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netfilter: nf_tables_offload: skip EBUSY on chain update

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Do not try to bind a chain again if it exists, otherwise the driver
returns EBUSY.

Fixes: c9626a2cbd ("netfilter: nf_tables: add hardware offload support")
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
This commit is contained in:
Pablo Neira Ayuso 2019-11-04 14:52:42 +01:00
parent 1ed012f6fd
commit 88c749840d
1 changed files with 2 additions and 1 deletions
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3
net/netfilter/nf_tables_offload.c
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@ -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);