diff --git a/[refs] b/[refs]
index 43e868ab14c9..1342daf6f8d1 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 4f911b0daf0f7028a4fe792b701a48d10da36d84
+refs/heads/master: 5dd48a235c3f78620e582ebb253d64d02747d173
diff --git a/trunk/arch/microblaze/include/asm/page.h b/trunk/arch/microblaze/include/asm/page.h
index 880c988c2237..9b66c0fa9a32 100644
--- a/trunk/arch/microblaze/include/asm/page.h
+++ b/trunk/arch/microblaze/include/asm/page.h
@@ -164,7 +164,8 @@ extern int page_is_ram(unsigned long pfn);
 #  endif /* CONFIG_MMU */
 
 #  ifndef CONFIG_MMU
-#  define pfn_valid(pfn)	((pfn) >= min_low_pfn && (pfn) <= max_mapnr)
+#  define pfn_valid(pfn)	(((pfn) >= min_low_pfn) && \
+				((pfn) <= (min_low_pfn + max_mapnr)))
 #  define ARCH_PFN_OFFSET	(PAGE_OFFSET >> PAGE_SHIFT)
 #  else /* CONFIG_MMU */
 #  define ARCH_PFN_OFFSET	(memory_start >> PAGE_SHIFT)