config_key
static inline struct config_key *to_config_key(struct config_item *item)
return container_of(item, struct config_key, item);
struct config_key *config_key = to_config_key(item);
kfree(config_key->description);
config_key->description = kmemdup_nul(page, len, GFP_KERNEL);
if (!config_key->description)
struct config_key *config_key;
config_key = kzalloc_obj(struct config_key);
if (!config_key)
config_item_init_type_name(&config_key->item, name, &config_key_type);
return &config_key->item;
struct config_key *key;