[RFC PATCH] dma-direct: dma_contiguous_pernuma_area[] can be static

[kbuild test robot]

Signed-off-by: kbuild test robot <lkp@xxxxxxxxx>
---
 contiguous.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/dma/contiguous.c b/kernel/dma/contiguous.c
index 4b10d0ca0456d..2094c8e0590ac 100644
--- a/kernel/dma/contiguous.c
+++ b/kernel/dma/contiguous.c
@@ -37,7 +37,7 @@
 #endif
 
 struct cma *dma_contiguous_default_area;
-struct cma *dma_contiguous_pernuma_area[MAX_NUMNODES];
+static struct cma *dma_contiguous_pernuma_area[MAX_NUMNODES];
 
 /*
  * Default global CMA area size can be defined in kernel's .config.