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

From	Geliang Tang <geliangtang@gmail.com>
Newsgroups	linux.kernel
Subject	[PATCH] xen/scsifront: use offset_in_page() macro
Date	2017-04-22 03:30 +0200
Message-ID	<tyS26-4Ml-9@gated-at.bofh.it> (permalink)
References	<tyS26-4Ml-7@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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Use offset_in_page() macro instead of open-coding.

Signed-off-by: Geliang Tang <geliangtang@gmail.com>
---
 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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[PATCH] xen/scsifront: use offset_in_page() macro Geliang Tang <geliangtang@gmail.com> - 2017-04-22 03:30 +0200
  Re: [PATCH] xen/scsifront: use offset_in_page() macro Juergen Gross <jgross@suse.com> - 2017-04-24 07:10 +0200

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