atomic_readandclear_int
irstat = atomic_readandclear_int(&sc->irstat);
itstat = atomic_readandclear_int(&sc->itstat);
stat = atomic_readandclear_int(&sc->intstat);
#define atomic_readandclear_32 atomic_readandclear_int
if (atomic_readandclear_int(&bd_wake_ary[i]))