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

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Message-ID: <CAPA1RqBF7u6posD9ozzaONmhoLnQACdYF8HdwDLjwYWDohyqvw@mail.gmail.com>
Date:   Thu, 10 Nov 2022 19:42:14 +0900
From:   Hideaki Yoshifuji <hideaki.yoshifuji@...aclelinux.com>
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,
        yoshfuji@...ux-ipv6.org,
        "Hideaki Yoshifuji (yoshfuji)" <hideaki.yoshifuji@...aclelinux.com>
Subject: Re: [PATCH net-next] rxrpc: Fix missing IPV6 #ifdef

Hi,

2022年11月10日(木) 18:44 David Howells <dhowells@...hat.com>:
>
> 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
>  }
>

Because this introduces a missing return literally without CONFIG_AF_RXRPC_IPV6,
I would prefer #ifdef / #else for the whole function.

--yoshfuji

>  /*
>
>