Daniel Walker writes: > If you switch to the rtc do the shift and mult need to change? You can't switch; any given CPU chip will have either the RTC or the timebase but not both. > > + /* XXX this assumes clock->shift == 22 */ > > + /* 4611686018 ~= 2^(20+64-22) / 1e9 */ > > + t2x = (u64) clock->mult * 4611686018ULL; > > It might make the code more readable if you put that constant into a > macro that gives it a name. The comment already gives more information than some arbitrary name would. Paul. - To unsubscribe from this list: send the line "unsubscribe linux-rt-users" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html