NUMA_NO_NODE has been exported globally and thus it can replace NID_INVAL

in the acpi code.

Also removes the unused acpi_unmap_pxm_to_node() function.

Cc: Len Brown <lenb@kernel.org>
Cc: Cyrill Gorcunov <gorcunov@openvz.org>
Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
Reviewed-by: Christoph Lameter <cl@linux-foundation.org>
Signed-off-by: David Rientjes <rientjes@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

drivers/acpi/numa.c

@@ -28,6 +28,7 @@
 #include <linux/types.h>
 #include <linux/errno.h>
 #include <linux/acpi.h>
+#include <linux/numa.h>
 #include <acpi/acpi_bus.h>
 
 #define PREFIX "ACPI: "
@@ -39,15 +40,15 @@ ACPI_MODULE_NAME("numa");
 static nodemask_t nodes_found_map = NODE_MASK_NONE;
 
 /* maps to convert between proximity domain and logical node ID */
-static int pxm_to_node_map[MAX_PXM_DOMAINS]
-				= { [0 ... MAX_PXM_DOMAINS - 1] = NID_INVAL };
+static int pxm_to_node_map[MAX_PXM_DOMAINS]				
+			= { [0 ... MAX_PXM_DOMAINS - 1] = NUMA_NO_NODE };
 static int node_to_pxm_map[MAX_NUMNODES]
-				= { [0 ... MAX_NUMNODES - 1] = PXM_INVAL };
+			= { [0 ... MAX_NUMNODES - 1] = PXM_INVAL };
 
 int pxm_to_node(int pxm)
 {
 	if (pxm < 0)
-		return NID_INVAL;
+		return NUMA_NO_NODE;
 	return pxm_to_node_map[pxm];
 }
 
@@ -68,9 +69,9 @@ int acpi_map_pxm_to_node(int pxm)
 {
 	int node = pxm_to_node_map[pxm];
 
-	if (node < 0){
+	if (node < 0) {
 		if (nodes_weight(nodes_found_map) >= MAX_NUMNODES)
-			return NID_INVAL;
+			return NUMA_NO_NODE;
 		node = first_unset_node(nodes_found_map);
 		__acpi_map_pxm_to_node(pxm, node);
 		node_set(node, nodes_found_map);
@@ -79,16 +80,6 @@ int acpi_map_pxm_to_node(int pxm)
 	return node;
 }
 
-#if 0
-void __cpuinit acpi_unmap_pxm_to_node(int node)
-{
-	int pxm = node_to_pxm_map[node];
-	pxm_to_node_map[pxm] = NID_INVAL;
-	node_to_pxm_map[node] = PXM_INVAL;
-	node_clear(node, nodes_found_map);
-}
-#endif  /*  0  */
-
 static void __init
 acpi_table_print_srat_entry(struct acpi_subtable_header *header)
 {