pci: s/pci_find_host_bus/pci_find_root_bus/g

This patch renames pci_find_host_bus() to pci_find_root_bus()
as suggested by "Michael S. Tsirkin" <mst@redhat.com>.
Signed-off-by: NIsaku Yamahata <yamahata@valinux.co.jp>
Signed-off-by: NMichael S. Tsirkin <mst@redhat.com>

hw/pci-hotplug.c

@@ -113,7 +113,7 @@ void drive_hot_add(Monitor *mon, const QDict *qdict)
         if (pci_read_devaddr(mon, pci_addr, &dom, &pci_bus, &slot)) {
             goto err;
         }
-        dev = pci_find_device(pci_find_host_bus(0), pci_bus, slot, 0);
+        dev = pci_find_device(pci_find_root_bus(0), pci_bus, slot, 0);
         if (!dev) {
             monitor_printf(mon, "no pci device with address %s\n", pci_addr);
             goto err;
@@ -257,7 +257,7 @@ void pci_device_hot_remove(Monitor *mon, const char *pci_addr)
         return;
     }
 
-    d = pci_find_device(pci_find_host_bus(0), bus, slot, 0);
+    d = pci_find_device(pci_find_root_bus(0), bus, slot, 0);
     if (!d) {
         monitor_printf(mon, "slot %d empty\n", slot);
         return;

hw/pci.c

@@ -146,7 +146,7 @@ static void pci_host_bus_register(int domain, PCIBus *bus)
     QLIST_INSERT_HEAD(&host_buses, host, next);
 }
 
-PCIBus *pci_find_host_bus(int domain)
+PCIBus *pci_find_root_bus(int domain)
 {
     struct PCIHostBus *host;
 
@@ -372,7 +372,7 @@ static int pci_parse_devaddr(const char *addr, int *domp, int *busp, unsigned *s
 	return -1;
 
     /* Note: QEMU doesn't implement domains other than 0 */
-    if (!pci_find_bus(pci_find_host_bus(dom), bus))
+    if (!pci_find_bus(pci_find_root_bus(dom), bus))
 	return -1;
 
     *domp = dom;
@@ -402,7 +402,7 @@ PCIBus *pci_get_bus_devfn(int *devfnp, const char *devaddr)
 
     if (!devaddr) {
         *devfnp = -1;
-        return pci_find_bus(pci_find_host_bus(0), 0);
+        return pci_find_bus(pci_find_root_bus(0), 0);
     }
 
     if (pci_parse_devaddr(devaddr, &dom, &bus, &slot) < 0) {
@@ -410,7 +410,7 @@ PCIBus *pci_get_bus_devfn(int *devfnp, const char *devaddr)
     }
 
     *devfnp = slot << 3;
-    return pci_find_bus(pci_find_host_bus(0), bus);
+    return pci_find_bus(pci_find_root_bus(0), bus);
 }
 
 static void pci_init_cmask(PCIDevice *dev)

hw/pci.h

@@ -295,7 +295,7 @@ PCIDevice *pci_nic_init_nofail(NICInfo *nd, const char *default_model,
                                const char *default_devaddr);
 int pci_bus_num(PCIBus *s);
 void pci_for_each_device(PCIBus *bus, int bus_num, void (*fn)(PCIBus *bus, PCIDevice *d));
-PCIBus *pci_find_host_bus(int domain);
+PCIBus *pci_find_root_bus(int domain);
 PCIBus *pci_find_bus(PCIBus *bus, int bus_num);
 PCIDevice *pci_find_device(PCIBus *bus, int bus_num, int slot, int function);
 PCIBus *pci_get_bus_devfn(int *devfnp, const char *devaddr);