The patch titled
Subject: drivers/dma/dmatest.c: use offset_in_page() macro
has been added to the -mm tree. Its filename is
dmaengine-dmatest-use-offset_in_page-macro.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/dmaengine-dmatest-use-offset_in_page-macro.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/dmaengine-dmatest-use-offset_in_page-macro.patch
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------------------------------------------------------
From: Geliang Tang <geliangtang@xxxxxxxxx>
Subject: drivers/dma/dmatest.c: use offset_in_page() macro
Use offset_in_page() macro instead of open-coding.
Link: http://lkml.kernel.org/r/5b8a96f45462de15e1713b8022b0e72d4f2231f6.1492757182.git.geliangtang@xxxxxxxxx
Signed-off-by: Geliang Tang <geliangtang@xxxxxxxxx>
Cc: Dan Williams <dan.j.williams@xxxxxxxxx>
Cc: Vinod Koul <vinod.koul@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/dma/dmatest.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff -puN drivers/dma/dmatest.c~dmaengine-dmatest-use-offset_in_page-macro drivers/dma/dmatest.c
--- a/drivers/dma/dmatest.c~dmaengine-dmatest-use-offset_in_page-macro
+++ a/drivers/dma/dmatest.c
@@ -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);
_
Patches currently in -mm which might be from geliangtang@xxxxxxxxx are
fs-ocfs2-cluster-use-setup_timer.patch
fs-ocfs2-cluster-use-offset_in_page-macro.patch
writeback-use-setup_deferrable_timer.patch
dmaengine-dmatest-use-offset_in_page-macro.patch
dmaengine-mv_xor-use-offset_in_page-macro.patch
dma-debug-use-offset_in_page-macro.patch
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