The patch is available in linux-stable, and could be fwd ported from 4.14, or backported from 4.17 to bionic.
-- linux-4.14.y -- 3b185e667b52 cpuidle: powernv: Fix promotion from snooze if next state disabled
-- linux-4.17.y -- 6de015f7f962 cpuidle: powernv: Fix promotion from snooze if next state disabled
The patch is available in linux-stable, and could be fwd ported from 4.14, or backported from 4.17 to bionic.
-- linux-4.14.y --
3b185e667b52 cpuidle: powernv: Fix promotion from snooze if next state disabled
-- linux-4.17.y --
6de015f7f962 cpuidle: powernv: Fix promotion from snooze if next state disabled