powerpc: Reduce scariness of interrupt frames in stack traces

Some people see things like "Exception: 501" in stack traces in dmesg
and assume that means that something has gone badly wrong, when in
fact "Exception: 501" just means a device interrupt was taken.
This changes "Exception" to "interrupt" to make it clearer that we
are just recording the fact of a change in control flow rather than
some error condition.

Signed-off-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c
index 9c34327e38ca800865048496e1b7c3a7e2bd7091..bf44ae962ab82206bb148c674dd2dbb7f093d1fd 100644 (file)
--- a/arch/powerpc/kernel/process.c
+++ b/arch/powerpc/kernel/process.c
@@ -1581,7 +1581,7 @@ void show_stack(struct task_struct *tsk, unsigned long *stack)
                        struct pt_regs *regs = (struct pt_regs *)
                                (sp + STACK_FRAME_OVERHEAD);
                        lr = regs->link;
-                       printk("--- Exception: %lx at %pS\n    LR = %pS\n",
+                       printk("--- interrupt: %lx at %pS\n    LR = %pS\n",
                               regs->trap, (void *)regs->nip, (void *)lr);
                        firstframe = 1;
                }