1 files changed, 3 insertions, 2 deletions

diff --git a/include/asm-m68knommu/page.h b/include/asm-m68knommu/page.h
index 05e03df0ec29..ff6a9265ed1c 100644
--- a/include/asm-m68knommu/page.h
+++ b/include/asm-m68knommu/page.h
@@ -73,8 +73,8 @@ extern unsigned long memory_end;
 
 #ifndef __ASSEMBLY__
 
-#define __pa(vaddr)             virt_to_phys((void *)vaddr)
-#define __va(paddr)             phys_to_virt((unsigned long)paddr)
+#define __pa(vaddr)             virt_to_phys((void *)(vaddr))
+#define __va(paddr)             phys_to_virt((unsigned long)(paddr))
 
 #define virt_to_pfn(kaddr)      (__pa(kaddr) >> PAGE_SHIFT)
 #define pfn_to_virt(pfn)        __va((pfn) << PAGE_SHIFT)
@@ -84,6 +84,7 @@ extern unsigned long memory_end;
 
 #define pfn_to_page(pfn)        virt_to_page(pfn_to_virt(pfn))
 #define page_to_pfn(page)       virt_to_pfn(page_to_virt(page))
+#define pfn_valid(pfn)          ((pfn) < max_mapnr)
 
 #define virt_addr_valid(kaddr)  (((void *)(kaddr) >= (void *)PAGE_OFFSET) && \
                                 ((void *)(kaddr) < (void *)memory_end))