tree: https://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next.git master head: bfcf40da75597a7c6761ab7dd8bba18b487ae2d9 commit: bfcf40da75597a7c6761ab7dd8bba18b487ae2d9 [9/9] netfilter: reject: skip csum verification for protocols that don't support it config: x86_64-randconfig-s2-02130805 (attached as .config) compiler: gcc-6 (Debian 6.5.0-2) 6.5.0 20181026 reproduce: git checkout bfcf40da75597a7c6761ab7dd8bba18b487ae2d9 # save the attached .config to linux build tree make ARCH=x86_64 All errors (new ones prefixed by >>): ld: net/ipv6/netfilter/nf_reject_ipv6.o: in function `nf_reject_verify_csum': >> include/net/netfilter/nf_reject.h:5: multiple definition of `nf_reject_verify_csum'; net/ipv4/netfilter/nf_reject_ipv4.o:include/net/netfilter/nf_reject.h:5: first defined here ld: net/ipv6/netfilter/ip6t_REJECT.o: in function `nf_reject_verify_csum': >> include/net/netfilter/nf_reject.h:5: multiple definition of `nf_reject_verify_csum'; net/ipv4/netfilter/nf_reject_ipv4.o:include/net/netfilter/nf_reject.h:5: first defined here vim +5 include/net/netfilter/nf_reject.h 4 > 5 bool nf_reject_verify_csum(__u8 proto) { 6 /* Skip protocols that don't use 16-bit one's complement checksum 7 * of the entire payload. 8 */ 9 switch (proto) { 10 /* Protocols with other integrity checks. */ 11 case IPPROTO_AH: 12 case IPPROTO_ESP: 13 case IPPROTO_SCTP: 14 15 /* Protocols with partial checksums. */ 16 case IPPROTO_UDPLITE: 17 case IPPROTO_DCCP: 18 19 /* Protocols with optional checksums. */ 20 case IPPROTO_GRE: 21 return false; 22 } 23 return true; 24 } 25 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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