[libvirt] [PATCH] cleanup: clamp max info with MIN().

[Dongsheng Yang]

Rather than using a open coded implementation,
this patch use MIN macro to clamp infomation
to allowed maxmum.

Signed-off-by: Dongsheng Yang <yangds.fnst at cn.fujitsu.com>
---
 src/qemu/qemu_driver.c | 18 ++++++------------
 src/test/test_driver.c | 10 +++-------
 2 files changed, 9 insertions(+), 19 deletions(-)

diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
index 52ca47c..b3782dd 100644
--- a/src/qemu/qemu_driver.c
+++ b/src/qemu/qemu_driver.c
@@ -4542,12 +4542,9 @@ qemuDomainGetVcpuPinInfo(virDomainPtr dom,
         goto cleanup;
 
     maxcpu = maplen * 8;
-    if (maxcpu > hostcpus)
-        maxcpu = hostcpus;
 
-    /* Clamp to actual number of vcpus */
-    if (ncpumaps > targetDef->vcpus)
-        ncpumaps = targetDef->vcpus;
+    maxcpu = MIN(maxcpu, hostcpus);
+    ncpumaps = MIN(ncpumaps, targetDef->vcpus);
 
     if (ncpumaps < 1) {
         goto cleanup;
@@ -4786,8 +4783,8 @@ qemuDomainGetEmulatorPinInfo(virDomainPtr dom,
         goto cleanup;
 
     maxcpu = maplen * 8;
-    if (maxcpu > hostcpus)
-        maxcpu = hostcpus;
+
+    maxcpu = MIN(maxcpu, hostcpus);
 
     /* initialize cpumaps */
     memset(cpumaps, 0xff, maplen);
@@ -4852,12 +4849,9 @@ qemuDomainGetVcpus(virDomainPtr dom,
         goto cleanup;
 
     maxcpu = maplen * 8;
-    if (maxcpu > hostcpus)
-        maxcpu = hostcpus;
 
-    /* Clamp to actual number of vcpus */
-    if (maxinfo > priv->nvcpupids)
-        maxinfo = priv->nvcpupids;
+    maxcpu = MIN(maxcpu, hostcpus);
+    maxinfo = MIN(maxinfo, priv->nvcpupids);
 
     if (maxinfo >= 1) {
         if (info != NULL) {
diff --git a/src/test/test_driver.c b/src/test/test_driver.c
index 37756e7..4e591f2 100644
--- a/src/test/test_driver.c
+++ b/src/test/test_driver.c
@@ -2773,12 +2773,9 @@ static int testDomainGetVcpus(virDomainPtr domain,
 
     hostcpus = VIR_NODEINFO_MAXCPUS(privconn->nodeInfo);
     maxcpu = maplen * 8;
-    if (maxcpu > hostcpus)
-        maxcpu = hostcpus;
 
-    /* Clamp to actual number of vcpus */
-    if (maxinfo > privdom->def->vcpus)
-        maxinfo = privdom->def->vcpus;
+    maxcpu = MIN(maxcpu, hostcpus);
+    maxinfo = MIN(maxinfo, privdom->def->vcpus);
 
     /* Populate virVcpuInfo structures */
     if (info != NULL) {
@@ -2858,8 +2855,7 @@ static int testDomainPinVcpu(virDomainPtr domain,
     privmaplen = VIR_CPU_MAPLEN(hostcpus);
 
     maxcpu = maplen * 8;
-    if (maxcpu > hostcpus)
-        maxcpu = hostcpus;
+    maxcpu = MIN(maxcpu, hostcpus);
 
     privcpumap = VIR_GET_CPUMAP(privdomdata->cpumaps, privmaplen, vcpu);
     memset(privcpumap, 0, privmaplen);
-- 
1.8.2.1