Hi Henry, Thank you for the patch! Yet something to improve: [auto build test ERROR on net/master] [also build test ERROR on net-next/master linus/master ipvs/master v5.9-rc5 next-20200917] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch] url: https://github.com/0day-ci/linux/commits/Henry-Ptasinski/net-sctp-Fix-IPv... base: https://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git 5f6857e808a8bd078296575b417c4b9d160b9779 config: arm64-randconfig-r026-20200917 (attached as .config) compiler: aarch64-linux-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 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=arm64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): net/sctp/socket.c: In function 'sctp_copy_descendant': 9226 | ancestor_size += sizeof(struct sctp6_sock); | ^~~~~~ # https://github.com/0day-ci/linux/commit/3d29e6e42f7bbc9671df460a4e8250710... git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Henry-Ptasinski/net-sctp-Fix-IPv6-ancestor_size-calc-in-sctp_copy_descendant/20200918-100033 git checkout 3d29e6e42f7bbc9671df460a4e8250710db5fd28 vim +9226 net/sctp/socket.c 9219 9220 static inline void sctp_copy_descendant(struct sock *sk_to, 9221 const struct sock *sk_from) 9222 { 9223 size_t ancestor_size = sizeof(struct inet_sock); 9224 9225 if (sk_from->sk_family == PF_INET6) 9227 else 9228 ancestor_size += sizeof(struct sctp_sock); 9229 9230 ancestor_size -= offsetof(struct sctp_sock, pd_lobby); 9231 9232 __inet_sk_copy_descendant(sk_to, sk_from, ancestor_size); 9233 } 9234 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org