With KHO (Kexec HandOver), we want to preserve trace buffers. To parse
them, we need to ensure that all trace events that exist in the logs are
identical to the ones we parse as. That means we need to match the
events before and after kexec.

As a first step towards that, let's give every event a unique name. That
way we can clearly identify the event before and after kexec and restore
its ID post-kexec.

Signed-off-by: Alexander Graf <graf@amazon.com>
---
 include/linux/trace_events.h         |  1 +
 include/trace/trace_events.h         |  2 ++
 kernel/trace/blktrace.c              |  1 +
 kernel/trace/trace_branch.c          |  1 +
 kernel/trace/trace_events.c          |  3 +++
 kernel/trace/trace_functions_graph.c |  4 +++-
 kernel/trace/trace_output.c          | 13 +++++++++++++
 kernel/trace/trace_probe.c           |  3 +++
 kernel/trace/trace_syscalls.c        | 29 ++++++++++++++++++++++++++++
 9 files changed, 56 insertions(+), 1 deletion(-)

diff --git a/include/linux/trace_events.h b/include/linux/trace_events.h
index d68ff9b1247f..7670224aa92d 100644
--- a/include/linux/trace_events.h
+++ b/include/linux/trace_events.h

@@ -149,6 +149,7 @@ struct trace_event {
 	struct hlist_node		node;
 	int				type;
 	struct trace_event_functions	*funcs;
+	const char			*name;
 };