[libvirt PATCH 4/6] qemu: use a switch when building device addresses
The compiler can more easily optimize a switch, and more importantly can
also warn when new address types are added which are not handled.
Signed-off-by: Daniel P. Berrangé <berrange(a)redhat.com>
---
src/qemu/qemu_command.c | 37 +++++++++++++++++++++++++++++++------
1 file changed, 31 insertions(+), 6 deletions(-)
diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c
index d3fcca699a..bf60289786 100644
--- a/src/qemu/qemu_command.c
+++ b/src/qemu/qemu_command.c
@@ -351,7 +351,8 @@ qemuBuildDeviceAddressStr(virBufferPtr buf,
bool contIsPHB = false;
int contTargetIndex = 0;
- if (info->type == VIR_DOMAIN_DEVICE_ADDRESS_TYPE_PCI) {
+ switch ((virDomainDeviceAddressType)info->type) {
+ case VIR_DOMAIN_DEVICE_ADDRESS_TYPE_PCI: {
size_t i;
if (!(devStr = virPCIDeviceAddressAsString(&info->addr.pci)))
@@ -419,7 +420,9 @@ qemuBuildDeviceAddressStr(virBufferPtr buf,
virBufferAsprintf(buf, ",addr=0x%x", info->addr.pci.slot);
if (info->addr.pci.function != 0)
virBufferAsprintf(buf, ".0x%x", info->addr.pci.function);
- } else if (info->type == VIR_DOMAIN_DEVICE_ADDRESS_TYPE_USB) {
+ } break;
+
+ case VIR_DOMAIN_DEVICE_ADDRESS_TYPE_USB:
if (!(contAlias = virDomainControllerAliasFind(domainDef,
VIR_DOMAIN_CONTROLLER_TYPE_USB,
info->addr.usb.bus)))
@@ -429,23 +432,45 @@ qemuBuildDeviceAddressStr(virBufferPtr buf,
virBufferAddLit(buf, ",port=");
virDomainUSBAddressPortFormatBuf(buf, info->addr.usb.port);
}
- } else if (info->type == VIR_DOMAIN_DEVICE_ADDRESS_TYPE_SPAPRVIO) {
+ break;
+
+ case VIR_DOMAIN_DEVICE_ADDRESS_TYPE_SPAPRVIO:
if (info->addr.spaprvio.has_reg)
virBufferAsprintf(buf, ",reg=0x%08llx",
info->addr.spaprvio.reg);
- } else if (info->type == VIR_DOMAIN_DEVICE_ADDRESS_TYPE_CCW) {
+ break;
+
+ case VIR_DOMAIN_DEVICE_ADDRESS_TYPE_CCW:
if (info->addr.ccw.assigned)
virBufferAsprintf(buf, ",devno=%x.%x.%04x",
info->addr.ccw.cssid,
info->addr.ccw.ssid,
info->addr.ccw.devno);
- } else if (info->type == VIR_DOMAIN_DEVICE_ADDRESS_TYPE_ISA) {
+ break;
+
+ case VIR_DOMAIN_DEVICE_ADDRESS_TYPE_ISA:
virBufferAsprintf(buf, ",iobase=0x%x,irq=0x%x",
info->addr.isa.iobase,
info->addr.isa.irq);
- } else if (info->type == VIR_DOMAIN_DEVICE_ADDRESS_TYPE_DIMM) {
+ break;
+
+ case VIR_DOMAIN_DEVICE_ADDRESS_TYPE_DIMM:
virBufferAsprintf(buf, ",slot=%d", info->addr.dimm.slot);
if (info->addr.dimm.base)
virBufferAsprintf(buf, ",addr=%llu", info->addr.dimm.base);
+ break;
+
+ case VIR_DOMAIN_DEVICE_ADDRESS_TYPE_NONE:
+ case VIR_DOMAIN_DEVICE_ADDRESS_TYPE_DRIVE:
+ case VIR_DOMAIN_DEVICE_ADDRESS_TYPE_VIRTIO_SERIAL:
+ case VIR_DOMAIN_DEVICE_ADDRESS_TYPE_CCID:
+ case VIR_DOMAIN_DEVICE_ADDRESS_TYPE_VIRTIO_S390:
+ case VIR_DOMAIN_DEVICE_ADDRESS_TYPE_VIRTIO_MMIO:
+ case VIR_DOMAIN_DEVICE_ADDRESS_TYPE_UNASSIGNED:
+ break;
+
+ case VIR_DOMAIN_DEVICE_ADDRESS_TYPE_LAST:
+ virReportEnumRangeError(virDomainDeviceAddressType, info->type);
+ return -1;
}
return 0;
--
2.30.2