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[ARM] dma: provide a better dma_map_page() implementation
authorRussell King <rmk@dyn-67.arm.linux.org.uk>
Thu, 25 Sep 2008 19:59:12 +0000 (20:59 +0100)
committerRussell King <rmk+kernel@arm.linux.org.uk>
Thu, 25 Sep 2008 22:39:24 +0000 (23:39 +0100)
We can translate a struct page directly to a DMA address using
page_to_dma().  No need to use page_address() followed by
virt_to_dma().

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

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