netdev - Re: [PATCH net-next 5/5] net: skbuff: hide nf_trace and ipvs

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Message-ID: <20230414210950.GC5927@breakpoint.cc>
Date:   Fri, 14 Apr 2023 23:09:50 +0200
From:   Florian Westphal <fw@...len.de>
To:     Jakub Kicinski <kuba@...nel.org>
Cc:     davem@...emloft.net, netdev@...r.kernel.org, edumazet@...gle.com,
        pabeni@...hat.com, pablo@...filter.org, fw@...len.de
Subject: Re: [PATCH net-next 5/5] net: skbuff: hide nf_trace and ipvs_property

Jakub Kicinski <kuba@...nel.org> wrote:
> Accesses to nf_trace and ipvs_property are already wrapped
> by ifdefs where necessary. Don't allocate the bits for those
> fields at all if possible.
> 
> Signed-off-by: Jakub Kicinski <kuba@...nel.org>
> ---
> CC: pablo@...filter.org
> CC: fw@...len.de
> ---
>  include/linux/skbuff.h | 4 ++++
>  1 file changed, 4 insertions(+)
> 
> diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
> index 543f7ae9f09f..7b43d5a03613 100644
> --- a/include/linux/skbuff.h
> +++ b/include/linux/skbuff.h
> @@ -966,8 +966,12 @@ struct sk_buff {
>  	__u8			ndisc_nodetype:2;
>  #endif
>  
> +#if IS_ENABLED(CONFIG_IP_VS)
>  	__u8			ipvs_property:1;
> +#endif
> +#if IS_ENABLED(CONFIG_NETFILTER_XT_TARGET_TRACE) || defined(CONFIG_NF_TABLES)
>  	__u8			nf_trace:1;

As already pointed out nftables can be a module, other than that

Acked-by: Florian Westphal <fw@...len.de>