[libvirt] [PATCH 11/11] conf: eliminate virDomainPCIAddressReleaseSlot() in favor of ...Addr()

[Laine Stump]

Surprisingly there was a virDomainPCIAddressReleaseAddr() function
already, but it was completely unused. Since we don't reserve entire
slots at once any more, there is no need to release entire slots
either, so we just replace the single call to
virDomainPCIAddressReleaseSlot() with a call to
virDomainPCIAddressReleaseAddr() and remove the now unused function.

The keen observer may be concerned that ...Addr() doesn't call
virDomainPCIAddressValidate(), as ...Slot() did. But really the
validation was pointless anyway - if the device hadn't been suitable
to be connected at that address, it would have failed validation
before every being reserved in the first place, so by definition it
will pass validation when it is being unplugged. (And anyway, even if
something "bad" happened and we managed to have a device incorrectly
at the given address, we would still want to be able to free it up for
use by a device that *did* validate properly).
---
 src/conf/domain_addr.c         | 25 -------------------------
 src/conf/domain_addr.h         |  4 ----
 src/libvirt_private.syms       |  2 +-
 src/qemu/qemu_domain_address.c |  2 +-
 4 files changed, 2 insertions(+), 31 deletions(-)

diff --git a/src/conf/domain_addr.c b/src/conf/domain_addr.c
index e1cbe36..76e1db7 100644
--- a/src/conf/domain_addr.c
+++ b/src/conf/domain_addr.c
@@ -589,31 +589,6 @@ virDomainPCIAddressReleaseAddr(virDomainPCIAddressSetPtr addrs,
     return 0;
 }
 
-int
-virDomainPCIAddressReleaseSlot(virDomainPCIAddressSetPtr addrs,
-                               virPCIDeviceAddressPtr addr)
-{
-    /* permit any kind of connection type in validation, since we
-     * already had it, and are giving it back.
-     */
-    virDomainPCIConnectFlags flags = VIR_PCI_CONNECT_TYPES_MASK;
-    int ret = -1;
-    char *addrStr = NULL;
-
-    if (!(addrStr = virDomainPCIAddressAsString(addr)))
-        goto cleanup;
-
-    if (!virDomainPCIAddressValidate(addrs, addr, addrStr, flags, true))
-        goto cleanup;
-
-    addrs->buses[addr->bus].slot[addr->slot].functions = 0;
-    ret = 0;
- cleanup:
-    VIR_FREE(addrStr);
-    return ret;
-}
-
-
 virDomainPCIAddressSetPtr
 virDomainPCIAddressSetAlloc(unsigned int nbuses)
 {
diff --git a/src/conf/domain_addr.h b/src/conf/domain_addr.h
index f2cef4f..ccaccef 100644
--- a/src/conf/domain_addr.h
+++ b/src/conf/domain_addr.h
@@ -164,10 +164,6 @@ int virDomainPCIAddressReleaseAddr(virDomainPCIAddressSetPtr addrs,
                                    virPCIDeviceAddressPtr addr)
     ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2);
 
-int virDomainPCIAddressReleaseSlot(virDomainPCIAddressSetPtr addrs,
-                                   virPCIDeviceAddressPtr addr)
-    ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2);
-
 int virDomainPCIAddressReserveNextAddr(virDomainPCIAddressSetPtr addrs,
                                        virDomainDeviceInfoPtr dev,
                                        virDomainPCIConnectFlags flags,
diff --git a/src/libvirt_private.syms b/src/libvirt_private.syms
index 9a4db3b..982625c 100644
--- a/src/libvirt_private.syms
+++ b/src/libvirt_private.syms
@@ -100,7 +100,7 @@ virDomainPCIAddressBusSetModel;
 virDomainPCIAddressEnsureAddr;
 virDomainPCIAddressFlagsCompatible;
 virDomainPCIAddressIsMulti;
-virDomainPCIAddressReleaseSlot;
+virDomainPCIAddressReleaseAddr;
 virDomainPCIAddressReserveAddr;
 virDomainPCIAddressReserveNextAddr;
 virDomainPCIAddressSetAlloc;
diff --git a/src/qemu/qemu_domain_address.c b/src/qemu/qemu_domain_address.c
index 5889f9f..a9aa163 100644
--- a/src/qemu/qemu_domain_address.c
+++ b/src/qemu/qemu_domain_address.c
@@ -2310,7 +2310,7 @@ qemuDomainReleaseDeviceAddress(virDomainObjPtr vm,
         devstr = info->alias;
 
     if (virDeviceInfoPCIAddressPresent(info) &&
-        virDomainPCIAddressReleaseSlot(priv->pciaddrs,
+        virDomainPCIAddressReleaseAddr(priv->pciaddrs,
                                        &info->addr.pci) < 0)
         VIR_WARN("Unable to release PCI address on %s",
                  NULLSTR(devstr));
-- 
2.7.4