From 8487d1231830917099c801e4f2f0e698e8535063 Mon Sep 17 00:00:00 2001
From: Bharata B Rao <bharata@linux.vnet.ibm.com>
Date: Thu, 2 Jul 2015 16:23:16 +1000
Subject: [PATCH] cpus: Add a macro to walk CPUs in reverse
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Add CPU_FOREACH_REVERSE that walks CPUs in reverse.

Needed for PowerPC CPU device tree reorganization.

Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com>
Reviewed-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alexander Graf <agraf@suse.de>
---
 include/qom/cpu.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/include/qom/cpu.h b/include/qom/cpu.h
index 39f0f19fb0..42f42f5a2d 100644
--- a/include/qom/cpu.h
+++ b/include/qom/cpu.h
@@ -323,6 +323,8 @@ extern struct CPUTailQ cpus;
 #define CPU_FOREACH(cpu) QTAILQ_FOREACH(cpu, &cpus, node)
 #define CPU_FOREACH_SAFE(cpu, next_cpu) \
     QTAILQ_FOREACH_SAFE(cpu, &cpus, node, next_cpu)
+#define CPU_FOREACH_REVERSE(cpu) \
+    QTAILQ_FOREACH_REVERSE(cpu, &cpus, CPUTailQ, node)
 #define first_cpu QTAILQ_FIRST(&cpus)
 
 DECLARE_TLS(CPUState *, current_cpu);