[PULL,18/30] cpus: Add a macro to walk CPUs in reverse
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Message ID 1436284182-5063-19-git-send-email-agraf@suse.de
State New
Headers show

Commit Message

Alexander Graf July 7, 2015, 3:49 p.m. UTC
From: Bharata B Rao <bharata@linux.vnet.ibm.com>

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(+)

Patch
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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);