pci: rename as_any to as_any_mut

That trait function returns a mutable reference. Rename it to follow
Rust's convention.

Signed-off-by: Wei Liu <liuwe@microsoft.com>

devices/src/pvmemcontrol.rs

@@ -708,7 +708,7 @@ impl PciDevice for PvmemcontrolPciDevice {
         self.configuration.read_config_register(reg_idx)
     }
 
-    fn as_any(&mut self) -> &mut dyn std::any::Any {
+    fn as_any_mut(&mut self) -> &mut dyn std::any::Any {
         self
     }
 

devices/src/pvpanic.rs

@@ -237,7 +237,7 @@ impl PciDevice for PvPanicDevice {
         data[0] = self.events;
     }
 
-    fn as_any(&mut self) -> &mut dyn Any {
+    fn as_any_mut(&mut self) -> &mut dyn Any {
         self
     }
 

pci/src/bus.rs

@@ -90,7 +90,7 @@ impl PciDevice for PciRoot {
         self.config.read_reg(reg_idx)
     }
 
-    fn as_any(&mut self) -> &mut dyn Any {
+    fn as_any_mut(&mut self) -> &mut dyn Any {
         self
     }
 

pci/src/device.rs

@@ -115,7 +115,7 @@ pub trait PciDevice: Send {
     }
     /// Provides a mutable reference to the Any trait. This is useful to let
     /// the caller have access to the underlying type behind the trait.
-    fn as_any(&mut self) -> &mut dyn Any;
+    fn as_any_mut(&mut self) -> &mut dyn Any;
 
     /// Optionally returns a unique identifier.
     fn id(&self) -> Option<String>;

pci/src/vfio.rs

@@ -1893,7 +1893,7 @@ impl PciDevice for VfioPciDevice {
         Ok(())
     }
 
-    fn as_any(&mut self) -> &mut dyn Any {
+    fn as_any_mut(&mut self) -> &mut dyn Any {
         self
     }
 

pci/src/vfio_user.rs

@@ -422,7 +422,7 @@ impl PciDevice for VfioUserPciDevice {
             .free_bars(allocator, mmio32_allocator, mmio64_allocator)
     }
 
-    fn as_any(&mut self) -> &mut dyn Any {
+    fn as_any_mut(&mut self) -> &mut dyn Any {
         self
     }
 

virtio-devices/src/transport/pci_device.rs

@@ -1249,7 +1249,7 @@ impl PciDevice for VirtioPciDevice {
         None
     }
 
-    fn as_any(&mut self) -> &mut dyn Any {
+    fn as_any_mut(&mut self) -> &mut dyn Any {
         self
     }
 

vmm/src/device_manager.rs

@@ -644,7 +644,7 @@ impl DeviceRelocation for AddressManager {
             }
         }
 
-        let any_dev = pci_dev.as_any();
+        let any_dev = pci_dev.as_any_mut();
         if let Some(virtio_pci_dev) = any_dev.downcast_ref::<VirtioPciDevice>() {
             let bar_addr = virtio_pci_dev.config_bar_addr();
             if bar_addr == new_base {