[PATCH 1/3] hw/pci: Have various pci_bus*() methods take a const PCIBus argument

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

Mark the PCIBus pointer argument const when methods
don't need to update the structure referenced.

Signed-off-by: Philippe Mathieu-Daudé <philmd@oss.qualcomm.com>
---
 include/hw/pci/pci.h                | 10 +++++-----
 include/hw/pci/pci_bus.h            | 10 +++++-----
 hw/pci-bridge/pci_expander_bridge.c |  4 ++--
 hw/pci/pci.c                        | 18 +++++++++---------
 4 files changed, 21 insertions(+), 21 deletions(-)

diff --git a/include/hw/pci/pci.h b/include/hw/pci/pci.h
index f2448e941a0..f05d4d867b4 100644
--- a/include/hw/pci/pci.h
+++ b/include/hw/pci/pci.h
@@ -308,8 +308,8 @@ void pci_bus_irqs(PCIBus *bus, pci_set_irq_fn set_irq,
                   void *irq_opaque, int nirq);
 void pci_bus_map_irqs(PCIBus *bus, pci_map_irq_fn map_irq);
 void pci_bus_irqs_cleanup(PCIBus *bus);
-int pci_bus_get_irq_level(PCIBus *bus, int irq_num);
-uint32_t pci_bus_get_slot_reserved_mask(PCIBus *bus);
+int pci_bus_get_irq_level(const PCIBus *bus, int irq_num);
+uint32_t pci_bus_get_slot_reserved_mask(const PCIBus *bus);
 void pci_bus_set_slot_reserved_mask(PCIBus *bus, uint32_t mask);
 void pci_bus_clear_slot_reserved_mask(PCIBus *bus, uint32_t mask);
 bool pci_bus_add_fw_cfg_extra_pci_roots(FWCfgState *fw_cfg,
@@ -345,14 +345,14 @@ static inline PCIBus *pci_get_bus(const PCIDevice *dev)
 {
     return PCI_BUS(qdev_get_parent_bus(DEVICE(dev)));
 }
-int pci_bus_num(PCIBus *s);
-void pci_bus_range(PCIBus *bus, int *min_bus, int *max_bus);
+int pci_bus_num(const PCIBus *s);
+void pci_bus_range(const PCIBus *bus, int *min_bus, int *max_bus);
 static inline int pci_dev_bus_num(const PCIDevice *dev)
 {
     return pci_bus_num(pci_get_bus(dev));
 }
 
-int pci_bus_numa_node(PCIBus *bus);
+int pci_bus_numa_node(const PCIBus *bus);
 void pci_for_each_device(PCIBus *bus, int bus_num,
                          pci_bus_dev_fn fn,
                          void *opaque);
diff --git a/include/hw/pci/pci_bus.h b/include/hw/pci/pci_bus.h
index c7384467888..7a3f2e4dde9 100644
--- a/include/hw/pci/pci_bus.h
+++ b/include/hw/pci/pci_bus.h
@@ -15,8 +15,8 @@ struct PCIBusClass {
     BusClass parent_class;
     /*< public >*/
 
-    int (*bus_num)(PCIBus *bus);
-    uint16_t (*numa_node)(PCIBus *bus);
+    int (*bus_num)(const PCIBus *bus);
+    uint16_t (*numa_node)(const PCIBus *bus);
 };
 
 enum PCIBusFlags {
@@ -58,17 +58,17 @@ struct PCIBus {
     Notifier machine_done;
 };
 
-static inline bool pci_bus_is_cxl(PCIBus *bus)
+static inline bool pci_bus_is_cxl(const PCIBus *bus)
 {
     return !!(bus->flags & PCI_BUS_CXL);
 }
 
-static inline bool pci_bus_is_root(PCIBus *bus)
+static inline bool pci_bus_is_root(const PCIBus *bus)
 {
     return !!(bus->flags & PCI_BUS_IS_ROOT);
 }
 
