1 files changed, 19 insertions, 0 deletions

diff --git a/arch/arm/kernel/stacktrace.c b/arch/arm/kernel/stacktrace.c
index 5a80ddfe7031..f065eb05d254 100644
--- a/arch/arm/kernel/stacktrace.c
+++ b/arch/arm/kernel/stacktrace.c
@@ -149,6 +149,25 @@ static noinline void __save_stack_trace(struct task_struct *tsk,
                 trace->entries[trace->nr_entries++] = ULONG_MAX;
 }
 
+void save_stack_trace_regs(struct pt_regs *regs, struct stack_trace *trace)
+{
+        struct stack_trace_data data;
+        struct stackframe frame;
+
+        data.trace = trace;
+        data.skip = trace->skip;
+        data.no_sched_functions = 0;
+
+        frame.fp = regs->ARM_fp;
+        frame.sp = regs->ARM_sp;
+        frame.lr = regs->ARM_lr;
+        frame.pc = regs->ARM_pc;
+
+        walk_stackframe(&frame, save_trace, &data);
+        if (trace->nr_entries < trace->max_entries)
+                trace->entries[trace->nr_entries++] = ULONG_MAX;
+}
+
 void save_stack_trace_tsk(struct task_struct *tsk, struct stack_trace *trace)
 {
         __save_stack_trace(tsk, trace, 1);