1 files changed, 4 insertions, 0 deletions

diff --git a/arch/avr32/oprofile/op_model_avr32.c b/arch/avr32/oprofile/op_model_avr32.c
index df42325c7f81..a3e9b3c4845a 100644
--- a/arch/avr32/oprofile/op_model_avr32.c
+++ b/arch/avr32/oprofile/op_model_avr32.c
@@ -22,6 +22,8 @@
 #define AVR32_PERFCTR_IRQ_GROUP 0
 #define AVR32_PERFCTR_IRQ_LINE  1
 
+void avr32_backtrace(struct pt_regs * const regs, unsigned int depth);
+
 enum { PCCNT, PCNT0, PCNT1, NR_counter };
 
 struct avr32_perf_counter {
@@ -223,6 +225,8 @@ int __init oprofile_arch_init(struct oprofile_operations *ops)
         memcpy(ops, &avr32_perf_counter_ops,
                         sizeof(struct oprofile_operations));
 
+        ops->backtrace = avr32_backtrace;
+
         printk(KERN_INFO "oprofile: using AVR32 performance monitoring.\n");
 
         return 0;