x86, apic: Remove x86_32_numa_cpu_node callback

Since commit b5660ba76b ("x86, platforms: Remove NUMAQ") removed NUMAQ,
the x86_32_numa_cpu_node() apic callback has been obsolete.  Remove it.

Signed-off-by: David Rientjes <rientjes@google.com>
Link: http://lkml.kernel.org/r/alpine.DEB.2.02.1407302348060.17503@chino.kir.corp.google.com
Signed-off-by: H. Peter Anvin <hpa@zytor.com>

arch/x86/include/asm/apic.h

@@ -370,14 +370,6 @@ struct apic {
 	 * won't be applied properly during early boot in this case.
 	 */
 	int (*x86_32_early_logical_apicid)(int cpu);
-
-	/*
-	 * Optional method called from setup_local_APIC() after logical
-	 * apicid is guaranteed to be known to initialize apicid -> node
-	 * mapping if NUMA initialization hasn't done so already.  Don't
-	 * add new users.
-	 */
-	int (*x86_32_numa_cpu_node)(int cpu);
 #endif
 };
 

arch/x86/kernel/apic/apic.c

@@ -1342,17 +1342,6 @@ void setup_local_APIC(void)
 	/* always use the value from LDR */
 	early_per_cpu(x86_cpu_to_logical_apicid, cpu) =
 		logical_smp_processor_id();
-
-	/*
-	 * Some NUMA implementations (NUMAQ) don't initialize apicid to
-	 * node mapping during NUMA init.  Now that logical apicid is
-	 * guaranteed to be known, give it another chance.  This is already
-	 * a bit too late - percpu allocation has already happened without
-	 * proper NUMA affinity.
-	 */
-	if (apic->x86_32_numa_cpu_node)
-		set_apicid_to_node(early_per_cpu(x86_cpu_to_apicid, cpu),
-				   apic->x86_32_numa_cpu_node(cpu));
 #endif
 
 	/*