[MIPS] Type proof reimplementation of cmpxchg.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
diff --git a/include/asm-mips/local.h b/include/asm-mips/local.h
index ed882c8..7034a01 100644
--- a/include/asm-mips/local.h
+++ b/include/asm-mips/local.h
@@ -4,6 +4,7 @@
 #include <linux/percpu.h>
 #include <linux/bitops.h>
 #include <asm/atomic.h>
+#include <asm/cmpxchg.h>
 #include <asm/war.h>
 
 typedef struct