Hi Pablo, I love your patch! Yet something to improve: [auto build test ERROR on nf/master] [also build test ERROR on nf-next/master v5.13-rc5 next-20210607] [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/Pablo-Neira-Ayuso/netfilter-nf_tables-add-last-expression/20210607-180754 base: https://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf.git master config: x86_64-randconfig-a006-20210607 (attached as .config) compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project ae973380c5f6be77ce395022be40350942260be9) 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 # install x86_64 cross compiling tool for clang build # apt-get install binutils-x86-64-linux-gnu # https://github.com/0day-ci/linux/commit/b2cb4b60adb3205aad6e4a0637fff3220420dcf0 git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Pablo-Neira-Ayuso/netfilter-nf_tables-add-last-expression/20210607-180754 git checkout b2cb4b60adb3205aad6e4a0637fff3220420dcf0 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): >> ld.lld: error: duplicate symbol: cleanup_module >>> defined at nf_tables_api.c:9761 (net/netfilter/nf_tables_api.c:9761) >>> net/netfilter/nf_tables_api.o:(cleanup_module) >>> defined at nft_last.c:83 (net/netfilter/nft_last.c:83) >>> net/netfilter/nft_last.o:(.exit.text+0x0) --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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