From: Frederic Weisbecker <fweisbec@gmail.com>
Date: Tue, 21 Apr 2009 22:41:09 +0000 (+0200)
Subject: tracing/events: protect __get_str()
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=6a74aa40907757ec98d8710ff66cd4cfe064e7d8;p=linux-beck.git

tracing/events: protect __get_str()

The __get_str() macro is used in a code part then its content should be
protected with parenthesis.

[ Impact: make macro definition more robust ]

Reported-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
---

diff --git a/include/trace/ftrace.h b/include/trace/ftrace.h
index 5a7d18c43634..a77f71a46dbe 100644
--- a/include/trace/ftrace.h
+++ b/include/trace/ftrace.h
@@ -123,7 +123,7 @@
 #define TP_printk(fmt, args...) fmt "\n", args
 
 #undef __get_str
-#define __get_str(field)	(char *)__entry + __entry->__str_loc_##field
+#define __get_str(field)	((char *)__entry + __entry->__str_loc_##field)
 
 #undef TRACE_EVENT
 #define TRACE_EVENT(call, proto, args, tstruct, assign, print)		\