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Diffstat (limited to 'include/linux/dma-mapping.h')
-rw-r--r--include/linux/dma-mapping.h42
1 files changed, 21 insertions, 21 deletions
diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h
index 10c5a17b1f51..f1da68b82c63 100644
--- a/include/linux/dma-mapping.h
+++ b/include/linux/dma-mapping.h
@@ -127,7 +127,7 @@ struct dma_map_ops {
int is_phys;
};
-extern struct dma_map_ops dma_noop_ops;
+extern const struct dma_map_ops dma_noop_ops;
#define DMA_BIT_MASK(n) (((n) == 64) ? ~0ULL : ((1ULL<<(n))-1))
@@ -170,8 +170,8 @@ int dma_mmap_from_coherent(struct device *dev, struct vm_area_struct *vma,
* dma dependent code. Code that depends on the dma-mapping
* API needs to set 'depends on HAS_DMA' in its Kconfig
*/
-extern struct dma_map_ops bad_dma_ops;
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+extern const struct dma_map_ops bad_dma_ops;
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
{
return &bad_dma_ops;
}
@@ -182,7 +182,7 @@ static inline dma_addr_t dma_map_single_attrs(struct device *dev, void *ptr,
enum dma_data_direction dir,
unsigned long attrs)
{
- struct dma_map_ops *ops = get_dma_ops(dev);
+ const struct dma_map_ops *ops = get_dma_ops(dev);
dma_addr_t addr;
kmemcheck_mark_initialized(ptr, size);
@@ -201,7 +201,7 @@ static inline void dma_unmap_single_attrs(struct device *dev, dma_addr_t addr,
enum dma_data_direction dir,
unsigned long attrs)
{
- struct dma_map_ops *ops = get_dma_ops(dev);
+ const struct dma_map_ops *ops = get_dma_ops(dev);
BUG_ON(!valid_dma_direction(dir));
if (ops->unmap_page)
@@ -217,7 +217,7 @@ static inline int dma_map_sg_attrs(struct device *dev, struct scatterlist *sg,
int nents, enum dma_data_direction dir,
unsigned long attrs)
{
- struct dma_map_ops *ops = get_dma_ops(dev);
+ const struct dma_map_ops *ops = get_dma_ops(dev);
int i, ents;
struct scatterlist *s;
@@ -235,7 +235,7 @@ static inline void dma_unmap_sg_attrs(struct device *dev, struct scatterlist *sg
int nents, enum dma_data_direction dir,
unsigned long attrs)
{
- struct dma_map_ops *ops = get_dma_ops(dev);
+ const struct dma_map_ops *ops = get_dma_ops(dev);
BUG_ON(!valid_dma_direction(dir));
debug_dma_unmap_sg(dev, sg, nents, dir);
@@ -249,7 +249,7 @@ static inline dma_addr_t dma_map_page_attrs(struct device *dev,
enum dma_data_direction dir,
unsigned long attrs)
{
- struct dma_map_ops *ops = get_dma_ops(dev);
+ const struct dma_map_ops *ops = get_dma_ops(dev);
dma_addr_t addr;
kmemcheck_mark_initialized(page_address(page) + offset, size);
@@ -265,7 +265,7 @@ static inline void dma_unmap_page_attrs(struct device *dev,
enum dma_data_direction dir,
unsigned long attrs)
{
- struct dma_map_ops *ops = get_dma_ops(dev);
+ const struct dma_map_ops *ops = get_dma_ops(dev);
BUG_ON(!valid_dma_direction(dir));
if (ops->unmap_page)
@@ -279,7 +279,7 @@ static inline dma_addr_t dma_map_resource(struct device *dev,
enum dma_data_direction dir,
unsigned long attrs)
{
- struct dma_map_ops *ops = get_dma_ops(dev);
+ const struct dma_map_ops *ops = get_dma_ops(dev);
dma_addr_t addr;
BUG_ON(!valid_dma_direction(dir));
@@ -300,7 +300,7 @@ static inline void dma_unmap_resource(struct device *dev, dma_addr_t addr,
size_t size, enum dma_data_direction dir,
unsigned long attrs)
{
- struct dma_map_ops *ops = get_dma_ops(dev);
