On Fri, 27 Jan 2023, Bernhard Beschow wrote:
The variable is redundant to "phb" and is never used by its real type.
Also replace qdev_get_machine() with reference already passed to init function. (Maybe worth mentioning in commit message even if too small change for a separate patch.)
Signed-off-by: Bernhard Beschow <shen...@gmail.com> --- hw/i386/pc_q35.c | 22 ++++++++++------------ 1 file changed, 10 insertions(+), 12 deletions(-) diff --git a/hw/i386/pc_q35.c b/hw/i386/pc_q35.c index 83c57c6eb1..dc94ce1081 100644 --- a/hw/i386/pc_q35.c +++ b/hw/i386/pc_q35.c @@ -118,7 +118,6 @@ static void pc_q35_init(MachineState *machine) PCMachineState *pcms = PC_MACHINE(machine); PCMachineClass *pcmc = PC_MACHINE_GET_CLASS(pcms); X86MachineState *x86ms = X86_MACHINE(machine); - Q35PCIHost *q35_host; PCIHostState *phb;
The phb variable itself is only used once to get the bus from it and it's mostly cast to Object * so maybe store it in a variable of that type to remove most of the casts and IMO you can also remove PCIHostState *phb and just use:
host_bus = PCI_HOST_BRIDGE(phost)->bus; Regards, BALATON Zoltan
PCIBus *host_bus; PCIDevice *lpc; @@ -206,10 +205,10 @@ static void pc_q35_init(MachineState *machine) } /* create pci host bus */ - q35_host = Q35_HOST_DEVICE(qdev_new(TYPE_Q35_HOST_DEVICE)); + phb = PCI_HOST_BRIDGE(qdev_new(TYPE_Q35_HOST_DEVICE)); if (pcmc->pci_enabled) { - pci_hole64_size = object_property_get_uint(OBJECT(q35_host), + pci_hole64_size = object_property_get_uint(OBJECT(phb), PCI_HOST_PROP_PCI_HOLE64_SIZE, &error_abort); } @@ -218,22 +217,21 @@ static void pc_q35_init(MachineState *machine) pc_memory_init(pcms, get_system_memory(), rom_memory, &ram_memory, pci_hole64_size); - object_property_add_child(qdev_get_machine(), "q35", OBJECT(q35_host)); - object_property_set_link(OBJECT(q35_host), MCH_HOST_PROP_RAM_MEM, + object_property_add_child(OBJECT(machine), "q35", OBJECT(phb)); + object_property_set_link(OBJECT(phb), MCH_HOST_PROP_RAM_MEM, OBJECT(ram_memory), NULL); - object_property_set_link(OBJECT(q35_host), MCH_HOST_PROP_PCI_MEM, + object_property_set_link(OBJECT(phb), MCH_HOST_PROP_PCI_MEM, OBJECT(pci_memory), NULL); - object_property_set_link(OBJECT(q35_host), MCH_HOST_PROP_SYSTEM_MEM, + object_property_set_link(OBJECT(phb), MCH_HOST_PROP_SYSTEM_MEM, OBJECT(get_system_memory()), NULL); - object_property_set_link(OBJECT(q35_host), MCH_HOST_PROP_IO_MEM, + object_property_set_link(OBJECT(phb), MCH_HOST_PROP_IO_MEM, OBJECT(system_io), NULL); - object_property_set_int(OBJECT(q35_host), PCI_HOST_BELOW_4G_MEM_SIZE, + object_property_set_int(OBJECT(phb), PCI_HOST_BELOW_4G_MEM_SIZE, x86ms->below_4g_mem_size, NULL); - object_property_set_int(OBJECT(q35_host), PCI_HOST_ABOVE_4G_MEM_SIZE, + object_property_set_int(OBJECT(phb), PCI_HOST_ABOVE_4G_MEM_SIZE, x86ms->above_4g_mem_size, NULL); /* pci */ - sysbus_realize_and_unref(SYS_BUS_DEVICE(q35_host), &error_fatal); - phb = PCI_HOST_BRIDGE(q35_host); + sysbus_realize_and_unref(SYS_BUS_DEVICE(phb), &error_fatal); host_bus = phb->bus; /* create ISA bus */ lpc = pci_create_simple_multifunction(host_bus, PCI_DEVFN(ICH9_LPC_DEV,