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tracing: Prevent build warning: 'ftrace_graph_buf' defined but not used

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Prevent build warning when CONFIG_FUNCTION_GRAPH_TRACER is not set.

Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com>
LKML-Reference: <4AF24381.5060307@cn.fujitsu.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
This commit is contained in:
Lai Jiangshan 2009-11-05 11:16:17 +08:00 committed by Steven Rostedt
parent 5a50e33cc9
commit f6060f4681
1 changed files with 1 additions and 1 deletions
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kernel/trace/ftrace.c
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@ -2274,7 +2274,6 @@ void ftrace_set_notrace(unsigned char *buf, int len, int reset)
#define FTRACE_FILTER_SIZE COMMAND_LINE_SIZE
static char ftrace_notrace_buf[FTRACE_FILTER_SIZE] __initdata;
static char ftrace_filter_buf[FTRACE_FILTER_SIZE] __initdata;
static char ftrace_graph_buf[FTRACE_FILTER_SIZE] __initdata;
static int __init set_ftrace_notrace(char *str)
{
@ -2291,6 +2290,7 @@ static int __init set_ftrace_filter(char *str)
__setup("ftrace_filter=", set_ftrace_filter);
#ifdef CONFIG_FUNCTION_GRAPH_TRACER
static char ftrace_graph_buf[FTRACE_FILTER_SIZE] __initdata;
static int __init set_graph_function(char *str)
{
strlcpy(ftrace_graph_buf, str, FTRACE_FILTER_SIZE);