From 9100f92c1f97cda8ba4ace31a5fab5129ee3bdc2 Mon Sep 17 00:00:00 2001
From: =?utf8?q?=E9=BB=84=E6=B6=9B?= <huangtao@rock-chips.com>
Date: Thu, 12 Jul 2012 09:30:38 +0800
Subject: [PATCH] rk: fiq_debugger: better support cpu cmd, never switch when
 target cpu is offline

---
 arch/arm/common/fiq_debugger.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/arch/arm/common/fiq_debugger.c b/arch/arm/common/fiq_debugger.c
index c95af41324a9..9617d374df4b 100644
--- a/arch/arm/common/fiq_debugger.c
+++ b/arch/arm/common/fiq_debugger.c
@@ -630,6 +630,11 @@ static void switch_cpu(struct fiq_debugger_state *state, int cpu)
 	else {
 		struct cpumask cpumask;
 
+		if (!cpu_online(cpu)) {
+			debug_printf(state, "cpu %d offline\n", cpu);
+			return;
+		}
+
 		cpumask_clear(&cpumask);
 		cpumask_set_cpu(cpu, &cpumask);
 
-- 
2.34.1