripts/Makefile.build:117: arch/x86/kernel/asm-offsets.s] Error 1
   make[2]: Target '__build' not remade because of errors.
   make[1]: *** [Makefile:1200: prepare0] Error 2
   make[1]: Target 'prepare' not remade because of errors.
   make: *** [Makefile:219: __sub-make] Error 2
   make: Target 'prepare' not remade because of errors.


vim +86 include/linux/memcontrol.h

33398cf2f360c5 Michal Hocko    2015-09-08  82  
871789d4af807d Chris Down      2019-05-14  83  struct memcg_vmstats_percpu {
2d146aa3aa842d Johannes Weiner 2021-04-29  84  	/* Local (CPU and cgroup) page state & events */
2d146aa3aa842d Johannes Weiner 2021-04-29  85  	long			state[MEMCG_NR_STAT];
e27be240df53f1 Johannes Weiner 2018-04-10 @86  	unsigned long		events[NR_VM_EVENT_ITEMS];
2d146aa3aa842d Johannes Weiner 2021-04-29  87  
2d146aa3aa842d Johannes Weiner 2021-04-29  88  	/* Delta calculation for lockless upward propagation */
2d146aa3aa842d Johannes Weiner 2021-04-29  89  	long			state_prev[MEMCG_NR_STAT];
2d146aa3aa842d Johannes Weiner 2021-04-29  90  	unsigned long		events_prev[NR_VM_EVENT_ITEMS];
2d146aa3aa842d Johannes Weiner 2021-04-29  91  
2d146aa3aa842d Johannes Weiner 2021-04-29  92  	/* Cgroup1: threshold notifications & softlimit tree updates */
33398cf2f360c5 Michal Hocko    2015-09-08  93  	unsigned long		nr_page_events;
33398cf2f360c5 Michal Hocko    2015-09-08  94  	unsigned long		targets[MEM_CGROUP_NTARGETS];
33398cf2f360c5 Michal Hocko    2015-09-08  95  };
33398cf2f360c5 Michal Hocko    2015-09-08  96  

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