linux-kernel - [PATCH] powerpc: fix DEBUG_PREEMPT warning when warning

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Date:	Fri, 8 Feb 2008 18:25:13 +0000 (GMT)
From:	Hugh Dickins <hugh@...itas.com>
To:	Paul Mackerras <paulus@...ba.org>
cc:	linuxppc-dev@...abs.org, linux-kernel@...r.kernel.org
Subject: [PATCH] powerpc: fix DEBUG_PREEMPT warning when warning

The powerpc show_regs prints CPU using smp_processor_id: change that to
raw_smp_processor_id, so that when it's showing a WARN_ON backtrace without
preemption disabled, DEBUG_PREEMPT doesn't mess up that warning with its own.

Signed-off-by: Hugh Dickins <hugh@...itas.com>
---

 powerpc/kernel/process.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- 2.6.24-git18/arch/powerpc/kernel/process.c	2008-01-24 22:58:37.000000000 +0000
+++ linux/arch/powerpc/kernel/process.c	2008-02-08 12:01:31.000000000 +0000
@@ -462,7 +462,7 @@ void show_regs(struct pt_regs * regs)
 	       current, task_pid_nr(current), current->comm, task_thread_info(current));
 
 #ifdef CONFIG_SMP
-	printk(" CPU: %d", smp_processor_id());
+	printk(" CPU: %d", raw_smp_processor_id());
 #endif /* CONFIG_SMP */
 
 	for (i = 0;  i < 32;  i++) {
--
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