to_compiz_st
struct komeda_compiz_state *st = to_compiz_st(state);
cin = &(to_compiz_st(c_st)->cins[idx]);
memcmp(&(to_compiz_st(old_st)->cins[idx]), cin, sizeof(*cin)))
st = to_compiz_st(c_st);
kfree(to_compiz_st(priv_to_comp_st(state)));