From: wenxu <wenxu@ucloud.cn>
Date: Wed, 13 Nov 2019 04:46:39 +0000 (+0800)
Subject: netfilter: nf_flow_table_offload: Fix check ndo_setup_tc when setup_block
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=ea13ca305177bd02de62087228a9f1e6793ccf2b;p=openwrt%2Fstaging%2Fblogic.git

netfilter: nf_flow_table_offload: Fix check ndo_setup_tc when setup_block

It should check the ndo_setup_tc in the nf_flow_table_offload_setup.

Fixes: c29f74e0df7a ("netfilter: nf_flow_table: hardware offload support")
Signed-off-by: wenxu <wenxu@ucloud.cn>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---

diff --git a/net/netfilter/nf_flow_table_offload.c b/net/netfilter/nf_flow_table_offload.c
index a14932748bcf..c54c9a6cc981 100644
--- a/net/netfilter/nf_flow_table_offload.c
+++ b/net/netfilter/nf_flow_table_offload.c
@@ -812,6 +812,9 @@ int nf_flow_table_offload_setup(struct nf_flowtable *flowtable,
 	if (!(flowtable->flags & NF_FLOWTABLE_HW_OFFLOAD))
 		return 0;
 
+	if (!dev->netdev_ops->ndo_setup_tc)
+		return -EOPNOTSUPP;
+
 	bo.net		= dev_net(dev);
 	bo.block	= &flowtable->flow_block;
 	bo.command	= cmd;