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build: Remove nested matches

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Update for clippy in Rust 1.50.0:

error: Unnecessary nested match
   --> vmm/src/vm.rs:419:17
    |
419 | /                 if let vm_device::BusError::MissingAddressRange = e {
420 | |                     warn!("Guest MMIO write to unregistered address 0x{:x}", gpa);
421 | |                 }
    | |_________________^
    |
    = note: `-D clippy::collapsible-match` implied by `-D warnings`
help: The outer pattern can be modified to include the inner pattern.
   --> vmm/src/vm.rs:418:17
    |
418 |             Err(e) => {
    |                 ^ Replace this binding
419 |                 if let vm_device::BusError::MissingAddressRange = e {
    |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ with this pattern
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_match

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
This commit is contained in:
Rob Bradford 2021-02-11 16:21:45 +00:00
parent 9c5be6f660
commit bc84a1c79b
1 changed files with 8 additions and 16 deletions
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24
vmm/src/vm.rs
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@ -407,20 +407,16 @@ impl VmmOps for VmOps {
}
fn mmio_read(&self, gpa: u64, data: &mut [u8]) -> hypervisor::vm::Result<()> {
if let Err(e) = self.mmio_bus.read(gpa, data) {
if let vm_device::BusError::MissingAddressRange = e {
warn!("Guest MMIO read to unregistered address 0x{:x}", gpa);
}
if let Err(vm_device::BusError::MissingAddressRange) = self.mmio_bus.read(gpa, data) {
warn!("Guest MMIO read to unregistered address 0x{:x}", gpa);
}
Ok(())
}
fn mmio_write(&self, gpa: u64, data: &[u8]) -> hypervisor::vm::Result<()> {
match self.mmio_bus.write(gpa, data) {
Err(e) => {
if let vm_device::BusError::MissingAddressRange = e {
warn!("Guest MMIO write to unregistered address 0x{:x}", gpa);
}
Err(vm_device::BusError::MissingAddressRange) => {
warn!("Guest MMIO write to unregistered address 0x{:x}", gpa);
}
Ok(Some(barrier)) => {
info!("Waiting for barrier");
@ -434,10 +430,8 @@ impl VmmOps for VmOps {
#[cfg(target_arch = "x86_64")]
fn pio_read(&self, port: u64, data: &mut [u8]) -> hypervisor::vm::Result<()> {
if let Err(e) = self.io_bus.read(port, data) {
if let vm_device::BusError::MissingAddressRange = e {
warn!("Guest PIO read to unregistered address 0x{:x}", port);
}
if let Err(vm_device::BusError::MissingAddressRange) = self.io_bus.read(port, data) {
warn!("Guest PIO read to unregistered address 0x{:x}", port);
}
Ok(())
}
@ -450,10 +444,8 @@ impl VmmOps for VmOps {
}
match self.io_bus.write(port, data) {
Err(e) => {
if let vm_device::BusError::MissingAddressRange = e {
warn!("Guest PIO write to unregistered address 0x{:x}", port);
}
Err(vm_device::BusError::MissingAddressRange) => {
warn!("Guest PIO write to unregistered address 0x{:x}", port);
}
Ok(Some(barrier)) => {
info!("Waiting for barrier");