From: Christoph Hellwig <hch@lst.de>
To: qemu-devel@nongnu.org
Subject: [Qemu-devel] [PATCH] virtio-blk: remove dead variable in virtio_blk_handle_scsi
Date: Wed, 13 Jan 2010 13:30:32 +0100 [thread overview]
Message-ID: <20100113123032.GA5728@lst.de> (raw)
As pointed out by clang size is only ever written to, but never actually
used.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Index: qemu/hw/virtio-blk.c
===================================================================
--- qemu.orig/hw/virtio-blk.c 2010-01-13 13:25:00.911004071 +0100
+++ qemu/hw/virtio-blk.c 2010-01-13 13:25:17.014006323 +0100
@@ -165,7 +165,7 @@ static VirtIOBlockReq *virtio_blk_get_re
static void virtio_blk_handle_scsi(VirtIOBlockReq *req)
{
struct sg_io_hdr hdr;
- int ret, size = 0;
+ int ret;
int status;
int i;
@@ -194,7 +194,6 @@ static void virtio_blk_handle_scsi(VirtI
* before the regular inhdr.
*/
req->scsi = (void *)req->elem.in_sg[req->elem.in_num - 2].iov_base;
- size = sizeof(*req->in) + sizeof(*req->scsi);
memset(&hdr, 0, sizeof(struct sg_io_hdr));
hdr.interface_id = 'S';
@@ -226,7 +225,6 @@ static void virtio_blk_handle_scsi(VirtI
hdr.dxfer_len += req->elem.in_sg[i].iov_len;
hdr.dxferp = req->elem.in_sg;
- size += hdr.dxfer_len;
} else {
/*
* Some SCSI commands don't actually transfer any data.
@@ -236,7 +234,6 @@ static void virtio_blk_handle_scsi(VirtI
hdr.sbp = req->elem.in_sg[req->elem.in_num - 3].iov_base;
hdr.mx_sb_len = req->elem.in_sg[req->elem.in_num - 3].iov_len;
- size += hdr.mx_sb_len;
ret = bdrv_ioctl(req->dev->bs, SG_IO, &hdr);
if (ret) {
next reply other threads:[~2010-01-13 12:30 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-01-13 12:30 Christoph Hellwig [this message]
2010-01-13 23:27 ` [Qemu-devel] [PATCH] virtio-blk: remove dead variable in virtio_blk_handle_scsi Anthony Liguori
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