x86, apic: clean up ->cpu_to_logical_apicid()

- separate the namespace

 - remove macros

Signed-off-by: Ingo Molnar <mingo@elte.hu>
diff --git a/arch/x86/mach-generic/bigsmp.c b/arch/x86/mach-generic/bigsmp.c
index 2f41214..cd6f02b 100644
--- a/arch/x86/mach-generic/bigsmp.c
+++ b/arch/x86/mach-generic/bigsmp.c
@@ -81,7 +81,7 @@
 	.setup_apic_routing		= bigsmp_setup_apic_routing,
 	.multi_timer_check		= NULL,
 	.apicid_to_node			= bigsmp_apicid_to_node,
-	.cpu_to_logical_apicid		= cpu_to_logical_apicid,
+	.cpu_to_logical_apicid		= bigsmp_cpu_to_logical_apicid,
 	.cpu_present_to_apicid		= cpu_present_to_apicid,
 	.apicid_to_cpu_present		= apicid_to_cpu_present,
 	.setup_portio_remap		= setup_portio_remap,