On 01/02/2018 02:16 AM, Arnd Bergmann wrote:
> The newly added callback pointers cause a warning for some configurations:
>
> In file included from net/ipv6/af_inet6.c:45:0:
> include/linux/netfilter_ipv6.h:38:51: error: 'struct nf_queue_entry' declared inside parameter list will not be visible outside of this definition or declaration [-Werror]
>
> Adding a forward declaration for the type avoids the warnings.
>
> Fixes: 9faa679ee7ec ("netfilter: move reroute indirection to struct nf_ipv6_ops")
> Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
Acked-and-tested-by: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>
Thanks.
> ---
> include/linux/netfilter_ipv4.h | 2 ++
> include/linux/netfilter_ipv6.h | 2 ++
> 2 files changed, 4 insertions(+)
>
> diff --git a/include/linux/netfilter_ipv4.h b/include/linux/netfilter_ipv4.h
> index 0259bcde6d2e..b31dabfdb453 100644
> --- a/include/linux/netfilter_ipv4.h
> +++ b/include/linux/netfilter_ipv4.h
> @@ -18,6 +18,8 @@ struct ip_rt_info {
>
> int ip_route_me_harder(struct net *net, struct sk_buff *skb, unsigned addr_type);
>
> +struct nf_queue_entry;
> +
> #ifdef CONFIG_INET
> __sum16 nf_ip_checksum(struct sk_buff *skb, unsigned int hook,
> unsigned int dataoff, u_int8_t protocol);
> diff --git a/include/linux/netfilter_ipv6.h b/include/linux/netfilter_ipv6.h
> index e4cdcfdce0f9..288c597e75b3 100644
> --- a/include/linux/netfilter_ipv6.h
> +++ b/include/linux/netfilter_ipv6.h
> @@ -18,6 +18,8 @@ struct ip6_rt_info {
> u_int32_t mark;
> };
>
> +struct nf_queue_entry;
> +
> /*
> * Hook functions for ipv6 to allow xt_* modules to be built-in even
> * if IPv6 is a module.
>
--
~Randy
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