30 lines
1.1 KiB
Diff
30 lines
1.1 KiB
Diff
From: Felix Fietkau <nbd@nbd.name>
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Date: Thu, 31 Aug 2023 21:48:38 +0200
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Subject: [PATCH] netfilter: nf_tables: ignore -EOPNOTSUPP on flowtable device
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offload setup
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On many embedded devices, it is common to configure flowtable offloading for
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a mix of different devices, some of which have hardware offload support and
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some of which don't.
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The current code limits the ability of user space to properly set up such a
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configuration by only allowing adding devices with hardware offload support to
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a offload-enabled flowtable.
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Given that offload-enabled flowtables also imply fallback to pure software
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offloading, this limitation makes little sense.
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Fix it by not bailing out when the offload setup returns -EOPNOTSUPP
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Signed-off-by: Felix Fietkau <nbd@nbd.name>
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---
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--- a/net/netfilter/nf_tables_api.c
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+++ b/net/netfilter/nf_tables_api.c
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@@ -7803,7 +7803,7 @@ static int nft_register_flowtable_net_ho
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err = flowtable->data.type->setup(&flowtable->data,
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hook->ops.dev,
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FLOW_BLOCK_BIND);
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- if (err < 0)
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+ if (err < 0 && err != -EOPNOTSUPP)
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goto err_unregister_net_hooks;
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err = nf_register_net_hook(net, &hook->ops);
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