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authorSteven Rostedt (Red Hat) <rostedt@goodmis.org>2015-09-29 10:15:10 -0400
committerSteven Rostedt <rostedt@goodmis.org>2015-09-29 13:23:58 -0400
commit729358da95a1b3850ef892e9384f58932da1dc69 (patch)
treed7d4ad01b17ed7490e9689d1eb79396b9dbb7099 /kernel/trace/trace_irqsoff.c
parenta3418a364ec3c8f0c29bf3f4cfc71dc6f240150e (diff)
downloadblackbird-op-linux-729358da95a1b3850ef892e9384f58932da1dc69.tar.gz
blackbird-op-linux-729358da95a1b3850ef892e9384f58932da1dc69.zip
tracing: Only create function graph options when it is compiled in
Do not create fuction graph tracer options when function graph tracer is not even compiled in. Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Diffstat (limited to 'kernel/trace/trace_irqsoff.c')
-rw-r--r--kernel/trace/trace_irqsoff.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/kernel/trace/trace_irqsoff.c b/kernel/trace/trace_irqsoff.c
index 446480a86123..bd9cd0e2c13c 100644
--- a/kernel/trace/trace_irqsoff.c
+++ b/kernel/trace/trace_irqsoff.c
@@ -57,15 +57,15 @@ irq_trace(void)
# define irq_trace() (0)
#endif
-#define is_graph() (trace_flags & TRACE_ITER_DISPLAY_GRAPH)
-
#ifdef CONFIG_FUNCTION_GRAPH_TRACER
static int irqsoff_display_graph(struct trace_array *tr, int set);
+# define is_graph() (trace_flags & TRACE_ITER_DISPLAY_GRAPH)
#else
static inline int irqsoff_display_graph(struct trace_array *tr, int set)
{
return -EINVAL;
}
+# define is_graph() false
#endif
/*
@@ -556,8 +556,10 @@ static int irqsoff_flag_changed(struct trace_array *tr, u32 mask, int set)
if (mask & TRACE_ITER_FUNCTION)
return irqsoff_function_set(tr, set);
+#ifdef CONFIG_FUNCTION_GRAPH_TRACER
if (mask & TRACE_ITER_DISPLAY_GRAPH)
return irqsoff_display_graph(tr, set);
+#endif
return trace_keep_overwrite(tracer, mask, set);
}
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