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Subject[PATCH 4/4] arm: remove wrappers for the generic dma remap helpers
Date
Remove a few tiny wrappers around the generic dma remap code.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
arch/arm/mm/dma-mapping.c | 32 +++++---------------------------
1 file changed, 5 insertions(+), 27 deletions(-)

diff --git a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c
index d07e5c865557..8cb57f1664b2 100644
--- a/arch/arm/mm/dma-mapping.c
+++ b/arch/arm/mm/dma-mapping.c
@@ -336,18 +336,6 @@ static void *__alloc_remap_buffer(struct device *dev, size_t size, gfp_t gfp,
pgprot_t prot, struct page **ret_page,
const void *caller, bool want_vaddr);

-static void *
-__dma_alloc_remap(struct page *page, size_t size, gfp_t gfp, pgprot_t prot,
- const void *caller)
-{
- return dma_common_contiguous_remap(page, size, prot, caller);
-}
-
-static void __dma_free_remap(void *cpu_addr, size_t size)
-{
- dma_common_free_remap(cpu_addr, size);
-}
-
#define DEFAULT_DMA_COHERENT_POOL_SIZE SZ_256K
static struct gen_pool *atomic_pool __ro_after_init;

@@ -503,7 +491,7 @@ static void *__alloc_remap_buffer(struct device *dev, size_t size, gfp_t gfp,
if (!want_vaddr)
goto out;

- ptr = __dma_alloc_remap(page, size, gfp, prot, caller);
+ ptr = dma_common_contiguous_remap(page, size, prot, caller);
if (!ptr) {
__dma_free_buffer(page, size);
return NULL;
@@ -570,7 +558,7 @@ static void *__alloc_from_contiguous(struct device *dev, size_t size,
goto out;

if (PageHighMem(page)) {
- ptr = __dma_alloc_remap(page, size, GFP_KERNEL, prot, caller);
+ ptr = dma_common_contiguous_remap(page, size, prot, caller);
if (!ptr) {
dma_release_from_contiguous(dev, page, count);
return NULL;
@@ -590,7 +578,7 @@ static void __free_from_contiguous(struct device *dev, struct page *page,
{
if (want_vaddr) {
if (PageHighMem(page))
- __dma_free_remap(cpu_addr, size);
+ dma_common_free_remap(cpu_addr, size);
else
__dma_remap(page, size, PAGE_KERNEL);
}
@@ -682,7 +670,7 @@ static void *remap_allocator_alloc(struct arm_dma_alloc_args *args,
static void remap_allocator_free(struct arm_dma_free_args *args)
{
if (args->want_vaddr)
- __dma_free_remap(args->cpu_addr, args->size);
+ dma_common_free_remap(args->cpu_addr, args->size);

__dma_free_buffer(args->page, args->size);
}
@@ -1365,16 +1353,6 @@ static int __iommu_free_buffer(struct device *dev, struct page **pages,
return 0;
}

-/*
- * Create a CPU mapping for a specified pages
- */
-static void *
-__iommu_alloc_remap(struct page **pages, size_t size, gfp_t gfp, pgprot_t prot,
- const void *caller)
-{
- return dma_common_pages_remap(pages, size, prot, caller);
-}
-
/*
* Create a mapping in device IO address space for specified pages
*/
@@ -1526,7 +1504,7 @@ static void *__arm_iommu_alloc_attrs(struct device *dev, size_t size,
if (attrs & DMA_ATTR_NO_KERNEL_MAPPING)
return pages;

- addr = __iommu_alloc_remap(pages, size, gfp, prot,
+ addr = dma_common_pages_remap(pages, size, prot,
__builtin_return_address(0));
if (!addr)
goto err_mapping;
--
2.20.1
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