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-rw-r--r--include/linux/ftrace.h13
1 files changed, 13 insertions, 0 deletions
diff --git a/include/linux/ftrace.h b/include/linux/ftrace.h
index 0547214..9f7880d 100644
--- a/include/linux/ftrace.h
+++ b/include/linux/ftrace.h
@@ -496,4 +496,17 @@ static inline int test_tsk_trace_graph(struct task_struct *tsk)
#endif /* CONFIG_TRACING */
+
+#ifdef CONFIG_HW_BRANCH_TRACER
+
+void trace_hw_branch(u64 from, u64 to);
+void trace_hw_branch_oops(void);
+
+#else /* CONFIG_HW_BRANCH_TRACER */
+
+static inline void trace_hw_branch(u64 from, u64 to) {}
+static inline void trace_hw_branch_oops(void) {}
+
+#endif /* CONFIG_HW_BRANCH_TRACER */
+
#endif /* _LINUX_FTRACE_H */