linux-kernel - Re: [PATCH net-next] rxrpc: Fix missing IPV6 #ifdef

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Date:   Thu, 10 Nov 2022 14:09:45 +0000
From:   David Howells <dhowells@...hat.com>
To:     Andrew Lunn <andrew@...n.ch>
Cc:     dhowells@...hat.com, netdev@...r.kernel.org,
        kernel test robot <lkp@...el.com>,
        Marc Dionne <marc.dionne@...istor.com>,
        linux-afs@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH net-next] rxrpc: Fix missing IPV6 #ifdef

Andrew Lunn <andrew@...n.ch> wrote:

> > +#ifdef CONFIG_AF_RXRPC_IPV6
> >  	return ipv6_icmp_error(sk, skb, err, port, info, payload);
> > +#endif
> 
> Can this be if (IS_ENABLED(CONFIG_AF_RXRPC_IPV6) {} rather than
> #ifdef? It gives better build testing.

Sure.  Does it actually make that much of a difference?  I guess the
declaration is there even if IPV6 is disabled.

David