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From 4e32b3e8ab394aaf1f94b1166d7c5e38cec8ede4 Mon Sep 17 00:00:00 2001
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Message-Id: <4e32b3e8ab394aaf1f94b1166d7c5e38cec8ede4@dist-git>
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From: =?UTF-8?q?J=C3=A1n=20Tomko?= <jtomko@redhat.com>
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Date: Fri, 9 Jun 2017 12:48:53 +0200
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Subject: [PATCH] Use a separate buffer for <controller><driver>
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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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Make adding new attributes easier.
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(cherry picked from commit 5e5fc766257b05979c37593434d28cc9eb7e0cf0)
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Signed-off-by: Ján Tomko <jtomko@redhat.com>
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https://bugzilla.redhat.com/show_bug.cgi?id=1283251
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Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
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---
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 src/conf/domain_conf.c | 39 ++++++++++++++++++++-------------------
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 1 file changed, 20 insertions(+), 19 deletions(-)
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diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c
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index d5c5a7030b..242a79a7e7 100644
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--- a/src/conf/domain_conf.c
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+++ b/src/conf/domain_conf.c
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@@ -21332,6 +21332,7 @@ virDomainControllerDefFormat(virBufferPtr buf,
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     const char *model = NULL;
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     const char *modelName = NULL;
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     bool pcihole64 = false, pciModel = false, pciTarget = false;
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+    virBuffer driverBuf = VIR_BUFFER_INITIALIZER;
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     if (!type) {
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         virReportError(VIR_ERR_INTERNAL_ERROR,
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@@ -21436,26 +21437,26 @@ virDomainControllerDefFormat(virBufferPtr buf,
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             }
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         }
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-        if (def->queues || def->cmd_per_lun ||
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-            def->max_sectors || def->ioeventfd || def->iothread) {
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+        if (def->queues)
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+            virBufferAsprintf(&driverBuf, " queues='%u'", def->queues);
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+
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+        if (def->cmd_per_lun)
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+            virBufferAsprintf(&driverBuf, " cmd_per_lun='%u'", def->cmd_per_lun);
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+
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+        if (def->max_sectors)
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+            virBufferAsprintf(&driverBuf, " max_sectors='%u'", def->max_sectors);
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+
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+        if (def->ioeventfd) {
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+            virBufferAsprintf(&driverBuf, " ioeventfd='%s'",
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+                              virTristateSwitchTypeToString(def->ioeventfd));
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+        }
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+
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+        if (def->iothread)
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+            virBufferAsprintf(&driverBuf, " iothread='%u'", def->iothread);
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+
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+        if (virBufferUse(&driverBuf)) {
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             virBufferAddLit(buf, "
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-            if (def->queues)
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-                virBufferAsprintf(buf, " queues='%u'", def->queues);
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-
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-            if (def->cmd_per_lun)
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-                virBufferAsprintf(buf, " cmd_per_lun='%u'", def->cmd_per_lun);
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-
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-            if (def->max_sectors)
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-                virBufferAsprintf(buf, " max_sectors='%u'", def->max_sectors);
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-
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-            if (def->ioeventfd) {
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-                virBufferAsprintf(buf, " ioeventfd='%s'",
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-                                  virTristateSwitchTypeToString(def->ioeventfd));
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-            }
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-
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-            if (def->iothread)
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-                virBufferAsprintf(buf, " iothread='%u'", def->iothread);
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-
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+            virBufferAddBuffer(buf, &driverBuf);
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             virBufferAddLit(buf, "/>\n");
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         }
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-- 
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2.13.1
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