[Xen-devel] [PATCH] xen/scsifront: use offset_in_page() macro

[Geliang Tang <geliangtang@xxxxxxxxx>]

Use offset_in_page() macro instead of open-coding.

Signed-off-by: Geliang Tang <geliangtang@xxxxxxxxx>
---
 drivers/scsi/xen-scsifront.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/scsi/xen-scsifront.c b/drivers/scsi/xen-scsifront.c
index 9aa1fe1..a6a8b60 100644
--- a/drivers/scsi/xen-scsifront.c
+++ b/drivers/scsi/xen-scsifront.c
@@ -434,7 +434,7 @@ static int map_data_for_request(struct vscsifrnt_info *info,
 
        if (seg_grants) {
                page = virt_to_page(seg);
-               off = (unsigned long)seg & ~PAGE_MASK;
+               off = offset_in_page(seg);
                len = sizeof(struct scsiif_request_segment) * data_grants;
                while (len > 0) {
                        bytes = min_t(unsigned int, len, PAGE_SIZE - off);
-- 
2.9.3


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