hw/pci-host/i440fx: Have common names for some local variables

`PCIHostState` is often referred to as `phb`, own device state usually as `s`.

Signed-off-by: Bernhard Beschow <shentey@gmail.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20230630073720.21297-11-shentey@gmail.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

hw/pci-host/i440fx.c

@@ -205,28 +205,28 @@ static void i440fx_pcihost_get_pci_hole64_end(Object *obj, Visitor *v,
 
 static void i440fx_pcihost_initfn(Object *obj)
 {
-    PCIHostState *s = PCI_HOST_BRIDGE(obj);
+    PCIHostState *phb = PCI_HOST_BRIDGE(obj);
 
-    memory_region_init_io(&s->conf_mem, obj, &pci_host_conf_le_ops, s,
+    memory_region_init_io(&phb->conf_mem, obj, &pci_host_conf_le_ops, phb,
                           "pci-conf-idx", 4);
-    memory_region_init_io(&s->data_mem, obj, &pci_host_data_le_ops, s,
+    memory_region_init_io(&phb->data_mem, obj, &pci_host_data_le_ops, phb,
                           "pci-conf-data", 4);
 }
 
 static void i440fx_pcihost_realize(DeviceState *dev, Error **errp)
 {
-    PCIHostState *s = PCI_HOST_BRIDGE(dev);
+    PCIHostState *phb = PCI_HOST_BRIDGE(dev);
     SysBusDevice *sbd = SYS_BUS_DEVICE(dev);
 
-    memory_region_add_subregion(s->bus->address_space_io, 0xcf8, &s->conf_mem);
+    memory_region_add_subregion(phb->bus->address_space_io, 0xcf8, &phb->conf_mem);
     sysbus_init_ioports(sbd, 0xcf8, 4);
 
-    memory_region_add_subregion(s->bus->address_space_io, 0xcfc, &s->data_mem);
+    memory_region_add_subregion(phb->bus->address_space_io, 0xcfc, &phb->data_mem);
     sysbus_init_ioports(sbd, 0xcfc, 4);
 
     /* register i440fx 0xcf8 port as coalesced pio */
-    memory_region_set_flush_coalesced(&s->data_mem);
-    memory_region_add_coalescing(&s->conf_mem, 0, 4);
+    memory_region_set_flush_coalesced(&phb->data_mem);
+    memory_region_add_coalescing(&phb->conf_mem, 0, 4);
 }
 
 static void i440fx_realize(PCIDevice *dev, Error **errp)
@@ -248,17 +248,16 @@ PCIBus *i440fx_init(const char *pci_type,
                     MemoryRegion *pci_address_space,
                     MemoryRegion *ram_memory)
 {
+    I440FXState *s = I440FX_PCI_HOST_BRIDGE(dev);
+    PCIHostState *phb = PCI_HOST_BRIDGE(dev);
     PCIBus *b;
     PCIDevice *d;
-    PCIHostState *s;
     PCII440FXState *f;
     unsigned i;
-    I440FXState *i440fx;
 
-    s = PCI_HOST_BRIDGE(dev);
     b = pci_root_bus_new(dev, NULL, pci_address_space,
                          address_space_io, 0, TYPE_PCI_BUS);
-    s->bus = b;
+    phb->bus = b;
     sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal);
 
     d = pci_create_simple(b, 0, pci_type);
@@ -267,8 +266,7 @@ PCIBus *i440fx_init(const char *pci_type,
     f->pci_address_space = pci_address_space;
     f->ram_memory = ram_memory;
 
-    i440fx = I440FX_PCI_HOST_BRIDGE(dev);
-    range_set_bounds(&i440fx->pci_hole, below_4g_mem_size,
+    range_set_bounds(&s->pci_hole, below_4g_mem_size,
                      IO_APIC_DEFAULT_ADDRESS - 1);
 
     /* setup pci memory mapping */