selftests/bpf: Support when CONFIG_VXLAN=m

If CONFIG_VXLAN is 'm', struct vxlanhdr will not be in vmlinux.h.
Add a ___local variant to support cases where vxlan is a module.

Fixes: 8517b1abe5 ("selftests/bpf: Integrate test_tc_tunnel.sh tests into test_progs")
Signed-off-by: Alan Maguire <alan.maguire@oracle.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20260115163457.146267-1-alan.maguire@oracle.com
This commit is contained in:
Alan Maguire 2026-01-15 16:34:57 +00:00 • committed by Andrii Nakryiko
commit 47d440d0a5