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netfilter: nf_tables_offload: skip EBUSY on chain update
author
Pablo Neira Ayuso
<pablo@netfilter.org>
Mon, 4 Nov 2019 13:52:42 +0000
(14:52 +0100)
committer
Pablo Neira Ayuso
<pablo@netfilter.org>
Mon, 4 Nov 2019 19:58:36 +0000
(20:58 +0100)
Do not try to bind a chain again if it exists, otherwise the driver
returns EBUSY.
Fixes:
c9626a2cbdb2
("netfilter: nf_tables: add hardware offload support")
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
net/netfilter/nf_tables_offload.c
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diff --git
a/net/netfilter/nf_tables_offload.c
b/net/netfilter/nf_tables_offload.c
index
ad783f4
..
e25dab8
100644
(file)
--- a/
net/netfilter/nf_tables_offload.c
+++ b/
net/netfilter/nf_tables_offload.c
@@
-334,7
+334,8
@@
int nft_flow_rule_offload_commit(struct net *net)
switch (trans->msg_type) {
case NFT_MSG_NEWCHAIN:
- if (!(trans->ctx.chain->flags & NFT_CHAIN_HW_OFFLOAD))
+ if (!(trans->ctx.chain->flags & NFT_CHAIN_HW_OFFLOAD) ||
+ nft_trans_chain_update(trans))
continue;
policy = nft_trans_chain_policy(trans);