Hi Christian, Thank you for the patch! Yet something to improve: [auto build test ERROR on klassert-ipsec/master] [also build test ERROR on net-next/master net/master linus/master v6.0-rc7 next-20220927] [cannot apply to klassert-ipsec-next/master] [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#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Christian-Langrock/xfrm-replay-Fix-ESN-wrap-around-for-GSO/20220927-210053 base: https://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec.git master config: i386-randconfig-a013 compiler: clang version 14.0.6 (https://github.com/llvm/llvm-project f28c006a5895fc0e329fe15fead81e37457cb1d1) 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/intel-lab-lkp/linux/commit/bb1661466e741ea02b82c9d57c6cee6cee07ba7e git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Christian-Langrock/xfrm-replay-Fix-ESN-wrap-around-for-GSO/20220927-210053 git checkout bb1661466e741ea02b82c9d57c6cee6cee07ba7e # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=i386 SHELL=/bin/bash net/ If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot All errors (new ones prefixed by >>): >> net/xfrm/xfrm_replay.c:773:6: error: conflicting types for 'xfrm_replay_overflow_check' bool xfrm_replay_overflow_check(struct xfrm_state *x, struct sk_buff *skb) ^ include/net/xfrm.h:1752:5: note: previous declaration is here int xfrm_replay_overflow_check(struct xfrm_state *x, struct sk_buff *skb); ^ 1 error generated. vim +/xfrm_replay_overflow_check +773 net/xfrm/xfrm_replay.c 772 > 773 bool xfrm_replay_overflow_check(struct xfrm_state *x, struct sk_buff *skb) 774 { 775 if (x->repl_mode == XFRM_REPLAY_MODE_ESN) 776 return xfrm_replay_overflow_check_offload_esn(x, skb); 777 778 return false; 779 } 780 -- 0-DAY CI Kernel Test Service https://01.org/lkp