[PATCH mptcp-next v3 2/7] mptcp: take TCP_MAXSEG handling into __mptcp_setsockopt_set_val

From: Gang Yan <[email protected]>

mptcp_setsockopt_all_sf is only used in 'TCP_MAXSEG', and it can be
replaced with __mptcp_setsockopt_set_val.

Signed-off-by: Gang Yan <[email protected]>
---
 net/ipv4/tcp.c      | 1 +
 net/mptcp/sockopt.c | 5 ++---
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index b427f924608c..5915d0e62f43 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -3830,6 +3830,7 @@ int tcp_sock_set_maxseg(struct sock *sk, int val)
 	WRITE_ONCE(tcp_sk(sk)->rx_opt.user_mss, val);
 	return 0;
 }
+EXPORT_SYMBOL(tcp_sock_set_maxseg);
 
 /*
  *	Socket option code for TCP.
diff --git a/net/mptcp/sockopt.c b/net/mptcp/sockopt.c
index 9c4faa0d82ef..a7d4135757e7 100644
--- a/net/mptcp/sockopt.c
+++ b/net/mptcp/sockopt.c
@@ -889,9 +889,8 @@ static int mptcp_setsockopt_sol_tcp(struct mptcp_sock *msk, int optname,
 						 val);
 		break;
 	case TCP_MAXSEG:
-		msk->maxseg = val;
-		ret = mptcp_setsockopt_all_sf(msk, SOL_TCP, optname, optval,
-					      optlen);
+		ret = __mptcp_setsockopt_set_val(msk, &tcp_sock_set_maxseg,
+						 &msk->maxseg, val);
 		break;
 	default:
 		ret = -ENOPROTOOPT;
-- 
2.43.0