2 files changed, 26 insertions, 2 deletions

diff --git a/arch/arm/include/asm/system.h b/arch/arm/include/asm/system.h
index 1120f18a6b17..ec4327a4653d 100644
--- a/arch/arm/include/asm/system.h
+++ b/arch/arm/include/asm/system.h
@@ -63,6 +63,11 @@
 #include <asm/outercache.h>
 
 #define __exception     __attribute__((section(".exception.text")))
+#ifdef CONFIG_FUNCTION_GRAPH_TRACER
+#define __exception_irq_entry   __irq_entry
+#else
+#define __exception_irq_entry   __exception
+#endif
 
 struct thread_info;
 struct task_struct;
diff --git a/arch/arm/include/asm/traps.h b/arch/arm/include/asm/traps.h
index 491960bf4260..124475afb007 100644
--- a/arch/arm/include/asm/traps.h
+++ b/arch/arm/include/asm/traps.h
@@ -15,13 +15,32 @@ struct undef_hook {
 void register_undef_hook(struct undef_hook *hook);
 void unregister_undef_hook(struct undef_hook *hook);
 
+#ifdef CONFIG_FUNCTION_GRAPH_TRACER
+static inline int __in_irqentry_text(unsigned long ptr)
+{
+        extern char __irqentry_text_start[];
+        extern char __irqentry_text_end[];
+
+        return ptr >= (unsigned long)&__irqentry_text_start &&
+               ptr < (unsigned long)&__irqentry_text_end;
+}
+#else
+static inline int __in_irqentry_text(unsigned long ptr)
+{
+        return 0;
+}
+#endif
+
 static inline int in_exception_text(unsigned long ptr)
 {
         extern char __exception_text_start[];
         extern char __exception_text_end[];
+        int in;
+
+        in = ptr >= (unsigned long)&__exception_text_start &&
+             ptr < (unsigned long)&__exception_text_end;
 
-        return ptr >= (unsigned long)&__exception_text_start &&
-               ptr < (unsigned long)&__exception_text_end;
+        return in ? : __in_irqentry_text(ptr);
 }
 
 extern void __init early_trap_init(void);