1 files changed, 1 insertions, 0 deletions

diff --git a/include/linux/tcp.h b/include/linux/tcp.h
index bcc828d3b9b9..66d85a80a1ec 100644
--- a/include/linux/tcp.h
+++ b/include/linux/tcp.h
@@ -153,6 +153,7 @@ struct tcp_sock {
         u32     snd_sml;        /* Last byte of the most recently transmitted small packet */
         u32     rcv_tstamp;     /* timestamp of last received ACK (for keepalives) */
         u32     lsndtime;       /* timestamp of last sent data packet (for restart window) */
+        u32     last_oow_ack_time;  /* timestamp of last out-of-window ACK */
 
         u32     tsoffset;       /* timestamp offset */