__field(u64, data_seq)
                __field(u32, subflow_seq)
                __field(u16, data_len)
+               __field(u16, csum)
                __field(u8, use_map)
                __field(u8, dsn64)
                __field(u8, data_fin)
                __field(u8, frozen)
                __field(u8, reset_transient)
                __field(u8, reset_reason)
+               __field(u8, csum_reqd)
        ),
 
        TP_fast_assign(
                __entry->data_seq = mpext->data_seq;
                __entry->subflow_seq = mpext->subflow_seq;
                __entry->data_len = mpext->data_len;
+               __entry->csum = (__force u16)mpext->csum;
                __entry->use_map = mpext->use_map;
                __entry->dsn64 = mpext->dsn64;
                __entry->data_fin = mpext->data_fin;
                __entry->frozen = mpext->frozen;
                __entry->reset_transient = mpext->reset_transient;
                __entry->reset_reason = mpext->reset_reason;
+               __entry->csum_reqd = mpext->csum_reqd;
        ),
 
-       TP_printk("data_ack=%llu data_seq=%llu subflow_seq=%u data_len=%u use_map=%u dsn64=%u data_fin=%u use_ack=%u ack64=%u mpc_map=%u frozen=%u reset_transient=%u reset_reason=%u",
+       TP_printk("data_ack=%llu data_seq=%llu subflow_seq=%u data_len=%u csum=%x use_map=%u dsn64=%u data_fin=%u use_ack=%u ack64=%u mpc_map=%u frozen=%u reset_transient=%u reset_reason=%u csum_reqd=%u",
                  __entry->data_ack, __entry->data_seq,
                  __entry->subflow_seq, __entry->data_len,
-                 __entry->use_map, __entry->dsn64,
-                 __entry->data_fin, __entry->use_ack,
-                 __entry->ack64, __entry->mpc_map,
-                 __entry->frozen, __entry->reset_transient,
-                 __entry->reset_reason)
+                 __entry->csum, __entry->use_map,
+                 __entry->dsn64, __entry->data_fin,
+                 __entry->use_ack, __entry->ack64,
+                 __entry->mpc_map, __entry->frozen,
+                 __entry->reset_transient, __entry->reset_reason,
+                 __entry->csum_reqd)
 );
 
 DEFINE_EVENT(mptcp_dump_mpext, get_mapping_status,