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dma-mapping: Remove exposure of dma_get_[base/size]

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Now that dma_get_[base/size] are not needed by other
drivers, remove the implementation of dma_get_size(),
and limit the scope of dma_get_base() to its original
visibility.

Change-Id: I38d6024b43608743217ebfd44a35ccb4da714386
Signed-off-by: Isaac J. Manjarres <isaacm@codeaurora.org>
This commit is contained in:
Isaac J. Manjarres 2019-10-15 16:26:29 -07:00 committed by Gerrit - the friendly Code Review server
parent 6f7e72d4e8
commit afa801ec6c
2 changed files with 1 additions and 22 deletions
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16
include/linux/dma-mapping.h
View File

@ -803,31 +803,15 @@ static inline int dma_get_cache_alignment(void)
}
#ifdef CONFIG_DMA_DECLARE_COHERENT
struct dma_coherent_mem;
int dma_declare_coherent_memory(struct device *dev, phys_addr_t phys_addr,
dma_addr_t device_addr, size_t size);
dma_addr_t dma_get_device_base(struct device *dev,
struct dma_coherent_mem *mem);
unsigned long dma_get_size(struct dma_coherent_mem *mem);
#else
struct dma_coherent_mem {};
static inline int
dma_declare_coherent_memory(struct device *dev, phys_addr_t phys_addr,
dma_addr_t device_addr, size_t size)
{
return -ENOSYS;
}
static inline dma_addr_t dma_get_device_base(struct device *dev,
struct dma_coherent_mem *mem)
{
return 0;
}
static inline unsigned long dma_get_size(struct dma_coherent_mem *mem)
{
return 0;
}
#endif /* CONFIG_DMA_DECLARE_COHERENT */
static inline void *dmam_alloc_coherent(struct device *dev, size_t size,

7
kernel/dma/coherent.c
View File

@ -28,7 +28,7 @@ static inline struct dma_coherent_mem *dev_get_coherent_memory(struct device *de
return NULL;
}
dma_addr_t dma_get_device_base(struct device *dev,
static inline dma_addr_t dma_get_device_base(struct device *dev,
struct dma_coherent_mem * mem)
{
if (mem->use_dev_dma_pfn_offset)
@ -37,11 +37,6 @@ dma_addr_t dma_get_device_base(struct device *dev,
return mem->device_base;
}
unsigned long dma_get_size(struct dma_coherent_mem *mem)
{
return mem->size << PAGE_SHIFT;
}
static int dma_init_coherent_memory(phys_addr_t phys_addr,
dma_addr_t device_addr, size_t size,
struct dma_coherent_mem **mem)