Hi Ricardo, I love your patch! Perhaps something to improve: [auto build test WARNING on net-next/master] [also build test WARNING on net/master horms-ipvs/master linus/master v5.17-rc3 next-20220211] [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/Ricardo-Ribalda/net-Fix-build-wh... base: https://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next.git 5b91c5cc0e7be4e41567cb2a6e21a8bb682c7cc5 config: arc-randconfig-r043-20220211 (https://download.01.org/0day-ci/archive/20220212/202202120329.TB5XJjoH-lk...) compiler: arc-elf-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/f9b7fbd36ce386e1b9fb64f316878a4e0... git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Ricardo-Ribalda/net-Fix-build-when-CONFIG_INET-is-not-enabled/20220212-004127 git checkout f9b7fbd36ce386e1b9fb64f316878a4e011c1a09 # 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=arc SHELL=/bin/bash net/core/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>): 2061 | void __sk_defer_free_flush(struct sock *sk) | ^~~~~~~~~~~~~~~~~~~~~ vim +/__sk_defer_free_flush +2061 net/core/sock.c 2060 2062 { 2063 struct llist_node *head; 2064 struct sk_buff *skb, *n; 2065 2066 head = llist_del_all(&sk->defer_list); 2067 llist_for_each_entry_safe(skb, n, head, ll_node) { 2068 prefetch(n); 2069 skb_mark_not_on_list(skb); 2070 __kfree_skb(skb); 2071 } 2072 } 2073 EXPORT_SYMBOL(__sk_defer_free_flush); 2074 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org