ARM: dma-mapping: Small logical clean up
Skip unnecessary operations if order == 0. A little bit easier to read. Signed-off-by: Hiroshi Doyu <hdoyu@nvidia.com> Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
This commit is contained in:
parent
bdd43cb39f
commit
5a796eeb7b
|
@ -1012,11 +1012,12 @@ static struct page **__iommu_alloc_buffer(struct device *dev, size_t size, gfp_t
|
||||||
if (!pages[i])
|
if (!pages[i])
|
||||||
goto error;
|
goto error;
|
||||||
|
|
||||||
if (order)
|
if (order) {
|
||||||
split_page(pages[i], order);
|
split_page(pages[i], order);
|
||||||
j = 1 << order;
|
j = 1 << order;
|
||||||
while (--j)
|
while (--j)
|
||||||
pages[i + j] = pages[i] + j;
|
pages[i + j] = pages[i] + j;
|
||||||
|
}
|
||||||
|
|
||||||
__dma_clear_buffer(pages[i], PAGE_SIZE << order);
|
__dma_clear_buffer(pages[i], PAGE_SIZE << order);
|
||||||
i += 1 << order;
|
i += 1 << order;
|
||||||
|
|
Loading…
Reference in New Issue