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tracing: Prevent build warning: 'ftrace_graph_buf' defined but not used
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>
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@ -2274,7 +2274,6 @@ void ftrace_set_notrace(unsigned char *buf, int len, int reset)
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#define FTRACE_FILTER_SIZE COMMAND_LINE_SIZE
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static char ftrace_notrace_buf[FTRACE_FILTER_SIZE] __initdata;
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static char ftrace_filter_buf[FTRACE_FILTER_SIZE] __initdata;
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static char ftrace_graph_buf[FTRACE_FILTER_SIZE] __initdata;
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static int __init set_ftrace_notrace(char *str)
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{
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@ -2291,6 +2290,7 @@ static int __init set_ftrace_filter(char *str)
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__setup("ftrace_filter=", set_ftrace_filter);
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#ifdef CONFIG_FUNCTION_GRAPH_TRACER
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static char ftrace_graph_buf[FTRACE_FILTER_SIZE] __initdata;
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static int __init set_graph_function(char *str)
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{
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strlcpy(ftrace_graph_buf, str, FTRACE_FILTER_SIZE);
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