commit 816d650c9e42ae300db5477c326c6668220819ce
author Johannes Berg <johannes.berg@intel.com> Thu Sep 10 10:54:00 2020 +0200
committer Johannes Berg <johannes.berg@intel.com> Mon Sep 14 13:11:03 2020 +0200
tree fcc6073739968a360441abe34a0c2ea1f40ba9f7
parent ca7bdb1b511e9fd887b7710bfec756f21c4e83c4

um: time-travel: return the sequence number in ACK messages

For external time travel, the protocol says to return the
incoming sequence number in the ACK message to aid debugging,
so do that.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>

arch/um/kernel/time.c

diff --git a/arch/um/kernel/time.c b/arch/um/kernel/time.c
index c07436e8..3d109ff 100644
--- a/arch/um/kernel/time.c
+++ b/arch/um/kernel/time.c
@@ -106,6 +106,7 @@
 		break;
 	}
 
+	resp.seq = msg->seq;
 	os_write_file(time_travel_ext_fd, &resp, sizeof(resp));
 }