1 files changed, 6 insertions, 1 deletions

diff --git a/arch/microblaze/include/asm/uaccess.h b/arch/microblaze/include/asm/uaccess.h
index e2adad33950e..ce5defb259a4 100644
--- a/arch/microblaze/include/asm/uaccess.h
+++ b/arch/microblaze/include/asm/uaccess.h
@@ -75,7 +75,12 @@ struct exception_table_entry {
 
 #ifndef CONFIG_MMU
 
-extern int ___range_ok(unsigned long addr, unsigned long size);
+/* Check against bounds of physical memory */
+static inline int ___range_ok(unsigned long addr, unsigned long size)
+{
+        return ((addr < memory_start) ||
+                ((addr + size) > memory_end));
+}
 
 #define __range_ok(addr, size) \
                 ___range_ok((unsigned long)(addr), (unsigned long)(size))