On Wed, 8 Nov 2017, Zhenzhong Duan wrote: > There is no way a timer used as broadcast clockevent device is also used as > percpu tick clockevent device currently.
Correct. > It's better to put related code in tick_install_broadcast_device(), but I feel > it's harmless to give it back to the clockevents layer. Pls correct me if I'm > wrong. You already established, that it _cannot_ be the broadcast device and the per cpu device at the same time. So that condition can never be true. What do you want to put into tick_install_broadcast_device()? This second paragraph doesn't make sense, unless I'm missing something. Thanks, tglx