The mvneta_percpu_notifier() hotplug callback lacks handling of the
CPU_DOWN_FAILED case. That means, if CPU_DOWN_PREPARE failes, the
driver is not well configured on the CPU.
Add handling for CPU_DOWN_FAILED[_FROZEN] hotplug notifier transition
to setup the driver.
Cc: Thomas Petazzoni <thomas.petazz...@free-electrons.com>
Cc: net...@vger.kernel.org
Signed-off-by: Anna-Maria Gleixner <anna-ma...@linutronix.de>
---
drivers/net/ethernet/marvell/mvneta.c | 2 ++
1 file changed, 2 insertions(+)
--- a/drivers/net/ethernet/marvell/mvneta.c
+++ b/drivers/net/ethernet/marvell/mvneta.c
@@ -2920,6 +2920,8 @@ static int mvneta_percpu_notifier(struct
switch (action) {
case CPU_ONLINE:
case CPU_ONLINE_FROZEN:
+ case CPU_DOWN_FAILED:
+ case CPU_DOWN_FAILED_FROZEN:
spin_lock(&pp->lock);
/* Configuring the driver for a new CPU while the
* driver is stopping is racy, so just avoid it.
