1 files changed, 4 insertions, 6 deletions

diff --git a/arch/sparc64/kernel/stacktrace.c b/arch/sparc64/kernel/stacktrace.c
index e9d7f0660f2e..237e7f8a40ac 100644
--- a/arch/sparc64/kernel/stacktrace.c
+++ b/arch/sparc64/kernel/stacktrace.c
@@ -5,6 +5,8 @@
 #include <asm/ptrace.h>
 #include <asm/stacktrace.h>
 
+#include "kstack.h"
+
 void save_stack_trace(struct stack_trace *trace)
 {
         unsigned long ksp, fp, thread_base;
@@ -24,17 +26,13 @@ void save_stack_trace(struct stack_trace *trace)
                 struct pt_regs *regs;
                 unsigned long pc;
 
-                /* Bogus frame pointer? */
-                if (fp < (thread_base + sizeof(struct thread_info)) ||
-                    fp > (thread_base + THREAD_SIZE - sizeof(struct sparc_stackf)))
+                if (!kstack_valid(tp, fp))
                         break;
 
                 sf = (struct sparc_stackf *) fp;
                 regs = (struct pt_regs *) (sf + 1);
 
-                if (((unsigned long)regs <=
-                     (thread_base + THREAD_SIZE - sizeof(*regs))) &&
-                    (regs->magic & ~0x1ff) == PT_REGS_MAGIC) {
+                if (kstack_is_trap_frame(tp, regs)) {
                         if (!(regs->tstate & TSTATE_PRIV))
                                 break;
                         pc = regs->tpc;