dsg/cloud-hypervisor
2
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

acpi_tables: aml: Avoid allocating temporary vector in Interrupt

Browse source 
Use extend_from_slice() vs creating a temporary vector.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
This commit is contained in:
Rob Bradford 2021-11-03 15:08:15 +00:00
parent 242a7f7ab4
commit ef216c37df
1 changed files with 2 additions and 2 deletions
Download patch file Download diff file Expand all files Collapse all files

4
acpi_tables/src/aml.rs
View file

@ -533,14 +533,14 @@ impl Interrupt {
impl Aml for Interrupt {
fn append_aml_bytes(&self, bytes: &mut Vec<u8>) {
bytes.push(0x89); /* Extended IRQ Descriptor */
bytes.append(&mut 6u16.to_le_bytes().to_vec());
bytes.extend_from_slice(&6u16.to_le_bytes());
let flags = (self.shared as u8) << 3
| (self.active_low as u8) << 2
| (self.edge_triggered as u8) << 1
| self.consumer as u8;
bytes.push(flags);
bytes.push(1u8); /* count */
bytes.append(&mut self.number.to_le_bytes().to_vec());
bytes.extend_from_slice(&self.number.to_le_bytes());
}
}