Hi Eric, I love your patch! Yet something to improve: [auto build test ERROR on net-next/master] url: https://github.com/0day-ci/linux/commits/Eric-Dumazet/net-speedup-netns-d... base: https://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next.git ff62433883b3ab753a78954ecf46e2c514f5c407 config: ia64-allmodconfig (https://download.01.org/0day-ci/archive/20220208/202202080332.UKy4LO6e-lk...) compiler: ia64-linux-gcc (GCC) 11.2.0 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/4a23446f3f1d4d348348210ec16e5e537... git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Eric-Dumazet/net-speedup-netns-dismantles/20220208-013735 git checkout 4a23446f3f1d4d348348210ec16e5e5372177b48 # save the config file to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=ia64 SHELL=/bin/bash net/ipv4/ 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/ipv4/ipmr.c: In function 'ipmr_rules_exit': 269 | ASSERT_RNTL(); | ^~~~~~~~~~~ | ASSERT_RTNL cc1: some warnings being treated as errors vim +269 net/ipv4/ipmr.c 264 265 static void __net_exit ipmr_rules_exit(struct net *net) 266 { 267 struct mr_table *mrt, *next; 268 270 list_for_each_entry_safe(mrt, next, &net->ipv4.mr_tables, list) { 271 list_del(&mrt->list); 272 ipmr_free_table(mrt); 273 } 274 fib_rules_unregister(net->ipv4.mr_rules_ops); 275 } 276 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org