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Message-ID: <20070309154640.7d01bf68@dxpl.pdx.osdl.net>
Date: Fri, 9 Mar 2007 15:46:40 -0800
From: Stephen Hemminger <shemminger@...ux-foundation.org>
To: Andi Kleen <ak@...e.de>
Cc: linux-kernel@...r.kernel.org
Subject: [PATCH] dma_ops as const
The dma_ops structure can be const since it never changes
after boot.
Signed-off-by: Stephen Hemminger <shemminger@...ux-foundation.org>
---
arch/x86_64/kernel/pci-calgary.c | 2 +-
arch/x86_64/kernel/pci-gart.c | 2 +-
arch/x86_64/kernel/pci-nommu.c | 2 +-
arch/x86_64/kernel/pci-swiotlb.c | 2 +-
arch/x86_64/mm/init.c | 2 +-
include/asm-x86_64/dma-mapping.h | 2 +-
6 files changed, 6 insertions(+), 6 deletions(-)
diff --git a/arch/x86_64/kernel/pci-calgary.c b/arch/x86_64/kernel/pci-calgary.c
index 04480c3..5bd20b5 100644
--- a/arch/x86_64/kernel/pci-calgary.c
+++ b/arch/x86_64/kernel/pci-calgary.c
@@ -507,7 +507,7 @@ error:
return ret;
}
-static struct dma_mapping_ops calgary_dma_ops = {
+static const struct dma_mapping_ops calgary_dma_ops = {
.alloc_coherent = calgary_alloc_coherent,
.map_single = calgary_map_single,
.unmap_single = calgary_unmap_single,
diff --git a/arch/x86_64/kernel/pci-gart.c b/arch/x86_64/kernel/pci-gart.c
index 030eb37..f7723e6 100644
--- a/arch/x86_64/kernel/pci-gart.c
+++ b/arch/x86_64/kernel/pci-gart.c
@@ -552,7 +552,7 @@ static __init int init_k8_gatt(struct agp_kern_info *info)
extern int agp_amd64_init(void);
-static struct dma_mapping_ops gart_dma_ops = {
+static const struct dma_mapping_ops gart_dma_ops = {
.mapping_error = NULL,
.map_single = gart_map_single,
.map_simple = gart_map_simple,
diff --git a/arch/x86_64/kernel/pci-nommu.c b/arch/x86_64/kernel/pci-nommu.c
index df09ab0..6dade0c 100644
--- a/arch/x86_64/kernel/pci-nommu.c
+++ b/arch/x86_64/kernel/pci-nommu.c
@@ -79,7 +79,7 @@ void nommu_unmap_sg(struct device *dev, struct scatterlist *sg,
{
}
-struct dma_mapping_ops nommu_dma_ops = {
+const struct dma_mapping_ops nommu_dma_ops = {
.map_single = nommu_map_single,
.unmap_single = nommu_unmap_single,
.map_sg = nommu_map_sg,
diff --git a/arch/x86_64/kernel/pci-swiotlb.c b/arch/x86_64/kernel/pci-swiotlb.c
index eb18be5..4b4569a 100644
--- a/arch/x86_64/kernel/pci-swiotlb.c
+++ b/arch/x86_64/kernel/pci-swiotlb.c
@@ -12,7 +12,7 @@
int swiotlb __read_mostly;
EXPORT_SYMBOL(swiotlb);
-struct dma_mapping_ops swiotlb_dma_ops = {
+const struct dma_mapping_ops swiotlb_dma_ops = {
.mapping_error = swiotlb_dma_mapping_error,
.alloc_coherent = swiotlb_alloc_coherent,
.free_coherent = swiotlb_free_coherent,
diff --git a/arch/x86_64/mm/init.c b/arch/x86_64/mm/init.c
index ec31534..5ca6173 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;
diff --git a/include/asm-x86_64/dma-mapping.h b/include/asm-x86_64/dma-mapping.h
index d2af227..6897e2a 100644
--- a/include/asm-x86_64/dma-mapping.h
+++ b/include/asm-x86_64/dma-mapping.h
@@ -52,7 +52,7 @@ struct dma_mapping_ops {
};
extern dma_addr_t bad_dma_address;
-extern struct dma_mapping_ops* dma_ops;
+extern const struct dma_mapping_ops* dma_ops;
extern int iommu_merge;
static inline int dma_mapping_error(dma_addr_t dma_addr)
--
1.5.0.2
-
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