netdev - Re: [PATCH net 7/7] netfilter: nf_tables: bail out early if hardware offload is not supported

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Message-ID: <20220607180025.6bd26267@kernel.org>
Date:   Tue, 7 Jun 2022 18:00:25 -0700
From:   Jakub Kicinski <kuba@...nel.org>
To:     Pablo Neira Ayuso <pablo@...filter.org>
Cc:     netfilter-devel@...r.kernel.org, davem@...emloft.net,
        netdev@...r.kernel.org, pabeni@...hat.com, edumazet@...gle.com
Subject: Re: [PATCH net 7/7] netfilter: nf_tables: bail out early if
 hardware offload is not supported

On Mon,  6 Jun 2022 23:20:55 +0200 Pablo Neira Ayuso wrote:
> If user requests for NFT_CHAIN_HW_OFFLOAD, then check if either device
> provides the .ndo_setup_tc interface or there is an indirect flow block
> that has been registered. Otherwise, bail out early from the preparation
> phase. Moreover, validate that family == NFPROTO_NETDEV and hook is
> NF_NETDEV_INGRESS.

The whole series is pretty light on the "why". This patch is
particularly bad, no idea what the user visible bug was here.