From: wenxu <wenxu@ucloud.cn>
Date: Wed, 13 Nov 2019 12:21:07 +0800
Subject: netfilter: nf_tables_offload: Check for the NETDEV_UNREGISTER event
Patch-mainline: v5.5-rc3
Git-commit: d1f4c966475c6dd2545c6625022cb24e878bee11
References: bsc#1176447
Check for the NETDEV_UNREGISTER event from the nft_offload_netdev_event
function, which is the event that actually triggers the clean up.
Fixes: 06d392cbe3db ("netfilter: nf_tables_offload: remove rules when the device unregisters")
Signed-off-by: wenxu <wenxu@ucloud.cn>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
net/netfilter/nf_tables_offload.c | 3 +++
1 file changed, 3 insertions(+)
--- a/net/netfilter/nf_tables_offload.c
+++ b/net/netfilter/nf_tables_offload.c
@@ -577,6 +577,9 @@ static int nft_offload_netdev_event(stru
struct net *net = dev_net(dev);
struct nft_chain *chain;
+ if (event != NETDEV_UNREGISTER)
+ return NOTIFY_DONE;
+
mutex_lock(&net->nft.commit_mutex);
chain = __nft_offload_get_chain(dev);
if (chain)