netdev - Re: [PATCH nf-next 2/6] netfilter: nf_tables: Reject tables of unsupported family

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Date:   Tue, 15 Mar 2022 21:27:45 +0100
From:   Pablo Neira Ayuso <pablo@...filter.org>
To:     Jakub Kicinski <kuba@...nel.org>
Cc:     Phil Sutter <phil@....cc>, netfilter-devel@...r.kernel.org,
        davem@...emloft.net, netdev@...r.kernel.org
Subject: Re: [PATCH nf-next 2/6] netfilter: nf_tables: Reject tables of
 unsupported family

On Tue, Mar 15, 2022 at 11:56:44AM -0700, Jakub Kicinski wrote:
> On Tue, 15 Mar 2022 10:15:09 +0100 Pablo Neira Ayuso wrote:
> > +	return false
> > +#ifdef CONFIG_NF_TABLES_INET
> > +		|| family == NFPROTO_INET
> > +#endif
> > +#ifdef CONFIG_NF_TABLES_IPV4
> > +		|| family == NFPROTO_IPV4
> > +#endif
> > +#ifdef CONFIG_NF_TABLES_ARP
> > +		|| family == NFPROTO_ARP
> > +#endif
> > +#ifdef CONFIG_NF_TABLES_NETDEV
> > +		|| family == NFPROTO_NETDEV
> > +#endif
> > +#if IS_ENABLED(CONFIG_NF_TABLES_BRIDGE)
> 
> is there a reason this one is IS_ENABLED() and everything else is ifdef?

bridge might be compiled as a module, if the bridge infrastructure
also comes a module as well.

Anything else is either built-in or off.