linux-kernel - [PATCH] drivers, block: virtio_blk: Replace cryptic number with the macro

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Message-Id: <1303584566-11621-1-git-send-email-namei.unix@gmail.com>
Date:	Sun, 24 Apr 2011 02:49:26 +0800
From:	Liu Yuan <namei.unix@...il.com>
To:	Rusty Russell <rusty@...tcorp.com.au>,
	Jens Axboe <axboe@...nel.dk>,
	"Michael S. Tsirkin" <mst@...hat.com>
Cc:	linux-kernel@...r.kernel.org
Subject: [PATCH] drivers, block: virtio_blk: Replace cryptic number with the macro

From: Liu Yuan <tailai.ly@...bao.com>

It is easier to figure out the context by reading SCSI_SENSE_BUFFERSIZE
instead of plain '96'.

Signed-off-by: Liu Yuan <tailai.ly@...bao.com>
---
 drivers/block/virtio_blk.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/drivers/block/virtio_blk.c b/drivers/block/virtio_blk.c
index 6ecf89c..d6a426a 100644
--- a/drivers/block/virtio_blk.c
+++ b/drivers/block/virtio_blk.c
@@ -6,6 +6,7 @@
 #include <linux/virtio.h>
 #include <linux/virtio_blk.h>
 #include <linux/scatterlist.h>
+#include <scsi/scsi_cmnd.h>
 
 #define PART_BITS 4
 
@@ -141,7 +142,7 @@ static bool do_req(struct request_queue *q, struct virtio_blk *vblk,
 	num = blk_rq_map_sg(q, vbr->req, vblk->sg + out);
 
 	if (vbr->req->cmd_type == REQ_TYPE_BLOCK_PC) {
-		sg_set_buf(&vblk->sg[num + out + in++], vbr->req->sense, 96);
+		sg_set_buf(&vblk->sg[num + out + in++], vbr->req->sense, SCSI_SENSE_BUFFERSIZE);
 		sg_set_buf(&vblk->sg[num + out + in++], &vbr->in_hdr,
 			   sizeof(vbr->in_hdr));
 	}
-- 
1.7.1

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