[PATCH 16/20] virpci.c: use virPCIDeviceAddressPtr in virPCIDeviceListFindIndex()

[Daniel Henrique Barboza <danielhb413@xxxxxxxxx>]

We're going to need a way to remove a PCI Device from a list without having
a valid virPCIDevicePtr, because the device is missing from the host. This
means that virPCIDevicesListDel() must operate with a PCI Device address
instead.

Turns out that virPCIDevicesListDel() and its related functions only use
the virPCIDeviceAddressPtr of the virPCIDevicePtr, so this change is
simple to do and will not cause hassle in all other callers. Let's
start adapting virPCIDeviceListFindIndex() and crawl our way up to
virPCIDevicesListDel().

Signed-off-by: Daniel Henrique Barboza <danielhb413@xxxxxxxxx>
---
 src/util/virpci.c | 15 ++++++++-------
 src/util/virpci.h |  2 +-
 2 files changed, 9 insertions(+), 8 deletions(-)

diff --git a/src/util/virpci.c b/src/util/virpci.c
index 1a542b18b6..122056dbe0 100644
--- a/src/util/virpci.c
+++ b/src/util/virpci.c
@@ -1745,7 +1745,7 @@ virPCIDevicePtr
 virPCIDeviceListSteal(virPCIDeviceListPtr list,
                       virPCIDevicePtr dev)
 {
-    return virPCIDeviceListStealIndex(list, virPCIDeviceListFindIndex(list, dev));
+    return virPCIDeviceListStealIndex(list, virPCIDeviceListFindIndex(list, &dev->address));
 }
 
 void
@@ -1756,16 +1756,17 @@ virPCIDeviceListDel(virPCIDeviceListPtr list,
 }
 
 int
-virPCIDeviceListFindIndex(virPCIDeviceListPtr list, virPCIDevicePtr dev)
+virPCIDeviceListFindIndex(virPCIDeviceListPtr list,
+                          virPCIDeviceAddressPtr devAddr)
 {
     size_t i;
 
     for (i = 0; i < list->count; i++) {
         virPCIDevicePtr other = list->devs[i];
-        if (other->address.domain   == dev->address.domain &&
-            other->address.bus      == dev->address.bus    &&
-            other->address.slot     == dev->address.slot   &&
-            other->address.function == dev->address.function)
+        if (other->address.domain   == devAddr->domain &&
+            other->address.bus      == devAddr->bus    &&
+            other->address.slot     == devAddr->slot   &&
+            other->address.function == devAddr->function)
             return i;
     }
     return -1;
@@ -1798,7 +1799,7 @@ virPCIDeviceListFind(virPCIDeviceListPtr list, virPCIDevicePtr dev)
 {
     int idx;
 
-    if ((idx = virPCIDeviceListFindIndex(list, dev)) >= 0)
+    if ((idx = virPCIDeviceListFindIndex(list, &dev->address)) >= 0)
         return list->devs[idx];
     else
         return NULL;
diff --git a/src/util/virpci.h b/src/util/virpci.h
index a9c597a428..8c6776da21 100644
--- a/src/util/virpci.h
+++ b/src/util/virpci.h
@@ -175,7 +175,7 @@ virPCIDeviceListFindByIDs(virPCIDeviceListPtr list,
                           unsigned int slot,
                           unsigned int function);
 int virPCIDeviceListFindIndex(virPCIDeviceListPtr list,
-                              virPCIDevicePtr dev);
+                              virPCIDeviceAddressPtr devAddr);
 
 /*
  * Callback that will be invoked once for each file
-- 
2.26.2