1 files changed, 9 insertions, 0 deletions

diff --git a/arch/ia64/kernel/topology.c b/arch/ia64/kernel/topology.c
index f1aafd4c05f9..92ff46ad21e2 100644
--- a/arch/ia64/kernel/topology.c
+++ b/arch/ia64/kernel/topology.c
@@ -36,6 +36,15 @@ int arch_register_cpu(int num)
         parent = &sysfs_nodes[cpu_to_node(num)];
 #endif /* CONFIG_NUMA */
 
+#ifdef CONFIG_ACPI_BOOT
+        /*
+         * If CPEI cannot be re-targetted, and this is
+         * CPEI target, then dont create the control file
+         */
+        if (!can_cpei_retarget() && is_cpu_cpei_target(num))
+                sysfs_cpus[num].cpu.no_control = 1;
+#endif
+
         return register_cpu(&sysfs_cpus[num].cpu, num, parent);
 }