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Commit 874d6a95 authored by FUJITA Tomonori's avatar FUJITA Tomonori Committed by Ingo Molnar
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swiotlb: clean up EXPORT_SYMBOL usage 



Impact: cleanup

swiotlb uses EXPORT_SYMBOL in an inconsistent way. Some functions use
EXPORT_SYMBOL at the end of functions. Some use it at the end of
swiotlb.c.

This cleans up swiotlb to use EXPORT_SYMBOL in a consistent way (at
the end of functions).

Signed-off-by: default avatarFUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
parent ac86ccc6

lib/swiotlb.c

+14 −14
Original line number Diff line number Diff line
@@ -593,6 +593,7 @@ swiotlb_alloc_coherent(struct device *hwdev, size_t size, 
	*dma_handle = dev_addr;

	return ret;

}

EXPORT_SYMBOL(swiotlb_alloc_coherent);



void

swiotlb_free_coherent(struct device *hwdev, size_t size, void *vaddr,
@@ -605,6 +606,7 @@ swiotlb_free_coherent(struct device *hwdev, size_t size, void *vaddr, 
		/* DMA_TO_DEVICE to avoid memcpy in unmap_single */

		unmap_single(hwdev, vaddr, size, DMA_TO_DEVICE);

}

EXPORT_SYMBOL(swiotlb_free_coherent);



static void

swiotlb_full(struct device *dev, size_t size, int dir, int do_panic)
@@ -677,6 +679,7 @@ swiotlb_map_single(struct device *hwdev, void *ptr, size_t size, int dir) 
{

	return swiotlb_map_single_attrs(hwdev, ptr, size, dir, NULL);

}

EXPORT_SYMBOL(swiotlb_map_single);



/*

 * Unmap a single streaming mode DMA translation.  The dma_addr and size must
@@ -706,6 +709,8 @@ swiotlb_unmap_single(struct device *hwdev, dma_addr_t dev_addr, size_t size, 
{

	return swiotlb_unmap_single_attrs(hwdev, dev_addr, size, dir, NULL);

}

EXPORT_SYMBOL(swiotlb_unmap_single);



/*

 * Make physical memory consistent for a single streaming mode DMA translation

 * after a transfer.
@@ -735,6 +740,7 @@ swiotlb_sync_single_for_cpu(struct device *hwdev, dma_addr_t dev_addr, 
{

	swiotlb_sync_single(hwdev, dev_addr, size, dir, SYNC_FOR_CPU);

}

EXPORT_SYMBOL(swiotlb_sync_single_for_cpu);



void

swiotlb_sync_single_for_device(struct device *hwdev, dma_addr_t dev_addr,
@@ -742,6 +748,7 @@ swiotlb_sync_single_for_device(struct device *hwdev, dma_addr_t dev_addr, 
{

	swiotlb_sync_single(hwdev, dev_addr, size, dir, SYNC_FOR_DEVICE);

}

EXPORT_SYMBOL(swiotlb_sync_single_for_device);



/*

 * Same as above, but for a sub-range of the mapping.
@@ -767,6 +774,7 @@ swiotlb_sync_single_range_for_cpu(struct device *hwdev, dma_addr_t dev_addr, 
	swiotlb_sync_single_range(hwdev, dev_addr, offset, size, dir,

				  SYNC_FOR_CPU);

}

EXPORT_SYMBOL_GPL(swiotlb_sync_single_range_for_cpu);



void

swiotlb_sync_single_range_for_device(struct device *hwdev, dma_addr_t dev_addr,
@@ -775,6 +783,7 @@ swiotlb_sync_single_range_for_device(struct device *hwdev, dma_addr_t dev_addr, 
	swiotlb_sync_single_range(hwdev, dev_addr, offset, size, dir,

				  SYNC_FOR_DEVICE);

}

EXPORT_SYMBOL_GPL(swiotlb_sync_single_range_for_device);



/*

 * Map a set of buffers described by scatterlist in streaming mode for DMA.
@@ -833,6 +842,7 @@ swiotlb_map_sg(struct device *hwdev, struct scatterlist *sgl, int nelems, 
{

	return swiotlb_map_sg_attrs(hwdev, sgl, nelems, dir, NULL);

}

EXPORT_SYMBOL(swiotlb_map_sg);



/*

 * Unmap a set of streaming mode DMA translations.  Again, cpu read rules
@@ -863,6 +873,7 @@ swiotlb_unmap_sg(struct device *hwdev, struct scatterlist *sgl, int nelems, 
{

	return swiotlb_unmap_sg_attrs(hwdev, sgl, nelems, dir, NULL);

}

EXPORT_SYMBOL(swiotlb_unmap_sg);



/*

 * Make physical memory consistent for a set of streaming mode DMA translations
@@ -895,6 +906,7 @@ swiotlb_sync_sg_for_cpu(struct device *hwdev, struct scatterlist *sg, 
{

	swiotlb_sync_sg(hwdev, sg, nelems, dir, SYNC_FOR_CPU);

}

EXPORT_SYMBOL(swiotlb_sync_sg_for_cpu);



void

swiotlb_sync_sg_for_device(struct device *hwdev, struct scatterlist *sg,
@@ -902,12 +914,14 @@ swiotlb_sync_sg_for_device(struct device *hwdev, struct scatterlist *sg, 
{

	swiotlb_sync_sg(hwdev, sg, nelems, dir, SYNC_FOR_DEVICE);

}

EXPORT_SYMBOL(swiotlb_sync_sg_for_device);



int

swiotlb_dma_mapping_error(struct device *hwdev, dma_addr_t dma_addr)

{

	return (dma_addr == swiotlb_virt_to_bus(hwdev, io_tlb_overflow_buffer));

}

EXPORT_SYMBOL(swiotlb_dma_mapping_error);



/*

 * Return whether the given device DMA address mask can be supported
@@ -920,18 +934,4 @@ swiotlb_dma_supported(struct device *hwdev, u64 mask) 
{

	return swiotlb_virt_to_bus(hwdev, io_tlb_end - 1) <= mask;

}



EXPORT_SYMBOL(swiotlb_map_single);

EXPORT_SYMBOL(swiotlb_unmap_single);

EXPORT_SYMBOL(swiotlb_map_sg);

EXPORT_SYMBOL(swiotlb_unmap_sg);

EXPORT_SYMBOL(swiotlb_sync_single_for_cpu);

EXPORT_SYMBOL(swiotlb_sync_single_for_device);

EXPORT_SYMBOL_GPL(swiotlb_sync_single_range_for_cpu);

EXPORT_SYMBOL_GPL(swiotlb_sync_single_range_for_device);

EXPORT_SYMBOL(swiotlb_sync_sg_for_cpu);

EXPORT_SYMBOL(swiotlb_sync_sg_for_device);

EXPORT_SYMBOL(swiotlb_dma_mapping_error);

EXPORT_SYMBOL(swiotlb_alloc_coherent);

EXPORT_SYMBOL(swiotlb_free_coherent);

EXPORT_SYMBOL(swiotlb_dma_supported);