Hi Xin, Thank you for the patch! Yet something to improve: [auto build test ERROR on net-next/master] url: https://github.com/0day-ci/linux/commits/Xin-Long/sctp-Implement-RFC6951-UDP-Encapsulation-of-SCTP/20200929-215159 base: https://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next.git 280095713ce244e8dbdfb059cdca695baa72230a config: c6x-randconfig-r023-20200929 (attached as .config) compiler: c6x-elf-gcc (GCC) 9.3.0 reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # https://github.com/0day-ci/linux/commit/38f71b63a83947b86b356d8af1ba077027d27deb git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Xin-Long/sctp-Implement-RFC6951-UDP-Encapsulation-of-SCTP/20200929-215159 git checkout 38f71b63a83947b86b356d8af1ba077027d27deb # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=c6x If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): In file included from include/net/sctp/checksum.h:27, from net/netfilter/nf_nat_proto.c:16: include/net/sctp/sctp.h: In function 'sctp_mtu_payload': >> include/net/sctp/sctp.h:583:31: error: 'struct net' has no member named 'sctp'; did you mean 'ct'? 583 | if (sock_net(&sp->inet.sk)->sctp.udp_port) | ^~~~ | ct vim +583 include/net/sctp/sctp.h 572 573 /* Calculate max payload size given a MTU, or the total overhead if 574 * given MTU is zero 575 */ 576 static inline __u32 sctp_mtu_payload(const struct sctp_sock *sp, 577 __u32 mtu, __u32 extra) 578 { 579 __u32 overhead = sizeof(struct sctphdr) + extra; 580 581 if (sp) { 582 overhead += sp->pf->af->net_header_len; > 583 if (sock_net(&sp->inet.sk)->sctp.udp_port) 584 overhead += sizeof(struct udphdr); 585 } else { 586 overhead += sizeof(struct ipv6hdr); 587 } 588 589 if (WARN_ON_ONCE(mtu && mtu <= overhead)) 590 mtu = overhead; 591 592 return mtu ? mtu - overhead : overhead; 593 } 594 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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