[nf-next:for-net-next 35/40] net/ipv6/netfilter.c:111:5: error: redefinition of 'nf_ip6_route'

[nf-next:for-net-next 35/40] net/ipv6/netfilter.c:111:5: error: redefinition of 'nf_ip6_route'

[kbuild test robot]

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tree:   https://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next.git for-net-next
head:   680cba277b9779591e673100f6896e5baed7a180
commit: 3b97b1d0324f30d7edbd54d5f13a8f10469e6498 [35/40] netfilter: remove route indirection in struct nf_afinfo
config: xtensa-allmodconfig (attached as .config)
compiler: xtensa-linux-gcc (GCC) 7.2.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        git checkout 3b97b1d0324f30d7edbd54d5f13a8f10469e6498
        # save the attached .config to linux build tree
        make.cross ARCH=xtensa 

All errors (new ones prefixed by >>):

   In file included from net/ipv6/netfilter.c:11:0:
   include/linux/netfilter_ipv6.h:39:8: error: unknown type name 'inline__sum16'
    static inline__sum16 nf_ip6_checksum_partial(struct sk_buff *skb,
           ^~~~~~~~~~~~~
   net/ipv6/netfilter.c:82:6: error: redefinition of 'nf_ip6_saveroute'
    void nf_ip6_saveroute(const struct sk_buff *skb, struct nf_queue_entry *entry)
         ^~~~~~~~~~~~~~~~
   In file included from net/ipv6/netfilter.c:11:0:
   include/linux/netfilter_ipv6.h:52:20: note: previous definition of 'nf_ip6_saveroute' was here
    static inline void nf_ip6_saveroute(const struct sk_buff *skb,
                       ^~~~~~~~~~~~~~~~
>> net/ipv6/netfilter.c:111:5: error: redefinition of 'nf_ip6_route'
    int nf_ip6_route(struct net *net, struct dst_entry **dst, struct flowi *fl,
        ^~~~~~~~~~~~
   In file included from net/ipv6/netfilter.c:11:0:
   include/linux/netfilter_ipv6.h:47:19: note: previous definition of 'nf_ip6_route' was here
    static inline int nf_ip6_route(struct net *net, struct dst_entry **dst,
                      ^~~~~~~~~~~~
   net/ipv6/netfilter.c:134:9: error: redefinition of 'nf_ip6_checksum'
    __sum16 nf_ip6_checksum(struct sk_buff *skb, unsigned int hook,
            ^~~~~~~~~~~~~~~
   In file included from net/ipv6/netfilter.c:11:0:
   include/linux/netfilter_ipv6.h:34:23: note: previous definition of 'nf_ip6_checksum' was here
    static inline __sum16 nf_ip6_checksum(struct sk_buff *skb, unsigned int hook,
                          ^~~~~~~~~~~~~~~
   net/ipv6/netfilter.c:167:9: error: conflicting types for 'nf_ip6_checksum_partial'
    __sum16 nf_ip6_checksum_partial(struct sk_buff *skb, unsigned int hook,
            ^~~~~~~~~~~~~~~~~~~~~~~
   In file included from net/ipv6/netfilter.c:11:0:
   include/linux/netfilter_ipv6.h:39:22: note: previous definition of 'nf_ip6_checksum_partial' was here
    static inline__sum16 nf_ip6_checksum_partial(struct sk_buff *skb,
                         ^~~~~~~~~~~~~~~~~~~~~~~
   include/linux/netfilter_ipv6.h:39:22: warning: 'nf_ip6_checksum_partial' defined but not used [-Wunused-function]

vim +/nf_ip6_route +111 net/ipv6/netfilter.c

    81	
  > 82	void nf_ip6_saveroute(const struct sk_buff *skb, struct nf_queue_entry *entry)
    83	{
    84		struct ip6_rt_info *rt_info = nf_queue_entry_reroute(entry);
    85	
    86		if (entry->state.hook == NF_INET_LOCAL_OUT) {
    87			const struct ipv6hdr *iph = ipv6_hdr(skb);
    88	
    89			rt_info->daddr = iph->daddr;
    90			rt_info->saddr = iph->saddr;
    91			rt_info->mark = skb->mark;
    92		}
    93	}
    94	EXPORT_SYMBOL_GPL(nf_ip6_saveroute);
    95	
    96	static int nf_ip6_reroute(struct net *net, struct sk_buff *skb,
    97				  const struct nf_queue_entry *entry)
    98	{
    99		struct ip6_rt_info *rt_info = nf_queue_entry_reroute(entry);
   100	
   101		if (entry->state.hook == NF_INET_LOCAL_OUT) {
   102			const struct ipv6hdr *iph = ipv6_hdr(skb);
   103			if (!ipv6_addr_equal(&iph->daddr, &rt_info->daddr) ||
   104			    !ipv6_addr_equal(&iph->saddr, &rt_info->saddr) ||
   105			    skb->mark != rt_info->mark)
   106				return ip6_route_me_harder(net, skb);
   107		}
   108		return 0;
   109	}
   110	
 > 111	int nf_ip6_route(struct net *net, struct dst_entry **dst, struct flowi *fl,
   112			 bool strict)
   113	{
   114		static const struct ipv6_pinfo fake_pinfo;
   115		static const struct inet_sock fake_sk = {
   116			/* makes ip6_route_output set RT6_LOOKUP_F_IFACE: */
   117			.sk.sk_bound_dev_if = 1,
   118			.pinet6 = (struct ipv6_pinfo *) &fake_pinfo,
   119		};
   120		const void *sk = strict ? &fake_sk : NULL;
   121		struct dst_entry *result;
   122		int err;
   123	
   124		result = ip6_route_output(net, sk, &fl->u.ip6);
   125		err = result->error;
   126		if (err)
   127			dst_release(result);
   128		else
   129			*dst = result;
   130		return err;
   131	}
   132	EXPORT_SYMBOL_GPL(nf_ip6_route);
   133	

---
0-DAY kernel test infrastructure                Open Source Technology Center
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