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From 82e922c8be1b32eeb0c8c22165cdeff39e12d3ef Mon Sep 17 00:00:00 2001
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From: Paolo Bonzini <pbonzini@redhat.com>
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Date: Tue, 22 Aug 2017 09:42:59 +0200
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Subject: [PATCH 09/15] scsi: introduce scsi_build_sense
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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Move more knowledge of sense data format out of hw/scsi/scsi-bus.c
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for reusability.
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Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
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Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
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Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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---
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 hw/scsi/scsi-bus.c   |  8 +-------
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 include/scsi/utils.h |  2 ++
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 scsi/utils.c         | 11 +++++++++++
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 3 files changed, 14 insertions(+), 7 deletions(-)
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diff --git a/hw/scsi/scsi-bus.c b/hw/scsi/scsi-bus.c
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index 42920d5422..652ab046ab 100644
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--- a/hw/scsi/scsi-bus.c
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+++ b/hw/scsi/scsi-bus.c
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@@ -818,13 +818,7 @@ void scsi_req_build_sense(SCSIRequest *req, SCSISense sense)
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 {
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     trace_scsi_req_build_sense(req->dev->id, req->lun, req->tag,
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                                sense.key, sense.asc, sense.ascq);
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-    memset(req->sense, 0, 18);
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-    req->sense[0] = 0x70;
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-    req->sense[2] = sense.key;
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-    req->sense[7] = 10;
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-    req->sense[12] = sense.asc;
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-    req->sense[13] = sense.ascq;
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-    req->sense_len = 18;
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+    req->sense_len = scsi_build_sense(req->sense, sense);
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 }
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 static void scsi_req_enqueue_internal(SCSIRequest *req)
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diff --git a/include/scsi/utils.h b/include/scsi/utils.h
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index 90bf4dce6e..b49392d841 100644
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--- a/include/scsi/utils.h
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+++ b/include/scsi/utils.h
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@@ -30,6 +30,8 @@ typedef struct SCSISense {
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     uint8_t ascq;
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 } SCSISense;
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+int scsi_build_sense(uint8_t *buf, SCSISense sense);
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+
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 /*
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  * Predefined sense codes
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  */
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diff --git a/scsi/utils.c b/scsi/utils.c
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index 2327e06da0..89d9167d9d 100644
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--- a/scsi/utils.c
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+++ b/scsi/utils.c
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@@ -96,6 +96,17 @@ int scsi_cdb_length(uint8_t *buf)
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     return cdb_len;
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 }
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+int scsi_build_sense(uint8_t *buf, SCSISense sense)
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+{
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+    memset(buf, 0, 18);
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+    buf[0] = 0x70;
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+    buf[2] = sense.key;
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+    buf[7] = 10;
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+    buf[12] = sense.asc;
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+    buf[13] = sense.ascq;
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+    return 18;
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+}
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+
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 /*
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  * Predefined sense codes
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  */
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-- 
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2.13.5
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