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ARM: 8548/1: dma-mapping: remove arm_dma_set_mask() 

arm_dma_set_mask() implements exactly the same behavior as the fallback
that dma_set_mask() takes if the set_dma_mask op is not set. Remove it
and use that fallback instead like what is already done for
dma_get_mask().

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Alexandre Courbot 2016-03-07 03:35:56 +01:00 committed by Russell King
parent 903589ca71
commit b67dd2e9bd
2 changed files with 0 additions and 18 deletions
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2
arch/arm/include/asm/dma-mapping.h
View File

@ -162,8 +162,6 @@ static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
static inline void dma_mark_clean(void *addr, size_t size) { }
extern int arm_dma_set_mask(struct device *dev, u64 dma_mask);
/**
* arm_dma_alloc - allocate consistent memory for DMA
* @dev: valid struct device pointer, or NULL for ISA and EISA-like devices

16
arch/arm/mm/dma-mapping.c
View File

@ -190,7 +190,6 @@ struct dma_map_ops arm_dma_ops = {
.sync_single_for_device = arm_dma_sync_single_for_device,
.sync_sg_for_cpu = arm_dma_sync_sg_for_cpu,
.sync_sg_for_device = arm_dma_sync_sg_for_device,
.set_dma_mask = arm_dma_set_mask,
};
EXPORT_SYMBOL(arm_dma_ops);
@ -209,7 +208,6 @@ struct dma_map_ops arm_coherent_dma_ops = {
.get_sgtable = arm_dma_get_sgtable,
.map_page = arm_coherent_dma_map_page,
.map_sg = arm_dma_map_sg,
.set_dma_mask = arm_dma_set_mask,
};
EXPORT_SYMBOL(arm_coherent_dma_ops);
@ -1142,16 +1140,6 @@ int dma_supported(struct device *dev, u64 mask)
}
EXPORT_SYMBOL(dma_supported);
int arm_dma_set_mask(struct device *dev, u64 dma_mask)
{
if (!dev->dma_mask || !dma_supported(dev, dma_mask))
return -EIO;
*dev->dma_mask = dma_mask;
return 0;
}
#define PREALLOC_DMA_DEBUG_ENTRIES 4096
static int __init dma_debug_do_init(void)
@ -2005,8 +1993,6 @@ struct dma_map_ops iommu_ops = {
.unmap_sg = arm_iommu_unmap_sg,
.sync_sg_for_cpu = arm_iommu_sync_sg_for_cpu,
.sync_sg_for_device = arm_iommu_sync_sg_for_device,
.set_dma_mask = arm_dma_set_mask,
};
struct dma_map_ops iommu_coherent_ops = {
@ -2020,8 +2006,6 @@ struct dma_map_ops iommu_coherent_ops = {
.map_sg = arm_coherent_iommu_map_sg,
.unmap_sg = arm_coherent_iommu_unmap_sg,
.set_dma_mask = arm_dma_set_mask,
};
/**