page_alloc.c: remove add_from_early_node_map()

add_from_early_node_map() is unused.
Signed-off-by: Kautuk Consul <consul.kautuk@gmail.com>
Acked-by: David Rientjes <rientjes@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

include/linux/mm.h

@@ -1295,8 +1295,6 @@ extern void get_pfn_range_for_nid(unsigned int nid,
 extern unsigned long find_min_pfn_with_active_regions(void);
 extern void free_bootmem_with_active_regions(int nid,
 						unsigned long max_low_pfn);
-int add_from_early_node_map(struct range *range, int az,
-				   int nr_range, int nid);
 extern void sparse_memory_present_with_active_regions(int nid);
 
 #endif /* CONFIG_HAVE_MEMBLOCK_NODE_MAP */

mm/page_alloc.c

@@ -3940,18 +3940,6 @@ void __init free_bootmem_with_active_regions(int nid, unsigned long max_low_pfn)
 	}
 }
 
-int __init add_from_early_node_map(struct range *range, int az,
-				   int nr_range, int nid)
-{
-	unsigned long start_pfn, end_pfn;
-	int i;
-
-	/* need to go over early_node_map to find out good range for node */
-	for_each_mem_pfn_range(i, nid, &start_pfn, &end_pfn, NULL)
-		nr_range = add_range(range, az, nr_range, start_pfn, end_pfn);
-	return nr_range;
-}
-
 /**
  * sparse_memory_present_with_active_regions - Call memory_present for each active range
  * @nid: The node to call memory_present for. If MAX_NUMNODES, all nodes will be used.