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charset="utf-8" BPF selftest fails to build with below error: CLNG-BPF [test_progs] lsm_cgroup.bpf.o progs/lsm_cgroup.c:105:21: error: variable has incomplete type 'struct sock= addr_ll' 105 | struct sockaddr_ll sa =3D {}; | ^ progs/lsm_cgroup.c:105:9: note: forward declaration of 'struct sockaddr_ll' 105 | struct sockaddr_ll sa =3D {}; | ^ 1 error generated. lsm_cgroup selftest requires sockaddr_ll structure which is not there in vmlinux.h when the kernel is built with CONFIG_PACKET=3Dm. Enabling CONFIG_PACKET=3Dy ensures that sockaddr_ll is available in vmlinux, allowing it to be captured in the generated vmlinux.h for bpf selftests. Reported-by: Sachin P Bappalige Signed-off-by: Saket Kumar Bhaskar Acked-by: Daniel Borkmann --- tools/testing/selftests/bpf/config | 1 + 1 file changed, 1 insertion(+) diff --git a/tools/testing/selftests/bpf/config b/tools/testing/selftests/b= pf/config index f74e1ea0ad3b..7247833fe623 100644 --- a/tools/testing/selftests/bpf/config +++ b/tools/testing/selftests/bpf/config @@ -105,6 +105,7 @@ CONFIG_IP_NF_IPTABLES=3Dy CONFIG_IP6_NF_IPTABLES=3Dy CONFIG_IP6_NF_FILTER=3Dy CONFIG_NF_NAT=3Dy +CONFIG_PACKET=3Dy CONFIG_RC_CORE=3Dy CONFIG_SECURITY=3Dy CONFIG_SECURITYFS=3Dy --=20 2.43.5