Fix undefined reference to can_cpei_retarget for simulator build

[Ian Wienand]

Hi,

The change @ http://tinyurl.com/dsxf4 broke the simulator build
(http://www.gelato.unsw.edu.au/kerncomp).

The simulator build doesn't turn on ACPI, so doesn't have a definition
of can_cpei_retarget.  Suggested patch attached.

Thanks,

-i
[EMAIL PROTECTED]
http://www.gelato.unsw.edu.au

diff --git a/arch/ia64/kernel/topology.c b/arch/ia64/kernel/topology.c
--- a/arch/ia64/kernel/topology.c
+++ b/arch/ia64/kernel/topology.c
@@ -36,12 +36,14 @@ 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);
 }

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