dma-mapping: use offset_in_page macro
Use offset_in_page macro instead of (addr & ~PAGE_MASK). Signed-off-by: Geliang Tang <geliangtang@163.com> Acked-by: Will Deacon <will.deacon@arm.com> Cc: Christian Borntraeger <borntraeger@de.ibm.com> Cc: Joerg Roedel <jroedel@suse.de> Cc: Sebastian Ott <sebott@linux.vnet.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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@ -129,10 +129,10 @@ static inline dma_addr_t dma_map_single_attrs(struct device *dev, void *ptr,
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kmemcheck_mark_initialized(ptr, size);
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kmemcheck_mark_initialized(ptr, size);
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BUG_ON(!valid_dma_direction(dir));
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BUG_ON(!valid_dma_direction(dir));
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addr = ops->map_page(dev, virt_to_page(ptr),
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addr = ops->map_page(dev, virt_to_page(ptr),
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(unsigned long)ptr & ~PAGE_MASK, size,
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offset_in_page(ptr), size,
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dir, attrs);
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dir, attrs);
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debug_dma_map_page(dev, virt_to_page(ptr),
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debug_dma_map_page(dev, virt_to_page(ptr),
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(unsigned long)ptr & ~PAGE_MASK, size,
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offset_in_page(ptr), size,
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dir, addr, true);
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dir, addr, true);
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return addr;
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return addr;
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}
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}
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