[PATCH-for-7.0] hw/pci: Don't open-code pci_intx()

["Philippe Mathieu-Daudé" <philmd@redhat.com>]

Use the pci_intx() helper instead of open-coding it.

Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
---
Based-on: <20211116170133.724751-3-fbarrat@linux.ibm.com>
---
 hw/net/vmxnet3.c  | 2 +-
 hw/remote/iohub.c | 6 ++----
 hw/remote/proxy.c | 3 +--
 3 files changed, 4 insertions(+), 7 deletions(-)

diff --git a/hw/net/vmxnet3.c b/hw/net/vmxnet3.c
index 41f796a247d..c7fc5f44d8f 100644
--- a/hw/net/vmxnet3.c
+++ b/hw/net/vmxnet3.c
@@ -1350,7 +1350,7 @@ static void vmxnet3_update_features(VMXNET3State *s)
 static bool vmxnet3_verify_intx(VMXNET3State *s, int intx)
 {
     return s->msix_used || msi_enabled(PCI_DEVICE(s))
-        || intx == pci_get_byte(s->parent_obj.config + PCI_INTERRUPT_PIN) - 1;
+                        || intx == pci_intx(PCI_DEVICE(s));
 }
 
 static void vmxnet3_validate_interrupt_idx(bool is_msix, int idx)
diff --git a/hw/remote/iohub.c b/hw/remote/iohub.c
index 547d597f0fe..0e0bb651d1a 100644
--- a/hw/remote/iohub.c
+++ b/hw/remote/iohub.c
@@ -93,11 +93,9 @@ void process_set_irqfd_msg(PCIDevice *pci_dev, MPQemuMsg *msg)
 {
     RemoteMachineState *machine = REMOTE_MACHINE(current_machine);
     RemoteIOHubState *iohub = &machine->iohub;
-    int pirq, intx;
+    int pirq;
 
-    intx = pci_get_byte(pci_dev->config + PCI_INTERRUPT_PIN) - 1;
-
-    pirq = remote_iohub_map_irq(pci_dev, intx);
+    pirq = remote_iohub_map_irq(pci_dev, pci_intx(pci_dev));
 
     if (event_notifier_get_fd(&iohub->irqfds[pirq]) != -1) {
         qemu_set_fd_handler(event_notifier_get_fd(&iohub->resamplefds[pirq]),
diff --git a/hw/remote/proxy.c b/hw/remote/proxy.c
index bad164299dd..22f32a5930b 100644
--- a/hw/remote/proxy.c
+++ b/hw/remote/proxy.c
@@ -32,14 +32,13 @@ static void proxy_intx_update(PCIDevice *pci_dev)
 {
     PCIProxyDev *dev = PCI_PROXY_DEV(pci_dev);
     PCIINTxRoute route;
-    int pin = pci_get_byte(pci_dev->config + PCI_INTERRUPT_PIN) - 1;
 
     if (dev->virq != -1) {
         kvm_irqchip_remove_irqfd_notifier_gsi(kvm_state, &dev->intr, dev->virq);
         dev->virq = -1;
     }
 
-    route = pci_device_route_intx_to_irq(pci_dev, pin);
+    route = pci_device_route_intx_to_irq(pci_dev, pci_intx(pci_dev));
 
     dev->virq = route.irq;
 
-- 
2.31.1