+ const struct dma_map_ops *ops = get_dma_ops(dev);
BUG_ON(!valid_dma_direction(dir));
if (ops->unmap_resource)
@@ -312,7 +312,7 @@ static inline void dma_sync_single_for_cpu(struct device *dev, dma_addr_t addr,
size_t size,
enum dma_data_direction dir)
{
- struct dma_map_ops *ops = get_dma_ops(dev);
+ const struct dma_map_ops *ops = get_dma_ops(dev);
BUG_ON(!valid_dma_direction(dir));
if (ops->sync_single_for_cpu)
@@ -324,7 +324,7 @@ static inline void dma_sync_single_for_device(struct device *dev,
dma_addr_t addr, size_t size,
enum dma_data_direction dir)
{
- struct dma_map_ops *ops = get_dma_ops(dev);
+ const struct dma_map_ops *ops = get_dma_ops(dev);
BUG_ON(!valid_dma_direction(dir));
if (ops->sync_single_for_device)
@@ -364,7 +364,7 @@ static inline void
dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg,
int nelems, enum dma_data_direction dir)
{
- struct dma_map_ops *ops = get_dma_ops(dev);
+ const struct dma_map_ops *ops = get_dma_ops(dev);
BUG_ON(!valid_dma_direction(dir));
if (ops->sync_sg_for_cpu)
@@ -376,7 +376,7 @@ static inline void
dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg,
int nelems, enum dma_data_direction dir)
{
- struct dma_map_ops *ops = get_dma_ops(dev);
+ const struct dma_map_ops *ops = get_dma_ops(dev);
BUG_ON(!valid_dma_direction(dir));
if (ops->sync_sg_for_device)
@@ -421,7 +421,7 @@ static inline int
dma_mmap_attrs(struct device *dev, struct vm_area_struct *vma, void *cpu_addr,
dma_addr_t dma_addr, size_t size, unsigned long attrs)
{
- struct dma_map_ops *ops = get_dma_ops(dev);
+ const struct dma_map_ops *ops = get_dma_ops(dev);
BUG_ON(!ops);
if (ops->mmap)
return ops->mmap(dev, vma, cpu_addr, dma_addr, size, attrs);
@@ -439,7 +439,7 @@ dma_get_sgtable_attrs(struct device *dev, struct sg_table *sgt, void *cpu_addr,
dma_addr_t dma_addr, size_t size,
unsigned long attrs)
{
- struct dma_map_ops *ops = get_dma_ops(dev);
+ const struct dma_map_ops *ops = get_dma_ops(dev);
BUG_ON(!ops);
if (ops->get_sgtable)
return ops->get_sgtable(dev, sgt, cpu_addr, dma_addr, size,
@@ -457,7 +457,7 @@ static inline void *dma_alloc_attrs(struct device *dev, size_t size,
dma_addr_t *dma_handle, gfp_t flag,
unsigned long attrs)
{
- struct dma_map_ops *ops = get_dma_ops(dev);
+ const struct dma_map_ops *ops = get_dma_ops(dev);
void *cpu_addr;
BUG_ON(!ops);
@@ -479,7 +479,7 @@ static inline void dma_free_attrs(struct device *dev, size_t size,
void *cpu_addr, dma_addr_t dma_handle,
unsigned long attrs)
{
- struct dma_map_ops *ops = get_dma_ops(dev);
+ const struct dma_map_ops *ops = get_dma_ops(dev);
BUG_ON(!ops);
WARN_ON(irqs_disabled());
@@ -537,7 +537,7 @@ static inline int dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
#ifndef HAVE_ARCH_DMA_SUPPORTED
static inline int dma_supported(struct device *dev, u64 mask)
{
- struct dma_map_ops *ops = get_dma_ops(dev);
+ const struct dma_map_ops *ops = get_dma_ops(dev);
if (!ops)
return 0;
@@ -550,7 +550,7 @@ static inline int dma_supported(struct device *dev, u64 mask)
#ifndef HAVE_ARCH_DMA_SET_MASK
static inline int dma_set_mask(struct device *dev, u64 mask)
{
- struct dma_map_ops *ops = get_dma_ops(dev);
+ const struct dma_map_ops *ops = get_dma_ops(dev);
if (ops->set_dma_mask)
return ops->set_dma_mask(dev, mask);
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-13 04:37:13 +0000