From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:42205) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1cHKBi-0002Bn-6y for qemu-devel@nongnu.org; Wed, 14 Dec 2016 19:46:23 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1cHKBf-000198-3z for qemu-devel@nongnu.org; Wed, 14 Dec 2016 19:46:22 -0500 Received: from mx0a-001b2d01.pphosted.com ([148.163.156.1]:49814) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1cHKBe-00018F-Q8 for qemu-devel@nongnu.org; Wed, 14 Dec 2016 19:46:19 -0500 Received: from pps.filterd (m0098396.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.17/8.16.0.17) with SMTP id uBF0hcvn016318 for ; Wed, 14 Dec 2016 19:46:17 -0500 Received: from e34.co.us.ibm.com (e34.co.us.ibm.com [32.97.110.152]) by mx0a-001b2d01.pphosted.com with ESMTP id 27bdm514ww-1 (version=TLSv1.2 cipher=AES256-SHA bits=256 verify=NOT) for ; Wed, 14 Dec 2016 19:46:17 -0500 Received: from localhost by e34.co.us.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Wed, 14 Dec 2016 17:46:16 -0700 From: Michael Roth Date: Wed, 14 Dec 2016 18:44:12 -0600 In-Reply-To: <1481762701-4587-1-git-send-email-mdroth@linux.vnet.ibm.com> References: <1481762701-4587-1-git-send-email-mdroth@linux.vnet.ibm.com> Message-Id: <1481762701-4587-19-git-send-email-mdroth@linux.vnet.ibm.com> Subject: [Qemu-devel] [PATCH 18/67] scsi-disk: Cleaning up around tray open state List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: qemu-stable@nongnu.org, Fam Zheng , Paolo Bonzini From: Fam Zheng Even if tray is not open, it can be empty (blk_is_inserted() == false). Handle both cases correctly by replacing the s->tray_open checks with blk_is_available(), which is an AND of the two. Also simplify successive checks of them into blk_is_available(), in a couple cases. Signed-off-by: Fam Zheng Message-Id: <1473848224-24809-2-git-send-email-famz@redhat.com> Signed-off-by: Paolo Bonzini (cherry picked from commit cd723b85601baa7a0eeffbac83421357a70d81ee) Signed-off-by: Michael Roth --- hw/scsi/scsi-disk.c | 22 ++++++++-------------- 1 file changed, 8 insertions(+), 14 deletions(-) diff --git a/hw/scsi/scsi-disk.c b/hw/scsi/scsi-disk.c index 0e1bb68..f1b115c 100644 --- a/hw/scsi/scsi-disk.c +++ b/hw/scsi/scsi-disk.c @@ -396,7 +396,7 @@ static void scsi_read_data(SCSIRequest *req) return; } - if (s->tray_open) { + if (!blk_is_available(req->dev->conf.blk)) { scsi_read_complete(r, -ENOMEDIUM); return; } @@ -519,7 +519,7 @@ static void scsi_write_data(SCSIRequest *req) scsi_write_complete_noio(r, 0); return; } - if (s->tray_open) { + if (!blk_is_available(req->dev->conf.blk)) { scsi_write_complete_noio(r, -ENOMEDIUM); return; } @@ -792,10 +792,7 @@ static inline bool media_is_dvd(SCSIDiskState *s) if (s->qdev.type != TYPE_ROM) { return false; } - if (!blk_is_inserted(s->qdev.conf.blk)) { - return false; - } - if (s->tray_open) { + if (!blk_is_available(s->qdev.conf.blk)) { return false; } blk_get_geometry(s->qdev.conf.blk, &nb_sectors); @@ -808,10 +805,7 @@ static inline bool media_is_cd(SCSIDiskState *s) if (s->qdev.type != TYPE_ROM) { return false; } - if (!blk_is_inserted(s->qdev.conf.blk)) { - return false; - } - if (s->tray_open) { + if (!blk_is_available(s->qdev.conf.blk)) { return false; } blk_get_geometry(s->qdev.conf.blk, &nb_sectors); @@ -875,7 +869,7 @@ static int scsi_read_dvd_structure(SCSIDiskState *s, SCSIDiskReq *r, } if (format != 0xff) { - if (s->tray_open || !blk_is_inserted(s->qdev.conf.blk)) { + if (!blk_is_available(s->qdev.conf.blk)) { scsi_check_condition(r, SENSE_CODE(NO_MEDIUM)); return -1; } @@ -1857,7 +1851,7 @@ static int32_t scsi_disk_emulate_command(SCSIRequest *req, uint8_t *buf) break; default: - if (s->tray_open || !blk_is_inserted(s->qdev.conf.blk)) { + if (!blk_is_available(s->qdev.conf.blk)) { scsi_check_condition(r, SENSE_CODE(NO_MEDIUM)); return 0; } @@ -1886,7 +1880,7 @@ static int32_t scsi_disk_emulate_command(SCSIRequest *req, uint8_t *buf) memset(outbuf, 0, r->buflen); switch (req->cmd.buf[0]) { case TEST_UNIT_READY: - assert(!s->tray_open && blk_is_inserted(s->qdev.conf.blk)); + assert(blk_is_available(s->qdev.conf.blk)); break; case INQUIRY: buflen = scsi_disk_emulate_inquiry(req, outbuf); @@ -2126,7 +2120,7 @@ static int32_t scsi_disk_dma_command(SCSIRequest *req, uint8_t *buf) command = buf[0]; - if (s->tray_open || !blk_is_inserted(s->qdev.conf.blk)) { + if (!blk_is_available(s->qdev.conf.blk)) { scsi_check_condition(r, SENSE_CODE(NO_MEDIUM)); return 0; } -- 1.9.1