linux-kernel - [PATCH] iommu: intel-iommu: constify intel_dma_ops and intel_iommu

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Date:   Thu, 22 Jun 2017 14:09:10 +0530
From:   Arvind Yadav <arvind.yadav.cs@...il.com>
To:     dwmw2@...radead.org, jroedel@...e.de, joro@...tes.org
Cc:     iommu@...ts.linux-foundation.org, linux-kernel@...r.kernel.org
Subject: [PATCH] iommu: intel-iommu: constify intel_dma_ops and intel_iommu_group

File size before:
   text	   data	    bss	    dec	    hex	filename
  32765	    758	   1824	  35347	   8a13	drivers/iommu/intel-iommu.o

File size After adding 'const':
   text	   data	    bss	    dec	    hex	filename
  32989	    534	   1824	  35347	   8a13	drivers/iommu/intel-iommu.o

Signed-off-by: Arvind Yadav <arvind.yadav.cs@...il.com>
---
 drivers/iommu/intel-iommu.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c
index 90ab011..9e35ad6 100644
--- a/drivers/iommu/intel-iommu.c
+++ b/drivers/iommu/intel-iommu.c
@@ -3970,7 +3970,7 @@ static int intel_mapping_error(struct device *dev, dma_addr_t dma_addr)
 	return !dma_addr;
 }
 
-struct dma_map_ops intel_dma_ops = {
+const struct dma_map_ops intel_dma_ops = {
 	.alloc = intel_alloc_coherent,
 	.free = intel_free_coherent,
 	.map_sg = intel_map_sg,
@@ -4816,7 +4816,7 @@ static ssize_t intel_iommu_show_ndoms_used(struct device *dev,
 	NULL,
 };
 
-static struct attribute_group intel_iommu_group = {
+static const struct attribute_group intel_iommu_group = {
 	.name = "intel-iommu",
 	.attrs = intel_iommu_attrs,
 };
-- 
1.9.1