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[Qemu-ppc] [PATCH 15/22] cpus: Add a macro to walk CPUs in reverse

From: David Gibson
Subject: [Qemu-ppc] [PATCH 15/22] cpus: Add a macro to walk CPUs in reverse
Date: Wed, 24 Jun 2015 16:30:29 +1000

From: Bharata B Rao <address@hidden>

Add CPU_FOREACH_REVERSE that walks CPUs in reverse.

Needed for PowerPC CPU device tree reorganization.

Signed-off-by: Bharata B Rao <address@hidden>
Reviewed-by: Andreas Färber <address@hidden>
Signed-off-by: David Gibson <address@hidden>
 include/qom/cpu.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/include/qom/cpu.h b/include/qom/cpu.h
index 39f0f19..42f42f5 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);

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