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From 08c0c0562f8444859cc110e4fc2199d2c4254a53 Mon Sep 17 00:00:00 2001
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Message-Id: <08c0c0562f8444859cc110e4fc2199d2c4254a53@dist-git>
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From: Andrea Bolognani <abologna@redhat.com>
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Date: Wed, 29 Nov 2017 16:22:54 +0100
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Subject: [PATCH] conf, qemu: Use type-aware switches where possible
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The compiler can warn us if we add a value to the
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virDomainChrSerialTargetType enumeration but forget to handle
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it properly in the code. Let's take advantage of that.
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This commit is best viewed with 'git diff -w'.
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Signed-off-by: Andrea Bolognani <abologna@redhat.com>
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Reviewed-by: Pavel Hrdina <phrdina@redhat.com>
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(cherry picked from commit 18dfc0014501c3811ee32669ea96583131dca9b3)
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https://bugzilla.redhat.com/show_bug.cgi?id=1449265
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https://bugzilla.redhat.com/show_bug.cgi?id=1511421
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https://bugzilla.redhat.com/show_bug.cgi?id=1512929
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https://bugzilla.redhat.com/show_bug.cgi?id=1512934
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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 | 47 ++++++++++++++++++++++++++++++-----------------
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src/qemu/qemu_command.c | 7 ++++++-
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2 files changed, 36 insertions(+), 18 deletions(-)
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diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c
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index 530fae9d9d..4b5e7c214f 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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@@ -4046,26 +4046,39 @@ virDomainDefAddConsoleCompat(virDomainDefPtr def)
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def->consoles[0]->targetType = VIR_DOMAIN_CHR_CONSOLE_TARGET_TYPE_SERIAL;
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}
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} else if (def->os.type == VIR_DOMAIN_OSTYPE_HVM && def->nserials > 0 &&
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- def->serials[0]->deviceType == VIR_DOMAIN_CHR_DEVICE_TYPE_SERIAL &&
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- def->serials[0]->targetType == VIR_DOMAIN_CHR_SERIAL_TARGET_TYPE_ISA) {
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- /* Create a stub console to match the serial port.
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- * console[0] either does not exist
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- * or has a different type than SERIAL or NONE.
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- */
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- virDomainChrDefPtr chr;
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- if (!(chr = virDomainChrDefNew(NULL)))
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- return -1;
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+ def->serials[0]->deviceType == VIR_DOMAIN_CHR_DEVICE_TYPE_SERIAL) {
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- if (VIR_INSERT_ELEMENT(def->consoles,
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- 0,
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- def->nconsoles,
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- chr) < 0) {
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- virDomainChrDefFree(chr);
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- return -1;
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+ switch ((virDomainChrSerialTargetType) def->serials[0]->targetType) {
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+ case VIR_DOMAIN_CHR_SERIAL_TARGET_TYPE_ISA: {
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+
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+ /* Create a stub console to match the serial port.
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+ * console[0] either does not exist
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+ * or has a different type than SERIAL or NONE.
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+ */
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+ virDomainChrDefPtr chr;
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+ if (!(chr = virDomainChrDefNew(NULL)))
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+ return -1;
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+
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+ if (VIR_INSERT_ELEMENT(def->consoles,
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+ 0,
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+ def->nconsoles,
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+ chr) < 0) {
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+ virDomainChrDefFree(chr);
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+ return -1;
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+ }
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+
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+ def->consoles[0]->deviceType = VIR_DOMAIN_CHR_DEVICE_TYPE_CONSOLE;
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+ def->consoles[0]->targetType = VIR_DOMAIN_CHR_CONSOLE_TARGET_TYPE_SERIAL;
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+
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+ break;
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}
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- def->consoles[0]->deviceType = VIR_DOMAIN_CHR_DEVICE_TYPE_CONSOLE;
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- def->consoles[0]->targetType = VIR_DOMAIN_CHR_CONSOLE_TARGET_TYPE_SERIAL;
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+ case VIR_DOMAIN_CHR_SERIAL_TARGET_TYPE_PCI:
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+ case VIR_DOMAIN_CHR_SERIAL_TARGET_TYPE_USB:
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+ case VIR_DOMAIN_CHR_SERIAL_TARGET_TYPE_LAST:
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+ /* Nothing to do */
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+ break;
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+ }
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}
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return 0;
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diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c
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index 19a819a3aa..3d970ed9d1 100644
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--- a/src/qemu/qemu_command.c
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+++ b/src/qemu/qemu_command.c
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@@ -10338,7 +10338,7 @@ qemuBuildSerialChrDeviceStr(char **deviceStr,
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serial->info.alias);
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}
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} else {
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- switch (serial->targetType) {
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+ switch ((virDomainChrSerialTargetType) serial->targetType) {
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case VIR_DOMAIN_CHR_SERIAL_TARGET_TYPE_USB:
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if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_DEVICE_USB_SERIAL)) {
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virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
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@@ -10377,6 +10377,11 @@ qemuBuildSerialChrDeviceStr(char **deviceStr,
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goto error;
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}
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break;
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+
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+ case VIR_DOMAIN_CHR_SERIAL_TARGET_TYPE_LAST:
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+ virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
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+ _("Invalid target type for serial device"));
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+ goto error;
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}
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virBufferAsprintf(&cmd, "%s,chardev=char%s,id=%s",
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--
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2.15.1
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