| From | Greg Kroah-Hartman <> | Subject | [PATCH 5.4 013/165] netfilter: nf_tables_offload: Check for the NETDEV_UNREGISTER event | Date | Sat, 11 Jan 2020 10:48:52 +0100 |
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From: wenxu <wenxu@ucloud.cn>
[ Upstream commit d1f4c966475c6dd2545c6625022cb24e878bee11 ]
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> Signed-off-by: Sasha Levin <sashal@kernel.org> --- net/netfilter/nf_tables_offload.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/net/netfilter/nf_tables_offload.c b/net/netfilter/nf_tables_offload.c index 5f6037695dee..6f7eab502e65 100644 --- a/net/netfilter/nf_tables_offload.c +++ b/net/netfilter/nf_tables_offload.c @@ -446,6 +446,9 @@ static int nft_offload_netdev_event(struct notifier_block *this, 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) -- 2.20.1
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