[PATCH v2 2/9] qemu: Move drive alias processing to qemu_alias

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Move qemuDeviceDriveHostAlias from qemu_command and rename to
qemuAssignDeviceDiskDriveAlias in qemu_alias.  Also change the parameter
to just be the disk->info.alias (e.g. srcalias)

Includes some innocent bystanders that seem to need QEMU_DRIVE_HOST_PREFIX
which requires include qemu_alias.h instead of qemu_command.h

Signed-off-by: John Ferlan <jferlan@xxxxxxxxxx>
---
 src/qemu/qemu_alias.c        | 17 +++++++++++++++++
 src/qemu/qemu_alias.h        |  4 ++++
 src/qemu/qemu_command.c      | 11 -----------
 src/qemu/qemu_command.h      |  1 -
 src/qemu/qemu_hotplug.c      |  4 ++--
 src/qemu/qemu_migration.c    |  2 +-
 src/qemu/qemu_monitor_json.c |  2 +-
 src/qemu/qemu_monitor_text.c |  2 +-
 8 files changed, 26 insertions(+), 17 deletions(-)

diff --git a/src/qemu/qemu_alias.c b/src/qemu/qemu_alias.c
index 51a654a..70cd9f1 100644
--- a/src/qemu/qemu_alias.c
+++ b/src/qemu/qemu_alias.c
@@ -170,6 +170,23 @@ qemuAssignDeviceControllerAlias(virDomainDefPtr domainDef,
     return virAsprintf(&controller->info.alias, "%s%d", prefix, controller->idx);
 }
 
+/* qemuAssignDeviceDiskDriveAlias:
+ * @srcalias: Disk source alias
+ *
+ * Generate and return an alias for the device disk '-drive'
+ *
+ * Returns NULL or a string containing the alias
+ */
+char *
+qemuAssignDeviceDiskDriveAlias(const char *srcalias)
+{
+    char *ret;
+
+    if (virAsprintf(&ret, "%s%s", QEMU_DRIVE_HOST_PREFIX, srcalias) < 0)
+        return NULL;
+    return ret;
+}
+
 
 /* Our custom -drive naming scheme used with id= */
 int
diff --git a/src/qemu/qemu_alias.h b/src/qemu/qemu_alias.h
index d1c6ba8..db4b690 100644
--- a/src/qemu/qemu_alias.h
+++ b/src/qemu/qemu_alias.h
@@ -30,6 +30,8 @@
 # include "qemu_domain.h"
 # include "qemu_domain_address.h"
 
+# define QEMU_DRIVE_HOST_PREFIX "drive-"
+
 int qemuAssignDeviceChrAlias(virDomainDefPtr def,
                              virDomainChrDefPtr chr,
                              ssize_t idx);
@@ -38,6 +40,8 @@ int qemuAssignDeviceControllerAlias(virDomainDefPtr domainDef,
                                     virQEMUCapsPtr qemuCaps,
                                     virDomainControllerDefPtr controller);
 
+char *qemuAssignDeviceDiskDriveAlias(const char *srcalias);
+
 int qemuAssignDeviceDiskAlias(virDomainDefPtr vmdef,
                               virDomainDiskDefPtr def,
                               virQEMUCapsPtr qemuCaps);
diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c
index 4558b9f..affd0b0 100644
--- a/src/qemu/qemu_command.c
+++ b/src/qemu/qemu_command.c
@@ -272,17 +272,6 @@ qemuVirCommandGetDevSet(virCommandPtr cmd, int fd)
 }
 
 
-char *qemuDeviceDriveHostAlias(virDomainDiskDefPtr disk)
-{
-    char *ret;
-
-    if (virAsprintf(&ret, "%s%s",
-                    QEMU_DRIVE_HOST_PREFIX, disk->info.alias) < 0)
-        return NULL;
-    return ret;
-}
-
-
 static int
 qemuBuildDeviceAddressStr(virBufferPtr buf,
                           const virDomainDef *domainDef,
diff --git a/src/qemu/qemu_command.h b/src/qemu/qemu_command.h
index c4d0567..dcf9ba6 100644
--- a/src/qemu/qemu_command.h
+++ b/src/qemu/qemu_command.h
@@ -37,7 +37,6 @@
 /* Config type for XML import/export conversions */
 # define QEMU_CONFIG_FORMAT_ARGV "qemu-argv"
 
-# define QEMU_DRIVE_HOST_PREFIX "drive-"
 # define QEMU_FSDEV_HOST_PREFIX "fsdev-"
 
 # define QEMU_BLOCK_IOTUNE_MAX 1000000000000000LL
diff --git a/src/qemu/qemu_hotplug.c b/src/qemu/qemu_hotplug.c
index 6364d68..4f521a4 100644
--- a/src/qemu/qemu_hotplug.c
+++ b/src/qemu/qemu_hotplug.c
@@ -229,7 +229,7 @@ qemuDomainChangeEjectableMedia(virQEMUDriverPtr driver,
     if (qemuDomainPrepareDisk(driver, vm, disk, newsrc, false) < 0)
         goto cleanup;
 
-    if (!(driveAlias = qemuDeviceDriveHostAlias(disk)))
+    if (!(driveAlias = qemuAssignDeviceDiskDriveAlias(disk->info.alias)))
         goto error;
 
     qemuDomainObjEnterMonitor(driver, vm);
@@ -365,7 +365,7 @@ qemuDomainAttachVirtioDiskDevice(virConnectPtr conn,
     if (!(drivestr = qemuBuildDriveStr(disk, false, priv->qemuCaps)))
         goto error;
 
-    if (!(drivealias = qemuDeviceDriveHostAlias(disk)))
+    if (!(drivealias = qemuAssignDeviceDiskDriveAlias(disk->info.alias)))
         goto error;
 
     if (!(devstr = qemuBuildDriveDevStr(vm->def, disk, 0, priv->qemuCaps)))
diff --git a/src/qemu/qemu_migration.c b/src/qemu/qemu_migration.c
index 463e624..04c847e 100644
--- a/src/qemu/qemu_migration.c
+++ b/src/qemu/qemu_migration.c
@@ -36,7 +36,7 @@
 #include "qemu_domain.h"
 #include "qemu_process.h"
 #include "qemu_capabilities.h"
-#include "qemu_command.h"
+#include "qemu_alias.h"
 #include "qemu_cgroup.h"
 #include "qemu_hotplug.h"
 #include "qemu_blockjob.h"
diff --git a/src/qemu/qemu_monitor_json.c b/src/qemu/qemu_monitor_json.c
index bb426dc..a54ff8d 100644
--- a/src/qemu/qemu_monitor_json.c
+++ b/src/qemu/qemu_monitor_json.c
@@ -33,7 +33,7 @@
 
 #include "qemu_monitor_text.h"
 #include "qemu_monitor_json.h"
-#include "qemu_command.h"
+#include "qemu_alias.h"
 #include "qemu_parse_command.h"
 #include "qemu_capabilities.h"
 #include "viralloc.h"
diff --git a/src/qemu/qemu_monitor_text.c b/src/qemu/qemu_monitor_text.c
index 9295219..6c458e2 100644
--- a/src/qemu/qemu_monitor_text.c
+++ b/src/qemu/qemu_monitor_text.c
@@ -31,7 +31,7 @@
 #include <string.h>
 
 #include "qemu_monitor_text.h"
-#include "qemu_command.h"
+#include "qemu_alias.h"
 #include "c-ctype.h"
 #include "c-strcasestr.h"
 #include "viralloc.h"
-- 
2.5.5

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