1 files changed, 1 insertions, 1 deletions

diff --git a/arch/parisc/include/asm/mmzone.h b/arch/parisc/include/asm/mmzone.h
index 31835b998a5a..0e625ab9aaec 100644
--- a/arch/parisc/include/asm/mmzone.h
+++ b/arch/parisc/include/asm/mmzone.h
@@ -45,7 +45,7 @@ static inline int pfn_to_nid(unsigned long pfn)
                 return 0;
 
         i = pfn >> PFNNID_SHIFT;
-        BUG_ON(i >= sizeof(pfnnid_map) / sizeof(pfnnid_map[0]));
+        BUG_ON(i >= ARRAY_SIZE(pfnnid_map));
         r = pfnnid_map[i];
         BUG_ON(r == 0xff);