x86, NUMA: trivial cleanups

* Kill no longer used struct bootnode.

* Kill dangling declaration of pxm_to_nid() in numa_32.h.

* Make setup_node_bootmem() static.
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: David Rientjes <rientjes@google.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>

arch/x86/include/asm/acpi.h

@@ -183,8 +183,6 @@ static inline void disable_acpi(void) { }
 
 #define ARCH_HAS_POWER_INIT	1
 
-struct bootnode;
-
 #ifdef CONFIG_ACPI_NUMA
 extern int acpi_numa;
 extern int x86_acpi_numa_init(void);

arch/x86/include/asm/amd_nb.h

@@ -11,7 +11,6 @@ struct amd_nb_bus_dev_range {
 
 extern const struct pci_device_id amd_nb_misc_ids[];
 extern const struct amd_nb_bus_dev_range amd_nb_bus_dev_ranges[];
-struct bootnode;
 
 extern bool early_is_amd_nb(u32 value);
 extern int amd_cache_northbridges(void);

arch/x86/include/asm/numa_32.h

@@ -3,8 +3,6 @@
 
 extern int numa_off;
 
-extern int pxm_to_nid(int pxm);
-
 #ifdef CONFIG_HIGHMEM
 extern void set_highmem_pages_init(void);
 #else

arch/x86/include/asm/numa_64.h

@@ -3,18 +3,11 @@
 
 #include <linux/nodemask.h>
 
-struct bootnode {
-	u64 start;
-	u64 end;
-};
-
 #define ZONE_ALIGN (1UL << (MAX_ORDER+PAGE_SHIFT))
 
 extern int numa_off;
 
 extern unsigned long numa_free_all_bootmem(void);
-extern void setup_node_bootmem(int nodeid, unsigned long start,
-			       unsigned long end);
 
 #ifdef CONFIG_NUMA
 /*

arch/x86/mm/numa_64.c

@@ -95,7 +95,7 @@ int __init numa_add_memblk(int nid, u64 start, u64 end)
 }
 
 /* Initialize bootmem allocator for a node */
-void __init
+static void __init
 setup_node_bootmem(int nid, unsigned long start, unsigned long end)
 {
 	const u64 nd_low = (u64)MAX_DMA_PFN << PAGE_SHIFT;