tree: https://github.com/dsahern/linux nexthops/active-backup head: d812063276459dee9973ef8f4789ca63869ba9ae commit: 0afee2a54f8fb316a318dd295b21f6608b3154d7 [3/6] nexthops: Refactor nexthop_select_path config: mips-randconfig-r025-20200519 (attached as .config) compiler: mipsel-linux-gcc (GCC) 9.3.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross git checkout 0afee2a54f8fb316a318dd295b21f6608b3154d7 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=mips If you fix the issue, kindly add following tag as appropriate Reported-by: kbuild test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>, old ones prefixed by <<): net/ipv4/nexthop.c: In function 'good_nh': 487 | bool rc = false; | ^~ vim +/rc +487 net/ipv4/nexthop.c 480 481 /* nexthops always check if it is good and does 482 * not rely on a sysctl for this behavior 483 */ 484 static bool good_nh(struct nexthop *nh) 485 { 486 struct nh_info *nhi; 488 489 nhi = rcu_dereference(nh->nh_info); 490 switch (nhi->family) { 491 case AF_INET: 492 if (ipv4_good_nh(&nhi->fib_nh)) 493 rc = true; 494 break; 495 case AF_INET6: 496 if (ipv6_good_nh(&nhi->fib6_nh)) 497 rc = true; 498 break; 499 } 500 501 return true; 502 } 503 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org