Re: [PATCH] cpuidle/powernv: Fix snooze timeout

quoted

This is still a rounding error but at a different site. I see we saved
a division by doing a >> 10, but we added it right back by doing a /20
later in the platform code.

While a >> 10 is done at every idle exit, div by 20 is done once during
boot, so this doesn't negate the previous optimization.

Yes, fair point

quoted

Shouldn't the rounding affect other
platforms as well? Can't we fix it in cpuidle_enter_state().

This does affect all platforms, but I'm guessing no other place relied
on the precision of last_residency calculations.
Daniel can perhaps comment on this.