On 2019/5/31 16:02, Pablo Neira Ayuso wrote: > On Fri, May 31, 2019 at 11:06:49AM +0800, Yuehaibing wrote: >> +cc netdev >> >> On 2019/5/31 10:46, YueHaibing wrote: >>> Fix gcc build error while CONFIG_IPV6 is not set >>> >>> In file included from net/netfilter/core.c:19:0: >>> ./include/linux/netfilter_ipv6.h: In function 'nf_ipv6_br_defrag': >>> ./include/linux/netfilter_ipv6.h:110:9: error: implicit declaration of function 'nf_ct_frag6_gather' [-Werror=implicit-function-declaration] >>> >>> Reported-by: Hulk Robot <hulkci@xxxxxxxxxx> >>> Fixes: 764dd163ac92 ("netfilter: nf_conntrack_bridge: add support for IPv6") >>> Signed-off-by: YueHaibing <yuehaibing@xxxxxxxxxx> >>> --- >>> include/linux/netfilter_ipv6.h | 2 ++ >>> 1 file changed, 2 insertions(+) >>> >>> diff --git a/include/linux/netfilter_ipv6.h b/include/linux/netfilter_ipv6.h >>> index a21b8c9..4ea97fd 100644 >>> --- a/include/linux/netfilter_ipv6.h >>> +++ b/include/linux/netfilter_ipv6.h >>> @@ -96,6 +96,8 @@ static inline int nf_ip6_route(struct net *net, struct dst_entry **dst, >>> #endif >>> } >>> >>> +int nf_ct_frag6_gather(struct net *net, struct sk_buff *skb, u32 user); >>> + > > This is already defined in: > > include/net/netfilter/ipv6/nf_defrag_ipv6.h > > Probably this? Yes, this works for me. >