Hi Martynas, kernel test robot noticed the following build errors: [auto build test ERROR on bpf/master] url: https://github.com/intel-lab-lkp/linux/commits/Martynas-Pumputis/bpf-Derive-source-IP-addr-via-bpf_-_fib_lookup/20230929-231536 base: https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf.git master patch link: https://lore.kernel.org/r/20230929150717.120463-2-m%40lambda.lt patch subject: [PATCH bpf 1/2] bpf: Derive source IP addr via bpf_*_fib_lookup() config: csky-allmodconfig (https://download.01.org/0day-ci/archive/20231001/202310011747.2WjYkVa8-lkp@xxxxxxxxx/config) compiler: csky-linux-gcc (GCC) 13.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231001/202310011747.2WjYkVa8-lkp@xxxxxxxxx/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202310011747.2WjYkVa8-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): csky-linux-ld: net/core/filter.o: in function `ip6_route_get_saddr.constprop.0': filter.c:(.text+0x7594): undefined reference to `ipv6_dev_get_saddr' >> csky-linux-ld: filter.c:(.text+0x75c0): undefined reference to `ipv6_dev_get_saddr' -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
