1 files changed, 2 insertions, 3 deletions

diff --git a/include/asm-x86_64/mmzone.h b/include/asm-x86_64/mmzone.h
index 8d48dc7e43a7..69baaa8a3ce0 100644
--- a/include/asm-x86_64/mmzone.h
+++ b/include/asm-x86_64/mmzone.h
@@ -17,16 +17,15 @@
 /* Simple perfect hash to map physical addresses to node numbers */
 extern int memnode_shift; 
 extern u8  memnodemap[NODEMAPSIZE]; 
-extern int maxnode;
 
 extern struct pglist_data *node_data[];
 
 static inline __attribute__((pure)) int phys_to_nid(unsigned long addr) 
 { 
-        int nid; 
+        unsigned nid; 
         VIRTUAL_BUG_ON((addr >> memnode_shift) >= NODEMAPSIZE);
         nid = memnodemap[addr >> memnode_shift]; 
-        VIRTUAL_BUG_ON(nid > maxnode); 
+        VIRTUAL_BUG_ON(nid >= MAX_NUMNODES || !node_data[nid]); 
         return nid; 
 }