tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: 5394cae209c4a4990d81be436ba17ae56fb09d16 commit: 44391f3171b05060096ff496f3507033f2460161 [3083/3083] memcg: Add sysctl memcg_qos_enable config: x86_64-randconfig-123-20251103 (https://download.01.org/0day-ci/archive/20251103/202511030753.dgyTecoe-lkp@i...) compiler: clang version 20.1.8 (https://github.com/llvm/llvm-project 87f0227cb60147a26a1eeb4fb06e3b505e9c7261) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251103/202511030753.dgyTecoe-lkp@i...) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp@intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202511030753.dgyTecoe-lkp@intel.com/ sparse warnings: (new ones prefixed by >>)

...

mm/memcontrol.c:4061:5: sparse: sparse: symbol 'sysctl_memcg_oom_prio' was not declared. Should it be static? mm/memcontrol.c:4223:50: sparse: sparse: incorrect type in argument 3 (different address spaces) @@ expected void * @@ got void [noderef] __user *buffer @@ mm/memcontrol.c:4223:50: sparse: expected void * mm/memcontrol.c:4223:50: sparse: got void [noderef] __user *buffer mm/memcontrol.c:4245:35: sparse: sparse: incorrect type in initializer (incompatible argument 3 (different address spaces)) @@ expected int ( [usertype] *proc_handler )( ... ) @@ got int ( * )( ... ) @@ mm/memcontrol.c:4245:35: sparse: expected int ( [usertype] *proc_handler )( ... ) mm/memcontrol.c:4245:35: sparse: got int ( * )( ... ) mm/memcontrol.c:4504:21: sparse: sparse: incompatible types in comparison expression (different address spaces): mm/memcontrol.c:4504:21: sparse: struct mem_cgroup_threshold_ary [noderef] __rcu * mm/memcontrol.c:4504:21: sparse: struct mem_cgroup_threshold_ary * mm/memcontrol.c:4506:21: sparse: sparse: incompatible types in comparison expression (different address spaces): mm/memcontrol.c:4506:21: sparse: struct mem_cgroup_threshold_ary [noderef] __rcu * mm/memcontrol.c:4506:21: sparse: struct mem_cgroup_threshold_ary * mm/memcontrol.c:4662:9: sparse: sparse: incompatible types in comparison expression (different address spaces): mm/memcontrol.c:4662:9: sparse: struct mem_cgroup_threshold_ary [noderef] __rcu * mm/memcontrol.c:4662:9: sparse: struct mem_cgroup_threshold_ary * mm/memcontrol.c:4756:9: sparse: sparse: incompatible types in comparison expression (different address spaces): mm/memcontrol.c:4756:9: sparse: struct mem_cgroup_threshold_ary [noderef] __rcu * mm/memcontrol.c:4756:9: sparse: struct mem_cgroup_threshold_ary * mm/memcontrol.c:6799:23: sparse: sparse: incompatible types in comparison expression (different address spaces): mm/memcontrol.c:6799:23: sparse: struct task_struct [noderef] __rcu * mm/memcontrol.c:6799:23: sparse: struct task_struct * mm/memcontrol.c:7016:52: sparse: sparse: incompatible types in comparison expression (different address spaces): mm/memcontrol.c:7016:52: sparse: struct task_struct [noderef] __rcu * mm/memcontrol.c:7016:52: sparse: struct task_struct * mm/memcontrol.c: note: in included file: include/linux/memcontrol.h:782:9: sparse: sparse: context imbalance in 'folio_lruvec_lock' - wrong count at exit include/linux/memcontrol.h:782:9: sparse: sparse: context imbalance in 'folio_lruvec_lock_irq' - wrong count at exit include/linux/memcontrol.h:782:9: sparse: sparse: context imbalance in 'folio_lruvec_lock_irqsave' - wrong count at exit mm/memcontrol.c:2134:6: sparse: sparse: context imbalance in 'folio_memcg_lock' - wrong count at exit mm/memcontrol.c:2181:17: sparse: sparse: context imbalance in '__folio_memcg_unlock' - unexpected unlock mm/memcontrol.c:6659:9: sparse: sparse: context imbalance in 'mem_cgroup_count_precharge_pte_range' - unexpected unlock mm/memcontrol.c:6927:9: sparse: sparse: context imbalance in 'mem_cgroup_move_charge_pte_range' - unexpected unlock

vim +/sysctl_memcg_oom_prio +4061 mm/memcontrol.c 4057 4058 #ifdef CONFIG_MEMCG_OOM_PRIORITY 4059 #define ENABLE_MEMCG_OOM_PROIRITY 1 4060 #define DISABLE_MEMCG_OOM_PROIRITY 0

4061 int sysctl_memcg_oom_prio = DISABLE_MEMCG_OOM_PROIRITY; 4062

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