From: Andrew Morton <akpm@linux-foundation.org>
Subject: mm-meminit-inline-some-helper-functions-fix

mm/page_alloc.c: In function 'memmap_init_zone':
mm/page_alloc.c:4287: error: implicit declaration of function 'early_pfn_in_nid'

Cc: Mel Gorman <mgorman@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 mm/page_alloc.c |    8 ++++++++
 1 file changed, 8 insertions(+)

diff -puN mm/page_alloc.c~mm-meminit-inline-some-helper-functions-fix mm/page_alloc.c
--- a/mm/page_alloc.c~mm-meminit-inline-some-helper-functions-fix
+++ a/mm/page_alloc.c
@@ -950,8 +950,16 @@ static inline bool __meminit early_pfn_i
 {
 	return meminit_pfn_in_nid(pfn, node, &early_pfnnid_cache);
 }
+
+#else
+
+static inline bool __meminit early_pfn_in_nid(unsigned long pfn, int node)
+{
+	return true;
+}
 #endif
 
+
 #ifdef CONFIG_CMA
 /* Free whole pageblock and set its migration type to MIGRATE_CMA. */
 void __init init_cma_reserved_pageblock(struct page *page)
_