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

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Message-ID: <Y20A33ya17l/MqxU@lunn.ch>
Date:   Thu, 10 Nov 2022 14:47:11 +0100
From:   Andrew Lunn <andrew@...n.ch>
To:     David Howells <dhowells@...hat.com>
Cc:     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

On Thu, Nov 10, 2022 at 09:43:34AM +0000, David Howells wrote:
> Fix rxrpc_encap_err_rcv() to make the call to ipv6_icmp_error conditional
> on IPV6 support being enabled.
> 
> Fixes: b6c66c4324e7 ("rxrpc: Use the core ICMP/ICMP6 parsers")
> Reported-by: kernel test robot <lkp@...el.com>
> Signed-off-by: David Howells <dhowells@...hat.com>
> cc: Marc Dionne <marc.dionne@...istor.com>
> cc: linux-afs@...ts.infradead.org
> cc: netdev@...r.kernel.org
> ---
> 
>  net/rxrpc/local_object.c |    2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/net/rxrpc/local_object.c b/net/rxrpc/local_object.c
> index a178f71e5082..25cdfcf7b415 100644
> --- a/net/rxrpc/local_object.c
> +++ b/net/rxrpc/local_object.c
> @@ -33,7 +33,9 @@ static void rxrpc_encap_err_rcv(struct sock *sk, struct sk_buff *skb, int err,
>  {
>  	if (ip_hdr(skb)->version == IPVERSION)
>  		return ip_icmp_error(sk, skb, err, port, info, payload);
> +#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.

	Andrew