[libvirt] [PATCH] Fix gcc 4.6 warnings

[Christophe Fergeau]

gcc 4.6 warns when a variable is initialized but isn't used afterwards:

vmware/vmware_driver.c:449:18: warning: variable 'vmxPath' set but not used [-Wunused-but-set-variable]

This patch fixes these warnings. There are still 2 offending files:

- vbox_tmpl.c: the variable is used inside an #ifdef and is assigned several
  times outside of #ifdef. Fixing the warning would have required wrapping
  all the assignment inside #ifdef which hurts readability.

vbox/vbox_tmpl.c: In function 'vboxAttachDrives':
vbox/vbox_tmpl.c:3918:22: warning: variable 'accessMode' set but not used [-Wunused-but-set-variable]

- esx_vi_types.generated.c: the name implies it's generated code and I
  didn't want to dive into the code generator

esx/esx_vi_types.generated.c: In function 'esxVI_FileQueryFlags_Free':
esx/esx_vi_types.generated.c:1203:3: warning: variable 'item' set but not used [-Wunused-but-set-variable]
---
 src/nwfilter/nwfilter_ebiptables_driver.c |    7 +++----
 src/util/logging.c                        |    3 +--
 src/vmware/vmware_driver.c                |    2 +-
 3 files changed, 5 insertions(+), 7 deletions(-)

diff --git a/src/nwfilter/nwfilter_ebiptables_driver.c b/src/nwfilter/nwfilter_ebiptables_driver.c
index 6c9c470..977f74b 100644
--- a/src/nwfilter/nwfilter_ebiptables_driver.c
+++ b/src/nwfilter/nwfilter_ebiptables_driver.c
@@ -1634,7 +1634,7 @@ iptablesCreateRuleInstanceStateCtrl(virNWFilterDefPtr nwfilter,
                                     bool isIPv6)
 {
     int rc;
-    int directionIn = 0, directionOut = 0;
+    int directionIn = 0;
     char chainPrefix[2];
     bool maySkipICMP, inout = false;
     char *matchState = NULL;
@@ -1643,9 +1643,8 @@ iptablesCreateRuleInstanceStateCtrl(virNWFilterDefPtr nwfilter,
     if ((rule->tt == VIR_NWFILTER_RULE_DIRECTION_IN) ||
         (rule->tt == VIR_NWFILTER_RULE_DIRECTION_INOUT)) {
         directionIn = 1;
-        directionOut = inout = (rule->tt == VIR_NWFILTER_RULE_DIRECTION_INOUT);
-    } else
-        directionOut = 1;
+        inout = (rule->tt == VIR_NWFILTER_RULE_DIRECTION_INOUT);
+    }
 
     chainPrefix[0] = 'F';
 
diff --git a/src/util/logging.c b/src/util/logging.c
index 9d18752..bb3ba13 100644
--- a/src/util/logging.c
+++ b/src/util/logging.c
@@ -389,7 +389,7 @@ static void virLogDumpAllFD(const char *msg, int len) {
 void
 virLogEmergencyDumpAll(int signum) {
     int len;
-    int oldLogStart, oldLogLen, oldLogEnd;
+    int oldLogStart, oldLogLen;
 
     switch (signum) {
 #ifdef SIGFPE
@@ -444,7 +444,6 @@ virLogEmergencyDumpAll(int signum) {
      * so it's best to reset it first.
      */
     oldLogStart = virLogStart;
-    oldLogEnd = virLogEnd;
     oldLogLen = virLogLen;
     virLogEnd = 0;
     virLogLen = 0;
diff --git a/src/vmware/vmware_driver.c b/src/vmware/vmware_driver.c
index b5e416b..bbfb1a4 100644
--- a/src/vmware/vmware_driver.c
+++ b/src/vmware/vmware_driver.c
@@ -467,7 +467,7 @@ vmwareDomainReboot(virDomainPtr dom, unsigned int flags ATTRIBUTE_UNUSED)
     }
 
     vmwareSetSentinal(cmd, vmw_types[driver->type]);
-    vmwareSetSentinal(cmd, ((vmwareDomainPtr) vm->privateData)->vmxPath);
+    vmwareSetSentinal(cmd, vmxPath);
 
 
     if (vm->state != VIR_DOMAIN_RUNNING) {
-- 
1.7.4.4