[chrome-os:chromeos-5.4 34/55] mm/vmscan.c:2904:40: sparse: sparse: incorrect type in argument 1 (different address spaces)

[chrome-os:chromeos-5.4 34/55] mm/vmscan.c:2904:40: sparse: sparse: incorrect type in argument 1 (different address spaces)

[kernel test robot]

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tree:   https://chromium.googlesource.com/chromiumos/third_party/kernel chromeos-5.4
head:   737037f5e6df38a08137574fe4bb77fee6254155
commit: 8c987beaae2bdfa3fb35468fe681a9b57f064fc8 [34/55] BACKPORT: FROMLIST: mm: multigenerational lru: Kconfig
config: sparc-randconfig-s031-20210706 (attached as .config)
compiler: sparc-linux-gcc (GCC) 9.3.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # apt-get install sparse
        # sparse version: v0.6.3-341-g8af24329-dirty
        git remote add chrome-os https://chromium.googlesource.com/chromiumos/third_party/kernel
        git fetch --no-tags chrome-os chromeos-5.4
        git checkout 8c987beaae2bdfa3fb35468fe681a9b57f064fc8
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=sparc 

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


sparse warnings: (new ones prefixed by >>)
>> mm/vmscan.c:2904:40: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected struct task_struct *p @@     got struct task_struct [noderef] <asn:4> *owner @@
   mm/vmscan.c:2904:40: sparse:     expected struct task_struct *p
   mm/vmscan.c:2904:40: sparse:     got struct task_struct [noderef] <asn:4> *owner
   mm/vmscan.c:3226:18: sparse: sparse: undefined identifier 'pte_index'
   mm/vmscan.c:6833:48: sparse: sparse: context imbalance in 'check_move_unevictable_pages' - unexpected unlock

vim +2904 mm/vmscan.c

7adc80c85d8815 Yu Zhao 2021-04-05  2893  
7adc80c85d8815 Yu Zhao 2021-04-05  2894  void lru_gen_migrate_mm(struct mm_struct *mm)
7adc80c85d8815 Yu Zhao 2021-04-05  2895  {
7adc80c85d8815 Yu Zhao 2021-04-05  2896  	struct mem_cgroup *memcg;
7adc80c85d8815 Yu Zhao 2021-04-05  2897  
7adc80c85d8815 Yu Zhao 2021-04-05  2898  	lockdep_assert_held(&mm->owner->alloc_lock);
7adc80c85d8815 Yu Zhao 2021-04-05  2899  
7adc80c85d8815 Yu Zhao 2021-04-05  2900  	if (mem_cgroup_disabled())
7adc80c85d8815 Yu Zhao 2021-04-05  2901  		return;
7adc80c85d8815 Yu Zhao 2021-04-05  2902  
7adc80c85d8815 Yu Zhao 2021-04-05  2903  	rcu_read_lock();
7adc80c85d8815 Yu Zhao 2021-04-05 @2904  	memcg = mem_cgroup_from_task(mm->owner);
7adc80c85d8815 Yu Zhao 2021-04-05  2905  	rcu_read_unlock();
7adc80c85d8815 Yu Zhao 2021-04-05  2906  	if (memcg == mm->lrugen.memcg)
7adc80c85d8815 Yu Zhao 2021-04-05  2907  		return;
7adc80c85d8815 Yu Zhao 2021-04-05  2908  
7adc80c85d8815 Yu Zhao 2021-04-05  2909  	VM_BUG_ON_MM(!mm->lrugen.memcg, mm);
7adc80c85d8815 Yu Zhao 2021-04-05  2910  	VM_BUG_ON_MM(list_empty(&mm->lrugen.list), mm);
7adc80c85d8815 Yu Zhao 2021-04-05  2911  
7adc80c85d8815 Yu Zhao 2021-04-05  2912  	lru_gen_del_mm(mm);
7adc80c85d8815 Yu Zhao 2021-04-05  2913  	lru_gen_add_mm(mm);
7adc80c85d8815 Yu Zhao 2021-04-05  2914  }
7adc80c85d8815 Yu Zhao 2021-04-05  2915  

:::::: The code at line 2904 was first introduced by commit
:::::: 7adc80c85d8815b4e2f5b7454c31bedc7f04de34 BACKPORT: FROMLIST: mm: multigenerational lru: mm_struct list

:::::: TO: Yu Zhao <yuzhao@google.com>
:::::: CC: Commit Bot <commit-bot@chromium.org>

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

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