-static inline bool pci_bus_allows_extended_config_space(PCIBus *bus)
+static inline bool pci_bus_allows_extended_config_space(const PCIBus *bus)
 {
     return !!(bus->flags & PCI_BUS_EXTENDED_CONFIG_SPACE);
 }
diff --git a/hw/pci-bridge/pci_expander_bridge.c b/hw/pci-bridge/pci_expander_bridge.c
index 40ffbc4e082..f981c47edee 100644
--- a/hw/pci-bridge/pci_expander_bridge.c
+++ b/hw/pci-bridge/pci_expander_bridge.c
@@ -68,14 +68,14 @@ bool cxl_get_hb_passthrough(PCIHostState *hb)
     return host->passthrough;
 }
 
-static int pxb_bus_num(PCIBus *bus)
+static int pxb_bus_num(const PCIBus *bus)
 {
     PXBDev *pxb = PXB_DEV(bus->parent_dev);
 
     return pxb->bus_nr;
 }
 
-static uint16_t pxb_bus_numa_node(PCIBus *bus)
+static uint16_t pxb_bus_numa_node(const PCIBus *bus)
 {
     PXBDev *pxb = PXB_DEV(bus->parent_dev);
 
diff --git a/hw/pci/pci.c b/hw/pci/pci.c
index d3191609e28..b04e94a150b 100644
--- a/hw/pci/pci.c
+++ b/hw/pci/pci.c
@@ -225,7 +225,7 @@ static void pci_bus_unrealize(BusState *qbus)
     vmstate_unregister(NULL, &vmstate_pcibus, bus);
 }
 
-static int pcibus_num(PCIBus *bus)
+static int pcibus_num(const PCIBus *bus)
 {
     if (pci_bus_is_root(bus)) {
         return 0; /* pci host bridge */
@@ -233,7 +233,7 @@ static int pcibus_num(PCIBus *bus)
     return bus->parent_dev->config[PCI_SECONDARY_BUS];
 }
 
-static uint16_t pcibus_numa_node(PCIBus *bus)
+static uint16_t pcibus_numa_node(const PCIBus *bus)
 {
     return NUMA_NODE_UNASSIGNED;
 }
@@ -411,7 +411,7 @@ static void pci_change_irq_level(PCIDevice *pci_dev, int irq_num, int change)
     pci_bus_change_irq_level(bus, irq_num, change);
 }
 
-int pci_bus_get_irq_level(PCIBus *bus, int irq_num)
+int pci_bus_get_irq_level(const PCIBus *bus, int irq_num)
 {
     assert(irq_num >= 0);
     assert(irq_num < bus->nirq);
@@ -781,13 +781,13 @@ void pci_unregister_root_bus(PCIBus *bus)
     pci_root_bus_cleanup(bus);
 }
 
-int pci_bus_num(PCIBus *s)
+int pci_bus_num(const PCIBus *s)
 {
     return PCI_BUS_GET_CLASS(s)->bus_num(s);
 }
 
 /* Returns the min and max bus numbers of a PCI bus hierarchy */
-void pci_bus_range(PCIBus *bus, int *min_bus, int *max_bus)
+void pci_bus_range(const PCIBus *bus, int *min_bus, int *max_bus)
 {
     int i;
     *min_bus = *max_bus = pci_bus_num(bus);
@@ -802,7 +802,7 @@ void pci_bus_range(PCIBus *bus, int *min_bus, int *max_bus)
     }
 }
 
-int pci_bus_numa_node(PCIBus *bus)
+int pci_bus_numa_node(const PCIBus *bus)
 {
     return PCI_BUS_GET_CLASS(bus)->numa_node(bus);
 }
@@ -1304,17 +1304,17 @@ uint16_t pci_requester_id(PCIDevice *dev)
     return pci_req_id_cache_extract(&dev->requester_id_cache);
 }
 
-static bool pci_bus_devfn_available(PCIBus *bus, int devfn)
+static bool pci_bus_devfn_available(const PCIBus *bus, int devfn)
 {
     return !(bus->devices[devfn]);
 }
 
-static bool pci_bus_devfn_reserved(PCIBus *bus, int devfn)
+static bool pci_bus_devfn_reserved(const PCIBus *bus, int devfn)
 {
     return bus->slot_reserved_mask & (1UL << PCI_SLOT(devfn));
 }
 
-uint32_t pci_bus_get_slot_reserved_mask(PCIBus *bus)
+uint32_t pci_bus_get_slot_reserved_mask(const PCIBus *bus)
 {
     return bus->slot_reserved_mask;
 }
-- 
2.53.0