Commit 8e99469a authored by Geliang Tang's avatar Geliang Tang Committed by Linus Torvalds

dma-mapping: use offset_in_page macro

Use offset_in_page macro instead of (addr & ~PAGE_MASK).
Signed-off-by: default avatarGeliang Tang <geliangtang@163.com>
Acked-by: default avatarWill 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: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 20d666e4
......@@ -129,10 +129,10 @@ static inline dma_addr_t dma_map_single_attrs(struct device *dev, void *ptr,
kmemcheck_mark_initialized(ptr, size);
BUG_ON(!valid_dma_direction(dir));
addr = ops->map_page(dev, virt_to_page(ptr),
(unsigned long)ptr & ~PAGE_MASK, size,
offset_in_page(ptr), size,
dir, attrs);
debug_dma_map_page(dev, virt_to_page(ptr),
(unsigned long)ptr & ~PAGE_MASK, size,
offset_in_page(ptr), size,
dir, addr, true);
return addr;
}
......
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