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qemu_alias: Rewrite of code pattern

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This patch rewrites the pattern using early return where it is
not needed and changes the return type of the functions to 'void'
if possible.

Signed-off-by: Kristina Hanicova <khanicov@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
This commit is contained in:
Kristina Hanicova 2021-11-24 17:12:53 +01:00 committed by Michal Privoznik
parent 46caf6bac9
commit e9b7ebee1e
3 changed files with 44 additions and 82 deletions
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107
src/qemu/qemu_alias.c
View File

@ -359,75 +359,57 @@ qemuAssignDeviceFSAlias(virDomainDef *def,
}
static int
static void
qemuAssignDeviceSoundAlias(virDomainSoundDef *sound,
int idx)
{
if (sound->info.alias)
return 0;
sound->info.alias = g_strdup_printf("sound%d", idx);
return 0;
if (!sound->info.alias)
sound->info.alias = g_strdup_printf("sound%d", idx);
}
static int
static void
qemuAssignDeviceVideoAlias(virDomainVideoDef *video,
int idx)
{
if (video->info.alias)
return 0;
video->info.alias = g_strdup_printf("video%d", idx);
return 0;
if (!video->info.alias)
video->info.alias = g_strdup_printf("video%d", idx);
}
static int
static void
qemuAssignDeviceHubAlias(virDomainHubDef *hub,
int idx)
{
if (hub->info.alias)
return 0;
hub->info.alias = g_strdup_printf("hub%d", idx);
return 0;
if (!hub->info.alias)
hub->info.alias = g_strdup_printf("hub%d", idx);
}
static int
static void
qemuAssignDeviceSmartcardAlias(virDomainSmartcardDef *smartcard,
int idx)
{
if (smartcard->info.alias)
return 0;
smartcard->info.alias = g_strdup_printf("smartcard%d", idx);
return 0;
if (!smartcard->info.alias)
smartcard->info.alias = g_strdup_printf("smartcard%d", idx);
}
static int
static void
qemuAssignDeviceMemballoonAlias(virDomainMemballoonDef *memballoon,
int idx)
{
if (memballoon->info.alias)
return 0;
memballoon->info.alias = g_strdup_printf("balloon%d", idx);
return 0;
if (!memballoon->info.alias)
memballoon->info.alias = g_strdup_printf("balloon%d", idx);
}
static int
static void
qemuAssignDeviceTPMAlias(virDomainTPMDef *tpm,
int idx)
{
if (tpm->info.alias)
return 0;
tpm->info.alias = g_strdup_printf("tpm%d", idx);
return 0;
if (!tpm->info.alias)
tpm->info.alias = g_strdup_printf("tpm%d", idx);
}
@ -583,26 +565,23 @@ qemuAssignDeviceShmemAlias(virDomainDef *def,
}
int
void
qemuAssignDeviceWatchdogAlias(virDomainWatchdogDef *watchdog)
{
/* Currently, there's just one watchdog per domain */
if (watchdog->info.alias)
return 0;
watchdog->info.alias = g_strdup("watchdog0");
return 0;
if (!watchdog->info.alias)
watchdog->info.alias = g_strdup("watchdog0");
}
int
void
qemuAssignDeviceInputAlias(virDomainDef *def,
virDomainInputDef *input,
int idx)
{
if (input->info.alias)
return 0;
return;
if (idx == -1) {
int thisidx;
@ -615,19 +594,14 @@ qemuAssignDeviceInputAlias(virDomainDef *def,
}
input->info.alias = g_strdup_printf("input%d", idx);
return 0;
}
int
void
qemuAssignDeviceVsockAlias(virDomainVsockDef *vsock)
{
if (vsock->info.alias)
return 0;
vsock->info.alias = g_strdup("vsock0");
return 0;
if (!vsock->info.alias)
vsock->info.alias = g_strdup("vsock0");
}
@ -650,8 +624,7 @@ qemuAssignDeviceAliases(virDomainDef *def, virQEMUCaps *qemuCaps)
return -1;
}
for (i = 0; i < def->nsounds; i++) {
if (qemuAssignDeviceSoundAlias(def->sounds[i], i) < 0)
return -1;
qemuAssignDeviceSoundAlias(def->sounds[i], i);
}
for (i = 0; i < def->nhostdevs; i++) {
/* we can't start assigning at 0, since netdevs may have used
@ -667,16 +640,14 @@ qemuAssignDeviceAliases(virDomainDef *def, virQEMUCaps *qemuCaps)
return -1;
}
for (i = 0; i < def->nvideos; i++) {
if (qemuAssignDeviceVideoAlias(def->videos[i], i) < 0)
return -1;
qemuAssignDeviceVideoAlias(def->videos[i], i);
}
for (i = 0; i < def->ncontrollers; i++) {
if (qemuAssignDeviceControllerAlias(def, def->controllers[i]) < 0)
return -1;
}
for (i = 0; i < def->ninputs; i++) {
if (qemuAssignDeviceInputAlias(def, def->inputs[i], i) < 0)
return -1;
qemuAssignDeviceInputAlias(def, def->inputs[i], i);
}
for (i = 0; i < def->nparallels; i++) {
if (qemuAssignDeviceChrAlias(def, def->parallels[i], i) < 0)
@ -695,41 +666,35 @@ qemuAssignDeviceAliases(virDomainDef *def, virQEMUCaps *qemuCaps)
return -1;
}
for (i = 0; i < def->nhubs; i++) {
if (qemuAssignDeviceHubAlias(def->hubs[i], i) < 0)
return -1;
qemuAssignDeviceHubAlias(def->hubs[i], i);
}
for (i = 0; i < def->nshmems; i++) {
if (qemuAssignDeviceShmemAlias(def, def->shmems[i], i) < 0)
return -1;
}
for (i = 0; i < def->nsmartcards; i++) {
if (qemuAssignDeviceSmartcardAlias(def->smartcards[i], i) < 0)
return -1;
qemuAssignDeviceSmartcardAlias(def->smartcards[i], i);
}
if (def->watchdog) {
if (qemuAssignDeviceWatchdogAlias(def->watchdog) < 0)
return -1;
qemuAssignDeviceWatchdogAlias(def->watchdog);
}
if (def->memballoon &&
def->memballoon->model != VIR_DOMAIN_MEMBALLOON_MODEL_NONE) {
if (qemuAssignDeviceMemballoonAlias(def->memballoon, 0) < 0)
return -1;
qemuAssignDeviceMemballoonAlias(def->memballoon, 0);
}
for (i = 0; i < def->nrngs; i++) {
if (qemuAssignDeviceRNGAlias(def, def->rngs[i]) < 0)
return -1;
}
for (i = 0; i < def->ntpms; i++) {
if (qemuAssignDeviceTPMAlias(def->tpms[i], i) < 0)
return -1;
qemuAssignDeviceTPMAlias(def->tpms[i], i);
}
for (i = 0; i < def->nmems; i++) {
if (qemuAssignDeviceMemoryAlias(def, def->mems[i], false) < 0)
return -1;
}
if (def->vsock) {
if (qemuAssignDeviceVsockAlias(def->vsock) < 0)
return -1;
qemuAssignDeviceVsockAlias(def->vsock);
}
return 0;

