[PATCH] x86-64: dma_ops as const

The dma_ops structure can be const since it never changes
after boot.

Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
Signed-off-by: Andi Kleen <ak@suse.de>

1 files changed, 1 insertions, 1 deletions

diff --git a/arch/x86_64/mm/init.c b/arch/x86_64/mm/init.c
index ec31534eb104..5ca61731f550 100644
--- a/arch/x86_64/mm/init.c
+++ b/arch/x86_64/mm/init.c
@@ -46,7 +46,7 @@
 #define Dprintk(x...)
 #endif
 
-struct dma_mapping_ops* dma_ops;
+const struct dma_mapping_ops* dma_ops;
 EXPORT_SYMBOL(dma_ops);
 
 static unsigned long dma_reserve __initdata;