saddr_walk_t
saddr_walk_t *swalker;
swalker = mdb_alloc(sizeof (saddr_walk_t), UM_SLEEP);
mdb_free(swalker, sizeof (saddr_walk_t));
saddr_walk_t *swalker;
swalker = (saddr_walk_t *)wsp->walk_data;
saddr_walk_t *swalker = (saddr_walk_t *)wsp->walk_data;
mdb_free(swalker, sizeof (saddr_walk_t));