mptcp: avoid unneeded address copy

[ Upstream commit 2bb9a37f0e194ed95c70603b0efc7898a5a0d9b4 ]

In the syn_recv fallback path, the msk is unused. We can skip
setting the socket address.

Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Reviewed-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Stable-dep-of: 7e8b88ec35ee ("mptcp: consolidate passive msk socket initialization")
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/net/mptcp/subflow.c b/net/mptcp/subflow.c
index 67ddbf6..4995a62 100644 (file)
--- a/net/mptcp/subflow.c
+++ b/net/mptcp/subflow.c
@@ -759,8 +759,6 @@ create_child:
                                goto dispose_child;
                        }
 
-                       if (new_msk)
-                               mptcp_copy_inaddrs(new_msk, child);
                        mptcp_subflow_drop_ctx(child);
                        goto out;
                }