From 0df83e7a6b58674683677f572e4e2361b2a69eea Mon Sep 17 00:00:00 2001 From: Anna-Maria Gleixner Date: Fri, 11 Mar 2016 10:10:23 +0100 Subject: [PATCH] net: mvneta: Add missing hotplug notifier transition 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 Cc: netdev@vger.kernel.org Signed-off-by: Anna-Maria Gleixner Signed-off-by: David S. Miller --- drivers/net/ethernet/marvell/mvneta.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/net/ethernet/marvell/mvneta.c b/drivers/net/ethernet/marvell/mvneta.c index 3d8e7d357ec9..be92668faf3e 100644 --- a/drivers/net/ethernet/marvell/mvneta.c +++ b/drivers/net/ethernet/marvell/mvneta.c @@ -3328,6 +3328,8 @@ static int mvneta_percpu_notifier(struct notifier_block *nfb, 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.