UBUNTU: [Config] CONFIG_GENERIC_IRQ_DEBUGFS=y

[mirror_ubuntu-artful-kernel.git] / include / asm-generic / topology.h

diff --git a/include/asm-generic/topology.h b/include/asm-generic/topology.h
index fc824e2828f3cacad21cd7d3d9d98261cf1d78fb..5d2add1a6c964870b212f848879338f7b9b3ba18 100644 (file)
--- a/include/asm-generic/topology.h
+++ b/include/asm-generic/topology.h
@@ -48,7 +48,11 @@
 #define parent_node(node)      ((void)(node),0)
 #endif
 #ifndef cpumask_of_node
-#define cpumask_of_node(node)  ((void)node, cpu_online_mask)
+  #ifdef CONFIG_NEED_MULTIPLE_NODES
+    #define cpumask_of_node(node)      ((node) == 0 ? cpu_online_mask : cpu_none_mask)
+  #else
+    #define cpumask_of_node(node)      ((void)node, cpu_online_mask)
+  #endif
 #endif
 #ifndef pcibus_to_node
 #define pcibus_to_node(bus)    ((void)(bus), -1)