10
src/qemu/qemu_alias.h
View File

@ -65,13 +65,13 @@ int qemuAssignDeviceShmemAlias(virDomainDef *def,
virDomainShmemDef *shmem,
int idx);
int qemuAssignDeviceWatchdogAlias(virDomainWatchdogDef *watchdog);
void qemuAssignDeviceWatchdogAlias(virDomainWatchdogDef *watchdog);
int qemuAssignDeviceInputAlias(virDomainDef *def,
virDomainInputDef *input,
int idx);
void qemuAssignDeviceInputAlias(virDomainDef *def,
virDomainInputDef *input,
int idx);
int qemuAssignDeviceVsockAlias(virDomainVsockDef *vsock);
void qemuAssignDeviceVsockAlias(virDomainVsockDef *vsock);
int qemuAssignDeviceAliases(virDomainDef *def, virQEMUCaps *qemuCaps);

9
src/qemu/qemu_hotplug.c
View File

@ -3130,8 +3130,7 @@ qemuDomainAttachWatchdog(virQEMUDriver *driver,
return -1;
}
if (qemuAssignDeviceWatchdogAlias(watchdog) < 0)
return -1;
qemuAssignDeviceWatchdogAlias(watchdog);
if (watchdog->model == VIR_DOMAIN_WATCHDOG_MODEL_I6300ESB) {
if (qemuDomainEnsurePCIAddress(vm, &dev) < 0)
@ -3239,8 +3238,7 @@ qemuDomainAttachInputDevice(virQEMUDriver *driver,
bool teardownlabel = false;
bool teardowncgroup = false;
if (qemuAssignDeviceInputAlias(vm->def, input, -1) < 0)
return -1;
qemuAssignDeviceInputAlias(vm->def, input, -1);
switch ((virDomainInputBus) input->bus) {
case VIR_DOMAIN_INPUT_BUS_USB:
@ -3359,8 +3357,7 @@ qemuDomainAttachVsockDevice(virQEMUDriver *driver,
if (qemuDomainEnsureVirtioAddress(&releaseaddr, vm, &dev) < 0)
return -1;
if (qemuAssignDeviceVsockAlias(vsock) < 0)
goto cleanup;
qemuAssignDeviceVsockAlias(vsock);
if (qemuProcessOpenVhostVsock(vsock) < 0)
goto cleanup;