x86: Make default_send_IPI_mask_sequence/allbutself_logical() 32bit only

Both functions are used only in 32bit.  Put them inside
CONFIG_X86_32. This is to prepare for logical apicid handling
update.

- Cyrill Gorcunov spotted that I forgot to move declarations in
ipi.h   under CONFIG_X86_32.  Fixed.
Signed-off-by: NTejun Heo <tj@kernel.org>
Reviewed-by: NPekka Enberg <penberg@kernel.org>
Reviewed-by: NCyrill Gorcunov <gorcunov@gmail.com>
Acked-by: NYinghai Lu <yinghai@kernel.org>
Cc: eric.dumazet@gmail.com
Cc: brgerst@gmail.com
Cc: shaohui.zheng@intel.com
Cc: rientjes@google.com
LKML-Reference: <1295789862-25482-4-git-send-email-tj@kernel.org>
Signed-off-by: NIngo Molnar <mingo@elte.hu>

arch/x86/include/asm/ipi.h

@@ -123,10 +123,6 @@ extern void default_send_IPI_mask_sequence_phys(const struct cpumask *mask,
 						 int vector);
 extern void default_send_IPI_mask_allbutself_phys(const struct cpumask *mask,
 							 int vector);
-extern void default_send_IPI_mask_sequence_logical(const struct cpumask *mask,
-							 int vector);
-extern void default_send_IPI_mask_allbutself_logical(const struct cpumask *mask,
-							 int vector);
 
 /* Avoid include hell */
 #define NMI_VECTOR 0x02
@@ -150,6 +146,10 @@ static inline void __default_local_send_IPI_all(int vector)
 }
 
 #ifdef CONFIG_X86_32
+extern void default_send_IPI_mask_sequence_logical(const struct cpumask *mask,
+							 int vector);
+extern void default_send_IPI_mask_allbutself_logical(const struct cpumask *mask,
+							 int vector);
 extern void default_send_IPI_mask_logical(const struct cpumask *mask,
 						 int vector);
 extern void default_send_IPI_allbutself(int vector);

arch/x86/kernel/apic/ipi.c

@@ -56,6 +56,8 @@ void default_send_IPI_mask_allbutself_phys(const struct cpumask *mask,
 	local_irq_restore(flags);
 }
 
+#ifdef CONFIG_X86_32
+
 void default_send_IPI_mask_sequence_logical(const struct cpumask *mask,
 						 int vector)
 {
@@ -96,8 +98,6 @@ void default_send_IPI_mask_allbutself_logical(const struct cpumask *mask,
 	local_irq_restore(flags);
 }
 
-#ifdef CONFIG_X86_32
-
 /*
  * This is only used on smaller machines.
  */