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qemuInterfacePrepareSlirp: Directly populate the 'slirp' variable in network private data

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Both callers populate the variable when qemuInterfacePrepareSlirp
returned 1. We can save the hassle in the callers by just doing it right
away.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Jonathon Jongsma <jjongsma@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
This commit is contained in:
Peter Krempa 2022-05-10 16:17:17 +02:00
parent 13ae2e2e30
commit 50d2489b7f
4 changed files with 10 additions and 18 deletions
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8
src/qemu/qemu_hotplug.c
View File

@ -1306,14 +1306,12 @@ qemuDomainAttachNetDevice(virQEMUDriver *driver,
if (!priv->disableSlirp &&
virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_DBUS_VMSTATE)) {
qemuSlirp *slirp = NULL;
int rv = qemuInterfacePrepareSlirp(driver, net, &slirp);
if (rv == -1)
if (qemuInterfacePrepareSlirp(driver, net) < 0)
goto cleanup;
if (rv == 0)
break;
QEMU_DOMAIN_NETWORK_PRIVATE(net)->slirp = slirp;
if (!(slirp = QEMU_DOMAIN_NETWORK_PRIVATE(net)->slirp))
break;
if (qemuSlirpOpen(slirp, driver, vm->def) < 0 ||
qemuSlirpStart(slirp, vm, driver, net, NULL) < 0) {

10
src/qemu/qemu_interface.c
View File

@ -651,12 +651,12 @@ qemuInterfaceVDPAConnect(virDomainNetDef *net)
/*
* Returns: -1 on error, 0 if slirp isn't available, 1 on success
* Returns: -1 on error, 0 on success. Populates net->privateData->slirp if
* the slirp helper is needed.
*/
int
qemuInterfacePrepareSlirp(virQEMUDriver *driver,
virDomainNetDef *net,
qemuSlirp **slirpret)
virDomainNetDef *net)
{
g_autoptr(virQEMUDriverConfig) cfg = virQEMUDriverGetConfig(driver);
g_autoptr(qemuSlirp) slirp = NULL;
@ -681,8 +681,8 @@ qemuInterfacePrepareSlirp(virQEMUDriver *driver,
return 0;
}
*slirpret = g_steal_pointer(&slirp);
return 1;
QEMU_DOMAIN_NETWORK_PRIVATE(net)->slirp = g_steal_pointer(&slirp);
return 0;
}

3
src/qemu/qemu_interface.h
View File

@ -55,7 +55,6 @@ int qemuInterfaceOpenVhostNet(virDomainObj *def,
virDomainNetDef *net) G_GNUC_NO_INLINE;
int qemuInterfacePrepareSlirp(virQEMUDriver *driver,
virDomainNetDef *net,
qemuSlirp **slirp);
virDomainNetDef *net);
int qemuInterfaceVDPAConnect(virDomainNetDef *net) G_GNUC_NO_INLINE;

7
src/qemu/qemu_process.c
View File

@ -5728,13 +5728,8 @@ qemuProcessNetworkPrepareDevices(virQEMUDriver *driver,
} else if (actualType == VIR_DOMAIN_NET_TYPE_USER &&
!priv->disableSlirp &&
virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_DBUS_VMSTATE)) {
qemuSlirp *slirp = NULL;
int rv = qemuInterfacePrepareSlirp(driver, net, &slirp);
if (rv == -1)
if (qemuInterfacePrepareSlirp(driver, net) < 0)
return -1;
if (rv == 1)
QEMU_DOMAIN_NETWORK_PRIVATE(net)->slirp = slirp;
}
}