From: Geliang Tang <tanggeliang@kylinos.cn>

Export bpf_mptcp_sk(), it is used in this test program.

Signed-off-by: Geliang Tang <tanggeliang@kylinos.cn>
---
 tools/testing/selftests/bpf/progs/mptcp_bpf.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tools/testing/selftests/bpf/progs/mptcp_bpf.h b/tools/testing/selftests/bpf/progs/mptcp_bpf.h
index b1f6e1fb467e..3b20cfd44505 100644
--- a/tools/testing/selftests/bpf/progs/mptcp_bpf.h
+++ b/tools/testing/selftests/bpf/progs/mptcp_bpf.h
@@ -46,6 +46,7 @@ mptcp_subflow_tcp_sock(const struct mptcp_subflow_context *subflow)
 extern struct mptcp_sock *bpf_mptcp_sock_acquire(struct mptcp_sock *msk) __ksym;
 extern void bpf_mptcp_sock_release(struct mptcp_sock *msk) __ksym;
 
+extern struct mptcp_sock *bpf_mptcp_sk(struct sock *sk) __ksym;
 extern struct mptcp_subflow_context *
 bpf_mptcp_subflow_ctx(const struct sock *sk) __ksym;
 extern struct sock *
-- 
2.43.0