There would be no point in preserving a sched_domain with a single group
just because it has this flag set. Add it to SD_DEGENERATE_GROUPS_MASK.
Signed-off-by: NValentin Schneider <valentin.schneider@arm.com>
Signed-off-by: NIngo Molnar <mingo@kernel.org>
Acked-by: NPeter Zijlstra <a.p.zijlstra@chello.nl>
Link: https://lore.kernel.org/r/20200817113003.20802-17-valentin.schneider@arm.com