On Wed, Dec 27, 2023 at 7:10 PM Daniel Xu <dxu@xxxxxxxxx> wrote: > > Hi Vincent, > > On Wed, Dec 27, 2023 at 06:59:12PM -0800, Vincent Li wrote: > > Hi, > > > > When I make the bpf-next master branch bpf selftests, which failed > > with error below, seems related to commit 02b4e126e6 bpf: selftests: > > test_tunnel: Use vmlinux.h declarations ? > > > > CLNG-BPF [test_maps] test_tunnel_kern.bpf.o > > > > progs/test_tunnel_kern.c:30:13: error: declaration of 'struct > > bpf_fou_encap' will not be visible outside of this function > > [-Werror,-Wvisibility] > > > > struct bpf_fou_encap *encap, int type) __ksym; > > > > ^ > > > > progs/test_tunnel_kern.c:32:13: error: declaration of 'struct > > bpf_fou_encap' will not be visible outside of this function > > [-Werror,-Wvisibility] > > > > struct bpf_fou_encap *encap) __ksym; > > > > ^ > > > > progs/test_tunnel_kern.c:741:23: error: variable has incomplete type > > 'struct bpf_fou_encap' > > [...] > > Do you have CONFIG_NET_FOU enabled? I think you'll need that for > test_tunnel to build correctly. BPF CI enables this. > tools/testing/selftests/bpf/config has it set to =y. > Thanks Daniel for your quick response. I have CONFIG_NET_FOU enabled but as module (m), not builtin (y), I guess if enabled as module, the vmlinux.h would not include the bpf_fou_encap type. I will try tools/testing/selftests/bpf/config > Thanks, > Daniel
