diff --git a/arch/powerpc/kernel/dma-swiotlb.c b/arch/powerpc/kernel/dma-swiotlb.c
index e96cbbd9b449874e09dc38288abead50c8db1673..59c928564a038e490e260fb28862f022659d4d6f 100644
--- a/arch/powerpc/kernel/dma-swiotlb.c
+++ b/arch/powerpc/kernel/dma-swiotlb.c
@@ -21,7 +21,6 @@
 #include <asm/dma.h>
 #include <asm/abs_addr.h>
 
-int swiotlb __read_mostly;
 unsigned int ppc_swiotlb_enable;
 
 /*