CPU unplug will call stop_wd_on_cpu regardless if the watchdog has
been configured to be enabled on that CPU. Don't warn in the case
it's not in our enabled mask, this is a valid case.
Fixes: powerpc-64s-implement-arch-specific-hardlockup-watchdog.patch
Reported-by: Santosh Sivaraj <santo...@in.ibm.com>
Signed-off-by: Nicholas Piggin <npig...@gmail.com>
---
arch/powerpc/kernel/watchdog.c | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)
diff --git a/arch/powerpc/kernel/watchdog.c b/arch/powerpc/kernel/watchdog.c
index d46040c0da40..93395a53336b 100644
--- a/arch/powerpc/kernel/watchdog.c
+++ b/arch/powerpc/kernel/watchdog.c
@@ -310,10 +310,8 @@ static int start_wd_on_cpu(unsigned int cpu)
static int stop_wd_on_cpu(unsigned int cpu)
{
- if (!cpumask_test_cpu(cpu, &wd_cpus_enabled)) {
- WARN_ON(1);
- return 0;
- }
+ if (!cpumask_test_cpu(cpu, &wd_cpus_enabled))
+ return 0; /* Can happen in CPU unplug case */
stop_watchdog_timer_on(cpu);
--
2.11.0
