linux-kernel - [PATCH 3/4] tools lib traceevent: Fix backward compatibility macros for pevent filter enums

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Date:	Wed, 23 Apr 2014 13:31:21 +0200
From:	Jiri Olsa <jolsa@...hat.com>
To:	Ingo Molnar <mingo@...nel.org>
Cc:	linux-kernel@...r.kernel.org, Steven Rostedt <rostedt@...dmis.org>,
	Jiri Olsa <jolsa@...hat.com>
Subject: [PATCH 3/4] tools lib traceevent: Fix backward compatibility macros for pevent filter enums

From: Steven Rostedt <rostedt@...dmis.org>

The return value for pevent_filter_match() is suppose to return FILTER_NONE
if the event doesn't have a filter, and FILTER_NOEXIST if there is no filter
at all. But the change 41e12e580a7 "tools lib traceevent: Refactor
pevent_filter_match() to get rid of die()" replaced the return value
with PEVENT_ERRNO__* values and added "backward compatibility" macros
that used the old names. Unfortunately, the NOEXIST and NONE macros were
swapped, and this broke users that use the old return names.

Signed-off-by: Steven Rostedt <rostedt@...dmis.org>
Link: http://lkml.kernel.org/r/20140421222346.0351ced4@gandalf.local.home
Signed-off-by: Jiri Olsa <jolsa@...hat.com>
---
 tools/lib/traceevent/event-parse.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tools/lib/traceevent/event-parse.h b/tools/lib/traceevent/event-parse.h
index 791c539..feab942 100644
--- a/tools/lib/traceevent/event-parse.h
+++ b/tools/lib/traceevent/event-parse.h
@@ -876,8 +876,8 @@ struct event_filter {
 struct event_filter *pevent_filter_alloc(struct pevent *pevent);
 
 /* for backward compatibility */
-#define FILTER_NONE		PEVENT_ERRNO__FILTER_NOT_FOUND
-#define FILTER_NOEXIST		PEVENT_ERRNO__NO_FILTER
+#define FILTER_NONE		PEVENT_ERRNO__NO_FILTER
+#define FILTER_NOEXIST		PEVENT_ERRNO__FILTER_NOT_FOUND
 #define FILTER_MISS		PEVENT_ERRNO__FILTER_MISS
 #define FILTER_MATCH		PEVENT_ERRNO__FILTER_MATCH
 
-- 
1.8.3.1

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