Hi Florian, I love your patch! Yet something to improve: [auto build test ERROR on nf-next/master] url: https://github.com/intel-lab-lkp/linux/commits/Florian-Westphal/netfilter-conntrack-sparse-annotations/20220621-185333 base: https://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next.git master config: x86_64-rhel-8.3-func (https://download.01.org/0day-ci/archive/20220622/202206220643.5qOb2por-lkp@xxxxxxxxx/config) compiler: gcc-11 (Debian 11.3.0-3) 11.3.0 reproduce (this is a W=1 build): # https://github.com/intel-lab-lkp/linux/commit/39109262d79a0c05cd090ebd94819babdf6d39a6 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Florian-Westphal/netfilter-conntrack-sparse-annotations/20220621-185333 git checkout 39109262d79a0c05cd090ebd94819babdf6d39a6 # save the config file mkdir build_dir && cp config build_dir/.config make W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash If you fix the issue, kindly add following tag where applicable Reported-by: kernel test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>, old ones prefixed by <<): >> ERROR: modpost: "get_h225_addr" [net/ipv4/netfilter/nf_nat_h323.ko] undefined! -- 0-DAY CI Kernel Test Service https://01.org/lkp