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

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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>
Acked-By: Anton Ivanov <anton.ivanov@cambridgegreys.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
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Johannes Berg 2020-09-10 11:31:13 +02:00 committed by Richard Weinberger
parent ebef8ea2ba
commit d080060913
1 changed files with 1 additions and 0 deletions
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arch/um/kernel/time.c
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@ -106,6 +106,7 @@ static void time_travel_handle_message(struct um_timetravel_msg *msg,
break;
}
resp.seq = msg->seq;
os_write_file(time_travel_ext_fd, &resp, sizeof(resp));
}