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| author | Mark Brown <broonie@kernel.org> | 2018-06-01 11:40:19 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2018-06-01 11:40:19 +0100 |
| commit | 91983dd5325297de4a2b6e1e3f22497604b6c687 (patch) | |
| tree | 82a440219533c59dde336b383f89bcfe43da3aa5 /kernel/time/tick-broadcast.c | |
| parent | c36e3982af7020ff66886b6a7d673a8a471c4eac (diff) | |
| parent | 9c465aceb29ae6033c9021cc38a7dd219d9edb43 (diff) | |
Merge branch 'linux-linaro-lsk-v4.14' into linux-linaro-lsk-v4.14-rtlsk-v4.14-18.05-rt
Diffstat (limited to 'kernel/time/tick-broadcast.c')
| -rw-r--r-- | kernel/time/tick-broadcast.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/kernel/time/tick-broadcast.c b/kernel/time/tick-broadcast.c index b398c2ea69b2..aa2094d5dd27 100644 --- a/kernel/time/tick-broadcast.c +++ b/kernel/time/tick-broadcast.c @@ -612,6 +612,14 @@ static void tick_handle_oneshot_broadcast(struct clock_event_device *dev) now = ktime_get(); /* Find all expired events */ for_each_cpu(cpu, tick_broadcast_oneshot_mask) { + /* + * Required for !SMP because for_each_cpu() reports + * unconditionally CPU0 as set on UP kernels. + */ + if (!IS_ENABLED(CONFIG_SMP) && + cpumask_empty(tick_broadcast_oneshot_mask)) + break; + td = &per_cpu(tick_cpu_device, cpu); if (td->evtdev->next_event <= now) { cpumask_set_cpu(cpu, tmpmask); |