tree: https://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next.git for-net-next head: 680cba277b9779591e673100f6896e5baed7a180 commit: c5c654b5fccaca469e7d2eeebd5d0f2f1255e53b [32/40] netfilter: remove checksum 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 c5c654b5fccaca469e7d2eeebd5d0f2f1255e53b # save the attached .config to linux build tree make.cross ARCH=xtensa All errors (new ones prefixed by >>): >> net//ipv6/netfilter.c:133:9: 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:28:23: note: previous definition of 'nf_ip6_checksum' was here static inline __sum16 nf_ip6_checksum(struct sk_buff *skb, unsigned int hook, ^~~~~~~~~~~~~~~ vim +/nf_ip6_checksum +133 net//ipv6/netfilter.c 1841a4c7a Patrick McHardy 2007-12-05 132 b51655b95 Al Viro 2006-11-14 @133 __sum16 nf_ip6_checksum(struct sk_buff *skb, unsigned int hook, 422c346fa Patrick McHardy 2006-04-06 134 unsigned int dataoff, u_int8_t protocol) 422c346fa Patrick McHardy 2006-04-06 135 { b71d1d426 Eric Dumazet 2011-04-22 136 const struct ipv6hdr *ip6h = ipv6_hdr(skb); b51655b95 Al Viro 2006-11-14 137 __sum16 csum = 0; 422c346fa Patrick McHardy 2006-04-06 138 422c346fa Patrick McHardy 2006-04-06 139 switch (skb->ip_summed) { 84fa7933a Patrick McHardy 2006-08-29 140 case CHECKSUM_COMPLETE: 6e23ae2a4 Patrick McHardy 2007-11-19 141 if (hook != NF_INET_PRE_ROUTING && hook != NF_INET_LOCAL_IN) 422c346fa Patrick McHardy 2006-04-06 142 break; 422c346fa Patrick McHardy 2006-04-06 143 if (!csum_ipv6_magic(&ip6h->saddr, &ip6h->daddr, 422c346fa Patrick McHardy 2006-04-06 144 skb->len - dataoff, protocol, 422c346fa Patrick McHardy 2006-04-06 145 csum_sub(skb->csum, 422c346fa Patrick McHardy 2006-04-06 146 skb_checksum(skb, 0, 422c346fa Patrick McHardy 2006-04-06 147 dataoff, 0)))) { 422c346fa Patrick McHardy 2006-04-06 148 skb->ip_summed = CHECKSUM_UNNECESSARY; 422c346fa Patrick McHardy 2006-04-06 149 break; 422c346fa Patrick McHardy 2006-04-06 150 } 422c346fa Patrick McHardy 2006-04-06 151 /* fall through */ 422c346fa Patrick McHardy 2006-04-06 152 case CHECKSUM_NONE: 868c86bcb Al Viro 2006-11-14 153 skb->csum = ~csum_unfold( 868c86bcb Al Viro 2006-11-14 154 csum_ipv6_magic(&ip6h->saddr, &ip6h->daddr, 422c346fa Patrick McHardy 2006-04-06 155 skb->len - dataoff, 422c346fa Patrick McHardy 2006-04-06 156 protocol, 422c346fa Patrick McHardy 2006-04-06 157 csum_sub(0, 422c346fa Patrick McHardy 2006-04-06 158 skb_checksum(skb, 0, 868c86bcb Al Viro 2006-11-14 159 dataoff, 0)))); 422c346fa Patrick McHardy 2006-04-06 160 csum = __skb_checksum_complete(skb); 422c346fa Patrick McHardy 2006-04-06 161 } 422c346fa Patrick McHardy 2006-04-06 162 return csum; 422c346fa Patrick McHardy 2006-04-06 163 } 422c346fa Patrick McHardy 2006-04-06 164 EXPORT_SYMBOL(nf_ip6_checksum); 422c346fa Patrick McHardy 2006-04-06 165 :::::: The code at line 133 was first introduced by commit :::::: b51655b958dfb1176bfcf99466231fdbef8751ff [NET]: Annotate __skb_checksum_complete() and friends. :::::: TO: Al Viro <viro@xxxxxxxxxxxxxxxxxx> :::::: CC: David S. Miller <davem@xxxxxxxxxxxxxxxxxxxx> --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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