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dma-mapping: remove dmam_free_noncoherent 

This function was never used since it was added.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Tejun Heo <tj@kernel.org>
This commit is contained in:
Christoph Hellwig 2017-06-12 19:05:09 +02:00
parent 72eed06376
commit 03b643866d
3 changed files with 0 additions and 23 deletions
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1
Documentation/driver-model/devres.txt
View File

@ -243,7 +243,6 @@ DMA
dmam_alloc_noncoherent()
dmam_declare_coherent_memory()
dmam_free_coherent()
dmam_free_noncoherent()
dmam_pool_create()
dmam_pool_destroy()

20
drivers/base/dma-mapping.c
View File

@ -148,26 +148,6 @@ void *dmam_alloc_noncoherent(struct device *dev, size_t size,
}
EXPORT_SYMBOL(dmam_alloc_noncoherent);
/**
* dmam_free_coherent - Managed dma_free_noncoherent()
* @dev: Device to free noncoherent memory for
* @size: Size of allocation
* @vaddr: Virtual address of the memory to free
* @dma_handle: DMA handle of the memory to free
*
* Managed dma_free_noncoherent().
*/
void dmam_free_noncoherent(struct device *dev, size_t size, void *vaddr,
dma_addr_t dma_handle)
{
struct dma_devres match_data = { size, vaddr, dma_handle };
dma_free_noncoherent(dev, size, vaddr, dma_handle);
WARN_ON(!devres_destroy(dev, dmam_noncoherent_release, dmam_match,
&match_data));
}
EXPORT_SYMBOL(dmam_free_noncoherent);
#ifdef CONFIG_HAVE_GENERIC_DMA_COHERENT
static void dmam_coherent_decl_release(struct device *dev, void *res)

2
include/linux/dma-mapping.h
View File

@ -736,8 +736,6 @@ extern void dmam_free_coherent(struct device *dev, size_t size, void *vaddr,
dma_addr_t dma_handle);
extern void *dmam_alloc_noncoherent(struct device *dev, size_t size,
dma_addr_t *dma_handle, gfp_t gfp);
extern void dmam_free_noncoherent(struct device *dev, size_t size, void *vaddr,
dma_addr_t dma_handle);
#ifdef CONFIG_HAVE_GENERIC_DMA_COHERENT
extern int dmam_declare_coherent_memory(struct device *dev,
phys_addr_t phys_addr,