cpumask: cpu_coregroup_mask(): x86

Impact: New API

Like cpu_coregroup_map, but returns a (const) pointer.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Mike Travis <travis@sgi.com>
Cc: Ingo Molnar <mingo@redhat.com>
diff --git a/arch/x86/include/asm/topology.h b/arch/x86/include/asm/topology.h
index 45da5dc..168203c 100644
--- a/arch/x86/include/asm/topology.h
+++ b/arch/x86/include/asm/topology.h
@@ -231,6 +231,7 @@
 #endif
 
 extern cpumask_t cpu_coregroup_map(int cpu);
+extern const struct cpumask *cpu_coregroup_mask(int cpu);
 
 #ifdef ENABLE_TOPO_DEFINES
 #define topology_physical_package_id(cpu)	(cpu_data(cpu).phys_proc_id)