From: Michal Hocko <mhocko@suse.cz>
Subject: mm-meminit-inline-some-helper-functions-fix2

mm/page_alloc.c: In function `deferred_init_memmap':
mm/page_alloc.c:1135:4: error: implicit declaration of function `meminit_pfn_in_nid' [-Werror=implicit-function-declaration]
    if (!meminit_pfn_in_nid(pfn, nid, &nid_init_state)) {
    ^

because randconfig decided to disable CONFIG_NODES_SPAN_OTHER_NODES.

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

 mm/page_alloc.c |    5 +++++
 1 file changed, 5 insertions(+)

diff -puN mm/page_alloc.c~mm-meminit-inline-some-helper-functions-fix2 mm/page_alloc.c
--- a/mm/page_alloc.c~mm-meminit-inline-some-helper-functions-fix2
+++ a/mm/page_alloc.c
@@ -957,6 +957,11 @@ static inline bool __meminit early_pfn_i
 {
 	return true;
 }
+static inline bool __meminit meminit_pfn_in_nid(unsigned long pfn, int node,
+					struct mminit_pfnnid_cache *state)
+{
+	return true;
+}
 #endif
 
 
_