On Thu, 19 Jul 2018, Pavel Tatashin wrote: > On 07/19/2018 07:01 AM, Thomas Gleixner wrote: > > And hpet_pmtime_calibrate_cpu() contains all the hpet/pmtime stuff. > > However, when cpu_khz = x86_platform.calibrate_cpu() is called the first > time, we still call hpet_pmtime_calibrate_cpu() from > native_calibrate_cpu(). We cannot simply split native_calibrate_cpu() > into two independent functions because it is also called from > recalibrate_cpu_khz(). > So, the question is how to enforce that the first time we do not call hpet/pmtime? > > 1. Use a new global variable? Kind of ugly. > 2. Use system_state == SYSTEM_BOOTING ? Ugly, and probably not very safe. Both are horrible. So create two functions. native_...early..() and native....(). The early one does not contain the hpet/pmtimer stuff and it replaces the ops.pointer with the late one which contains all of it. Hmm? Thanks, tglx -- To unsubscribe from this list: send the line "unsubscribe linux-s390" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
