[PATCH] tracing: Define common event fields before enabling boot events

[David Carlier]

event_trace_enable() parses trace_event= filters before
event_trace_init_fields() has defined the common and generic fields,
so a filter on common_pid or comm fails and the event stays off until
event_trace_enable_again().

Fixes: 084100a1b579 ("tracing: Parse filter from boot event string")
Signed-off-by: David Carlier <devne...@gmail.com>
---
 kernel/trace/trace_events.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/trace/trace_events.c b/kernel/trace/trace_events.c
index a1ac2a02f4e2..e52351dd0e5e 100644
--- a/kernel/trace/trace_events.c
+++ b/kernel/trace/trace_events.c
@@ -5022,8 +5022,8 @@ void __init trace_event_init(void)
 {
        event_trace_memsetup();
        init_ftrace_syscalls();
-       event_trace_enable();
        event_trace_init_fields();
+       event_trace_enable();
 }
 
 #ifdef CONFIG_EVENT_TRACE_STARTUP_TEST
-- 
2.55.0