Hi Ryoga, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on nf-next/master] [also build test WARNING on nf/master ipvs/master linus/master v5.14-rc3 next-20210728] [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/Ryoga-Saito/net-add-netfilter-hooks-to-track-SRv6-encapsulated-flows/20210729-165540 base: https://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next.git master config: arc-allyesconfig (attached as .config) compiler: arceb-elf-gcc (GCC) 10.3.0 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/94a2d9ee8f1c6c8ad998758c4f494719ea7b9a9d git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Ryoga-Saito/net-add-netfilter-hooks-to-track-SRv6-encapsulated-flows/20210729-165540 git checkout 94a2d9ee8f1c6c8ad998758c4f494719ea7b9a9d # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-10.3.0 make.cross ARCH=arc If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>): >> net/netfilter/nf_conntrack_lwtunnel.c:26:5: warning: no previous prototype for 'nf_conntrack_lwtunnel_sysctl_handler' [-Wmissing-prototypes] 26 | int nf_conntrack_lwtunnel_sysctl_handler(struct ctl_table *table, int write, | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ vim +/nf_conntrack_lwtunnel_sysctl_handler +26 net/netfilter/nf_conntrack_lwtunnel.c 25 > 26 int nf_conntrack_lwtunnel_sysctl_handler(struct ctl_table *table, int write, 27 void *buffer, size_t *lenp, 28 loff_t *ppos) 29 { 30 int proc_nf_ct_lwtunnel_enabled = 0; 31 struct ctl_table tmp = { 32 .procname = table->procname, 33 .data = &proc_nf_ct_lwtunnel_enabled, 34 .maxlen = sizeof(int), 35 .mode = table->mode, 36 .extra1 = SYSCTL_ZERO, 37 .extra2 = SYSCTL_ONE, 38 }; 39 int ret; 40 41 if (!write) 42 proc_nf_ct_lwtunnel_enabled = nf_conntrack_lwtunnel_get(); 43 44 ret = proc_dointvec_minmax(&tmp, write, buffer, lenp, ppos); 45 46 if (write && ret == 0) 47 ret = nf_conntrack_lwtunnel_set(proc_nf_ct_lwtunnel_enabled); 48 49 return ret; 50 } 51 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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