linux-kernel - [PATCH 10/15] tools/lib/traceevent: Remove call to exit() from tep_filter_add_filter

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Date:   Mon, 01 Apr 2019 12:43:15 -0400
From:   Steven Rostedt <rostedt@...dmis.org>
To:     linux-kernel@...r.kernel.org
Cc:     Arnaldo Carvalho de Melo <acme@...nel.org>,
        Ingo Molnar <mingo@...nel.org>, Jiri Olsa <jolsa@...hat.com>,
        Namhyung Kim <namhyung@...nel.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Tzvetomir Stoyanov <tstoyanov@...are.com>
Subject: [PATCH 10/15] tools/lib/traceevent: Remove call to exit() from
 tep_filter_add_filter_str()

From: Tzvetomir Stoyanov <tstoyanov@...are.com>

This patch removes call to exit() from tep_filter_add_filter_str(). A library
function should not force the application to exit. In the current implementation
tep_filter_add_filter_str() calls exit() when a special "test_filters" mode is
set, used only for debugging purposes. When this mode is set and a filter is
added - its string is printed to the console and exit() is called. This patch
changes the logic - when in "test_filters" mode, the filter string is still
printed, but the exit() is not called. It is up to the application to track when
"test_filters" mode is set and to call exit, if needed.

Link: http://lkml.kernel.org/r/20190326154328.28718-9-tstoyanov@vmware.com

Signed-off-by: Tzvetomir Stoyanov <tstoyanov@...are.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@...dmis.org>
---
 tools/lib/traceevent/parse-filter.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/tools/lib/traceevent/parse-filter.c b/tools/lib/traceevent/parse-filter.c
index 4ffd8b25a852..3320c0a0e343 100644
--- a/tools/lib/traceevent/parse-filter.c
+++ b/tools/lib/traceevent/parse-filter.c
@@ -1346,9 +1346,6 @@ enum tep_errno tep_filter_add_filter_str(struct tep_event_filter *filter,

 	free_events(events);

-	if (rtn >= 0 && pevent->test_filters)
-		exit(0);
-
 	return rtn;
 }

-- 
2.20.1