*
* May sleep.
*/
-int cn_add_callback(struct cb_id *id, const char *name,
+int cn_add_callback(const struct cb_id *id, const char *name,
void (*callback)(struct cn_msg *,
struct netlink_skb_parms *))
{
*
* May sleep while waiting for reference counter to become zero.
*/
-void cn_del_callback(struct cb_id *id)
+void cn_del_callback(const struct cb_id *id)
{
struct cn_dev *dev = &cdev;