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| author | Matthieu Baerts <matthieu.baerts@tessares.net> | 2022-10-22 02:45:05 +0200 |
|---|---|---|
| committer | Paolo Abeni <pabeni@redhat.com> | 2022-10-25 12:32:54 +0200 |
| commit | caea64675d8b91deb59140a92f190124399ccd37 (patch) | |
| tree | 9cb4c3e1bae5e902fc5ab28f6d1cc90adc4cfc8e /net/mptcp/sockopt.c | |
| parent | mptcp: add TCP_FASTOPEN_NO_COOKIE support (diff) | |
| download | linux-caea64675d8b91deb59140a92f190124399ccd37.tar.xz linux-caea64675d8b91deb59140a92f190124399ccd37.zip | |
mptcp: sockopt: use new helper for TCP_DEFER_ACCEPT
mptcp_setsockopt_sol_tcp_defer() was doing the same thing as
mptcp_setsockopt_first_sf_only() except for the returned code in case of
error.
Ignoring the error is needed to mimic how TCP_DEFER_ACCEPT is handled
when used with "plain" TCP sockets.
The specific function for TCP_DEFER_ACCEPT can be replaced by the new
mptcp_setsockopt_first_sf_only() helper and errors can be ignored to
stay compatible with TCP. A bit of cleanup.
Suggested-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Reviewed-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Acked-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Diffstat (limited to 'net/mptcp/sockopt.c')
| -rw-r--r-- | net/mptcp/sockopt.c | 16 |
1 files changed, 3 insertions, 13 deletions
diff --git a/net/mptcp/sockopt.c b/net/mptcp/sockopt.c index 1857281a0dd5..f85e9bbfe86f 100644 --- a/net/mptcp/sockopt.c +++ b/net/mptcp/sockopt.c @@ -758,18 +758,6 @@ static int mptcp_setsockopt_v4(struct mptcp_sock *msk, int optname, return -EOPNOTSUPP; } -static int mptcp_setsockopt_sol_tcp_defer(struct mptcp_sock *msk, sockptr_t optval, - unsigned int optlen) -{ - struct socket *listener; - - listener = __mptcp_nmpc_socket(msk); - if (!listener) - return 0; /* TCP_DEFER_ACCEPT does not fail */ - - return tcp_setsockopt(listener->sk, SOL_TCP, TCP_DEFER_ACCEPT, optval, optlen); -} - static int mptcp_setsockopt_first_sf_only(struct mptcp_sock *msk, int level, int optname, sockptr_t optval, unsigned int optlen) { @@ -810,7 +798,9 @@ static int mptcp_setsockopt_sol_tcp(struct mptcp_sock *msk, int optname, case TCP_NODELAY: return mptcp_setsockopt_sol_tcp_nodelay(msk, optval, optlen); case TCP_DEFER_ACCEPT: - return mptcp_setsockopt_sol_tcp_defer(msk, optval, optlen); + /* See tcp.c: TCP_DEFER_ACCEPT does not fail */ + mptcp_setsockopt_first_sf_only(msk, SOL_TCP, optname, optval, optlen); + return 0; case TCP_FASTOPEN_CONNECT: case TCP_FASTOPEN_NO_COOKIE: return mptcp_setsockopt_first_sf_only(msk, SOL_TCP, optname, |