tg import create t/mptcp-send-out-checksum-for-MP_CAPABLE-with-data

.topmsg

@@ -1,4 +1,14 @@
-From: Matthieu Baerts <[email protected]>
-Subject: [PATCH] t/mptcp-send-out-checksum-for-MP_CAPABLE-with-data
+From: Geliang Tang <[email protected]>
+Subject: [PATCH] mptcp: send out checksum for MP_CAPABLE with data
 
-Signed-off-by: Matthieu Baerts <[email protected]>
+If the checksum is enabled, send out the data checksum with the
+MP_CAPABLE suboption with data.
+
+In mptcp_established_options_mp, save the data checksum in
+opts->ext_copy.csum. In mptcp_write_options, adjust the option length and
+send it out with the MP_CAPABLE suboption.
+
+Co-developed-by: Paolo Abeni <[email protected]>
+Signed-off-by: Paolo Abeni <[email protected]>
+Reviewed-by: Mat Martineau <[email protected]>
+Signed-off-by: Geliang Tang <[email protected]>