From: Steven Rostedt <srostedt@redhat.com>
Date: Fri, 4 Nov 2011 20:32:25 +0000 (-0400)
Subject: perf: Fix parsing of __print_flags() in TP_printk()
X-Git-Tag: v3.2-rc5~39^2~1
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=d06c27b22aa66e48e32f03f9387328a9af9b0625;p=users%2Fjedix%2Flinux-maple.git

perf: Fix parsing of __print_flags() in TP_printk()

A update is made to the sched:sched_switch event that adds some
logic to the first parameter of the __print_flags() that shows the
state of tasks. This change cause perf to fail parsing the flags.

A simple fix is needed to have the parser be able to process ops
within the argument.

Cc: stable@vger.kernel.org
Reported-by: Andrew Vagin <avagin@openvz.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---

diff --git a/tools/perf/util/trace-event-parse.c b/tools/perf/util/trace-event-parse.c
index 0a7ed5b5e281..6c164dc9ee95 100644
--- a/tools/perf/util/trace-event-parse.c
+++ b/tools/perf/util/trace-event-parse.c
@@ -1537,6 +1537,8 @@ process_flags(struct event *event, struct print_arg *arg, char **tok)
 	field = malloc_or_die(sizeof(*field));
 
 	type = process_arg(event, field, &token);
+	while (type == EVENT_OP)
+		type = process_op(event, field, &token);
 	if (test_type_token(type, token, EVENT_DELIM, ","))
 		goto out_free;