48 #define rw_init(rw, n)          \  argument
49     rw_init_flags((rw), (n), 0)
50 #define rw_init_flags(rw, n, o) \  argument
51     ff_rw_init_flags(&(rw)->lock_object, (n), (o))
52 #define rw_destroy(rw) DO_NOTHING  argument
53 #define rw_wowned(rw) 1  argument
54 #define _rw_wlock(rw, f, l)    DO_NOTHING  argument
55 #define _rw_try_wlock(rw, f, l) 1  argument
56 #define _rw_wunlock(rw, f, l) DO_NOTHING  argument
57 #define _rw_rlock(rw, f, l)    DO_NOTHING  argument
58 #define _rw_try_rlock(rw, f, l) 1  argument
59 #define _rw_runlock(rw, f, l) DO_NOTHING  argument
60 #define _rw_try_upgrade(rw, f, l) 1  argument
61 #define _rw_downgrade(rw, f, l) DO_NOTHING  argument