[chrome-os:chromeos-4.14 20/20] mm/vmscan.c:2824:9: sparse: sparse: incorrect type in argument 1 (different address spaces)

[chrome-os:chromeos-4.14 20/20] mm/vmscan.c:2824:9: 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-4.14
head:   1668a603a8f736f3783d62a0d59f1e1f087df631
commit: 1668a603a8f736f3783d62a0d59f1e1f087df631 [20/20] FIXUP: BACKPORT: FROMLIST: mm: multigenerational lru: aging
config: sparc-randconfig-s032-20210722 (attached as .config)
compiler: sparc64-linux-gcc (GCC) 10.3.0
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-4.14
        git checkout 1668a603a8f736f3783d62a0d59f1e1f087df631
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-10.3.0 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:2824:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected struct lockdep_map *lock @@     got struct lockdep_map [noderef] <asn:4> * @@
   mm/vmscan.c:2824:9: sparse:     expected struct lockdep_map *lock
   mm/vmscan.c:2824:9: sparse:     got struct lockdep_map [noderef] <asn:4> *
   mm/vmscan.c:2830:40: 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:2830:40: sparse:     expected struct task_struct *p
   mm/vmscan.c:2830:40: sparse:     got struct task_struct [noderef] <asn:4> *owner
   mm/vmscan.c:1835:48: sparse: sparse: context imbalance in 'putback_inactive_pages' - unexpected unlock
   mm/vmscan.c:2069:48: sparse: sparse: context imbalance in 'move_active_pages_to_lru' - unexpected unlock
   mm/vmscan.c:6693:48: sparse: sparse: context imbalance in 'check_move_unevictable_pages' - unexpected unlock
   In file included from include/linux/workqueue.h:9,
                    from include/linux/srcu.h:34,
                    from include/linux/notifier.h:16,
                    from include/linux/memory_hotplug.h:7,
                    from include/linux/mmzone.h:913,
                    from include/linux/gfp.h:6,
                    from include/linux/mm.h:10,
                    from mm/vmscan.c:17:
   include/linux/timer.h: In function 'timer_setup':
   include/linux/timer.h:179:23: warning: cast between incompatible function types from 'void (*)(struct timer_list *)' to 'void (*)(long unsigned int)' [-Wcast-function-type]
     179 |  __setup_timer(timer, (TIMER_FUNC_TYPE)callback,
         |                       ^
   include/linux/timer.h:144:25: note: in definition of macro '__setup_timer'
     144 |   (_timer)->function = (_fn);    24-      |                         ^~~
   In file included from include/linux/cpuset.h:13,
                    from mm/vmscan.c:38:
   include/linux/sched/topology.h: At top level:
   include/linux/sched/topology.h:197:1: warning: type qualifiers ignored on function return type [-Wignored-qualifiers]
     197 | const struct sched_group_energy * const(*sched_domain_energy_f)(int cpu);
         | ^~~~~

vim +2824 mm/vmscan.c

3daaf42f537dcb Yu Zhao 2021-04-05  2819  
3daaf42f537dcb Yu Zhao 2021-04-05  2820  void lru_gen_migrate_mm(struct mm_struct *mm)
3daaf42f537dcb Yu Zhao 2021-04-05  2821  {
3daaf42f537dcb Yu Zhao 2021-04-05  2822  	struct mem_cgroup *memcg;
3daaf42f537dcb Yu Zhao 2021-04-05  2823  
3daaf42f537dcb Yu Zhao 2021-04-05 @2824  	lockdep_assert_held(&mm->owner->alloc_lock);
3daaf42f537dcb Yu Zhao 2021-04-05  2825  
3daaf42f537dcb Yu Zhao 2021-04-05  2826  	if (mem_cgroup_disabled())
3daaf42f537dcb Yu Zhao 2021-04-05  2827  		return;
3daaf42f537dcb Yu Zhao 2021-04-05  2828  
3daaf42f537dcb Yu Zhao 2021-04-05  2829  	rcu_read_lock();
3daaf42f537dcb Yu Zhao 2021-04-05  2830  	memcg = mem_cgroup_from_task(mm->owner);
3daaf42f537dcb Yu Zhao 2021-04-05  2831  	rcu_read_unlock();
3daaf42f537dcb Yu Zhao 2021-04-05  2832  	if (memcg == mm->lrugen.memcg)
3daaf42f537dcb Yu Zhao 2021-04-05  2833  		return;
3daaf42f537dcb Yu Zhao 2021-04-05  2834  
3daaf42f537dcb Yu Zhao 2021-04-05  2835  	VM_BUG_ON_MM(!mm->lrugen.memcg, mm);
3daaf42f537dcb Yu Zhao 2021-04-05  2836  	VM_BUG_ON_MM(list_empty(&mm->lrugen.list), mm);
3daaf42f537dcb Yu Zhao 2021-04-05  2837  
3daaf42f537dcb Yu Zhao 2021-04-05  2838  	lru_gen_del_mm(mm);
3daaf42f537dcb Yu Zhao 2021-04-05  2839  	lru_gen_add_mm(mm);
3daaf42f537dcb Yu Zhao 2021-04-05  2840  }
3daaf42f537dcb Yu Zhao 2021-04-05  2841  

:::::: The code at line 2824 was first introduced by commit
:::::: 3daaf42f537dcb7ac157c4922dc2746897cd3deb 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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