340 int __weak bpf_stackmap_copy(struct bpf_map *map, void *key, void *value)  in bpf_stackmap_copy()  argument
350 	void __user *ukey = u64_to_ptr(attr->key);  in map_lookup_elem()
354 	void *key, *value, *ptr;  in map_lookup_elem()  local
373 	key = kmalloc(map->key_size, GFP_USER);  in map_lookup_elem()
374 	if (!key)  in map_lookup_elem()
378 	if (copy_from_user(key, ukey, map->key_size) != 0)  in map_lookup_elem()
393 		err = bpf_percpu_hash_copy(map, key, value);  in map_lookup_elem()
395 		err = bpf_percpu_array_copy(map, key, value);  in map_lookup_elem()
397 		err = bpf_stackmap_copy(map, key, value);  in map_lookup_elem()
400 		ptr = map->ops->map_lookup_elem(map, key);  in map_lookup_elem()
419 	kfree(key);  in map_lookup_elem()
429 	void __user *ukey = u64_to_ptr(attr->key);  in map_update_elem()
433 	void *key, *value;  in map_update_elem()  local
452 	key = kmalloc(map->key_size, GFP_USER);  in map_update_elem()
453 	if (!key)  in map_update_elem()
457 	if (copy_from_user(key, ukey, map->key_size) != 0)  in map_update_elem()
481 		err = bpf_percpu_hash_update(map, key, value, attr->flags);  in map_update_elem()
483 		err = bpf_percpu_array_update(map, key, value, attr->flags);  in map_update_elem()
488 		err = bpf_fd_array_map_update_elem(map, f.file, key, value,  in map_update_elem()
493 		err = map->ops->map_update_elem(map, key, value, attr->flags);  in map_update_elem()
502 	kfree(key);  in map_update_elem()
508 #define BPF_MAP_DELETE_ELEM_LAST_FIELD key
512 	void __user *ukey = u64_to_ptr(attr->key);  in map_delete_elem()
516 	void *key;  in map_delete_elem()  local
533 	key = kmalloc(map->key_size, GFP_USER);  in map_delete_elem()
534 	if (!key)  in map_delete_elem()
538 	if (copy_from_user(key, ukey, map->key_size) != 0)  in map_delete_elem()
544 	err = map->ops->map_delete_elem(map, key);  in map_delete_elem()
550 	kfree(key);  in map_delete_elem()
561 	void __user *ukey = u64_to_ptr(attr->key);  in map_get_next_key()
565 	void *key, *next_key;  in map_get_next_key()  local
583 	key = kmalloc(map->key_size, GFP_USER);  in map_get_next_key()
584 	if (!key)  in map_get_next_key()
588 	if (copy_from_user(key, ukey, map->key_size) != 0)  in map_get_next_key()
597 	err = map->ops->map_get_next_key(map, key, next_key);  in map_get_next_key()
611 	kfree(key);  in map_get_next_key()