tree: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-unstable head: d7ba3d7c3bf13e2faf419cce9e9bdfc3a1a50905 commit: 87bb2dbb869cbd1a0aa8cfd43d7f96882c9924a0 [77/88] mm/mempolicy: implement the sysfs-based weighted_interleave interface config: s390-randconfig-r132-20240118 (https://download.01.org/0day-ci/archive/20240119/202401190453.R3kE0fNX-lkp@xxxxxxxxx/config) compiler: s390-linux-gcc (GCC) 13.2.0 reproduce: (https://download.01.org/0day-ci/archive/20240119/202401190453.R3kE0fNX-lkp@xxxxxxxxx/reproduce) 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@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202401190453.R3kE0fNX-lkp@xxxxxxxxx/ sparse warnings: (new ones prefixed by >>) mm/mempolicy.c:3111:15: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct iw_table [noderef] __rcu *table @@ got struct iw_table * @@ mm/mempolicy.c:3111:15: sparse: expected struct iw_table [noderef] __rcu *table mm/mempolicy.c:3111:15: sparse: got struct iw_table * mm/mempolicy.c:3132:13: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct iw_table [noderef] __rcu *new @@ got void * @@ mm/mempolicy.c:3132:13: sparse: expected struct iw_table [noderef] __rcu *new mm/mempolicy.c:3132:13: sparse: got void * mm/mempolicy.c:3137:13: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct iw_table [noderef] __rcu *old @@ got struct iw_table * @@ mm/mempolicy.c:3137:13: sparse: expected struct iw_table [noderef] __rcu *old mm/mempolicy.c:3137:13: sparse: got struct iw_table * >> mm/mempolicy.c:3141:17: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *dest @@ got unsigned char [noderef] [usertype] __rcu ( * )[2] @@ mm/mempolicy.c:3141:17: sparse: expected void *dest mm/mempolicy.c:3141:17: sparse: got unsigned char [noderef] [usertype] __rcu ( * )[2] >> mm/mempolicy.c:3141:32: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void const *src @@ got unsigned char [noderef] [usertype] __rcu ( * )[2] @@ mm/mempolicy.c:3141:32: sparse: expected void const *src mm/mempolicy.c:3141:32: sparse: got unsigned char [noderef] [usertype] __rcu ( * )[2] mm/mempolicy.c:3145:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct callback_head *head @@ got struct callback_head [noderef] __rcu * @@ mm/mempolicy.c:3145:9: sparse: expected struct callback_head *head mm/mempolicy.c:3145:9: sparse: got struct callback_head [noderef] __rcu * mm/mempolicy.c:3145:9: sparse: sparse: cast removes address space '__rcu' of expression mm/mempolicy.c:3239:22: sparse: sparse: incompatible types in comparison expression (different address spaces): mm/mempolicy.c:3239:22: sparse: struct iw_table [noderef] __rcu * mm/mempolicy.c:3239:22: sparse: struct iw_table * mm/mempolicy.c:3260:18: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct iw_table [noderef] __rcu *static [addressable] [assigned] [toplevel] iw_table @@ got struct iw_table * @@ mm/mempolicy.c:3262:15: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct iw_table [noderef] __rcu *table @@ got void * @@ mm/mempolicy.c:3266:17: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *dest @@ got unsigned char [noderef] [usertype] __rcu ( * )[2] @@ mm/mempolicy.c:3271:23: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const *objp @@ got struct iw_table [noderef] __rcu *table @@ mm/mempolicy.c:3278:23: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const *objp @@ got struct iw_table [noderef] __rcu *table @@ mm/mempolicy.c:535:17: sparse: sparse: context imbalance in 'queue_folios_pte_range' - unexpected unlock mm/mempolicy.c: note: in included file (through include/linux/rculist.h, include/linux/pid.h, include/linux/sched.h, ...): include/linux/list.h:83:21: sparse: sparse: self-comparison always evaluates to true mm/mempolicy.c:3112:32: sparse: sparse: dereference of noderef expression mm/mempolicy.c:3142:21: sparse: sparse: dereference of noderef expression vim +3141 mm/mempolicy.c 3117 3118 static ssize_t node_store(struct kobject *kobj, struct kobj_attribute *attr, 3119 const char *buf, size_t count) 3120 { 3121 struct iw_node_attr *node_attr; 3122 struct iw_table __rcu *new; 3123 struct iw_table __rcu *old; 3124 u8 weight = 0; 3125 3126 node_attr = container_of(attr, struct iw_node_attr, kobj_attr); 3127 if (count == 0 || sysfs_streq(buf, "")) 3128 weight = 0; 3129 else if (kstrtou8(buf, 0, &weight)) 3130 return -EINVAL; 3131 3132 new = kmalloc(sizeof(*new), GFP_KERNEL); 3133 if (!new) 3134 return -ENOMEM; 3135 3136 mutex_lock(&iw_table_mtx); 3137 old = rcu_dereference_protected(iw_table, 3138 lockdep_is_held(&iw_table_mtx)); 3139 /* If value is 0, revert to default weight */ 3140 weight = weight ? weight : default_iw_table.weights[node_attr->nid]; > 3141 memcpy(&new->weights, &old->weights, sizeof(new->weights)); 3142 new->weights[node_attr->nid] = weight; 3143 rcu_assign_pointer(iw_table, new); 3144 mutex_unlock(&iw_table_mtx); 3145 kfree_rcu(old, rcu); 3146 return count; 3147 } 3148 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
