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pci, virtio-devices: Fix rust 1.48 clippy warnings

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Unnecessary closure used to substitute value for `Option::None`
See https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_lazy_evaluations

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
This commit is contained in:
Samuel Ortiz 2020-11-20 12:26:11 +01:00
parent a406d90059
commit 72bb255ff6
4 changed files with 13 additions and 13 deletions
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6
pci/src/configuration.rs
View File

@ -570,7 +570,7 @@ impl PciConfiguration {
let end_addr = config
.addr
.checked_add(config.size - 1)
.ok_or_else(|| Error::BarAddressInvalid(config.addr, config.size))?;
.ok_or(Error::BarAddressInvalid(config.addr, config.size))?;
match config.region_type {
PciBarRegionType::Memory32BitRegion | PciBarRegionType::IORegion => {
if end_addr > u64::from(u32::max_value()) {
@ -642,7 +642,7 @@ impl PciConfiguration {
let end_addr = config
.addr
.checked_add(config.size - 1)
.ok_or_else(|| Error::RomBarAddressInvalid(config.addr, config.size))?;
.ok_or(Error::RomBarAddressInvalid(config.addr, config.size))?;
if end_addr > u64::from(u32::max_value()) {
return Err(Error::RomBarAddressInvalid(config.addr, config.size));
@ -698,7 +698,7 @@ impl PciConfiguration {
};
let end_offset = cap_offset
.checked_add(total_len)
.ok_or_else(|| Error::CapabilitySpaceFull(total_len))?;
.ok_or(Error::CapabilitySpaceFull(total_len))?;
if end_offset > CAPABILITY_MAX_OFFSET {
return Err(Error::CapabilitySpaceFull(total_len));
}

6
pci/src/vfio.rs
View File

@ -750,7 +750,7 @@ impl PciDevice for VfioPciDevice {
// The address needs to be 4 bytes aligned.
bar_addr = allocator
.allocate_io_addresses(None, region_size, Some(0x4))
.ok_or_else(|| PciDeviceError::IoAllocationFailed(region_size))?;
.ok_or(PciDeviceError::IoAllocationFailed(region_size))?;
}
#[cfg(target_arch = "aarch64")]
unimplemented!()
@ -797,11 +797,11 @@ impl PciDevice for VfioPciDevice {
if is_64bit_bar {
bar_addr = allocator
.allocate_mmio_addresses(None, region_size, Some(bar_alignment))
.ok_or_else(|| PciDeviceError::IoAllocationFailed(region_size))?;
.ok_or(PciDeviceError::IoAllocationFailed(region_size))?;
} else {
bar_addr = allocator
.allocate_mmio_hole_addresses(None, region_size, Some(bar_alignment))
.ok_or_else(|| PciDeviceError::IoAllocationFailed(region_size))?;
.ok_or(PciDeviceError::IoAllocationFailed(region_size))?;
}
}

6
virtio-devices/src/vhost_user/vu_common_ctrl.rs
View File

@ -77,15 +77,15 @@ pub fn setup_vhost_user_vring(
queue.desc_table,
actual_size * std::mem::size_of::<Descriptor>(),
)
.ok_or_else(|| Error::DescriptorTableAddress)? as u64,
.ok_or(Error::DescriptorTableAddress)? as u64,
// The used ring is {flags: u16; idx: u16; virtq_used_elem [{id: u16, len: u16}; actual_size]},
// i.e. 4 + (4 + 4) * actual_size.
used_ring_addr: get_host_address_range(mem, queue.used_ring, 4 + actual_size * 8)
.ok_or_else(|| Error::UsedAddress)? as u64,
.ok_or(Error::UsedAddress)? as u64,
// The used ring is {flags: u16; idx: u16; elem [u16; actual_size]},
// i.e. 4 + (2) * actual_size.
avail_ring_addr: get_host_address_range(mem, queue.avail_ring, 4 + actual_size * 2)
.ok_or_else(|| Error::AvailAddress)? as u64,
.ok_or(Error::AvailAddress)? as u64,
log_addr: None,
};

8
virtio-devices/src/vsock/packet.rs
View File

@ -118,7 +118,7 @@ impl VsockPacket {
let mut pkt = Self {
hdr: get_host_address_range(head.mem, head.addr, VSOCK_PKT_HDR_SIZE)
.ok_or_else(|| VsockError::GuestMemory)? as *mut u8,
.ok_or(VsockError::GuestMemory)? as *mut u8,
buf: None,
buf_size: 0,
};
@ -151,7 +151,7 @@ impl VsockPacket {
pkt.buf_size = buf_desc.len as usize;
pkt.buf = Some(
get_host_address_range(buf_desc.mem, buf_desc.addr, pkt.buf_size)
.ok_or_else(|| VsockError::GuestMemory)? as *mut u8,
.ok_or(VsockError::GuestMemory)? as *mut u8,
);
Ok(pkt)
@ -183,10 +183,10 @@ impl VsockPacket {
Ok(Self {
hdr: get_host_address_range(head.mem, head.addr, VSOCK_PKT_HDR_SIZE)
.ok_or_else(|| VsockError::GuestMemory)? as *mut u8,
.ok_or(VsockError::GuestMemory)? as *mut u8,
buf: Some(
get_host_address_range(buf_desc.mem, buf_desc.addr, buf_size)
.ok_or_else(|| VsockError::GuestMemory)? as *mut u8,
.ok_or(VsockError::GuestMemory)? as *mut u8,
),
buf_size,
})