2 files changed, 3 insertions, 1 deletions

diff --git a/include/uapi/linux/errqueue.h b/include/uapi/linux/errqueue.h
index 17437cf297b7..07bdce1f444a 100644
--- a/include/uapi/linux/errqueue.h
+++ b/include/uapi/linux/errqueue.h
@@ -40,6 +40,7 @@ struct scm_timestamping {
 enum {
         SCM_TSTAMP_SND,         /* driver passed skb to NIC, or HW */
         SCM_TSTAMP_SCHED,       /* data entered the packet scheduler */
+        SCM_TSTAMP_ACK,         /* data acknowledged by peer */
 };
 
 #endif /* _UAPI_LINUX_ERRQUEUE_H */
diff --git a/include/uapi/linux/net_tstamp.h b/include/uapi/linux/net_tstamp.h
index 60733845fcdd..ff354021bb69 100644
--- a/include/uapi/linux/net_tstamp.h
+++ b/include/uapi/linux/net_tstamp.h
@@ -22,8 +22,9 @@ enum {
         SOF_TIMESTAMPING_RAW_HARDWARE = (1<<6),
         SOF_TIMESTAMPING_OPT_ID = (1<<7),
         SOF_TIMESTAMPING_TX_SCHED = (1<<8),
+        SOF_TIMESTAMPING_TX_ACK = (1<<9),
 
-        SOF_TIMESTAMPING_LAST = SOF_TIMESTAMPING_TX_SCHED,
+        SOF_TIMESTAMPING_LAST = SOF_TIMESTAMPING_TX_ACK,
         SOF_TIMESTAMPING_MASK = (SOF_TIMESTAMPING_LAST - 1) |
                                  SOF_TIMESTAMPING_LAST
 };