Hi Lingpeng, Thank you for the patch! Yet something to improve: [auto build test ERROR on bpf-next/master] [also build test ERROR on bpf/master] [cannot apply to v5.5] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system. BTW, we also suggest to use '--base' option to specify the base tree in git format-patch, please see https://stackoverflow.com/a/37406982] url: https://github.com/0day-ci/linux/commits/Lingpeng-Chen/bpf-Add-sock-ops-get-netns-helpers/20200207-212755 base: https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git master config: h8300-randconfig-a001-20200207 (attached as .config) compiler: h8300-linux-gcc (GCC) 7.5.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # save the attached .config to linux build tree GCC_VERSION=7.5.0 make.cross ARCH=h8300 If you fix the issue, kindly add following tag Reported-by: kbuild test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): In file included from arch/h8300/include/asm/atomic.h:7:0, from include/linux/atomic.h:7, from include/asm-generic/bitops/lock.h:5, from arch/h8300/include/asm/bitops.h:170, from include/linux/bitops.h:26, from include/linux/kernel.h:12, from include/linux/list.h:9, from include/linux/module.h:12, from net/core/filter.c:20: net/core/filter.c: In function 'bpf_clear_redirect_map': arch/h8300/include/asm/cmpxchg.h:54:3: warning: value computed is not used [-Wunused-value] ((__typeof__(*(ptr)))__cmpxchg_local_generic((ptr), \ ~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ (unsigned long)(o), \ ~~~~~~~~~~~~~~~~~~~~~ (unsigned long)(n), \ ~~~~~~~~~~~~~~~~~~~~~ sizeof(*(ptr)))) ~~~~~~~~~~~~~~~~ include/asm-generic/cmpxchg.h:106:28: note: in expansion of macro 'cmpxchg_local' #define cmpxchg(ptr, o, n) cmpxchg_local((ptr), (o), (n)) ^~~~~~~~~~~~~ net/core/filter.c:3516:4: note: in expansion of macro 'cmpxchg' cmpxchg(&ri->map, map, NULL); ^~~~~~~ net/core/filter.c: In function '____bpf_sock_ops_get_netns': >> net/core/filter.c:4430:19: error: 'possible_net_t {aka struct <anonymous>}' has no member named 'net' return sk->sk_net.net->ns.inum; ^ vim +4430 net/core/filter.c 4423 4424 BPF_CALL_1(bpf_sock_ops_get_netns, struct bpf_sock_ops_kern *, bpf_sock) 4425 { 4426 struct sock *sk = bpf_sock->sk; 4427 4428 if (!IS_ENABLED(CONFIG_NET_NS)) 4429 return 0; > 4430 return sk->sk_net.net->ns.inum; 4431 } 4432 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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