netdev - [PATCH 2/5] netfilter: nf_tables_offload: fix always true policy is unset check

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Message-Id: <20190925203003.20112-3-pablo@netfilter.org>
Date:   Wed, 25 Sep 2019 22:30:00 +0200
From:   Pablo Neira Ayuso <pablo@...filter.org>
To:     netfilter-devel@...r.kernel.org
Cc:     davem@...emloft.net, netdev@...r.kernel.org
Subject: [PATCH 2/5] netfilter: nf_tables_offload: fix always true policy is unset check

New smatch warnings:
net/netfilter/nf_tables_offload.c:316 nft_flow_offload_chain() warn: always true condition '(policy != -1) => (0-255 != (-1))'

Reported-by: kbuild test robot <lkp@...el.com>
Fixes: c9626a2cbdb2 ("netfilter: nf_tables: add hardware offload support")
Signed-off-by: Pablo Neira Ayuso <pablo@...filter.org>
---
 net/netfilter/nf_tables_offload.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/netfilter/nf_tables_offload.c b/net/netfilter/nf_tables_offload.c
index 21bb772cb4b7..e546f759b7a7 100644
--- a/net/netfilter/nf_tables_offload.c
+++ b/net/netfilter/nf_tables_offload.c
@@ -313,7 +313,7 @@ static int nft_flow_offload_chain(struct nft_chain *chain,
 	policy = ppolicy ? *ppolicy : basechain->policy;
 
 	/* Only default policy to accept is supported for now. */
-	if (cmd == FLOW_BLOCK_BIND && policy != -1 && policy != NF_ACCEPT)
+	if (cmd == FLOW_BLOCK_BIND && policy == NF_DROP)
 		return -EOPNOTSUPP;
 
 	if (dev->netdev_ops->ndo_setup_tc)
-- 
2.11.0