1 files changed, 1 insertions, 0 deletions

diff --git a/include/linux/socket.h b/include/linux/socket.h
index 25d6322fb635..ba7b2e817cfa 100644
--- a/include/linux/socket.h
+++ b/include/linux/socket.h
@@ -268,6 +268,7 @@ struct ucred {
 #define MSG_SENDPAGE_NOTLAST 0x20000 /* sendpage() internal : not the last page */
 #define MSG_EOF         MSG_FIN
 
+#define MSG_FASTOPEN    0x20000000      /* Send data in TCP SYN */
 #define MSG_CMSG_CLOEXEC 0x40000000     /* Set close_on_exit for file
                                            descriptor received through
                                            SCM_RIGHTS */