From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1042994AbdDVBWj (ORCPT ); Fri, 21 Apr 2017 21:22:39 -0400 Received: from mail-it0-f65.google.com ([209.85.214.65]:35423 "EHLO mail-it0-f65.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1427308AbdDVBWb (ORCPT ); Fri, 21 Apr 2017 21:22:31 -0400 From: Geliang Tang To: Juergen Gross , Boris Ostrovsky , "James E.J. Bottomley" , "Martin K. Petersen" Cc: Geliang Tang , xen-devel@lists.xenproject.org, linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH] xen/scsifront: use offset_in_page() macro Date: Sat, 22 Apr 2017 09:21:13 +0800 Message-Id: X-Mailer: git-send-email 2.9.3 In-Reply-To: <4dbc77ccaaed98b183cf4dba58a4fa325fd65048.1492758503.git.geliangtang@gmail.com> References: <4dbc77ccaaed98b183cf4dba58a4fa325fd65048.1492758503.git.geliangtang@gmail.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Use offset_in_page() macro instead of open-coding. Signed-off-by: Geliang Tang --- 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