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dmaengine: dmatest: use offset_in_page() macro 

Use offset_in_page() macro instead of open-coding.

Signed-off-by: Geliang Tang <geliangtang@gmail.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
This commit is contained in:
Geliang Tang 2017-04-22 09:18:03 +08:00 committed by Vinod Koul
parent 57192245bc
commit f62e5f613e
1 changed files with 2 additions and 2 deletions
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4
drivers/dma/dmatest.c
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@ -585,7 +585,7 @@ static int dmatest_func(void *data)
for (i = 0; i < src_cnt; i++) {
void *buf = thread->srcs[i];
struct page *pg = virt_to_page(buf);
unsigned pg_off = (unsigned long) buf & ~PAGE_MASK;
unsigned long pg_off = offset_in_page(buf);
um->addr[i] = dma_map_page(dev->dev, pg, pg_off,
um->len, DMA_TO_DEVICE);
@ -605,7 +605,7 @@ static int dmatest_func(void *data)
for (i = 0; i < dst_cnt; i++) {
void *buf = thread->dsts[i];
struct page *pg = virt_to_page(buf);
unsigned pg_off = (unsigned long) buf & ~PAGE_MASK;
unsigned long pg_off = offset_in_page(buf);
dsts[i] = dma_map_page(dev->dev, pg, pg_off, um->len,
DMA_BIDIRECTIONAL);