1 files changed, 2 insertions, 1 deletions

diff --git a/arch/powerpc/include/asm/reg.h b/arch/powerpc/include/asm/reg.h
index a3c28e46947..1170267736d 100644
--- a/arch/powerpc/include/asm/reg.h
+++ b/arch/powerpc/include/asm/reg.h
@@ -755,7 +755,8 @@
 #define mfspr(rn)       ({unsigned long rval; \
                         asm volatile("mfspr %0," __stringify(rn) \
                                 : "=r" (rval)); rval;})
-#define mtspr(rn, v)    asm volatile("mtspr " __stringify(rn) ",%0" : : "r" (v))
+#define mtspr(rn, v)    asm volatile("mtspr " __stringify(rn) ",%0" : : "r" (v)\
+                                     : "memory")
 
 #ifdef __powerpc64__
 #ifdef CONFIG_PPC_CELL