From: Raed Salem <raeds@mellanox.com>
Date: Sun, 2 Feb 2020 11:19:34 +0000 (+0200)
Subject: xfrm: handle NETDEV_UNREGISTER for xfrm device
X-Git-Tag: v4.14.175~46
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a6001a07098525ada40c5c3e63c811e69a11c565;p=thirdparty%2Fkernel%2Fstable.git

xfrm: handle NETDEV_UNREGISTER for xfrm device

commit 03891f820c2117b19e80b370281eb924a09cf79f upstream.

This patch to handle the asynchronous unregister
device event so the device IPsec offload resources
could be cleanly released.

Fixes: e4db5b61c572 ("xfrm: policy: remove pcpu policy cache")
Signed-off-by: Raed Salem <raeds@mellanox.com>
Reviewed-by: Boris Pismenny <borisp@mellanox.com>
Reviewed-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/net/xfrm/xfrm_device.c b/net/xfrm/xfrm_device.c
index 4e458fd9236af..c585571935275 100644
--- a/net/xfrm/xfrm_device.c
+++ b/net/xfrm/xfrm_device.c
@@ -187,6 +187,7 @@ static int xfrm_dev_event(struct notifier_block *this, unsigned long event, void
 		return xfrm_dev_feat_change(dev);
 
 	case NETDEV_DOWN:
+	case NETDEV_UNREGISTER:
 		return xfrm_dev_down(dev);
 	}
 	return NOTIFY_DONE;