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dma-direct: remove __dma_direct_free_pages

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We can just call dma_free_contiguous directly instead of wrapping it.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Max Filippov <jcmvbkbc@gmail.com>
This commit is contained in:
Christoph Hellwig
2019-10-29 09:57:09 +01:00
parent b3d53f5fce
commit acaade1af3
3 changed files with 5 additions and 11 deletions
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11
kernel/dma/direct.c
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@@ -153,7 +153,7 @@ void *dma_direct_alloc_pages(struct device *dev, size_t size,
* so log an error and fail.
*/
dev_info(dev, "Rejecting highmem page from CMA.\n");
__dma_direct_free_pages(dev, size, page);
dma_free_contiguous(dev, page, size);
return NULL;
}
@@ -175,11 +175,6 @@ void *dma_direct_alloc_pages(struct device *dev, size_t size,
return ret;
}
void __dma_direct_free_pages(struct device *dev, size_t size, struct page *page)
{
dma_free_contiguous(dev, page, size);
}
void dma_direct_free_pages(struct device *dev, size_t size, void *cpu_addr,
dma_addr_t dma_addr, unsigned long attrs)
{
@@ -188,7 +183,7 @@ void dma_direct_free_pages(struct device *dev, size_t size, void *cpu_addr,
if ((attrs & DMA_ATTR_NO_KERNEL_MAPPING) &&
!force_dma_unencrypted(dev)) {
/* cpu_addr is a struct page cookie, not a kernel address */
__dma_direct_free_pages(dev, size, cpu_addr);
dma_free_contiguous(dev, cpu_addr, size);
return;
}
@@ -198,7 +193,7 @@ void dma_direct_free_pages(struct device *dev, size_t size, void *cpu_addr,
if (IS_ENABLED(CONFIG_ARCH_HAS_UNCACHED_SEGMENT) &&
dma_alloc_need_uncached(dev, attrs))
cpu_addr = cached_kernel_address(cpu_addr);
__dma_direct_free_pages(dev, size, virt_to_page(cpu_addr));
dma_free_contiguous(dev, virt_to_page(cpu_addr), size);
}
void *dma_direct_alloc(struct device *dev, size_t size,